Multipolar cardiac pacemaker lead

A cardiac pacemaker lead having a proximal end and a distal end and comprising a first pacing electrode at said distal end;

• a second pacing electrode between said fist electrode and said proximal end;
• a first elongated conductor connected to said first electrode and extending toward said proximal end;
• a second elongated conductor insulated from said first conductor and extending from said second electrode toward said proximal end, each of said first and second conductors constituting a helically wound wire with convolutions having common axes and at least substantially identical outer diameters;
• at least one substantially band-shaped third conductor;
• means for positively connecting said at least one third conductor to said second electrode nd to said second conductor, including a tubular fourth conductor surrounding said wires and being surrounded by said second electrode;
• a first tubular insulator surrounding said wires and surrounded by said fourth conductor;
• and a second tubular insulator disposed between said second conductor having an end portion extending through said first insulator and connected to an external surface of said fourth conductor, said at least one third conductor being connected to said external surface and extending through said second insulator.

A cardiac pacemaker lead having a proximal end and a distal end and comprising a first pacing electrode at said distal end;

• a second pacing electrode between said first electrode and said proximal end;
• a first elongated conductor connected to said first electrode and extending toward said proximal end;
• a second elongated conductor insulated from said first conductor and extending from said second electrode toward said proximal end;
• at least one substantially band-shaped third conductor;
• and means for positively connecting said at least one third conductor to said second electrode and to said second conductor, including a tubular fourth conductor surrounded by said second electrode and electrically connected with said second conductor and at lest one welded or soldered joint connecting said at least one third conductor with said fourth conductor.

A cardiac pacemaker lead having a proximal end and a distal end and comprising a first pacing electrode at said distal end;

• a second pacing electrode between said first electrode and said proximal end;
• a first elongated conductor connected to said first electrode and extending toward said proximal end;
• a second elongated conductor insulted from said first conductor and extending from said second electrode toward said proximal end;
• at least one substantially band-shaped third conductor;
• and means for positively connecting said at least one third conductor to said second electrode and to said second conductor, including a tubular fourth conductor surrounded by said second electrode and connected with said at least one third conductor, said second conductor having an end portion which is welded or soldered to said fourth conductor.