Vascular device for valve leaflet apposition
First Claim
Patent Images
1. A vascular system for treating venous valve insufficiency comprising:
- a balloon catheter having an elongated shaft and an expandable balloon;
a vascular device mounted over the expandable balloon and composed of shape memory material and having a collapsed position for delivery and a memorized position for placement within a vessel lumen, the vascular device having vessel engaging members, the vascular device expandable to an expanded position by inflation of the expandable balloon to engage the vessel walls such that the vessel engaging members grasp the vessel walls and the vascular device is subsequently returnable substantially to the memorized position such that the vessel engaging members bring the walls radially inwardly to thereby reduce a diameter of the vessel lumen to bring valve leaflets into apposition.
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Abstract
A vascular system comprising a balloon catheter having an elongated shaft and an expandable balloon. A vascular device is mounted over the expandable balloon and composed of shape memory material and has a collapsed position and a memorized position. The vascular device is expandable to an expanded position, to engage the vessel walls and returnable substantially to the memorized position to bring the walls radially inwardly.
306 Citations
12 Claims
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1. A vascular system for treating venous valve insufficiency comprising:
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a balloon catheter having an elongated shaft and an expandable balloon; a vascular device mounted over the expandable balloon and composed of shape memory material and having a collapsed position for delivery and a memorized position for placement within a vessel lumen, the vascular device having vessel engaging members, the vascular device expandable to an expanded position by inflation of the expandable balloon to engage the vessel walls such that the vessel engaging members grasp the vessel walls and the vascular device is subsequently returnable substantially to the memorized position such that the vessel engaging members bring the walls radially inwardly to thereby reduce a diameter of the vessel lumen to bring valve leaflets into apposition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification