Medtronic Ablation Frontiers LLC

Aaron R Strunk

Alex Novichenok

Marshall L Sherman

Catherine R Condie

Timothy J Corvi

Kathryn Elaine Kasischke

Reynaldo O Cruz

A polyacrylamide tissue phantom embedded with multi-formulated thermochromic liquid crystals for use in the evaluation of RF ablation therapies is provided. The tissue phantom approximates the properties of biological tissue, and therefore provides a suitable substitute for use in testing the effects of RF and other energy-emitting devices on biological tissue. Also provided is a system for using the tissue phantom in the evaluation of RF therapies.

Thermochromic polyacrylamide tissue phantom and its use for evaluation of ablation therapies

A medical method, device, and system are provided, including advancing an ablation element of a medical device into contact with tissue to be treated, selecting a power level of energy to ablate the tissue, delivering energy at the selected power level to the ablation element, determining whether the ablation element is in continuous contact with the tissue, and reducing the selected power level when the ablation element ceases to be in continuous contact with the tissue.

System and method for adaptive RF ablation

A device and method for treating a variety of tissue locations within a patient's body using a single device that includes an elongate body having a distal portion, a shaft rotatably and slidably disposed within the elongate body, and a first arm and a second arm each coupled to the elongate body distal portion. Retraction and rotation of the shaft transitions the each arm from a linear configuration to a radially expanded configuration in which each arm has an arcuate shape and lies in a plane that is substantially orthogonal to the elongate body longitudinal axis. Electrodes coupled to the arms are equidistant from the longitudinal axis of the elongate body in different radial directions when the device is in the radially expanded configuration. The electrodes are radially symmetrical about the shaft when the radially expanded configuration has a first diameter or a second diameter.

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San Diego, CA, United States of America

Aaron R Strunk