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Methods and apparatus for delivering ocular implants into the eye

  • US 9,226,852 B2
  • Filed: 04/21/2015
  • Issued: 01/05/2016
  • Est. Priority Date: 11/20/2007
  • Status: Active Grant
First Claim
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1. A cannula for an ocular implant delivery system comprising:

  • a tubular member comprising a straight proximal portion, a curved portion extending distally from the proximal portion, a distal tip and a distal opening surrounded by a distal opening surface extends solely proximally from the distal tip,the distal tip being adapted to be inserted into an anterior chamber of a human subject'"'"'s eye, through trabecular meshwork and into Schlemm'"'"'s canal of the eye,the proximal portion of the tubular member being adapted to extend from a location exterior to the eye when the distal tip is in Schlemm'"'"'s canal of the eye,the cannula being further adapted to cooperate with an advancement mechanism to advance an ocular implant through the tubular member toward and through the distal opening into Schlemm'"'"'s canal of the eye when the distal tip is disposed in Schlemm'"'"'s canal,the curved portion of the tubular member having a curve adapted to achieve substantially tangential entry of the ocular implant into Schlemm'"'"'s canal.

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