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Method and appliance for maintaining the natural intraocular pressure

  • US 5,486,165 A
  • Filed: 01/13/1994
  • Issued: 01/23/1996
  • Est. Priority Date: 01/10/1992
  • Status: Expired due to Fees
First Claim
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1. An apparatus for injecting a highly viscous medium into Schlemm'"'"'s canal for maintaining a constant pressure of the aqueous humor circulating from the posterior chamber to the anterior chamber of the eye of an organism, said apparatus comprising an injection unit and a tube which has a closed end and is made of biocompatible material, said tube being connected to the injection unit and designed in the form of an arc of a circle defined by a single curvature with a radius in the range of about 12 mm to 14 mm to generally conform to the curvature of the Schlemm'"'"'s canal, said tube having one end provided on the inside of the arc facing the trabecular tissue with at least one orifice and another end provided with a coupling for connection of the tube to the injection unit for introduction of viscous medium into the Schlemm'"'"'s canal to thereby hydraulically expand the Schlemm'"'"'s canal and burst it at one or more points for creating a corresponding number of openings to form a connection between the Schlemm'"'"'s canal and the trabecular tissue for drainage of aqueous humor.

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