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US 12,636,147 B2Granted
Temporary vascular valve and related systems and methods
AssigneesThe Regents of the University of California, The United States Government as represented by the Department of Veterans Affairs
InventorsElaine Tseng, Liang Ge, John Ashley, Brenna Lord
Life of this patent
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Abstract
Various temporary or removable valve devices having an expandable frame comprising a flexible material and a membrane attached to the expandable frame, wherein the temporary valve device is movable into an expanded configuration for deployment of the device in a target vascular area and further is movable into a collapsed configuration for both delivery of the device to the target vascular area and for removal of the device from the target vascular area.
Claims20
A temporary valve device comprising:
- (a) an expandable frame comprising a flexible material;
- (b) at least one support strut having a first end portion and a second end portion, wherein the first end portion of each support strut of the at least one support strut is attached to the expandable frame, and wherein the second end portion of each support strut of the at least one support strut is positioned radially inward of the expandable frame;
- (c) a membrane attached to the expandable frame;
- and
- (d) an elongated body that contacts the second end portion of each support strut of the at least one support strut, wherein the elongated body is configured to guide deployment of the expandable frame to a target vascular area, wherein the expandable frame is affixed to the elongated body or configured to be advanced over the elongated body, wherein the elongated body comprises a first portion on a proximal side of the expandable frame and a second portion on a distal side of the expandable frame,
- wherein the temporary valve device is movable into an expanded configuration for deployment of the device in the target vascular area, and
- wherein the temporary valve device is movable into a collapsed configuration for both delivery of the device to the target vascular area and for removal of the device from the target vascular area.
4 more elements
A removable valve device comprising:
- (a) an expandable frame;
- (b) at least one support strut attached to the expandable frame;
- (c) a flexible membrane attached to the expandable frame and directly attached to and in contact with at least one of the at least one support struts;
- and
- (d) an elongated body that is configured to guide deployment of the expandable frame to a target vascular area, wherein the expandable frame is affixed to the elongated body or configured to be advanced over the elongated body, wherein the elongated body comprises a first portion on a proximal side of the expandable frame and a second portion on a distal side of the expandable frame,
- wherein the removable valve device is movable between a collapsed configuration and an expanded configuration, and
- wherein the removable valve device is removable in the collapsed configuration after use.
4 more elements
A method of positioning a temporary valve device within a patient, the method comprising:
- inserting the temporary valve device in a collapsed configuration through a blood vessel to a target location in the patient, the temporary valve device comprising:
- (a) an expandable frame;
- and
- (b) at least one support strut having a first end portion and a second end portion, wherein the first end portion of each support strut of the at least one support strut is attached to the expandable frame, and wherein the second end portion of each support strut of the at least one support strut is positioned radially inward of the expandable frame;
- (c) a membrane attached to the expandable frame,
- wherein inserting the temporary valve device comprises using an elongated body to insert the temporary valve device, wherein the valve body is affixed to the elongated body or configured to be advanced over the elongated body, wherein the elongated body contacts the second end portion of the at least one support strut and comprises a first portion on a proximal side of the expandable frame and a second portion on a distal side of the expandable frame;
- expanding the temporary valve device in the blood vessel such that the expandable frame is disposed against an inner wall of the blood vessel, whereby the temporary valve device provides hemodynamic support to the patient;
- and
- collapsing the temporary valve device back to the collapsed configuration and retracting the temporary valve device through the blood vessel.
6 more elements
Dependencies are inferred from the claim text.