Medtronic Sequestra 1000
Medtronic · Model Sequestra 1000
Autotransfusion System MEDTRONICS BIOMEDICUS SEQUESTRA 1000 AUTOTRANSFUSION SYSTEM is a self contained, intraoperative, whole blood autotransfusion system that allows simple, effective collection, cleansing & infusion of a patient's own blood, eliminating the waiting for typing, cross matching or testing & minimizing the use of banked blood subsequently reducing concern about transmission of blood born diseases like (AIDS, hepatitis), transfusion reactions & alloimunization.
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.
Roller / centrifugal pump fault
HighSymptoms: A pump will not run at set flow, speed unstable, occlusion out of adjustment, flow-probe error.
Root cause: Worn roller-pump raceway / rollers, a centrifugal drive-motor / coupling fault, or a flow-probe fault.
Console / control-module fault
HighSymptoms: A pump module unresponsive, display errors, module not recognised by the console.
Root cause: Module electronics or the console-to-module link.
Battery / UPS fault
HighSymptoms: Short back-up run time, will not transfer cleanly on a power interruption.
Root cause: Aged battery / UPS pack.
Pressure / level / bubble-monitoring fault
MediumSymptoms: Pressure, reservoir-level or bubble-detector alarms implausible or not triggering.
Root cause: Transducer, level-sensor, or bubble-detector fault.
Heater-cooler / temperature fault
MediumSymptoms: Blood / cardioplegia temperature not tracking, heater-cooler alarm, flow fault.
Root cause: Heater-cooler pump / refrigeration or a temperature-probe fault.
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.
Roller-pump raceway / roller kit
Class Periodic replacementRel. cost $$$R&R Difficult
Centrifugal drive motor / coupling
Class Major service partRel. cost $$$R&R Difficult
Battery / UPS pack
Class Periodic replacementRel. cost $$$R&R Moderate
Pressure / level / bubble sensors
Class Periodic replacementRel. cost $$R&R Moderate
Flow probe
Class Periodic replacementRel. cost $$R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Roller-pump raceway / roller kit | Periodic replacement | $$$ | Difficult |
| Centrifugal drive motor / coupling | Major service part | $$$ | Difficult |
| Battery / UPS pack | Periodic replacement | $$$ | Moderate |
| Pressure / level / bubble sensors | Periodic replacement | $$ | Moderate |
| Flow probe | Periodic replacement | $$ | Fairly easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
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: A pump will not run correctly
- Move the function to a spare pump module / mast position to isolate module vs console.
- Check the roller occlusion setting and inspect the raceway / rollers (roller pumps).
- Check the centrifugal drive coupling and flow probe.
- Verify flow against an independent flow probe.
- Replace the roller kit or drive components as isolated; a CPB console must pass a full functional check before clinical use.
Symptom: Monitoring alarm implausible or not triggering
- Verify each pressure channel against a reference.
- Test the level and bubble detectors per the service procedure.
- Reseat the sensor connectors.
- Calibrate the pressure channels.
- Replace a sensor that fails its functional test - these are safety systems.
Documents & Manuals
No documents available for this device yet.
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