Bipolar coagulation probe and snare

US9439716B2 · kind B2 · utility

Assignee

• Gyrus ACMI, Inc. · US

Inventors

• Kester J. Batchelor · Mound, US
• Tracey L. DOBBS · Delano, US
• Jyue Boon Lim · New Brighton, US
• Nikhil M. Murdeshwar · Abington, US
• Tsuyoshi Hayashida · Sagamihara, JP
• Richard J. Curtis · Crosskeys, GB

Key dates

• Filing date: Oct 1, 2013
• Grant date: Sep 13, 2016
• Expiry date: Sep 8, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2018/1467
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An electrosurgical device that can be used to remove pedunculated tissue structures such as polyps and certain uterine fibroids includes bipolar surface electrodes and a bipolar snare. The device includes a probe having a proximal end and a distal end, bipolar surface electrodes adjacent to the distal end of the probe, and a bipolar snare extending distally from the distal end of the probe and including first and second snare electrodes. The bipolar surface electrodes are separated from each other by a gap and extend over a portion of the distal end of the probe. Providing both a bipolar snare and bipolar surface electrodes advantageously reduces thermal spread from occurring (compared to the use of a monopolar snare) when using the snare to excise the tissue. The bipolar surface electrodes can be used to coagulate the point of excision.