Antenna and methods of use for an implantable nerve stimulator
First Claim
1. An implantable neurostimulator for delivering one or more electrical pulses to a target region within a patient'"'"'s body according to a program received via wireless communication with an external device, the implantable neurostimulator comprising:
- a hermetic housing configured to be implanted within a body of a patient;
a transceiver disposed within the hermetic housing; and
a communication antenna circuit having a fixed resonant frequency corresponding to a transmission frequency of the external device, wherein the communication antenna circuit comprises a resistor positioned to limit a Q factor of the communication antenna circuit at resonant frequency.
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Accused Products
Abstract
A pulse generator that includes a communications module is disclosed herein. The communication module includes a transceiver and an antenna circuit. The antenna circuit includes a first pathway having a capacitor and a second, parallel pathway including a capacitor, and a resistor, and a radiating element arranged in series. The antenna circuit is tuned to have a resonant frequency corresponding to a desired transmission frequency and a bandwidth corresponding to shifts in the resonant frequency arising from the implantation of the antenna.
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Citations
20 Claims
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1. An implantable neurostimulator for delivering one or more electrical pulses to a target region within a patient'"'"'s body according to a program received via wireless communication with an external device, the implantable neurostimulator comprising:
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a hermetic housing configured to be implanted within a body of a patient; a transceiver disposed within the hermetic housing; and a communication antenna circuit having a fixed resonant frequency corresponding to a transmission frequency of the external device, wherein the communication antenna circuit comprises a resistor positioned to limit a Q factor of the communication antenna circuit at resonant frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of wireless communication between an implantable neurostimulator and an external device, the method comprising:
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receiving data at a transmission frequency with a communication antenna circuit of the implantable neurostimulator from the external device, the communication antenna circuit having a first resonant frequency when the implantable neurostimulator is ex vivo and a second resonant frequency when the implantable neurostimulator is in vivo, the communication antenna circuit comprising a resistor positioned in the communication antenna circuit such that an output power of the communication antenna circuit at both the first and second resonant frequencies is greater than the half-power point of the communication antenna circuit; modifying control of the implantable neurostimulator according to the received data; and delivering at least electrical pulse to a target tissue via at least one stimulation lead according to the modified control of the implantable neurostimulator. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification