Patent ID: 7769443

Claim:
An implantable system for implanting into a patient, the implantable system comprising: an implantable source unit; an implantable elongated member operatively associated with said implantable source unit; an implantable spool adapted for receiving multiple windings of said implantable elongated member; and a first cap portion covering a first circumferential edge portion of the implantable spool, a second cap portion covering a second circumferential edge portion of the implantable spool, the first cap portion being circumferentially separated from the second cap portion by a pair of gaps, wherein the implantable elongated member enters the implantable spool at a first gap of the pair gaps and exits the implantable spool at a second gap of the pair of gaps, and wherein the first cap portion and the second cap portion radially enclose portions of a winding channel of the implantable spool.