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Leica M-844,M-820 Surgical Microscope

1. Use the rotary switch 1 to change between BIOM and slit lamp Sterile covers for the slit tube The slit tube of the slit lamp can be protected by sterile cover 3 the lever for adjusting the slit width can be protected by sterile cover 4 Insert the plug of the BIOM into the socket 2 on the slit lamp Phototoxic damage to the retina during eye surgery Warning 6 Damage to the eyes due to prolonged exposure The light of the instrument may be harmful Risk of eye damage increases with the duration of exposure Do not exceed the exposure limits An exposure to this instrument for longer than 2 8 min at maximum output power exceeds the exposure limits The following table shows the allowed surgery durations and their possible extension when reducing the slit width slit width mm time s gt 6 164 181 233 455 5 4 3 210 2 909 Protect the patient by e short illumination times low brightness level e switching the light off when interrupting the surgery It is recommended to adjust the brightness to the minimum nec essary for the surgery Babies or aphacia patients where the eye lens has not been exchanged by an artificial lens with UV protection infants and patients with eye sickness are at a greater risk There also is a greater risk if the patient was exposed to the same or any other ophtham
2. Check the power cable Fault remedy Slide the quick change lamp mount to the other side see page 39 Fault remedy If the main light fails during the operation switch to the other lamp using the quick change lamp mount After the operation check the bulbs and replace the defective bulb see page 59 62 Leica M844 Leica M820 Ref 10 713 294 Version Fault There is no OttoFlex Il light in the microscope Cause 1 A filter slide is inserted Cause 2 The switch is set to the Slitlamp position Cause 3 Bulb is defective Fault The image goes out of focus Cause 1 Eyepieces not seated properly Cause 2 Dioptric correction is not set correctly Fault Zoom cannot be adjusted electrically Cause 1 Zoom motor has failed Fault Unwanted reflections Cause 1 The sterile drape produces stray reflections Fault The surgical microscope does not move or requires undue force Cause 1 A cable is jammed Cause 2 The transport lock has not been released Cause 3 A brake is not released What to do if Fault remedy Check to see whether a filter slide is inserted if so pull it out Switch the OttoFlex II back on Fault remedy Check the position of the Otto Flex Slitlamp switch see page 23 and set it to Otto Flex Fault remedy Check the bulbs and replace any that are defective see page 59 Fault remedy Check the seating of the eyepieces and scr
3. 12 function footswitch with long or cross pedals 12 function handswitch 16 function footswitch with cross pedals 28 3 kg with accessories and XY unit Integrated illumination concept for intense uniform red reflex Illuminator module for increasing red reflex decreasing stray light through the sclera and increasing image contrast Variable field diameter from 4 mm 35 mm at WD 200 mm Precision formed halogen bulb 12 V 50 W With two precision formed halogen bulbs 12 V 50 W IR barrier filter and UV barrier filter GG420 integrated Accessories 0 assistant s attachment Double wing TV photo Wide angle observation system Inverter Lasers Slit lamp Asepsis Leica M844 Leica M820 Ref 10 713 294 Version 100 stereopsis at the same magnification integrated fine focus rotary ring for binocular tube 15 documentation port for 3 simultaneous observers Leica 2D video systems Leica D2D digital video system Leica zoom video adapter f 35 100 mm Photo TV dual attachment f 60 85 107 mm for TV f 250 350 mm for 35 mm camera TV tube f 107 mm Phototube f 250 350 mm BIOM EIBOS AVI SDI OIVSL ROLS Adapters for installation are available from laser manufacturer Motorized 23 slit width 0 01 15 mm slit length 3 15 mm 180 revolving quick change lamp mount All operating elements can be sterilized sterile drapes are available
4. If you have assigned the StepCycle function to the footswitch we recommend tthat you check the StepCycle procedure without patient before starting the operation LE Leica M844 Leica M820 Ref 10 713 294 Version 41 Use Editing the user list Various functions are available in the user list depending on the situation If you select a user the available functions appear in the dynamic button bar Move Moves the selected user to another available location of your choosing Set Favorite Defines a user in the user list whose settings can be directly retrieved from the Main or Speed menu by clicking the Favorite button Delete Deletes the selected user You must click Confirm to confirm this action Rename Renames an existing user The user s settings are not changed You can reach the editing mode of the user list via the User Settings menu and the Edit User List button in the dynamic button bar I n 2 m e al 3 Orbea a 13 x BL 9 Dro Cataract M aaea 5 yo 15 t 30 Faroe We recommend that you do not change the configura tion of the user settings or edit the user list during an operation Configuring users User Settings menu User Settings You can configure user settings in this menu Load New User Mew Cataract Mew Retina Load Loads the settings of an existing user so that you can modify them New User Opens a
5. Leica M820 Ref 10 713 294 Version 9 Controls C40 ceiling mount Remote control 7 Handles 19 Power switch 20 Balancing knob 21 Swing arm stop lever 24 Touch panel 26 No function 27 Up 28 Down 25 Power supply 26 Fuse holder 2x 6 3 A time lag 27 Hour meter for the surgical microscope 28 Potential equalization socket Cantal 29 Socket for remote brake release Switch 30 Auxiliary power outlet max output power 100 VA For requirements of use see the Technical data page 67 31 Fuse holder 1 A time lag Type 10448139 SN 211004003 Made in CH Caution 1 Connecting unauthorized secondary devices to the Ars UU auxiliary power socket can lead to damage to the m surgical microscope and to the secondary device Grounding reliability can iy ui Never connect secondary devices to the auxiliary only be achieved when 100V 230V 50 60Hz bl EQUIPMENT is connected to M power socket unless they conform to the specifica equivalent receptacle marked gt Hospital only or Hospital Grade tions For requirements of use see the Technical data page 67 10 Leica M844 Leica M820 Ref 10 713 294 Version Controls CT40 ceiling mount Remote control 7 Handles 19 Power switch 20 Balancing knob 21 Swing arm stop lever 24 Touch panel 27 Up 28 Down 25 Power supply 26 Fuse holder 2x 6 3 A time lag 27 Hour meter for the surgical microscope er 28 Potential equaliz
6. Leica M844 Leica M820 User manual 10 713 294 Version Living up to Life Jeica MICROSYSTEMS Thank you for purchasing a Leica surgical microscope system In developing our systems we have placed great emphasis on simple self explanatory operation Nevertheless we suggest studying this user manual in detail in order to utilize all the benefits of your new surgical microscope For valuable information about Leica Microsystems products and services and the address of your nearest Leica representative please visit our website www leica microsystems com Thank you for choosing our products We hope that you will enjoy the quality and performance of your Leica Microsystems Surgical microscope Leica Microsystems Schweiz AG Surgical Division CH 9435 Heerbrugg Leica M844 Leica M820 Ref 10 713 294 Version Leica M844 Leica M820 Ref 10 713 294 Version Chapter overview Introduction 3 Operating elements 8 Preparation before operation 21 Use 38 Safety notes 48 Care and maintenance 58 What to do if 62 Technical data 66 This manual covers the following systems Leica M844 F40 Leica M844 F19 Leica M844 C40 Leica M844 CT40 Leica M820 F40 Leica M820 F19 Leica M820 C40 Leica M820 CT40 Contents Page Introduction Design and function 4 Operating elements Stands ceiling mounts 8 Control unit 12 Leica M844 and Leica M820 surgical microscopes 13 Leica M844 accessories 14
7. Wan Do not use a beam splitter in addition to the 0 assistant s attachment Fitting the tube Release the clamping screw on the dovetail ring of the 0 assistants attachment and remove the black protective cover Carefully insert the second observer tube and tighten the clamping screw Fitting eyepieces Fasten the eyepieces with the fixing rings in the tubes Fitting the Double Wing We recommend mounting the longer arm of the Double Wing on the side of the focus housing in order to achieve optimal ergonomic conditions Screw out the clamping screw until it stops by means of the screwdriver Insert the attachment of the Double Wing into the dovetail ring so that the arrow Is positioned exactly over the clamping screw Hold the Double Wing firmly and tighten the clamping screw Wan When the combination with the Double Wing is used we recommend that the main surgeon uses the UltraLow binocular tube The UltraLow II binocular tube offers better ergonomic conditions 22 Leica M844 Leica M820 Ref 10 713 294 Version Fitting optical accessories for Leica M820 Warning 3 A Risk of injury from downward movement of surgical microscope Complete all preparations and adjustments to the stand before the operation Never balance or re equip the instrument over the field of operation Before re equipping always lock the swing arm gt After re equipping always rebalance th
8. Warning 2 Danger of fatal electric shock Operate the system only with all equipment in its proper position all covers fitted doors closed Warning 3 A Risk of injury through surgical microscope moving down Complete all preparations and adjustments to the stand before the operation Never balance or re equip the instrument over the field of operation Before re equipping always lock the swing arm After re equipping always rebalance the microscope on the swing arm Do not release the brakes when the instrument is in an unbalanced state Before re equipping during the operation first swing the microscope away from the operating field Warning 4 A Danger of burns The lamp housing and cover may become hot during use Warning 5 A There is a danger of injury to the patient as a result of changing the working distance using the motorized adjustment of the telescopic stand if the working dis tance falls below the minimum of 140 mm due to the use of accessories such as wide angle observation systems gt The footswitch function for moving the telescopic stand up and down may not be used in combination with accessories that cause the working distance to fall below the minimum of 140 mm Before up down movements always check first to ensure that the range of movement is free of obstructions Safety notes Warning 6 Risk of injury through surgical microscope moving down Ne
9. IEC 61000 4 3 Radiated HF 3 V m d 24VP IEC 61000 4 3 80 MHz to 2 5 GHz for 80 MHz to 2 5 GHz Where Pis the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer and d is the recommended separation distance in meters m Field strengths from fixed HF transmitters as determined by an electromagnetic site survey should be less than the compliance level in each frequency range Interference may occur in the vicinity of equipment marked with the following symbol Co Note 1 At 80 MHz the higher frequency range applies Note 2 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people Field strengths from fixed transmitters such as base stations for radio cellular cordless telephones and land mobile radios amateur radio AM and FM broadcast and TV broadcast cannot be predicted theoretically with accuracy To assess the electromagnetic environment due to fixed HF transmitters an electromagnetic site survey should be considered If the measured field strength in the location in which the Leica M820 and Leica M844 surgical microscopes are used exceeds the applicable HF compliance level above the Leica M820 and Leica M844 surgical microscopes should be observed to verify normal operation If abnormal performance is observed additional measures may be necessary such as reorienting or
10. Set to the maximum magnification Focus the microscope Rotary ring for adjusting the diopters Set to the minimum magnification Without looking into the eyepieces turn both eye lenses to 5 diopters Slowly turn the eyepieces towards 5 individually for each eye until the test object appears sharp gt Select the highest magnification and check the sharpness This procedure has to be performed only once for each user The acquired values can be stored for each user in the User Settings menu under Tube Settings see page 44 Adjusting the pupillary distance Eyecup Rotate the eyecups up or down until the desired distance Is set Checking parfocality Place a flat test object with sharp contours under the lens at working distance Zoom through the whole range observing the test object D The image sharpness must remain constant at all magnifications If this is not the case check diopter settings of the eyepieces 24 Leica M844 Leica M820 Ref 10 713 294 Version Adjusting optical accessories for Leica M844 Adjusting the 0 assistant s attachment Changing the assistant side Loosen the screw lift the surgeon tube on quick changer and rotate the assistant tube to the other side Retighten the screw After changing the assistant side turn the camera by 180 to correct the orientation of the video image No accessor
11. Sweden Kista Tel 46 8 625 45 45 Fax 46 8 625 45 10 Switzerland Heerbrugg Tel 41 71 726 34 34 Fax 41 71 726 34 44 United Kingdom Milton Keynes Tel 44 1908 246 246 Fax 44 1908 609 992 USA Bannockburn Illinois Tel 1 847 405 0123 Fax 1 847 405 0164 and representatives in more than 100 countries The Surgical Division within Leica Microsystems Schweiz AG holds the management system certificates for the international standards ISO 9001 2000 ISO 13485 2003 and ISO 14001 2004 relating to quality management quality assurance and environmental management eca MICROSYSTEMS 10 713 294en l Leica Microsystems Schweiz AG CH 9435 Heerbrugg 2009 Printed in Switzerland 1V 2009 RDV Illustrations descriptions and technical data are not binding and may be changed without notice
12. Wan For Leica M820 F19 and M844 F19 regulate the articulation brakes according to personal requirements and accessory weight see page 34 Fine positioning Use joystick on footswitch to operate X Y drive and position the microscope gr Return to middle position by pressing the Reset key 59 or the Reset buttons on the control unit You can assign the function XY Reverse on your handswitch or footswitch in order to reverse the X and Y movement directions Adjusting the tilt Turn the rotary knob 56 for tilt adjustment in the desired direction and hold it there gt The microscope tilts in the desired direction The microscope can be tilted 15 forwards and 50 backwards Wan Pressing the Reset button on the control unit returns the microscope to home position 0 Reset Buttons Reset If a drive is in reset position the reset button assigned to it appears In green DA Reset button that flashes green indicates that the corresponding drive is moving to reset position DA Reset button that appears in gray indicates that the corresponding drive is outside of the reset position Drive settings Pressing the Reset All button returns all motors to home position and reloads the user settings of the Current user You can adjust the speed at which each of the drives Is moved on the Speed menu screen You can change the drive speeds by clicking the
13. photo objective to the camera adapter Fit the camera to the dual attachment Tighten the clamping screw Loosen the clamping screw and engage the video camera until it latches in one of the 45 steps depending on the avail able space Tighten the clamping screw Video camera such as the Leica D2D V3 Clamping screw Wan The object image at the camera output Is laterally reversed E ed to 30 50 or 100 One of these filters can be switched with the 8 filter provided To do so remove the camera and change the filter in the TV output TV attachment zoom video adapter DFasten the TV attachment to the video port of the 0 assistant s attachment Leica M844 or the beam splitter Leica M820 Screw the adapter to the camera using the C mount Insert the camera with the adapter into the TV attachment and tighten the clamping screw 90 click stop TV attachment only Loosen the clamping screw Latch the camera at one of the 90 steps in accordance with the space available and tighten the clamping screw video camera such as the Leica D2D V3 C mount adapter ee re screw lo TV attachment Adjust parfocality of the zoom video adapter Select the highest magnification Place a flat test object with sharp contours under the objective Look through the eyepieces and focus the microscope gt Select the lowest magnification Set the maximum magnificat
14. relocating the Leica M820 and Leica M844 surgical microscopes Over the frequency range 150 kHz to 80 MHz field strengths should be less than 3 V m Leica M844 Leica M820 Ref 10 713 294 Version 53 Guidance and manufacturer s declaration Table 206 from EN 60601 1 2 2001 Recommended separation distances between portable and mobile HF telecommunications equipment and the Leica M820 and Leica M844 surgical microscopes The Leica M820 and Leica M844 surgical microscopes are intended for use in an electromagnetic environment in which radiated HF disturbances are controlled The customer or user of the Leica M820 and Leica M844 surgical microscopes can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile HF communication equipment transmitters and the Leica M820 and Leica M844 as recommended below according to the maximum output power of the communications equipment Separation distance according to frequency of transmitter in m Rated maximum output 150 kHz to 2 5 GHz power of transmitter W d 24VP inm For transmitters rated at a maximum output power not listed above the recommended separation distance d in meters m can be estimated using the equation applicable to the frequency of the transmitter where P is the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer Note 1 These guidelines may not apply in all situati
15. Accessories from third party manufacturers Electrical data Power socket F40 floor stand F19 floor stand CT40 ceiling mount C40 ceiling mount Fuse Power consumption Leica M844 M820 F40 Leica M844 M820 F19 Leica M844 M820 C40 Leica Ceiling Mount Leica M844 M820 CT40 Leica M844 M820 CT 40 Protection class Central on the horizontal arm 100 240 VAC 10 50 60 Hz Central on the horizontal arm 100 240 VAC 10 50 60 Hz Terminal strip on the ceiling 100 120 VAC 220 240 VAC 10 50 60 Hz Terminal block on the ceiling 100 120 VAC 220 240 VAC 10 50 60 Hz 2x 6 3 A time lag 400 VA 300 VA 400 VA without ceiling mount 400 VA ceiling mount only 120V 60 Hz 1500 VA whole system incl telescope 230V 50 Hz 1400 VA whole system incl telescope Class 1 Auxiliary power socket Max permitted power consumption of the secondary device Max permitted ground leakage current of the secondary device Required conformity of the secondary device 100 VA 200 pA at 110 V 300 pA at 230 V EN 60601 1 Europe UL 60601 1 USA If the device does not conform it must be connected via an Isolating transformer If the ground leakage current exceeds the permitted limit value the following measures are required e Device does not conform to EN 60601 1 Europe UL 60601 1 USA Connection via isolating transformer e Device conforms to EN 60601 1 Europe UL 606
16. Controls Leica M844 and Leica M820 accessories NN Binocular tube 180 variable e tilts 180 Binocular tube 10 50 UltraLow II e with extra low viewing height e adjustable viewing angle and height e adjustable interpupillary distance Binocular tube 5 25 e adjustable viewing angle and height e adjustable interpupillary distance Binocular tube 10 50 with PD e adjustable viewing angle and height e adjustable interpupillary distance Binocular tube low e not tiltable Binocular tube 10 50 low e adjustable viewing angle and height e adjustable interpupillary distance 16 Binocular tube 30 150 e tilts 120 e adjustable interpupillary distance Leica M844 Leica M820 Ref 10 713 294 Version Foot handswitches and handles Standard configuration Cataract Here is an overview of all possible footswitches and handswitches that you can use to control your Leica M820 and Leica M844 surgical microscopes with the standard configuration Cataract Footswitches handswitches and handles can be individually assigned for each user in the configuration menu see page 43 12 function footswitch cross Controls 16 function footswitch cross Jl lo o gt 7 NEUES zz Ciel ri diel ES A e mmm Handswitch Ottoflex Lights Handles Selected Br
17. EN 60601 1 2 2001 Portable and mobile as well as stationary HF communications equipment can have a negative effect on the reliability of the Leica M820 and Leica M844 surgical microscopes Directions for the person responsible for the instrument Ensure that the surgical microscope is used only by persons qualified to do so Ensure that this user manual is always available at the place where the surgical microscope is in use Carry out regular inspections to make certain that the authorized users are adhering to safety requirements When instructing new users do so thoroughly and explain the meanings of the warning signs and messages Assign individual responsibilities for starting operating and servicing the Leica surgical microscope and monitor the observance of these responsibilities Only use the surgical microscope if it is free of defects Inform your Leica representative or Leica Microsystems Schweiz AG Surgical Division 9435 Heerbrugg Switzerland immediately if you detect a product defect that could potentially cause injury or harm If you use accessories made by third party manufacturers with the Leica surgical microscope be sure that each such manufacturer confirms the safety engineering harmless usability of the product and observe the product s user manual Modifications to or service on the surgical microscope may be carried out only by technicians who are explicitly authorized by Leica
18. Quick change lamp mount The main light has a quick change lamp mount gt If a main lamp fails during the operation simply switch over to the second lamp Activate the second lamp by moving the quick change lamp mount on the underside of the optics carrier Wan The yellow Check button appears on the control unit If you click the button the informational message Check Main Light 1 or 2 is displayed Replace the defective bulb after the operation see page 59 Filters There are two slots 62 in the microscope housing into which filter slides can be inserted Left filter slot Right filter slot Color filter cobalt filter Special filters or diaphragms The plane of filter is sharply imaged in the same plane as the object The GG420 UV protection filter is built in In addition the GG475 UV protection filter is available Remove the filter cover Push in the filter slide inclined slightly upwards until it engages Inserting a filter automatically deactivates the OttoFlex II lamp On the control unit main menu the brightness bar for the OttoFlex II lamp goes back to zero and the caption changes to Filter active E If a slit lamp is active it is not switched off if a filter slide is inserted After the filter has been removed the OttoFlex II lamp can be switched back on using the hand footswitch or at the control unit Leica M844 Leica M820 Ref 10 713 294 Versi
19. and buttons You can also set the speed by directly clicking the display bars These values can be saved individually for each user see page 39 38 Leica M844 Leica M820 Ref 10 713 294 Version Adjusting the microscope Adjusting the illumination N Warning 12 Light which is too intensive can damage the retina Safeguard your patients short exposure times low brightness setting use protective filters GG420 built in We recommend setting the minimal required light intensity for the operation Infants small children aphakic patients who have not had their lenses replaced by artificial lenses with UV protection and persons with eye diseases are at higher risk The risk is also elevated if the person to be treated has been exposed to illumina tion from the same or a similar ophthalmological instrument with an intense visible light source within the previous 24 hours This applies especially to patients that have been examined via retinal photography The decision with regard to the light intensity to be used must be made on a case by case basis In any event the surgeon must evaluate the risks and benefits of the used light intensity Damage may occur despite all efforts to minimize the risk of retinal injury by surgical microscopes Photochemical retina damage is a possible complication arising from the necessity to use intense light to make eye structures visible during difficult ophthalmological processes A
20. by a temperature switch that switches off in case of overheating Cause 2 Poor plug contact Cause 3 Customer s fuse defective F19 stand Fault The swing arm moves up down by itself Cause 1 Swing arm is not balanced Cause 2 Bad cabling Fault The swing arm sinks even at the highest level of the balancing scale Cause Maximum load of optics carrier exceeded Fault The microscope is difficult to position Cause Articulation brakes are too tightened TV photography Fault The image on the monitor is too dark Cause 1 The video camera and or monitor are not set correctly Cause 2 Filter in dual attachment is set incorrectly Fault Photos are blurry Cause 1 Parfocality of microscope has not been adjusted Cause 2 Object is out of focus What to do if Fault remedy gt Wait approximately 30 45 minutes until the telescope motor has cooled off Fault remedy gt Check the clamping terminal gt Check the plug of the remote control Fault remedy gt Replace the fuse Fault remedy gt Balance swing arm see page 34 Fault remedy gt Check the position of the cables especially in case of subsequently added video cables Fault remedy gt Reduce the total weight of the microscope and accessories Fault remedy gt Adjust the articulation brakes so that you can position the microscope easily see page 34 Fault remedy gt O
21. can affect the red reflex in the video image 66 Clamping screw for locking the binocular tube in place Optionally the clamping screw can be replaced with the provided slotted screw 67 Clamping screw for releasing the quick changer 68 Focus fine adjustment knob 69 Lever for turning the binocular tube by 15 The Double Wing allows for a third observer in addition to the surgeon and the assistant e i SASS io e or 1 e the same image detail for each observer e 50 light distribution with the assistant still 100 light for the surgeon e 100 stereopsis for all observers e 15 horizontal rotation of binocular tubes gr The M84x Double Wing 10446740 is available as an optional accessory 14 Leica M844 Leica M820 Ref 10 713 294 Version Controls Leica M820 accessories A comprehensive range of accessories enables the Leica M820 surgical microscope to be matched to the requirements of the task in hand Your Leica representative will be pleased to help you select the appropriate accessories Beam splitter Beam splitter rotatable 50 50 Attachment for second observer Allows viewing by a second person or documentation Light distribution 50 to the side 50 backwards The side exit allows a 180 rotation to the left and right Rotate always completely to the left or right side and tighten with clamping screw 1 Leica M844 Leica M820 Ref 10 713 294 Version 15
22. new user with empty settings New Cataract Loads the default settings for Cataract so that you can modify them New Retina Loads the default settings for Retina so that you can modify them Wan You can also add a user from the operational menu If you want to keep the current settings you can save them by clicking the Save button which appears as soon as the basic settings of the current users have been changed either for the current user Save Current or under a new username Save as New Saving the user settings Click the Save button Select an available location in the user list at which you want to create your user If you like you can edit the user list first Enter the desired username using the keyboard Click the Save button to save the user at the desired location under the name you have entered Enter usermame Dr Leica i a J 4 E amp T E a Ca ww E x T Y u T o F E 5 E L amp BH J La L Ed I x Li t fl H 42 Leica M844 Leica M820 Ref 10 713 294 Version Setting the light start values You can set the start values for the main lamps the OttoFlex II lamp and the magnification on this screen c Clicking the or key changes the values in increments of one Holding down the key with your finger changes the value in increments of five You can also set the desired value by directly clicking the bars Setting the drive st
23. together with acces sories from other manufacturers that reduces the working distance to less than 140 mm non contact wide angle observation systems as focus together with StepCycle a semiautomated function When cycling through the StepCycle function only gr For the StepCycle function to be available you must the actively set parameters for the individual user are first assign it to a key on your footswitch handswitch activated Then the Rec Cycle button appears in the dynamic button bar 47 You can create an individual StepCycle procedure for each user Ter L StepCycle recording mode From the Main or Speed menu double click the Rec Cycle button to activate it Press the button on your footswitch handswitch to which you have assigned the Rec Cycle function The currently set values for the StepCycle parameters are saved c You can save a maximum of 10 StepCycle settings Exit the StepCycle teach in mode by double clicking the Rec Cycle button c Press Save to store your StepCycle settings Wan It is only possible to store a complete StepCycle cycle Individual steps cannot be modified Leica M844 Leica M820 Ref 10 713 294 Version 45 Use Running through the StepCycle If StepCycle settings have been saved for a user the right status bar displays information indicating which step the user is currently in and how many steps there ar
24. 01 1 USA Connection via potential equalization or isolating transformer Optical data Technical data With UltraLow Il binocular tube Objective Leica OptiChrome WD 175 mm f 200 mm Eyepiece Total magnification Field of view mm 8 33x 3 4x 20 4x 53 9 9 0 10x 4 1x 24 5x 51 4 8 6 12 5x 5 1x 30 7x 41 6 6 9 Objective Leica OptiChrome WD 200 mm f 225 mm Eyepiece Total magnification Field of view mm 8 33x 3 0x 18 2x 60 6 10 1 10x 3 6x 21 8x 57 8 9 6 12 5x 4 5x 27 3x 46 8 7 8 Objective Leica OptiChrome WD 225 mm f 250 mm Eyepiece Total magnification Field of view mm 8 33x 2 1x 16 3x 67 3 11 2 10x 3 3x 19 6x 64 3 10 7 12 5x 4 1x 24 5x 52 0 8 7 Leica M844 Leica M820 Ref 10 713 294 Version 67 Technical data Stands ceiling mounts F40 floor stand Castors Weight Total weight Brakes Load Space requirement Range Stroke Balancing Turning range F19 floor stand Castors Weight of base Total weight Brakes Load Space requirement Range Stroke Balancing Turning range 68 C40 ceiling mount 4x 82 5 mm Ceiling attachment Base 174 kg Column 83 kg Approx 330 kg with max load Four electromagnetic brakes operated by turning the handles one stop lever for vertical Weight movement Max 12 2 kg from microscope dovetail rin
25. 3 A brake is not released C40 ceiling mount Fault Leica M844 C40 or Leica M820 C40 rotates Fault The Leica M844 C40 or Leica M820 C40 drifts up or down Fault remedy gt Switch to control unit mode see page 40 Fault remedy gt Check to ensure that the cable connections are tight Fault remedy gt Contact your Leica representative gt You can still work with your Leica microscope All functions can still be operated using the footswitch handswitch Fault remedy gt Switch to the second lamp using the corresponding quick change lamp mount gt Replace the defective bulb as soon as possible Fault remedy gt Replace the defective bulb as soon as possible Fault remedy gt Contact your Leica representative Fault remedy gt Move the jammed cable to another position Fault remedy gt Release the transport lock see page 36 Fault remedy gt Contact your Leica representative Fault remedy gt Contact your Leica representative gt Have the adjustment of the suspension checked and readjusted Fault remedy gt Contact your Leica representative gt Have your Leica service technician slightly brake the corresponding axis using the built in drift brakes 64 Leica M844 Leica M820 Ref 10 713 294 Version CT40 ceiling mount Fault The Leica CT40 cannot be moved up or down Cause 1 The Leica CT40 is protected
26. 4 Version l Introduction Introduction Leica M844 C40 and Leica M820 C40 oo Nogo o RA WON 17 Control unit Horizontal arm Swing arm XY unit Binocular tube 0 assistants attachment Handle Optics carrier 9 Tilt head 13 Holding fixture for video control unit 16 C40 ceiling mount 17 Wall mount for control unit optional Leica M844 Leica M820 Ref 10 713 294 Version Leica M844 CT40 and Leica M820 CT40 com OoFP WN Control unit 9 Tilt head Horizontal arm 13 Holding fixture for video control unit Swing arm 17 Wall mount for control unit optional XY unit 18 CT40 ceiling mount Binocular tube 0 assistant s attachment Leica M844 only Handle Optics carrier Leica M844 Leica M820 Ref 10 713 294 Version Introduction Controls Stands ceiling mounts F40 floor stand m 19 Ce max power output 100 VA T1A 250V Grounding reliability can only be achieved when EQUIPMENT is connected to equivalent receptacle marked Hospital only or Hospital Grade Remote Control e 10448139 211004003 19 20 21 22 23 24 25 26 21 28 29 30 31 Handles Power switch Balancing knob Swing arm stop lever Footbrake release lever Footbrake Touch panel Power supply Fuse holder 2x 6 3 A time lag Running time meter for the surgical microscope Potential equalization socket Socket for remote brake release Auxiliary power ou
27. 40 and Leica M844 F40 surgical microscopes from uncontrolled tilting DFirmly grasp the handles before triggering the All Brakes function Unplug and secure the power cable Pull the stop lever and bring it into a vertical position Grasp and turn one or both handles to release the brakes All Brakes Move the swing arm up and down until the transport lock engages Bring swing arm into transport position Stop lever ET Footbrake and release lever p uw Release the handle Turn the control unit towards the swing arm Hang the footswitch on the suspension device Step on the footbrake release lever to release the footbrakes Move the Leica M820 F40 and Leica M844 F40 by the handle Always push the instrument to displace it never pull it Preparation for operation Ensure that the display of the control unit does not col lide with the XY unit Transport of the Leica M844 F19 and Leica M820 F19 AN Warning 9 Beware of Uncontrolled lateral movement of the swing arm e Tilting of the stand e Feet in lightweight shoes could become trapped beneath the casing of the base Before transport always set the Leica M820 F19 and Leica M844 F19 surgical microscopes to the transport position Never move the stand in the extended condition Always push the instrument to displace it never pull it Never roll over cables lying on the floor AN Caution 3 Surgical
28. CF2 using these two keys Rotate the prism into middle position Rotate the prism into both end positions and adjust the magnification so that the slit remains in the image field to the left and right Make sure that there is no obvious difference between the prism end positions for lateral adjustment referring to the slit image and the edge of the diaphragm Prism into middle position Wan Left hand and right hand of the arc there are two lock able stoppers 1 which may be adjusted individually by the doctor When a stopper is reached it may be circumnavigated by pressing the hand switch or foot switch again End position End position II Preparation for operation Emergency operation If the motor of the prism is inoperative the prism may be moved by hand Dismounting the slit lamp Wan When dismounting the slit lamp make sure that both stoppers are in the bottom position Leica M844 Leica M820 Ref 10 713 294 Version 29 Adjusting the slit lamp AN Caution 2 Danger of crushing due to moving parts The parts of the slit lamp that are moved by motors may crush fingers or the hand when used improperly When handling the slit lamp take care not to crush any fingers gt For activation of the slit lamp use the Slitlamp OttoFlex switch 53 on the optics carrier see page 13 Adjusting the brightness of the slit lamp AN Warni
29. E T Li Symbol for fuses quer erus el ares rapip oie pd lee ied danh pars Leica M844 Leica M820 Ref 10 713 294 Version 55 Safety notes signs and labels Leica Telescope Mount Leica Microsystems Schweiz AG CH 9435 Heerbrugg MODEL LEICA MBs W820 Clad 270 S50Hz 1400VA C Leica Microsystems Schweiz AG CH 9635 Heerbrugg MODE LEICA M844 M820 CT40 120V 60Wz 1500VA C 56 Leica M844 Leica M820 Ref 10 713 294 Version Safety notes Signs and labels Horizontal arm and swing arm F40 C40 CT40 FN Lo ty in E n v CAUTION HIGH PRESSURE DO NOT OPEN AA TYPE 10448139 SN DDMMYYXX Made in CH ETL LISE fi FAT IFIED 100 VA T1A 250V Lilia Bceerertunt Sdwa 2 Jes NLJS Geerbragg IN Grounding reliability can fe ui mia r men nua Caution Follow the User Manual v Dpt Db only be achieved when um EQUIPMENT is connected to En none Danger sign for contusions equivalent receptacle marked C Hospital only or Hospital Grade pm balca M rite ciment h kd A N BLYG Hrrerbragg La fiabilit de la mise MEL LEICA ALOT CAE Danger sign for hot surface la terre n est assur e que mnn si l quipement est connect une prise quivalente marqu e H pital seulement ou Qualit h pital IT TT TES m 33 ce Symbol for alternating curr
30. Leica M655 sterilizable Handle for Leica M695 Cap for Leica M655 M695 sterilizable Permissible sterilization methods Steam autoclave 134 C t gt 10 min X P lt Ethylene oxide max 60 C x x x Care and maintenance Products with optical components can be steam autoclaved using the conditions listed above However this may lead to the formation of a layer of dots and streaks on the glass surface which may reduce the optical performance Leica M844 Leica M820 Ref 10 713 294 Version 61 What to do if Wan If electrically operated functions do not work properly always check these points first els the power switch switched on e s the power cable attached correctly Are all connecting cables attached correctly General Fault The functions cannot be activated with the handswitch or footswitch Cause 1 A cable connection has loosened Cause 2 Assignment entered incorrectly on the control unit Microscope Fault There is no light in the microscope Cause 1 A cable connection has loosened Cause 2 Quick change lamp mount not positioned correctly Cause 3 Bulb is defective message Check Mainlamp 1 2 appears Fault remedy Check the power cable Check the handle connections Fault remedy Check the assignment of the footswitch handswitch on the control unit see page 43 Fault remedy Check the electrical connections
31. Leica M820 accessories 15 Beam splitter rotatable 50 50 15 Leica M844 and Leica M820 accessories 16 Foot handswitches and handles 17 Video and photo accessories for Leica M844 19 Video and photo accessories for Leica M820 20 Preparation for operation Pre operation checklist 21 Fitting optical accessories for Leica M844 22 Fitting optical accessories for Leica M820 23 Mounting beam splitter rotatable 23 Adjusting optical accessories general information 24 Adjusting optical accessories for Leica M844 25 Fitting documentation accessories 26 Selecting documentation accessories 2 Fitting the slit lamp 28 Adjusting the slit lamp 30 Wide angle observation system 22 Stand settings F40 C40 CT40 33 Stand settings F19 34 Transport transporting and rest positions 35 Positioning at the operating table 36 Sterile controls 37 Use Positioning the microscope 38 Adjusting the microscope 39 Touch panel 40 Switching the microscope on 41 Selecting users 41 Editing the user list 42 Configuring users User Settings menu 42 StepCycle 45 Auto Reset 46 The Maintenance menu 46 The How to menu 4 The Service menu 47 Safety notes Intended use 48 Directions for the person responsible for the instrument 48 User qualifications 48 Directions for the operator of the instrument 48 Dangers of use 49 2 Manufacturer s declaration of electromagnetic compatibility Signs and labels Care and maintenance Maintenance instructions Cleaning the t
32. Reset button 45 Footswitch or handswitch 1 40 USB connection 46 Footswitch or handswitch 2 41 Video input BNC 47 ADF Additional Function 1 42 Internal CAN 1 48 ADF Additional Function 2 43 Internal CAN 2 Wan ADF 1 and 2 are digital relay outputs that can switch 24 V 2 A During operation use only the cables provided for CAN video and footswitch in order to prevent malfunctions 12 Leica M844 Leica M820 Ref 10 713 294 Version Controls Leica M844 and Leica M820 surgical microscopes 57 49 63 62 61 7 Handles 56 Rotary knob for tilt drive motorized 49 Lamp cover opener 57 Magnification display with XY reverse display 50 OCF Optics Carrier Functions 58 Focus reset 51 CAN bus 59 XY reset 52 Socket for external supply of slit lamp 60 Manual zoom emergency drive 53 OttoFlex slit lamp switch 61 Quick change lamp mount 54 Rotary knob for focus fine adjustment 0 assistant s 62 Slot for filter slide attachment for Leica M844 only 63 OttoFlex II iris diaphragm Leica M844 Leica M820 Ref 10 713 294 Version 13 Controls Leica M844 accessories A comprehensive range of accessories enables the Leica M844 surgical microscope to be matched to the requirements of the task in hand Your Leica representative will be pleased to help you select the appropriate accessories 0 assistant s attachment Double wing 64 Documentation port 65 Rotary ring for adjusting the diaphragm Wan Closing the diaphragm
33. Video system for recording 2D video sequences e The camera A is installed between the optics carrier and the binocular tube Leica 2D C Mount e Video system for recording 2D video sequences e The camera I is mounted on the TV attachment or zoom video adapter Photo TV dual attachment e For using a video camera with C mount at the same time as an SLR camera Complete with adapters e Video camera engageable in 45 increments e Video outlet with incorporated brightness adjustment 3 positions ce cC E F Zoom video adapter G Phototube H Video camera such as the Leica D2D V3 Leica 2D C Mount TV attachment e For commercially available video cameras with C mount complete with adapter e The TV tube attachment E is installed at the beam splitter e Video camera engageable in 90 increments Zoom video adapter e For commercially available video cameras with C mount complete with adapter e The zoom video adapter F is installed at the beam splitter e Zoom and fine focus function for Leica zoom video adapter Phototube e Complete with adapter for SLR cameras e Adapter f 250 mm forlarge fields of view and short exposure times e Adapterf 2 350mm for high magnifications e The phototube G is installed at the beam splitter 20 Leica M844 Leica M820 Ref 10 713 294 Version Checklist Before the operation Cleaning the o
34. Y unit 270 CT40 ceiling mount Ceiling attachment Weight Total weight Brakes Load Range Travel range Balancing Turning range Max distance from concrete ceiling to intermediate ceiling 1200 mm Attachment to concrete shell construction ceiling 440 mm hole circle 4 x M12 HSLB M12 15 Swing arm 44 kg Approx 146 kg owing arm Four electromagnetic brakes operated by turning the handles one stop lever for vertical movement Swing arm Max 12 2 kg from microscope dovetail ring interface Extension 1492 mm max Telescopic unit 500 mm Swing arm 846 mm via gas spring Axis 1 ceiling mount x90 Axis 2 in the middle 135 Axis 3 over XY unit 270 Technical data Ambient conditions In use 10 C to 40 C 50 F to 104 F 30 to 95 rel humidity 500 mbar to 1060 mbar atmospheric pressure Storage 40 C to 70 C 40 F to 158 F 10 to 100 rel humidity 500 mbar to 1060 mbar atmospheric pressure Standards fulfilled Conformity C Medical devices directive 93 42 EEC Classification Class in compliance with appendix IX rule 1 with reference to rule 12 of the directive Medical electrical equipment Part 1 General requirements for safety IEC 60601 1 EN 60601 1 UL60601 1 CAN CSA C22 2 NO 601 1 M90 e Electromagnetic compatibility IEC 60601 1 2 EN 60601 1 2 The Surgical Division within Leica Microsystems Schweiz AG has the manageme
35. a M844 Leica M820 Ref 10 713 294 Version 23 Preparation for operation Adjusting optical accessories general information Tube settings Acquiring and adjusting interpupillary distance Interpupillary distance scale Setting wheel Adjust the interpupillary distance to a value between 55 mm and 75 mm Adjust the interpupillary distance using the setting wheel Adjust the interpupillary distance until you see a circular image field This procedure must be done once for each user The acquired value see display can be stored for each user in the User Settings menu under Tube Settings see page 44 Adjusting the tilt Hold the eyepiece tubes of the binocular with both hands Tilt the eyepiece tubes upwards or downwards Setting up eyepieces Determining adjusting diopter settings The individual diopters can be adjusted continuously for each eyepiece from 5 to 5 Only this method will ensure that the image will stay in focus within the entire zoom range parfocal The treatment microscope ensures a high degree of fatigue resistance when the dioptre setting is correct for both eyes Aparfocal adjusted microscope ensures that assistant s view and monitor image will always remain sharp Set individual diopter values for each eyepiece Set to the minimum magnification Place a flat test object with sharp contours under the lens at working distance Focus the microscope
36. ake Selected Brake Al Braces Al Grakis Leica M844 Leica M820 Ref 10 713 294 Version 17 Controls Standard configuration Retina Here is an overview of all possible footswitches and handswitches that you can use to control your Leica M820 and Leica M844 surgical microscopes with the standard configuration Retina Footswitches handswitches and handles can be individually assigned for each user in the configuration menu see page 43 12 function footswitch cross TEMA 16 function footswitch cross a Lb XY Rovers E Rtt XY o i o Poe m Focurs Marchia m Ottorex Light a n i E e SLE i E Handswitch nm XY Reverse 3L gt OCF 1 Pulse rJ Ls Ys XY Y 4 Handles Selected Braker All ir abot Al Drakes 18 Leica M844 Leica M820 Ref 10 713 294 Version Video and photo accessories for Leica M844 A o nM s EX D 9 H Leica 2D pick up 0 assistant s attachment Photo TV dual attachment Photocamera TV attachment m D Leica 2D pick up e Video system for recording 2D video sequences e The camera A is installed between the assistant s attachment and the binocular tube Leica 2D C Mount e Video system for recording 2D video sequences e The camera I is mounted on the TV attachment or zoom video adapter Photo TV dual attachment e For us
37. art values You can set the start values for the zoom focus XY and tilt drives on this screen c Clicking the or key changes the values in increments of one Holding down the key with your finger changes the value in increments of five You can also set the desired value by directly clicking the bars Use Footswitch handswitch assignment Here you can configure individual settings for each user for your footswitch handswitch in the right selection field select the footswitch handswitch you are using You can scroll forwards or backwards in the list by clicking the arrowheads If you click the Cataract or Retina button the selected footswitch handswitch is assigned the default settings gt You can then modify these settings as you like Clicking the Clear All button clears the assignments for all keys Ce If you are creating only one footswitch handswitch configuration for one user we recommend duplicating it to the second footswitch handswitch input by press ing the Duplicate button This ensures that your footswitch handswitch functions the way you want it to regardless of which input it is plugged into Configuring individual keys in the right selection field select the footswitches handswitches you are using You can scroll forwards or backwards in the list by clicking the arrowheads in the left selection field select the function group that contains the desired f
38. ation socket Dane 29 Socket for remote brake release Switch 30 Auxiliary power outlet max output power 100 VA For requirements of use see the Technical data page 67 31 Fuse holder 1 A time lag 10448139 211004003 Caution 1 l EH Connecting unauthorized secondary devices to the IN oowoo s FO N auxiliary power socket can lead to damage to the UVA E AN diia surgical microscope and to the secondary device v s Never connect secondary devices to the auxiliary Grounding reliability can VDO only be achieved when nr AR st power socket unless they conform to the specifi EQUIPMENT is connected to 2x T6 3A 250V cations For requirements of use see the Technical equivalent receptacle marked Hospital only or Hospital Grade d ata A p a g e 67 Leica M844 Leica M820 Ref 10 713 294 Version 11 Controls Control unit Front view 24 Touch panel 32 Brightness contrast adjustment Press once to adjust brightness Press twice to adjust contrast Press three times to save adjustment and exit 33 Decrease value 34 Increase value 35 Video mode active LED 36 Video mode control unit microscope mode switch 3 Control unit mode active LED 24 32 3334 35 36 37 Connections DVI IN OUT IN OUT FOOT HAND ADF Q o0o000000 1 SERVICE EE Q SB VIDEO EXTERN 1 2 2 1 2 LCD Den AA OG 0 oco EN 3 O o 38 39 40 41 42 43 44 45 46 47 38 Service interface 44 External CAN 39
39. djusting the brightness You can adjust the brightness of the active Main Light and the OttoFlex lamp using either the touch panel or the footswitch Using the footswitch Depending on the functions assigned to the footswitch see page 16 you can switch the Main Light and OttoFlex I lamp on and off and increase and decrease their brightness using the foot handswitch Using the touch panel Wan You can change the brightness for the active Main Light and OttoFlex lamp by pressing the or key or directly pressing the corresponding brightness bar Jeica ar fpem Per i aw i y I Lo Pise Lira Mi Cusfles Light Hagai ahii E PL DI x Posi Hayden es m fi Dph i Use Clicking the or key changes the brightness value in increments of one Holding down the mouse button with your finger changes the value in increments of five setting the brightness of a lamp to zero switches it off The Leica M820 and Leica M844 are also equipped with an additional second light source called OttoFlex II The combined output of the two light sources is limited electronically If you cannot increase the brightness of the desired light source first decrease the brightness of the other light source you are then able to increase the brightness of the desired lamp
40. e Remove surface contamination with a disposable cloth paper cloth Storage and transport No special requirements It is recommended to perform the reprocessing of a product immediately following its use Preparation for cleaning Remove the product from the surgical microscope Cleaning manual Equipment running water rinsing agent spirit micro fiber cloth Procedure e Rinse surface contamination off of the product temp 40 C Use some rinsing agent depending upon degree of contamination e f the optics is heavily contaminated e g finger marks fat streaks etc use spirit for cleaning Dry off products except for optical components with a disposable cloth paper cloth Dry off optical surfaces with a micro fiber cloth Cleaning automatic Equipment Cleaning disinfecting device It is not recommended to clean products with optical components in a cleaning disinfecting device In addition optical components must not be cleaned in ultrasonic baths in order to prevent damage Disinfection The alcohol disinfection solution Mikrozid Liquid may be used in accordance with the instructions on the label Please note that optical surfaces must be rinsed thoroughly with fresh drinking water followed by fresh demineralized water after disinfection The products must be dried thoroughly before the subsequent sterilization Maintenance No special requirements Control and functional test Check the snap
41. e 38 You can return the focus motor to the reset position 1 3 up 2 3 down by pressing the Reset key 59 or the Reset Focus button see page 38 C You can also refocus the 0 assistant s attachment using a fine focus adjustment knob 59 Touch panel 32 33 34 Adjusting brightness and contrast Press the brightness contrast 32 key once A bar for adjusting the brightness appears on the screen Change the brightness with the and buttons Press the brightness contrast 32 key again A bar for adjusting the contrast appears on the screen Change the contrast with the and buttons Press the brightness contrast button again 32 to save the values you have set and hide the adjustment bars Changing operating modes gt You can switch your control unit between the video control unit and DVI modes using the video control unit mode switch 36 DThe active mode is indicated by an LED 35 or 37 If video mode is active the video signal received at the video input 41 is displayed on the monitor If control unit mode is active the touch panel displays a menu interface in which the microscope can be controlled gt If the DVI mode is active the DVI signal e g Leica MDRS4 video system is displayed and both LEDs light up Wan While video mode Is active any warning that may occur Is indicated by an audible signal This audio warning signal can be deactivated by your service partn
42. e controlled via buttons on the remote control unit Move telescopic arm to the desired height Up key lift telescopic arm gt Down key sink telescopic arm Up Down Under permanent load conditions the telescope may not be operated for more than 1 minute in a 10 minute period After 2 minutes of uninterrupted operation the built in temperature switch deactivates the motor of the Leica CT40 ceiling mount Preparing the stand F19 Balancing the swing arm AN Warning 6 Risk of injury through surgical microscope moving down Never balance or re equip the instrument over the field of operation After re equipping always rebalance the microscope on the swing arm Hold the microscope firmly Releasing the swing arm gt See whether or not the microscope drifts Microscope drifts downwards gt Turn rotary knob clockwise Microscope drifts upwards gt Turn rotary knob counterclockwise Retaining hook Brake knob T Rotary 7 TIL Retaining pin Brake knob n t Adjust the articulation brakes All joints on the microscope and stand are equipped with artic ulation brakes with resistance that adjusts to make the joint easier or more difficult to move Make the joint easier to move Loosen the black brake knob Make the joint more difficult to move gt Tighten the black brake knob Locking the swing arm N Warning 7 Ri
43. e microscope on the swing arm Do not release the brakes when the instrument is in an unbalanced state Before re equipping during the operation first swing the microscope away from the operating field Take care that the articulation brakes are tightened and the swing arm is blocked before you mount accessories to your Leica M820 F19 see page 34 Fitting objectives Screw the objectives onto the microscope right hand threading Fitting the beam splitter Lo Unscrew the clamping screw to the stop Insert the beam splitter into the dovetail ring and turn slightly to the side until the positioning screw engages the guide Preparation for operation Fitting the attachment for second observer Tube Knurled ring e e install the attachment for second observer to the beam splitter Align the attachment for second observer as required Fit the tube and set up the image with the knurled ring Fitting the tube Release the clamping screw on the beam splitter and attachment for second observer and remove the protective COVer Carefully insert the tube and tighten the clamping screw Fitting eyepieces Affix the eyepieces with the fixing rings in the tubes Mounting beam splitter rotatable e Remove the clamping screw 1 e Mount the grub screw 1 e Place beam splitter rotatable into the dovetail ring from above e Tighten the grub screw 1 Leic
44. e total e Step 0 means basic setting of the user e 1 x means 1 of x steps In the Main or Speed menu deactivate the Rec Cycle button Activate the key of your footswitch handswitch to which the StepCycle function is assigned by clicking it gt You run through a continuous loop of the stored StepCycle settings If you load a new user or trigger an Auto Reset you are returned to Step 0 Auto Reset If you move the swing arm up to its end position after the operation you trigger the Auto Reset function e All of the motors zoom focus and XY move to their reset position e The tilt motor is not moved e The current user settings are reloaded e The illumination is switched off If you move your Leica M844 or Leica M820 back down over the OP field the illumination switches back on and your Leica M844 or Leica M820 is ready to use immediately Wan This function can be deactivated by your Leica service technician The Maintenance menu Maintenance Hour meter for the bulbs Lamp History This screen displays the operating hours for each of the following bulbs Main 1 Main 2 and Otto Flex Light gt Whenever you replace a bulb reset the bulb s hour meter to 0 by double clicking the Reset button Check Switches On this screen you can test the footswitches handswitches and handles you are using TERES DHL EEE Et la TELTETTITI In the
45. ection field You can scroll forwards or backwards in the list by clicking the arrowheads n the left selection field select the function group that contains the desired function You can scroll forwards or backwards in the list by clicking the arrowheads Select the desired function gt Click the caption of the desired key to assign the selected function to it Forthe handle the additional functiongroup with the functions All Brakes releases all brakes and Selected Brakes releases all brakes except the up down brake are also available Not available with Leica M820 F19 and Leica M844 F19 Ifyou would prefer a different brake assignment please contact your service technician Tube Settings On this page you can store the diopter values and interpupillary distance for each user You can also activate or deactivate the Depth Enhancer as a basic setting for each user 44 Leica M844 Leica M820 Ref 10 713 294 Version Use StepCycle TM On this screen you can enable or disable the desired StepCycle StepCycle parameters for the individual users Using this function you can save the following parameters for various frequently recurring phases cycles of the operation Main light brightness OttoFlex brightness Magnification Focus Depth Enhancer OCF1 AD F Caution 7 A Risk of injury Look especially after the required safety distance if you use the StepCycle function
46. ectromagnetic environment specified below The customer or the user of the Leica M820 and Leica M844 surgical microscopes should assure that they are used in such an environment Immunity test Electrostatic discharge ESD IEC 61000 4 2 Electrical fast transient burst IEC 61000 4 4 Surges IEC 61000 4 5 Voltage dips short interruptions and voltage variations on power supply lines IEC 61000 4 11 Power frequency 50 60 Hz magnetic field IEC 61000 4 8 52 IEC 60601 test level 6 KV contact 8 kV air 2 KV for power supply lines 1 KV for input output lines 1KV differential mode 2kV common mode lt 5 UT gt 95 dip in UT for period 40 UT 60 dip in UT for 5 cycles 70 UT 30 dip in UT for 25 cycles lt 5 UT gt 95 dip in UT for 5 sec Compliance level 6KV contact 8 kV air 2 KV for power supply lines 1 KV for input output lines 1KV differential mode 2kV common mode lt 5 UT gt 95 dip in UT for period 40 UT 60 dip in UT for 5 cycles 70 UT 30 dip in UT for 25 cycles lt 5 UT gt 95 dip in UT for 5 sec Not applicable Electromagnetic environment guidance Floors should be of wood concrete or ceramic tile If floors are covered with synthetic material the relative humidity should be at least 3096 Mains power quality should be that of a typical commercial or hospital
47. ent Symbol for fuses Leica M844 Leica M820 Ref 10 713 294 Version 57 Care and maintenance Maintenance instructions Put a dust cover over the instrument during breaks in work e Keep accessories in a dust free place when not in use e Remove dust with a pneumatic rubber pump and a soft brush Clean the objectives and eyepieces with special optics cleaning cloths and pure alcohol Protect the surgical microscope from damp vapors acids alkalis and corrosive substances Do not keep chemicals near the instrument Protect the surgical microscope from improper handling Install other device sockets or unscrew optical systems and mechanical parts only when explicitly instructed to do so in this user manual Protect the surgical microscope from oil and grease Never oil or grease the guide surfaces or mechanical parts e Remove coarse debris with a moistened disposable cloth For disinfecting the surgical microscope use compounds from the surface disinfecting group based on the following active ingredients aldehydes alcohols quaternary ammonia compounds LE Due to potential damage to the materials never use substances based on halogen splitting compounds strong organic acids oxygen splitting compounds Follow the disinfectant manufacturer s instructions E Ce It is recommended to conclude a service contract with Leica Service Cleaning the touch panel Before cleaning the touch panel
48. environment Mains power quality should be that of a typical commercial or hospital environment Mains power quality should be that of a typical commercial or hospital environment If the user of the Leica M820 and Leica M844 surgical microscopes requires continued operation during power mains interruptions it is recommended that the Leica M820 and Leica M844 surgical microscopes be powered from an uninterruptible power supply or a battery U is the a c mains voltage prior to application of the test level Leica M844 Leica M820 Ref 10 713 294 Version Guidance and manufacturer s declaration Table 204 from EN 60601 1 2 2001 Guidance and manufacturer s declaration electromagnetic immunity The Leica M820 and Leica M844 surgical microscopes are intended for use in the electromagnetic environment specified below The customer or the user of the Leica M820 and Leica M844 surgical microscopes should assure that it is used in such an environment Immunity test IEC 60601 test level Compliance level Electromagnetic environment guidance Portable and mobile HF communications should be used no closer to any part of the Leica M820 and Leica M844 surgical microscopes including cables than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter Recommended separation distance Conducted HF 3 Ver d 24VP equipment 150 kHz to 80 MHz for 150 kHz to 80 MHz
49. er if desired Menu structure 711 72 17314 8 15 Pha Light Ms Cafe Ug agi ater x I T nx Low TRE E y y v2 DE a 71 76 71 Operational mode light magnification settings 72 Operational mode drive settings 13 Configuration menu 74 Static menu bar does not change 15 Displays help texts for certain topics 76 Dynamic button bar 77 Display area with status bar 78 Warning messages 40 Leica M844 Leica M820 Ref 10 713 294 Version 40 Switching the microscope on Warning 13 Motors return to their home positions Before switching on your Leica M820 Leica M844 ensure that the travel paths of the XY zoom and focus motors are free of obstructions The tilt motor Is not moved Switch on your microscope at the power switch of the horizontal arm gt As soon as the main illuminator lights up your microscope is ready to use LE After the surgical microscope is switched on the settings of the last active user are loaded If the power supply of your microscope is accidentally interrupted for a short period 20 5 seconds the microscope carries out a fast startup Ce e All motors are in the same position as before e All illumination settings remain the same e XY reverse status Is restored where applicable e f the StepCycle function has been selected it is in step 0 see page 45 e The fast start up function can be disabled in the Service me
50. erile controls Carefully unpack the sterile drape and pull it over the Leica M820 and Leica M844 surgical microscopes up to the swing arm Clamp the protective glass optional onto the objective Do not attach the sterile drape too tightly with the provided ribbons It must still be easy to operate the instrument E Check the ease of movement of the instrument E Follow the instructions provided by the manufacturer of the sterile drape E Ensure that you pull the disposable drape only to the end of the swing arm and fasten it there Do not cover the horizontal arm Leica M844 Leica M820 Ref 10 713 294 Version l 37 Use Positioning the microscope Joystick f r INI LAETI 7 Handles 56 Rotary knob for tilt head 59 XY reset Coarse positioning Hold the microscope by both handles Turn one handle to release the brakes All Brakes not available with Leica M820 F19 and M844 F19 Position the microscope and release the handle Wan The brakes can also be released using the remote brake release see page 34 Wan Also refer to the Release brakes chapter on page 33 Warning 11 A Risk of injury from downward movement of surgical microscope Do not use the handle or remote brake release when the instrument is in an unbalanced state
51. ew them in all the way If necessary Fault remedy Carry out the dioptric correction by following the instructions exactly see page 24 Fault remedy Push and turn the zoom rotary knob to manually adjust the zoom see page 13 Fault remedy Clamp the objective cover of the sterile drape to the objective with the cover tilted slightly forwards Fault remedy Move the jammed cable to another position Fault remedy Release the transport lock see page 35 Fault remedy Contact your Leica representative Leica M844 Leica M820 Ref 10 713 294 Version 63 What to do if Two in One control unit Fault There is no picture in the display Cause 1 The touch panel is in video mode but is not receiving a video signal Cause 2 Acable connection has loosened Cause 3 The display is defective Error messages on the control unit Fault e Check Main Lamp 1 e Check Main Lamp 2 e Check Slitlamp Fault Check Ottoflex Fault e Compact Stand Brake Controller not present e Zoom Lamp Controller not present e Focus Tilt Controller not present e XY Controller not present e Microscope Device Controller not present Command Interface e Microscope Device Controller not present Config Interface F40 stand Fault The surgical microscope does not move or requires undue force Cause 1 A cable is jammed Cause 2 The transport lock has not been released Cause
52. g interface Foot 637 x 637 mm Brakes min height in rest position 1949 mm Extension 1492 mm max 046 mm via gas spring Axis 1 near column 170 Load Axis 2 in the middle 150 170 Axis 3 over XY unit 270 Range Travel range Balancing Turning range owing arm 4x82 5 mm 174 kg Column 20 kg Approx 270 kg with max load 4 mechanical articulation brakes locking lever for vertical movement Swing arm Max 11 5 kg from microscope dovetail ring Foot 637 x 637 mm min height in rest position 1949 mm Extension 1305 mm max 652 mm via gas spring Axis 1 near column 360 Axis 2 in the middle 170 Axis 3 over XY unit 270 Leica M844 Leica M820 Ref 10 713 294 Version Max distance from concrete ceil ing to intermediate ceiling 1200 mm Attachment to concrete shell construction ceiling 470 mm hole circle 6 x M24 FHA 24 0 50B or FHA 24 0 150B Ceiling mount Max 90 kg at max tube length Normally approx 85 kg Swing arm 44 kg Swing arm Four electromagnetic brakes operated by turning the handles one stop lever for vertical movement Ceiling mount Max 85 kg Swing arm Max 12 2 kg from microscope dovetail ring interface Ceiling mount extension 957 mm owing arm extension 1492 mm Ceiling mount 300 mm Swing arm 846 mm via gas spring Ceiling mount 330 Axis 1 ceiling mount x90 Axis 2 in the middle 135 Axis 3 over X
53. ger of fatal electric shock Operate the system only with all equipment in its proper position all covers fitted doors closed Leica M844 Leica M820 Ref 10 713 294 Version Preparation for operation 21 Preparation for operation Fitting optical accessories for Leica M844 Warning 3 A Risk of injury from downward movement of surgical microscope Complete all preparations and adjustments to the stand before the operation Never balance or re equip the instrument over the field of operation Before re equipping always lock the swing arm gt After re equipping always rebalance the microscope on the swing arm Do not release the brakes when the instrument is in an unbalanced state Before re equipping during the operation first swing the microscope away from the operating field Take care that the articulation brakes are tightened and the swing arm Is blocked before you mount accessories to your Leica M844 see page 34 Fitting objectives Screw the objectives onto the microscope right hand threading Fitting the 0 assistant s attachment x The 0 assistants attachment must be directly Clamping screw attached to the optics carrier Unscrew the clamping screw as far as necessary using a screwdriver Insert the 0 assistants attachment into the dovetail ring While holding the 0 assistant s attachment in place tighten the clamping screw
54. gs need to be altered during the operation first swing the microscope away from the operating field If the microscope needs to be re equipped do this before the operation Before re equipping always lock the swing arm Do not use the handle or remote brake release when the instrument is in an unbalanced state Forwards Jia E Backwards Unless they are individually configured for the current user the brakes are released by turning the handles as follows Turn backwards and hold selected brakes are released gt Turn forwards and hold all brakes are released Wan The handles can be individually assigned up to 4 functions for each user in the User Settings menu The All Brakes function must be selected at least once see page 44 Leica M844 Leica M820 Ref 10 713 294 Version 33 Preparation for operation x The brakes can also be released using a remote brake release Press and hold the remote brake release button gt All brakes on the stand are now released Raising and lowering the C40 ceiling mount The C40 ceiling mount can be raised and lowered electrically These functions can be controlled via the remote control unit gt Up key raise stand gt Down key lower stand B Ceiling mount C40 remote control Raising and lowering the CT40 ceiling mount The CT40 ceiling mount can be lifted and sinked electrically These functions can b
55. he handles Turn one handle to release the brakes All Brakes Check whether the microscope drifts up or down Microscope drifts downwards Turn rotary knob clockwise Microscope drifts upwards Turn rotary knob counterclockwise Locking the swing arm N Warning 7 Risk of injury through surgical microscope moving down Always lock the swing arm when transporting the microscope when changing equipment Caution 2 There is a risk of damage to the surgical microscope from uncontrolled tilting Firmly hold the handles before triggering the All Brakes function AN Pull the stop lever and bring it into a vertical position Hold and turn one or both handles to release the brakes All Brakes Move the swing arm up and down until the transport lock engages D The swing arm is now locked Preparation for operation Releasing the swing arm Caution 2 There is a risk of damage to the surgical microscope from uncontrolled tilting Firmly hold the handles before triggering the All Brakes function Grip and turn one handle to release the brakes At the same time pull the stop lever and bring it into a horizontal position The swing arm is now released LE If necessary rebalance the swing arm Releasing the brakes Warning 8 A Risk of injury through surgical microscope moving down Complete all preparations and adjustments to the stand before the operation If settin
56. ic shock The surgical microscope may be connected to a grounded socket only 36 Leica M844 Leica M820 Ref 10 713 294 Version Sterile controls The controls indicated in the diagram can be provided with steam sterilizable handles or covers Use the sterilizable handles also when you use sterile disposable drapes the controls will be easier to grasp 56 34 D 10 eod E 4 Oe n ES P l MN 7 Handles 54 Rotary knob for focus fine adjustment 56 Rotary knob for tilt head 60 Manual zoom emergency drive 63 OttoFlex II iris diaphragm 70 Interpupillary distance setting wheel Ce Also refer to the Sterilization table on page 61 Before the operation Press the sterile controls into position so that they engage The rotary knobs 54 56 60 63 and 70 are identical Wan Packaging the footswitch in a plastic bag protects it against dirt Preparation for operation Sterile drape for stand Caution 5 AN Risk of infection Leave sufficient space around the stand to ensure that the sterile drape does not come into contact with non sterile components You can also use an optional sterile disposable drape Release the All Brakes functions not available with Leica M820 F19 and M844 F19 using the handle and extend the swing arm Put on sterile gloves Attach all the st
57. ies need to be removed in order to change the assistant side Level up the eyepiece tubes The assistant tube can be rotated 15 to the left or right Push lever down Rotate the tube in the desired direction until it engages at one of the markings Lever for rotating the tube Documentation port The documentation port of the 0 assistant s attachment has a diaphragm for optimizing the depth of field Rotary ring Closed Open gt You can adjust the diaphragm by turning the rotary ring Preparation for operation If you are working at a large magnification you can increase the depth of field of your video or photo by reducing the diaphragm opening Closing the diaphragm can affect the red reflex in the video image Cm Focusing the 0 assistants attachment Rotate the fine focus button to precisely focus the image seen by the assistant Fine focusing knob Leica M844 Leica M820 Ref 10 713 294 Version 25 Preparation for operation Fitting documentation accessories Fitting the Leica 2D gt See Leica 2D User Manual 10708979 Fitting the photo TV dual attachment Fit dual attachment on the assistant side of the 0 assistant s attachment Leica M844 or on the beam splitter Leica M820 Equip the video camera with the TV objective and insert into the dual attachment Tighten the clamping screw DEquip the photo camera with the camera adapter Screw the
58. ing a video camera with C mount at the same time as an SLR camera Complete with adapters e Video camera engageable in 45 increments e Video outlet with incorporated brightness adjustment 3 positions Controls S eo m c n G F Zoom video adapter G Phototube H Video camera such as the Leica D2D V3 Leica 2D C Mount TV attachment e For commercially available video cameras with C mount complete with adapter e The TV tube attachment E is installed at the video port of the 0 assistant s attachment e Video camera can be latched in 90 increments Zoom video adapter e For commercially available video cameras with C mount complete with adapter e The zoom video adapter F is installed at the video port of the 0 assistant s attachment e Zoom and fine focus function for Leica zoom video adapter Phototube e Complete with adapter for SLR cameras e Adapter f 250 mm forlarge fields of view and short exposure times e Adapterf 350mm for high magnifications e The phototube G is installed at the video port of the 0 assistant s attachment Leica M844 Leica M820 Ref 10 713 294 Version 19 Controls Video and photo accessories for Leica M820 A B C Leica 2D pick up Beam splitter 50 50 or 70 30 Photo TV dual attachment Photocamera TV attachment mooo Leica 2D pick up e
59. interlock of the slit lamp latches securely e Only qualified personnel is allowed to handle the slit lamp e When handling the slit lamp take care not to crush any fingers Mounting the extension plate Lock the swing arm Fasten the extension plate 2 to the optics carrier with 4 screws 3 Fastening the slit lamp Make sure that the interlock latches securely DLoosen the clamp screw 1 and slide the slit lamp 5 into the guiding 6 Fasten the clamp screw 1 Power supply and control signals are connected to the slit lamp via the quick release fastener in the guiding 6 The slit lamp may only be used with an objective 10445937 with a working distance WD of 200 mm Insert the 3 pin plug of the dual cable into the external supply socket 4 on the optics carrier Insert the 5 pin plug of the dual cable into the OCF socket 50 on the optics carrier see page 13 Make sure that there always is a spare lamp with 50 W on hand Warning 4 A Danger of burns he lamp housing and cover may become hot during use 28 Leica M844 Leica M820 Ref 10 713 294 Version Adjusting the slit lamp Move the slit lamp into middle position using the footswitch 4 Assign the functions OCF2 pulse and OCF3 pulse on the hand switch or foot switch used so that the slit lamp can be moved to the right OCF3 or left O
60. ion f 100 on the zoom video adapter Focus the monitor image on the zoom video adapter Set the desired image magnification at the zoom video adapter Fitting the phototube Adjusting the magnification F i MULLER Focusing knob DFasten the phototube to the video port of the 0 assistant s attachment Leica M844 or to the beam splitter Leica M820 Secure the camera adapter to the SLR camera Connect the f 250 mm or f 350 mm adapter to the camera adapter Using the dial the brightness of the video can be adjust Secure the camera complete with adapter in the phototube Tighten the clamping screw Camera a ou p Camera adapter S Adapter Clamping screw Phototube 26 Leica M844 Leica M820 Ref 10 713 294 Version Preparation for operation selecting documentation accessories Zoom video adapter TV PhotoTV dual TV PhotoTV dual Zoom video TV attachment attachment attachment attachment Adapter attachment 35mm 55mm 60mm 70mm 05mm 100mm 107mm Photo TV dual attachment 250 mm 350 mm Digital Photo C Field of view Monitor image Leica M844 Leica M820 Ref 10 713 294 Version 2 Preparation for operation Mounting the slit lamp General safety information when handling the slit lamp e When installing and using the slit lamp make sure not to pinch any cables e When installing make sure that the
61. ke when you are not moving the system Caution 4 Danger of collision The surgical microscope can collide with surrounding components the ceiling or lamps Check the danger area before moving the swing arm Carefully move the ceiling mount upwards and observe ceiling and lamps Caution 5 Risk of infection Leave sufficient space around the stand to ensure that the sterile drape does not come into contact with non sterile components Caution 6 Destruction of the zoom motor Use the manual adjustment of the zoom motor only if the zoom motor is defective Caution 7 Risk of injury Look especially after the required safety distance if you use the StepCycle function together with accessories from other manufacturers that reduces the working distance to less than 140 mm non contact wide angle observation systems as focus together with StepCycle a semiautomated function Caution 8 Damage of the touch panel DOperate the touch panel using your fingers only Never use hard sharp or pointed objects made out of wood metal or plastic Caution 9 Damage of the touch panel Never clean the touch panel using cleaners that contain abrasive substances These substances can scratch the surface and cause it to be become dull Leica M844 Leica M820 Ref 10 713 294 Version Guidance and manufacturer s declaration Manufacturer s declaration of electromagnetic compatibility EMC e
62. lead to hazardous situations e Add accessories and balance the stand before the operation and never over the field of operation e Never put your hand between the gas spring and the swing arm it could become trapped when the swing arm is moved e Do not put your fingers between the microscope and the focusing drive they could get crushed Floor stand e When displacing the stand push it Do not pull it Feet in lightweight shoes could become trapped beneath the casing of the base e The footbrakes must remain engaged throughout the operation Electrical connections The control unit may be opened only by a Leica approved service technician Accessories Only the following accessories may be used with the Leica M820 and Leica M844 surgical microscopes e The Leica accessories described in this user manual e Other accessories provided that these have been expressly approved by Leica as being technically safe in this context 48 Leica M844 Leica M820 Ref 10 713 294 Version Dangers of use Warning 1 Motors return to their home positions Before switching on the microscope ensure that the travel paths of the X and Y axes and the zoom motor are free of obstructions Check the Main Light 1 2 and OttoFlex II lamps Replace defective bulbs before the operation begins Test all handswitch and footswitch functions Check the function of the brakes using the handles and remote brake release see page 33
63. leaders 9 Life Science Division The Leica Microsystems Life Science Division supports the imaging needs of the scientific community with advanced innovation and technical expertise for the visualization measurement and analysis of microstructures Our strong focus on understanding scientific applications puts Leica Microsystems customers at the leading edge of science ndustry Division The Leica Microsystems Industry Division s focus is to support customers pursuit of the highest quality end result Leica Microsystems provide the best and most innovative imaging systems to see measure and analyze the micro structures in routine and research industrial applications materials science quality control forensic science inves tigation and educational applications Biosystems Division The Leica Microsystems Biosystems Division brings his topathology labs and researchers the highest quality most comprehensive product range From patient to pa thologist the range includes the ideal product for each histology step and high productivity workflow solutions for the entire lab With complete histology systems fea turing innovative automation and Novocastra reagents Leica Microsystems creates better patient care through rapid turnaround diagnostic confidence and close cus tomer collaboration e Surgical Division The Leica Microsystems Surgical Division s focus is to partner with and support surgeons and their care
64. microscope can move without warning Always lock the footbrake when you are not moving the system Transport position Whenever you transport your Leica M820 F19 and Leica M844 F19 first bring it into transport position Unplug and secure the power cable Pull the retaining pin and engage the retaining hook Release the articulation brakes Bring swing arm into transport position Articulation brakes Retaining hook Handle EE Tighten the articulation brakes gt urn the control unit towards the XY unit Place footswitch in the carrier Release the foot brakes by depressing the foot lever Move the Leica M820 F19 and Leica M844 F19 by the handle Leica M844 Leica M820 Ref 10 713 294 Version 35 Preparation for operation Parked position Bring the microscope into rest position after use F40 and F19 floor stands After bringing the microscope into transport position push it to its storage location Firmly depress the footbrake Protect your Leica M820 and Leica M844 by covering it with Its dust cover C40 ceiling mount Caution 4 A Danger of collision The surgical microscope can collide with surrounding components the ceiling or lamps Check the danger area before moving the swing arm Carefully move the ceiling mount upwards and observe ceiling and lamps Swing the microscope aside Remove sterile components Adjust the swing a
65. mount e Visual inspection of all cables e Electronically safety test e Check and test of the lift system in particular all bearings for free movement e Lubrication of the spindle EP Only lubricate the spindle with STABURAGS NBU 12 300 KP Kliiber Lubrication M nchen KG Deutschland No other lubricants are permissible In order to ensure the reliability of the entire system we recommend a frequent maintenance already after warranty end carried out by our specialists Please contact your local Leica representative service for an individual offer Only use original spare parts for servicing 58 Leica M844 Leica M820 Ref 10 713 294 Version Changing fuses Fuses Remote Control Switch AN output 100 VA T1A 250V Grounding reliability can A only be achieved when EQUIMENT is connected to equivalent receptacle marked Hospital only or Hospital Grade Fuse holder gt Pull out the fuse holder on the underside of the horizontal arm Remove the two fuses from the holder and replace them 77g Use only 6 3 A time lag fuses Warning 14 A Danger of fatal electric shock the power socket Changing bulbs Warning 15 Halogen lamps become very hot Always switch the main switch off before changing a bulb Allow bulbs to cool for 20 minutes before changing them burn hazard Main Light Ce Use only
66. ng 5 Danger of eye injuries The light source of the slit lamp might be too bright for the patient Dim the slit lamp before switching it on Slowly increase the brightness until the image is illuminated optimally for the operating doctor gt To switch the slit lamp on or off use the OttoFlex ON OFF function on the hand switch or foot switch gt To adjust brightness press the or button or directly press the brightness bar of the slit lamp Wan Clicking the or button changes the brightness value in increments of 1 Holding the mouse button down changes the value in increments of 5 Brightness of the slit lamp may also be changed by using a connected hand switch or foot switch with the OttoFlex function Moving the slit lamp Assign the functions OCF2 pulse and OCF3 pulse on the hand switch or foot switch used so that the slit lamp can be moved to the right OCF3 or left OCF2 using these two keys or Move the slit lamp to the right or left with the nurse switch 1 Adjusting the slit width The width of the slit can be adjusted with the lever 2 on the lamp housing of the slit lamp The slit width can be adjusted between 0 01 bis 14 mm The slit height is 14 mm 30 Leica M844 Leica M820 Ref 10 713 294 Version Connecting the BIOM to the slit lamp
67. nt system certificate for the international standards ISO 9001 2000 ISO 13485 2003 and ISO 14001 2004 relating to quality management quality assurance and environmental management Limitations of use The Leica M820 F40 Leica M820 C40 Leica M820 CT40 Leica M820 F19 Leica M844 F40 Leica M844 F19 and Leica M844 CT40 surgical microscopes may be used only in closed rooms and must be placed on a solid floor or attached to a strong ceiling or wall For the Leica M820 F40 and Leica M844 F40 drift effects must be taken into account on floors which slant gt 0 3 Leica M844 Leica M820 Ref 10 713 294 Version 69 Technical data Dimensioning drawing mm for Leica M820 F40 and Leica M844 F40 min 1949 70 Leica M844 Leica M820 Ref 10 713 294 Version Technical data Dimensioning drawing mm for Leica M820 and Leica M844 C40 Axes of rotation Leica M844 Leica M820 Ref 10 713 294 Version 71 Technical data Dimensioning drawing mm for Leica M820 CT40 and Leica M844 CT40 Axes of rotation 72 Leica M844 Leica M820 Ref 10 713 294 Version Dimensioning drawing mm for Leica M820 F19 and Leica M844 F19 Leica M844 Leica M820 Ref 10 713 294 Version Technical data 73 With the user for the user Leica Microsystems Leica Microsystems operates globally in four divisions where we rank with the market
68. nu In operational mode the status bar displays the current user and specifies the current location in the menu at all times C Selecting users In the Main and Speed menu screens the four buttons Cataract Retina Favorite and User List appear in the dynamic button bar at all times The users Cataract and Retina are default users provided by Leica You can adjust the settings of these default users as desired see page 42 You can store a frequently used profile under the user Favorite see page 42 4 You can click the Show Settings button at any time to see an overview of the user settings of the current user Use You can click the User List button to open a two page user list from which you can select from up to 30 saved users Click the 1 15 or 16 30 button to switch between pages M pu T Dr Reinas 12 3 Ur hea DE di 4 Oe Cataract MEM E pn 15 pi m i hire Qm Meee Retina Carl When the user list is open it can be edited at any time see page 42 When you select a user an informational screen for that user appears that specifies the tube settings that are needed as well as the current footswitch handswitch assignments Press Continue Wan Before starting every operation make sure your personal user settings are selected and make yourself familiarize with your footswitch configuration
69. of pa tients with the highest quality most innovative surgical microscope technology today and into the future www leica microsystems com The statement by Ernst Leitz in 1907 with the user for the user describes the fruitful collaboration with end users and driving force of innovation at Leica Microsystems We have developed five brand values to live up to this tradition Pioneering High end Quality Team Spirit Dedication to Science and Continuous Improvement For us living up to these values means Living up to Life Active worldwide Australia North Ryde Tel 61 2 8870 3500 Fax 61 2 9878 1055 Austria Vienna Tel 43 1 486 80 500 Fax 43 1 486 80 50 30 Belgium Groot Bijgaarden Tel 32 2 790 98 50 Fax 32 2 790 98 68 Canada Richmond Hill Ontario Tel 1 905 762 2000 Fax 1 905 762 8937 Denmark Herlev Tel 45 4454 0101 Fax 45 4454 0111 France Rueil Malmaison Tel 33 1 47 328585 Fax 33 1 47 32 85 86 Germany Wetzlar Tel 49 64 41 29 40 00 Fax 49 64 41 29 41 55 Italy Milan Tel 39 02 574 861 Fax 39 02 574 03392 Japan Tokyo Tel 81 3 5421 2800 Fax 81 3 5421 2896 Korea Seoul Tel 82 2 514 65 43 Fax 82 2 514 65 48 Netherlands Rijswijk Tel 31 70 4132 100 Fax 31 70 4132 109 People s Rep of China Hong Kong Tel 852 2564 6699 Fax 852 2564 4163 Portugal Lisbon Tel 351 21 3889112 Fax 351 21 385 4668 Singapore Tel 65 6779 7823 Fax 65 6773 0628 Spain Barcelona Tel 34 93 494 95 30 Fax 34 93 494 95 32
70. ological instrument using a bright visible light source within the previous 24 hours This applies especially if the eye was examined by retina photography Decisions about brightness must be made case by case In any case the surgeon has to make a risk benefit analysis concerning the applicable brightness Despite any effort to minimize the risk of damage to the retina by the surgical microscope injuries still might occur Photochemical damage to the retina is one possible complication due to the necessity of using bright light to visual Ize eye structures during difficult ophthamologic processes Leica M844 Leica M820 Ref 10 713 294 Version 31 Preparation for operation Wide angle observation system such as Oculus Fit the SDI between the 0 assistant s attachment and tube as pictured Leica M844 only Insert the seven pin plug of the SDI control cable 10448163 into the OCF socket on the optics carrier Insert the five pin plug of the SDI power supply cable 10448162 into the CAN socket on the optics carrier Screw the BIOM adapter into the underside of the optics carrier DLoosen the clamping screw slide the BIOM into the guide and retighten the clamping screw Wan You can control the wide angle observation system 32 using your Leica handswitch or footswitch by assigning the functions OCF1 OCF2 and OCF3 Inverter on off OCF1 pulse BIOM focus up OCF2 pulse BIOM focus down OCFS
71. on 39 Use Adjusting the magnification zoom You can adjust the magnification using the footswitch handswitch or the Magnification adjustment bar in the main menu of the control unit Wan Clicking the or key changes the magnification value in increments of one Holding down the mouse button with your finger changes the value in increments of five You can change the speed at which the zoom motor moves in the Speed menu see page 38 You can return the zoom motor to the magnification setting saved for the current user using the Reset Magnification button see page 38 Depth Enhancer You can activate a double iris diaphragm to increase the depth of field using the Depth Enhancer button In the User Settings menu you can assign a default status of the double iris diaphragm for each user or assign it as a footswitch function under Tube Settings Manually adjusting the magnification zoom Caution 6 Destruction of the zoom motor Use the manual adjustment of the zoom motor only if the zoom motor is defective If the zoom motor fails the zoom can be manually adjusted using the rotary knob 60 on the optics carrier Press the rotary knob Set the desired magnification by turning the knob Adjusting the focus You can focus the microscope using the focus keys on the footswitch E You can change the speed at which the focus motor moves in the Speed menu see pag
72. on behavior of rotary knobs and handles Packaging Separate A standard PE bag may be used The bag must be large enough for the product so that the closure is not under tension Sterilization See Table 1 Storage No special requirements Additional information None Contact information of manufacturer Address of local agent Leica Microsystems Schweiz AG verified that the aforemen tioned instructions for the preparation of a product are suitable for its reuse The processing person is responsible for repro cessing with the equipment materials and personnel and for achieving the desired results in the reprocessing installation In general this requires validations and routine monitoring of the process Every deviation from the supplied instructions should also be examined carefully by the processing person to determine effectiveness and possible detrimental consequences 60 Leica M844 Leica M820 Ref 10 713 294 Version Table Sterilization Item no 10180591 10428328 10384656 10443792 10429792 10445368 10445289 10446058 10446469 10446467 10443714 10445341 10445549 10445340 Designation Clip on handle Rotary knob binoc tube T Rotary knob transparent Lever extension Capping piece slit lamp Cover binoc tube 0 180 Handswitch holder Protective glass multifoc obj Objective protective glass Leica M680 Objective protective glass Leica M8xx Rotary ring objective 0 Handle for
73. ons Electromagnetic propagation is affected by absorption and reflection from structures objects and people Warning message Using accessories or cables other than those listed here or those permitted by the manufacturer of the Leica M820 and Leica M844 surgical microscopes may result in increased electromagnetic emissions or decreased immunity Warning message The Leica M820 and Leica M844 surgical microscopes may not be used while positioned directly next to other instruments If itis necessary to operate them in the vicinity of other instruments the microscopes should be monitored to ensure that they func tion properly in this arrangement 54 Leica M844 Leica M820 Ref 10 713 294 Version Safety notes Signs and labels Floor stand F40 tl Z A fH rp siticn m Tr yt p sib n Pip jn pour be trangp z TT Po li transport 11 aal Pasics n para el raspii IET Kupetusasento Lm Erg oen i d i lranspontsolrg in im spo jn lage Posic o de transporte r e j Tran spon E kiok f e s Forycja da tansportu wir pL hie Horizontal arm and swing arm F19 r mr ACC Me N Caution Follow the User Manual Danger sign for contusions AN Danger sign for hot surface mim peni ljal Y fy TA Tl Gey olga iiam ey ie n Ford prm ECL AEN p vemm EN gala remp rrt Hp or Vars AY Symbol for alternating current fh La babens de La poste Bla Mere ur ee
74. ouch panel Maintenance Changing fuses Changing bulbs Notes on reprocessing of sterilizable products Instructions Table Sterilization What to do if General Microscope Control unit Error messages on the control unit F40 stand C40 ceiling mount CT40 ceiling mount F19 stand TV photography Technical data Microscope Lamps Accessories Electrical data Auxiliary power socket Optical data Stands ceiling mounts Ambient conditions standards Limitations of use Dimensioning drawing mm Leica M844 F40 and Leica M820 F40 Dimensioning drawing mm Leica M844 C40 and Leica M820 C40 Dimensioning drawing mm for Leica M844 CT40 and Leica M820 CT40 Dimensioning drawing mm for Leica M844 F19 and Leica M820 F19 Leica M844 Leica M820 Ref 10 713 294 Version Page 91 59 58 58 DB 59 59 60 60 61 62 62 64 64 64 64 65 65 65 66 66 66 67 67 67 68 69 69 69 70 71 72 73 A gn Product identification In addition to instructions for use this user manual also provides important safety notes see the chapter entitled Safety notes Read the user manual carefully and thoroughly before placing the product in operation The model code and serial number of your product are provided on the nameplate found on the underside of the swing arm Write this data into your user manual and always refer to it when you contact us or the service workshop regarding any
75. precision formed original Leica 12 V 50 W halogen bulbs Never touch the glass bulb of halogen lamps with your bare fingers UUUUUUUUUUUUUU c Lamp HIC 1E COVer N opener C OTTOFLEX MY A M2 Bulb socket Bulb slider Before replacing the fuse unplug the power cable from Care and maintenance Open the cover on the rear of the optics carrier by sliding the lamp cover opener to the right To replace lamp M1 the bulb slider must be all the way to the left To replace lamp M2 the bulb slider must be all the way to the right Pull on the tab to remove the bulb socket complete with bulb Insert the new bulb socket and bulb OttoFlex Il Use only precision formed original Leica 12 V 50 W halogen bulbs Wan Never touch the glass bulb of halogen lamps with your bare fingers Open the cover on the rear of the optics carrier by sliding the lamp cover opener to the right UUUUUUUUUUUUUU E L CS 78 19 80 81 78 Reflector 79 Bulb socket 80 Lever 81 Bulb slider 82 Lamp cover opener Make sure that the quick change lamp mount is on Main Light 1 so that the bulb slider is all the way to the righ
76. ptical accessories gt Select the eyepieces objective and the documentation accessories if used and check them for cleanliness DRemove dust and dirt see page 58 Checking accessories Lock the swing arm Outfit the microscope with all accessories for use see pages 22 24 gt Turn 0 assistant s attachment to the desired side Leica M844 see page 25 or install attachment for second observer on the desired side Leica M820 Balancing Release and balance swing arm see pages 33 and 34 Function check Switch the microscope on Warning 1 Motors return to their home positions Before switching on the microscope ensure that the travel paths of the X and Y axes and the focus motor are free of obstructions Check the Main Light 1 Main Light 2 and OttoFlex II illuminators Replace defective bulbs before the operation begins Test all handswitch and footswitch functions Check the brake function using both the handles and the remote brake release see page 33 Positioning at the OP table Position the surgical microscope at the operating table as desired and secure the brakes on the floor stand see page 36 Checking tube settings Check the tube and eyepiece setting for the selected user see page 24 D reat the eyepieces with an antifogging compound if necessary Sterility Fit sterile components and sterile drape if used see page 59 Warning 2 Dan
77. ptimize the settings for the camera and or monitor see manufacturer s operating instructions gt Also refer to page 18 Fault remedy gt Adjust the brightness or replace the filter in the dual attachment Fault remedy gt Check the parfocality of the microscope see page 24 Fault remedy gt Focus precisely insert graticule if necessary Leica M844 Leica M820 Ref 10 713 294 Version 65 Technical data Microscope Leica QuadZoom M Leica OptiChrome Magnification changer Field diameter Working distances WD Focusing Leica ErgonOptic Eyepieces Objectives X Y coupling Tilt drive Remote control Weight Lamps Main light Leica OttoFlex Quick change lamp mount main light only Filters 66 Optical system with four beam paths 100 stereopsis for surgeon and assistant Leica M844 only High performance optics for high contrast brilliant colors crisp image definition and outstanding resolution 6 1 range motorized 7 mm to 80 mm 175 mm 200 mm 225 mm Motorized 54 mm with automatic reset Binocular tube 10 to 50 Low and UltraLow Il variable 0 180 variable 30 150 Wide field eyepieces for spectacle wearers 8 33x 10x 12 5 x Leica OptiChrome WD 175 mm f 200 mm WD 200 mm f 225 mm WD 225 mm f 250 mm WD working distance f focal length Motorized 50 mmx50 mm with automatic reset Motorized 15 50
78. pulse If you select the function OCF1 XY reverse the wide angle observation system is switched on and at the same time the X and Y movement directions are reversed The SDI is mounted directly on the optics carrier of the Leica M820 If a beam splitter is to be used in addition mount it on the SDI using a stereo adapter 10446992 For further information please see the manufacturer s operating instructions OCULUS SDI BIOM Trade names of OCULUS Warning 5 There is a danger of injury to the patient as a result of changing the working distance using the motorized adjustment of the ceiling mount if the working distance falls below the minimum of 140 mm due to the use of accessories such as wide angle observation systems The footswitch function for moving the ceiling mount up and down may not be used in combination with accessories that cause the working distance to fall below the minimum of 140 mm Before up down movements always check first to ensure that the range of movement is free of obstructions Leica M844 Leica M820 Ref 10 713 294 Version Preparing the stand F40 C40 CT40 Balancing the swing arm Warning 6 A Risk of injury through surgical microscope moving down Never balance or re equip the instrument over the field of operation After re equipping always rebalance the microscope on the swing arm Release the swing arm see below Hold the microscope by t
79. questions you may have Model Serial No Introduction Symbols in this user manual The symbols used in this user manual have the following meanings Warning regarding use hazard or noncompliant use that can lead to serious injury or death AN Warning Warning regarding use hazard or noncompliant use that can lead to minor injury but significant article property or environmental damage N Caution CE Useful information that can help the user operate the product correctly and efficiently 2 Request for action here you are requested to take action Leica M844 Leica M820 Ref 10 713 294 Version 3 Introduction Design and function Leica M844 F40 and Leica M820 F40 on ogo oa RA UN Control unit 9 Tilt head Horizontal arm 10 Column Swing arm 11 Cable support XY unit 12 Base Binocular tube 13 Holding fixture for video control unit 0 assistant s attachment Leica M844 only 14 Handle Handle 15 Suspension device for footswitch Optics carrier Leica M844 Leica M820 Ref 10 713 294 Version Leica M844 F19 and Leica M820 F19 O M o coa RA Ua Ne Control unit 9 Horizontal arm 10 Swing arm 11 XY unit 12 Binocular tube 13 0 assistant s attachment Leica M844 only 14 Handle 15 Optics carrier Leica M844 Leica M820 Ref Tilt head Column Cable support Base Holding fixture for video control unit Handle Suspension device for footswitch 10 713 29
80. r This Guidance and manufacturer s declaration document is based on EN 60601 1 2 2001 Table 201 from EN 60601 1 2 2001 Guidance and manufacturer s declaration electromagnetic emissions The Leica M820 and Leica M844 surgical microscopes are intended for use in the electromagnetic environment specified below The customer or the user of the Leica M820 and Leica M844 surgical microscopes should assure that they are used in such an environment Emissions test Compliance Electromagnetic environment guidance HF emissions The Leica M820 and Leica M844 surgical microscopes use HF energy according to CISPR 11 only for its internal function Therefore its HF emissions are very low and are not likely to cause any interference in nearby electronic equipment HF emissions Class A The Leica Leica M820 and Leica M844 surgical microscopes are suitable according to CISPR 11 for use in establishments other than domestic and those directly connected to the public low voltage power supply network that supplies buildings used for domestic purposes Harmonic emissions Class A IEC 61000 3 2 Voltage fluctuations Compliant flicker emissions IEC 61000 3 3 Leica M844 Leica M820 Ref 10 713 294 Version 51 Guidance and manufacturer s declaration Table 202 from EN 60601 1 2 2001 Guidance and manufacturer s declaration electromagnetic immunity The Leica M820 and Leica M844 surgical microscopes are intended for use in the el
81. rm parallel to the ceiling mount arm and lock it Switch off the power switch on the swing arm Raise the ceiling mount using the remote control CT40 ceiling mount Caution 4 A Danger of collision The surgical microscope can collide with surrounding components the ceiling or lamps Check the danger area before moving the swing arm Carefully move the ceiling mount upwards and observe ceiling and lamps Swing the microscope aside Remove sterile components Lock the swing arm Switch off the power switch on the swing arm Press the Up key on the remote control and raise the stand Positioning at the operating table Leica M820 F40 Leica M844 F40 Leica M820 F19 and Leica M844 F19 Bring the Leica M820 F40 Leica M844 F40 Leica M820 F19 and Leica M844 F19 surgical microscope into transport position see page 32 Release the footbrakes see page 35 Using the handle carefully push the surgical microscope to the operating table and position it as desired Positioning options All positions are also possible as the mirror image posi tion LE The instrument must be positioned such that the range of movement is large enough for the expected tasks Set footbrake Plug the footswitch into the control unit and position it Plug the power cable into the horizontal arm Connect the potential equalization to the horizontal arm Ce Warning 9 Danger of fatal electr
82. se the handle or remote brake release when the instrument is in an unbalanced state Leica M844 Leica M820 Ref 10 713 294 Version 49 Safety notes AN 50 Warning 12 Light which is too intense can damage the retina Safeguard your patients e short exposure times e low brightness settings e protective filters GG420 built in Warning 13 Motors return to their home positions Before switching on your Leica M844 ensure that the travel paths of the XY zoom and focus motors are free of obstructions The tilt motor is not moved Warning 14 Danger of fatal electric shock Disconnect the power cable from the power socket before changing fuses Warning 15 Halogen lamps become very hot Always switch off the control unit before changing a bulb Allow bulbs to cool off before changing them Dangers of use AN Caution 1 Connecting unauthorized secondary devices to the auxiliary power socket can lead to damage to the surgical microscope and to the secondary device Never connect secondary devices to the auxiliary power socket unless they conform to the specifi cations For requirements of use see the Technical data page 67 Caution 2 There is a risk of damage to the surgical microscope from uncontrolled tilting Firmly hold the handles before triggering the All Brakes function Caution 3 Surgical microscope can move without warning Always lock the footbra
83. sk of injury through surgical microscope moving down gt Always lock the swing arm when transporting the microscope when changing equipment Position the swing arm approximately horizontally Pull out the retaining pin Move the swing arm slightly up and down until the retaining hook engages The swing arm is now locked Releasing the swing arm Move the swing arm slightly up and down at the same time pushing the counterlever of the safety hook upwards until the retaining pin clicks into position If necessary rebalance the swing arm 34 Leica M844 Leica M820 Ref 10 713 294 Version Transport transporting and parked positions Transport of the Leica M844 F40 and Leica M820 F40 AN Warning 9 Beware of Uncontrolled lateral movement of the swing arm e Tilting of the stand o Feet in lightweight shoes could become trapped beneath the casing of the base Before transport always set the Leica M820 F40 and Leica M844 F40 surgical microscopes to the transport position Never move the stand in the extended condition Never roll over cables lying on the floor AN Caution 3 Surgical microscope can move without warning Always lock the footbrake when you are not moving the system Transport position Whenever you transport your Leica M820 F40 and Leica M844 F40 first bring it into transport position AN Caution 2 There is a risk of damage to the Leica M820 F
84. switch off your Leica M820 and Leica M844 and disconnect it from the power supply Use a soft lint free cloth to clean the touch panel Do not apply cleaning agent directly to the touch panel rather apply it to the cleaning cloth Use a commercially available glass eyeglass cleaner or plas tic cleaner to clean the touch panel Do not apply pressure to the touch panel while cleaning it The touch panel is resistant to most disinfectants used in the medical field VAN Caution 8 Damage of the touch panel DOperate the touch panel using your fingers only Never use hard sharp or pointed objects made out of wood metal or plastic VAN Caution 9 Damage of the touch panel Never clean the touch panel using cleaners that contain abrasive substances These substances can scratch the surface and cause it to be become dull Maintenance The operating microscopes Leica M820 F40 Leica M820 F19 Leica M820 CT 40 as well as Leica M844 F40 Leica M844 F19 Leica M844 CT40 in principle are maintenance free The operating microscopes Leica M820 C40 and Leica M844 C40 Leica ceiling mount with lift arm in order to keep safety and reliability are subject to regular maintenance inspections with the following minimum time intervals At the latest 5 years after first bringing into service and then at least once a year Inspection by trained technicians e Functional and visual inspection of the entire ceiling
85. t Fold the reflector on the pin upwards and to the right Pull on the tab to remove the bulb socket complete with bulb Insert the new bulb socket and bulb Fold the reflector back down until it engages Whenever you replace a bulb reset the bulb s hour meter to 0 see page 46 Leica M844 Leica M820 Ref 10 713 294 Version 59 Care and maintenance Notes on reprocessing of resterilizable products Products Reusable products supplied by Leica Microsystems Schweiz AG such as rotary knobs objective protective glasses and capping pieces Reprocessing restrictions With regard to the processing of medical products used on patients or suspected patients suffering from Creutzfeldt Jacob disease CJD or its variant vCJD the local legal regulations must be observed As a rule resterilizable products used for these patients can be eliminated without danger by burning Occupational safety and health protection Particular attention must be paid to the occupational safety and health protection of the persons responsible for preparing contaminated products Current regulations of hospital hygiene and prevention of infection must be observed in the preparation cleaning and disinfection of the products Limitation of reprocessing Frequent reprocessing has little effects on these products The end of the product life cycle is usually determined by wear and year and damage through use Instructions Workplac
86. the Standard Values button the standard magnification is displayed regardless of the accessories used The magnification range is between 7x and 42x Standard Values 7x 42x Clicking this button again deactivates it and you are returned to the selection screen for the accessories you are using Din the top selection field enter the tube currently being used Use The How to menu This screen displays short summaries of various aspects of the operation of your surgical microscope The Help button in the static menu bar provides access to the How To pages at all times The Service menu This area is password protected Leica M844 Leica M820 Ref 10 713 294 Version 4 Safety notes Intended use e The Leica surgical microscope is an optical instrument for improving the visibility of objects through magnification and Illumination It can be applied for observation and documen tation and for human and veterinary medical treatment The Leica surgical microscope may be used only in closed rooms and must be placed on a solid floor or attached to a strong ceiling The Leica M820 and Leica M844 surgical microscopes are sub ject to special precautionary measures for electromagnetic compatibility They must be installed and put into operation in accordance with the guidelines manufacturer s declarations and recommended safety distances Tables 201 202 204 and 206 from
87. tlet max output power 100 VA For requirements of use see the Technical data page 67 Fuse holder 1 A time lag Caution 1 Connecting unauthorized secondary devices to the auxiliary power socket can lead to damage to the surgical microscope and to the secondary device Never connect secondary devices to the auxiliary power socket unless they conform to the specifica tions For requirements of use see the Technical data page 67 Leica M844 Leica M820 Ref 10 713 294 Version Controls F19 floor stand 7 Handles 19 Power switch 20 Balancing knob 22 Footbrake release lever 23 Footbrake 24 Touch panel 83 Retaining hook blocks swing arm 84 Retaining pin holds retaining hook in released state 85 Articulation brakes regulate ease of movement 23 Ei Mus H Em IET Yi i H 25 Power supply 26 Fuse holder 2x 6 3 A time lag 27 Hour meter for the surgical microscope 28 Potential equalization socket 30 Auxiliary power outlet max output power 100 VA For requirements of use see the Technical data page 67 31 Fuse holder 1 A time lag Caution 1 Connecting unauthorized secondary devices to the auxiliary power socket can lead to damage to the surgical microscope and to the secondary device Never connect secondary devices to the auxiliary power socket unless they conform to the specifica tions For requirements of use see the Technical data page 67 Leica M844
88. to do so Only original Leica replacement parts may be used in servicing the product After service work or technical modifications the unit must be reconfigured with observance to our technical requirements If the unit is modified or serviced by unauthorized persons is improperly maintained as long as maintenance was not carried out by us or is handled improperly Leica will not accept any liability he influence on other devices by the Leica surgical microscope has been tested in accordance with EN 60 601 1 2 The system passed the emissions and immunity test The standard preventive measures and safety regulations pertaining to electromagnetic and other radiation have to be observed User qualifications The Leica surgical microscope may only be used by physicians and medical assistance personnel with appropriate qualifi cations who have been instructed in the use of the instrument Specific training is not required Directions for the operator of the instrument Follow the instructions described here Follow the directions provided by your employer regarding work organization and safety Stability floor stands only When moved in OP the swing arm must be folded up and locked and the brakes must be applied otherwise the swing arm may drift out of control and the stand could topple Hazards due to moveable parts This section describes uses that inadvertently could
89. top right selection field select the connection you are using You can scroll forwards or backwards in the list by clicking the arrowheads In the bottom right selection field select the footswitch handswitch you want to check 46 Leica M844 Leica M820 Ref 10 713 294 Version gt You can scroll forwards or backwards in the list by clicking the arrowheads Now press all of the keys one after the other of the footswitch handswitch you want to test If the key you have pressed is functioning properly a green dot appears on it on the display The comment tested appears in the caption field of the key Microscope Settings Enter the accessories you are using into this screen This will ensure that the correct magnification appears in the Main menu by the surgeon You can scroll forwards or backwards in the list by clicking the arrowheads Din the middle selection field select the magnification of the eyepieces being used by the surgeon You can scroll forwards or backwards in the list by clicking the arrowheads Din the bottom selection field select the objective you are using You can scroll forwards or backwards in the list by clicking the arrowheads Ifyou do not make a selection the magnification will be calculated for the standard configuration Ultra Low II Tube ocular with magnification 8 33 and objective with WD 200 Ifyou activate
90. unction You can scroll forwards or backwards in the list by clicking the arrowheads Select the desired function c Click the caption of the desired key to assign the selected function to it Or press the corresponding key on the connected footswitch Leica M844 Leica M820 Ref 10 713 294 Version 43 Use Overview of function groups Drive Magnification Magnification Focus Focus Tilt Tilt No function Extra AD F 1 toggle AD F 1 pulse AD F 2 toggle AD F 2 pulse OCF1 toggle OCF1 pulse OCF2 toggle OCF2 pulse OCF3 toggle OCF4 pulse StepCycle Depth Enhancer Toggle No function EP The Toggle function changes the status of a function such as On Off The Pulse function continuously changes a status such as increasing the brightness Mainlight on off OttoFlex Light on off Mainlight Mainlight OttoFlex Light OttoFlex Light All Lights on off No function Light Reset Reset Magnification Reset Focus Reset Tilt Reset XY Reset All No function XY function X X Y Y XY Reverse XY Reverse OCF1 XY Complete No function With the XY Complete function you can assign all four functions of the joystick simultaneously Handle assignment You can assign up to three functions of your choosing to the handle The fourth function must always be All Brakes However you can assign this function to any position you like Select the handle in the right sel
91. ver balance or re equip the instrument over the field of operation After re equipping always rebalance the microscope on the swing arm Warning 7 Risk of injury through surgical microscope moving down Always lock the swing arm e when transporting the microscope e when changing equipment Warning 8 Risk of injury through surgical microscope moving down Complete all preparations and adjustments to the stand before the operation If settings need to be altered during the operation first swing the microscope away from the operating field If the microscope needs to be re equipped do this before the operation Before re equipping always lock the swing arm Do not use the handle or remote brake release when the instrument is in an unbalanced state Warning 9 Beware of Uncontrolled lateral movement of the swing arm e Tilting of the stand o Feet in lightweight shoes could become trapped beneath the casing of the base Before transport always set the Leica M820 F19 and Leica M844 F19 surgical microscopes to the transport position Never move the stand in the extended condition Always push the instrument to displace it never pull it Never roll over cables lying on the floor Warning 10 Danger of fatal electric shock gt The surgical microscope may be connected to a grounded socket only Warning 11 Risk of injury through surgical microscope moving down Do not u

Leica M-844,M-820 Surgical Microscope

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