Boston Scientific Scimed, Inc.

Dan Quillin

Thomas J Holman

Yousef F Alkhatib

Zachary J Tegels

Daniel James Horn

Derek C Sutermeister

Cass Alexander Hanson

Richard L Goodin

Ying Xiong

Richard A Noddin

Richard Dunn

The Thomas Trinh Tran

Steve Hoff

Zach Tegels

A medical device for ablation of a target tissue is disclosed. The medical device includes a catheter assembly attached to a balloon for the ablation of the target tissue. The catheter assembly includes a proximal end and a distal end. The catheter assembly includes a plurality of individual shafts placed concentrically or adjacent to each other. Further, the plurality of individual shafts includes a respective lumen, wherein the lumens of the plurality of individual shafts can be configured to supply radio frequency (RF) energy to an RF transmitter placed inside the balloon and also to serve as the passageway for a fluid to travel within the balloon. The fluid flowing within the lumens of the catheter assembly can further help in expanding the balloon and transferring energy from the RF transmitter within the balloon to the ablation site via a plurality of windows attached.

Renal catheter shaft design

Balloon systems for treating bifurcated lumens include desirable burst and folding characteristics. In some cases, the balloon systems can be formed by varying the wall thickness of a balloon parison.

Balloon bifurcated lumen treatment

A catheter shaft including an elongate tubular member including a first polymeric layer and a second polymeric layer bonded to the first polymeric layer. The first polymeric layer is formed of a polymer generally not bondable to fluoropolymers, and the second polymeric layer is formed of a fluoropolymer bonded to the polymer of the first polymeric layer. The fluoropolymer of the second polymeric layer is a functionalized polyvinylidene fluoride which has a bonding affinity to the polymer of the first polymeric layer. The functionalized polyvinylidene fluoride includes reactive functional groups chemically bonded to a polymer chain of a polyvinylidene fluoride which readily bond to the polymer chain of the polymer of the first polymeric layer.

Catheter having a coextruded fluoropolymer layer

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Eden Prairie, MN, United States of America

Dan Quillin