Smith and Nephew Dyonics Power II
Smith and Nephew · Model Dyonics Power II
Choice of soft tissue cutting modes adapt to surgeon preferences and procedure demand. Dual hot ports enable simultaneous activation of shaver and power handpieces. Blade family auto-recognition quickly recalls preferred settings. Footswitch can be operated in variable speed or on-off modes. Provides flexibility to activate handpiece and footswitch controls during a procedure.
Key tips
- ·Never defeat or bypass a return-electrode monitoring (REM) alarm to finish a case - it's a direct burn risk.
- ·Verify OR table battery backup - a table that loses power mid-procedure is a real, documented incident type.
- ·Track surgical light lamp-hours rather than waiting for failure - a sudden failure mid-case is avoidable.
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.
Will not reach or hold set joint / cavity pressure
HighSymptoms: Pressure droops or overshoots, poor distension, pressure or flow alarm.
Root cause: Pump-head / roller wear, a pressure-sensor fault, a leak in the tubing / inflow-outflow, or a blocked cannula.
Tubing / cassette-detection fault
MediumSymptoms: Cassette / tubing not recognised, will not prime, leaks at the pump head.
Root cause: Cassette-detection switch or worn pump-head seals.
Outflow / suction-control fault
MediumSymptoms: Poor outflow, cannot clear debris, outflow alarm.
Root cause: Outflow pump / valve or a blocked suction line.
Shaver / handpiece fault (shaver systems)
MediumSymptoms: Blade will not oscillate / rotate, weak cut, handpiece not recognised, footswitch dead.
Root cause: Worn shaver handpiece / motor, or its cable / footswitch.
Display / control fault
LowSymptoms: Unresponsive touchscreen or keys, will not power on.
Root cause: Display / control board or power supply.
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.
Pump-head rollers / seals
Class Periodic replacementRel. cost $$R&R Moderate
Pressure sensor / transducer
Class Major service partRel. cost $$R&R Moderate
Cassette-detection switch
Class Periodic replacementRel. cost $$R&R Moderate
Shaver handpiece / motor (shaver systems)
Class Periodic replacementRel. cost $$$R&R Moderate
Footswitch
Class Periodic replacementRel. cost $$R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Pump-head rollers / seals | Periodic replacement | $$ | Moderate |
| Pressure sensor / transducer | Major service part | $$ | Moderate |
| Cassette-detection switch | Periodic replacement | $$ | Moderate |
| Shaver handpiece / motor (shaver systems) | Periodic replacement | $$$ | Moderate |
| Footswitch | Periodic replacement | $$ | 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.
- ·Pre-case functional check
- ·Electrosurgical return-electrode cable inspection
- ·Table hydraulic / mechanical inspection
- ·Annual electrical safety test and full PM
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: Will not hold set pressure / poor distension
- Fit a fresh tubing set / cassette and re-prime.
- Confirm the inflow and outflow cannulae are patent and connections are tight.
- Run the pump self-test and verify the set pressure against a gauge if possible.
- Inspect the pump-head rollers / seals for wear.
- Replace the pump head or pressure sensor as isolated.
Symptom: Shaver will not run (shaver systems)
- Swap the shaver handpiece and cable.
- Check the footswitch and its connection.
- Confirm the console recognises the handpiece.
- Test forward / reverse / oscillate modes.
- Replace the handpiece or refer the console output as isolated.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Operating rooms
- Procedure rooms
- Interventional suites
Documents & Manuals
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
The single use devices are provided sterile and do not have an expiration date on the label.
- RECALL
Manufacturing issue: The distal tip of the outer sheath (return electrode) may detach and become loose in the joint during use.
- RECALL
Product has insufficient weld between the shaft tube and tip, could result in the tip separating from the shaft tube during use.
- RECALL
The sterility of the device cannot be assured
- RECALL
Product sterility is compromised due to breach in the sterile packaging.
- RECALL
External battery chargers used with the Version 29 VISTA Negative Pressure Wound Therapy pumps are failing to properly charge the pump's battery.
- RECALL
Integrity of the remote control bag may not be sufficient to prevent tearing or opening of the bag during use.
- RECALL
Sterility seal of the package tray may have gaps/voids compromising the sterility of the device.
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