Method and device for treating dysfunctional cardiac tissue
Inventors
Chin, Sing-Fatt • Annest, Lon • O'Reilly, Robert
Assignees
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Publication Number
US-10335279-B2
Publication Date
2019-07-02
Expiration Date
Abstract
Various methods and devices are provided for reducing the volume of the ventricles of the heart. In one embodiment, a method for reducing the ventricular volume of a heart chamber is provided including the steps of inserting an anchoring mechanism onto dysfunctional cardiac tissue, deploying one or more anchors into the dysfunctional cardiac tissue, raising the dysfunctional cardiac tissue using the anchors, and securing the anchors to hold the dysfunctional cardiac tissue in place. Further, a device for reducing the volume of the ventricles of a heart chamber is provided where the device has one or more clips for placement on dysfunctional cardiac tissue of a heart, one or more anchors for deployment and securement into the dysfunctional cardiac tissue, and a lifting mechanism for raising the one or more anchors and the dysfunctional cardiac tissue.
Core Innovation
The invention provides a patch and related approach for reducing a volume of a ventricle of a heart chamber by positioning a main body about dysfunctional tissue. The patch includes a woven fabric material main body and a deformable slit that extends upward from the main body. The deformable slit comprises a malleable metal material and has a shape of an elongated ellipse forming a continuous, closed loop configured to allow the dysfunctional tissue to be pulled through the loop.
Opposing walls of the deformable slit are configured to be displaced inwardly after the dysfunctional tissue is pulled through the loop, to secure the patch about the dysfunctional tissue and reduce the volume of the ventricle. After displacement inwardly, the opposing walls comprise a more parallel configuration. In another patch embodiment, a deformable slit forms a continuous, closed loop with an opening configured to be reduced after the dysfunctional tissue is pulled therethrough to secure the patch about the dysfunctional tissue and reduce the volume of the ventricle.
A method is also provided for reducing ventricle volume by placing a patch having a deformable slit and an outward flange around the deformable slit on dysfunctional tissue, where the outward flange is attached to and extends continuously around an entire periphery of the deformable slit and the patch forms a continuous, closed loop. The method includes pulling the dysfunctional tissue through the deformable slit on the patch and securing the tissue to the deformable slit.
Claims Coverage
The independent claims cover three main inventive areas: a patch with a woven fabric material main body and an elongated ellipse deformable slit forming a continuous, closed loop; a patch in which a continuous closed loop and an opening in a deformable slit are reduced after tissue is pulled through; and a method for reducing ventricle volume by placing a patch on dysfunctional tissue, pulling tissue through a deformable slit, and securing the tissue to the slit.
Woven-fabric main body with elongated-ellipse closed-loop deformable slit
A patch for reducing a volume of a ventricle comprising a main body positionable about dysfunctional tissue, the main body comprising a woven fabric material; and a deformable slit extending upward from the main body, the deformable slit comprising a malleable metal material, the deformable slit having a shape of an elongated ellipse and forming a continuous, closed loop configured to allow the dysfunctional tissue to be pulled through the loop, wherein the woven fabric material extends continuously around the loop.
Inward displacement to secure tissue via more parallel slit walls
Opposing walls of the deformable slit are configured to be displaced inwardly after the dysfunctional tissue is pulled through the loop to secure the patch about the dysfunctional tissue and reduce the volume of the ventricle, wherein the opposing walls of the deformable slit comprise a more parallel configuration after the opposing walls are displaced inwardly.
Continuous periphery attachment and opening reduction after tissue passage
A patch for reducing a volume of a ventricle comprising a main body positionable about dysfunctional tissue; and a deformable slit forming a continuous, closed loop, wherein the loop defines an opening that allows the dysfunctional tissue to be pulled through the opening, wherein the main body is attached to the deformable slit and extends continuously around an entire periphery of the deformable slit, and wherein the opening of the deformable slit is configured to be reduced after the dysfunctional tissue is pulled therethrough to secure the patch about the dysfunctional tissue and reduce the volume of the ventricle.
Placing patch, pulling tissue through deformable slit, and securing tissue to the slit
A method for reducing a volume of a ventricle of a heart chamber comprising placing a patch having a deformable slit and an outward flange around the deformable slit onto dysfunctional tissue, wherein the outward flange is attached to and extends continuously around an entire periphery of the deformable slit, and wherein the patch forms a continuous, closed loop; pulling the dysfunctional tissue through the deformable slit on the patch; and securing the tissue to the deformable slit.
Across the independent claims, the coverage centers on a heart-ventricle volume-reduction patch and method that use a deformable slit forming a continuous closed loop to receive dysfunctional tissue. The patch secures the tissue by reducing the slit opening, either by inward displacement of opposing walls to achieve a more parallel configuration or by reducing an opening after tissue passage, while the patch main body and outward flange are attached around the deformable slit periphery.
Stated Advantages
Secure the patch about the dysfunctional tissue and reduce the volume of the ventricle.
Documented Applications
Reducing a volume of a ventricle of a heart chamber by excluding/reducing volume associated with dysfunctional tissue.
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