Methods and systems for heart valve therapy
AssigneeCaisson Interventional, LLC
InventorsCyril J. Schweich, Jr., Todd J. Mortier
Life of this patent
Estimating the term…
Abstract
Systems and methods for medical interventional procedures, including approaches to valve implantation. In one aspect, the methods and systems involve a modular approach to mitral valve therapy.
Claims20
A trans-catheter mitral valve replacement system for a native mitral valve with native mitral valve leaflets that provide a valve function for closing during systole and opening to flow during diastole at an annulus between a left atrium and a left ventricle, the system comprising:
- an anchor assembly movable from a compressed configuration for trans-catheter delivery into the left atrium to an expanded configuration for engagement with the annulus and with a sub-annular gutter adjacent to where the native mitral valve leaflets remain attached to the annulus, the anchor assembly having an expandable frame comprising:
- (i) at least three sub-annular anchor feet, (ii) a sub-annular hub coupled by support arms to the at least three sub-annular anchor feet, and (iii) a supra-annular apron structure positionable in the left atrium while the at least three sub-annular anchor feet are positioned in the sub-annular gutter;
- and
- an artificial valve assembly having a tri-leaflet structure for controlling blood flow and a frame expandable from a first configuration for trans-catheter delivery of the artificial valve assembly into the left atrium while the anchor assembly is in the expanded configuration to an operative configuration in which the artificial valve assembly is mechanically attached with the anchor assembly;
- wherein the anchor assembly is movable to the expanded configuration, before said trans-catheter delivery of the artificial valve assembly, to engage with the annulus and the sub-annular gutter.
A trans-catheter mitral valve replacement system for a native mitral valve with a valve function for closing during systole and opening to flow during diastole at an annulus between a left atrium and a left ventricle, the system comprising:
- an anchor assembly movable from a compressed configuration for trans-catheter delivery into the left atrium to an expanded configuration for engagement with the annulus and a sub-annular gutter adjacent to where native mitral valve leaflets meet the annulus, the anchor assembly having an expandable frame comprising:
- (i) at least three sub-annular anchor feet, (ii) a sub-annular hub coupled by support arms to the at least three sub-annular anchor feet, and (iii) a supra-annular apron structure positionable in the left atrium while the at least three sub-annular anchor feet are positioned in the sub-annular gutter;
- and
- an artificial valve assembly having a tri-leaflet structure for controlling blood flow and a frame expandable from a first configuration for trans-catheter delivery of the artificial valve assembly into the left atrium while the anchor assembly is in the expanded configuration to an operative configuration in which the artificial valve assembly is mechanically attached with the anchor assembly,
- wherein the anchor assembly is movable to the expanded configuration, before said trans-catheter delivery of the artificial valve assembly, to engage with the annulus and the sub-annular gutter, and
- wherein the supra-annular apron structure is positionable in the left atrium while the support arms extend downwardly away from the at least three sub-annular anchor feet positioned in the sub-annular gutter toward the sub-annular hub.
Dependencies are inferred from the claim text.