RADIO FREQUENCY ANTENNA IN A HEADER OF AN IMPLANTABLE MEDICAL DEVICE
First Claim
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1. An apparatus comprising:
- a header assembly for an implantable medical device, the header assembly comprising;
an antenna configured to be coupled to an electronic circuit within a housing of the implantable medical device, the electronic circuit configured for radio frequency communication using the antenna; and
a dielectric material configured to isolate the antenna from tissue of a patient when the header assembly is implanted in the patient, and to dispose at least a portion of the antenna within the dielectric material at a specified distance from a surface of the header assembly to load the antenna with a specified dielectric constant.
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Abstract
An apparatus and method for enabling far-field radio frequency communications with an implantable medical device in which an antenna structure is disposed within a header assembly of the device. The antenna structure, in various embodiments, includes a monopole antenna, a dipole antenna, an inverted F antenna, a patch antenna and a slot antenna.
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Citations
20 Claims
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1. An apparatus comprising:
a header assembly for an implantable medical device, the header assembly comprising; an antenna configured to be coupled to an electronic circuit within a housing of the implantable medical device, the electronic circuit configured for radio frequency communication using the antenna; and a dielectric material configured to isolate the antenna from tissue of a patient when the header assembly is implanted in the patient, and to dispose at least a portion of the antenna within the dielectric material at a specified distance from a surface of the header assembly to load the antenna with a specified dielectric constant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus comprising:
a header assembly for an implantable medical device, the header assembly comprising; an antenna configured to be coupled to an electronic circuit within a housing of the implantable medical device, the electronic circuit configured for radio frequency communication using the antenna; and a dielectric material configured to isolate the antenna from tissue of a patient when the header assembly is implanted in the patient, and configured to dispose at least a portion of the antenna within the dielectric material at a specified distance from a surface of the header assembly to load the antenna with a specified dielectric constant, the dielectric material comprising a trench configured to locate at least a portion of the antenna at a specified depth from the surface of the header assembly when the antenna is positioned within the trench; and a silicone fill material configured to fill the trench when the antenna is positioned within the trench, the fill material configured to retain the antenna and isolate the antenna from tissue of the patient. - View Dependent Claims (16, 17)
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18. A method, comprising:
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forming an antenna configured to be coupled to an electronic circuit within a housing of the implantable medical device, the electronic circuit configured for radio frequency communication using the antenna; and locating the antenna within a dielectric material to provide a header assembly configured to isolate the antenna from tissue of a patient when the header assembly is implanted in the patient, and configured to dispose at least a portion of the antenna within the dielectric material at a specified distance from a surface of the header assembly to load the antenna with a specified dielectric constant. - View Dependent Claims (19, 20)
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Specification