St Jude Medical, Atrial Fibrillation Division, Inc

Lynn E Gilmour

Saurav Paul

Israel A Byrd

Troy Terrance Tegg

Richard E Stehr

D Curtis Deno

James V Kauphusman

Jeffrey A Schweitzer

Harry A Puryear

Jeremy David Dando

Valtino X Afonso

Martin Maitre Grasse

Jeffrey Michael Fish

Christopher J Geurkink

Rohan Lathia

An electrode catheter device with indifferent electrode for direct current tissue therapies is disclosed. An example of the catheter device has a flexible tubing with at least one ablation electrode. The catheter device also may also be used with a sheath for introducing the flexible tubing inside a patient's body. An indifferent electrode on the sheath can provide a ground for a direct current (DC) pulse to deliver electrical energy and create an electrical field adjacent a tissue. Various other embodiments are also disclosed.

Electrode catheter device with indifferent electrode for direct current tissue therapies

A method and system for determining a likelihood of barotrauma occurring in tissue during formation of a lesion therein is provided. The system includes an electronic control unit (ECU). The ECU is configured to acquire at least one value of at least one component of a complex impedance between an electrode and the tissue. The ECU is configured to calculate an index responsive to the at least one value of the at least one complex impedance component. The index is indicative of a likelihood of barotrauma occurring in the tissue. The method comprises acquiring at least one value of at least one component of a complex impedance between an electrode and the tissue. The method comprises calculating an index responsive to the at least one value of the at least one complex impedance component. The calculated index is indicative of a likelihood of barotrauma occurring in the tissue.

Systems and methods for determining the likelihood of endocardial barotrauma in tissue during ablation

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Savage, MN, United States of America

Lynn E Gilmour