Tubular-shafted surgical instrument

US5630832A · kind A · utility

Assignee

• Aesculap AG · DE

Inventors

• Nicola Giordano · Villingen-Schwenningen, DE
• Pedro Morales · Tuttlingen, DE
• Markus Nesper · Tuttlingen, DE
• Lino Taddia · Wurmlingen, DE
• Dieter Weisshaupt

Key dates

• Filing date: Jul 3, 1996
• Grant date: May 20, 1997
• Expiry date: Jul 3, 2016

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/2931
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A tubular-handled surgical instrument has two mutually articulated grip shanks. A tube is secured on one of the shanks, with a tool fitted at its end. A rod-like actuator for the tool is fitted to move longitudinally in the tube and articulated on the other shank via a cylindrical or spherical end. A releasable connection is provided between the tube and the actuator on the one hand and between the two shanks on the other. The tube is insertable into a tubular recess in one shank and axially securable therein by at least one radially movable spherical locking member making a friction fit with the tube in one end position. The radial movement of the locking member is limited by a stop bearing on the outside of the locking member formed by a sleeve axially movable on the tubular recess. The sleeve is movable in relation to the locking member in such a way that the locking member can be moved radially outwards to differing extents.