How The Handpiece Works; Electromechanical Operation - Integra Cusa Excel Service Manual

How the Handpiece Works

How the Handpiece Works
Figure 6-1.
The handpiece components
Irrigation
solution
Suction
Handpiece
cable
Cooling
Cooling
water out
water in
6-2
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.
Irrigation
connection
Handpiece
housing
Electric coil

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.
CUSA EXcel Ultrasonic Surgical Aspirator System Service Manual
Handpiece clip
Transducer
Flue
Retainer
Clip
Vibrating tip