Folded antennas for implantable medical devices

摘要

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.

主权项

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; andwherein 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.