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Intraluminal catheter with a composite shaft

  • US 5,290,230 A
  • Filed: 05/11/1992
  • Issued: 03/01/1994
  • Est. Priority Date: 05/11/1992
  • Status: Expired due to Term
First Claim
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1. A fixed-wire dilatation catheter for performing angioplasty procedures within a patient'"'"'s arterial system comprising:

  • a) a catheter shaft of braided composite construction having an inflation port in a distal portion thereof which has be formed by;

    braiding into a tubular structure a plurality of the compressible, multifilament strands which have dispersed therein a relatively low melting point polymeric matrix material,subjecting the braided tubular structure to sufficient heat to form a molten polymer matrix from the low melting point polymeric matrix material dispersed within the multifilament strands, andcooling the molten polymer matrix to a temperature below the melting point thereof;

    b) a shapeable guide member which is secured to the distal end of the catheter shaft; and

    c) an inflatable member having proximal and distal ends with the proximal end being bonded to the catheter shaft at a location proximal to the inflation port and the distal end sealed about the shapeable guide member which extends therethrough.

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