Importance

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Abstract

A stent, in particular a peripheral stent, for expansion from a first condition in which it can be introduced into a vessel (8; 8'') into a second condition in which it holds the vessel (8; 8'') expanded, comprising a number of annular support portions (2, 2.1, 2.2) comprising bar elements (3; 3'; 3'; 3'') which are connected by way of connecting bars (4; 4') in the longitudinal direction of the stent (1; 1'; 1'; 1''), wherein the bar elements at least in a portion-wise manner comprise a stent material including a shape memory alloy, characterized in that the width of the bar elements (3; 3'; 3'; 3'') varies over their length in such a way that the stresses which occur in the bar elements (3; 3'; 3'; 3'') when the stent material makes the transition from a first structural state into a second structural state, in particular as a result of an increase in temperature, are below the respective plastic deformation limit of the stent material.

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First Claim