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US 2008/0177373 A1Published application
Endoprosthesis structures having supporting features
AssigneeElixir Medical Corporation
InventorsHoward Huang, John Yan, Brett Cryer, Motasim Sirhan, Vinayak Bhat
Life of this patent
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Abstract
An endoprosthesis includes a plurality of serpentine rings having supporting features which increase hoop strength, inhibit recoil, and provide an increased surface area. The supporting features may be formed between adjacent axial struts of the serpentine rings or may be positioned between axial lengths joining the serpentine rings together.
Claims26
An endoprosthesis comprising:
- a plurality of circumferentially expandable serpentine rings, each serpentine ring including axial struts joined by crowns, wherein the crowns act as hinges allowing the struts to spread as the ring opens circumferentially;
- axial links joining at least some crowns on adjacent rings;
- and
- supporting features extending between at least some adjacent struts of at least some of the serpentine rings, wherein the supporting features elongate and the struts remain substantially undeformed as the rings circumferentially expand.
1 more element
An endoprosthesis comprising:
- a plurality of circumferentially expandable serpentine rings, each serpentine ring including axial struts joined by crowns, wherein the crowns act as hinges allowing the struts to spread as the ring opens circumferentially;
- axial links joining at least some crowns on adjacent rings;
- and
- supporting features extending between at least some adjacent axial links between adjacent serpentine rings, wherein the supporting features elongate as the rings circumferentially expand.
1 more element
Dependencies are inferred from the claim text.