Treatment of incompetent vessels
First Claim
1. An expandable device for delivery to a target location in a body vessel, comprising:
- a frame comprising a proximal loop, a distal loop, and first and second U-shaped link members, the first U-shaped link member having a first radius of curvature and the second U-shaped link member having a second radius of curvature, wherein the first and second radii of curvature have a common bend axis, the first U-shaped link member having a first proximal end obliquely coupled to the proximal loop at a first proximal location, the second U-shaped link member having a second proximal end obliquely coupled to the proximal loop at a second proximal location, the second proximal location being spaced apart from the first proximal location, and a second end coupled to the distal loop, the first U-shaped link member further having a first distal end obliquely coupled to the distal loop at a first distal location, the second U-shaped link member having a second distal end obliquely coupled to the distal loop at a second distal location, the second distal location being spaced apart from the first distal location, the proximal and distal loops being at opposite ends of a longitudinal axis, wherein in an expanded configuration, the first and second U-shaped link members (i) are symmetrical with each other about a first plane passing through the longitudinal axis and (ii) are each symmetrical about a second plane that is oriented perpendicular to the first plane;
wherein the frame is expandable from (1) a collapsed configuration in which the first and second U-shaped link members are generally straight and extend substantially parallel relative to the longitudinal axis, to (2) an expanded configuration, in moving to which (a) the first and second planes each rotate angularly, relative to the longitudinal axis, from the collapsed configuration by between about 10 degrees and about 170 degrees, and (b) the first and second radii of curvature decrease to cause the first and second U-shaped link members to foreshorten along the longitudinal axis to bias the proximal loop toward the distal loop; and
a cover member coupled to the frame.
1 Assignment
0 Petitions
Accused Products
Abstract
An implant device can include a frame and a cover member for delivery to and occlusion of a target body vessel. The frame can include proximal and distal members, coupled by a link member structure, and can expand from a collapsed configuration to an expanded configuration. In the collapsed configuration, a first plane passes through the proximal member and a second plane passes through the distal member, and the link member extends substantially parallel relative to a longitudinal axis of the device. In moving to the expanded configuration, the first and second planes each move angularly, relative to the longitudinal axis, from the collapsed configuration by between about 10 degrees and about 170 degrees, and the link member foreshortens along the longitudinal axis to bias the proximal member toward the distal member.
405 Citations
21 Claims
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1. An expandable device for delivery to a target location in a body vessel, comprising:
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a frame comprising a proximal loop, a distal loop, and first and second U-shaped link members, the first U-shaped link member having a first radius of curvature and the second U-shaped link member having a second radius of curvature, wherein the first and second radii of curvature have a common bend axis, the first U-shaped link member having a first proximal end obliquely coupled to the proximal loop at a first proximal location, the second U-shaped link member having a second proximal end obliquely coupled to the proximal loop at a second proximal location, the second proximal location being spaced apart from the first proximal location, and a second end coupled to the distal loop, the first U-shaped link member further having a first distal end obliquely coupled to the distal loop at a first distal location, the second U-shaped link member having a second distal end obliquely coupled to the distal loop at a second distal location, the second distal location being spaced apart from the first distal location, the proximal and distal loops being at opposite ends of a longitudinal axis, wherein in an expanded configuration, the first and second U-shaped link members (i) are symmetrical with each other about a first plane passing through the longitudinal axis and (ii) are each symmetrical about a second plane that is oriented perpendicular to the first plane; wherein the frame is expandable from (1) a collapsed configuration in which the first and second U-shaped link members are generally straight and extend substantially parallel relative to the longitudinal axis, to (2) an expanded configuration, in moving to which (a) the first and second planes each rotate angularly, relative to the longitudinal axis, from the collapsed configuration by between about 10 degrees and about 170 degrees, and (b) the first and second radii of curvature decrease to cause the first and second U-shaped link members to foreshorten along the longitudinal axis to bias the proximal loop toward the distal loop; and a cover member coupled to the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An expandable device for delivery to a target location in a body vessel, comprising:
- a frame comprising a proximal loop, a distal loop, and first and second U-shaped link members, the first U-shaped link member having a first radius of curvature and the second U-shaped link member having a second radius of curvature, wherein the first and second radii of curvature have a common bend axis, the first U-shaped link member being coupled at its ends to the proximal and distal loops, the second U-shaped link member being coupled at its ends to the proximal and distal loops, wherein the frame is expandable from (1) a collapsed configuration in which the first and second U-shaped link members are generally straight and straightened to extend substantially parallel relative to a longitudinal axis of the device, to (2) an expanded configuration, in moving to which (a) the proximal and distal loops each rotate angularly, relative to the longitudinal axis, from the collapsed configuration by between about 10 degrees and about 170 degrees, and (b) the first and second radii of curvature decrease to cause the first and second U-shaped link members to foreshorten along the longitudinal axis to bias the proximal loop toward the distal loop; and
a cover member coupled to the frame. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
- a frame comprising a proximal loop, a distal loop, and first and second U-shaped link members, the first U-shaped link member having a first radius of curvature and the second U-shaped link member having a second radius of curvature, wherein the first and second radii of curvature have a common bend axis, the first U-shaped link member being coupled at its ends to the proximal and distal loops, the second U-shaped link member being coupled at its ends to the proximal and distal loops, wherein the frame is expandable from (1) a collapsed configuration in which the first and second U-shaped link members are generally straight and straightened to extend substantially parallel relative to a longitudinal axis of the device, to (2) an expanded configuration, in moving to which (a) the proximal and distal loops each rotate angularly, relative to the longitudinal axis, from the collapsed configuration by between about 10 degrees and about 170 degrees, and (b) the first and second radii of curvature decrease to cause the first and second U-shaped link members to foreshorten along the longitudinal axis to bias the proximal loop toward the distal loop; and
Specification