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US 10,328,644 B2Granted
Method for introducing an active compound into a soft hydrated contact lens
AssigneeSafilens S.R.L.
InventorAlessandro Filippo
Life of this patent
Estimating the term…
Abstract
A method for introducing an active compound into a soft hydrated contact lens comprising the steps of: providing a hypotonic aqueous solution having an osmolarity value less than 150 mOsm and an effective quantity of that active compound, immersing the soft contact lens in the aqueous hypotonic solution, subjecting the contact lens immersed in the aqueous hypotonic solution to mechanical vibrations having a power greater than 100 mW for a predetermined time.
Claims10
A method for introducing a lubricating agent into a soft hydrated contact lens, the method comprising:
- providing a hypotonic aqueous solution having an osmolarity value less than 150 mOsm and comprising an effective quantity of the lubricating agent to be introduced into the contact lens,
- immersing the soft contact lens in the aqueous hypotonic solution,
- subjecting the contact lens immersed in the aqueous hypotonic solution to mechanical vibrations having a power greater than 100 mW for a predetermined time, wherein the predetermined time during which the contact lens, immersed in the aqueous hypotonic solution, is subjected to mechanical vibrations, is at least 10 seconds, divided into cycles of 2 to 10 seconds every 10 to 25 minutes.
Dependencies are inferred from the claim text.