Deflectable electrode with variable compression bias along the length of the deflectable electrode

US11937863B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Jeffrey D. Messerly · Cincinnati, US
• Frederick E. Shelton, IV · Hillsboro, US
• Stephen M. Leuck · Milford, US
• Nina Mastroianni · Cincinnati, US
• John E. Brady · Cincinnati, US
• Wei Guo · Zhuolan Township, TW

Key dates

• Filing date: May 29, 2020
• Grant date: Mar 26, 2024
• Expiry date: Nov 8, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/034
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An end-effector is disclosed. The end-effector includes a clamp arm and an ultrasonic blade configured to acoustically couple to an ultrasonic transducer and to electrically couple to a pole of an electrical generator. The clamp arm includes a clamp jaw, a plurality of variable longitudinal support elements, and a cantilever electrode configured to electrically couple to an opposite pole of the electrical generator, the cantilever electrode fixed to the clamp jaw at a proximal end and free to deflect at a distal end. The cantilever electrode is supported by the variable longitudinal support elements. The variable longitudinal support elements apply a variable force on the cantilever electrode from the proximal end to the distal end.