Electrosurgical systems and methods

US11116569B2 · kind B2 · utility

Assignee

• SMITH & NEPHEW, INC. · US

Inventors

• Jean Woloszko · Mountain View, US
• Jonathan L. Gaspredes · Austin, US
• Douglas G. Evans · Austin, US
• Robert Lathrop · Medford, US
• Brendan Smith · Bellevue, US
• David Turner · Beaverton, US
• Christopher J. Aholt · Austin, US
• Troy S. Hemme · Idlewild, US

Key dates

• Filing date: May 16, 2018
• Grant date: Sep 14, 2021
• Expiry date: May 16, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2218/007
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An electrosurgical wand is disclosed for treating a plurality of tissues at a variety of tissue locations. The electrosurgical wand includes a handle on a proximal end and an elongate shaft with a combination active electrode at the distal end. The combination active electrode includes with a blade and screen portion; the blade portion extending along and laterally from the wand longitudinal axis, forming a dissecting tip. The screen portion extends from the blade portion at an obtuse angle and has at least one aspiration aperture through it. The wand also includes a second and third electrode, proximally spaced from the combination active electrode. The second electrode spans a portion of an outside surface of the wand adjacent the blade portion, while the third electrode spans a portion of the outside surface of the wand opposite the second electrode.