Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using direct contact steam to disinfect or sterilize
Reexamination Certificate
2011-06-28
2011-06-28
Warden, Jill (Department: 1773)
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using direct contact steam to disinfect or sterilize
C523S106000, C526S301000, C526S323200, C526S320000, C351S16000R, C525S093000, C510S112000, C424S078050, C206S005100, C252S380000
Reexamination Certificate
active
07968050
ABSTRACT:
The present invention provides an aqueous solution for sterilizing and storing ophthalmic devices, preferably a contact lens, made of a hydrogel material, preferably a poly(oxyalkylene)-containing hydrogel material. The solution comprises one or more organic buffer agents, such as a Good buffer or a bis-aminopolyols; an organic tonicity-adjusting agent with multiple hydroxyl groups in an amount sufficient to provide an osmolarity of from about 200 to about 450 mosm/l, wherein the aqueous solution has a pH of from about 5.5 to about 8.5, provided that the aqueous solution include phosphate buffer at a concentration of about 15 mM or less and about 5000 ppm sodium chloride. The present invention also provides a method for sterilizing and storing an ophthalmic device using an aqueous solution of the invention.
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Mowrey-McKee Mary Flowers
Smith Dawn
Vogt Jürgen
Chorbaji Monzer R
Hu Sheng-Hsin
Novartis AG
Warden Jill
Zhou Jian
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