Collapsible anvil plate assemblies for circular surgical stapling devices

US10588612B2 · kind B2 · utility

Assignee

• Ethicon, Inc. · US

Inventors

• Frederick E. Shelton, IV · Hillsboro, US
• Taylor W. Aronhalt · Loveland, US
• Kreena R. Modi · Akron, US
• Christopher J. Schall · Cincinnati, US
• Joseph E. Young · Loveland, US
• Barry C. Worrell · Maineville, US
• Jerome R. Morgan · Cincinnati, US
• William B. Weisenburgh, II · Maineville, US
• Christopher J. Hess · Cincinnati, US
• Emily A. Schellin · Cincinnati, US

Key dates

• Filing date: Sep 22, 2016
• Grant date: Mar 17, 2020
• Expiry date: Nov 9, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2270/0421
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical stapler configured to clamp, staple, and cut tissue is disclosed. The surgical stapler comprises a housing, a shaft, a staple cartridge, an expandable anvil, and a distal head portion. The shaft extends from the housing and comprises three concentric actuators. The three concentric actuators are operable independently of each other. The three concentric actuators are actuatable relative to the housing and are configured to perform three separate and distinct end effector functions. The staple cartridge comprises a unitary cartridge body. The distal head portion is configured to rotate relative to the shaft. One of the separate and distinct end effector functions comprises rotating the distal head portion to expand the anvil.