Physio-Control LIFEPAK 12

Preventive Maintenance Procedure

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Asset Type

Defibrillator

Manufacturer

Physio-Control

Model

LIFEPAK 12

Manual Reference

LIFEPAK 12 Defibrillator/Monitor Series Service Manual, PN 3010013-015, © 1998–2001 Medtronic Physio-Control Corp.

Manufacturer Recommendation / AEM Status

Manufacturer-Listed PM Frequency

The manufacturer-listed maintenance schedule includes:

The factory-default maintenance-prompt interval is 12 months. The service menu permits the prompt to be set to Off, 3 months, 6 months, or 12 months. Reset the maintenance-prompt counter after scheduled maintenance is completed.

The manufacturer-listed Performance Inspection Procedure is a complete closed-case safety and performance inspection. Perform all tests applicable to the installed device configuration from start to finish in the order presented in the service manual.

Manufacturer-Listed Replacement Intervals

The manual also gives the following approximate battery useful lives under proper maintenance:

These are useful-life estimates, not unconditional replacement intervals. Remove batteries from use for physical damage, leakage, failed conditioning, unacceptable runtime, or a Battery Support System 2 DISCARD result.

Post-Repair Safety Inspection

Complete the applicable Performance Inspection Procedure after any repair, component replacement, or calibration procedure. A device that has been dropped, damaged, or abused should be inspected by a qualified technician to verify performance and acceptable leakage-current values before return to service.

AEM Note

If the facility performs this PM at a different interval or changes the manufacturer-listed activities, document the change under the facility’s approved AEM program, risk assessment, maintenance history, and applicable regulatory requirements.

What This PM Procedure Covers

Required Tools and Equipment

Use calibrated test equipment meeting the specifications in the service manual. Equivalent equipment may be substituted when it meets the manufacturer-listed requirements.

All test equipment used for the Performance Inspection Procedure should have current calibration identification from a certified calibration facility.

Step-by-Step PM Procedure

1. Review Device Configuration and Maintenance History

Action: Identify and document:

Preserve or print the device setup configuration before making changes. Configuration restoration between devices requires matching software revisions. Verify default-energy settings when transferring configurations between different waveform versions.

Expected outcome: The test plan includes every installed option, and the clinical setup configuration is protected.

2. Remove the Device from Clinical Use

Action: Remove the LIFEPAK 12 from patient-care availability and provide an approved replacement defibrillator before beginning testing.

Confirm that no patient is connected and that defibrillation energy will be discharged only into a rated analyzer or test load.

Expected outcome: The device can be tested without interrupting emergency-response readiness or creating a shock hazard.

3. Exterior Physical Inspection

Action: Inspect the device for:

Lift and rotate the device while listening for loose hardware.

Expected outcome: No physical condition exists that could affect safe operation, cleaning, battery contact, accessory connection, or mechanical integrity.

Remove from service when: The case is cracked, fluid intrusion is suspected, battery pins are unreliable, a therapy or patient connector is damaged, loose internal hardware is heard, or a dropped or abused device has not completed the applicable Performance Inspection Procedure.

4. Inspect Accessories and Consumables

Action: Inspect all accessories assigned to the device, including:

Check for cracks, cuts, kinks, exposed conductors, contamination, loose connections, damaged paddle surfaces, missing controls, incorrect accessories, and expired consumables. Check ECG cable age against the manufacturer-listed 2-year replacement interval.

Expected outcome: All accessories are intact, compatible, within expiration, and suitable for clinical use.

5. Clean the Device

Action: Clean the exterior using manufacturer-approved methods and cleaning agents.

Do not immerse the device or allow liquid to enter connectors, battery wells, printer components, or case openings. Perform interior inspection and cleaning only by qualified personnel following the service-manual disassembly, high-voltage discharge, and ESD precautions.

Expected outcome: The device is visibly clean and free from material that could interfere with operation, connectors, printer movement, or cooling.

6. Install Test Accessories

Action:

A functional battery should not immediately generate a LOW BATTERY message when the device is powered on.

Expected outcome: The test setup is secure and appropriate for the device configuration.

7. Power-On Self-Test

Action: Turn on the device and verify:

Record the software revision.

Expected outcome: The device completes startup without a fault, service indication, abnormal reset, or display/audio failure.

8. Record Service Data and Error History

Action: Enter Service Mode and review:

Do not clear error logs or counters unless permitted by facility policy and adequately documented. Investigate active, recurring, or unexplained service errors before continuing.

Expected outcome: No unresolved service code or operating-history condition indicates an unsafe or unreliable device.

9. Controls, Selector, Indicators, and Display

Action: Use the Service Mode button test to:

Expected outcome: Every installed control responds correctly, and the display is complete and readable.

10. Printer Test

Action: Run the Service Mode printer test and verify:

Expected outcome: The printer produces a complete, properly scaled, legible test strip without missing dots or feed problems.

11. Speaker, Voice Prompt, and Alarm Test

Action: Run the Service Mode voice/tone test and verify:

A full playback of every voice prompt is not necessary after clear, undistorted operation has been established unless facility policy requires it.

Expected outcome: Audio and visual notification functions are clearly recognizable and reliable.

12. Battery and Power-Source Management

Action: With both batteries installed and the device operating:

For the manufacturer-listed auxiliary-power charge test, remove both batteries, power the unit from the AC adapter, select 360 J, initiate charging, and verify the charge cycle is 10 seconds or less.

Expected outcome: The device transfers between batteries and auxiliary power without shutdown or abnormal indication and charges to 360 J on auxiliary power within the manufacturer-listed time.

13. ECG Monitoring and Leads-Off Detection

Action: Perform the applicable 3-lead or 12-lead Performance Inspection Procedure tests.

For a 3-lead device:

For a 12-lead device:

For ECG gain verification with a 1 mV, 10 Hz sine wave and ECG size 4.0:

Expected outcome: ECG rate, waveform, lead selection, leads-off detection, acquisition, and printed gain meet the applicable manufacturer criteria.

14. Therapy-Cable or Paddle Impedance Detection

Action: Perform the applicable QUIK-COMBO impedance-sense or standard-paddle connection tests from the Performance Inspection Procedure.

Expected outcome: The device correctly recognizes the therapy accessory and detects an open or disconnected patient circuit.

15. Manual Defibrillation Performance

Action: Using the defibrillator analyzer:

Use the exact delivered-energy tolerances listed in the applicable monophasic or biphasic Performance Inspection Procedure. Do not apply one waveform configuration’s limits to another.

Expected outcome: Delivered energy and charge time meet the configuration-specific manufacturer limits, with no unintended discharge or failure to dump stored energy.

16. Synchronized Cardioversion

Action: Apply a simulated ECG signal and enable SYNC.

Expected outcome: The device recognizes QRS complexes and delivers synchronized energy correctly.

17. AED and Shock Advisory Operation

Action: Enter Advisory/AED mode and apply the analyzer rhythms required by the Performance Inspection Procedure.

Expected outcome: The Shock Advisory System responds correctly to simulated rhythms and does not recommend or enable therapy inappropriately.

18. Noninvasive Pacing — When Installed

Action: Using the defibrillator analyzer:

For devices without the pacing option, perform the manufacturer-listed no-pacer characteristic or self-calibration check.

Expected outcome: Pacing rate, output current, pulse width, leads-off detection, and operating mode meet the applicable manufacturer criteria.

19. ECG Analog Output — When Used

Action: Connect the manufacturer-listed analog ECG output cable to the system connector and verify the output waveform using the applicable Performance Inspection Procedure setup.

Expected outcome: The analog ECG output is present, correctly scaled, and free from abnormal distortion.

20. SpO₂ Verification — When Installed

Action: Using the applicable sensor or simulator:

Expected outcome: The SpO₂ option detects the sensor, displays the test value, responds to disconnection, and meets applicable electrical-safety limits.

21. NIBP Verification — When Installed

Action: Using a calibrated pressure simulator or pressure/vacuum meter:

Expected outcome: NIBP pressure measurement, leakage, deflation, and safety protection meet the manufacturer criteria.

22. EtCO₂ Verification — When Installed

Action: Using the manufacturer-listed calibration equipment and 5% CO₂ calibration gas:

Expected outcome: The CO₂ option passes leak and calibration verification and correctly displays the applied test gas.

23. Invasive-Pressure Verification — When Installed

Action: Connect the invasive-pressure simulator and verify:

Expected outcome: Each installed invasive-pressure channel zeros, measures, and alarms correctly.

24. Complete Annual Calibration Procedures

Action: At the manufacturer-listed 12-month interval, complete all applicable Test and Calibration Procedures for the installed configuration, including:

Do not adjust a subsystem solely because a test value appears unusual unless the applicable Performance Inspection Procedure or Test and Calibration Procedure indicates an out-of-tolerance result.

Expected outcome: Every installed subsystem completes the applicable calibration procedure without an error or out-of-tolerance condition.

25. Check Manufacturer-Listed Replacement Items

Action: Verify replacement dates and replace items when due:

Evaluate each rechargeable battery through the appropriate Battery Support System maintenance process. Remove batteries with case damage, leakage, failed conditioning, failed shelf-life testing, a BSS 2 DISCARD indication, unacceptable clinical runtime, or unreliable connection or status indication.

Expected outcome: Definite-life components are within the manufacturer-listed interval, and batteries remain serviceable.

26. Reset Maintenance Prompt and Restore Configuration

Action: After all maintenance and testing pass:

Expected outcome: The approved configuration is restored, the next maintenance date is correct, and no unresolved service condition remains.

27. Final Operational Check

Action: Perform a final user-level check with the device fully assembled:

Expected outcome: The complete device and assigned accessories are ready for clinical service.

Electrical Safety Testing

The manufacturer Performance Inspection Procedure includes configuration-specific leakage-current testing for the LIFEPAK 12, patient connections, therapy connections, installed options, and AC power adapter. Follow the exact manufacturer test setup and electrical conditions rather than substituting one generic leakage measurement.

Ground Resistance

A specific general device ground-resistance limit was not identified in the provided LIFEPAK 12 service-manual PM schedule. When the AC power adapter or facility electrical-safety program requires a protective-earth measurement, document the facility criterion separately.

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

Result =

The ≤ 0.5 Ω field is a facility/NFPA 99 documentation convention, not a LIFEPAK 12 manufacturer-listed limit in the reviewed manual.

Touch/Chassis Leakage

Touch/chassis leakage measured in microamps:

Facility limit used =

Result =

Pass / Fail =

Manufacturer-Listed Leakage Tests

Complete every applicable Performance Inspection Procedure leakage test, including:

Manufacturer-listed examples include:

These limits apply only to their exact manufacturer test setups and electrical conditions. They are not interchangeable with generic chassis-leakage limits.

Document each applicable measurement:

Test configuration =

Manufacturer limit =

Measured result =

Pass / Fail =

Pass / Fail Criteria

Pass

The LIFEPAK 12 passes PM when:

Remove From Service

Remove the device from service when:

Copy/Paste CMMS Work Order Procedure

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

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