Abstract: A cutting head for attachment to the end of the wire probe of an ultrasonic kidney stone disintegration instrument. The cutting head has a plurality of circumferentially arranged teeth formed at one end thereof to provide a cup-shaped receptacle for kidney stones encountered during the disintegration procedure. An integral reduced diameter collar diminishes stress points in the wire and reduces breakage thereof.
Type:
Grant
Filed:
October 30, 1985
Date of Patent:
April 25, 1989
Assignee:
The United States of America as represented by the Administrator of the National Aeronuautics & Space Administration