Implantable device for placement in a vessel having a variable size
First Claim
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1. A device for implantation in a body vessel, the device having a lengthwise axis and comprising:
- a hub member;
a plurality of flexible struts, each strut having a first end attached to the hub member and a second end, wherein the struts are spring-biased to diverge from the hub member;
a frame member extending only partially along a circumference of the device about said lengthwise axis and at an angle with respect to said lengthwise axis from a first attachment point with a first of the plurality of struts to a second attachment point with a second of the plurality of struts, wherein the frame member contacts at least a third of the plurality of struts; and
a leaflet having a perimeter, a first portion of the perimeter extending along and continuously attached to the frame member from the first attachment point to the second attachment point and a second portion of the perimeter free of contact with the frame member;
wherein the leaflet is deformable between a first position allowing fluid flow in a first, antegrade direction and a second position restricting fluid flow in a second, retrograde direction.
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Abstract
A device for implantation in a body vessel is provided. The device includes a frame that accommodates dynamic variation in the size of the vessel. At least one leaflet is attached to the frame. The leaflet is deformable between a first position allowing fluid flow in a first, antegrade direction and a second position restricting fluid flow in a second, retrograde direction. Methods for delivering the device to a body vessel and methods and kits for treating a subject using such a device are also provided.
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Citations
20 Claims
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1. A device for implantation in a body vessel, the device having a lengthwise axis and comprising:
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a hub member; a plurality of flexible struts, each strut having a first end attached to the hub member and a second end, wherein the struts are spring-biased to diverge from the hub member; a frame member extending only partially along a circumference of the device about said lengthwise axis and at an angle with respect to said lengthwise axis from a first attachment point with a first of the plurality of struts to a second attachment point with a second of the plurality of struts, wherein the frame member contacts at least a third of the plurality of struts; and a leaflet having a perimeter, a first portion of the perimeter extending along and continuously attached to the frame member from the first attachment point to the second attachment point and a second portion of the perimeter free of contact with the frame member; wherein the leaflet is deformable between a first position allowing fluid flow in a first, antegrade direction and a second position restricting fluid flow in a second, retrograde direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device for implantation in a body vessel, the device having a lengthwise axis and comprising:
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a hub member; a plurality of struts diverging from the hub member, each strut having a first end attached to the hub member and a second end; a graft sheet attached to and extending between portions of a first and a second of the plurality of struts; and a frame member extending only partially along a circumference of the device about said lengthwise axis and at an angle with respect to said lengthwise axis from a first attachment point with a first of the plurality of struts to a second attachment point with a second of the plurality of struts, wherein the frame member contacts at least a third of the plurality of struts; and a leaflet having a perimeter, a first portion of the perimeter extending along and attaching to the graft sheet and a second portion of the perimeter extending along and continuously attached to the frame member from the first attachment point to the second attachment point; wherein the leaflet is deformable between a first position allowing fluid flow in a first, antegrade direction and a second position restricting fluid flow in a second, retrograde direction. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification