GRASEBY Ms 16A Infusion Pump Service Manual
Contents
1. 4 6 4 3 Orientation of dials and rate switches 4 7 4 4 4 8 4 5 Piezo transducer 4 9 4 6 4 10 Naidoo 4 12 5 1 Cam and cam follower a rr EL e b ka kar 5 5 5 2 Camswitch operating 5 5 5 3 Typical waveform for one 5 6 5 4 Using the cam 5 7 5 5 Thr strig az bb gggxxxa x xJJgx x x g gg 5 7 6 1 Battery replacement ck h ka Henan ka 6 4 6 2 Continuous alarm 6 5 7 1 Exploded view of the MS16A Syringe 7 4 7 2 MS16A POB 2 kr K k nan b Va k 7 7 Page vi Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Warnings Warnings tell you about dangerous conditions that may occur and which could lead to death or serious injury to the user or patient if you do not obey all of the instructions in this manual 1 Remember2. ya a b r ka 4 iw a nen dira 2 3 Divo EE 2 3 Driva TOL O 2 3 Act ator IMOVEMON cis 2 b n KS kesa Ka 2 3 al CEN 2 3 II EDS 2 9 Occl sSl R pi SSUL 2 3 o 2 3 Dir mt Dmm 2 3 leet mL 2 4 Battery ty OC 2 4 sud cae 2 4 2 m 2 4 DIMENSIONS eenia ke kare an den K e K n 2 4 Daya ZH r J nrnr 2 4 caye k Ha ka 2 4 2 6 crece etu cxt kk e 2 4 Murder EET 2 4 SU Ths Fe cm mm 2 5 Electrical safety uices a iekecex kien cat b oua re d px a ERA me apis RED reden 2 5 ze 2 5 Biological 2 5 PACKAGING E 2 5 Medical device directive 93 42 2 5 Quality system standards 0444 40 0000 Wak ben ku a kalk REWA
3. cy Smiths Medical Publications This publication has been compiled and approved by Smiths Medical for use with their respective products It is supplied in this format to permit users to access the text and illustrations for their own use e g training and educational purposes Users of the equipment must ensure that they have read and understood the contents of the complete manual including the warnings and cautions and have been trained in the correct use of the product Smiths Medical cannot be held responsible for the accuracy and any resulting incident arising from information that has been extracted from this publication and compiled into the users documentation This publication maybe subject to revision and it is the users responsibility to ensure that the correct version of manual text illustration is used in conjunction with the equipment ACCEPT REJECT UK WD244LG s medical com Grasebye 516 Technical Service Manual 0473 Part Number 005 0105 6 Issue 6 February 2005 2005 Smiths Medical family of companies All rights reserved Smiths Medical 516 Syringe Driver Published by Smiths Medical possible care has been taken in the preparation of this publication but Smiths Medical accepts no liability for any inaccuracies that may be found Smiths Medical reserves the right to make changes without notice both to this publ
4. Set rate switches to 99 time 10 motor pulses Min 40 secs max 45 secs Hold START TEST should run 3 4 secs then cut out Sounder sounds for few seconds after motor stop Behaviour can be repeated Release pushbutton Unit restarts and runs normally Cam alignment 1 rev for every 6 pulses Half nut slip Alarm sounds and driver shuts off at end of travel without slip Do twice Set rate switches to 36 time 10 motor pulses Min 11 secs max 13 secs Set rate switches to 00 check actuator Should be stationary for 8 minutes or more Quiescent current off lt 5 Current but stationary 50 mA Sounder check Clearly audible on battery insertion General check Case in good condition All labels properly present Case sealed Technical Service Manual Issue 6 February 2005 5 11 Graseby MS16A Driver Chapter 6 Maintenance Smiths Medical MS16A Syringe Driver Chapter 6 Maintenance Caution Handling of printed circuit boards is required during disassembly assembly A static controlled work station including a conductive mat and grounded wrist strap should be used to provide protection against electrostatic discharge ESD or circuit board damage could result Maintenance The Department of Health in its publication MDA DB 9503 has recommended that infusion drivers are checked
5. Technical Service Manual Issue 6 February 2005 3 5 Smiths Medical MS16A Syringe Driver SSA Q 6LLINO o A0 6 Figure 3 1 816 Circuit diagram Technical Service Manual Issue 6 February 2005 Smiths Medical MS16A Syringe Driver ft JE De 03 4 Black to 0V Red to 9V GM1228 B Figure 3 2 MSI6A Printed circuit board layout Technical Service Manual Issue 6 February 2005 7 MS16A Syringe Driver Chapter 4 Disassembly and Assaembly Smiths Medical MS16A Syringe Driver Chapter 4 Disassembly and Assembly General Warnings Refer all service repair testing and calibrations only to suitably qualified technical personnel Unauthorised modifications to the driver must not be carried out The use of spare parts other than those recommended is not advised and may affect the correct operation of the driver resulting in injury or death Cautions The moving parts of the driver do not require any lubrication during their lifetime Any worn or stiff parts should be replaced With the case dismantled take great care to avoid contamination of the exposed switches e g by the entry of solder particles Handling of printed circuit boards is required during disassembly assembly A static controlled work station including a conductive mat and grounded wrist strap should be used to provide protection ag
6. Ensure that the foam pad is fitted to the inside of the front case see Figure 4 4 Foam pad position Place the front case half item 1 over the PCB and hold it in position Turn the PCB and case over so that the PCB is uppermost Check that the leads for the motor and battery connector springs are not trapped Figure 4 4 Foam pad position 15mm FRONT CASE 0105 0427 GM1291 A Push the battery connector springs into their slots Red to and Black to ve as shown on the battery compartment label Secure the PCB in position with five screws and fibre washers The switch pin insulator item 24 must be held by the lower middle screw and separate the PCB from the piezo transducer Check for correct operation of the START TEST pushbutton and that clockwise rotation of both rate switches causes the dials to indicate increasing numbers Place the motor and gearbox in position and fit the insulating spacer item 23 Fit the motor clamp item 13 with the securing screw and washer do not tighten the screw Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Note The motor case has two pegs on the front face align the motor so that the pegs do not foul the locating pillar in the case assembly h Assemble the actuator and back bearing and the leadscrew and bea
7. Acetal 2590 glass filled Kemetal and PA GF glass filled nylon Metal parts stainless steel mild steel Circuit board epoxy glass fabric Holster elasticated soft backed fabric Note All materials used in this product are latex free po Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Standards Electrical safety Complies with EN 60601 1 1990 601 1 1988 Type BF Applied Part for protection against electric shock EMC Complies with EN 60601 1 2 1993 for emissions and immunity to electromagnetic disturbances Group 1 Class for emitted RF radiation according to EN 55011 1991 making it acceptable for use in domestic establishments Complies with RTCA DO 160D Operation in a commercial aircraft with controlled pressurised cabin area which maintains cabin pressure at normal cabin environment Smiths Medical International Ltd ref CIB B1100 Biological evaluation Complies with EN 30993 1 1994 Biological evaluation of medical devices Part 1 Guidance on selection of tests Packaging Complies with EN 20780 1993 Packaging Pictorial marking for handling of goods Medical device directive 93 42 EEC CE marked under Annex II risk class IIb active medical device Notified Body AMTAC 0473 Quality system standards used EN ISO 9001 and EN 46001 Symbols An electrical safety classification in the international safety standard for medical electrica
8. February 2005 6 5 MS16A Syringe Driver Basic Troubleshooting Smiths Medical Basic troubleshooting information on the syringe driver is also given in the Instruction Manual part number 0105 0549 Fault Possible cause Action The Syringe Driver will not start The START TEST pushbutton not pressed in enough Flat battery There is no battery The battery is the wrong way round The rubber insulator cap is still on the terminal The Syringe Driver is faulty Press in correctly Fit a new battery Fit a battery Fit battery correctly as shown on the diagram in the battery compartment The infusion is going too quickly or has ended early Wrong rate set Syringe plunger pushbutton or finger grips not held in the actuator or case correctly Plunger position measured wrongly Line was filled after the plunger position was measured Rate set for MS26 on the MS16A Syringe driver has become wet Correct error Correct error Correct error Correct error Correct error Recalculate rate for MS16A Remove from use and disassemble clean reassemble seal and test infusion runs slow Wrong rate set Wrong syringe brand or size Plunger position measured wrongly Correct error Correct error Correct error Syringe Driver stops before emptying the syringe Exhausted battery Blocked or trapped infusion line Fit new battery Clear line Syrin
9. If required the alarm may set to a continuous tone when the syringe stops e g at the end of an infusion To change the alarm tone 1 10 Separate the case halves and remove the leadscrew and bearing assembly see Chapter 4 Disassembly and Assembly Remove one screw one fibre washer and the motor clamp see Figure 4 1 Remove the remaining four screws and fibre washers securing the PCB assembly to the front case If the wires for the piezo transducer assembly are secured with an adhesive pad to the motor clamp carefully lift the leads from the pad Pull the battery connector springs from their locating slots and lift out the PCB assembly complete with microswitches and motor and gearbox assembly The START TEST pushbutton seal and switchplate may remain in the case Remove the PCB completely Remove capacitor C5 and resistor R17 from the board Discard C5 Motor replace with R17 Battery Contacts R17 move to C5 position for Continuous Alarm conversion Figure 6 2 Continuous alarm conversion Fit resistor R17 in the C5 position Assemble the driver see Chapter 4 Disassembly and Assembly Test the driver see Chapter 5 Testing Ensure that the alarm tone is continuous when the motor stops Check that the alarm stops when an infusion starts and when the battery is removed Technical Service Manual Issue 6
10. Marcal Linear Accuracy Rig MS16A PCB assembly GM1228 A Item No QV A NY MS16A Syringe Driver 005 0105 0105 0079 0105 0083 0105 0640 0151 0641 0105 0616 0105 0858 Figure 7 2 MSI6A PCB assembly Description Part Number PCB assembly 0105 0503 Custom IC 0105 0416 POT 50 ohms 2093 1040 POT 200 Kohms 2093 5240 Transistor BC184L 2450 2718 Transistor BC214L 2 off 2455 2719 Transistor VNIOKLS or VN10KM 4 off 2462 4135 Microswitch 3 off 3560 0021 Rotary switch 2 off 3571 0000 Not illustrated Not illustrated Not illustrated Not illustrated Not illustrated Not illustrated Not illustrated Technical Service Manual Issue 6 February 2005 sm ths Smiths Medical MD Inc 1265 Grey Fox Road St Paul MN 55112 U S A European Representative Smiths Medical International Limited Watford Herts UK WD24 4LG www smiths medical com Part No 00SM 0105 6 February 2005 2005 Smiths Medical family of companies All rights reserved smiths Smiths Medical A part of Smiths Group plc
11. switches off owing to TR9 being turned on until C5 is charged via R17 3 4 Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Test circuit When the START TEST button is pressed and held TR3 is turned on by switch S1 see Start page 3 1 and the motor circuit completed via switch 52 The motor runs until it is switched off by the primary guard circuit When the button is released the syringe driver resumes the normal drive mode Safety features Part of the circuit associated with pins 9 10 11 and 12 operates via to allow the operation of the driver only while safe conditions exist A crucial design feature of IC1 is that this area of circuitry is completely separated within the silicon chip by a diffusion well and has a separate power supply VSS Protection against overdosing is provided by three basic concepts 1 Breaking the motor current by the cam operated microswitch 2 The complementary master slave action of transistors TR1 and TR2 3 Guard circuit with two methods of activation Low battery indication The master clock in IC1 causes pin 14 to be grounded approximately once per second During this pulse transistor TR5 conducts This illuminates the LED providing the battery voltage is sufficient to cause about 0 6 volts to be developed across resistor R13 When the battery voltage is too low to switch on transistor TR5 the LED ceases to flash
12. 0105 0069 0105 0503 0105 0520 0105 0542 0113 0017 3571 0000 0105 0006 0105 0040 Technical Service Manual 155 6 February 2005 MS16A Syringe Driver Smiths Medical General assembly of the MS16A continued Item No Description Part Number 29 Instruction label GMI 0105 0552 Instruction label Spanish 0105 0566 Instruction label English 0105 0571 Instruction label German 0105 0573 Instruction label French 0105 0575 Instruction label Dutch 0105 0577 Instruction label Italian 0105 0582 Instruction label Danish 0105 0589 Instruction label Swedish 0105 0594 Instruction label Greek 0105 0606 Tracking label Marcal Made in UK 0105 0627 30 Instruction manual Not illustrated English 0105 0549 GMI USA 0105 0550 German 0105 0559 French 0105 0560 Italian 0105 0562 Spanish 0105 0564 Dutch 0105 0576 Danish 0105 0587 Swedish 0105 0592 Greek 0105 0604 Marcal Made in UK 0105 0629 31 Carrying case 0000 0001 Not illustrated 32 Syringe cover 0105 0529 Not illustrated 33 Syringe driver base 0105 0108 Not illustrated 34 Fabric holster 0105 0027 Not illustrated 35 Training dummy 0105 0707 Not illustrated 36 Rate adjuster and key ring measuring tool 0105 0623 Not illustrated 37 Rate adjusting key 0113 0023 Not illustrated Smiths Medical 38 39 40 4l 42 43 Service manual Cam adjusting tool Spring test gauge assembly Lockbox Spare Key Kit Battery Cover Label
13. 0579 CE marked Italian 0105 0580 CE marked Danish 0105 0588 CE marked Swedish 0105 0593 CE marked Greek 0105 0605 CE marked USA Marcal 0105 0626 4 S N label non USA Made in UK 0105 0534 S N label USA Marcal 0105 0617 5 Pushbutton 0105 0009 Technical Service Manual Issue 6 February 2005 7 3 Smiths Medical MS16A Syringe Driver 8 Figure 7 1 Exploded view of the MSI6A Syringe Driver Technical Service Manual Issue 6 February 2005 Smiths Medical General assembly of the MS16A continued Item No onan 16 17 18 19 20 21 22 23 24 25 26 27 28 Description Button seal Switch bar Rate dial window LED window Rate dial seal Rate dial right Rate dial left Motor clamp Motor and gearbox assembly Switch lever and cam kit consists of the following parts Cam and pin assembly Camspring Leadscrew and bearing assembly Actuator body Blue Half nut Button assembly Actuator assembly consists of the following parts MS16A Syringe Driver Part Number 0105 0032 0105 0060 0105 0035 0105 0074 0105 0016 0105 0429 0105 0430 0105 0019 0105 0059 0105 0432 0105 0031 0105 0116 0105 0801 0105 0041 Blue Half nut Button Actuator body Actuator spring End back bearing Battery contact PCB assembly Spacer insulating Switch pin insulator Piezo transducer assembly x 1 Rate switch Battery cover Securing strap 0105 0011
14. Driver Smiths Medical Controls Operation The clear plastic lockbox is hinged at the back and features a lock at the front The syringe is held in place on the driver by the securing strap and the infusion line passed through the slot at the front of the box When the mm PER setting has been selected and the START TEST pushbutton pressed the loaded driver is located in the box which is then locked The patient controls Figure 1 3 may be viewed through the clear window at the side of the lockbox Patient controls Figure 1 8 consist of two rotary set rate mm PER slotted switches and a START TEST pushbutton START TEST 50 60mm I 9I mm PER GM0307 A GM0418 A Figure 1 3 516 Controls Note For detailed operating information refer to the 516 MS26 Instruction Manual part number 0105 0549 To start an infusion fit a primed syringe and press the START TEST pushbutton When held down the START TEST pushbutton tests a safety cut out circuit When released it starts the drive circuit Once started the front panel LED flashes approximately every second When the plunger reaches the end of travel syringe empty or is occluded the driver switches off the LED stops flashing and an audible alarm sounds If the START TEST pushbutton is held down for more than 3 seconds the alarm sounds the driver stops and the LED stops flashing If required the driver can be modified to so
15. V 2 5 gi er P 2 5 2 6 Chapter 3 Descriptions Circuit descriptions fe 3 3 Boop pM 3 3 OTAT serl VE a 3 3 ewar E 3 3 wi n al DN m 3 4 Secondary QUANG MER 3 4 g deb N N 3 4 Egli LL 3 5 Safety 1e aTUL deat rede etate AA fa da Sue etnies 3 5 Low battery INCICAUOM kl iius oce ii Pee kek ben kr n b 3 5 MS16A Circuit 518 3 6 MS16A Printed circuit board 3 7 Page iv Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Chapter 4 Disassembly and Assembly iude eer rey ee ee ee eee eee ee eee 4 3 Tools equipment and materials 22222 22 1 4 3 Removal and dismantling 4 5 Separation iss dlde be 4 5 Leadscrew and bearing assembly 4 5 Actuator and back bearing disassembly 4 5 PGB e mOVA MM Dive natal atest 4 5 Motor and gearbox disassembly 4 6 Assembiy OC CIN C
16. and switchplate items 5 6 and 7 may remain in the case e To release the piezo transducer see Figure 4 2 assembly unplug IC1 from its socket exposing the fixing clip Remove the piece of rubber from the clip Do not pull on the metal disk Push the clip through whilst gently holding the transducer assembly Rubber retainer GM1274 A Figure 4 2 Release piezo transducer assembly f To remove the PCB assembly completely unsolder the motor gearbox assembly item 14 from the PCB g Ensure that all traces of sealant if applied are removed from mating surfaces 5 Motor and gearbox disassembly a Separate the case halves and remove the leadscrew and bearing assembly as described in paragraphs 1 2 and 3 above b Remove the PCB assembly see paragraph 4 a d above c Unsolder the motor and gearbox assembly item 13 from the PCB 4 6 Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Assembly procedures Note Unless otherwise stated tighten all screws to a torque of 30 35 cNm 1 Motor and gearbox assembly a Ifa replacement motor is being fitted align pin in the cam assembly with the slot in the gearbox shaft and press the cam assembly onto the shaft b Connect and solder the motor leads to the PCB red to M and black to M Refit the PCB assembly complete with the motor and gearbox and the leadscrew assembly 2 PCB as
17. bead of sealant 0 5 1 5 to shaded area ree of sealant 9 O 0 0 9 Extra sealant required in NOTES battery contact area 1 Take care that no sealant gets onto the motor coupling the cam area the bearings leadscrew or actuator Close case halves within 10 minutes of applying sealant Wipe the joint to remove excess sealant before it sets GM1278 C Figure 4 6 Sealant application a Ensure that alternate motor pulses do not differ by more than 2096 See Chapter 5 Testing Cam Adjustment b Ensure that all traces of original sealant are removed c Check that mating faces are clean and dry using isopropyl alcohol cleaner d Apply a continuous thin bead around the inner lip of the front case half as shown in Figure 4 6 Keep the area around the cam and bearing free of sealant Note Close the case halves within 10 minutes of applying the sealant e Position the rear case half checking that the piezo transducer disc is centrally placed on the black clip Secure the case with three screws Ensure that a washer 1s fitted with the screw beneath the battery cover 4 10 Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver f Clean off any excess sealant before it sets The setting time is as specified for the sealant selected Note Ensure that the serial number label item 4 is fitted and complete g Fit the battery
18. ml capacity Occlusion pressure 3 5 Kg Maximum actuator force 50 5 9 V Controls START TEST and mm PER rate adjusters tens and units digit controls Alarm Audible frequency 3 KHz 0 5 kHz end of travel occlusion Duration 5 20 secs Volume Audible at 1m with normal or corrected hearing Technical Service Manual Issue 6 February 2005 2 3 MS16A Syringe Driver Smiths Medical Indicator Low battery level 7 0 V to 5 5 V LED stops flashing Flash period 1 05 secs 290 Yellow solid state LED Green solid state LED US Battery type PP3 size 9 V primary alkaline IEC 6LR61 6LF22 type Duracell MN1604 recommended Battery life 50 full deliveries depending on the operating conditions and battery condition Automatic switch off at end of plunger travel Accuracy of delivery The rate of the actuator is accurate to within plus or minus 546 of the rate set on the rotary switches Dimensions without syringe Height 53 0 0 5 mm Width 166 0 1 0 mm Depth 23 0 1 0 mm Weight including battery 190 gm Operating conditions 10 C to 4 40 C 30 to 75 RH non condensing 700 hPa to 1060 hPa Transport and storage conditions 40 C to 70 10 to 100 RH non condensing 500 hPa to 1060 hPa Materials Case and battery cover ABS RTA 50 injection moulding Labels 125 micron fine matt Lexan Other materials nitrile rubber small plastic parts
19. observing the correct polarity as shown by the illustration in the battery compartment The alarm sounds for about 15 seconds If this does not happen fit a new battery h Refit the battery compartment cover j Complete tests specified in Chapter 5 Testing Technical Service Manual Issue 6 February 2005 4 11 MS16A Syringe Driver Smiths Medical Lockbox Ensure patient line exits via the slot Lack Retaining pip GM1272 Figure 4 7 Lockbox Installation To install the syringe driver in the lockbox 1 Unlock and open the box 2 Place the syringe driver in the box mm PER arrow pointing to the lock 3 Ensure the retaining pip clicks into the recess on the driver 4 Close and lock the lid ensuring that the patient line exits via the slot above the key CAUTION Always ensure that the tubing is not kinked or trapped Removal To remove the driver from the lockbox unlock the box and open the lid Ease the retaining pip from the side of the driver and remove the driver 4 12 Issue 6 February 2005 Technical Service Manual Graseby MS16A Syringe Driver Chapter 5 Service Test Proceedures Smiths Medical MS16A Syringe Driver Chapter 5 Service Test Procedures This chapter describes the functional testing of the Syringe Driver The routines must be followed whenever the case is opened components replaced or any repair completed Typical situations include e routine p
20. runs until the cam operates the switch S3 1 6 revolution Because TR1 1s turned off whilst TR2 is conducting the motor circuit is broken and the motor stops perhaps after some overrun When the output from pin 21 goes low transistor TR2 is turned off and TR1 is turned on The motor circuit is now completed via TR1 and the motor runs until the cam operated switch SW3 returns to its original position another 1 6 revolution Because TR2 is turned off whilst IC1 21 remains low the motor circuit is once again broken until the next high output from pin 21 restarts the sequence Since each motor pulse results in 1 6 of a revolution of the leadscrew the actuator advances the syringe plunger by 1 6 of the thread pitch that 1s by 0 117 mm Technical Service Manual Issue 6 February 2005 3 3 MS16A Syringe Driver Smiths Medical Note The amount of overrun at each step though indeterminate is non cumulative After 60 pulses the cam will have rotated through ten revolutions plus the error of the last step Transistor and its associated components form an adjustable current regulator which is pre set to limit the torque of the motor and therefore the maximum actuator thrust Because the motor drive pulses may be quite infrequent a light emitting diode LED is driven at a fixed frequency by pin 14 This provides a continuous check on the functioning of the oscillator and the low battery indication se
21. 1604 The use of rechargeble cells are not recommended Some Duracell type batteries do not fit snugly in the battery conmpartment The metal can on the battery catches and deforms at th rear of the compartment A new battery must be fitted when the indicator lamp fails to flash 1 Remove the driver from the lockbox if fitted See Chapter 4 Disassembly and Assembly 2 Slide off the battery compartment cover at the back of the driver GM0305 A Figure 6 1 Battery replacement 3 Turn the driver upside down and carefully remove and discard the battery ensure that national or local regulations concerning battery disposal are followed 4 Insert a new battery into the battery compartment ensuring correct polarity as shown by the illustration in the battery compartment Notes The driver is protected against the effects of accidental reverse polarity of the battery The alarm sounds for about 15 seconds after the battery is fitted If fitting the battery is difficult insert the rear of the battery first and then push the terminal end down If the fit is still tight source an alternative brand of 6LR61 alkaline battery 6 Fit the battery compartment cover ensuring that it snaps into place when closed 7 Place the driver in the lockbox if fitted See Chapter 4 Disassembly and Assembly Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Continuous alarm conversion
22. C 4 7 Motor and gearbox assembly siirsin naie kak kak k na k nen dl nk ka n d sa k n kk AA 4 7 way sens ken ken 4 7 uds 4 9 Leadscrew and bearing assembly 4 9 Ca seassembl MED 4 10 elel oro 4 12 Chapter 5 Service Service Test Procedures rores mtra 5 3 Tools and guip mem Gee eee 5 3 Adjustments potentiometers 5 4 cg exu me 5 5 Cam 5 9 Volt MUST IESI e 5 7 Feier RN 5 7 Guard IES M 5 8 Flash frequency 5 8 Timer and feed rate tests iieri ttu aeri kk kan kulak nak ek n kek WAW kG 5 8 Cam alignment 5 9 5 9 Rate switch 5 9 CUIFENT TESTS ae He 5 9 PH 5 10 E
23. Graseby MS16A Syringe Driver Chapter 1 Product Overview Smiths Medical MS16A Syringe Driver Chapter 1 Product Overview Syringe Syringe Infusion finger grip barrel line Syringe Securing Syringe Actuator plunger strap nozzle START TEST Rate Indicator LED scale pushbutton setting flashes once every second GM0303 E when infusing Figure 1 1 816 Hourly rate syringe driver Description The MS16A Syringe Driver Figure 1 1 is a portable battery operated device designed for the continuous infusion of small volumes of liquid from commercially available disposable syringes The driver operates over time spans ranging from less than 30 minutes to 60 hours The syringe plunger is operated by a linear actuator at rates ranging from 1 to 99 mm hour mm PER The rate required is set by adjusting two digital rotary switches Most brands of syringe can be fitted to the driver and the volumetric delivery depends on the size of the syringe being used A millimetre scale is provided on the front of the driver to measure the stroke length of the syringe so that the rate in mm hour may be calculated For added security the syringe driver can be secured in a transparent plastic lockable box see Figure 1 2 When fitted the box minimises the risk of tampering with the infusion Syringe Driver Lock GM1273 Figure 1 2 Lockbox Technical Service Manual Issue 6 February 2005 1 3 MS16A Syringe
24. ainst electrostatic discharge ESD or circuit board damage could result The following procedures describe the dismantling and assembly sequence when replacing parts If the case halves are separated the complete test routine see Chapter 5 Testing must be completed successfully Unless otherwise stated tighten screws to a torque of 30 35 cNm A faulty PCB should be replaced with a new PCB The item numbers given in the following descriptions refer to Figure 4 1 MS16A exploded view Tools equipment and materials required Cam adjustment tool Part number 0105 0079 Silicone grease Part number 6885 2006 Silicone sealant non acetic Loctite 209161 or similar For a list of additional tools and materials used when testing the MS16A see Chapter 5 Testing page 5 1 Technical Service Manual Issue 6 February 2005 4 3 MS16A Syringe Driver Figure 4 1 816 exploded view Smiths Medical GM1198 B Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Removal and dismantling procedures 1 Case separation a b Lay the driver face down on a clean flat surface Slide off the battery cover item 27 and if fitted remove the battery Remove the three screws and washer securing the halves of the case assembly Lift off the rear half If the case is sealed gently pry the two halves apart Remove any sealant from mating surfaces 2 Leadscrew and bearing
25. assembly removal a b Separate the case halves as above Loosen the motor clamp item 18 so that the motor and gearbox assembly item 14 can be tilted clear of the case Gently pull the leadscrew and actuator assembly items 15 and 16 from the motor and gearbox assembly 3 Actuator and back bearing disassembly a Separate the case halves and remove the leadscrew and bearing assembly as above Remove the back bearing item 20 from the end of the leadscrew Depress the plunger half nut item 18 on the actuator assembly item 19 and slide the actuator off the leadscrew at the back bearing end When the half nut and spring are freed from the leadscrew ensure that they are not mislaid Ensure that the half nut is blue rimmed 4 PCB removal a Separate the case halves and remove the leadscrew and bearing assembly as above Remove the motor clamp item 13 screw and fibre washer Remove the four remaining screws and fibre washers securing the PCB assembly item 22 to the front case item 2 If the wires for the piezo transducer assembly item 25 are secured with an adhesive pad to the motor clamp item 13 carefully lift the leads from the pad Pull the battery connector springs from their locating slots and lift out the PCB assembly and motor and gearbox assembly Technical Service Manual Issue 6 February 2005 4 5 MS16A Syringe Driver Smiths Medical The START TEST pushbutton seal
26. by a qualified technician at regular intervals Smiths Medical supports this policy and recommends that the tests and if necessary the adjustments given in Chapters 5 and 6 of this publication should be carried out at regular intervals Additionally with reference to the Department of Health publication SAB 94 26 July 1994 we recommend that for any of our products that have been dropped or subjected to severe fluid spills should be removed from use immediately and be checked by a qualified technician Cleaning Warnings To prevent serious damage to the driver it must not be immersed in any liquids or exposed to strong organic solvents Wipe off spills immediately Do not allow fluids or residues to remain on the pump The pump is not designed to be sterilised Failure to observe these warnings may cause internal damage to the pump resulting in patient injury or death To clean the driver wipe the case with a damp cloth soapy if necessary Allow the driver to thoroughly dry before use To reduce wear on the actuator assembly clean the leadscrew using a small brush with stiff bristles e g a tooth brush Annual performance check Check the performance of the driver annually following the tests shown in Chapter 5 Testing Technical Service Manual Issue 6 February 2005 6 3 MS16A Syringe Driver Smiths Medical Battery replacement The unit uses an IEC 6LR61 battery 9 V alkaline size e g DURACELL MN
27. c z 5 10 Test Checklist sise sunniyan il Xn 5 11 Chapter 6 Maintenance Mell nal G i dots e ag iiS 6 3 SPICE Uem 6 3 Animal 6 3 Battery replacement T M M 6 4 Continuous tL 6 5 Basic roubleshoolrig i5 c4 nu xaniy d say al Ehed ME VAR NA W ADER P RE SK SE W 6 6 Chapter 7 Parts List General assembly Of the MSUGA EE Ek kk kk kek kk 7 3 MS16A PCB assembly u KAKA KK kk 7 7 Technical Service Manual Issue 6 February 2005 Page v MS16A Syringe Driver Smiths Medical Figures 1 1 MS16A Hourly rate syringe 1 3 1 2 MEO CKD OX Fics as keke ayd 1 3 1 3 MS16A Controls inscia O VE VER 1 4 1 4 5 treten ERR dada ie la do 1 5 3 1 MS16A Circuit kk AKA KK KA KRA 3 6 3 2 MS16A Printed circuit board 3 7 4 1 MSTA exploded view kanika kk na 4 4 4 2 Release piezo transducer
28. d work station including a conductive mat and grounded wrist strap should be used to provide protection against electrostatic discharge ESD or circuit board damage could result Take care to avoid contamination of the exposed switches circuit tracks and components e g by the entry of solder particles Refer all service repair testing and calibrations to suitably qualified technical personnel Unauthorised modifications to the driver must not be carried out 8 Federal law restricts these Syringe Drivers for use by or on the order of a physician This applies to drivers distributed only within the United States Page viii Issue 6 February 2005 Technical Service Manual Smiths Medical 516 Syringe Driver Glossary Abbreviations The following abbreviations are used in this Manual Abbreviation Meaning ABS Acrylonitrile Butadiene Styrene C Centigrade or capacitor cNm Centinewton metre DC Direct Current gm grams h hr hour hPa Hectopascal 7100 pascals IC Integrated Circuit Kg Kilogram Kilogram force KHz Kilohertz LED Light Emitting Diode ml Millilitre mm Millimetre N Newton PCB Printed Circuit Board R Resistor RH Relative Humidity Sec Second SW Switch TR Transistor V Volts Technical Service Manual Issue 6 February 2005 Page ix MS16A Syringe Driver Smiths Medical Page x Issue 6 February 2005 Technical Service Manual
29. d to continue making the system inherently safe in operation Pulses 1 3 and 5 are likely to be very similar to each other as are pulses 2 4 and 6 If wear or damage has occurred the duration of the odd pulses may significantly differ from the duration of the even pulses Alternate motor pulses are permitted to be of slightly different lengths but should not differ by more than 20 100 20 Made Cam switch Open GM0105_8017 GB C Figure 5 2 Camswitch operating timing Technical Service Manual Issue 6 February 2005 5 5 MS16A Syringe Driver Smiths Medical To measure the motor interval time a conventional scope with a good trigger is required a storage scope would be better Using the variable power supply place a 4 7 ohm resistor in the negative supply line and with a x10 scope probe measure the voltage across the resistor Run the pump at maximum rate and compare each consecutive pulse over six pulses Figure 5 3 illustrates the typical waveform expected The motor run time is measured from the start of the plateau to the trailing edge of the waveform where it is cut off by the cam s action MS16 Motor Pulses Volts 0 00 0 05 010 015 0 20 025 0 30 0 35 0 40 045 050 0 55 0 60 0 65 Time seconds GM0105 8044 GB B Figure 5 8 Typical waveform for one pulse The variation in duration of the six consecutive pulses in each revolution should not be more than 2090 If necessary adjust the motor ru
30. e Low battery indication page 3 5 Primary guard Whenever the motor 15 energised i e whenever the node marked is held low this is sensed at pin 22 If is held low for more than 3 7 seconds 896 cycles of the master clock the output from pin 11 causes TR3 to switch off In normal use the motor runs for less than 3 7 seconds so the guard circuit only operates when the motor is stalled e g when the syringe is empty or when the delivery line is occluded if a transistor or the cam operated switch fails or when the START TEST pushbutton is held depressed Secondary guard If the main oscillator ever fails the run time of the motor is limited by a secondary guard circuit When the motor 18 energised capacitor C2 acquires a charge via resistor R4 the charge is quickly dissipated at the end of the motor drive pulse by diode D4 If the motor attempts to run for longer than approximately 5 seconds the voltage on capacitor C2 i e voltage at pin 9 falls to a critical level causing the output from pin 11 to switch off The driver will fail safe switch off regardless of how held low for longer than normal operating pulse duration Switch off alarm The piezo transducer X1 and associated components TR8 R18 R15 R16 are arranged so that an alarm tone sounds when the bottom end of R16 is held low This occurs for a few seconds whenever TR3
31. e for 5 motor pulses to occur is 30 33 5 secs c Set the rate to 99 and check that the time for 10 motor pulses to occur is 40 45 secs Hold down the START TEST pushbutton and check that the motor starts and then stops and sounder cuts in between 3 3 4 0 secs d Release the START TEST pushbutton Observe that the unit restarts with flashing LED and a single motor pulse 7 Cam alignment Increase power supply to 10 V DC and check that six pulses equals one revolution of the leadscrew 8 Half nut slip Set the supply at 10 V DC and rate at 99 Check for correct stalling The LED must stop flashing the alarm must sound and the half nut must not slip when the actuator runs to the end of the leadscrew Repeat at least twice 9 Rate switch test a Set rate to 36 and check that the time for 10 motor pulses to occur is 11 13 secs b Set rate to 00 and start the driver LED flashing Check that no motor pulses occur over a period of at least 8 minutes This can be most easily determined by an absence of actuator movement The syringe driver may be removed from the Linear Accuracy Rig before continuing 10 Current tests a Ata supply voltage of 9 V DC measure the supply current with the unit in the OFF state LED not flashing alarm silent Check this does not exceed 5 mA b Set rate to 00 and start unit LED flashing Check that the supply current excluding LED flashes does not exceed 50 mA at any time in a 30 s
32. ebruary 2005 Page vii MS16A Syringe Driver Smiths Medical Cautions Cautions tell you about dangerous conditions that can occur which may cause damage to the pump if you do not obey all of the instructions in this manual A damaged pump must never be put into active service as it may be a hazard to patients through under or over infusing 1 To prevent serious damage to the driver it must not be immersed in any liquids or exposed to strong organic solvents If immersion occurs or the driver is subject to a serious spillage or wetting incident it must be thoroughly tested by a competent person in accordance with the procedures in this service manual before re use with a patient Wipe off spills immediately Do not allow fluid or residues to remain on the pump The pump is not designed to be autoclaved steam sterilised ETO sterilised or subjected to temperatures in excess of 45 C 113 F Failure to observe this caution may cause serious damage to the pump 4 To avoid possible malfunction of the pump do not expose the pump to X rays gamma rays or other ionizing radiation or to the RF interference or strong electric magnetic fields emitted for example by arc welding equipment or mobile transmitting equipment 5 Moving parts of the driver do not require lubrication during their lifetime Worn or stiff parts should be replaced 6 Handling the printed circuit board is required during disassembly assembly A static controlle
33. econd test period Technical Service Manual Issue 6 February 2005 5 9 MS16A Syringe Driver Smiths Medical 11 Sounder check Check that whenever power is restored e g battery removed and replaced an undistorted sound clearly audible at arms length and lasting 5 20 seconds 18 produced 12 General a Check that both case halves are in good condition and that all interior screws are present and tightened b Remove the dummy case and fit the rear case see Chapter 4 Case assembly c Affix new front label if required and seal unit d Clean the unit and fix the appropriate Service Label e Ensure that the History record sheet is completed 5 10 Issue 6 February 2005 Technical Service Manual Smiths Medical Test Checklist MS16A Action Cam follower adjustment Pass Fail MS16A Syringe Driver Comment Even 20 pulses Actuator plunger check Is it blue 9 volt thrust test 4 5 kg max 7 volt thrust test 3 0 kg min Guard test Motor stops within 10 secs Flash frequency period at 9 Volt supply 20 flashes in 20 5 21 5 secs or 1 05 2 sec per flash or 0 93333 0 97143 Hz Flash frequency period at 7 Volt supply Change less than 1 5 Set rate switches to 55 time 5 motor pulses Min 36 secs max 41 secs Actuator should travel 0 55 0 61 mm Set rate switches to 66 time 5 motor pulses Min 30 secs max 33 5 secs
34. er Chapter 3 Circuit Descriptions Smiths Medical MS16A Syringe Driver Chapter 3 Circuit Descriptions Logic Start Refer to Figures 8 1 MS16A Circuit diagram and 3 2 MS16A Printed circuit board layout The Custom Integrated Circuit IC1 contains a very low power oscillator which operates at a fixed frequency The output of the master clock is fed into a divider chain which includes binary coded switches SW4 and SW5 so that rates over a 99 1 range can be selected IC1 also contains the switching electronics which control the Start Motor Drive and Guard circuits The battery return line 0V is switched by transistor TR3 which is controlled from pin 11 of This control is reset by a negative going pulse at pin 10 Since pin 10 is biased low through resistor R2 the negative going pulse is provided in the transition period during operation or release of the START TEST button SW1 Diode D1 a low voltage drop type protects the circuit components from damage if the battery polarity is reversed Motor drive In the operation mode IC1 pin 21 produces a square wave pulse train the frequency of which is determined by the setting of the Set Rate rotary switches SW4 and SW5 When the output from pin 21 goes high transistor TR2 is turned on and TR1 is turned off With the cam operated switch SW3 in the position shown in Figure 3 1 the motor circuit 1s completed via TR2 and the motor
35. ge Driver stops with LED still flashing Driver mechanism worn The motor may click Technician to replace worn component s Note Ensure that the new style label a blue half nut and the latest actuator are fitted Issue 6 February 2005 Technical Service Manual Graseby MS16A Syringe Driver Chapter 7 Parts List Smiths Medical MS16A Syringe Driver Chapter 7 Parts List General assembly of the MS16A Item No Description Part Number 1 Case complete consisting of 0105 0517 Front body assembly Rear body assembly Battery cover rate dial window Non CE marked front panel label English spacer insulating Insulator switch pin Instruction label 2 Front body sub assembly including Foam Pad 0105 0558 Foam Pad 0105 0427 3 Front Panel label IMPORTANT When ordering a CE marked Front Label please supply the serial number details of the Syringe Driver if this information is not supplied then a Non CE marked label will be issued It is the responsibility of the owner to ensure that the correct labels are replaced on the Syringe Driver Non CE marked English 0105 0023 Non CE marked 516 only English 0105 0118 Non CE marked French 0105 0109 Non CE marked German 0105 0119 Non CE marked Dutch 0105 0578 Non CE marked Italian 0105 0581 CE marked English 0105 0563 CE marked Spanish 0105 0565 CE marked German 0105 0572 CE marked French 0105 0574 CE marked Dutch 0105
36. he end of travel Start the syringe driver running and allow two motor pulses Load the actuator with a 3 Kg load The unit must run for six or more motor pulses without stalling Reset the power supply to 9 V DC Remove the driver from the Thrust rig Guard test Temporarily short pin 20 IC1 to rail Hold down the START TEST pushbutton and check that the motor starts and then stops in 5 10 seconds Remove the short from pin 20 Flash frequency Set rate to 00 mm hr start normal running and monitor the front panel LED flash period The period between flashes should be 1 029 seconds minimum 1 071 seconds maximum i e 1 050 seconds 2 Adjust R9 if necessary Alternatively if using a timer counter the flash frequency should be set at between 0 97143 Hz max and 0 93333 Hz min The flash frequency should not change by more than 1 596 when the supply voltage is reduced to 7 volts Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver 6 Timer and feed rate tests Place the syringe driver in the Linear Accuracy Rig part number 0105 0858 place the dti extension rod on the actuator assembly and set the dti to zero a With a supply of 9 volts set the rate to 55 and check that the time for 5 motor pulses to occur is 36 41 secs Ensure that the actuator advances along the leadscrew a distance of 0 55 0 61 mm in this time b Set the rate to 66 and check that the tim
37. ication and to the product which it describes Copyright 9 2005 Smiths Medical family of companies rights reserved No part of this publication may be reproduced transmitted transcribed or stored in a retrieval system or translated into any human or computer language in any form or by any means without the prior permission of Smiths Medical Smiths Medical MD Inc 1265 Grey Fox Road St Paul MN 55112 U S A European Representative Smiths Medical International Limited Watford Hertfordshire United Kingdom WD24 4LG http www smiths medical com Registered in England Company number 362847 Trademarks and acknowledgements Graseby and Smiths are trademarks of the Smiths Medical family of companies All other trademarks are acknowledged as the property of their respective owners Technical Service Manual Issue 6 February 2005 Page i MS16A Syringe Driver Smiths Medical ISSUE RECORD Issue Pages Reason for change Date 5 Re issue of Manual All May 2000 6 Lockbox and US variants added Corporate All February 2005 i d change Page ii Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Scope of this manual This manual enables service personnel to service and repair the MS16A Syringe Driver It has been updated to incorporate Lockbox information and the US variant Related manuals Refer to the following Instruction Manual when more detai
38. l equipment Type BF If the equipment is used as intended there is no risk of a serious electric shock But it is not suitable for direct connection to the heart Refer to the accompanying instructions on how to use the equipment Detailed instructions on how to use the syringe driver are given in the Instruction Manual part number 0105 0549 C The CE mark demonstrates that the Syringe Driver conforms to the requirements in the European Council Directive 93 42 EEC concerning medical devices 0473 The number 0473 identifies the Notified Body under which the Quality Systems operated within Smiths Medical are assessed Technical Service Manual Issue 6 February 2005 2 5 MS16A Syringe Driver Smiths Medical Disposal When disposing the driver its accessories so best way to minimise negative impact on the environment The internal battery contains harmful substances First discharge the battery Do not open up the battery or incinerate it as it could explode Contact your local waste disposal service to find out about special recycling or disposal schemes Separate any other parts of the driver where arrangements can be made for their recovery either by recycling or energy recovery Important Existing national or local regulations concerning waste disposal must take precedence over this advice Issue 6 February 2005 Technical Service Manual MS16A Syringe Driv
39. lanned preventative maintenance PPM e after the pump has been opened whether not repaired e whenever it 1s required to verify that the pump is safe to use Note The case must be resealed if the case halves have been separated Smiths Medical recommends that the Syringe Drivers are functionally and safety tested annually particularly if they ve been accidently maltreated Although the case is sealed it is not intended to be fully waterproof It is merely a matter of good practice to check the functionality of a unit before using it in a patient critical situation Tools and equipment The following tools and equipment are required to complete the adjustments tests and calibrations Description Part number Cam adjustment tool 0105 0079 Thrust 0105 0651 Spring test gauge assembly or weights 0105 0083 1 5 2 3 x 5 kg Stop watch 1 2 resolution Linear Accuracy Rig 0105 0858 Vernier calipers 0 10 V variable DC supply at up to 50 mA Dummy rear case refer to Smiths Medical Service Dept Standard Service Department tools and equipment A dummy rear case consists of a rear case that has been cut in half so that only the battery end of the case with two fixing holes remains Technical Service Manual Issue 6 February 2005 5 3 MS16A Syringe Driver Smiths Medical Adjustment potentiometers The adjustment potentiometers VR5 and VR9 are behind the front panel label Peel back
40. led operating information is required The Service Manual contains basic driver operation information only e MS16A Syringe Driver MS26 Syringe Driver Instruction Manual part number 0105 0549 A Smiths Medical service contacts In the event of any queries or problems that cannot be resolved by this manual please contact the appropriate Service Repair Centre UK address SMITHS MEDICAL INTERNATIONAL LIMITED Repair Centre WATFORD WD24 4LG ENGLAND TEL 44 0 1923 246434 FAX 44 0 1923 447773 Web www smiths medical co uk USA service address MARCAL MEDICAL INC 1114 BENFIELD BLVD SUITE H MILLERS VILLE MARYLAND 21108 2540 TEL 410 987 4001 FAX 410 987 4004 Web www marcalmedical com email customerservice 9 marcalmedical com Technical Service Manual Issue 6 February 2005 Page iii MS16A Syringe Driver Smiths Medical Contents Chapter 1 Product Overview 1 3 CONTOS o t 1 4 m 1 4 C Ts 1 5 Accessories and consumables SU LRL Rus dE dr EE 1 6 Chapter 2 Specification and Standards sn se Mee E Hesn 2 3 HEIL 2 3 TMG asena E E D 2 3 ANC yaya renee cece S ke kaka 2 3 Motor operating Interval
41. n time ratio by a slight bending of the cam follower lever using tool part number 0105 0079 Use the tool as shown in Figure 5 4 to tweak the operating lever so as to mimimise the error Note that the time interval between successive pulses may vary slightly This is not a controlled parameter and variation is permitted 5 6 Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver CAM ADJUSTMENT TOOL Figure 5 4 Using the cam adjustment tool N 9 Volt thrust test a Fit the dummy case to the driver b Ensure that the battery and battery cover are removed c Load the unit onto the Thrust rig as shown in Figure 5 5 Thrust rig set up Set the actuator 50 mm from end of travel Syringe Driver Actuator assembly Thrust test rig GM1276 D Figure 5 5 Thrust rig set up Technical Service Manual Issue 6 February 2005 5 7 MS16A Syringe Driver Smiths Medical Connect to the syringe driver a 9 V DC power supply Set the rate dials to read 99 Start the syringe driver Load the actuator with a weight of 4 5 kg Reduce VR5 until the driver starts to stall Reduce the load to 4 Kg Allow the driver to run for a minimum of six motor pulses and then replace the 1 2 Kg weight The driver must stall at 4 5 Kg within 6 motor pulses If it will not stall repeat step e 7 Volt thrust test Reduce the power supply to 7 V DC and set the actuator 10 mm from t
42. plastic to protect the syringe 0105 0529 driver and syringe Washable soft fabric holster with cover 0105 0027 Instructions for use Guide to subcutaneous 0105 0549 analgesia technical and performance specifications Tool to turn slotted rate switches 0105 0023 A full package of presentation instruction TPF 00130 and testing materials A transparent plastic lockable security 0105 0640 container includes two keys See page 1 3 Issue 6 February 2005 Technical Service Manual Graseby MS16A Driver Chapter 2 Specification and Standards Smiths Medical MS16A Syringe Driver Chapter 2 Specification and Standards Type Syringe driver with motor driven linear actuator pulsed motion Internal 9 V alkaline battery power source Digital electronic rate control Automatic switch off when the syringe is empty Infusion time lt 30 min 60 hours Rate range Variable delivery rate of 0 99 mm h in steps of 1 mm h Motor operating interval 420 rate seconds Drive accuracy The accuracy of the linear drive mechanism that pushes the syringe plunger forward 5 Drive force The force the linear drive mechanism that pushes the syringe plunger forward can produce gt 3 Kg Actuator movement 0 12 mm every time motor turns Actuator stroke 60 mm available depends on syringe Syringe sizes 2 ml to 35 ml The holster supplied will enclose most types of syringe up to 20
43. ring 3 Actuator and bearing a Ensure that the motor clamp item 18 is loose b Depress the plunger into the half nut and slide the actuator assembly onto the leadscrew from the back bearing end Figure 4 1 shows the correct way the actuator item 18 faces c Fit the back bearing to the end of the leadscrew d Assemble the leadscrew and bearing assembly 4 Leadscrew and bearing assembly a Align the pin on the leadscrew and bearing assembly with the slot in the cam assembly and press the leadscrew into position b Ensure that both front and back bearings fit snugly in their recess in the case assembly c Check the motor is still correctly positioned see Figure 4 5 Use a fresh adhesive pad on the clamp to hold the wires Position sounder leads Insulation Will on self adhesive pad GM1196 D Figure 4 5 Piezo transducer wiring Tighten the clamp screw e Assemble the case Technical Service Manual Issue 6 February 2005 4 9 MS16A Syringe Driver Smiths Medical 5 Case assembly Before the case is re sealed e ensure that internal work is complete e seal the case halves using a non acetic silicone sealant e g Loctite part number 6815 1544 and e follow all instructions supplied with the sealant observing recommended practices Do not use domestic silicone sealants Apply thin
44. sembly Ensure that the transducer is correctly wired to the PCB blue to 1 red to TP2 black to TP3 When reassembled ensure that the three pegs on the transducer base are located in the holes in the PCB a Fit the two rate dials items 11 and 12 the rate switches SW4 and SW5 items 26 A rubber seal item 10 must be fitted firmly into the groove in each of the dials i Place the two dials face upwards on the bench side by side so that the numbers on each dial on the adjacent sides are the correct way up if upside down change the dials left to right 1 Keeping the dials in the same relative position insert the left hand dial in SW4 and the right hand dial in SW5 ensuring that the dial position and switch position correspond see Figure 4 8 THESE NUMBERS MUST CORRESPOND RATE SWITCH NOTCHES ON DIALS INDICATE LEFT OR RIGHT HAND Figure 4 3 Orientation of dials and rate switches Technical Service Manual Issue 6 February 2005 4 7 MS16A Syringe Driver Smiths Medical ill Apply a smear of silicone grease Smiths Medical part number 6835 2006 to the edge of the slotted head screw items 11 and 12 Assemble the START TEST pushbutton seal and switch bar items 5 6 and 7 and place them in position over microswitches SW1 and SW2 Ensure that the switch bar is aligned across the contacts of SW1 SW2 Ensure that the cam lever part of item 15 is on SW8 and that it pivots freely
45. the front panel label from the righthand side nearest the LED to expose the access holes to the resistors Variable resistor VR9 thrust is located directly above the LED VR5 is near top When adjustments have been completed it may be necessary to replace the front panel label if it does not adhere when pressed back in position When replacing the label ensure that the small clear plastic window is in its recess over the rate dials Notes If any unit is found to be over or under infusing during testing inform your local RAQA Department Ensure that the button surround on the actuator body is blue Figure 7 1 items 15 and 14 Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Service Testing Note Before starting separate the cases and fit a dummy rear case Connect a link from TP2 behind the lefthand square window to 9 V and another link from TP1 behind the righthand square window to 0 V 1 Cam follower adjustment nd 3 lobed cam ZA KO Cam spring 4 switch N PCB GM0105_8016 GB D Figure 5 1 Cam and cam follower The cam switch makes six transitions ON gt OFF or OFF gt ON every revolution Each transition causes the motor current to be cut off Pulses 1 3 and 5 will be terminated by the microswitch MAKING and pulses 2 4 and 6 will be terminated by microswitch BREAKING the circuit The motor must be restarted with a fresh comman
46. the rate is set milli METRES NOT milliLITRES The correct rate is essential to prevent serious injury or death to the patient 2 Any damaged pumps must be thoroughly tested by a competent person in accordance with the procedures in this service manual before re use with a patient Failure to observe this may result in patient injury or death 2 Completely prime the administration set and remove all air from both the administration set and the syringe before measuring the mm of fluid length otherwise the rate calculation will be incorrect 3 driver must only be used with the syringe rubber securing strap fixed firmly in place thus preventing an uncontrolled infusion to the patient that could result in serious injury or death 4 Never take a syringe that is not empty off the driver if it is still connected to the patient The infusion line must first be clamped or disconnected to prevent serious injury or death to the patient 5 The use of spare parts other than those recommended is not advised and may affect the correct operation of the driver resulting in injury or death 6 The syringe driver must not be used for infusing medication where pulsatile delivery action is unacceptable 7 The syringe driver must not be used in environments with flammable gas mixtures or with oxygen enriched atmospheres 8 the syringe driver is used in the lockbox the alarm volume will be reduced Technical Service Manual Issue 6 F
47. und a continuous tone when the driver stops See Chapter 6 Maintenance for modification instructions For additional protection the syringe driver can be secured in a Lockbox Issue 6 February 2005 Technical Service Manual Smiths Medical MS16A Syringe Driver Packed set The MS16A packed set part number 0105 0504 is supplied with the following items 1 MS16A Syringe Driver Battery type 6LR61 Instruction manual 2 3 4 Rate adjuster 5 Shoulder holster not US version 6 Clear cover not shown MS 16A HOURLY RATE Syringe Driver GRASEBY dese mm PER 3 smiths MS 16A Syringe Driver MS 26 Syringe Driver E A Instruction Manual mane suse Manus ven 10 7 person Aro Se be Vr uang the Drver GM1277 B Figure 1 4 Package contents Technical Service Manual Issue 6 February 2005 MS16A Syringe Driver Smiths Medical Accessories and consumables Item 100 cm infusion set Subcutaneous infusion pack Syringe driver non slip base Cover Holster Instruction manual Rate adjuster Training pack Lockbox Description Part number PVC line with 25 gauge needle 0105 0029 BD 10 ml syringe Tegaderm dressing 0105 0117 alcohol wipe transfer needle 100 cm infusion set Provides a secure base to stand the 0105 0108 syringe drive on a flat surface Clear rigid
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