End effector for instrument with ultrasonic blade and bipolar clamp arm

US11786289B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Jason R. Lesko · Cadiz, US
• Catherine A. Corbett · Cincinnati, US
• William B. Weisenburgh, II · Maineville, US
• Barry C. Worrell · Maineville, US
• Mark A. Davison · Mason, US
• Chad P. Boudreaux · Cincinnati, US
• Nathan Cummings · Blue Ash, US
• Ellen Burkart · Cincinnati, US
• William D. Dannaher · Cincinnati, US
• Christina M. Hough · Cincinnati, US
• Craig N. Faller · Batavia, US
• Adam N. Brown · Cincinnati, US
• Jeffrey D. Messerly · Cincinnati, US
• Kai Chen · Millburn, US
• William E. Clem · Bozeman, US

Key dates

• Filing date: Mar 31, 2020
• Grant date: Oct 17, 2023
• Expiry date: Jun 25, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2018/1455
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An apparatus includes a body, a shaft assembly, and an end effector. The end effector includes an ultrasonic blade and a clamp arm assembly. The ultrasonic blade is in acoustic communication with an acoustic waveguide of the shaft assembly. The clamp arm assembly is pivotable toward and away from the ultrasonic blade. The clamp arm assembly includes a first electrode and a second electrode. The first and second electrodes are operable to cooperate to apply bipolar RF energy to tissue.