Intravascular Stimulation System With Wireless Power Supply
First Claim
1. An apparatus for artificially stimulating internal tissue of an animal, said apparatus comprising:
- an intravascular medical device for implantation in blood vasculature of the animal and comprising a power supply, first and second stimulation electrodes for contacting the tissue, a control circuit which controls operation of the intravascular medical device, a stimulation signal generator connected to the control circuit for producing an electrical stimulation pulse and a voltage intensifier which receives and increases the voltage of the electrical stimulation pulse to produce an output pulse that is applied to the first and second stimulation electrodes.
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Accused Products
Abstract
A medical device adapted for implantation into a patient receives electrical power from an extravascular power supply. The medical device has a first receiver for a first radio frequency (RF) signal from which energy is extracted to power the medical device, and a second RF signal carries an indication of an amount of that extracted energy. The extravascular power supply includes a source of electrical power and a power transmitter that emits the first RF signal which is varied in response to the indication from the second radio frequency signal. Animal physiological data also can be carried by the second RF signal. The medical device includes a system that monitors the effects of tissue stimulation and regulates subsequent stimulation accordingly.
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Citations
17 Claims
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1. An apparatus for artificially stimulating internal tissue of an animal, said apparatus comprising:
an intravascular medical device for implantation in blood vasculature of the animal and comprising a power supply, first and second stimulation electrodes for contacting the tissue, a control circuit which controls operation of the intravascular medical device, a stimulation signal generator connected to the control circuit for producing an electrical stimulation pulse and a voltage intensifier which receives and increases the voltage of the electrical stimulation pulse to produce an output pulse that is applied to the first and second stimulation electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17-29. -29. (canceled)
Specification