Aqueous ionic solutions and their uses in particular in ophthlamology
OwnerJean-Claude Yvin, Benedict Marie Dominique Halley +1inventors
InventorsJean-Claude Yvin, Benedict Marie Dominique Halley, Didier Leroy
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Abstract
The invention concerns the use for treating and cleaning the eye and is appendages of aqueous ionic solutions obtained from sea water whereof the ionic compositions is qualitatively that of sea water and quantitatively such that their pH ranges between 4 and 9, preferably between 7 and 8 and their osmolality ranges between 150 and 700, preferably between 250 and 350 mOsm/kg.
Claims6
The use, for treating and cleaning the eye and its appendages, of aqueous ionic solutions obtained from seawater whose ionic composition is, from the qualitative point of view, that of seawater, and from the quantitative point of view such that, on the one hand, their pH is from 4 to 9, preferably from 7 to 8, and, on the other hand, their osmolality is from 150 to 700, preferably from 250 to 350 mOsm/kg.
A novel aqueous ionic solution obtained from seawater, characterized by:
- a pH value preferably less than or at most equal to the lowest pH values of seawater,
- an osmolality lower than that of seawater, and
- a composition, from the ionic point of view, which is qualitatively and quantitatively that of seawater, with the exception from the quantitative point of view, on the one hand, of the potassium concentration which is greater than that of seawater and, on the other hand, of the Na, Mg, Ca and Cl concentrations which are less than those of seawater, said concentrations being
- for Na+, from 1 300 to 1 500, preferably from 500 to 1 000 mg/l,
- for K+, from 4 500 to 6 500, preferably from 5 000 to 6 000 mg/l,
- for Mg++, from 50 to 1 300, preferably from 100 to 500 mg/l,
- for Ca++, from 20 to 350, preferably from 40 to 200 mg/l,
- for Cl−, from 4 000 to 6 000, preferably from 4 500 to 5 000 mg/l.
Dependencies are inferred from the claim text.