Implantable cardiac motion powered piezoelectric energy source
First Claim
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1. An implantable cardiac motion powered energy source comprising:
- (a) a piezoelectric transducer that converts cardiac mechanical motion into electrical energy, wherein said piezoelectric transducer includes;
(i) a piezoelectric beam element, wherein said piezoelectric beam element is folded into a structure that comprises two beam parallel lengths that define an intervening void space;
(ii) a proof mass at one end of said beam element; and
(iii) a clamp element at another end of said beam element; and
(b) a storage element for storing electrical energy produced by said piezoelectric transducer.
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Abstract
Implantable cardiac motion powered piezoelectric energy sources are provided. An aspects of embodiments of the subject implantable energy sources is that they include a piezoelectric transducer that converts cardiac mechanical energy to electrical energy. The subject energy sources find use in a variety of applications, including providing power to a wide range of implantable devices.
53 Citations
22 Claims
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1. An implantable cardiac motion powered energy source comprising:
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(a) a piezoelectric transducer that converts cardiac mechanical motion into electrical energy, wherein said piezoelectric transducer includes; (i) a piezoelectric beam element, wherein said piezoelectric beam element is folded into a structure that comprises two beam parallel lengths that define an intervening void space; (ii) a proof mass at one end of said beam element; and (iii) a clamp element at another end of said beam element; and (b) a storage element for storing electrical energy produced by said piezoelectric transducer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification