Stryker Mistral-Air
Stryker · Model Mistral-Air
HEPA filter Diffusion technology Reflective technology Wide range of plus and premium disposables Over- and under-temperature alarms Default blower start-up temperature of 38°C Quiet, high-volume blower.
Key tips
- ·Never skip temperature-accuracy verification to save time - it's the one check that directly prevents burns.
- ·Hose/blanket connector wear is the most common real fault and the easiest to miss on a quick visual check.
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.
Not delivering warm air / temperature fault
HighSymptoms: Air not warm, temperature alarm, over-temp shutdown, blows cold.
Root cause: Heater element, a temperature-sensor / thermal-cutout fault, or a control-board fault.
Low airflow / blower fault
MediumSymptoms: Weak airflow, blanket will not inflate, blower noisy.
Root cause: Worn blower, a blocked intake filter, or a kinked / disconnected hose.
Hose / adapter fault
LowSymptoms: Hose cracked, will not connect to the blanket, air leaks at the coupling.
Root cause: Worn hose or end fitting.
Filter overdue / dirty
LowSymptoms: Reduced airflow, longer warm-up.
Root cause: Clogged intake / HEPA filter.
Over-temperature safety fault
MediumSymptoms: Repeated over-temp alarms even with good airflow.
Root cause: Sensor or thermal-cutout 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.
Heater element
Class Major service partRel. cost $$R&R Moderate
Blower / motor
Class Major service partRel. cost $$R&R Moderate
Temperature sensor / thermal cutout
Class Major service partRel. cost $$R&R Moderate
Intake / HEPA filter
Class Frequent wear itemRel. cost $R&R Easy
Delivery hose / adapter
Class Periodic replacementRel. cost $$R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Heater element | Major service part | $$ | Moderate |
| Blower / motor | Major service part | $$ | Moderate |
| Temperature sensor / thermal cutout | Major service part | $$ | Moderate |
| Intake / HEPA filter | Frequent wear item | $ | Easy |
| Delivery hose / adapter | Periodic replacement | $$ | 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.
- ·Hose / blanket connector inspection
- ·Temperature-accuracy verification
- ·Annual electrical safety test
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: Fluid / blood / blanket not reaching target temperature
- Confirm the correct programme / set for the fluid type and flow rate.
- Check both heater plates (or the water bath) warm evenly.
- Verify the output temperature against an independent reference at a representative flow.
- Replace the temperature sensor if it disagrees.
- Replace the heater plate / control assembly if output is still low.
Symptom: Over-temperature alarm / shutdown
- Let the unit cool and restart.
- Compare the displayed temperature to an independent reference.
- Check for an extreme flow-rate change during use (fluid warmers).
- Replace the temperature sensor / control board as isolated.
- Confirm stable control across the range before returning to service.
Symptom: Low airflow / blower fault (forced-air) or low water flow (water blanket)
- Replace the intake / HEPA filter (forced-air) or top up and de-air the reservoir (water).
- Check the hose for kinks or splits and confirm the correct blanket type.
- Inspect the blower / circulation pump and impeller.
- Replace the blower / pump if flow is still low.
- Confirm delivered air / water temperature and flow after repair.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating Room
- PACU
- Emergency Department
- Labor & Delivery
- NICU
Documents & Manuals
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
Expired Products distributed to customers
- RECALL
It was identified that the Mistral-Air Premium blankets may be capable of conducting electricity during a defibrillation or cardioversion therapy at higher energy levels (70 Joules or more) when the blanket is applied with the reflective side toward the patient (upside down).
- RECALL
Due to the buildup of grease within the hose and motor, the product may require multiple attempts to start. The grease may also migrate into the attachment end of the motor. There is a negligible possibility that the orange grease may leak from the attachment end of the motor and contaminate the surgical wound resulting in soft tissue inflammation.
- RECALL
Complaints were received from the field indicating that some Air Pumps were flashing and alarming when connected to the IsoGel AIR" surface upon turning the pump on and the setting it to the IsoGel AIR Mode. Upon further investigation, it was determined that the flashing/alarm being experienced was due to the air pressure being out of the expected range; indicating a blockage within the LAL tubi
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