US Patent 7856272 Implantable interface for a medical device system

An implantable interface system for a medical device system providing selective interconnectivity between conduits and therapy elements. The interface system contains connecting elements that each provide a robust connection between a selected conduit and a selected therapy element. The interface system enables the use of a surplus of therapy elements so that treatment to the same site (in the case of electrode migration or failure), or to different sites but within the spatial domain of the interface's elements may be delivered through the spare/excess therapy elements without the need for additional major surgical procedures.