Smith and Nephew Dyonics 25
Smith and Nephew · Model Dyonics 25
Flow rates up to 2.5 lpm Maintains stable pressure in the joint and also maintains clear field of view. Easy to set up and use Simply insert the tubing cassette, select the cannula size and press START. Multiple tube set options A variety of tubing options are available, including day tubing, which enables you to select the most cost-effective solution for your facility. LEVELERT II Fluid Level Sensor. Durable and easy to use. Battery operated unit with auto power off. Provides audible and visual alarms when fluid bags are running low Wireless Remote Control Provides full control of all pump inflow and outflow functions from anywhere within the OR.
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.
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.