NEUROSTIMULATOR
First Claim
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1. An implantable neurostimulator comprising:
- a first electrode electrically coupled to a first piezoelectric material;
a second electrode electrically coupled to the first piezoelectric material;
a third electrode electrically coupled to a second piezoelectric material;
a fourth electrode electrically coupled to the second piezoelectric material;
where the first piezoelectric material is configured to provide an electrical potential to biological tissue through the first and second electrodes in response to an ultrasound signal;
where the second piezoelectric material is configured to provide an electrical potential to biological tissue through the third and fourth electrodes in response to an ultrasound signal;
where the first and second piezoelectric materials have different resonant frequencies; and
where the first piezoelectric material is a crystal.
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Abstract
Methods and devices for stimulating nerves are disclosed. In one embodiment adapted for stimulating excitable tissue, the invention includes drive circuitry, an acoustic transducer and a pair of electrodes.
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Citations
17 Claims
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1. An implantable neurostimulator comprising:
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a first electrode electrically coupled to a first piezoelectric material; a second electrode electrically coupled to the first piezoelectric material; a third electrode electrically coupled to a second piezoelectric material; a fourth electrode electrically coupled to the second piezoelectric material; where the first piezoelectric material is configured to provide an electrical potential to biological tissue through the first and second electrodes in response to an ultrasound signal; where the second piezoelectric material is configured to provide an electrical potential to biological tissue through the third and fourth electrodes in response to an ultrasound signal; where the first and second piezoelectric materials have different resonant frequencies; and where the first piezoelectric material is a crystal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification