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Active Drainage Systems With Pressure-Driven Valves and Electronically-Driven Pump

  • US 20130150774A1
  • Filed: 12/09/2011
  • Published: 06/13/2013
  • Est. Priority Date: 12/09/2011
  • Status: Active Grant
First Claim
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1. An IOP control system for implantation in an eye of a patient, comprising:

  • a drainage tube configured to convey aqueous humor from an anterior chamber of the eye; and

    a pressure-driven valve system in fluid communication with the drainage tube, the valve system actuatable in response to pressure differentials and configured to control flow rates of the aqueous humor, the valve system including a first pressure-driven valve and a second valve,wherein the pressure-driven valve system is configured to control flow rates of the aqueous humor along the drainage tube by shifting in response to pressure differentials between the anterior chamber of the eye, the drainage site, and the atmospheric pressure acting on the pressure-driven valves.

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