Electrosurgical devices and methods of use thereof

US8920417B2 · kind B2 · utility

Assignee

• Medtronic Advanced Energy LLC · US

Inventors

• Brian M. Conley · South Berwick, US
• Jonathan J. Barry · Stratham, US
• Roger D. Greeley · Portsmouth, US
• Chad M. Greenlaw · Somersworth, US
• Lorenzo C. Vaccarella · Cumberland, US
• Joseph Sylvester · San Dimas, US

Key dates

• Filing date: Dec 28, 2012
• Grant date: Dec 30, 2014
• Expiry date: Dec 28, 2032

Classification

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

Abstract

In some embodiments, an electrosurgical device includes a shaft, a first U-shaped electrode at a distal end of the shaft, and a second blade shaped electrode at the distal end of the shaft. The second electrode includes a spherical distal end. And the second electrode is substantially coplanar with the first electrode such that the first electrode surrounds a perimeter of the second electrode. The second electrode is spaced from the first electrode by an aperture. In some embodiments, an electrosurgical device includes a shaft, a first electrode at a distal end of the shaft defining an aperture and comprising a pointed tip, and a second electrode disposed at the distal end of the shaft that is substantially coplanar with the first electrode such that the first electrode surrounds a perimeter of the second electrode. The second electrode is spaced from the first electrode by the aperture.