Helical antenna for an implantable medical device

摘要

An apparatus and method for enabling far-field radio-frequency communications with an implantable medical device in which an antenna is embedded within a dielectric compartment of the device. A helical antenna may be employed to save space while still permitting far-field telemetry over a desired range of frequencies.

主权项

1. An implantable medical device, comprising:
an implantable medical device housing including an implantable telemetry circuit; an implantable helical antenna configured to wirelessly transfer information electromagnetically within a specified operating frequency range, the implantable helical antenna having an axis substantially perpendicular to a ground plane of the implantable helical antenna, the implantable helical antenna having a first end and a second end, wherein the first end is connected to the ground plane and the second end is free-floating; and a dielectric member housing the implantable helical antenna, the dielectric member proximate the implantable medical device housing.