Percutaneous aortic valve
First Claim
1. A method of installing a replacement valve to replace a cardiac valve of a patient comprising:
- providing a valve having a first portion, a second portion and a movable flow restricting portion attached to the second portion;
positioning the valve in a first insertion configuration inside a first catheter such that the flow restricting portion and the first and second portions are positioned in an elongated reduced profile position;
inserting the first catheter through the femoral artery;
advancing the first catheter around the aortic arch so that a distal end portion of the catheter is adjacent an annulus of a patient;
ejecting a first portion of the valve from the catheter to position it on a first side of the annulus, the first portion moving to a second configuration for placement;
ejecting a second portion of the valve on a second side of the annulus allowing the second portion to move to a second configuration, the flow restricting portion to move to a second placement configuration and the first and second portions to clamp around both respective sides of the annulus, the flow restricting portion being in the placement configuration to open and close to respectively permit and restrict blood flow; and
tensioning a tightening member to place the first and second portions in closer proximity.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides a valve configured for insertion on the proximal and distal sides of a heart valve annulus to replace the heart valve of a patient. The valve comprises a first substantially annular portion adapted to be positioned on a proximal side of the annulus of a patient and a second substantially annular portion adapted to be positioned on a distal side of the annulus of a patient, wherein at least one of the first and second substantially annular portions is movable towards the other portion to a clamped position to clamp around the annulus. The second portion has a flow restricting portion extending therefrom and is movable between a first position to permit the flow of blood and a second position to restrict the flow of blood. In one embodiment, the valve has a suture joining the first and second portions to draw the first and second portions into closer proximity and a cinch member to secure the suture to maintain the first and second portions in the clamped position. In another embodiment, the first and second portions are connected by a first segment which biases the first and second portions toward the clamped position.
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Citations
6 Claims
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1. A method of installing a replacement valve to replace a cardiac valve of a patient comprising:
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providing a valve having a first portion, a second portion and a movable flow restricting portion attached to the second portion; positioning the valve in a first insertion configuration inside a first catheter such that the flow restricting portion and the first and second portions are positioned in an elongated reduced profile position; inserting the first catheter through the femoral artery; advancing the first catheter around the aortic arch so that a distal end portion of the catheter is adjacent an annulus of a patient; ejecting a first portion of the valve from the catheter to position it on a first side of the annulus, the first portion moving to a second configuration for placement; ejecting a second portion of the valve on a second side of the annulus allowing the second portion to move to a second configuration, the flow restricting portion to move to a second placement configuration and the first and second portions to clamp around both respective sides of the annulus, the flow restricting portion being in the placement configuration to open and close to respectively permit and restrict blood flow; and tensioning a tightening member to place the first and second portions in closer proximity. - View Dependent Claims (2, 3, 5, 6)
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4. A method of installing a replacement valve to replace a cardiac valve of a patient comprising:
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providing a valve having a first portion, a second portion and a movable flow restricting portion attached to the second portion; positioning the valve in a first insertion configuration inside a first catheter such that the flow restricting portion and the first and second portions are positioned in an elongated reduced profile position; inserting the first catheter through the femoral artery; advancing the first catheter around the aortic arch so that a distal end portion of the catheter is adjacent an annulus of a patient; ejecting a first portion of the valve from the catheter to position it on a first side of the annulus, the first portion moving to a second configuration for placement; ejecting a second portion of the valve on a second side of the annulus allowing the second portion to move to a second configuration. the flow restricting portion to move to a second placement configuration and the first and second portions to clamp around both respective sides of the annulus, the flow restricting portion being in the placement configuration to open and close to respectively permit and restrict blood flow; and tensioning a suture connected to at least one of the first and second portions to tighten the first and second portions.
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Specification