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Composite super-elastic alloy braid reinforced catheter

  • US 5,702,373 A
  • Filed: 08/31/1995
  • Issued: 12/30/1997
  • Est. Priority Date: 08/31/1995
  • Status: Expired due to Term
First Claim
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1. A catheter assembly comprising:

  • an elongate tubular member having a proximal end and a distal end and a passageway defining an inner lumen extending between those ends, comprisinga.) a relatively more flexible and more distal segment, comprisingi.) a braid member woven of a plurality of ribbons, at least a majority of which ribbons comprise a superelastic alloy, and having inner and outer surfaces,ii.) at least one inner lining member interior to said braid member, andiii.) at least one outer covering member exterior to said braid member wherein the relatively more distal segment has a critical bend diameter of no more than 3.0 mm, andb.) a relatively more rigid and more proximal tubular segment comprising a comparatively high flexural modulus material.

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