Method and device for treating dysfunctional cardiac tissue
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.
1. An apparatus for reducing a volume of a ventricle of a heart, the apparatus comprising:
a clamp defining an opening;
a cap that is coupled with the clamp, the cap being positionable on cardiac tissue of a wall of the heart while the cap is in a first state and that is reconfigurable to a second state to pull the cardiac tissue through the opening and into a volume defined by the cap to reduce the volume of the ventricle; and
an anchor configured to pull the cardiac tissue towards the cap and into contact with the cap;
wherein when the cap is in the second state, the clamp is positioned on a periphery of the cap and the cap is configured to cover the cardiac tissue.
2. The apparatus of claim 1 , wherein the cap further comprises one or more protrusions disposed at a periphery of the cap, the one or more protrusions being configured to grip the cardiac tissue.
3. A method for reducing a volume of a ventricle of a heart, the method comprising:
placing a cap on cardiac tissue of the ventricle of the heart while the cap is in a first state;
reconfiguring the cap to a second state to bring the cardiac tissue into a volume defined by the cap, wherein the cardiac tissue is folded inside the volume to reduce the volume of the ventricle of the heart; and
clamping opposing portions of the cardiac tissue with a clamp such that the opposing portions contact each other and such that the folded cardiac tissue remains inside the volume defined by reconfiguring the cap to the second state;
wherein when the cap is in the second state, the clamp is positioned on a periphery of the cap and the cap covers the cardiac tissue between the opposing portions of the cardiac tissue.
4. An apparatus for reducing a volume of a ventricle of a heart, the apparatus comprising:
a clamp defining an opening; and
a cap that is coupled with the clamp, the cap being positionable on cardiac tissue of a wall of the heart while the cap is in a first state and that is reconfigurable to a second state to pull the cardiac tissue through the opening and into a volume defined by the cap to reduce the volume of the ventricle;
wherein:
when the cap is in the second state, the clamp is positioned on a periphery of the cap and the cap is configured to cover the cardiac tissue;
the clamp is configured to bring opposing portions of the cardiac tissue towards and into contact with each other; and
the clamp is configured to be removably received in a slot of the cap.
5. An apparatus for reducing a volume of a ventricle of a heart, the apparatus comprising:
a clamp defining an opening; and
a cap that is coupled with the clamp, the cap being positionable on cardiac tissue of a wall of the heart while the cap is in a first state and that is reconfigurable to a second state to pull the cardiac tissue through the opening and into a volume defined by the cap to reduce the volume of the ventricle;
wherein:
when the cap is in the second state, the clamp is positioned on a periphery of the cap and the cap is configured to cover the cardiac tissue;
the clamp is configured to bring opposing portions of the cardiac tissue towards and into contact with each other; and
the clamp forms an integral part of the cap and is configured to exert forces to reconfigure the cap into the second state and to maintain the cap in the second state.
6. An apparatus for reducing a volume of a ventricle of a heart, the apparatus comprising:
a clamp defining an opening; and
a cap that is coupled with the clamp, the cap being positionable on cardiac tissue of a wall of the heart while the cap is in a first state and that is reconfigurable to a second state to pull the cardiac tissue through the opening and into a volume defined by the cap to reduce the volume of the ventricle;
wherein when the cap is in the second state, the clamp is positioned on a periphery of the cap and the cap is configured to cover the cardiac tissue; and
wherein the clamp comprises a spring configured to reconfigure the cap into the second state and to maintain the cap in the second state.