Medical electrical lead

A medical electrical lead comprising:

• an elongated lead body provided with an internal longitudinally extending lumen;
• an elongated conductor located in and extending along said lumen of said lead body;
• an electrode coil having a plurality of turns, located on said lead body;
• a conductive sleeve comprising a tubular portion located in said lumen of said lead body and which has an internal lumen through which said conductor passes, said conductor being coupled electrically to said sleeve, said sleeve further having means for engaging only a portion of a said turn of said electrode coil, such that said portion of said turn of said coil passes generally perpendicular to said internal lumen of said sleeve, wherein said engaging means comprises a bore through said sleeve, generally perpendicular to said internal lumen of said sleeve.

A medical electrical lead comprising:

• an elongated lead body provided with an internal longitudinally extending lumen and having a circumference;
• an elongated conductor located in and extending along said lumen of said lead body;
• an electrode coil comprising a plurality of turns extending circumferentially around the lead body;
• a conductive sleeve comprising a tubular portion located in said lumen of said lead body and which has an internal lumen through which said conductor passes, said conductor being coupled electrically to said sleeve, said sleeve further having means for engaging only a portion of a said turn of said electrode coil, such that said portion of said turn of said coil passes generally perpendicular to said internal lumen of said sleeve, wherein said engaging means comprises means for engaging only a portion of each of a plurality of turns of said electrode coil, each of said portions extending circumferentially along a said turn of said coil for less than one full turn.

A medical electrical lead comprising:

• an elongated lead body provided with an internal longitudinally extending lumen;
• an elongated conductor located in and extending along said lumen of said lead body;
• an plurality of electrode coils, each having a having a plurality of turns and located on said lead body;
• a conductive sleeve comprising a tubular portion located in said lumen of said lead body and which has an internal lumen through which said conductor passes, said conductor being coupled electrically to said sleeve, said sleeve further having means for engaging only a portion of a said turn of said electrode coil, such that said portion of said turn of said coil passes generally perpendicular to said internal tureen of said sleeve, wherein said engaging means comprises means for engaging only a portion of a turn of each of said plurality of electrode coils.