Medtronic ACT II
Medtronic · Model ACT II
Portable automated coagulation timer The ACT II is used for hemostasis management that enables coagulation testing in cardiovascular and vascular surgery, catheterization laboratories, critical care units, and hemodialysis units. The ACT II provides multiple testing capabilities including various Activated Clotting Time (ACT) tests, the High Range Heparinase (HRHTC) test, the Prothrombin Time (PT) test and the General Purpose Cartridge (GPC) that can be used for the Activated Partial Thromboplastin Time (aPTT) test. Comes with DPU-414 Thermal Printer.
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.
Sensor / electrode fault or drift
HighSymptoms: pH, pCO2, pO2, electrolyte, glucose / lactate or CO-oximetry results flagged, QC fails, stability / response errors.
Root cause: An electrode / membrane at end of life, an air bubble or protein in the measuring path, or a calibration fault.
Sample-path / inlet clog or clot
MediumSymptoms: Sample not aspirated, clot detected, inlet / preheater alarm.
Root cause: Clot in the inlet probe / preheater, or a worn inlet gasket.
Solution / cartridge / gas / waste fault
MediumSymptoms: Reagent-empty, gas-supply or waste-full alarm, calibration fails.
Root cause: Empty or expired solution pack / cartridge, an empty / expired gas cylinder, or a full waste container.
Pump / valve / pneumatic fault
MediumSymptoms: Poor sample transport, calibration or rinse failures, pressure alarms.
Root cause: Worn peristaltic pump tubing, a pinch-valve fault, or a pneumatic-pressure fault.
CO-oximetry / optical fault
MediumSymptoms: tHb, sO2 or dyshaemoglobin results implausible, optics / lamp error.
Root cause: Optics contamination, a lamp fault, or the haemolyser.
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.
Sensor cassette / individual electrodes & membranes
Class Frequent wear itemRel. cost $$$R&R Fairly easy
Solution pack / reagent cartridge
Class ConsumableRel. cost $$R&R Easy
Calibration gas cylinder
Class Frequent wear itemRel. cost $$R&R Easy
Peristaltic pump tubing / pinch valves
Class Frequent wear itemRel. cost $R&R Moderate
Inlet probe / preheater gasket
Class Frequent wear itemRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Sensor cassette / individual electrodes & membranes | Frequent wear item | $$$ | Fairly easy |
| Solution pack / reagent cartridge | Consumable | $$ | Easy |
| Calibration gas cylinder | Frequent wear item | $$ | Easy |
| Peristaltic pump tubing / pinch valves | Frequent wear item | $ | Moderate |
| Inlet probe / preheater gasket | Frequent wear item | $ | 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: Sensor flagged or QC fails
- Run the relevant calibration and check the sensor / electrode status screen.
- De-bubble / rinse the measuring path and check for protein deposits.
- Replace an electrode / membrane at end of life or that fails calibration.
- Confirm the solution pack and calibration gas are in date and not empty.
- Re-run QC at the relevant levels before releasing results.
Symptom: Sample not aspirated / clot
- Run the inlet / preheater clot-removal or rinse routine.
- Inspect the inlet probe and gasket.
- Replace the inlet gasket or probe.
- Confirm free sample aspiration with a QC sample.
- Replace worn pump tubing if transport is still poor.
Technical Specs
- Height
- 16.5 in
- Length
- 24.1 in
- Weight
- 3.6 kg
- Width
- 16.5 in
Documents & Manuals
No documents available for this device yet.
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