Folded antennas for implantable medical devices
First Claim
1. An apparatus, comprising:
- an implantable medical device comprising;
a housing;
an implantable telemetry circuit carried within the housing;
a dielectric compartment, mechanically coupled to the housing, the dielectric compartment including first and second substantially parallel face portions, and a third face portion extending between the first and second face portions;
an implantable telemetry antenna, located at least partially within dielectric compartment;
wherein the implantable telemetry circuit is electrically coupled to the implantable telemetry antenna and configured to wirelessly transfer information electromagnetically using the implantable telemetry antenna; and
wherein the implantable telemetry antenna comprises;
a spiral conductor extending along and substantially conforming to the contours of the first, second, and third face portions of the dielectric compartment,wherein the spiral conductor comprises a planar spiral pattern including concentric turns.
1 Assignment
0 Petitions
Accused Products
Abstract
In an example, an apparatus can include an implantable medical device comprising a housing, an implantable telemetry circuit carried within the housing, a dielectric compartment mechanically coupled to the housing, the dielectric compartment including first and second substantially parallel face portions and a third face portion extending between the first and second face portions, and an implantable telemetry antenna, located at least partially within the dielectric compartment. The implantable telemetry circuit can be electrically coupled to the implantable telemetry antenna and configured to wirelessly transfer information electromagnetically using the implantable telemetry antenna. In an example the implantable telemetry antenna comprises a spiral conductor portion extending along the first, second, and third face portions. In an example the spiral conductor includes a cross section having a lateral width that can be greater than a sidewall height of the cross section.
28 Citations
19 Claims
-
1. An apparatus, comprising:
an implantable medical device comprising; a housing; an implantable telemetry circuit carried within the housing; a dielectric compartment, mechanically coupled to the housing, the dielectric compartment including first and second substantially parallel face portions, and a third face portion extending between the first and second face portions; an implantable telemetry antenna, located at least partially within dielectric compartment; wherein the implantable telemetry circuit is electrically coupled to the implantable telemetry antenna and configured to wirelessly transfer information electromagnetically using the implantable telemetry antenna; and wherein the implantable telemetry antenna comprises; a spiral conductor extending along and substantially conforming to the contours of the first, second, and third face portions of the dielectric compartment, wherein the spiral conductor comprises a planar spiral pattern including concentric turns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
10. An apparatus, comprising:
an implantable medical device comprising; a housing; an implantable telemetry circuit carried within the housing, the dielectric compartment including first and second substantially parallel face portions, and a third face portion extending between the first and second face portions; a dielectric compartment, mechanically coupled to the housing; an implantable telemetry antenna located at least partially within the dielectric compartment; wherein the implantable telemetry circuit is electrically coupled to the implantable telemetry antenna and configured to wirelessly transfer information electromagnetically using the implantable telemetry antenna; wherein the implantable telemetry antenna comprises; a spiral conductor extending along and substantially conforming to the contours of the first, second, and third face portions of the dielectric compartment, the conductor including a cross section having a lateral width that is greater than a sidewall height of the cross section; and wherein one or more of a number of turns of the spiral conductor, the lateral width of the spiral conductor, the sidewall height of the spiral conductor, a separation between adjacent turns of the spiral conductor, a path length along the spiral conductor, a total surface area of the antenna, a diameter of a hypothetical sphere sized to enclose the antenna, or a separation between an end and an initial location along the antenna, is used to provide a specified input impedance range, within a specified range of operating frequencies to be used for wireless information transfer. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
19. A method, comprising:
-
providing an implantable medical device comprising; a dielectric compartment including first and second substantially parallel face portions, and a. third face portion extending between the first and second face portions; and an implantable telemetry antenna, located at least partially within the dielectric compartment, the implantable telemetry antenna comprising; a spiral conductor extending along and substantially conforming to the contours of the first, second, and third face portions of the dielectric compartment, wherein the spiral conductor comprises a planar spiral pattern including concentric turns; and wirelessly transferring information electromagnetically using the implantable telemetry antenna.
-
Specification