Antennas for implantable medical devices
First Claim
1. An apparatus, comprising:
- an implantable medical device comprising;
a housing including an implantable telemetry circuit configured to wirelessly transfer information electromagnetically;
a dielectric compartment mechanically coupled to the housing, wherein the dielectric compartment includes first and second substantially parallel face portions, and a third face portion extending between the first and second face portions;
an antenna assembly configured to be mechanically attached to the dielectric compartment and electrically coupled to the implantable telemetry circuit, the antenna assembly including a spiral conductor comprising a planar spiral pattern folded into first, second, and third spiral conductor portions that extend adjacent the first, second, and third face portions, respectively, of the dielectric compartment,wherein the first, second, and third spiral conductor portions define an interior region, wherein at least a portion of the third spiral conductor portion extends inwardly into the interior region, and wherein the at least a portion of the third spiral conductor portion that extends inwardly into the interior region includes a surface defining a curvature that has a bend radius.
1 Assignment
0 Petitions
Accused Products
Abstract
In general, techniques are described for wirelessly transferring information using an implantable antenna. In one example, an apparatus includes an implantable medical device that includes a housing including an implantable telemetry circuit. The apparatus includes a dielectric compartment, mechanically coupled to the housing and including first and second substantially parallel face portions, and a third face portion extending between the first and second face portions, and an antenna assembly configured to be mechanically attached to the dielectric compartment and configured to be electrically coupled to the implantable telemetry circuit, the antenna assembly includes a spiral conductor comprising first, second, and third spiral conductor portions that extend adjacent the first, second, and third face portions, respectively, of the dielectric compartment, where the first, second, and third spiral conductor portions define an interior region, and where at least a portion of the third spiral conductor portion extends inwardly into the interior region.
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Citations
17 Claims
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1. An apparatus, comprising:
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an implantable medical device comprising; a housing including an implantable telemetry circuit configured to wirelessly transfer information electromagnetically; a dielectric compartment mechanically coupled to the housing, wherein the dielectric compartment includes first and second substantially parallel face portions, and a third face portion extending between the first and second face portions; an antenna assembly configured to be mechanically attached to the dielectric compartment and electrically coupled to the implantable telemetry circuit, the antenna assembly including a spiral conductor comprising a planar spiral pattern folded into first, second, and third spiral conductor portions that extend adjacent the first, second, and third face portions, respectively, of the dielectric compartment, wherein the first, second, and third spiral conductor portions define an interior region, wherein at least a portion of the third spiral conductor portion extends inwardly into the interior region, and wherein the at least a portion of the third spiral conductor portion that extends inwardly into the interior region includes a surface defining a curvature that has a bend radius. - 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 medical device comprising; a housing including an implantable telemetry circuit configured to wirelessly transfer information electromagnetically; a dielectric compartment mechanically coupled to the housing, where the dielectric compartment includes first and second substantially parallel face portions, and a third face portion extending between the first and second face portions; an antenna assembly configured to be mechanically attached to the dielectric compartment and electrically coupled to the implantable telemetry circuit, the antenna assembly including a spiral conductor comprising a planar spiral pattern folded into first, second, and third spiral conductor portions that extend adjacent the first, second, and third face portions, respectively, of the dielectric compartment, wherein the first, second, and third spiral conductor portions define an interior region, wherein at least a portion of the third spiral conductor portion extends inwardly into the interior region, and wherein the at least a portion of the third spiral conductor portion that extends inwardly into the interior region includes a surface defining a curvature that has a bend radius; and wirelessly transferring information electromagnetically using the implantable antenna assembly. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification