Description

The Smith & Nephew DYONICS POWER II Footswitch(REF 72201092) is a wired footswitch designed for use with the DYONICS POWER II Control Unit(REF 72200873) to control blade action. The footswitch communicates switch and pedal action to the control unit. The footswitch has three control pedals and two switches. The pedals control the forward, reverse, and oscillate modes. The buttons control the Lavage mode and Blade Window Lock Functions. The footswitch can be operated in one of two modes: On/Off or Variable. On/Off will set the footswitch pedals to switch operation. Variable will set the footswitch pedals to adjust the handpiece speed based on pedal pressure.

Indications for Use

The DYONICS POWER II Footswitch is intended as an accessory to the Smith & Nephew DYONICS POWER II Control System. The DYONICS POWER II Control System is indicated for use, when used with appropriate procedure specific blades, for resection of soft and osseous tissues including, but not limited to, use in large articular cavities, small articular cavities, and Functional Endoscopic Sinus Surgery (FESS). The FESS application is limited to those small blades which are appropriate for the procedure. The footswitch is required when using the following handpieces:

• Standard Shaver Handpiece (REF 7205355)

• UltraLight Shaver Handpiece (REF 7205971)

• POWERMAX™ Handpiece (REF 7210586)

• POWERMAX™ ELITE™ Handpiece (REF 72200617)

• Mini Shaver Handpiece (REF 7205357)

The footswitch also may be used with hand control shaver handpieces. The DYONICS™ POWER II Footswitch has three control pedals and two switches. The pedals are labeled L, R, and <>. The L and R pedals default to reverse and forward, respectively. Depressing the left or right pedal causes the control unit to supply power

to the handpiece to drive the blade in the direction indicated. The left and right pedals can be configured to run either forward or reverse. The center (<>) pedal is always oscillate. The two switches provide control for the Blade Window Lock function and the DYONICS 25 Fluid Management System’s Lavage function. The footswitch can be assigned to either Port A or Port B on the DYONICS Power II Control Unit. For more information, see the DYONICS POWER II Control System Operations/Service Manual (REF 10600181).

On/Off and Variable Modes

The DYONICS POWER II Footswitch operates in either The On/Off  or Variable mode. On/Off will set the footswitch pedals to switch operation. Depressing the pedal causes the handpiece to operate at full set speed. Releasing the pedal turns the handpiece off. Variable will set the footswitch pedals to adjust the handpiece speed based on pedal pressure, much like the gas pedal in a car. The Left, Right and Oscillate pedals each will vary set speed between 0-100%, depending upon the pressure applied to the pedal. Maximum pressure provides 100% of set speed. Zero pressure stops the device.