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 having a biocompatible external surface and that is configured to be implanted within a body of a patient;
a transceiver disposed within the hermetic housing and comprising a first lead and a second lead; and
a communication antenna circuit defined by a Q factor and disposed within the hermetic housing, the communication antenna circuit coupled to the first lead and the second lead, the communication antenna circuit having a first path and a second path parallel to the first path, the first path comprising a first capacitor, and the second path comprising;
a second capacitor;
a radiating element; and
a resistor, wherein the second capacitor, the resistor, and the radiating element are arranged in series, and wherein the Q factor of the communication antenna circuit is limited at a resonant frequency by the resistor.
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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.
268 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 having a biocompatible external surface and that is configured to be implanted within a body of a patient; a transceiver disposed within the hermetic housing and comprising a first lead and a second lead; and a communication antenna circuit defined by a Q factor and disposed within the hermetic housing, the communication antenna circuit coupled to the first lead and the second lead, the communication antenna circuit having a first path and a second path parallel to the first path, the first path comprising a first capacitor, and the second path comprising; a second capacitor; a radiating element; and a resistor, wherein the second capacitor, the resistor, and the radiating element are arranged in series, and wherein the Q factor of the communication antenna circuit is limited at a resonant frequency by the resistor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of wireless communication of data between an implantable neurostimulator and an external device, the method comprising:
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implanting the neurostimulator in a patient'"'"'s body, the implantable neurostimulator comprising; a hermetic housing; a transceiver disposed within the hermetic housing and comprising a first lead and a second lead; and an antenna circuit disposed within the hermetic housing and coupleable to the first lead and the second lead, the antenna circuit having a first path and a second path parallel to the first path, the first path comprising a first capacitor, and the second path comprising; a second capacitor; a radiating element; and a resistor, wherein the second capacitor, the resistor, and the radiating element are arranged in series, wherein the antenna circuit has a resonant frequency, and wherein a Q factor of the antenna circuit is limited at the resonant frequency by the; and receiving data wirelessly transmitted from the external device at the implantable neurostimulator, wherein the data is transmitted at a transmission frequency and is configured to control delivery of one or more electrical pulses to a target region within the patient'"'"'s body. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification