Cardiac sleeve apparatus, system and method of use
First Claim
Patent Images
1. A cardiac assist sleeve, comprising:
- first elongate strips of a first shape-memory alloy that extend substantially in a first direction; and
second elongate strips of a second shape-memory alloy that intersect and pass the first elongate strips in a second direction, the first elongate strips and the second elongate strips define a volume that changes as at least one of the first elongate strips and the second elongate strips reversibly change shape.
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Abstract
Cardiac assist sleeve and methods for using and making the cardiac assist sleeve that includes first elongate strips and second elongate strips of memory alloy that change shape to change a volume of cardiac assist sleeve.
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Citations
30 Claims
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1. A cardiac assist sleeve, comprising:
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first elongate strips of a first shape-memory alloy that extend substantially in a first direction; and
second elongate strips of a second shape-memory alloy that intersect and pass the first elongate strips in a second direction, the first elongate strips and the second elongate strips define a volume that changes as at least one of the first elongate strips and the second elongate strips reversibly change shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of forming a cardiac assist sleeve, comprising:
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arranging first elongate strips of a first shape-memory alloy in substantially a first direction;
arranging second elongate strips of a second shape-memory alloy to intersect and pass the first elongate strips in a second direction; and
securing a first end of the first elongate strips around a collar. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A method of using a cardiac assistance device, comprising:
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positioning a cardiac assist sleeve adjacent a left ventricle of a heart, where the cardiac assist sleeve includes;
first elongate strips of a first shape-memory alloy that extend substantially in a first direction; and
second elongate strips of a second shape-memory alloy that intersect and pass the first elongate strips in a second direction, the first elongate strips and the second elongate strips define a volume to receive the left ventricle of the heart;
securing a portion of the cardiac assist sleeve to the heart; and
assisting the left ventricle of the heart by reversible changes in the shape of at least one of the first elongate strips and the second elongate strips to change the volume of the cardiac assist sleeve. - View Dependent Claims (27, 28, 29, 30)
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Specification