Methods and apparatus for endovascularly replacing a patient's heart valve
AssigneeSadra Medical, Inc.
InventorsAmr Salahieh, Ulrich R. Haug, Hans F. Valencia, Robert A. Geshlider, Tom Saul, Dwight P. Morejohn
Life of this patent
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Abstract
The present invention provides methods and apparatus for endovascularly replacing a patient's heart valve. The apparatus includes a replacement valve and an anchor having an expandable braid. In some embodiments, the expandable braid is fabricated from a single strand of wire. In some embodiments, the expandable braid comprises at least one turn feature. The anchor and the valve preferably are configured for endovascular delivery and deployment.
Claims12
An apparatus for replacing a heart valve, comprising:
- an expandable, braided anchor and a replacement heart valve secured to the expandable, braided anchor, and
- a deployment system;
- wherein the expandable, braided anchor has a delivery configuration within a delivery device, a partially-deployed self-expanded configuration, and a fully deployed configuration,
- wherein the expandable, braided anchor comprises a distal lock element disposed on a distal region of the expandable, braided anchor and a proximal lock element disposed on a proximal region of the expandable, braided anchor,
- wherein the deployment system is reversibly coupled to the expandable, braided anchor;
- and
- wherein the distal lock element and the proximal lock element are adapted to engage one another in the fully deployed configuration to lock the expandable, braided anchor in the fully deployed configuration, the distal lock element and the proximal lock element disengaged from one another when the expandable, braided anchor is in the delivery configuration.
An apparatus for replacing a heart valve, comprising:
- an expandable anchor having an unexpanded configuration and an expanded configuration, a proximal region and a distal region, the expandable anchor secured to a replacement heart valve, wherein the expandable anchor and the replacement heart valve are adapted to be endovascularly delivered within a delivery device to the vicinity of a heart valve,
- wherein the expandable anchor comprises:
- a braided shape memory material,
- a first edge,
- at least one buckle disposed at the proximal region of the expandable anchor, and
- at least one interlocking element, the at least one interlocking element being disengaged from the buckle in the unexpanded configuration and engaged to the at least one buckle in the expanded configuration,
- the braided shape memory material having closed ends, the closed ends defined by turns at the first edge,
- wherein the braided material defines a plurality of cells, at least a first set of cells at the closed ends of the braid having a different configuration than a second set of cells in the braid.
Dependencies are inferred from the claim text.