Multiple telemetry and/or charging coil configurations for an implantable medical device system
First Claim
1. An external device for communicating with or providing power to an implantable medical device, comprising:
- a plurality of coils;
transceiver circuitry coupled to the plurality of coils; and
controller circuitry for controlling the transceiver circuitry by executing an algorithm, the algorithm comprising;
transmitting a signal via magnetic induction from a first of the plurality of coils and assessing receipt of the signal by the implantable medical device via magnetic induction at the first coil;
repeating the above step for subsequent of the plurality of coils;
activating at least one coil to telemeter data or power to the implantable medical device via magnetic induction based upon the assessed receipt of the signals.
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Accused Products
Abstract
An implantable medical device system for orientation-independent telemetry to and from the device are disclosed. The system includes an external controller which produces an electromagnetic field to induce a current in a coil in the implantable medical device and vise versa. In a preferred embodiment, the external controller comprises three orthogonal coils, each of which is potentially activated to generate or receive the electromagnetic field. Algorithms are disclosed to allow for the choice of one or more of the coils best suited for telemetry based on the chosen coil'"'"'s orientation with respect to the telemetry coil in the implantable medical device. Because all three of the orthogonal coils are potentially activated if necessary, the result is that at least one of the coils will be in a proper orientation with respect to the coil in the implantable medical device, thereby improving telemetry or power transfer efficiency.
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Citations
25 Claims
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1. An external device for communicating with or providing power to an implantable medical device, comprising:
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a plurality of coils; transceiver circuitry coupled to the plurality of coils; and controller circuitry for controlling the transceiver circuitry by executing an algorithm, the algorithm comprising; transmitting a signal via magnetic induction from a first of the plurality of coils and assessing receipt of the signal by the implantable medical device via magnetic induction at the first coil; repeating the above step for subsequent of the plurality of coils; activating at least one coil to telemeter data or power to the implantable medical device via magnetic induction based upon the assessed receipt of the signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An external device for communicating with or providing power to an implantable medical device, comprising:
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a plurality of coils; transceiver circuitry coupled to the plurality of coils; and controller circuitry for controlling the transceiver circuitry by executing an algorithm, the algorithm comprising; transmitting a first signal via magnetic induction from a first of the plurality of coils; if the first signal is satisfactorily received at the implantable medical device, activating the first coil to telemeter data or power to the implantable medical device via magnetic induction; if the first signal is not satisfactorily received, transmitting a second signal via magnetic induction from a second of the plurality of coils; and if the second signal is satisfactorily received at the implantable medical device, activating the second coil to telemeter data or power to the implantable medical device via magnetic induction. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification