Stress reduction apparatus and method
First Claim
Patent Images
1. A device for reducing heart wall stress, comprising:
- a first means for reducing heart wall stress which engages throughout the cardiac cycle; and
second means for reducing heart wall stress which begins to engage the heart wall during diastolic filling.
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Abstract
The device and method for reducing heart wall stress. The device can be one which reduces wall stress throughout the cardiac cycle or only a portion of the cardiac cycle. The device can be configured to begin to engage, to reduce wall stress during diastolic filling, or begin to engage to reduce wall stress during systolic contraction. Furthermore, the device can be configured to include at least two elements, one of which engages full cycle and the other which engages only during a portion of the cardiac cycle.
719 Citations
12 Claims
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1. A device for reducing heart wall stress, comprising:
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a first means for reducing heart wall stress which engages throughout the cardiac cycle; and second means for reducing heart wall stress which begins to engage the heart wall during diastolic filling. - View Dependent Claims (2, 3)
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4. A method of reducing heart wall stress, comprising the steps of:
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providing a device having at least one heart engaging member; placing the heart engaging member on the heart such that the shape of a cross section of the left ventricle is changed throughout the cardiac cycle; providing a second device having at least one heart engaging member; and placing the heart engaging member of the second device on the heart such that a second device begins to engage the heart during diastolic filling.
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5. A device for treating a heart, comprising:
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a member adapted to extend around a portion of a heart wall, the member including a first end and a second end; and an anchor disposed on each of said first and said second ends for coupling said member to the heart wall to change a cross-sectional shape of the heart throughout a cardiac cycle, and wherein said member between said ends exerts a compressive force on the heart during a first portion of a cardiac cycle, and said member exerts substantially no compressive force on the heart during a second portion of said cardiac cycle. - View Dependent Claims (6, 7, 8)
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9. A device for treating a heart, comprising:
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a first member adapted to be coupled to said heart such that a cross-sectional shape of a ventricle of the heart is changed throughout a cardiac cycle; and a second member adapted to be coupled to said heart such that the second member exerts a compressive force on said heart during a first portion of the cardiac cycle, and the second member exerts substantially no compressive force on said heart during a second portion of said cardiac cycle. - View Dependent Claims (10, 11, 12)
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Specification