Back to results
US 5,298,182 AGranted
Rapid ophthalmic glycol/lower alkanol cleaning and disinfecting solution and method
AssigneeCiba-Geigy Corporation
InventorsFu-Pao Tsao, Susan A. Littlefield, John H. Stone
Life of this patent
Estimating the term…
Abstract
A contact lens polymer material cleaning and disinfecting solution has about 21% by weight of a C.sub.3 -C.sub.8 alkylene glycol, about 16% by weight of a lower alkanol, and 5% by weight of an ophthalmic device material compatible surfactant, about 1% by weight of a pH adjusting or regulating agent, about 1% by weight of a tonicity builder, about 0.1% of a viscosity enhancing agent, and water.
Claims6
A contact lens polymer material cleaning and disinfecting solution comprising:
- a) about 21% by weight of a C.sub.3 -C.sub.8 alkylene glycol,
- b) about 16% by weight of a lower alkanol,
- c) about 5% by weight of an ophthalmic device material compatible surfactant,
- d) about 1% by weight of a pH adjusting or regulating agent,
- e) about 1% by weight of a tonicity builder,
- f) about 0.1% of a viscosity enhancing agent, and
- g) the balance water.
4 more elements
Dependencies are inferred from the claim text.