Bifurcation stent with overlapping crimped struts
First Claim
1. A bifurcated stent having an expanded and an unexpanded state, the stent comprising:
- an outer surface and an inner surface with a wall extending therebetween, the inner surface defining an inner stent lumen, a primary stent body having a proximal end and a distal end with a band circumferential therebetween, a side branch portion disposed in the band circumferential, in the unexpanded state the band circumferential has at least one overlapped section, the at least one overlapped section having a greater density of stent material than at least one adjacent section of the stent, in the expanded state the side branch portion extending obliquely from the primary stent body.
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Accused Products
Abstract
A bifurcated stent has an expanded and an unexpanded state with an outer surface and an inner surface with a wall extending there between and the inner surface defining an inner stent lumen. The stent has a primary stent body with a proximal end and a distal end with a band circumferential there between. A side branch portion is disposed in the band circumferential and in the unexpanded state the band circumferential has at least one overlapped section such that the at least one overlapped section has a greater density of stent material than the rest of the stent. In the expanded state the side branch portion extends obliquely from the primary stent body.
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Citations
23 Claims
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1. A bifurcated stent having an expanded and an unexpanded state, the stent comprising:
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an outer surface and an inner surface with a wall extending therebetween, the inner surface defining an inner stent lumen, a primary stent body having a proximal end and a distal end with a band circumferential therebetween, a side branch portion disposed in the band circumferential, in the unexpanded state the band circumferential has at least one overlapped section, the at least one overlapped section having a greater density of stent material than at least one adjacent section of the stent, in the expanded state the side branch portion extending obliquely from the primary stent body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A crimper comprising:
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multiple first crimping members and at least one pair of second crimping members, the first crimping members constructed and arranged about an aperture and defining a maximum circular diameter, the first crimping members moveable such that movement of the first crimping members increase or decrease the maximum circular diameter;
the at least one pair of second crimping members moveable separately from the first crimping members. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method of crimping a stent comprising:
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(a) providing a stent crimper having multiple first crimping members and at least one pair of second crimping members, the first crimping members constructed and arranged about an aperture and defining a maximum circular diameter, the first crimping members moveable such that movement of the first crimping members increase or decrease the maximum circular diameter, the at least one pair of second crimping members moveable separately from the first crimping members;
(b) inserting a stent into the aperture of the crimper;
(c) acting on the stent with the at least one pair of second crimping members such that the stent deforms and forms at least one flap; and
(d) acting on the stent to further crimp the stent such that the at least one flap overlaps other portions of the crimped stent. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification