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US 12,751,844 B2Granted
Uncaging stent
AssigneeElixir Medical Corporation
InventorsMotasim Sirhan, John Yan, Vinayak Bhat, Joseph Paraschac, Brett Cryer, Benjamyn Serna
Life of this patent
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Abstract
A stent (scaffold) or other luminal prosthesis comprising circumferential structural elements which provide high strength after deployment and allows for scaffold to uncage, and/or allow for scaffold or luminal expansion thereafter. The circumferential scaffold is typically formed from non-degradable material and will be modified to expand and/or uncage after deployment.
Claims29
An endoluminal prosthesis comprising:
- a scaffold having a tubular body comprising a plurality of circumferential rings patterned from a non-degradable material, the scaffold being configured to expand from a crimped configuration to an expanded configuration;
- wherein at least some of the plurality of circumferential rings comprise struts joined by crowns, wherein at least some of the plurality of circumferential rings are axially joined to adjacent circumferential rings;
- wherein at least some of the plurality of circumferential rings have at least two separation regions, the at least two separation regions being a pre-formed break or gap within the at least some of the plurality of circumferential rings, wherein the at least two separation regions are immobilized during expansion but configured to move apart after expansion in a physiologic environment to form discontinuities in the plurality of circumferential rings;
- and wherein the scaffold is configured to circumferentially separate into two to five separate segments extending from one end of the scaffold to the other end of the scaffold after all discontinuities are formed, the segments having at least some intact axial links between adjacent circumferential rings in each segment.
1 more element
Dependencies are inferred from the claim text.