Vascular device with valve for approximating vessel wall
First Claim
1. A vascular device comprising a plurality of vessel engaging members and a valve, the device movable from a collapsed insertion position having a first diameter to a second expanded position having a second diameter larger than the first diameter, the plurality of vessel engaging members extending outwardly from the device for securely engaging the internal wall of a vessel upon expansion of the device to the second expanded position, the vessel engaging members pulling the internal wall of the vessel radially inwardly upon movement of the device from the second expanded position toward a first expanded position having a third diameter, the third diameter being greater than the first diameter and less than the second diameter, and in the first expanded position the valve movable between an open position to allow blood flow therethrough to a closed position to prevent blood flow.
1 Assignment
0 Petitions
Accused Products
Abstract
A vascular device comprising a plurality of vessel engaging members and a valve. The device is movable from a collapsed insertion position having a first diameter to a second expanded position having a second diameter larger than the first diameter. The plurality of vessel engaging members extend outwardly from the device for securely engaging the internal wall of a vessel upon expansion of the device to the second expanded position, wherein the vessel engaging members pull the internal wall of the vessel radially inwardly upon movement of the device from the second expanded position toward a first expanded position having a third diameter greater than the first diameter and less than the second diameter. In the first expanded position the valve is movable between an open position to allow blood flow therethrough to a closed position to prevent blood flow.
298 Citations
30 Claims
- 1. A vascular device comprising a plurality of vessel engaging members and a valve, the device movable from a collapsed insertion position having a first diameter to a second expanded position having a second diameter larger than the first diameter, the plurality of vessel engaging members extending outwardly from the device for securely engaging the internal wall of a vessel upon expansion of the device to the second expanded position, the vessel engaging members pulling the internal wall of the vessel radially inwardly upon movement of the device from the second expanded position toward a first expanded position having a third diameter, the third diameter being greater than the first diameter and less than the second diameter, and in the first expanded position the valve movable between an open position to allow blood flow therethrough to a closed position to prevent blood flow.
-
12. A vascular system comprising:
-
a balloon catheter having an elongated shaft and an expandable balloon;
a vascular device mounted over the expandable balloon having a first position and a second expanded position, the vascular device expandable to an expanded position to engage the vessel walls and returnable substantially to the first position to bring the walls radially inwardly; and
a valve connected to the vascular device and movable between a closed position to prevent blood flow and an open position to allow blood flow therethrough. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A method for treating venous valve insufficiency comprising:
-
inserting a delivery device and a vascular device having a replacement valve into a target vessel adjacent the region of the removed portion of leaflets;
deploying the vascular device to an enlarged diameter to securely engage the internal wall of the vessel; and
reducing the diameter of the vascular device to move the vessel wall radially inwardly to reduce dilation of the vessel and implant the replacement valve. - View Dependent Claims (19, 20, 21, 22, 23, 24)
-
- 25. A replacement valve comprising a support structure and a valve attached thereto, the valve being substantially conical in configuration and having a proximal end, a distal end, and a proximal and distal opening, the distal opening facing away from the longitudinal axis when the valve is in the closed position and aligned with the longitudinal axis when the valve is in the open position.
Specification