Asymmetric segmented ultrasonic support pad for cooperative engagement with a movable RF electrode

US11944366B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Craig N. Faller · Batavia, US
• Richard W. Flaker · Lancaster, US
• Nina Mastroianni · Cincinnati, US
• John E. Brady · Cincinnati, US
• Frederick E. Shelton, IV · Hillsboro, US
• Jeffrey D. Messerly · Cincinnati, US

Key dates

• Filing date: May 29, 2020
• Grant date: Apr 2, 2024
• Expiry date: Jul 2, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/035
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An end-effector is disclosed including an ultrasonic blade configured to acoustically couple to an ultrasonic transducer and electrically couple to a pole of an electrical generator and a clamp arm including a clamp jaw and a cantilever electrode fixed to the clamp jaw. The cantilever electrode is configured to electrically couple to an opposite pole of the electrical generator. The clamp arm may include an I-beam shaped clamp arm pad and the cantilever electrode is disposed between the I-beam. The clamp jaw, the cantilever electrode, and the clamp arm pad may define recesses along a length coinciding with the ultrasonic blade. The clamp arm pad may be fixed to the clamp jaw and disposed between the clamp jaw and the cantilever electrode and may extend beyond the surface of the cantilever electrode. The clamp arm may include a stationary gap setting pad and movable floating gap setting pads.