Description
7-2 CUSA Excel Ultrasonic Surgical Aspirator System User’s Guide
Description
A CUSA EXcel handpiece is a handheld surgical device. It houses a
transducer that vibrates at an ultrasonic frequency, transferring the
vibrations to a hollow titanium tip. The following figure shows the
direction of vibration.
When applied to patient tissue, the vibrating tip provides the desired
surgical effect – the fragmentation and removal of specific tissue.
The handpiece connects to the CUSA EXcel console by a handpiece cable
and by manifold tubing:
• The cable consists of electric wires, which power the transducer, and
two water tubes. The circulating water removes heat from the
vibrating transducer.
• The disposable manifold tubing consists of a tube for sterile irrigation
fluid, which the CUSA EXcel console pumps to the handpiece, and a
tube for suction. Clips on the manifold tubing fasten the tubing to the
handpiece cable.
Functions
Together, a handpiece and CUSA EXcel console form an ultrasonic
surgical aspirator system. This system has three functions:
• Fragmentation: As the vibrating tip contacts tissue, the vibrations
break the tissue cells into fragments.
• Irrigation: Sterile irrigation fluid, pumped from the console through
the manifold tubing, suspends the fragmented cells so that suction can
easily remove them and prevent tip blocking. The irrigation fluid also
cools the vibrating tip.
• Aspiration (Suction): Suction through the hollow tip removes the
fragmented tissue and irrigation fluid from the surgical site.
All three functions occur at the same time.
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