Boston Scientific Scimed, Inc.

Paul A Roche

Josef Vincent Koblish

Frank W Ingle

Robert F Bencini

Jonathan A Wohlgemuth

Raj Subramaniam

Venkata Vegesna

Apparatus and methods for performing cryogenic ablation of tissue and adjusting the size and/or location of a cryogenic cooling region. A cooling assembly may include tubes for dispensing and exhausting a coolant or refrigerant. One or both of the tubes may be moved, e.g., slidably adjusted, in order to adjust the location or size of a cryogenic ablation region. The cooling assembly may be integrated into cryogenic ablation devices including a cryogenic balloon device that includes an inner inflatable balloon and another balloon that is at least partially wrapped around the inner balloon and carries refrigerant for performing cryo-ablation. Electrodes permit electrical mapping of tissue before or after cryo-ablation to verify success of the procedure.

Apparatus and methods for cryogenically ablating tissue and adjusting cryogenic ablation regions

An electrosurgery system includes a catheter including one or more active electrodes adapted to be positioned adjacent biological tissue at an in vivo treatment site in a patient and to deliver electrical energy to the biological tissue. The electrosurgery system further includes a dispersive electrode assembly including a conductive element having a first end and a second end. The dispersive electrode assembly is configured to surround a waist of the patient such that a first surface of the conductive element is in contact with the waist and the first end of the conductive element is adjacent the second end of the conductive element.

Dispersive belt for an ablation system

Methods and apparatus for supplying fluid during a tissue coagulation procedure.

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San Jose, CA, United States of America

Paul A Roche