Abstract: A lead having a distal end electrode assembly adapted for implantation on or about the heart or within a vein and for connection to a system for monitoring or stimulating cardiac activity. The electrode assembly includes conductive fixation features, such as conductive tines or flexible members, in combination with non-conductive fixation features. The conductive fixation features also include tines coated with a conductive material. The fixation features further include conductive tines which are retractable. A defibrillation coil is optionally disposed at the distal end of the lead in combination with the conductive tines.

Abstract: A medical device includes one or more tines having a first position and a second position. The tines are coupled with a body including one or more recessed portions thereon. In one of the first or second positions, the one or more tines are disposed adjacent one of the recessed portions of the body.