Medtronic HMS PLUS
Medtronic · Model HMS PLUS
Stand alone software. Easy download of data. Documentation for billing and reimbursement. QC and patient data management including pre-formatted reports.
Key tips
- ·When no category-specific guidance fits, default to the manufacturer's own service manual and the general troubleshooting method in the Engineer's Guide.
- ·Run an incoming and annual electrical safety test regardless of how niche the device is.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Heparin / protamine assay results drift
HighSymptoms: HDR (heparin dose response) or protamine-titration results implausible, poor duplicate agreement.
Root cause: Test-cartridge channel fault, test-well temperature out of range, or a plunger / clot-detection fault.
Temperature alert / will not reach set point
MediumSymptoms: Temperature alert, tests will not start.
Root cause: Test-well heater or temperature-sensor fault.
Error message stops the test
MediumSymptoms: Error / alert message on the display.
Root cause: A subsystem fault - refer to the operator's manual error list.
Printer / data-output fault
LowSymptoms: No printed report or data export.
Root cause: Printer paper / head or the output port.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Test-well heater / temperature sensor
Class Major service partRel. cost $$R&R Moderate
Plunger / clot-detection assembly
Class Major service partRel. cost $$$R&R Difficult
Disposable HMS test cartridges
Class Frequent wear itemRel. cost $$R&R Easy
Printer paper / print head
Class Periodic replacementRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Test-well heater / temperature sensor | Major service part | $$ | Moderate |
| Plunger / clot-detection assembly | Major service part | $$$ | Difficult |
| Disposable HMS test cartridges | Frequent wear item | $$ | Easy |
| Printer paper / print head | Periodic replacement | $ | Fairly easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Follow the manufacturer's PM schedule
- ·Perform incoming and annual electrical safety testing per facility biomedical program
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Assay results drift
- Confirm the test wells are at temperature and stable.
- Run the manufacturer's verification / QC.
- Check the plunger and clot detection move freely in each channel.
- Verify cartridges are in date and correctly stored.
- Refer for service if verification still fails.
Symptom: Error or temperature alert
- Note the message.
- Power-cycle the instrument.
- Check the test-well heater and sensor.
- Follow the operator's manual action for the message.
- Contact Medtronic Technical Service if it persists.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Varies by device - check the unit's own manual for facility placement guidance
Documents & Manuals
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Describe a symptom or error code. Bio answers from this device's own documented error codes, failure modes, parts, and guides.
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