Surgical instrument with removable clamp arm assembly

US11116531B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Ryan M. Asher · Cincinnati, US
• Chad P. Boudreaux · Cincinnati, US
• Joseph Dennis · Wyoming, US
• Wei Guo · Zhuolan Township, TW
• Bryce Loring Heitman · Cincinnati, US
• James A. McCrea · Redwood City, US
• Patrick J. Minnelli · Cassville, US
• Yachuan Yu · Shanghai, CN
• Monica L. Zeckel · Zionsville, US
• Junhua Zhu · Hangzhou City, CN

Key dates

• Filing date: Oct 31, 2017
• Grant date: Sep 14, 2021
• Expiry date: Feb 16, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/0813
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical instrument has a first modular assembly and a second modular assembly. The first modular assembly has a body, an ultrasonic waveguide, an ultrasonic blade connected to a distal end of the ultrasonic waveguide, and a coupling member that movably couples with the body. The second modular assembly has a clamp arm assembly with a first pivot coupling, a clamp pad assembly with a second pivot coupling, and a distal outer sheath that selectively couples to the body of the first modular assembly via the coupling member. The distal outer sheath has an interior surface that houses a portion of the ultrasonic waveguide, and this interior surface also houses the first pivot coupling and the second pivot coupling.