Surgical stapling device

US7753247B2 · kind B2 · utility

Assignee

• Sartorius Stedim Biotech GmbH · DE

Inventor

• Christian Pradel · Kalefeld, DE

Key dates

• Filing date: Jan 18, 2008
• Grant date: Jul 13, 2010
• Expiry date: Jan 18, 2028

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B17/0644
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical stapling device for applying staples in a layer of tissue. A staple magazine is arranged in a device body and contains a plurality of spring loaded, stacked staples. A triggering element moves from a ready position to an actuation position causing an upper die to pick up a staple at an outlet of the staple magazine, to bend the staple feet inwards, and to fold, on an anvil engaging between the staple feet, the ends of a staple cross bar so as to form staple legs. A flat, spring-loaded tongue ejector element extends beneath the anvil. The ejector element is displaced against its direction of transport when the triggering element is moved from a readiness position into the actuation position, and is displaced in its direction of transport when the triggering element returns to the ready position so as to push the applied staple from the anvil.