Split-can dipole antenna for an implantable medical device
First Claim
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1. An implantable medical device, comprising:
- therapy circuitry for providing a functionality to the medical device;
RF circuitry for providing RF communications;
a battery for supplying power to the therapy and RF circuitry;
a first housing portion made of conductive material and containing at least part of either the therapy circuitry, the RF circuitry, or the battery;
a second housing portion made of conductive material and containing at least one of the remaining part of either the therapy circuitry, the RF circuitry, or the battery;
an insulator electrically separating the first and second housing portions;
wherein the RF circuitry is connected to the first and second housing portions in a manner such that the first and second housing portions form a dipole antenna for transmitting or receiving a modulated radio-frequency carrier at a specified carrier frequency.
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Abstract
An apparatus and method for enabling far-field radio-frequency communications with an implantable medical device utilizing the device housing as an antenna. Such radio-frequency communications can take place over much greater distances than with inductively coupled antennas.
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Citations
16 Claims
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1. An implantable medical device, comprising:
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therapy circuitry for providing a functionality to the medical device;
RF circuitry for providing RF communications;
a battery for supplying power to the therapy and RF circuitry;
a first housing portion made of conductive material and containing at least part of either the therapy circuitry, the RF circuitry, or the battery;
a second housing portion made of conductive material and containing at least one of the remaining part of either the therapy circuitry, the RF circuitry, or the battery;
an insulator electrically separating the first and second housing portions;
wherein the RF circuitry is connected to the first and second housing portions in a manner such that the first and second housing portions form a dipole antenna for transmitting or receiving a modulated radio-frequency carrier at a specified carrier frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification