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Composite vascular catheter

  • US 4,981,478 A
  • Filed: 09/06/1988
  • Issued: 01/01/1991
  • Est. Priority Date: 09/06/1988
  • Status: Expired due to Term
First Claim
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1. In a vascular dilation catheter for angioplasty procedures having an elongated outer tubular member which has a distal end, an inflatable balloon which has a distal end and which is on the distal end of the outer tubular member and an inner tubular member which has a distal end and an inner lumen adapted to receive a guidewire therein disposed within the outer tubular member forming therebetween an annular inflation lumen, the distal end of the inner tubular member being secured to the distal end of the balloon, the improvement in the catheter body comprising the inner tubular member having a tubular substructure and at least one fibrous, resin impregnated layer formed on the exterior thereof which provides longitudinal flexibility and diametric rigidity.

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