Ultrasonic surgical blade

US9848900B2 · kind B2 · utility

Assignee

• Ethicon, Inc. · US

Inventors

• David A. Witt · Maineville, US
• Timothy G. Dietz · Wayne, US
• Stephen J. Balek · Springboro, US
• Benjamin M. Boyd · Fairborn, US
• David C. Groene · Cincinnati, US
• Benjamin V. Vins · Bengaluru, IN
• William C. Horton · Duxbury, US
• Ashvani K. Madan · Mason, US

Key dates

• Filing date: Nov 26, 2013
• Grant date: Dec 26, 2017
• Expiry date: Dec 9, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/320098
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An ultrasonic instrument comprises an ultrasonic transducer, an acoustic waveguide, and an ultrasonic blade. The blade includes a pair of obliquely extending edges. The obliquely extending edges diverge away from the longitudinal axis of the waveguide and away from each other along respective paths extending distally in relation to the waveguide. A distal portion of the blade is wider than a proximal portion of the blade along a plane. The blade further includes a curved distal edge and several laterally presented surfaces. The laterally presented surfaces may provide combinations of concave and convex curvatures. The laterally presented surfaces may be angled and/or curved along one or more orthogonal planes associated with the longitudinal axis of the waveguide.