Triple helix driveline cable and methods of assembly and use

摘要

A power cable having improved durability and associated methods of assembly and use are described herein. In one aspect, the power cable is adapted for use in powering an implantable circulatory pump system. The cable includes one or more conductors of uninsulated wire strands that are loosely packed so as to move relative one another during cable flexure. The driveline cable may include a plurality of conductors, each comprised of multiple uninsulated bundles of uninsulated, loosely packed wire strands of a conductive material, that are wrapped about a central core. The cable may include at least six conductors, each conductor having at least 200 wire strands of a 30 gauge or higher. The cable may include the plurality of wire strands wound in a Litz style configuration to provide improved durability over many cycles of use at reduced cost, improved integrity of the electrical connection and reduced diameter.

主权项

1. A driveline cable for an implantable heart pump, the driveline cable comprising:
a plurality of conductors wound along a longitudinal axis of the cable, each conductor comprising a plurality of uninsulated wire strands disposed within an outer insulating layer, wherein the plurality of uninsulated wire strands in each conductor are loosely packed such that a majority of the uninsulated wire strands are movable relative other wire strands when the conductor is flexed, wherein the plurality of wire strands of each conductor are of a 30 gauge or higher and each conductor comprises a plurality of bunches of wire strands, each bunch having at least 32 wire strands of the plurality of wire strands; and an outer jacket disposed about the wound plurality of conductors.