Cardiac device and methods of use thereof
First Claim
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1. A diastolic recoil device adapted for percutaneous delivery to a heart of a patient comprising a plurality of radially expandable ribs connected at their distal ends to a central hub, and a membrane coupled to the ribs, wherein the ribs are adapted to anchor to a wall of a ventricle of the heart to compress and store energy during systole and to self-expand during diastole to provide an elastic recoil force to the wall of the ventricle.
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Abstract
Devices and methods are described herein which are directed to the treatment of a patient'"'"'s heart having, or one which is susceptible to heart failure, to improve diastolic function.
247 Citations
47 Claims
- 1. A diastolic recoil device adapted for percutaneous delivery to a heart of a patient comprising a plurality of radially expandable ribs connected at their distal ends to a central hub, and a membrane coupled to the ribs, wherein the ribs are adapted to anchor to a wall of a ventricle of the heart to compress and store energy during systole and to self-expand during diastole to provide an elastic recoil force to the wall of the ventricle.
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22. A method of treating a patient suffering from a heart condition comprising:
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advancing percutaneously a collapsed diastolic recoil device comprising a plurality of expandable ribs connected at their distal ends to a central hub; self-expanding the ribs in a ventricle of the heart; securing the device to opposing walls of the ventricle thereby providing elastic support between the opposing ventricular walls; and storing energy provided by the ventricle in the ribs during systole and providing a delayed elastic recoil force to the opposing walls of the ventricle from the ribs during diastole. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method of treating a patient in need of more efficient diastolic filling, the method comprising:
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advancing percutaneously a collapsed diastolic recoil device comprising a plurality of expandable ribs connected at their distal ends to a central hub and a stem connected to and extending distally from the central hub, wherein the stem is adapted to space the central hub of the device a selected distance from a wall of a ventricle, wherein the ribs are stiffened relative to healthy ventricular walls to augment ventricle wall movement during diastole; self-expanding the ribs in the ventricle of the heart; securing the device to opposing walls of the ventricle; and compressing the plurality of ribs during systole and providing a corresponding elastic recoil force to the opposing walls during diastole.
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37. A diastolic recoil device adapted for percutaneous delivery to a ventricle of a heart of a patient comprising a plurality of radially expandable ribs coupled at their distal ends to a central hub, wherein the ribs are adapted to augment ventricle wall movement during diastole, and to provide a recoil force to the ventricular walls at a selected point during diastole that is delayed from the onset of diastole.
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38. A diastolic recoil device adapted for percutaneous delivery to a heart of a patient comprising:
a plurality of radially expandable resilient ribs connected at their distal ends to a central hub and one or more anchor elements at each of the proximal ends of the ribs adapted to secure the device to a selected area of a wall within a ventricle of the heart, wherein the ribs are adapted to support the wall and decrease the stress in the wall thereby limiting remodeling of the heart, and a stem connected to and extending distally from the central hub, wherein the stem is adapted to space the central hub of the device a selected distance from the wall of the ventricle.
- 39. A diastolic recoil device adapted for percutaneous delivery to a heart of a patient comprising a plurality of radially expandable ribs connected at their distal ends to a central hub and a membrane coupled to the ribs, wherein the ribs are adapted to store energy and reduce diastolic pressure of a ventricle of the heart when disposed in the ventricle.
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42. A method of treating a heart of a patient comprising:
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advancing percutaneously a collapsed diastolic recoil device comprising a plurality of radially expandable ribs connected at their distal ends to a central hub and having an anchor element at a proximal end of each of the ribs and a membrane coupled to the expandable ribs; allowing the ribs to self-expand in a ventricle of the heart; and securing the device to a selected area of a wall of the ventricle with the anchor elements thereby reducing diastolic pressure of the ventricle of the heart.
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43. A diastolic recoil device adapted for percutaneous delivery to a heart of a patient comprising:
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a plurality of radially expandable ribs connected at their distal ends to a central hub; a stem connected to and extending distally from the central hub, wherein the stem is adapted to space the central hub of the device a selected distance from a wall of a ventricle; and a plurality of anchor elements attached to a plurality of the ribs at their proximal ends, the anchor elements being adapted to secure the device to the wall of the ventricle of the heart; and wherein the device is adapted to reduce a volume of the ventricle to improve a pressure-volume relationship of the ventricle of the heart.
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- 44. A diastolic recoil device comprising a plurality of radially expandable ribs connected at their distal ends to a central hub and a membrane coupled to the ribs, the device being adapted to be delivered percutaneously to and anchored within the interior of a ventricle of a patient'"'"'s heart to span a region of the ventricle, the radially expandable ribs being adapted to deform from a first shape to a second shape during systole and to return to the first shape a selected point after diastole begins to assist in expansion of the ventricle.
Specification