How the Handpiece Works
6-2 CUSA EXcel Ultrasonic Surgical Aspirator System Service Manual
How the Handpiece Works
The handpiece converts electrical energy to mechanical energy, resulting in
vibration in the handpiece, and from the handpiece through a connecting body to
a hollow titanium tip. When it contacts tissue, the tip fragments the tissue. The
conversion of electrical energy to mechanical energy generates heat; a cooling
system reduces the heat in the handpiece.
Figure 6-1.
The handpiece components
Electromechanical Operation
The CUSA EXcel console provides alternating current at 23 or 35.75 thousand
cycles per second (kHz) to the handpiece (the frequency depends on which
handpiece you connect to the console). In the handpiece, the current passes
through a coil, which induces a magnetic field. The magnetic field excites a
transducer of nickel alloy laminations, resulting in an oscillating motion in the
transducer laminated structure—vibration—along its long axis. The transducer
vibrates at 23 or 35.75 kHz.
Transducer
Vibrating tip
Handpiece clip
Irrigation
connection
Retainer
Clip
Irrigation
solution
Flue
Electric coil
Handpiece
housing
Handpiece
cable
Cooling
water in
Cooling
water out
Suction
To Next Page
Loading...
Need help?
General
