Ablation system, methods, and controllers

US9987070B2 · kind B2 · utility

Assignee

• ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC. · US

Inventors

• John Blix · Maple Grove, US
• James C. Baker · Woodbury, US
• Kevin K. Ennett · Lino Lakes, US
• John E. Hein · Menasha, US
• Joseph A. Brotz · Oshkosh, US
• Joseph William Barnier · Menasha, US
• Raymond Victor Froehlich · Neenah, US
• Michael Olsen · Savage, US
• Sukanya Varadharajan · Maplewood, US

Key dates

• Filing date: Mar 11, 2014
• Grant date: Jun 5, 2018
• Expiry date: Dec 25, 2034

Classification

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

Abstract

Multi-electrode ablation systems, methods, and controllers are described. In one example, a multi-electrode ablation system includes a power supply configured to be coupled to a plurality of electrodes and a controller coupled to the power supply. The controller is configured to determine a thermal gain of each electrode of the plurality of electrodes. For each electrode of the plurality of electrodes, the controller sets a power limit based at least in part on said electrode's determined thermal gain. The power limit establishes a maximum power that may be dissipated through said electrode.