Hybrid stent
AssigneeVesper Medical, Inc.
InventorsMichael A. Longo, William James Harrison
Life of this patent
Estimating the term…
Abstract
A stent includes a high radial/crush force segment and a highly flexible segment. In an aspect, a plurality of first ring struts connected such that each of the plurality of first rings comprises a sinusoidal pattern having a plurality of apices and troughs, each first ring connected to an adjacent first ring by at least one connector. The connector extends from a ring strut of the first ring from a position near an apex of the first ring to a ring strut of the adjacent first rings near an apex of the adjacent ring, and a second stent segment comprises a plurality of second rings connected to one another to form a series of second rings.
Claims15
A stent, comprising:
- an expandable first stent segment having a first stent segment compressed state and a first stent segment expanded state, the expandable first stent segment having a plurality of first rings connected to one another to form a series of said first rings, the first rings comprising a plurality of first ring struts, the first ring struts comprising shape memory alloy, the first ring struts connected such that each of the plurality of first rings comprises a sinusoidal pattern having first apices and first troughs, the first rings having a first radial force in the first stent segment expanded state;
- and
- an expandable second stent segment having a second stent segment compressed state and a second stent segment expanded state, the expandable second stent segment having a plurality of second rings connected to one another to form a series of said second rings, the second rings comprising a plurality of second ring struts, the second ring struts comprising shape memory alloy, the second ring struts connected such that each of the plurality of second rings comprises a sinusoidal pattern having second apices and second troughs, the second rings having a second radial force in the second stent segment expanded state;
- wherein the expandable first stent segment is contiguous with and adjacent to the expandable second stent segment;
- and
- wherein the first radial force is greater than the second radial force.
Dependencies are inferred from the claim text.