Self-expanding stent for introducing a medical device in a body cavity and manufacturing process

摘要

The implant consists of a tube (1) which expands and contracts both radially and axially, and is made from two sets of semi-rigid flexible filaments in spirals running in opposite directions in the form of a braiding made from multiple filaments (2, 3; 5, 6). The tube has at least one cylindrical portion and can be flared at one or both ends, pref in the shape of a segment of a hyperbole. The filaments from which it is made are of a stainless and biocompatible metal, or a plastic with an elastic memory effect.