Implantable defibrillator patch lead

An implantable patch lead for use with an implantable defibrillation device, comprising:

• a coaxial conductor having an inner and an outer conductor and having a proximal end and body end;
• a proximal connector, coupled to the proximal end of the coaxial conductor, for electrically connecting the coaxial conductor to the implantable defibrillation device;
• a wire mesh patch electrode;
• an electrically conductive connector element having a body portion and a connector portion, the body portion having means for mechanically and electrically connecting the wire mesh patch electrode thereto, the connector portion having a cavity therein;
• a core sleeve having a main body, a narrow protruding portion, and a channel therethrough, the channel being for slidably inserting and electrically connecting the inner conductor of the coaxial conductor therein, the narrow protruding portion being for sliding the outer conductor of the coaxial conductor thereover and electrically connecting thereto, the core sleeve being slidably inserted within the cavity of the connector portion and electrically connected thereto;
• and
• means for electrically insulating the inner and outer conductors of the coaxial conductor, the electrically conductive connector element and a peripheral portion of the wire mesh patch electrode in a biocompatible insulation material.

An implantable defibrillator patch lead for use with an implantable defibrillation device comprising:

• a coaxial conductor having a proximal end and a distal end;
• a proximal connector, coupled to the proximal end of the coaxial conductor, for electrically connecting the coaxial conductor to the implantable defibrillation device;
• a wire mesh patch electrode;
• and
• a connector element having a body portion forming an electrical interconnection between the patch electrode and the coaxial conductor, the body portion defining a slot into which a portion of the wire mesh patch electrode is inserted and bonded by laser welding, and a hollow cylindrical projection extending from the body portion of the connector element to receive and securely retain one end of the coaxial conductor at a location spaced from the slot into which said wire mesh patch electrode is bonded.