Dilatation catheter with expanding balloon

Abstract

Abstract A dilatation catheter is provided with an expanding balloon which can be made to advance into a narrowed coronary artery along a guide wire (10) placed by a guide catheter. An inflation tube (11) is provided for expanding the balloon, which consists of a hose-like outer envelope (1) to which is connected, at the axially oriented edges (4, 5), an inner envelope (2) also having a hose-like shape. Between the inner envelope (2) and the outer envelope (1) is an inner annular space (3) which surrounds an open central lumen (9) extending axially through the balloon and ensures during dilatation a constant flow of blood into the coronary artery.

Inventors

• 👤 Tassilo Bonzel

Bibliographic Details