Koronare Endoprothese und ihr Herstellungsverfahren

摘要

A stent for implantation in a coronary artery (1) is assembled from discrete modules (2) fashioned in a biocompatible material, each composed of two "C" shaped members joined at the ends by respective rectilinear and mutually parallel members (3a, 3b); the individual modules are linked together by a single helicoid element (4), likewise fashioned in a biocompatible material, which is coiled around the rectilinear members (3a, 3b) in such a way as to effect a closure of the modules, disposed one alongside another, in a direction parallel with their longitudinal axis (X). The modules (2) and the helicoid element (4) are plastically deformable both in the radial and in the axial dimension, so that the surgeon can vary the axial distribution of the modules internally of the blood vessel (1) and modify the ultimate configuration of the helicoid element (4).