Aortic heart valve catheter
AssigneeThe United States of America as represented by the Department of Health, Education and Welfare
InventorsJohn W. Boretos, Robert A. Poirier
Life of this patent
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Abstract
An artificial valve remotely placeable in a blood vessel without major surgery to supplant the function of a malfunctioning natural valve including an expansible check valve remotely placed in a constricted configuration through the vessel and a remotely removable constraint for selective expansion of the check valve for sealing engagement thereof within the walls of the vessel at the desired location.
Claims8
A prosthetic valve device for remote placement in a major blood vessel to take over the function of a malfunctioning natural valve comprising:
- an expansible valve support;
- means biasing said support toward an open configuration to sealingly engage the interior walls of the blood vessel in which it is to be placed;
- check valve means in said support to block flow through said support in one direction;
- means to constrict said support in a closed configuration such that said device may be navigated through a blood vessel to a desired point of placement;
- means to remotely position said device through a blood vessel to a desired point of placement;
- and
- means to remotely remove said means to constrict from said support at a desired point of placement.
Dependencies are inferred from the claim text.