Stryker InTouch

Asset Type

Hospital Bed

Manufacturer

Stryker

Model

InTouch

Manual Reference

InTouch Critical Care Bed Maintenance Manual, 2141-009-002 REV A, dated 2012/06.

Manufacturer Recommendation / AEM Status

Stryker recommends checking the preventive maintenance items annually and states that preventive maintenance should be performed at least once a year to ensure all bed features function properly.

Manufacturer-Listed Battery Replacement

Replace both main batteries every two years.

Main battery part number: QDF9188.

Replace both batteries at the same time.

Replace the batteries immediately if the terminals are corroded, the cases are cracked, expanded, or bulging, or the batteries no longer maintain a full charge.

Manufacturer-Listed Electrical Safety Limits

Ground impedance: Not more than 100 milliohms, equivalent to 0.10 Ω.

Current leakage: Not more than 300 microamps.

Calibration and AEM Note

The manual does not list a separate recurring interval for scale calibration, bed calibration, or touchscreen calibration. The annual checklist requires verification that these systems are accurate and operating properly.

If a facility performs this PM at a different interval or changes the listed activities, the changes should be managed through the facility’s approved alternative equipment maintenance program, risk assessment, maintenance history, and applicable regulatory requirements.

What This PM Procedure Covers

• Mechanical and structural inspection
• Brake, caster, siderail, and CPR checks
• Bed motion and control-panel operation
• Scale and Bed Exit operation
• Angle-display accuracy
• Electrical safety testing
• Main battery inspection and replacement status
• Optional Zoom drive and iBed functions
• Final operational and return-to-service evaluation

Required Tools and Equipment

• Electrical safety analyzer
• Digital level or inclinometer
• Basic hand tools for tightening accessible fasteners
• Inspection light
• Known test weight or facility-approved method for checking scale operation, when required by facility policy
• Cleaning supplies approved for the bed
• Replacement batteries, QDF9188, when due or defective

The manual specifically uses a digital level or inclinometer during bed calibration. Do not zero or calibrate the inclinometer after placing it on the bed frame during the calibration procedure.

Step-by-Step PM Procedure

1. Identify and Prepare the Bed

Action:

• Confirm the bed is an InTouch FL27, Model 2131 or 2141.
• Record the serial number and installed options.
• Remove the patient and clinical equipment before testing.
• Position the bed on a level surface.
• Plug the bed into a properly grounded hospital-grade receptacle.
• Turn the battery power switch on.
• Apply the brakes before working around or beneath the bed.

Expected outcome: The bed is correctly identified, stable, powered, and safe for inspection.

2. Inspect the Frame and Hardware

Action:

• Inspect the bed frame, litter, welds, fasteners, covers, and mounting hardware.
• Verify all accessible fasteners are secure.
• Inspect for bent, loose, cracked, worn, or corroded components.
• Inspect the headboard and footboard for cracks or splits.
• Verify the headboard and footboard seat securely.

Expected outcome: No structural damage, loose hardware, or damaged boards are present.

Remove from service when: Structural damage, cracked load-bearing components, loose critical hardware, or unsafe deformation is found.

3. Inspect the Mattress and Retainers

Action:

• Inspect the mattress cover for rips, cracks, punctures, damaged seams, or evidence of fluid intrusion.
• Verify the mattress retainers and tie-downs are secure.
• Verify the mattress is appropriate for the bed configuration.

Expected outcome: The mattress surface is intact and remains properly secured to the bed.

Remove from service when: The mattress cover is damaged in a way that may allow fluid entry.

4. Check Casters, Brakes, and Steering

Action:

• Inspect each caster for damage, excessive wear, debris, looseness, and smooth rotation.
• Engage the brake pedal or electric brake.
• Push and pull the bed to verify all casters lock securely.
• Release the brake and verify the bed rolls freely.
• Confirm the “Brake Not Set” indicators illuminate when the brakes are released.
• For Model 2131, verify the locking steer caster engages and disengages properly.
• Inspect the manual backup brake and verify proper operation.

Expected outcome: The bed remains stationary with the brakes applied and rolls and steers normally with the brakes released.

5. Inspect Ground Chains

Action:

• Inspect the ground chains for damage, contamination, missing links, or improper mounting.
• Clean the chains as needed.
• Confirm at least two links touch the floor.

Expected outcome: Ground chains are clean, intact, securely mounted, and contact the floor.

6. Inspect Siderails

Action:

• Raise and lower each siderail.
• Verify each rail moves smoothly, stows properly, and locks securely in the raised position.
• Pull firmly on each raised rail to confirm the latch is engaged.
• Inspect siderail mechanisms, release levers, covers, and mounting points.
• Verify siderail-position switches operate correctly when the iBed Awareness option is installed.

Expected outcome: Each siderail moves normally and positively locks without excessive play.

Remove from service when: A siderail does not lock securely, releases unexpectedly, or has structural damage.

7. Check CPR Operation

Action:

• Raise the Fowler section.
• Activate each CPR emergency release pedal.
• Confirm the Fowler lowers toward the flat position while the pedal is depressed.
• Confirm the knee gatch begins flattening after the Fowler reaches the lowered position.
• Release the CPR pedal and verify motion stops as designed.
• Allow approximately 30 seconds for the Fowler motor to reset, then verify powered Fowler operation.

Expected outcome: The emergency CPR release lowers the bed correctly and normal powered operation returns afterward.

8. Check Bed Motion Functions

Action:

Operate the bed through its normal range using the siderail and footboard controls:

• Bed height up and down
• Fowler up and down
• Gatch up and down
• Foot section up and down
• Trendelenburg
• Reverse Trendelenburg
• Cardiac chair or other programmed positions, when installed
• HOB 30-degree function
• Vascular position, when installed

Listen for abnormal noise and watch for binding, hesitation, unintended movement, cable interference, or motor-overload messages.

Expected outcome: All sections move smoothly, stop correctly, and respond from each applicable control panel.

9. Check Control Panels and Indicators

Action:

• Test every applicable button on both head-end siderail control panels.
• Test every applicable footboard control.
• Verify indicator LEDs illuminate correctly.
• Inspect the footboard control labeling for wear or degradation.
• Verify the touchscreen responds accurately across the display.
• Confirm the night light operates.

Expected outcome: Controls respond consistently, indicators match the selected bed state, and the touchscreen is accurately aligned.

10. Check Scale and Bed Exit Systems

Action:

• Zero the scale following the normal operating procedure.
• Apply a known weight or use the facility-approved scale verification method.
• Verify the displayed weight is reasonable and stable.
• Confirm the Bed Exit system arms, changes sensitivity levels, detects movement or removal of weight, and produces the expected alarm.
• Confirm no scale, load-cell, or excessive-inclination errors appear.

Expected outcome: The scale and Bed Exit systems operate normally without errors.

Manufacturer-listed scale accuracy:

• For 100 to 550 lb: ±2%, flat or in Trendelenburg or reverse Trendelenburg
• For weights under 100 lb: ±2 lb

11. Verify Angle Accuracy

Use a digital level or inclinometer to compare the actual bed-section angle with the displayed angle.

Manufacturer-listed ranges:

• Fowler: 0° to 70°
• Gatch: 0° to 15°
• Foot section: 0° to 50°
• Trendelenburg and reverse Trendelenburg: up to 12°

Action:

• Place the inclinometer securely on the applicable bed section.
• Compare the physical angle to the value displayed by the bed.
• Return the litter to level and verify the display reads zero.
• Raise and lower the bed and confirm the angle readings remain stable.

Expected outcome: Displayed angles correspond with the physical position and remain stable throughout bed-height movement.

Calibration mode is not necessary during every PM when the readings are accurate. Perform bed calibration only when verification fails or after applicable repairs.

12. Check Main Batteries

Action:

• Review the battery installation or replacement history.
• Verify both batteries are replaced every two years.
• Inspect both batteries and terminals for corrosion, cracked cases, bulging, expansion, loose connections, leakage, or inability to maintain a charge.
• Disconnect AC power and verify essential bed functions operate from battery power.
• Restore AC power and verify the charging indication appears.

Expected outcome: The batteries are within the two-year interval, undamaged, securely connected, and able to support normal battery-powered operation.

Replacement battery: QDF9188.

Replacement requirement: Replace both batteries together.

13. Check Power Cord, Wiring, and Grounding

Action:

• Inspect the power cord and plug for cuts, fraying, crushed sections, exposed conductors, loose strain relief, bent blades, or heat damage.
• Inspect visible cables for wear, pinching, abrasion, and improper routing.
• Verify accessible electrical connections are secure.
• Verify protective-earth connections are secure to the frame.
• Inspect optional auxiliary outlets, when installed.

Expected outcome: The power cord, wiring, connections, and grounding hardware are intact and secure.

Remove from service when: The power cord is damaged or any exposed conductor, loose protective-earth connection, burned connection, or shock hazard is found.

14. Check Optional Zoom Drive — Model 2141

Action:

• Engage the Zoom drive wheel and verify it lowers and engages.
• Operate the drive forward and backward in a clear area.
• Verify the motion-release switches on both handles.
• Verify the head-end Zoom handles function correctly.
• Confirm the bed returns to neutral and can be pushed manually.
• Check for abnormal noise, uncontrolled movement, drive timeout, or motor-overload errors.

Expected outcome: The Zoom drive engages, moves, releases, and returns to neutral correctly.

15. Check Optional iBed Awareness Functions

Action:

• Verify siderail-position switches operate correctly.
• Verify iBed Awareness light-bar LEDs on the footboard and siderails.
• Confirm the displayed bed-status conditions agree with the actual brake, rail, bed-height, and Bed Exit conditions.

Expected outcome: The iBed status display and light bars correctly indicate the physical bed configuration.

16. Review Maintenance Diagnostics

Action:

• Access the maintenance configuration screen when needed.
• Review stored error codes.
• Check connected boards, input states, motors, buttons, and signal values when a concern is found.
• Confirm there are no unresolved maintenance errors or “Call Maintenance” indications.

Expected outcome: No active or unresolved condition remains that could affect safe operation.

17. Final Functional Check

Action:

• Reinstall all covers, boards, and accessories.
• Confirm the brakes, siderails, CPR function, controls, scale, Bed Exit, bed motions, and optional systems remain functional.
• Return the litter to a level, low position.
• Confirm the power cord and all cables are routed safely.
• Clean the bed as needed and dry it thoroughly.

Expected outcome: The bed is complete, clean, correctly assembled, and ready for clinical use.

Electrical Safety Testing

The InTouch is Class I, Type B equipment. Perform testing with the bed connected and configured according to the electrical safety analyzer instructions and facility procedure.

Protective Earth / Ground Impedance

Manufacturer-listed limit: Not more than 100 milliohms, equivalent to 0.10 Ω.

Ground resistance measured in ohms, expected ≤ 0.10 Ω per the manufacturer:

Result =

Pass / Fail =

The manufacturer limit is more restrictive than the commonly used 0.5 Ω facility threshold and should be used unless an approved facility policy or AEM determination establishes otherwise.

Leakage Current

Manufacturer-listed limit: Not more than 300 microamps.

Touch/chassis leakage measured in microamps:

Facility limit used = 300 µA manufacturer limit

Result =

Pass / Fail =

Document the analyzer mode and test conditions according to facility electrical safety procedures.

Pass / Fail Criteria

Pass

The bed passes when:

• Annual manufacturer-listed checks are completed.
• Mechanical and structural components are secure and undamaged.
• Brakes, casters, siderails, and CPR release operate correctly.
• All applicable controls, indicators, and motions function normally.
• Scale, Bed Exit, touchscreen, and angle readings operate accurately.
• Batteries are serviceable and within the two-year replacement interval.
• Ground impedance is no more than 0.10 Ω.
• Leakage current is no more than 300 µA.
• No unresolved maintenance errors or unsafe conditions remain.

Remove From Service

Remove the bed from service when:

• The power cord or protective-earth system is damaged.
• Ground impedance or leakage exceeds the manufacturer-listed limit.
• A siderail does not lock securely.
• The brakes do not hold the bed.
• The CPR release does not operate correctly.
• Uncommanded or uncontrolled motion occurs.
• Structural damage or loose critical hardware is found.
• Batteries are cracked, bulging, corroded, leaking, or unable to hold a charge.
• The mattress cover is damaged and may allow fluid intrusion.
• A critical control, actuator, scale, Bed Exit, or safety function fails.
• The bed has an unresolved maintenance error affecting safe operation.

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