Compact conformal antenna for a medical telemetry system
First Claim
Patent Images
1. An implanted medical device (“
- IMD”
) telemetry device comprising;
an electrically conducting structure;
a folded monopole antenna structure located proximate to said electrically conducting structure, said folded monopole antenna structure having an input section, a first radiating section coupled to said input section, a second radiating section parallel to said first radiating section, and a bend section coupling said first radiating section to said second radiating section, said electrically conducting structure being located closer to said second radiating section than to said first radiating section; and
a receiver coupled to said folded monopole antenna structure, said receiver being configured to receive IMD signals via said folded monopole antenna structure, said folded monopole antenna structure being configured to account for surface current cancellation caused by induced surface current on said electrically conducting structure.
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Abstract
A telemetry component according to an embodiment of the invention, such as a programmer or a monitor for an implantable medical device (“IMD”), includes at least one radio frequency (“RF”) antenna that is configured to accommodate far-field telemetry between the telemetry component and the IMD. The RF antenna is shaped, sized, positioned, and otherwise configured to account for surface current cancellation caused by induced surface current on an electrically conductive surface of the telemetry component.
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Citations
20 Claims
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1. An implanted medical device (“
- IMD”
) telemetry device comprising;an electrically conducting structure; a folded monopole antenna structure located proximate to said electrically conducting structure, said folded monopole antenna structure having an input section, a first radiating section coupled to said input section, a second radiating section parallel to said first radiating section, and a bend section coupling said first radiating section to said second radiating section, said electrically conducting structure being located closer to said second radiating section than to said first radiating section; and a receiver coupled to said folded monopole antenna structure, said receiver being configured to receive IMD signals via said folded monopole antenna structure, said folded monopole antenna structure being configured to account for surface current cancellation caused by induced surface current on said electrically conducting structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- IMD”
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11. A radio frequency (“
- RF”
) antenna for an implanted medical device (“
IMD”
) telemetry device having electrically conducting structures, said antenna comprising a conformal radiating element shaped to account for surface current cancellation caused by induced surface current on the electrically conducting structures, wherein said conformal radiating element comprises a planar inverted F-shaped structure having an input section, a first radiating section coupled to said input section, a second radiating section parallel to said first radiating section, and a bend section coupling said first radiating section to said second radiating section, said electrically conducting structure being located closer to said first radiating section than to said second radiating section. - View Dependent Claims (12, 13, 14)
- RF”
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15. An implanted medical device (“
- IMD”
) telemetry device comprising;an electrically conducting structure; an antenna located proximate to said electrically conducting structure, and shaped to be anti-parallel with features of said electrically conducting structure; and a receiver coupled to said antenna, said receiver being configured to receive IMD signals via said antenna, said antenna being configured to account for surface current cancellation caused by induced surface current on said electrically conducting structure.
- IMD”
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16. An implanted medical device (“
- IMD”
) telemetry device comprising;an electrically conducting structure; an antenna located proximate to said electrically conducting structure; an RF protection diode coupled to said antenna; and a receiver coupled to said antenna, said receiver being configured to receive IMD signals via said antenna, said antenna being configured to account for surface current cancellation caused by induced surface current on said electrically conducting structure.
- IMD”
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17. An implanted medical device (“
- IMD”
) telemetry device comprising;a housing; an electrically conducting structure contained in said housing; a first antenna contained in said housing; a second antenna contained in said housing; and a transceiver coupled to said first antenna and coupled to said second antenna, said transceiver being configured to convey IMD signals via at least one of said first antenna and said second antenna, said first antenna and said second antenna each being configured to account for surface current cancellation caused by induced surface current on said electrically conducting structure; wherein at least one of said first antenna and said second antenna is shaped to be anti-parallel with features of said electrically conductive structure.
- IMD”
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18. A radio frequency (“
- RF”
) antenna for an implanted medical device (“
IMD”
) telemetry device having electrically conducting structures, said antenna comprising a conformal radiating element shaped to account for surface current cancellation caused by induced surface current on the electrically conducting structures, wherein said conformal radiating element is shaped to be anti-parallel with features of the electrically conductive structure.
- RF”
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19. A radio frequency (“
- RF”
) antenna for an implanted medical device (“
IMD”
) telemetry device having electrically conducting structures, said antenna comprising;a conformal radiating element shaped to account for surface current cancellation caused by induced surface current on the electrically conducting structures; and an RF protection diode coupled to said conformal radiating element, said RF protection diode being configured to limit RF energy received by said RF antenna. - View Dependent Claims (20)
- RF”
Specification