Patent ID: 7467014
Filing Date: 2008-12-16
Classification: A61N

Abstract:
1. An implantable medical device (“IMD”) comprising: a housing having a housing perimeter; a header block coupled to said housing, said header block having a header block perimeter; a dielectric sheath having a first section located around at least a portion of said housing perimeter, and a second section located around at least a portion of said header block perimeter, said dielectric sheath being a distinct component from said header block; and an antenna arrangement comprising a first antenna element completely contained within said dielectric sheath and having no portion located within said header block, and a second antenna element completely contained within said dielectric sheath and having no portion located within said header block, said second antenna element being physically distinct from said first antenna element; said first antenna element having a first feed point from said housing and a first endpoint in said first section of said dielectric sheath; said second antenna element having a second feed point from said housing and a second endpoint in said second section of said dielectric sheath, said second feed point being physically distinct from said first feed point; and said first feed point being adjacent to said second feed point.