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Method for manufacturing an atherectomy cutter having a positive angle of attack

  • US 5,742,019 A
  • Filed: 10/23/1995
  • Issued: 04/21/1998
  • Est. Priority Date: 01/13/1992
  • Status: Expired due to Fees
First Claim
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1. A method for manufacturing an atherectomy cutter comprising the steps of:

  • forming a cutter blank having a first cylinder with a first diameter a second cylinder with a second diameter, and a substantially uniformly tapered section therebetween;

    forming a passageway substantially through said cutter blank to create walls having a substantially similar thickness;

    creating a pair of substantially, diametrically opposed flats on said tapered section, each said flat having a proximal end, a distal end, and a substantially planar section therebetween; and

    removing said wall of said tapered section between said flats to create a plurality of blades, each said blade having at least one cutting edge defined by said flat and a respective side surface oriented at an angle from said flat.

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