Method for producing a sterile preservative-free aerosol saline solution
AssigneeCiba-Geigy Corporation
InventorsErwin Schweigl, Thomas P. Hayes, Dusan Kljajic, Rolf Jellositz
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Abstract
Described is a method, and resulting product, for producing a sterile preservative-free areosol contact lens solution comprising; aseptically filling a pre-sterilized aerosol container with a contact lens solution preserved with sufficient hydrogen peroxide; aseptically introducing into the container means, such as a catalyst, for converting the hydrogen peroxide into inert or inactive substances one of which is a suitable propellant; and sealing and storing the container for a time sufficient to complete the inactivation of the hydrogen peroxide and creation of the suitable propellant.
Claims10
A method for producing a sterile preservative-free aerosol product comprising:
- (a) aseptically filling a presterilized aerosol container with a solution preserved with sufficient hydrogen peroxide, said solution containing or mixed with the product to be dispensed;
- (b) aseptically introducing into the aerosol container means for converting the hydrogen peroxide into inert substances one of which is a propellant;
- and
- (c) sealing and storing the aerosol container for a time sufficient to allow complete inactivation of the hydrogen perixode and creation of sufficient propellant to dispense the product from said aerosol container.
Dependencies are inferred from the claim text.