Ultrasonic transducer to waveguide joining

US10779847B2 · kind B2 · utility

Assignee

• Ethicon, Inc. · US

Inventors

• Jeffrey D. Messerly · Cincinnati, US
• Brian D. Black · Loveland, US
• Frederick L. Estera · Cincinnati, US
• Jason R. Lesko · Cadiz, US
• Benjamin M. Boyd · Fairborn, US
• Kevin M. Fiebig · Cincinnati, US
• Chad P. Boudreaux · Cincinnati, US
• Grace E. Waters · Cincinnati, US
• Kristen G. Denzinger · Cincinnati, US
• Amy M. Krumm · Cincinnati, US
• Amelia A. Pierce · Cincinnati, US
• Chad E. Eckert · Milford, US
• Joseph Dennis · Wyoming, US
• Ion V. Nicolaescu · San Clemente, US
• Monica L. Zeckel · Zionsville, US
• William A. Olson · Lancaster, US
• Patrick J. Scoggins · Loveland, US
• Larry A. Pummill, JR. · Germantown, US
• John S. Frazier · Englewood, US
• William A. Crawford · Batavia, US
• Brian J. Hemmelgarn · Dayton, US
• Eric Stout · Fort Wayne, US
• Benjamin D. Dickerson · Cincinnati, US

Key dates

• Filing date: Aug 17, 2017
• Grant date: Sep 22, 2020
• Expiry date: Apr 10, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/42
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Aspects of the present disclosure include various ultrasonic surgical instruments. At least one disclosed surgical instrument includes a waveguide including a blade and a transducer base plate. The transducer base plate may be coupled to the waveguide to define a tapered joint at an interface between the waveguide and the transducer base plate. The transducer base plate may include first and second sides defining corresponding first and second flat faces configured to receive first and second piezoelectric elements. The first and second piezoelectric elements are configured to operate in a D31 mode.