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ENHANCED FLEXIBILITY NEUROVASCULAR CATHETER

  • US 20170252536A1
  • Filed: 02/24/2017
  • Published: 09/07/2017
  • Est. Priority Date: 02/24/2016
  • Status: Active Grant
First Claim
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1. An enhanced flexibility neurovascular catheter, comprising:

  • an elongate flexible body, having a proximal end, a distal end and a side wall defining a central lumen, a distal zone of the side wall comprising;

    a tubular inner liner;

    a tie layer separated from the lumen by the inner liner;

    a helical coil surrounding the tie layer, adjacent windings of the coil spaced progressively further apart in the distal direction; and

    an outer jacket surrounding the helical coil, the outer jacket formed from a plurality of tubular segments positioned coaxially about the coil;

    whereina proximal one of the tubular segments has a durometer of at least about 60 D and a distal one of the tubular segments has a durometer of no more than about 35 D.

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