Boston Scientific Scimed, Inc.

University of Connecticut

Boston Scientific Corporation

Francisca Tan

Ronald A Sahatjian

Claude O Clerc

Patrick T Mather

Changdeng Liu

Cheryl J Campo

Qing Ge

Cliff Liu

Ron Sahatjian

A medical device includes a balloon catheter having an expandable member, e.g., an inflatable balloon, at its distal end and a stent or other endoprosthesis. The stent is, for example, an apertured tubular member formed of a polymer and is assembled about the balloon. The stent has an initial diameter for delivery into the body and can be expanded to a larger diameter by inflating the balloon.

Implantable medical devices

According to aspects described herein, there is disclosed an improved hot balloon catheter delivery system for shape memory tubular stents is disclosed. An outer sheath is provided on the delivery system that facilitates stent placement on a balloon during delivery through an endoscope. In one embodiment, the stent may be positioned between radiopaque markers/electrodes and the balloon may be heated. The stent may be prevented from moving proximally relative to the catheter as the delivery system is tracked through the patient's anatomical passageways. The outer sheath may be positioned to ride over the proximal cone of the hot balloon catheter and abut the proximal end of the stent to facilitate proper alignment of the balloon for deployment. Upon deployment of the stent in an appropriate position, the sheath may be pulled away from the stent to expose the proximal cone of the balloon and thereby allow balloon and stent expansion.

Expandable stent delivery system with outer sheath

Endoprostheses

Growing community of inventors

Boston, MA, United States of America

Francisca Tan