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Extension device for coupling between pulse generator and stimulation lead, stimulation system using the same, and method of manufacturing the same

  • US 8,515,555 B1
  • Filed: 10/08/2008
  • Issued: 08/20/2013
  • Est. Priority Date: 10/09/2007
  • Status: Active Grant
First Claim
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1. A lead extension for providing intermediate electrical connection between an implantable pulse generator and one or more stimulation leads, comprising:

  • a lead body;

    a plurality of conductors disposed within the lead body;

    a plurality of terminal contacts on a proximal end of the lead body, wherein the plurality of terminal contacts are electrically coupled to the plurality of conductors; and

    a housing structure disposed at a distal end of the lead body, the housing structure enclosing a plurality of electrical connectors for making electrical contact with terminal contacts of a stimulation lead, wherein the plurality of electrical connectors are electrically coupled to the plurality of conductors;

    the housing structure comprising an outer body of a first material and an inner reinforcing structure of a second material, wherein the first material is a relatively pliable biocompatible polymer material and the second material is a relatively rigid material; and

    the reinforcing structure including a U-shaped elongated body with a plurality of pair of holes along each side of the elongated body, the reinforcing structure for receiving therein a plurality of seals with each of the plurality of seals positioned intermediate one of a corresponding pair of holes of the U-shaped elongated body of the reinforcing structure.

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