Systems and Methods for Affixing A Prosthetic to Tissue
AssigneeMicro Interventional Devices, Inc.
InventorMichael P. Whitman
Life of this patent
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Abstract
Systems and methods recited herein provide for affixation of a prosthetic valve to surrounding tissue, by at least one anchor and an anchor deployment device. The prosthetic valve device may be compliant with native tissue and may receive the at least one anchor in at least one anchor receptacle to affix the prosthetic valve to native tissue. The anchor may include a distal tip, a proximal head, and a tension component, such that upon deployment into tissue the tension component is situated in a tensioned state to exert a pulling force on the distal end of the anchor.
Claims23
A surgical anchor, comprising:
- a distal end tapered to a distal tip configured to pierce and anchor into tissue;
- a proximal head;
- and
- a tension component integrally connected with the distal end and the proximal head;
- wherein the tension component is configured to exert a force on the proximal head when the distal end is anchored into the tissue.
A surgical device, comprising:
- an anchor, wherein the anchor includes:
- a distal end tapered to a distal tip configured to pierce and anchor tissue;
- a proximal head having a width greater than a width of a corresponding anchor receptacle of a prosthetic valve;
- and
- a tension component between the distal end and the proximal head;
- wherein the distal end of the anchor is configured to be driven by a deployment device through the corresponding anchor receptacle of the prosthetic valve into tissue adjacent to the prosthetic valve, and further wherein a proximal end of the proximal head of the deployed anchor is configured to be brought into apposition with the corresponding anchor receptacle, such that, after deployment of the anchor into tissue, the tension component is in a tensioned state to exert a pulling force on the proximal head of the anchor so that the proximal head acting on the anchor receptacle of the prosthetic valve will approximate the prosthetic valve with the tissue.
A deployment device, comprising:
- a retractable sheath covering a cavity for housing a prosthetic valve in a retracted state;
- a plurality of deployment arms, each arm including a cavity for housing a surgical anchor;
- a force delivery device;
- and
- a shaft connecting the force delivery device to the deployment arms;
- wherein each of the deployment arms is configured to rotate from a retracted position aligned with an axis of the deployment device to a deployed position directed radially away from the axis;
- and
- wherein the force delivery device is configured to exert a force through the shaft and the deployment arms to drive the surgical anchor into tissue from the cavity of the deployment arms.
A prosthetic valve, comprising:
- a plurality of anchor receptacles;
- a plurality of inflow cells situated in the proximal direction of the prosthetic valve, wherein the inflow cells are malleable;
- and
- a plurality of annular cells situated medially in the prosthetic valve, forming a circular outflow track, wherein the annular cells are more rigid than the inflow cells;
- and
- a plurality of leaflet posts integral to, and extending distally beyond, the annular cells in the outflow direction of the prosthetic valve, wherein the leaflet posts are more rigid than the annular cells.
A prosthetic valve, comprising:
- a plurality of inflow cells situated in the proximal direction of the prosthetic valve;
- and
- a plurality of ring struts extending radially from the inflow cells;
- wherein the ring struts lay flat to the prosthetic valve when retracted, and form a ring around the inflow cells of the valve when deployed.
Dependencies are inferred from the claim text.