Ultrasonic and electrosurgical devices

US11324527B2 · kind B2 · utility

Assignee

• Cilag GmbH International · CH

Inventors

• Jeffrey L. Aldridge · Lebanon, US
• Craig N. Faller · Batavia, US
• Kevin D. Felder · Cincinnati, US
• Jacob S. Gee · Cincinnati, US
• William D. Kelly · Mason, US
• Robert J. Laird · Pinole, US
• Amy L. Marcotte · Mason, US
• Jeffrey D. Messerly · Cincinnati, US
• Emily H. Monroe · New London, US
• Scott A. Nield · Hamilton, US
• Daniel W. Price · Loveland, US
• Patrick J. Scoggins · Loveland, US
• John B. Schulte · Sharonville, US
• Geoffrey S. Strobl · Williamsburg, US
• James W. Voegele · Cincinnati, US
• John A. Weed, III · Monroe, US
• William B. Weisenburgh, II · Maineville, US
• Patrick A. Weizman · Monroe, US
• John W. Willis · Cincinnati, US

Key dates

• Filing date: Feb 20, 2015
• Grant date: May 10, 2022
• Expiry date: Feb 3, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/2087
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A surgical instrument comprising a waveguide, an end effector, and an electrical switch is disclosed. The waveguide comprises a proximal end and a distal end, wherein the proximal end is configured to couple to an ultrasonic transducer and one output of a radio frequency (RF) generator. The end effector may comprise an ultrasonic blade and a clamp arm. The ultrasonic blade is mechanically coupled to the distal end of the waveguide and electrically coupled to the waveguide. The clamp arm comprises a movable jaw member electrically coupled to another output of the RF generator. The electrical switch is operable to cause the surgical instrument to deliver electrical current from the RF generator to the movable jaw member for a first period, and to cause the surgical instrument to deliver ultrasonic energy to the ultrasonic blade for a second period.