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Guidewire having compound taper

  • US 5,865,767 A
  • Filed: 07/10/1996
  • Issued: 02/02/1999
  • Est. Priority Date: 07/10/1996
  • Status: Expired due to Term
First Claim
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1. An elongate flexible guidewire comprising a core wire, said core wire comprising a distal portion including a distal tip, said distal portion including a compound taper portion proximal of said distal tip, said compound taper portion comprising a first taper portion extending from a first diameter of said core wire to a second diameter of said core wire that is greater than said first diameter, and a second taper portion adjacent the first taper portion and extending from said second diameter of said core wire to a third diameter of said core wire that is greater than said second diameter, said compound taper portion continuously tapering from said first diameter to said third diameter, an outer surface of said first taper portion having an angle with respect to a central longitudinal axis of said guidewire that is greater than an angle of an outer surface of said second taper portion with respect to said central longitudinal axis.

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