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Ophthalmological surgical instrument, device and method of use

  • US 6,592,541 B1
  • Filed: 06/09/1999
  • Issued: 07/15/2003
  • Est. Priority Date: 07/21/1998
  • Status: Expired due to Term
First Claim
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1. A method of removing a nucleus of a cataract from beneath the cornea of an eye, comprising(a) making an opening in the eye to provide access to the nucleus and allow insertion through the opening of a distal end of a first phaco tip having a solid blade with a face edge adapted to be placed in contact with the nucleus, said face edge characterized in that it does not have any aspiration port therein, (b) inserting the blade of the first phaco tip through the opening and providing ultrasonic energy to the blade while making at least one incision with the blade in the nucleus, said incision having internal walls, (c) cracking the nucleus by inserting into the incisions an instrument which is manually manipulated to apply pressure against the internal walls of the incision to break the nucleus into segments, and (d) inserting through the opening a second phaco tip including an aspiration port therein and applying aspiration while emulsifying the segments and withdrawing the emulsified segments through the aspiration port.

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