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US 5,925,317 AGranted
Dual neutralization system for iodine treatment of contact lenses
AssigneeBausch & Lomb Incorporated
InventorsJill S. Rogalskyj, David J. Heiler, Alyce K. Dobie
Life of this patent
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Abstract
A method and system for disinfecting contact lenses with iodine using a neutralizing solution having a first, rapid neutralizing component which completes its reaction with available iodine in less than five seconds and a second, slower neutralizing component which completes its reaction with available iodine in about 3 to 30 minutes.
Claims50
In a method for treating a contact lens which comprises disinfecting the lens with a disinfecting amount of iodine, the improvement of which comprises:
- (a) providing a neutralizing solution comprising a first, rapid neutralizing component that completes its reaction with available iodine in less than five seconds and a second, slower neutralizing component that completes its reaction with available iodine in about 3 to 30 minutes;
- (b) forming a solution by combining the neutralizing solution and iodine, the amount of iodine provided such that a disinfecting amount remains after the iodine and the first, rapid neutralizing component react;
- (c) contacting the lens with the solution for a sufficient time to disinfect the lens and neutralize the iodine in the solution;
- and
- (d) rinsing the lens.
2 more elements
A system for disinfecting contact lenses comprising:
- (a) a neutralizing solution comprising a first, rapid neutralizing component capable of completing its reaction with available iodine in less than five seconds and a second, slower neutralizing component capable of completing its reaction with available iodine in about 3 to 30 minutes and
- (b) iodine.
Dependencies are inferred from the claim text.