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Reinforced multiple-lumen catheter and apparatus and method for making the same

  • US 5,374,245 A
  • Filed: 04/28/1993
  • Issued: 12/20/1994
  • Est. Priority Date: 01/10/1990
  • Status: Expired due to Term
First Claim
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1. A method of making a multiple-lumen catheter using a co-extrusion die, comprising the steps of:

  • forming an elongated cylindrical tube made of a soft, elastic material which is compatible with the human body, said tube having an internal septum extending along the length thereof to form at least a pair of longitudinal lumens;

    while the elongated cylindrical tube is being formed, arranging a diametral reinforcing member extending along the length of the tube and completely embedded within said soft compatible material of said tube and septum so that said reinforcing material is not exposed to blood passing through said lumens, the reinforcing member being made of a material which is substantially stiffer than the material of the tube; and

    solidifying the tube.

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