Stille-Sonesta Electrical Tourniquet
Stille-Sonesta · Model Electrical Tourniquet
Safety valve automatically engages if AC current is interrupted. Computerized memory. The micro processor monitors and gives alarm, both by audible and visual indicators, for possible hazardous conditions for the patient. Alarms include low pressure, leaks, kinks, elapsed time and start-up checks. Fast inflation time. Designed to operate as either a single or double cuff system used with double cuff valve, IVRA (Bier’s block).
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.
Cuff will not inflate
HighSymptoms: Cuff does not pressurise on command.
Root cause: Membrane panel / control not seated, pump not plugged in, a stuck-open deflate valve, or a valve-driver / harness fault.
Cuff will not hold pressure / leak detected
MediumSymptoms: System repeatedly tops up the cuff, leak alarm, set pressure not held.
Root cause: Cuff bladder or hose leak, or a loose connector.
Pressure inaccurate
HighSymptoms: Displayed pressure disagrees with a reference.
Root cause: Pressure transducer drift or a control-board calibration fault.
Cuff will not deflate
HighSymptoms: Cuff stays pressurised when deflation is commanded.
Root cause: Deflate valve stuck shut, or a valve-driver 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.
Air pump
Class Major service partRel. cost $$$R&R Difficult
Inflate / deflate valve assembly
Class Major service partRel. cost $$R&R Difficult
Pressure transducer
Recalibrate after replacement.
Class Major service partRel. cost $$R&R Moderate
Membrane panel / keypad
Class Major service partRel. cost $$R&R Moderate
Tourniquet cuff and hose
Class Periodic replacementRel. cost $$R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Air pump | Major service part | $$$ | Difficult |
| Inflate / deflate valve assembly | Major service part | $$ | Difficult |
| Pressure transducer Recalibrate after replacement. | Major service part | $$ | Moderate |
| Membrane panel / keypad | Major service part | $$ | Moderate |
| Tourniquet cuff and hose | Periodic replacement | $$ | 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: Cuff will not inflate
- Confirm the membrane panel / control is seated and the pump is plugged in with an intact harness.
- Check the internal tubing is not pinched and connectors are mated.
- Check the deflate valve is not stuck open.
- Run the functional and calibration checks.
- Replace the pump or valve as isolated.
Symptom: Pressure reading suspect
- Power-cycle and let any self-check run.
- Tee a calibrated reference manometer to the cuff port.
- Compare at several set pressures.
- Recalibrate per the service manual or replace the transducer.
- Re-verify and record the date.
Technical Specs
- Weight
- 2.3 kg
Documents & Manuals
No documents available for this device yet.
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