Roger B Goodfriend

age ~95

from Monte Sereno, CA

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Methods And Apparatus For Disintegration Of Urinary Calculi Under Direct Vision
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US Patent:

46026339, Jul 29, 1986
Filed:

Nov 16, 1984
Appl. No.:

6/672118
Inventors:

Roger Goodfriend - Santa Clara CA
Clark E. Stohl - Jamestown NY
Assignee:

Blackstone Corporation - Jamestown NY
International Classification:

A61B 1700
US Classification:

128328
Abstract:

A method and apparatus are provided for machining and disintegrating urinary calculi by subjecting the urinary calculi to ultrasonic forces transmitted by a wave guide in one passageway of a catheter while under observation through an optical system in a second parallel passage in the catheter.