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Catheter with knit section

  • US 7,815,626 B1
  • Filed: 06/12/1998
  • Issued: 10/19/2010
  • Est. Priority Date: 06/12/1998
  • Status: Expired due to Term
First Claim
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1. A catheter comprising an elongate tubular member having a proximal end, a distal end, and a passageway defining a lumen extending between those ends, said elongate tubular member comprising:

  • a relatively stiff proximal segment including an inner proximal liner, an outer proximal cover, and a braid interposed between the inner proximal liner and the outer proximal cover; and

    a relatively flexible distal segment comprising a knit tubular member and an inner tubular liner in coaxial relationship with the knit tubular member, wherein the knit tubular member is formed from a single strand, wherein the single strand forms a plurality of up loops and a plurality of down loops, wherein the plurality of up loops of the single strand interlock with the plurality of down loops of the single strand;

    wherein the knit tubular member is generally not radially expandable.

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