Antimicrobial lenses, processes to prepare them and methods of their use
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsAlvarez-Carrigan Nayiby, Brown-Skrobot Susan, Ann-Marie Wong Meyers, Neely Frank, Pall Brian, Rathore Osman
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Abstract
This invention relates to solutions for packaging ophthalmic devices comprising at least one antimicrobial metal salt which prevent the loss of said antimicrobial metal salt during autoclaving and storage.
Claims10
A packaging solution for packaging an ophthalmic device comprising at least one antimicrobial metal salt having a Ksp wherein said solution has an osmolality of about 220 mOsm/kg or greater and is substantially free from packaging solution salts which have anions which when combined with a cation from said antimicrobial metal salt form a salt having a Ksp which is less than about six orders of magnitude greater than said Ksp of said antimicrobial metal salt, such that said ophthalmic device loses less than about 30% by weight of said antimicrobial metal salt during autoclaving and storage in said packaging solution.
Dependencies are inferred from the claim text.