On this page
Asset Type
Manufacturer
Model
What This Guide Helps With
Troubleshoots delayed, incomplete, or inconsistent tissue-processing outcomes by checking cycle status, reagents, workflow, configuration, utilities, and equipment operation.
Step-by-Step Troubleshooting
1. Protect Specimens and Confirm Their Status
Immediately determine whether patient specimens are still inside the processor, whether processing completed, and whether laboratory staff consider the specimens adequately preserved.
Do not initiate another cycle or alter the current state until specimen status is understood.
Expected outcome: Specimens are accounted for and protected while the processing delay or inconsistency is investigated.
2. Define What Was Delayed, Missing, or Inconsistent
Determine whether the complaint refers to an unfinished processing cycle, unexpected processing time, missing cycle information, incomplete processing, inconsistent tissue quality, or a data/documentation issue.
Record the exact staff complaint and displayed status.
Expected outcome: The actual failure mode is clearly defined.
3. Review Cycle Status and Messages
Check normal user-accessible history, status information, and displayed messages for evidence of a pause, alarm, power interruption, reagent-transfer problem, fluidics condition, or other event associated with the affected run.
Expected outcome: Any event that explains the delay or incomplete process is identified.
4. Verify Power Continuity
Ask whether a facility power interruption, generator transfer, unplugging event, breaker operation, or other electrical disturbance occurred during the affected processing period.
Inspect the processor's external power connection.
Expected outcome: Power disruption is identified as a possible cause or ruled out.
5. Verify Reagent Configuration
With laboratory personnel, confirm that required reagents were available, correctly positioned, and appropriately represented in the system.
Inspect external containers and connections for obvious setup problems or leakage.
Expected outcome: The reagent configuration is correct or an external cause is identified.
6. Verify the Processing Program
Have authorized laboratory staff confirm that the intended processing program was selected and that the expected workflow was used.
Do not independently change clinical processing protocols as a troubleshooting experiment.
Expected outcome: Program selection is confirmed or a workflow discrepancy explains the event.
7. Inspect External Fluidics Conditions
Check accessible tubing, reagent connections, waste containers, and processing components for kinks, loose connections, improper seating, visible obstruction, or leakage.
Expected outcome: External fluidics conditions are normal or a correctable problem is found.
8. Check for Pattern or Recurrence
Determine whether the complaint occurred once, follows a particular program or reagent position, or has appeared across several processing runs.
Compare with prior normal operation and, when available, another verified processor.
Expected outcome: The event is identified as isolated or repeatable, helping separate workflow variation from a processor-related condition.
9. Perform Approved Functional Verification
With patient specimens removed from risk, perform appropriate approved operational checks based on the reported failure.
Verify normal startup, readiness, accessible fluidics behavior, and absence of recurring warnings.
Expected outcome: The processor demonstrates reliable operation without reproducing the reported condition.
10. Confirm Laboratory Acceptance Before Return to Service
If the problem involved actual tissue-processing quality, laboratory personnel must complete whatever specimen-quality or workflow verification is required before normal clinical use resumes.
Clinical Engineering verification of equipment operation does not replace laboratory acceptance of processing quality.
Expected outcome: Equipment operation is verified and the laboratory accepts the processor for clinical workflow. Troubleshooting can stop.
If the Problem Persists
If cycle status, power continuity, reagents, processing-program selection, accessible fluidics, connections, workflow, and recent events have been checked and the problem remains unexplained or repeatable, common external causes have been ruled out.
Remaining categories may include internal fluid-transfer systems, temperature or pressure control, sensing, software, timing control, internal communications, memory or data handling, or another service-level problem.
The device should be:
- Removed from service.
- Labeled Out of Service.
- Sent for repair or qualified service evaluation.
- Evaluated using appropriate Sakura Finetek documentation and approved test equipment.
- Repaired or configured only by qualified personnel.
Do not return the processor to use when processing reliability is uncertain merely because it currently appears ready. Complete applicable operational verification and obtain appropriate laboratory acceptance before return to service.
Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
When processing appears incomplete or inconsistent, preserve the cycle history and involve laboratory staff before restarting or changing anything that could obscure what happened.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Laboratory staff reported that a tissue-processing cycle took longer than expected and did not progress normally."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found an improperly seated external reagent connection associated with the affected processing setup."
Resolution
What action was taken.
Example:
"The connection was correctly secured, approved processor operation was verified without further faults, laboratory staff confirmed the processing setup, and the unit was returned to service."
Helpful Details to Include (If Known)
- Exact staff complaint
- Specimen status
- Processing program involved
- Cycle stage when the problem occurred
- Displayed messages or history
- Power interruptions
- Reagent configuration
- Tubing and connection condition
- Whether the problem is repeatable
- Comparison with another processor
- Functional verification results
- Laboratory acceptance
- Final device status
Final Thought
Protect specimens first, reconstruct the processing event logically, verify power, reagents, workflow, and accessible fluidics before assuming internal failure, and escalate repeatable unexplained problems with complete documentation.
That is successful troubleshooting.