Powering of an implantable medical therapy delivery device using far field radiative powering at multiple frequencies
First Claim
1. A method comprising:
- receiving a first far field radiative signal in a first frequency band and a second far field radiative signal in a second frequency band at an implantable medical device;
rectifying the received first far field radiative signal and the received second far field radiative signal to provide a voltage;
using the provided voltage to charge a charge storage element of the implantable medical device;
detecting whether a charge stored at the charge storage element satisfies a threshold; and
in response to detecting that the charge stored at the charge storage element satisfies the threshold, providing a therapy to a patient using a therapy delivery unit of the implantable medical device, wherein the therapy delivery unit receives power from the charge storage element.
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Accused Products
Abstract
A particular implantable device may include one or more antennas configured to receive a first far field radiative signal and a second far field radiative signal. The one or more antennas may be configured to receive the first far field radiative signal in a first frequency band and to receive the second far field radiative signal in a second frequency band. The implantable device may include a voltage rectifier configured to rectify the received first far field radiative signal and the received second far field radiative signal to provide a rectified voltage signal. The implantable device may further include a charge storage element operative to receive the rectified voltage signal and to store charge responsive to the rectified voltage signal. The implantable device may also include a therapy delivery unit powered by the charge storage element. The therapy delivery unit may be operative to deliver a therapy to a patient.
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Citations
20 Claims
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1. A method comprising:
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receiving a first far field radiative signal in a first frequency band and a second far field radiative signal in a second frequency band at an implantable medical device; rectifying the received first far field radiative signal and the received second far field radiative signal to provide a voltage; using the provided voltage to charge a charge storage element of the implantable medical device; detecting whether a charge stored at the charge storage element satisfies a threshold; and in response to detecting that the charge stored at the charge storage element satisfies the threshold, providing a therapy to a patient using a therapy delivery unit of the implantable medical device, wherein the therapy delivery unit receives power from the charge storage element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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receiving a first far field radiative signal in a first frequency band and a second far field radiative signal in a second frequency band at an implantable medical device; rectifying the received first far field radiative signal and the received second far field radiative signal to provide a voltage; modifying the voltage to provide an increased voltage; using the provided voltage to charge a charge storage element of the implantable medical device; detecting whether a charge stored at the charge storage element satisfies a threshold; and in response to detecting that the charge stored at the charge storage element satisfies the threshold, providing a therapy to a patient using a therapy delivery unit of the implantable medical device, wherein the therapy delivery unit receives power from the charge storage element. - View Dependent Claims (17, 18, 19, 20)
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Specification