Locking stent
First Claim
Patent Images
1. An expandable intraluminal stent able to resist axial compression, comprising:
- a body portion having a generally cylindrical structure formed by a series of interconnected structural members, at least one of said structural members being formed of two portions having overlapping free ends; and
a plurality of teeth projecting on adjacent surfaces of said overlapping free ends,wherein said stent is expanded to allow said two portions of said at least one structural member to overlap at said free ends, wherein said teeth on said adjacent surfaces of said overlapping free ends of said structural member engage one another to retain said stent in its expanded shape, and wherein at least some of said interconnecting structural members form a triangular substructure having a base structural member and two angled structural members wherein said base structural member of said triangular substructure is formed of two portions having overlapping free ends.
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Abstract
An expandable intraluminal stent able to resist axial compression, comprising a body portion having a generally cylindrical structure formed by a series of interconnected bars or struts, at least one of said struts being formed of two portions having overlapping free ends; and a plurality of teeth projecting on adjacent surfaces of said overlapping free ends; whereby said stent is expanded to allow said two portions of said at least one strut to overlap at said free ends, whereby said teeth on said adjacent surfaces of said overlapping free ends of said struts engage one another to retain said stent in its expanded shape.
188 Citations
4 Claims
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1. An expandable intraluminal stent able to resist axial compression, comprising:
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a body portion having a generally cylindrical structure formed by a series of interconnected structural members, at least one of said structural members being formed of two portions having overlapping free ends; and a plurality of teeth projecting on adjacent surfaces of said overlapping free ends, wherein said stent is expanded to allow said two portions of said at least one structural member to overlap at said free ends, wherein said teeth on said adjacent surfaces of said overlapping free ends of said structural member engage one another to retain said stent in its expanded shape, and wherein at least some of said interconnecting structural members form a triangular substructure having a base structural member and two angled structural members wherein said base structural member of said triangular substructure is formed of two portions having overlapping free ends. - View Dependent Claims (2, 3, 4)
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Specification