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Abstract

A catheter with a self-expanding stent of a permeable mesh of stiff intersecting fibers is provided. A tubular outer catheter shaft holds the stent under tension at its distal end and from which the stent can be released for placement. A displaceable inner catheter inside the tubular outer catheter shaft supports the stent axially at its proximal end. In order to release the stent, the outer catheter shaft is retracted with respect to the inner catheter. A process for producing this catheter is also described. The stent is secured by gripping it at its proximal end in such a way that it forms a permeable mesh cone that expands automatically together with the stent and has a radius that increases gradually to the radius of the relaxed stent. The stent is securely anchored on the inner catheter with the help of the mesh cone.

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First Claim