Electrode assembly for RF energy enabled tissue debridement device

US11197714B2 · kind B2 · utility

Assignee

• Medtronic Xomed, Inc. · US

Inventors

• John R. Prisco · Jacksonville, US
• Eric P. Detmers · Jacksonville, US
• Wenjeng Li · Pomona Park, US
• David J. Little · Jacksonville, US
• Patrick Richart · Jacksonville, US
• Jose Valdez · Jacksonville, US

Key dates

• Filing date: Dec 17, 2018
• Grant date: Dec 14, 2021
• Expiry date: Feb 13, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2218/002
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A bipolar electrosurgical device is disclosed that operates in a mechanical cutting mode and a hemostasis mode. The device includes a housing and a blade assembly extending from the housing. The blade assembly forms a cutting tip and cutting window at a distal end region to provide mechanical cutting of tissue and first and second electrode assemblies to provide electrical energy to tissue. The first electrode assembly includes an outer shaft defining a first electrode surface and the second electrode assembly includes an electrode body extending along and electrically isolated from an outer shaft and defining a U-shape in cross section.