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Method of making electrode-carrying catheter

  • US 5,555,618 A
  • Filed: 12/14/1994
  • Issued: 09/17/1996
  • Est. Priority Date: 10/12/1993
  • Status: Expired due to Term
First Claim
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1. A process for manufacturing an electrode-carrying catheter, comprising the steps of:

  • (A) over-extruding a core-covering layer of plastic over a flexible, elongate core;

    (B) helically winding a spaced apart plurality of flexible, electrically conductive wires about and at least partially into the core-covering layer;

    (C) over-extruding a flexible, non-conducting outer layer of plastic over the wound wires and the core-covering layer;

    (D) removing portions of the outer layer, the core-covering layer and any insulation about the wound wires at a plurality of spaced locations so as to expose a portion of each of the wound wires;

    (E) replacing the removed portions at each location with an electrically conductive flexible ribbon electrode electrically and physically joined at one end to a respective one of the wound wires, wound under tension completely about the outer layer and then joined at the other end to itself; and

    (F) crimping each of the ribbon electrodes onto the outer layer thereabout at each spaced location.

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