Method and device for treating dysfunctional cardiac tissue

Patent metadata

Field	Value
Publication number	US-2016262891-A1
Application number	US-201615043274-A
Country	US
Kind code	A1
Filing date	Feb 12, 2016
Priority date	Aug 19, 2005
Publication date	Sep 15, 2016
Grant 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.

First claim

1 .- 27 . (canceled)

28 . A patch for reducing a volume of a ventricles of a heart chamber comprising:
a main body that is positionable about dysfunctional tissue of the ventricle, the main body comprising a woven fabric material; and a deformable slit that extends upward from the main body, the deformable slit comprising a malleable metal material, the deformable slit being in the shape of an elongated ellipse that defines an opening through which the dysfunctional tissue is pulled, wherein:
opposing walls of the deformable slit are displaceable inwardly after the dysfunctional tissue is pulled through the opening to secure the patch about the dysfunctional tissue and reduce the volume of the ventricle; and
the opposing walls of the deformable slit comprise a more parallel configuration after the opposing walls are displaced inwardly.

29 . The patch of claim 28 , wherein the woven fabric material of the main body is Dacron.

30 . The patch of claim 28 , wherein the malleable metal material of the deformable slit is fully annealed stainless steel.

31 . The patch of claim 28 , further comprising one or more anchors that are attachable to the dysfunctional tissue and that are operable to pull the dysfunctional tissue through the opening of the deformable slit.

32 . The patch of claim 28 , further comprising a suction device that is attachable to the dysfunctional tissue and operable to pull the dysfunctional tissue through the opening of the deformable slit.

33 . A patch for reducing a volume of a ventricles of a heart chamber comprising:
a main body that is positionable about dysfunctional tissue of the ventricle; and a deformable slit that defines an opening through which the dysfunctional tissue is pulled, wherein the opening of the deformable slit is configured to be reduced after the dysfunctional tissue is pulled there through to secure the patch about the dysfunctional tissue and reduce the volume of the ventricle.

34 . The patch of claim 33 , wherein the main body comprises a woven fabric material.

35 . The patch of claim 34 , wherein the woven fabric material is Dacron.

36 . The patch of claim 33 , wherein the deformable slit comprises a malleable metal material.

37 . The patch of claim 36 , wherein the malleable metal material is fully annealed stainless steel.

38 . The patch of claim 33 , wherein the deformable slit has an initial elongated ellipse shape prior to reduction of the opening and a more parallel configuration after reduction of the opening.

39 . A method for reducing a volume of a ventricles of a heart chamber, the method comprising:
placing a patch having a deformable slit onto dysfunctional tissue; pulling the dysfunctional tissue through the deformable slit on the patch; and securing the tissue to the deformable slit.

40 . The method of claim 39 , further comprising positioning the deformable slit onto the dysfunctional tissue such that a center of the deformable slit is within 2-3 cm of the left anterior descending artery (LAD).

41 . The method of 40 , wherein the deformable slit is further positioned onto the dysfunctional cardia tissue so that a long axis of the deformable slit is generally parallel to the LAD.

42 . The method of 39 , further comprising pulling the dysfunctional tissue through the deformable slit using one or more anchors placed through the dysfunctional tissue.

43 . The method of 39 , further comprising pulling the dysfunctional tissue through the deformable slit using a suction device.

44 . The method of 39 , further comprising reducing an opening of the deformable slit after the dysfunctional tissue has been pulled through the deformable slit to hold the dysfunctional tissue in position, wherein reducing the opening of the deformable slit comprises moving opposing edges of the opening toward one another.

45 . The method of 39 , further comprising sewing the patch to an epicardial surface of the dysfunctional tissue.

46 . The method of 45 , further comprising suturing the deformable slit to the dysfunctional tissue pulled through the deformable slit.

Assignees

• Bioventrix Inc

Inventors

• Chin Sing-Fatt
• Annest Lon
• O'Reilly Robert

Classifications

• A61B17/0469

  Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery · CPC title

• A61B2017/06052

  Needle-suture combinations in which a suture is extending inside a hollow tubular needle, e.g. over the entire length of the needle · CPC title

• A61B17/1285

  for minimally invasive surgery · CPC title

• A61B2017/0404

  Buttons · CPC title

• A61F2/2487 Primary

  Devices within the heart chamber, e.g. splints · CPC title