Stents with elevations at selected crossing points
AssigneeBoston Scientific Scimed, Inc.
InventorMarc Gianotti
Life of this patent
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Abstract
A prosthetic stent with a tubular wall having local inwardly or outwardly formed elevations. Stents having such elevations have a higher mechanical stability if bend according to the curvature of the body vessels to be supported or repaired. Also a method for manufacturing a stent with such elevations is described.
Claims15
A stent for use in a body passageway comprising a flexible self-expanding braided tubular wall comprising helically wound wires and having proximal and distal ends, wherein the tubular wall has at least a local inwardly and/or outwardly formed elevation.
A method for manufacturing a stent comprising:
- (a) providing an elongated mandrel having an outer diameter and at least one local outwardly bound elevation;
- (b) forming an elongated metallic tubular braid having proximal and distal ends, the braid having an inner diameter commensurate with the outer diameter of the mandrel;
- (c) engaging the tubular braid over the mandrel;
- (d) heating the tubular braid while it is engaged over the mandrel;
- (e) cooling the tubular braid;
- and
- (f) disengaging the braid from the mandrel.
Dependencies are inferred from the claim text.