Electrosurgical cutting and sealing instruments with cam-actuated jaws

US8834518B2 · kind B2 · utility

Assignee

• Ethicon Endo-Surgery, Inc. · US

Inventors

• Craig N. Faller · Batavia, US
• Matthew C. Miller · Cincinnati, US
• Omar J. Vakharia · Mason, US
• Robert J. Laird · Pinole, US
• Gavin M. Monson · Oxford, US
• John V. Hunt · Cincinnati, US
• Richard W. Timm · Cincinnati, US
• David A. Witt · Maineville, US
• Zhifan F. Huang · Mason, US
• Timothy G. Dietz · Wayne, US
• Jeffrey L. Aldridge · Lebanon, US
• Mary E. Mootoo · Cincinnati, US
• Raymond M. Banks · Cupertino, US
• Frederick E. Shelton, IV · Hillsboro, US

Key dates

• Filing date: Apr 12, 2010
• Grant date: Sep 16, 2014
• Expiry date: Mar 22, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2018/1467
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Various embodiments are directed to a surgical instrument comprising, a shaft, and an end effector. The shaft may be coupled to the handle and may extend distally along a longitudinal axis. The end effector may be positioned at a distal end of the shaft and may comprise first and second jaw members and a reciprocating member. The first and second jaw members may define first and second longitudinal slots. One or both of the jaw members may be pivotable relative to the other about a pivot point. The reciprocating member may be translatable distally and proximally parallel to the longitudinal axis and through the first and second longitudinal slots. A distal portion of the reciprocating member may define a blade. The instrument may comprise an overtube translatable distally to exert a force on a portions of the first and second jaw members tending to close the first and second jaw members.