Anastomosis device with collapsible distal head element

US9820804B2 · kind B2 · utility

Assignee

• Aesculap AG · DE

Inventors

• Dieter Weisshaupt
• Christoph Rothweiler · Donaueschingen, DE

Key dates

• Filing date: Nov 6, 2012
• Grant date: Nov 21, 2017
• Expiry date: Jun 9, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2018/1497
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical instrument for bonding body tissue includes a shank and first and second tool elements which are movable relative to each other and include a respective electrode. The electrodes define a minimum distance from each other, are opposed to each other and face each other in an approximating position of the tool elements. The first tool element is arranged or formed at the distal end of the shank, so that a mechanical load of anastomoses of body tissue parts produced by current flow is minimized when removing the surgical instrument. The second tool element is adapted to be brought from an operating position, in which it can be brought into the approximating position, into a removing position, in which a peripheral withdrawing line defined by the electrode of the second tool element is shorter than a peripheral approximating line defined by the electrode in the approximating position.