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Asset Type
Surgical Fluid Management System
Manufacturer
Model
What This Guide Helps With
Use when the Neptune reports a filter-related condition, will not recognize a filter, or indicates a filter is improperly installed or unavailable.
Step-by-Step Troubleshooting
1. Protect the Patient and Stop Reliance on Affected Functions
If a filter-related condition prevents reliable smoke evacuation or another required clinical function, establish an alternate verified method before troubleshooting.
Do not bypass the filter or operate the system in a configuration that defeats intended filtration.
Expected outcome: Clinical care continues without relying on a Neptune that cannot verify required filtration.
2. Confirm the Exact Filter Condition
Record the displayed filter message or indicator exactly as shown. Determine whether the problem involves installation, recognition, remaining filter life, or failure immediately after filter replacement.
Expected outcome: The reported condition is clearly identified. If the issue is simply an expected end-of-life indication for the installed filter, follow approved replacement practices.
3. Verify the Correct Filter Is Installed
Confirm the installed filter is intended for the specific Neptune configuration and application.
Do not modify, adapt, or substitute an unapproved filter.
Expected outcome: The installed filter is compatible with the system. If an incorrect filter was installed, replace it with an approved compatible filter and retest.
4. Inspect the Filter Externally
Remove the filter using appropriate precautions and inspect it for:
- Physical damage
- Deformation
- Wetness or contamination
- Obstructed surfaces
- Damaged mounting features
- Packaging material left in place
Replace a damaged or contaminated filter.
Expected outcome: The filter is intact and suitable for installation.
5. Inspect and Clean the Filter Interface
Inspect the accessible filter compartment and mating surfaces for debris, fluid contamination, or anything preventing complete seating.
Clean only accessible external surfaces using approved methods.
Expected outcome: The filter interface is clean and unobstructed, allowing full installation.
6. Reinstall the Filter Fully
Reinstall the filter without forcing it. Confirm that it seats completely and that any accessible retention mechanism engages normally.
Observe whether the Neptune recognizes the filter after installation.
Expected outcome: The filter is accepted and the filter-related warning clears when appropriate. If recognition is stable, proceed to functional verification.
7. Test With a Known-Good Compatible Filter
When appropriate and available, install a known-good compatible filter to distinguish a filter problem from a device-side recognition problem.
Expected outcome: The known-good filter is recognized normally. If so, remove the original filter from use and verify the associated system function.
8. Verify Filter Status Without Altering Restricted Settings
Check normal user-accessible filter status information and confirm the system reports an expected condition after replacement or reseating.
Do not reset filter data using unauthorized service procedures or bypass life tracking.
Expected outcome: Filter status is displayed normally and no inappropriate recognition warning remains.
9. Perform Functional Verification
Test the affected function, such as smoke evacuation, in an appropriate nonclinical configuration.
Confirm stable operation and no recurring filter warning.
Expected outcome: The filter remains recognized and the associated function performs normally. Troubleshooting can stop.
10. Escalate Persistent Filter Recognition Problems
If multiple compatible filters are not recognized, the compartment is damaged, or the filter warning returns despite correct installation, stop external troubleshooting.
Expected outcome: The Neptune is removed from service for qualified evaluation of the filter-recognition or associated control system.
If the Problem Persists
Common external causes such as incorrect filter type, poor seating, contamination, damaged filters, and an obstructed filter interface have been ruled out.
The remaining issue may involve internal filter-recognition sensing, airflow monitoring, configuration, internal connections, or another service-level problem.
The device should be:
- Removed from service.
- Labeled Out of Service.
- Sent for repair or bench evaluation.
- Evaluated using appropriate Stryker documentation and approved test equipment.
- Repaired or configured only by qualified personnel.
After service, verify filter recognition and all affected operating functions before returning the device to clinical use. Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
Never bypass or defeat filter-recognition or filtration features simply to restore smoke evacuation during a procedure.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"OR staff reported that the Neptune continued to show a filter installation problem after a filter change."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found that the replacement filter was not fully seated in the filter compartment."
Resolution
What action was taken.
Example:
"Removed and correctly reinstalled the filter, verified normal recognition and smoke-evacuation operation, and returned the unit to service."
Helpful Details to Include (If Known)
- Exact filter message or indicator
- Filter type installed
- Whether the filter was recently replaced
- Filter physical condition
- Filter compartment condition
- Recognition result after reseating
- Known-good filter test result
- Associated smoke-evacuation behavior
- Results before and after correction
- Final device status
Final Thought
Verify filter compatibility, condition, seating, and recognition before assuming a device fault. Required filtration should never be bypassed. Persistent recognition problems warrant removal from service, proper escalation, and complete documentation.
That is successful troubleshooting.