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Device for removing cataracts

  • US 6,322,557 B1
  • Filed: 12/10/1998
  • Issued: 11/27/2001
  • Est. Priority Date: 12/10/1997
  • Status: Expired due to Fees
First Claim
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1. A device for removing cataracts comprisinga source of pulse laser radiation with a laser tip intended for insertion into the cavity of an eye through a first cut and having a working part intended for placement in the anterior section of the eye during removal of a cataract-changed lens, an irrigator/aspirator provided with a tip intended for insertion into the cavity of the eye through a second cut and having a working part intended for placement in the anterior section of the eye during removal of a cataract-changed lens, said laser tip is placed at an angle within the range of from 1 to 180 degrees relative to said irrigator/aspirator tip, a concentrator for concentrating on a cataract-changed lens of an eye or in direct proximity thereto an acoustic wave induced by pulse laser radiation from said source of pulse laser radiation impinging on the lens of an eye, the concentrator being made in the form of at least one hollow body, the walls of which are made of a material, whose light absorption factor at the wavelength of laser radiation is within the range of from 0.001 to 10 000 cm

  • 1 selected from the group consisting of fluorite, sapphire, quartz and phosphate glass, and the ratio of the length of which to its inner diameter is within the range of from 1 to 100, said concentrator placed coaxially with said irrigator/aspirator tip.

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