Medtronic Ablation Frontiers LLC

Medtronic Cryocath LP

Mark Allen Benscoter

Mark T Stewart

Timothy G Laske

Gonzalo Martinez

Jon Virgil Evans

Jeremy David Dando

Jeffrey J Jannicke

Kevin A Knutsen

Patricia K Fuher

Stuart Brahm Kozlick

John Virgil Evans

Patricia Fuher

The present invention relates to a method, device, and system for improved mapping and/or ablation of a tissue. The device may generally include an elongate body and a distal assembly affixed to the elongate body that includes a treatment electrode having a conductive mapping region and a selectively conductive ablation region that is conductive of high-frequency current and substantially non-conductive of low-frequency current. Alternatively, the device may generally include a treatment electrode having a conductive mapping or ablation region and a region that is coated with an electrically insulated but thermally conductive layer.

Electrophysiology catheter design

A method and system for performing pulmonary vein isolation, mapping, and assessing pulmonary vein occlusion using a single device. The device may generally include an ablation element, such as a cryoballoon, and a sensing component slidably disposed within a lumen of the device and bearing one or more mapping electrodes and one or more pressure sensors. The method may generally include mapping cardiac electrical signals within a heart and/or pulmonary vein, positioning a distal portion of the sensing component within a pulmonary vein, advancing the ablation element until it is in contact with the pulmonary vein ostium, recording blood pressure measurements within the pulmonary vein with the one or more pressure sensors to assess pulmonary vein occlusion, and activating the treatment element when the pulmonary vein is completely occluded. The sensing component may have a straight or hooped configuration, or a configuration therebetween.

Diagnostic guidewire for cryoablation sensing and pressure monitoring

A system and method for anchoring a round catheter pull wire within the distal end of a catheter. A steering deflection mechanism includes a pull ring having a plurality of apertures and one or more receiving slots. The method includes affixing one or more round pull wires to the one or more receiving slots of the pull ring. The shape of the round wire and manner of affixing the wire to the pull ring provide a steering assembly that can withstand greater pull forces while maintaining design integrity.

Catheter deflection anchor

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Dellwood, MN, United States of America

Mark Allen Benscoter