Abstract: One aspect is a bi- or multipolar lead for a medical device including: a) a cable comprising an outer insulation having at least two first openings near a distal end of the cable; an inner lumen, wherein the inner lumen is arranged coaxially to the outer insulation and extends in a longitudinal direction from a proximal end to the distal end of the cable; at least two conducting channels, wherein the at least two conducting channels are arranged between the outer insulation and the inner lumen of the cable, wherein each one of the at least two conducting channels is formed by at least one insulated conductor comprising a conductor and an insulation layer, and wherein the insulation layer of the at least one insulated conductor of each one of the at least two conducting channels comprises a second opening, which is aligned with one of the at least two first openings; b) at least two ring electrodes, wherein each one of the at least two ring electrodes surrounds the cable at a position of one of the at least tw

Abstract: In some embodiments, a method for optimizing cardiac resynchronization therapy (CRT) may include one or more of the following steps: (a) conducting a baseline measurement of a physical parameter of a patient before initiating CRT, (b) performing an implantation process including implanting a pacing device and pacing leads in the patient, the pacing device and pacing leads for providing the CRT, (c) initiating CRT on the patient, (d) measuring the physical parameter of the patient after initiation of the CRT, (e) comparing the measured physical parameter after initiation of the CRT to the baseline measure of the physical parameter to analyze the patient's response to the CRT, (f) adjusting the CRT during the implantation process to try and improve the patient's response to the CRT, and (g) repositioning at least one of the patient leads during the implantation process to try and improve the patient's response to the CRT.

Abstract: A medical electrical lead includes a conductive component coupling a coil to a wire or cable; the conductive component includes a first side, a second side, a first groove formed in the first side and a second groove formed in the second side. The first groove holds a portion of the cable and the second groove holds a portion of the coil.