Dual blade ophthalmologic surgery device

  • US 9,820,885 B2
  • Filed: 03/21/2016
  • Issued: 11/21/2017
  • Est. Priority Date: 06/10/2003
  • Status: Active Grant
First Claim
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1. A method for cutting a strip of trabecular meshwork tissue within an eye of a subject, said eye having an anterior chamber, trabecular meshwork tissue and a Schlemm'"'"'s canal, said method comprising:

  • a) providing or obtaining a device which comprises;

    an elongate probe that extends along a longitudinal axis;

    a tip which extends laterally from an end of the probe, said tip comprising a platform which has a top surface, a bottom surface, a right side edge, a left side edge and a terminal end, the terminal end being configured to penetrate through trabecular meshwork tissue;

    the tip having a transverse width from the right side edge to the left side edge, said transverse width being narrowest at the terminal end; and

    first and second spaced-apart cutting edges positioned on the device so as to cut tissue that passes along the top surface of the tip and into contact with the cutting edges;

    b) inserting the probe into the anterior chamber of the eye;

    c) advancing the tip through trabecular meshwork tissue and into the Schlemm'"'"'s Canal of the eye such that trabecular meshwork tissue is in contact with the top surface;

    d) moving the probe to cause the tip to advance through the Schlemm'"'"'s Canal such that trabecular meshwork tissue moves along the top surface of the tip and into contact with the first and second spaced-apart cutting edges, thereby cutting a strip of the trabecular meshwork tissue.

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