Ultrasonic instrument for surgical appts. - combines detachable probe with optimum handpiece for engaged function

摘要

In the course of surgical operations, living tissues are cut or emulsified, or internal stones are reduced to powder, by ultrasonic vibrations. The oscillator is mounted in a hand-piece (1a, 1b) to which a probe (4a, 4b, 4c) isdetachably affixed, and derives actuating power from a portable trolley (7). The nature of the specific hand-piece being used is identified by a device (18) supplied in each coupling terminal (6), eg a variable resistance responsive to the probe, or a Zener diode. ADVANTAGE - Correct combination of hand-piece and probe for a specific surgical intervention can be rapidly identified.