Contact lens purification system

Details Contact lens purification system Contact lens purification system

A - Human Necessities

61

L

A61L 2/18 (2006.01) A61L 2/20 (2006.01) A61L 9/00 (2006.01) A61L 12/12 (2006.01) G02C 13/00 (2006.01) C02F 1/78 (2006.01)

Patent

CA 2089887

Contact lenses are purified by contact with ozone in a compact system that includes an ozone generator (15), a purifying liquid in a lens chamber (20), and a pumping system (23) for flowing liquid and gas in a way that brings ozone dissolved in a pu- rifying liquid into contact with the lenses (30). In some embodiments, undissolved ozone can also contact the lenses (30). Several preferred arrangements are shown for accomplishing the lens purification with such an ozone disinfection system having features such as a hydrophobic element (12) for isolation liquid from the generator (15), a timer (48) or an arrangement (40) to vent excess ozone from the generator (15).

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