Low frequency transcutaneous telemetry to implanted medical device
First Claim
Patent Images
1. A remote control system, comprising:
- a primary controller;
a primary telemetry transmitter energized by the primary controller and including a primary coil in electrical communication with capacitance to form a resonant tank circuit having peak resonance up to 100 kHz;
a secondary controller; and
a secondary telemetry receiver communicating received electromagnetic energy transferred from the primary telemetry transmitter to the secondary controller and including a secondary coil in electrical communication with capacitance to form a resonant tank circuit having peak resonance up to 100 kHz.
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Abstract
An implantable medical device advantageously utilizes low frequency (e.g., 100 kHz or below) for telemetry communication with an external control module avoiding power dissipation through eddy currents in a metallic case of an implant and/or in human tissue, thereby enabling smaller implants using a metallic case such as titanium and/or allow telemetry signals of greater strength for implantation to a greater depth.
369 Citations
19 Claims
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1. A remote control system, comprising:
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a primary controller;
a primary telemetry transmitter energized by the primary controller and including a primary coil in electrical communication with capacitance to form a resonant tank circuit having peak resonance up to 100 kHz;
a secondary controller; and
a secondary telemetry receiver communicating received electromagnetic energy transferred from the primary telemetry transmitter to the secondary controller and including a secondary coil in electrical communication with capacitance to form a resonant tank circuit having peak resonance up to 100 kHz. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 18, 19)
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10. An implantable medical device system, comprising:
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an external control module, comprising;
a primary telemetry coil having a resonant frequency up to 100 kHz, and a primary controller in electrical communication with the primary telemetry coil; and
an implantable medical device, comprising;
an enclosure, a secondary telemetry coil having a resonant frequency up to 100 kHz, and a secondary controller in electrical communication with the secondary telemetry coil.
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17. An implantable medical device responsive to an external primary telemetry coil inductively coupling a telemetry signal having a resonant frequency of up to 100 kHz, the implantable medical device comprising:
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an enclosure, a secondary telemetry coil having a resonant frequency of up to 100 kHz, and a secondary controller in electrical communication with the secondary TET telemetry coil.
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Specification