Tubular stent with oval struts
First Claim
1. An expandable tubular endoluminal prosthesis for maintaining the patency of a bodily vessel, the prosthesis having a plurality of axially spaced serpentine bands, each serpentine band having a proximal and distal end and a plurality of interconnected struts, serpentine bands which are adjacent one another connected one to the other, the prosthesis having a flow path therethrough, the prosthesis capable of radial outward expansion from a first diameter to a second enlarged diameter, the struts which in a cross-section perpendicular to the flowpath have thicker portions with a narrower portion therebetween and have a greater width than thickness.
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Accused Products
Abstract
An expandable tubular endoluminal prosthesis for maintaining the patency of a bodily vessel has a plurality of axially spaced serpentine bands. Each serpentine band has a proximal and distal end and a plurality of interconnected struts. Serpentine bands which are adjacent one another are connected one to the other. The prosthesis has a flow path therethrough and is capable of radial outward expansion from a first diameter to a second enlarged diameter. In a cross-section perpendicular to the flowpath, the struts have thicker portions with a narrower portion therebetween and have a greater width than thickness.
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Citations
12 Claims
- 1. An expandable tubular endoluminal prosthesis for maintaining the patency of a bodily vessel, the prosthesis having a plurality of axially spaced serpentine bands, each serpentine band having a proximal and distal end and a plurality of interconnected struts, serpentine bands which are adjacent one another connected one to the other, the prosthesis having a flow path therethrough, the prosthesis capable of radial outward expansion from a first diameter to a second enlarged diameter, the struts which in a cross-section perpendicular to the flowpath have thicker portions with a narrower portion therebetween and have a greater width than thickness.
- 10. A stent comprising a plurality of axially spaced serpentine bands, each serpentine band having a proximal and distal end and a plurality of interconnected struts, serpentine bands which are adjacent one another connected one to the other, the stent having an outer surface and an inner surface, the inner surface defining a flow path therethrough, the stent capable of radial outward expansion from a first diameter to a second enlarged diameter, the struts having a length, a width, and a thickness, the length being the longest dimension of each strut and measured on the outer surface, the struts being substantially the same length, the width being measured on the outer surface of each strut and transverse the length of each strut, the thickness being the distance between an outer surface of the strut and an inner surface, of the strut, the struts having a greater width than thickness, portions of the struts having a cross-section which includes a necked region between end regions, the necked region having a thickness substantially less than the thickness of the end regions, the stent being of a tubular shape and open at both ends.
Specification