Loaded RF antenna for implantable device
First Claim
Patent Images
1. A system comprising:
- an implantable telemetry circuit;
an implantable antenna electrically connected to the implantable telemetry circuit, the implantable antenna comprising;
a first non-coil segment having a proximal end and a distal end, wherein the proximal end is connected to the implantable telemetry circuit; and
a first coil having a proximal end and a distal end, wherein the proximal end is attached to the distal end of the first non-coil segment, and wherein the first coil comprises a continuous series of contiguous turns disposed about a first longitudinal axis; and
a second non-coil segment attached to the distal end of the first coil; and
wherein the implantable antenna is configured to wirelessly transfer information electromagnetically using a first specified operating frequency range and a second specified operating frequency range, wherein the first specified frequency range is established by a first resonant frequency and the different second specified operating frequency is established by a different second resonant frequency, and wherein the first specified operating frequency range and the second specified operating frequency range are provided at least in part by a physical arrangement of the first coil with respect to the first non-coil segment and the second non-coil segment;
an implantable housing sized and shaped for implant within a human or animal body, the implantable housing comprising a conductive material and containing at least a portion of the implantable telemetry circuit, wherein the conductive material is electrically connected to the implantable telemetry circuit;
a first implantable dielectric compartment sized and shaped for implant within a human or animal body, the first implantable dielectric compartment containing at least a portion of the first non-coil segment of the implantable antenna, and wherein the first implantable dielectric compartment is coupled to the housing; and
a second implantable dielectric compartment sized and shaped for implant within a human or animal body, the second implantable dielectric compartment containing the first coil of the implantable antenna, wherein the second implantable dielectric compartment is coupled to the housing, and wherein the first coil is configured to follow an exterior contour of the implantable housing.
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Abstract
This document discusses, among other things, a system and method for wirelessly transferring information electromagnetically at a first specified operating frequency range and at a second specified operating frequency range using an implantable antenna. In certain examples, the implantable antenna can include a first non-coiled segment and a first coiled segment, and the first specified operating frequency range and the second specified operating frequency range can be provided at least in part by a physical arrangement of the first coiled segment with respect to the first non-coiled segment.
148 Citations
16 Claims
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1. A system comprising:
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an implantable telemetry circuit; an implantable antenna electrically connected to the implantable telemetry circuit, the implantable antenna comprising; a first non-coil segment having a proximal end and a distal end, wherein the proximal end is connected to the implantable telemetry circuit; and a first coil having a proximal end and a distal end, wherein the proximal end is attached to the distal end of the first non-coil segment, and wherein the first coil comprises a continuous series of contiguous turns disposed about a first longitudinal axis; and a second non-coil segment attached to the distal end of the first coil; and wherein the implantable antenna is configured to wirelessly transfer information electromagnetically using a first specified operating frequency range and a second specified operating frequency range, wherein the first specified frequency range is established by a first resonant frequency and the different second specified operating frequency is established by a different second resonant frequency, and wherein the first specified operating frequency range and the second specified operating frequency range are provided at least in part by a physical arrangement of the first coil with respect to the first non-coil segment and the second non-coil segment; an implantable housing sized and shaped for implant within a human or animal body, the implantable housing comprising a conductive material and containing at least a portion of the implantable telemetry circuit, wherein the conductive material is electrically connected to the implantable telemetry circuit; a first implantable dielectric compartment sized and shaped for implant within a human or animal body, the first implantable dielectric compartment containing at least a portion of the first non-coil segment of the implantable antenna, and wherein the first implantable dielectric compartment is coupled to the housing; and a second implantable dielectric compartment sized and shaped for implant within a human or animal body, the second implantable dielectric compartment containing the first coil of the implantable antenna, wherein the second implantable dielectric compartment is coupled to the housing, and wherein the first coil is configured to follow an exterior contour of the implantable housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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providing an implantable housing sized and shaped for implant within a human or animal body, the implantable housing comprising a conductive material and containing at least a portion of an implantable telemetry circuit, wherein the conductive material is electrically connected to the implantable telemetry circuit; providing a first implantable dielectric compartment sized and shaped for implant within a human or animal body, wherein the first implantable dielectric compartment is coupled to the housing; providing a second implantable dielectric compartment sized and shaped for implant within a human or animal body, wherein the second implantable dielectric compartment is coupled to the housing; wirelessly transferring information electromagnetically at a first specified operating frequency range and at a second specified operating frequency range using an implantable antenna, the implantable antenna comprising; a first non-coil segment having a proximal end and a distal end, wherein the proximal end is connected to the implantable telemetry circuit; and a first coil having a proximal end and a distal end, wherein the proximal end is attached to the distal end of the first non-coil segment, wherein the first coil comprises a continuous series of contiguous turns disposed about a first longitudinal axis; and a second non-coil segment attached to the distal end of the first coil; and wherein the first specified operating frequency range and the second specified operating frequency range are provided at least in part by a physical arrangement of the first coil with respect to the first non-coil segment and the second non-coil segment; wherein the first specified operating frequency range is established by a first resonant frequency and the second specified operating frequency is established by a different second resonant frequency, wherein the first implantable dielectric compartment contains at least a portion of the first non-coil segment of the implantable antenna, and wherein the second implantable dielectric compartment contains the first coil of the implantable antenna, and wherein the first coil is configured to follow an exterior contour of the implantable housing. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification