OES Medical Cygnus
OES Medical · Model Cygnus
Anaesthesia Ventilator Combines ease of use with sophisticated modes Large clear colour touch screen Volume / Pressure, Spontaneous, PSV – Plus, SIMV and SMMV modes Dual Waveforms High quality easy to use with low running costs Intuitive touch screen control with large easy to read colour screen Integrated Oxygen monitor with pop up key pad adjustment Variable orifice based Spirometry Electronic PEEP 2 hour battery backup Patient select initial screen User selectable patient weight default settings for 5, 10, 25, 50, 100 and 150 Kg User saveable patient configured settings with custom naming facility – six off Patient setting confirm button Touch screen set buttons for ventilator settings Pop up key pads for adjusting ventilator settings – Oxygen alarm, Minute volume, Tidal volume, Pressure limit and Target, PEEP, Rate – BPM, and I: E Ratio Measured value display box Colour coded wave forms Mode button display box with second row prompt arrow Ventilation mode select button – usable in case with user confirm Mute button with 120 second delay and reset facility Gas mix option with pop out menu Language options Time Case time with stop and reset facility.
Key tips
- ·A failed daily leak test takes the machine out of service immediately - there is no acceptable workaround.
- ·Never run an agent-specific vaporizer with the wrong agent, even briefly, during testing.
- ·CO2-absorbent exhaustion mimics several unrelated fault symptoms - rule it out early.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Fails the pre-use self-test / circuit check
HighSymptoms: Self-test fault, circuit-leak or compliance-check failure, will not be released for use.
Root cause: Patient-circuit / expiratory-valve leak, a flow-sensor fault, an O2-cell fault, or an internal pneumatic fault.
Flow / volume delivery inaccurate
HighSymptoms: Delivered tidal volume or flow does not match the setting, or fails the annual verification.
Root cause: Flow-sensor drift / contamination, an inspiratory / expiratory valve fault, or a blender / proportioning-valve fault.
O2 / air supply or blender fault
MediumSymptoms: Low-supply alarm, FiO2 not matching the setting, O2-cell reads wrong.
Root cause: Wall / cylinder supply issue, an inlet filter / regulator fault, the blender, or an aged O2 cell.
PEEP not held / high circuit pressure
MediumSymptoms: PEEP drifts, auto-PEEP, high-pressure alarms, poor exhalation.
Root cause: Worn or wet expiratory valve / diaphragm, or a blocked exhalation path.
Battery / power fault
MediumSymptoms: Short internal-battery run time, will not charge, transfers to battery unexpectedly.
Root cause: Aged internal battery or a power-supply fault.
Turbine / compressor fault (turbine units)
MediumSymptoms: Noisy operation, cannot meet flow demand, turbine / compressor alarm.
Root cause: Worn turbine / compressor.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Flow sensor(s)
Class Frequent wear itemRel. cost $$R&R Fairly easy
Expiratory valve / diaphragm
Class Frequent wear itemRel. cost $$R&R Fairly easy
O2 cell / sensor
Class Frequent wear itemRel. cost $$R&R Easy
Internal battery
Class Periodic replacementRel. cost $$R&R Fairly easy
Inlet filters / water traps
Class Frequent wear itemRel. cost $R&R Easy
Turbine / compressor (turbine units)
Class Major service partRel. cost $$$$R&R Difficult
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Flow sensor(s) | Frequent wear item | $$ | Fairly easy |
| Expiratory valve / diaphragm | Frequent wear item | $$ | Fairly easy |
| O2 cell / sensor | Frequent wear item | $$ | Easy |
| Internal battery | Periodic replacement | $$ | Fairly easy |
| Inlet filters / water traps | Frequent wear item | $ | Easy |
| Turbine / compressor (turbine units) | Major service part | $$$$ | Difficult |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Daily pre-anesthesia machine check: leak test, O2 sensor calibration, per facility protocol
- ·Scheduled vaporizer calibration and agent-specific service
- ·Absorber / CO2 canister replacement
- ·Breathing circuit and hose inspection
- ·Annual full PM and electrical safety test
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Fails the pre-use self-test
- Run the self-test with the exact circuit and humidifier that will be used.
- Leak-test the circuit and the expiratory valve; fit fresh flow sensors and an O2 cell if due.
- Repeat the self-test.
- Calibrate the O2 cell and flow sensors per the manual.
- Remove from service and refer an internal pneumatic fault to the OEM / biomed.
Symptom: Delivered volume or FiO2 wrong
- Verify tidal volume / flow with a calibrated gas-flow analyser and FiO2 with an analyser at the wye.
- Calibrate the flow sensors and O2 cell.
- Inspect the inspiratory / expiratory valves.
- Check the air / O2 supply pressures and inlet filters.
- Refer the blender / proportioning valve for service if the mix is still wrong.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating rooms
- Procedure / endoscopy suites requiring sedation
- Obstetric delivery rooms
Documents & Manuals
No documents available for this device yet.
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