Service Manual - BOC e
Contents
1. The following General Safety Warnings apply W1 W5 W6 W9 W12 W13 W20 amp W23 Disconnect Oasis from the gas supply Remove the E Clip from the Swivel Connector Note E Clips have a propensity to spring off when being removed If you use a small bladed screwdriver to prise the E Clip off ensure that the E Clip is shrouded by a cloth to prevent possible injury Slide the Hose Assembly off the Swivel Connector Remove the Mounting Clamp by unscrewing the four M4 Screws that retain it Unscrew the two M2 5 Grub screws that retain the securing dowels Turn the Oasis upside down press the Swivel Connector in towards the manifold and allow the dowels to drop out Note It may be necessary to tap the bottom of the manifold whilst pressing the swivel connector in order to release the dowels Discard all old O rings Clean the Swivel Connector Fit new seals and reassemble Ident 38 39 42 43 52 53 54 55 56 57 Pt No 201 0035 602 0126 201 0026 208 0011 602 0119 605 0030 208 0007 212 0040 212 0007 212 0024 Ge 65 Description Screw M4 x 12 CSK Universal Clamp Screw M2 5 x 5 Grub Dowel 2 x 16 Swivel Connector Hose Assembly E Clip 7mm O ring 5 x 2 Nitrile O ring 13 x 2 Viton O ring 7 x 1 5 Viton Qty NPPRPRPRENNF A Oasis Service Manual 702 0037 7 J une 2010 Page 18 of 19 Oasis 13 0 Spare Parts Parts are identified by Part Number throughout this manual2. BPR Medical for service without a valid decontamination certificate cannot be accepted and will be returned without further processing 9 0 Procedures for Periodic Inspection The following safety warnings apply Please read them carefully before you proceed W1 W3 W5 W6 W7 W8 W9 W10 W11 W12 W13 W15 W16 W17 W18 W19 W20 W21 W22 W23 and W24 Undertake Periodic Inspection every 6 months or when there is reason to believe that the device has sustained damage or may not be working correctly The aim of this inspection is to identify partial or complete function loss only Suction Vacuum Gauge Check gauge is in good condition is appropriately aligned and does not appear damaged Check function by turning the vacuum on suction controller knob anti clockwise with cylinder charged and turned on place a finger over the suction barb outlet and check the gauge dial moves smoothly to a level below 60kPa Flowmeter Check that the flowmeter is operational Starting at zero turn the flowmeter control knob anti clockwise through each position and ensure that oxygen is flowing at each setting Low Pressure Indicator With a charged cylinder connected and turned on check that the Low Pressure Indicator is withdrawn Turn the cylinder off and discharge any oxygen in the system by turning on the suction control flowmeter The Indicator should move forward smoothly and show red High Pressure Hose Inspect the high pressure oxygen ho
3. and in most cases can be purchased individually Service Kits include all parts required to service the Oasis based upon the instructions in this manual 13 1 Service Parts amp Kits 610 0049 Oasis Service Kit 610 0047 Krytox NRT 8908 Oxygen Tolerant Grease gt 04 0008 Venturi Silencer 14 0 Notes Note from manufacturer We welcome any suggestions you may wish to make that might improve this Service Manual Please call or fax us on the numbers given on page 3 Thank you SS ES ES Oasis Service Manual Page 19 of 19 702 0037 7 June 2010
4. half or fully charged cylinder Note however input pressure has a marginal effect on flow rate and this may influence If the flow rates are out of tolerance in one direction i e all are low or all are high then a certain amount of calibration can be performed by increasing decreasing respectively the output pressure of the regulator Details of how to do this can be found in the Regulator Technical Manual 10 2 Suction Flow Test Ensure that the Oasis is connected to a charged gas supply as in 10 1 above Connect a 1 litre suction jar system to the Oasis Suction Barb using a 1m length of suction hosing Take a similar length of suction tubing from the patient side of the suction jar and immerse it in a jar containing litre of tap water Turn the suction control knob fully on and time how long it takes to evacuate the litre of water The suction performance of the Oasis should deposit the water into the suction jar within 30 seconds 10 3 Vacuum Pressure Ensure that the Oasis is connected to a charged gas supply as in 10 1 above Check function by turning the vacuum on suction controller knob anti clockwise with cylinder charged and turned on place your finger over the suction barb and check the gauge dial moves smoothly below the value given in the specification for the model of Oasis you are testing 10 4 Suction Leak Through Ensure that the Oasis is connected to a charged gas supply as in 10 1 above and ensure that the Sucti
5. 2 0037 7 June 2010 m e pPoMPANDUBWNe PPP PPP pe ON onAU BRWN Page 11 of 19 Pt No 201 0028 207 0007 212 0017 602 0110 602 0124 602 0095 604 0028 208 0009 212 0015 602 0117 602 0109 602 0093 703 0107 201 0025 212 0030 212 0041 213 0007 214 0001 Oasis Description Screw M4 x 8 Button Head Washer 4mm O ring 6 x 1 5 Nitrile Flow Plate Slider Flowmeter Output Barb Control Knob Slider Carrier Plate Assembly Dowel 3 dia x 4mm O ring 1 78 x 1 78 Viton Flowmeter Output Body Drive Shaft Control Knob Decal Label Screw M4 x 16 CSK O ring 34 x 2 Nitrile O ring 5 5 x 1 5 Nitrile Detent Spring Detent Ball 212 0014 Cang 8 x 1 5 Viton Oasis Service Manual PP RPNPRPRPRPRPRPPNRPRPRP PRP RP BP 11 3 Suction Control Assembly a b C d e f g h m E Oasis Service Manual The following General Safety Warnings apply W1 W5 W6 W9 W12 W13 W20 amp W23 Disconnect Oasis from the gas supply Remove the screw securing the Suction Control Knob Pull the Control Knob from its shaft Remove the two Suction Body securing screws and nylon washers Disgard the washers Pull the Suction Body away from the manifold Note A twist and pull action may be required Unscrew the Control Needle from the Suction Body Remove the two O rings from the front of the Control Needle and disgard Clean the needle and fit new O rings Note Take care when fitting th
6. Service Manual OASIS Oxygen And Suction Integrated System Copyright No part of this manual may be copied for any reason without the written permission of BPR Medical Ltd Manufactured By BPR Medical Ltd 22 Hamilton Way Mansfield NG18 5BU United Kingdom Tel 44 0 1623 628281 Fax 44 0 1623 628289 Table of Contents TABLE ORCONTENTS ae ae 2 LO DESCRIPTION OFR S 1 MBOLS ciate deel ie 3 2 0 PRODUCT DESCRIPTION san 3 3 0 APPROVALS cae ie ae eeehimi 3 4 0 GENERAL SAFETY WARNINGS icenian e r E EE A 4 5 0 INSPECTION AND MAINTENANCE PERIODG cccccccceeeeeeeeeeeeeaeeeeeeanenas 5 6 0 SPECIFICATION sr a ann 6 7 0 SUCHOM IAR SYSTEMS eu Nee as einen 7 8 0 DECONTAMINATION CERTIFICATE ccccccccceceeceeeeeteeeeseeeeeeeaneenesaneenenes 8 9 0 PROCEDURES FOR PERIODIC INSPECTION uussessensseneennnennnennen een nenn 8 10 0 PROCEDURES FOR FUNCTIONAL CHECK cccccceceeeceeeeeeeeeeeeeeteeeeenneanes 9 10 1 Flow Rate Test 9 10 2 Suction Flow Test 9 10 3 Vacuum Pressure 9 10 4 Suction Leak Through 9 10 5 Flowmeter Leak Through 9 10 6 Oasis Leak Test 9 11 0 PROCEDURES FOR SERVICING Ann ecard sbented aa ee 10 11 1 Flowmeter Module 10 11 2 Flowmeter Sub Assembly 11 11 3 Suction Control Assembly 12 11 4 Suction Venturi 13 11 5 Suction Barb and Gauge 14 11 6 Swivel Elbow Assembly 15 12 0 ADDITONAL PROCEDURES FOR REPAIR 0 sesceeeeeseeueeeneees 16 12 1 Suction Gauge Assembly 16 12 2 Low Gas Pr
7. an one Yoke Seal between the cylinder and the regulator Before attaching the regulator verify that the post valve is not already fitted with a Yoke Seal Never add a second Yoke Seal to the regulator inlet while one is in place Make sure that the pin indexed or threaded fittings on the regulator inlet are compatible with the gas cylinder on which it is to be fitted Never attempt to force an incompatible connection The threaded bullnose connection on a UK medical oxygen cylinder may be the same as that for a UK medical air cylinder ensure that you have the correct cylinder for the application Oasis and its regulator are intended for use with oxygen only and must not be connected to an air cylinder Before removing a regulator from a cylinder fully close the cylinder valve and release all gas from the regulator Never use oxygen as a pressure medium to purge obstructed pipelines or equipment to operate pneumatic tools or to build up any pressure in tanks Never permit compressed medical gases to enter a regulator suddenly Always open the cylinder valve slowly Do not stand in front of a regulator outlet when opening the cylinder valve Do not use or store oxygen equipment near excessive heat gt 50 C or 125 F or an open flame Use only lubricants recommended by the manufacturer when servicing the Oasis The use of lubricants other than those recommended by the manufacturer may result in fire or explosion Oasis m
8. ars and disposable liner systems are designed for single use only and must be replaced after every patient use Single Use products should be disposed of in accordance with hospital protocols Do not attempt to clean and re use disposable filters or liners Oasis has been tested with the suction jar systems indicated in this manual The use of suction jar systems other than those listed and or approved by the manufacturer may result in poor or non performance of the equipment The accuracy of the flowmeter and suction device may be affected if the input pressure is other than that stated in the specifications Oxygen is not flammable but the presence of oxygen will drastically increase the rate and severity of combustion Hydrocarbons such as W13 W14 W15 W16 W17 W18 W19 W20 W21 W22 W23 W24 Oasis oil or grease become highly combustible in the presence of oxygen Oxygen must never be allowed to contact oil grease or other petroleum based substances Never administer oxygen while smoking or when near an open flame Oxygen cylinders have fill pressures up to 20 000 kPA 200 Bar Never use medical oxygen from a cylinder without first reducing the pressure to a safe level through a suitable pressure regulator Ensure that the threaded fittings or indexing pins on the regulator are properly mated and tightened before opening the cylinder valve Never install a pin index regulator with more th
9. e small O ring as this is easily broken From within the manifold remove the Needle Seat Remove the O ring around the seat and disgard Clean the seat and fit new O ring seal Clean the inside of the Oasis manifold and replace the Needle Seat Clean the Suction Body Apply a thin film of Krytox NRT 8908 to the outside of the larger of the Needle O rings and screw the Needle back into the Suction Body as far as it will go Fit a new Suction Body seal and smear its outside with a thin film of Krytox NRT 8908 Reassemble the Suction Body into the manifold making sure that a the dowel is at the top of the manifold and b the securing screw holes in the Suction Body are aligned with those in the Manifold Replace the securing screws using new nylon sealing washers and tighten Fit the Control Knob on the Control Needle sufficiently to allow you to turn the Control Needle but not so far as to allow the stop pins on the Suction Body and the Control Knob to meet Turn the Control Knob clockwise until the Control Needle seats comfortably Do not overtighten Remove the Control Knob and refit it such that the stop pin in the Control Knob is just to the right of the stop pin in the Suction Body Turn the Control Knob anticlockwise a sufficient angle somewhere between 5 and 60 until the stop pin in the Control Knob passes the stop pin in the Suction Body Press the Control Knob down onto the Control Needle and secure with the Co
10. essure Indicator 17 12 3 Swivel Elbow Assembly 18 13O SPARE PARTS at a Besen 19 13 1 Service Parts amp Kits 19 LAO NOTES sen ee euere nennen 19 Oasis Oasis Service Manual 702 0037 7 June 2010 Page 2 of 19 Oasis 1 0 Description of Symbols Attention see Instructions for Use ae Use no oil 2 0 Product Description Oasis is an oxygen flowmeter and a suction regulator integrated into one device driven by a single oxygen cylinder It is designed to provide controllable delivery of supplemental oxygen and suction in emergency situations or when patients are being moved on patient trolleys Oasis is intended to be fitted to the head end of patient trolleys to provide easy access to both oxygen and suction where and when it is needed most The integrated sturdy design provides protection from damage in a harsh environment The oxygen flowmeter is of fixed orifice type providing eleven pre set flow rates selectable by turning the control knob to the required position The flow rate at each position is shown through a window in the body of the flowmeter and is given in units of litres per minute lpm The patient or outlet connection barb is situated underneath the Oasis directly below the flowmeter control knob The suction device comprises a variable vacuum source to which a proprietary suction jar system can be connected Vacuum is generated using the venturi principle On turning the control knob oxygen is fed to t
11. he gas supply Remove the 4 screws securing the Mounting Bracket Using an 8 mm AF Open Ended Spanner remove the Flowmeter Output Barb Remove the grub screws securing the dowels Press the flowmeter into the manifold to allow the dowels to drop out of the manifold Remove the Flowmeter Module Assembly is the reverse of disassembly Note When reassembling the Flowmeter fit new Flowmeter Body and Output Probe seals Ident 5 15 19 35 37 38 39 40 Pt No 602 0124 212 0030 212 0014 201 0034 208 0015 201 0035 602 0126 610 0052 Description Flowmeter Output Barb O ring 34 x 2 Nitrile O ring 8 x 1 5 Viton Screw M4 x 6 Grub Dowel 3 x 30 Screw M4 x 12 CSK Universal Bracket Replacement Flowmeter Module Assembly Qty FHrHRrPNDDNHRHRHM N _ Oasis Service Manual Page 10 of 19 702 0037 7 June 2010 11 2 Flowmeter Sub Assembly a b C d e f g h k The following General Safety Warnings apply W1 W5 W6 W12 W13 W20 amp W23 Remove the M4 Button Head Screw and withdraw the Carrier Plate Assembly from the flowmeter shaft Note Do not disassemble the Carrier Plate Assembly unless there is reason to believe that the filter has become contaminated or one of the flow orifices has been compromised Pull the Control Knob complete with the Flowmeter Shaft away from the Flowmeter Body Remove the detent springs but leave the Control Knob Sl
12. he venturi generator which in turn provides a vacuum at the suction barb The amount of vacuum is indicated by the vacuum gauge indicated in units of minus Kilo Pascals kPa and minus Bar Bar Vacuum is only noticeable on the gauge when an obstruction is perceived by the system Occluding the output port or hose with your finger is a simple way of testing system performance To provide early indication that a cylinder is empty or has been turned off a low pressure indicator is included The indicator situated on the front panel shows red when there is no gas present A pressure regulator is provided with the Oasis to reduce the high cylinder pressure to a safe working level The regulator is permanently connected to the Oasis manifold 3 0 Approvals Oasis is a CE Marked device in accordance with the Medical Device Directive 93 42 EEC and meets the requirements of the following Harmonised Standards EN738 1 Pressure Regulators and Pressure Regulators with Flowmetering Devices EN10079 3 Suction Equipment Powered from Vacuum or Pressure Source SS a E E Oasis Service Manual Page 3 of 19 702 0037 7 June 2010 4 0 General Safety Warnings W1 W2 W3 W4 W5 W6 W7 W8 W9 W10 W11 W12 Before using or servicing this equipment read through the entire instruction manual Attempting to use this equipment without an appreciation of its correct operation its limitations and the general safe
13. ider in place Remove and disgard the Output O ring Seal from the Flow Plate Slider Leave the Flow Plate Slider in place Remove the O ring seals from the Flow Plate Drive Shaft and disgard clean the shaft and the detents machined into the bottom of the Control Knob taking care not to allow cleaning fluid on the Decal Label Refit new seals on the shaft and smear with a fine film of Krytox NRT 8908 grease before re assembly Clean the detent holes in the Flowmeter Output Body the detent balls and the detent springs Clean the Flow Plate Slider and the bottom of the Flowmeter Output Body Fit new Output and Flowmeter Body seals Align the Control Knob Slider such that the hole on its periphery aligns exactly with the detent hole in the Flowmeter Body Hold the Flowmeter Body upright to fit the Detent Springs Place the Detent Balls on top of the springs and refit the Drive Shaft maintaining compression when assembled Maintaining compression turn the Control Knob so that the flowmeter reads O zero Refit the Flowplate Carrier Assembly orienting it such that no hole no flow area on the bottom of the carrier plate is adjacent to the Output Seal Secure with the M4 Button Head Screw washer and new compression seal Smear a fine layer of Krytox NRT 8908 grease on the outside of the Flowmeter Body Seal to aid re assembly into the Oasis manifold Revision contingent control knob and drive shaft may be one unit 70
14. k Ball and Back Check Filter Discard the filter Remove the Grub Screws securing the gauge release dowels Whilst holding the Oasis upright press the gauge back into the manifold to allow the dowels to drop out Note It may be necessary to tap the top of the manifold whilst pressing the gauge in order to release the dowels Insert a small screwdriver into the suction barb orifice and lightly prise the suction gauge out of the front of the manifold Clean the Manifold Suction Barb and Back Check Ball Disassemble the Suction Gauge Assembly clean and reassemble according to section 11 6 below Apply a thin film of Krytox NRT 8908 onto the O ring seal on the outside of the Suction Gauge Assembly before lightly pressing it back into the manifold Drop the dowels back into place and secure with grub screws Note The gauge may be oriented by placing your fingers on the lens and turning it Fit a new Back Check Filter Place the Back Check Ball into the middle of the Back Check Filter and screw the Suction Barb complete with new O ring seal into the manifold until flush Ident 41 42 43 44 45 46 Oasis Pt No 602 0123 201 0026 208 0011 212 0031 214 0002 504 0007 Description Suction Barb Screw M2 5 x 5 Grub Dowel 2 x 16 O ring 17 x 1 5 Viton Back Check Ball Back Check Filter Qty PRPrENNF Oasis Service Manual 702 0037 7 J une 2010 Page 14 of 19 11 6 Swivel Elbow Assemb
15. ly a C e f The following General Safety Warnings apply W1 W5 W6 W9 W12 W13 W20 amp W23 Disconnect Oasis from the gas supply Remove the E Clip from the Swivel Connector Note E Clips have a propensity to spring off when being removed If you use a small bladed screwdriver to prise the E Clip off ensure that the E Clip is shrouded by a cloth to prevent possible injury Slide the Hose Assembly off the Swivel Connector Discard the two Swivel Connector O rings Clean the Swivel Connector Fit new O rings and reassemble Ident 38 39 42 43 52 53 54 55 56 57 Pt No 201 0035 602 0126 201 0026 208 0011 602 0119 605 0030 208 0007 212 0040 212 0007 212 0024 Ge 65 Description Screw M4 x 12 CSK Universal Clamp Screw M2 5 x 5 Grub Dowel 2 x 16 Swivel Connector Hose Assembly E Clip 7mm O ring 5 x 2 Nitrile O ring 13 x 2 Viton O ring 7 x 1 5 Viton Qty NPPRPRPREPNNF A Oasis Service Manual 702 0037 7 J une 2010 Page 15 of 19 12 0 Additonal Procedures for Repair 12 1 Suction Gauge Assembly a b C d The following General Safety Warnings apply W1 W5 W6 W9 W12 W13 W20 amp W23 Unscrew the Gauge Adaptor from the Suction Gauge Discard the four O ring seals Clean the Suction Gauge and Gauge Adaptor Note Do not immerse the Suction Gauge in fluid as this will affect its accuracy If there is reason to suspect that
16. ntage Medi Vac CRD Tyco Sep T Vac VacSax Flowmeter Spa Monokit Autoclavable Monokit Disposable Re useable suction jar for disposable liner Disposable liner Oasis cradle type Disposable canister Oasis cradle type Re useable suction jar for disposable liner Disposable liner Oasis cradle type Re useable suction jar for disposable liner Disposable liner Oasis cradle type Disposable canister Oasis cradle type Re useable suction jar for disposable liner Disposable liner Oasis cradle type Re useable suction jar for disposable liner Disposable liner Oasis cradle type Autoclavable suction jar Oasis cradle type Re useable suction jar for disposable liner Disposable liner Oasis cradle type 0 8 1 0 Litre W064 L212 65652 611 65651 910 B 65652 511 1510CE B 8888 310003 B 3833 132 9910 340 B MAK1000 A 5113080 B For the same reason all 3 Litre and larger suction jar systems are Suction J ar Size 1 2 1 5 Litre 2 0 Litre E124 EFR F807 FEOS A 1212CE 423 6EE B 65652 616 65651 920 B 65652 516 1515CE B 8888 310052 8338744454 B 8888 310839 88883408483 8888 310821 8338744395 B 3833 090 9910 208 B EE Oasis Service Manual 702 0037 June 2010 7 Page 7 of 19 Oasis 8 0 Decontamination Certificate A valid decontamination certificate must accompany equipment returned for servicing For reasons of Health amp Safety equipment returned to
17. on and Flowmeter functions are turned off Unscrew the Venturi Silencer and screw the Suction Exhaust Test Barb refer Spares Parts Lists into the Venturi Retainer Connect one end of a length of hose to the Test Barb and rest the other in a glass of water Place a finger over the Suction Barb and check that there are no gas bubbles coming from the length of hose if there are then this would suggest suction leak through 10 5 Flowmeter Leak Through Ensure that the Oasis is connected to a charged gas supply as in 10 1 above and ensure that the Suction and Flowmeter functions are turned off Connect one end of a length of hose to the Flowmeter Output Barb and rest the other in a glass of water Ensure that there are no gas bubbles coming from the length of hose if there are then this would suggest flowmeter leak through 10 6 Oasis Leak Test Ensure that the Oasis is connected to a charged gas supply as in 10 1 above and ensure that the Suction and Flowmeter functions are turned off Check that the indicator is not showing Turn the cylinder off leaving the system charged for 30 minutes Check that indicator does not come forward which would suggest a leak in the system somewhere E T Oasis Service Manual Page 9 of 19 702 0037 7 June 2010 11 0 Procedures for Servicing 11 1 Flowmeter Module a b C d e f The following General Safety Warnings apply W1 W5 W6 W12 W13 W20 amp W23 Disconnect Oasis from t
18. r degree Celsius Delivery Hose 6 0 mm inside diameter N Medium Suction Medium High Suction High Suction Option Option 60 kPa Option 90 kP a 150kPa 30kPa 30kPa 30kPa Vacuum Flow _ 10 16 1pm Em SCS dC GO Ipm typical Recommended Suction N 7 5mm inside diameter 7 5mm inside diameter 7 5mm inside diameter Hose ISO EN 10079 3 Rating Medium Vacuum Medium Vacuum Medium Vacuum Equipment equipment Equipment EE Regulator EE P Maximum Input Pressure kPa 20 000 kPa P3 Minimum Input Pressure kPa 900 kPa Outlet Pressure kPa Stated at 10 000 kPa Input Pressure and flow BOOP of 1 Ipm Maximum Flow Capacity Ea A Qi Standard Discharge in EEE P Outlet Pressure kPa 400 Stated at Input Pressure P3 and flow Q Oasis Service Manual Page 6 of 19 702 0037 7 June 2010 7 0 Suction Jar Systems Oasis Oasis has been tested and found to be compatible with the suction jar systems detailed in the table below Some 2 Litre size jars shown in the table whilst compatible with the Oasis suction regulator are too tall and are liable to be broken should the trolley be lowered or put into the Trendelenberg position These suction jar systems are therefore not compatible with Oasis and are shown with the manufacturer s part number crossed out e g 066 incompatible with Oasis Abbott Receptal Allegiance Medi Vac Guardian Medi Vac Flex Adva
19. se assembly for damage or wear Ensure that the swivel connection at the back of the Oasis moves freely Oasis Fixing Oasis should be fixed horozontally to the patient trolley in a secure manner Check that the Oasis is secure and that there is no movement Tighten or reposition by adjustment of the two grub screws accessed from the back of the Oasis bracket Check also the Suction Jar cage is secured adequately to the base of the trolley General Condition Inspect the Oasis for signs of general damage or disrepair Service Due A Service Due date is detailed on the rating label which should be checked to determine when service is next due a a E E Oasis Service Manual Page 8 of 19 702 0037 7 June 2010 Oasis 10 0 Procedures for Functional Check The following safety warnings apply Please read them carefully before you proceed W1 W3 W5 W6 W7 W8 W9 W10 W11 W12 W13 W15 W16 W17 W18 W19 W20 W21 W22 W23 and W24 A calibrated flowmeter with a maximum flow of at least 15 lom and an accuracy of better than 5 of reading is required for this test 10 1 Flow Rate Test Connect the regulator to a 1000 KPA oxygen pressure source Check the flow rate at each flow setting is within tolerance The tolerance for flow settings of between 1 Ipm to 15 Ipm inclusive are 10 and 20 for the 0 5 Ipm flow setting Where a variable Oxygen pressure source is not available the Oasis regulator can be connected to a
20. ssure Pull the coloured Venturi Cartridge from the Cartridge Retainer Note The illustration shows a blue medium suction venturi cartridge which may differ from that in the model you are working on Venturi cartridge colour denotes different suction performance characteristics refer Specification for further details Unscrew the Venturi Silencer and disgard Remove the O rings from all parts and disgard Clean all parts fit new O rings and Venturi Silencer Note Check that the orifice in the brass section of the Venturi Cartridge is clear from debris To assist reassembly apply a thin film of Krytox NRT 8908 to the O ring on the brass section of the Venturi Cartridge Assembly is the reverse of disassembly Oasis Ident 31 32 33 34 35 36 58 60 Pt No 301 0003 303 0039 504 0008 212 0034 201 0034 212 0073 602 0125 212 0089 Description Venturi Cartridge Blue Plug M5 Venturi Silencer O ring 12 1 x 1 6 Viton Screw M4 x 6 Grub O ring 6 07 x 1 78 Nitrile Venturi Cartidge Retainer O ring 6 75 x 1 78 Nitrile Oasis Service Manual 702 0037 7 J une 2010 Page 13 of 19 11 5 Suction Barb and Gauge a b C d e f g h The following General Safety Warnings apply W1 W5 W6 W9 W12 W13 W20 amp W23 Disconnect Oasis from the gas supply Unscrew the Suction Barb using a 22mm AF Spanner and discard the O ring seal Remove the Back Chec
21. the gauge is contaminated then replace it Fit new seals and reassemble Ident 47 48 49 50 51 59 Pt No 602 0121 212 0027 212 0028 212 0029 303 0033 212 0007 vii Oasis Description Suction Gauge Adaptor O ring 9 25 x 1 78 Viton O ring 7 5 x 1 5 Viton O ring 4 x 1 Viton Suction Gauge O ring 13 x 2 Viton Qty PPP PP Pe eee Oasis Service Manual Page 16 of 19 702 0037 7 J une 2010 12 2 Low Gas Pressure Indicator a b C d e The following General Safety Warnings apply W1 W5 W6 W9 W12 W13 W20 amp W23 Disconnect Oasis from the gas supply Remove the 1 4 BSP Plug using a 6 0 mm AF Allen Key Using a pair of long nose pliers grip the back of the indicator assembly Pull gently to remove Note Replacement Indicators are supplied as factory assembled units Before re assembly apply a thin film of Krytox NRT 8908 to each of the two Lip Seals on the indicator Gently insert the indicator into its port and using the long nose pliers push the indicator fully home whilst rocking it gently Refit the O ring and spring before screwing home the plug Ident 9 61 62 63 Pt No 212 0015 604 0031 213 0009 303 0038 Oasis Description O ring 1 78 x 1 78 Viton Indicator Assy Indicator Spring Plug BSP Oasis Service Manual 702 0037 7 June 2010 Page 17 of 19 12 3 Swivel Elbow Assembly a b C e f g h
22. ty warnings associated with compressed oxygen may result in patient or user injury Oxygen therapy may be a critical treatment A flowmeter should be used in strict accordance with the prescription and instructions of a qualified clinician The effectiveness of supplemental oxygen therapy can only be determined by continuous monitoring of blood oxygen levels It is essential that PaO2 or SpO2 monitoring is carried out when supplemental oxygen is prescribed Ensure that the oxygen cylinder is securely fastened to the trolley base When the flowmeter is turned off isolate the patient from the equipment by disconnecting the delivery tube from either the patient or the flowmeter Only appropriately skilled service personnel working in controlled conditions must perform disassembly assembly and testing of this equipment Do not submerge in water or allow any fluid to enter the equipment If you have reason to suspect that fluid or other ingress has occurred remove the device from use and contact the manufacturer The performance of the device may be affected if it is stored or transported in temperatures outside of the range 20 C to 60 C Check the cylinder contents before use and at regular intervals during use as low cylinder pressure may result in poor or non performance of the equipment Always change the oxygen cylinder when the oxygen cylinder contents gauge is showing red Hydrophobic filters for re useable suction j
23. untersink Screw Note There should be sufficient movement in the Needle O ring to provide a seal over an angle of more than 60 movement of the Needle itself The stop pins are designed to prevent over tightening of the Needle resulting in damage to the seal 702 0037 7 June 2010 Page 12 of 19 Ident 14 15 20 21 22 23 24 25 26 27 28 29 30 Pt No 201 0025 212 0030 602 0128 602 0129 602 0127 212 0045 212 0053 212 0039 208 0006 201 0029 207 0011 602 0139 212 0046 Description Screw M4 x 16 CSK O ring 34 x 2 Nitrile Suction Control Knob Suction Body Suction Control Needle O ring 30 x 2 Viton O ring 7 2 x 1 9 Viton O ring 2 x 1 Viton Dowel 2 5 x 6 Screw M3 x 20 Caphead Nylon Washer Control Needle Seat O ring 10 x 1 5 Viton Qty PRPNNPFPRPRP PRP RPP PP 11 4 Suction Venturi a b c d e f g h The following General Safety Warnings apply W1 W5 W6 W9 W12 W13 W20 amp W23 Disconnect Oasis from the gas supply Remove the M3 Grub Screw below the Venturi Silencer Remove the M5 Plug from the manifold Using a suitable probe passed through the hole left by the M5 port push the Venturi Cartridge Assembly out of the manifold Note A specific tool is not required to press the venturi out but care must be taken to select a tool that will not damage the venturi itself Use a probe that has no sharp edges and apply firm but constant pre
24. ust always be used in an upright position When fitting Oasis to a patient trolley ensure that the front membrane panel is vertical Oasis Service Manual 702 0037 7 June 2010 Page 4 of 19 Oasis 5 0 Inspection and Maintenance Periods Periodic Inspection 6 Monthly Can be performed with Oasis still connected to the patient trolley and in the hospital department in which the trolley is located Function Check Annual Performance check on Oasis Requires appropriate test equipment and therefore may require disassembly from the patient trolley for work to be done in workshop conditions Full Service 4 Years Strip down Service and full functional check Requires appropriate test equipment and will require disassembly from the patient trolley for work to be done in workshop conditions SS a a EE S Oasis Service Manual Page 5 of 19 702 0037 7 June 2010 Oasis 6 0 Specification Operating Storage and Transport 20 C to 60 C Temperature Range waray O ar FF l Nominal Flow Rate 0 0 5 1 1 5 2 3 4 5 6 8 10 15 Flow Accuracy E 10 of setting at 1 Ipm and above 20 of setting below 1 Ipm across the full input range Effect on accuracy as a result of i varying inlet pressure im Typically less than 15 change across the input pressure range ii varying outlet A Less than 1 of reading up to 5kPa 50cmH O back pressure resistance iii varying temperature a Less than 0 2 of reading pe
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