Stent

Abstract

Abstract A known method for treating pathological body vessels is the implantation of stents (1) as an extended filament (2), by means of a catheter (22), which springs into a given form only once at the implantation site, as a result of its thermo-memory property or its elasticity. The invention relates to a new kind of stent (1), created in order to improve the flexibility and stability of the stent. This is achieved in that the stent filament or stent filaments (2, 2') are present in the form of at least two opposed spirals (3, 3'). The filament (2) consists of a material with high elasticity or with thermo-memory properties. The stent (1) can be covered with a structure made of pieces of fabric and/or fibres, and serves in this way as a stent graft. The new stent demonstrates high stability and flexibility. The stent can be introduced into a body vessel by means of a lumen, which essentially corresponds to the outside diameter of the filaments (2, 2') forming the stent (1), by means of catheter (22), and expands in the point of destination to a large-lumen tube-shaped implant.

Inventors

• 👤 Ernst Peter Prof Dr M Strecker

Bibliographic Details