Archives of Acoustics, 32, 4(S), pp. 117-122, 2007

A preliminary analysis of possibilities of compensating faults of laser and ultrasonic technologies in surgery

Tadeusz Gudra
Wrocław University of Technology, Institute of Telecommunications, Teleinformatics and Acoustics, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław
Poland

Sylwia Muc
Wrocław University of Technology, Institute of Telecommunications, Teleinformatics and Acoustics, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław
Poland

The active applications of ultrasounds and laser light in surgery are similar. Both technologies
complement each other and allow us to obtain desired effects, eliminating the limitations
of ultrasounds and lasers used separately. Therefore what happens very often during a medical
procedure is the simultaneous use of these two methods from separate standard devices.
Having proved the possibility of acoustic wave propagation through optical fibers, the combination
of laser light and ultrasounds in one device seems more effective. A comparative
analysis of both systems shows that combining the advantages of ultrasonic devices and lasers
in one device allows us to compensate for the faults of each of the technologies and improve
the effectiveness of surgical operations. The preliminary tests of the operation of the laserultrasonic
cutter produced positive and encouraging results. The combined technology has
made it possible to use ultrasounds for endoscope operations and to decrease the power of
laser and consequently lessen the risk of burning the quartz tip and the optical fiber. A precise
selection of the optical fiber seems to be crucial to obtaining an effective laser-ultrasonic surgical
device.What is equally important is the appropriate way the light and ultrasonic energies
interact.
Keywords: surgical laser, high intensity ultrasound, acoustic wave propagation, optical fiber.
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