Selective treatment of stent side branch petals
First Claim
1. A stent comprising a plurality of interconnected strut members, a plurality of said interconnected strut members comprising a plurality of petals including a first petal, the plurality of petals defining a side branch cell, the first petal including a bending region, the bending region being selectively treated to reduce the strength of the bending region when compared to a region of the first petal adjacent to the bending region.
1 Assignment
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Accused Products
Abstract
A stent may include a side branch cell comprising a plurality of petals. When deployed in a bifurcated vessel, petals located near the inside of the bifurcation may experience high amounts of bending. A petal may include a predetermined bending region in which the petal is treated and may have less bending strength. Therefore, the petal will bend at the predetermined bending region in a predetermined fashion. A bending region may be heat-treated to reduce strength, may comprise less cross-sectional area than other portions of the petal, etc.
148 Citations
20 Claims
- 1. A stent comprising a plurality of interconnected strut members, a plurality of said interconnected strut members comprising a plurality of petals including a first petal, the plurality of petals defining a side branch cell, the first petal including a bending region, the bending region being selectively treated to reduce the strength of the bending region when compared to a region of the first petal adjacent to the bending region.
- 9. A stent comprising a plurality of interconnected strut members, a plurality of said interconnected strut members comprising a plurality of petals including a first petal, the plurality of petals defining a side branch cell, the first petal including a bending region, wherein the cross-sectional area of the bending region is less than the cross-sectional area of the first petal adjacent to the bending region.
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20. A stent comprising a plurality of interconnected struts defining a primary body portion having a substantially cylindrical shape and a plurality of cells including a side branch cell, the side branch cell shaped differently than another cell of the stent, the side branch cell comprising a plurality of petals including a first petal, at least a portion of each petal constructed and arranged to deploy in a radial outward direction beyond the substantially cylindrical shape of the primary body portion, the first petal including a bending region, wherein the cross-sectional area of the bending region is less than the cross-sectional area of the first petal in a location adjacent to the bending region.
Specification