Patent ID: 7903043
Filing Date: 2011-03-08
Classification: A61N,H01Q,Y10T

Abstract:
1. An implantable cardiac rhythm management device, comprising: an implantable housing, the housing including a conductive surface; an electronic circuit within said implantable housing, said electronic circuit configured to provide cardiac rhythm management for a patient in whom the device is implanted, said electronic circuit configured to communicate through radio frequency communications; and an inverted F antenna coupled to the electronic circuit, said antenna configured for facilitating said radio frequency communications with said electronic circuit, wherein said antenna includes a planar conductor, and wherein the conductive surface of the implantable housing functions as a ground plane for said antenna; a header housing said inverted F antenna, said header proximate said housing and configured to provide an electrical connection for a lead extending away from the header; and wherein said header is configured to isolate said inverted F antenna from tissue of said patient when said implantable cardiac rhythm management device is implanted, and to dispose said planar conductor a specified distance from a surface of said header, said specified distance configured to load said antenna with a predictable dielectric constant.