Device, system, and method for transcatheter treatment of valvular regurgitation with secondary anchors
AssigneePolares Medical Inc.
InventorsAlexander K. Khairkhahan, Jacques Essinger, Alan Klenk
Life of this patent
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Abstract
The invention relates to a device for use in the transcatheter treatment of mitral valve regurgitation, specifically a coaptation assistance element for implantation across the valve; a system including the coaptation assistance element and anchors for implantation; a system including the coaptation assistance element and delivery catheter; and a method for transcatheter implantation of a coaptation element across a heart valve.
Claims20
A method of delivering a coaptation assistance element for treating mal-coaptation of a heart valve of a heart, the heart valve having an annulus, the method comprising:
- positioning the coaptation assistance element comprising a first surface and an opposed second surface, each surface bounded by a first lateral edge, a second lateral edge, an inferior edge, and a superior edge;
- rotating a secondary anchor relative to the coaptation assistance element to engage a first segment of coils of the secondary anchor with the annulus, wherein the first segment of coils comprises a first pitch, wherein further rotation of the secondary anchor engages a second segment of coils of the secondary anchor with the coaptation assistance element which eliminates a gap between the coaptation assistance element and tissue of the heart, wherein the second segment of coils comprises a second pitch, wherein the second segment of coils prevents the secondary anchor from unscrewing with cyclical motion of the tissue.
A method of delivering a coaptation assistance element for treating mal-coaptation of a heart valve of a heart, the heart valve having an annulus, the method comprising:
- positioning the coaptation assistance element comprising a first surface and an opposed second surface, each surface bounded by a first lateral edge, a second lateral edge, an inferior edge, and a superior edge;
- rotating a secondary anchor relative to the coaptation assistance element to engage a first segment of coils of the secondary anchor with the annulus, wherein the first segment of coils comprises a first pitch, wherein further rotation of the secondary anchor engages a second segment of coils of the secondary anchor with the coaptation assistance element which locks the secondary anchor to the coaptation assistance element, wherein the second segment of coils comprises a second pitch, wherein the second segment of coils has no gaps between coils of the second segment of coils.
A method of delivering a coaptation assistance element for treating mal-coaptation of a heart valve of a heart, the heart valve having an annulus, the method comprising:
- positioning the coaptation assistance element comprising a first surface and an opposed second surface, each surface bounded by a first lateral edge, a second lateral edge, an inferior edge, and a superior edge;
- rotating a secondary anchor relative to the coaptation assistance element to engage a first segment of coils of the secondary anchor with the annulus, wherein the first segment of coils comprises a first pitch, wherein further rotation of the secondary anchor engages a second segment of coils of the secondary anchor with the coaptation assistance element which locks the secondary anchor to the coaptation assistance element, wherein the second segment of coils comprises a second pitch, wherein the difference between the first pitch and the second pitch is a distance that the coaptation assistance element is pulled toward the tissue for each rotation of the secondary anchor.
Dependencies are inferred from the claim text.