Surgical fastener applying apparatus

US7293685B2 · kind B2 · utility

Assignee

• Tyco Healthcare Group LP · US

Inventors

• Karl H. Ehrenfels · Cheshire, US
• David Ivanko · San Diego, US
• Randolph F. Lehn · Stratford, US
• Roberto Pedros · Seymour, US
• Csaba L. Rethy · Fairfield, US
• Frank J. Viola · Sandy Hook, US

Key dates

• Filing date: Feb 16, 2006
• Grant date: Nov 13, 2007
• Expiry date: Feb 27, 2026

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/0814
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An improved surgical fastener applying apparatus includes a cartridge half-section and an anvil half-section with the cartridge and anvil half-sections being relatively movable from an unclamped position to a fully clamped position. The apparatus includes a replaceable staple cartridge assembly having a plurality of surgical staples and a pivotably mounted safety lock-out. The safety lock-out is pivotable between an initial position in which a relative movement of the cartridge and anvil half-sections to the fully clamped position is permitted and a blocking position in which a relative movement of the cartridge and anvil half-sections to return them to their fully clamped position after the plurality of staples have been at least partially fired is prevented. The apparatus further includes a pivotably mounted firing lever for moving a pair of camming surfaces longitudinally. In addition, each of the presently disclosed cartridge and anvil half-sections of the fastener applying apparatus includes a clamping lever, which clamping levers are configured and adapted to enable the applying apparatus to be opened by either one of the cartridge half-section and the anvil half-section.