Variation in electrode parameters and deflectable electrode to modify energy density and tissue interaction

US12053224B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Stephen M. Leuck · Milford, US
• John E. Brady · Cincinnati, US
• Nina Mastroianni · Cincinnati, US
• Wei Guo · Zhuolan Township, TW
• Geoffrey S. Strobl · Williamsburg, US
• Craig N. Faller · Batavia, US
• Jeffrey D. Messerly · Cincinnati, US
• Frederick E. Shelton, IV · Hillsboro, US

Key dates

• Filing date: May 29, 2020
• Grant date: Aug 6, 2024
• Expiry date: Jul 29, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2218/008
• 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 electrically couple to a pole of an electrical generator. The clamp arm includes a clamp jaw and an electrode configured to electrically couple to an opposite pole of the electrical generator. In one configuration, the electrode is segmented. In another configuration, the ultrasonic blade includes electrically insulative material deposited on selected areas to prevent electrical shorting in the event of the ultrasonic blade contacts the electrode. In another configuration, the clamp arm, the ultrasonic blade, or both include selectively coated components.