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Helix rotation by traction

  • US 20020177888A1
  • Filed: 04/30/2002
  • Published: 11/28/2002
  • Est. Priority Date: 04/26/2000
  • Status: Active Grant
First Claim
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1. A medical electrical lead, comprising:

  • an elongated insulative sheath having proximal and distal ends;

    first and second electrical components, located such that a length of said insulative sheath extends therebetween; and

    a coil/core structure mechanically and electrically coupling said first and second electrical components disposed within said insulative sheath, said coil/core structure comprising a fiber core wrapped in a Z-shape braid and having an elongated electrical conductor wound around the fiber core, wherein the elongated electrical conductor is coupled electrically to the first and second electrical components, and the fiber core is mechanically coupled to the first and second electrical components so that when a tensile force is applied between the first and second electrical components the Z-shape braid of the fiber core unwinds thus imparting counter-rotational motion to the first electrical component.

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