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US 6,675,045 B2Granted
Split-can dipole antenna for an implantable medical device
AssigneeCardiac Pacemakers, Inc.
InventorsWilliam R. Mass, Jeffrey A. Von Arx
Life of this patent
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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.
Claims16
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.
4 more elements
Dependencies are inferred from the claim text.