TRANSCUTANEOUS ENERGY TRANSFER COIL WITH INTEGRATED RADIO FREQUENCY ANTENNA
First Claim
Patent Images
1. An implantable coil for use in a transcutaneous energy transfer system, comprising:
- a coil winding adapted to produce an electric current in the presence of a time-varying magnetic field operating at a first frequency;
circuitry in electrical communication with the coil winding adapted to receive and condition the electric current produced in the coil winding; and
a radio frequency (RF) antenna configured to operate at a second frequency different from the first frequency.
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Abstract
Improved methods and devices for communicating via radio frequency (RF) in transcutaneous energy transfer (TET) systems is provided. In particular, an improved implantable coil for use in a transcutaneous energy transfer (TET) system is provided having an integrated radio frequency (RF) antenna. Further, a method of communicating between an external device and an implanted device having a plurality of secondary coils with integrated RF antennas is also provided.
33 Citations
25 Claims
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1. An implantable coil for use in a transcutaneous energy transfer system, comprising:
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a coil winding adapted to produce an electric current in the presence of a time-varying magnetic field operating at a first frequency; circuitry in electrical communication with the coil winding adapted to receive and condition the electric current produced in the coil winding; and a radio frequency (RF) antenna configured to operate at a second frequency different from the first frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An transcutaneous energy transfer system, comprising:
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a secondary coil adapted for disposition in a patient, comprising; a coil winding adapted to receive transcutaneous energy; and a radio frequency (RF) antenna; a primary coil configured to transmit transcutaneous energy to a secondary coil; and a controller, also adapted for disposition in a patient, comprising circuitry to direct electric current from the secondary coil to charge a storage device and/or power an implantable assist device. - View Dependent Claims (20, 21, 22, 23)
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24. A method of communicating between an external device and an implanted device in a transcutaneous energy transfer (TET) system comprising:
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scanning among a plurality of implanted secondary coils each having integrated radio frequency (RF) antennas to determine which RF antenna has the best RF signal quality; selecting the RF antenna having the best RF signal quality for a communication exchange between the external device and the implanted device; and resuming scanning among the plurality of implanted secondary coils to determine whether an other RF antenna exhibits a better RF signal quality. - View Dependent Claims (25)
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Specification