Catheter with spring coil inner lumen

Abstract

Abstract An over-the-wire dilatation catheter with a spring coil inner lumen is disclosed. The wound wire of the spring coil inner lumen is preferably stainless steel flat wire, and the preferred dimensions for the flat wire are 0.0015 inch by 0.006 inch. Usually the inner lumen is jacketed with a biocompatible polymer, preferably polyethylene, and it may be enhanced by a lubricious coating on the interior. The outer shaft is preferably comprised of a stiffer proximal and a more flexible, narrower distal portion.

Inventors

• 👤 Don Ik Shin
• 👤 Leo R. Roucher, Jr.

Bibliographic Details