Surgical stapling apparatus

US9888921B2 · kind B2 · utility

Assignee

• Covidien LP · US

Inventors

• Justin Williams · Southbury, US
• Christopher Penna · Guilford, US
• Lee Ann Olson · Wallingford, US
• Stanislaw Marczyk · Stratford, US
• Kenneth M. Cappola · Monroe, US
• Thomas R. Hessler · Bethel, US
• Ernest Aranyi · Easton, US
• Stanislaw Kostrzewski · Coventry, US

Key dates

• Filing date: Jun 21, 2013
• Grant date: Feb 13, 2018
• Expiry date: Nov 2, 2035

Classification

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

Abstract

A surgical stapling apparatus (stapler) is provided. The stapler includes a housing, elongated member, and a reload. A cartridge is configured to selectively couple to a first jaw member of the reload and includes one or more resilient members thereon. An anvil operably supported on a second jaw member of the reload is configured to compress one or more fasteners ejected from the cartridge. The anvil includes one or more locking members thereon. A knife is configured to translate through the cartridge and anvil when the first and second jaw members are in a closed configuration. Engagement between the knife and the resilient member(s) causes the resilient member(s) to move from an initial configuration that allows the knife to travel distally past the locking member(s) to a final configuration that allows the locking member(s) to engage the knife.