Getinge Servo-i

Asset Type

Ventilator

Manufacturer

Getinge

Model

Servo-i

Manual Reference

Servo-i Ventilator System V3.0 User’s Manual, English edition, Order No. 65 14 892 E313E

Manufacturer Recommendation / AEM Status

The provided user manual states that the Servo-i must receive regular service by professionals with specialized training and that all service must be recorded in a service log. It does not specify a calendar-based preventive maintenance interval, detailed service checklist, electrical-safety limits, or scheduled replacement interval for the cooling-fan filter.

Manufacturer-Listed Items Supported by This Manual

• Perform the complete Pre-Use Check before connecting the ventilator to a patient.
• Inspect the ventilator, gas hoses, power cord, patient circuit, accessories, and mobile cart.
• Verify air and oxygen supply.
• Verify AC operation and transfer between AC and battery power.
• Confirm that at least two serviceable battery modules are installed.
• Review battery status and displayed replacement instructions.
• Perform internal leakage, patient-circuit leakage, pressure-transducer, flow-transducer, O₂ cell or sensor, safety-valve, battery-switch, and internal audio tests through the automated Pre-Use Check.
• Test the external alarm output when that option is installed.
• Record all service in accordance with facility procedures.

Manufacturer-Listed Frequencies and Intervals

• Complete Pre-Use Check: Before connecting the ventilator to a patient.
• Regular professional service: Required at regular intervals, but the interval is not specified in the provided user manual.
• Battery-module lifetime: 2.5 years from manufacture date.
• Battery recharge time: Approximately 3 hours.
• Disconnected battery storage: Maximum one week under the listed storage conditions.
• O₂ cell replacement interval: Not specified in the provided manual.
• Cooling-fan filter replacement interval: Not specified in the provided manual.
• Electrical safety inspection interval: Not specified in the provided manual.

Battery modules displaying Replace battery must be replaced immediately. A module displaying Expires soon should be scheduled for replacement even when the status display still indicates usable operating time.

AEM Note

This procedure uses the manufacturer-listed operational checks available in the user manual but is not a substitute for the Getinge or MAQUET Servo-i service manual, service-card procedures, or official preventive-maintenance checklist.

If a facility performs this PM at a different interval or changes the listed activities, that should be handled under the facility’s approved AEM program, risk assessment, maintenance history, and applicable regulatory requirements.

What This PM Procedure Covers

• External condition and configuration inspection
• Power cord, battery, and power-transfer checks
• Gas hose and supply inspection
• Complete automated Pre-Use Check
• Internal and patient-circuit leakage testing
• Pressure, flow, O₂, safety-valve, and audio verification
• Alarm and control checks
• Optional external alarm-output test
• Electrical-safety documentation
• Final operational and service-record documentation

Required Tools and Equipment

• Known-good AC power source
• Medical air supply
• Medical oxygen supply
• MAQUET blue test tube
• Complete compatible patient breathing circuit
• Test lung
• Compatible expiratory cassette
• Approved electrical safety analyzer, when required by facility policy
• External oxygen analyzer, when required by facility policy or service procedure
• Gas-pressure test equipment, when supply pressure requires independent verification
• Approved cleaning supplies
• External alarm interface or nurse-call test connection, when installed

The manual specifically identifies the MAQUET blue test tube for the internal Pre-Use Check. It does not provide a complete PM test-equipment list.

Step-by-Step PM Procedure

1. Remove the Ventilator From Clinical Use

Confirm that the Servo-i is not connected to a patient.

Expected outcome: The ventilator is available for controlled inspection and testing without affecting patient care.

2. Review Service History and Configuration

Review:

• Previous PM and repair history
• Recurring alarms or Pre-Use Check failures
• Battery manufacture dates
• Battery replacement history
• O₂ cell history
• Expiratory cassette history
• Installed accessories and options
• Previous electrical-safety results

Identify whether the unit is configured as Servo-i Infant, Adult, or Universal.

Expected outcome: Known recurring conditions and configuration-dependent requirements are identified before testing.

3. Perform an External Visual Inspection

Inspect the complete system for:

• Cracked, loose, missing, or damaged covers
• Damaged user interface or touchscreen
• Loose rotary controls or fixed keys
• Damaged cart, wheels, brakes, handles, or mounting hardware
• Damaged module compartments or exposed connector pins
• Signs of liquid intrusion, corrosion, overheating, or contamination
• Missing labels or an unreadable serial number
• Damaged inspiratory or expiratory connections
• Damaged accessory connectors
• Obstructed cooling openings or cooling-fan filter
• Damaged gas-cylinder mounts or straps, when installed

Unused module compartments should contain the appropriate empty module to protect the electrical contacts from dust and fluid exposure.

Expected outcome: The ventilator is structurally complete, stable, clean, and free of conditions that could affect safe operation.

4. Inspect the Power Cord and AC Inlet

Inspect:

• Plug blades and grounding pin
• Cord jacket
• Strain reliefs
• Equipment connector
• AC inlet
• Fuse-area condition
• Evidence of heat, arcing, discoloration, or looseness

Connect the ventilator to a known-good grounded AC outlet and confirm that the green AC power indicator operates.

Expected outcome: The power cord and inlet are undamaged, and the ventilator consistently recognizes AC power.

5. Inspect Air and Oxygen Hoses

Inspect both gas hoses and fittings for:

• Wear, cracking, cuts, or kinks
• Damaged connectors
• Contamination by oil, grease, or other combustible material
• Incorrect or crossed connections
• Loose fittings
• Evidence of leakage

Connect known-good medical air and oxygen supplies.

Expected outcome: Both gas supplies are connected correctly and remain stable without visible damage or leakage.

6. Inspect Battery Modules

Confirm:

• At least two battery modules are installed.
• Each module is fully seated and secured.
• Battery housings are not swollen, cracked, leaking, overheated, or damaged.
• Battery contacts and compartments are clean and undamaged.
• Manufacture dates are documented.

Access the Battery Status Window and record:

• Slot number
• Battery serial number
• Charge status
• Estimated operating time
• Any activity instruction

Replace a battery immediately when Replace battery is displayed. Plan replacement when Expires soon appears.

The manual lists battery-module lifetime as 2.5 years from manufacture date.

Expected outcome: At least two serviceable battery modules are recognized and do not display an unacceptable status instruction.

7. Inspect the Expiratory Cassette and Patient Connections

Inspect the expiratory cassette for:

• Correct installation
• Secure seating
• Contamination
• Excess liquid
• Cracks or physical damage
• Damaged seals or connection surfaces

Inspect the inspiratory outlet, expiratory inlet, viral or bacterial filter arrangement, patient circuit, humidifier connections, Y-piece, and optional accessories.

Expected outcome: The expiratory cassette and breathing-system connections are clean, dry, complete, and properly installed.

8. Start the Complete Pre-Use Check

Connect:

• AC power
• Medical air
• Medical oxygen

Power on the Servo-i and select Yes when prompted to begin the automatic Pre-Use Check. Follow all on-screen instructions.

Expected outcome: The automatic test sequence begins without technical-error alarms.

9. Complete the Internal Test Connection

Connect the MAQUET blue test tube between the inspiratory outlet and expiratory inlet when instructed. Do not substitute an unapproved test tube.

The automated sequence evaluates:

• Active technical alarms
• Barometric-pressure measurement
• Inspiratory and expiratory flow transducers
• Gas-supply pressure measurements
• Pressure transducers
• Internal leakage
• O₂ cell or O₂ sensor
• Safety valve
• Internal audio, memory, and safety-related hardware

Expected outcome: Each internal test reports Passed.

Manufacturer-listed internal leakage criterion:
Allowed internal leakage: ≤ 10 mL/min at 80 cmH₂O
Result =

10. Verify AC-to-Battery Transfer

When instructed:

• Disconnect the ventilator from AC power.
• Confirm automatic transfer to battery operation.
• Verify the expected battery-operation indication and alarm.
• Reconnect AC power when instructed.
• Confirm return to AC operation.

The manual indicates that the connected batteries must provide at least ten minutes of total remaining operation for the battery-switch test to pass.

Expected outcome: Ventilation power transfers between AC and batteries without interruption or unexpected shutdown.

11. Connect and Test the Patient Breathing System

Connect the complete breathing system, including installed accessories that will normally be used.

When instructed:

• Block the Y-piece or Y Sensor without introducing leakage.
• Follow the on-screen sequence.
• Allow the ventilator to measure patient-circuit leakage and circuit compliance.
• Select circuit-compliance compensation according to the intended setup and facility procedure.

When patient tubing is replaced, repeat the circuit test and compliance calculation.

Expected outcome: Patient circuit test passes and circuit compliance is measured successfully.

Manufacturer-listed patient-circuit leakage criterion:
Allowed patient-circuit leakage: ≤ 80 mL/min at 50 cmH₂O
Result =

12. Verify Pressure and Safety-Valve Testing

Confirm that the automated test successfully calibrates and checks the inspiratory and expiratory pressure transducers. Confirm that the safety-valve test passes.

Manufacturer-listed safety-valve setting:
Safety-valve opening pressure: 117 ± 3 cmH₂O during the Pre-Use Check adjustment or test
Result =

Expected outcome: Pressure-transducer and safety-valve tests report Passed.

13. Verify O₂ Cell or O₂ Sensor Test

Confirm that the automated test successfully evaluates the oxygen measurement system at 21% and 100% oxygen. Both air and oxygen must be available for this test.

Record:

• O₂ cell/sensor test = Passed / Failed
• Displayed replacement or status message =

An independent oxygen analyzer check may be added under facility policy, but the provided manual does not give a PM accuracy-test procedure or tolerance for comparison with an external analyzer.

Expected outcome: The O₂ cell or sensor passes calibration without instability or replacement messages.

14. Verify Flow Measurement and Expiratory Cassette Operation

Confirm that the Pre-Use Check:

• Checks the inspiratory flow transducers
• Calibrates and checks the expiratory flow transducer
• Recognizes the expiratory cassette
• Completes without flow-transducer or cassette errors

Expected outcome: Inspiratory and expiratory flow tests report Passed.

15. Verify Audible and Visual Alarms

Confirm:

• Internal audio test passes.
• Loudspeaker output is clear and audible.
• High-, medium-, and low-priority alarm indications are visible.
• Alarm indicator colors and messages display normally.
• Audio Pause functions normally.
• Alarm sound is not weak, distorted, or intermittent.

Generate appropriate non-clinical alarm conditions using the approved facility test setup.

Expected outcome: Audible and visual alarm indications are clear, consistent, and appropriate to the generated condition.

16. Test the External Alarm Output When Installed

When the Pre-Use Check displays the external alarm-output test:

• Select Yes.
• Follow the on-screen instructions.
• Confirm transfer of the applicable high- and medium-priority alarm signal to the connected external system.

The manual describes the external alarm as a nonguaranteed alarm connection and recommends establishing a Pre-Use Check routine for the application.

External alarm output installed = Yes / No
Test result =

Expected outcome: The external system receives the intended alarm output.

17. Check User Interface and Controls

Verify operation of:

• Touchscreen
• Main Rotary Dial
• Direct Access Knobs
• Fixed keys
• Standby/Start control
• Menu access
• Status window
• Alarm Profile
• Waveform display
• Measured-value display

Confirm that values can be selected, adjusted, confirmed, and canceled normally.

Expected outcome: All accessible controls respond consistently without dead areas, sticking, or unintended operation.

18. Complete Functional Ventilation Check

Connect an approved test lung.

Verify:

• Ventilation starts and stops normally.
• Pressure, flow, and volume waveforms appear.
• Measured respiratory values update.
• Selected mode and parameter controls function.
• Alarm limits can be reviewed.
• No unexplained technical errors, sounds, or pop-up messages appear.
• The ventilator remains stable on AC power.

Do not independently alter clinical configuration values beyond the approved test setup.

Expected outcome: The Servo-i ventilates the test lung consistently and displays stable measured values without unresolved alarms.

19. Confirm Final Pre-Use Check Status

Complete the test and press OK to log the Pre-Use Check.

Document the final status:

• Passed
• Failed
• Not completed
• Cancelled

A Failed result requires correction and repetition of the test. Do not return the unit to service with a persistent malfunction.

Expected outcome: Final Pre-Use Check status is Passed.

Electrical Safety Testing

The provided user manual classifies the Servo-i as Class I, Type B equipment and states that the power cord must be connected to a properly grounded AC outlet. It does not provide ground-resistance or leakage-current PM limits.

Complete electrical safety testing according to facility policy, the applicable Getinge service documentation, and the safety standard adopted by the facility.

Ground resistance measured in ohms, expected ≤ 0.5 Ω or facility/NFPA 99 criteria if different:
Result =

Touch/chassis leakage measured in microamps:
Facility limit used =
Result =
Pass / Fail =

Do not claim a manufacturer leakage-current limit from this user manual.

Pass / Fail Criteria

PM Pass Criteria

• External inspection acceptable
• Power cord, inlet, hoses, cart, connectors, and covers undamaged
• At least two acceptable battery modules installed
• No battery displays Replace battery
• AC-to-battery and battery-to-AC transfer successful
• Complete Pre-Use Check reports Passed
• Internal leakage ≤ 10 mL/min at 80 cmH₂O
• Patient-circuit leakage ≤ 80 mL/min at 50 cmH₂O
• Safety-valve test passes at the manufacturer-listed test setting
• O₂, pressure, flow, cassette, audio, and battery tests pass
• Controls, display, ventilation, and alarms function normally
• External alarm output passes when installed
• Electrical-safety results meet the facility’s adopted limits
• No unresolved technical errors or unfamiliar behavior

Remove From Service Criteria

Remove the Servo-i from service when:

• The complete Pre-Use Check fails repeatedly.
• A technical error or unresolved alarm remains.
• Internal or patient-circuit leakage exceeds the listed limit.
• The safety-valve, pressure, flow, O₂, audio, or battery-switch test fails.
• The ventilator loses power or ventilation during power transfer.
• A battery displays Replace battery and sufficient acceptable backup batteries are not available.
• Audible alarms are absent, weak, distorted, or intermittent.
• Controls are unreliable.
• Gas hoses, power components, covers, connectors, or the cart are unsafe.
• Electrical-safety testing fails.
• Unfamiliar sounds, pop-up windows, odors, overheating, or unexplained operation are present.

Use the manufacturer service manual, facility policy, and approved AEM program to determine the final PM interval and return-to-service requirements.