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Catheter with novel lumens shapes

  • US 5,160,325 A
  • Filed: 01/22/1991
  • Issued: 11/03/1992
  • Est. Priority Date: 10/06/1986
  • Status: Expired due to Term
First Claim
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1. An indwelling catheter tube comprising:

  • (a) an elongated body of elastomeric material having an outside surface;

    (b) a lumen longitudinally formed through said body of elastomeric material and comprising a plurality of longitudinally extending inner wall surfaces, one of said inner wall surfaces in a cross section of said body of elastomeric material taken normal to the longitudinal axis thereof comprising a straight segment, the end points of said straight segment being disposed closer to said outside surface of said body of elastomeric material than the portions of said straight segment therebetween, thereby to define, between said straight segment and said outside surface of said body of elastomeric material radially outwardly from said straight segment, a solid outer wall portion of said catheter tube integrally formed of said elastomeric material.

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