Implantable medical device without antenna feedthrough

摘要

An implantable medical device includes a case having a conductive housing defining an opening. A dielectric material is coupled to the conductive housing to hermetically seal the opening. A header block is coupled to the case over the dielectric material. An antenna is within the case under the dielectric material and there is no antenna feedthrough extending through the case into the header block.

主权项

1. An implantable medical device comprising:
a case including a conductive housing and a header block, the conductive housing including an opening adjacent to the header block; a dielectric material coupled to the conductive housing to hermetically seal the opening; the header block coupled to the conductive housing over the dielectric material; an antenna system comprising one or more antennas, wherein the antenna system is located within the conductive housing and under the dielectric material, wherein there is no antenna feed through extending through the conductive housing into the header block; a communication circuitry coupled to the antenna system; and a wake-up circuitry coupled to the antenna system, wherein the wake-up circuitry is configured to cause the communication circuitry to transition from an inactive sleep state to an awaken state upon receipt of a wake-up signal from an external device; wherein the conductive housing substantially blocks external radio frequency signals from being received by the antenna system unless the external radio frequency signals are in line of site of the antenna system through the opening in the conductive housing.