Minimally invasive valve replacement system
First Claim
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1. A collapsible temporary valve for placement in a blood vessel or body cavity of a patient, the temporary valve comprising:
- a substantially cylindrical outer valve, permitting substantially unidirectional blood flow of the patient by opening in response to positive fluid flow pressure; and
an inner valve disposed within the outer valve, the inner valve opening in a direction opposite the outer valve and permitting a catheter or other device to pass through the temporary valve;
wherein the temporary valve is expandable to securely fit within the walls of the blood vessel or body cavity upon deployment.
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Abstract
Methods and systems for minimally invasive replacement of a valve. The system includes a collapsible valve and anchoring structure, devices and methods for expanding the valve anchoring structure, adhesive means to seal the valve to the surrounding tissue, a catheter-based valve sizing and delivery system, native valve removal means, and a temporary valve and filter assembly to facilitate removal of debris material. The valve assembly comprises a valve and anchoring structure for the valve, dimensioned to fit substantially within the valve sinus.
544 Citations
16 Claims
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1. A collapsible temporary valve for placement in a blood vessel or body cavity of a patient, the temporary valve comprising:
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a substantially cylindrical outer valve, permitting substantially unidirectional blood flow of the patient by opening in response to positive fluid flow pressure; and
an inner valve disposed within the outer valve, the inner valve opening in a direction opposite the outer valve and permitting a catheter or other device to pass through the temporary valve;
wherein the temporary valve is expandable to securely fit within the walls of the blood vessel or body cavity upon deployment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification