Method and device for the endoscopic application of self-closing medical clips

US7740639B2 · kind B2 · utility

Assignees

• Carl Stahl GmbH · DE
• Medwork Medical Products and Services GmbH · DE

Inventors

• Christian Hummel · Oberdolling, DE
• Gerhard Emberger · Essen, DE
• Rudolf Bauer · Hallerndorf, DE

Key dates

• Filing date: Jul 13, 2004
• Grant date: Jun 22, 2010
• Expiry date: Dec 23, 2025

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/12004
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method and apparatus for the endoscopic application of self-closing medical clips (3), in particular, for arresting internal bleeding. The distal end of a catheter tube (1) is introduced into the body of a living being to be treated. Several clips (3), arranged successively in the catheter tube (1), are pushed forward in the direction of the tube distal end by a user device located at the proximal end of the catheter tube (1). The foremost clip (3) to be applied is pushed out of the distal end and opened by an actuation device. The actuation device includes an actuation element (21) which can be actuated by the user device, moved longitudinally into the catheter tube (1), and acts on the first front clip (3), as well as a control part (25) which converts the actuation force of the actuation element into an opening movement of the legs (5) of the clip (3). After the opening of the clip (3), the actuation element (21) is separated from the clip (3), for releasing the clip to close its legs (5) for application, and to functionally link with the following clip (3) in the catheter tube (1).