Feedback and lockout mechanism for surgical instrument

US8608044B2 · kind B2 · utility

Assignee

• Ethicon Endo-Surgery, Inc. · US

Inventors

• Geoffrey C. Hueil · Cincinnati, US
• Mark S. Ortiz · Milford, US
• Douglas B. Hoffman · Cadiz, US
• Patrick A. Weizman · Monroe, US
• Dean B. Bruewer · Lancaster, US
• Frederick E. Shelton, IV · Hillsboro, US

Key dates

• Filing date: Feb 15, 2008
• Grant date: Dec 17, 2013
• Expiry date: Oct 10, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/2927
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical apparatus particularly suited for sequentially applying a plurality of fasteners to body tissue and simultaneously incising tissue is provided. A handle assembly includes a movable handle. The movable handle is movable through an actuation stroke. An elongate body extends distally from the handle assembly and defines a longitudinal axis. The elongate body has a distal end adapted to releasably engage both articulating and non-articulating disposable loading unit types. An actuation shaft is supported at least in part within the handle assembly and is mounted for longitudinal movement in response to manipulation of the actuation handle. An energy activated firing lockout system prevents operation of the surgical apparatus under a plurality of conditions.