IP Library Granted Patent US 7,615,523
Granted Patent B2
US 7,615,523 · App. 11/544,401 · Granted Nov 10, 2009

Lens care product containing dexpanthenol

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Quick Facts
Patent No.
US 7,615,523
App. No.
11/544,401
Granted
Nov 10, 2009
Kind
B2
Abstract

The present invention relates to contact lens care product comprising dexpanthenol. The invention similarly relates to the usage of a contact lens care compositions of this kind for cleaning and optionally disinfecting contact lenses.

Claims (41)

1. Contact lens care composition comprising dexpanthenol, D-sorbit and 2-amino-2-hydroxymethyl-1,3-propanediol.

2. Contact lens care composition according to claim 1 , comprising an aqueous solution comprising 0.5 to 4 percent by weight, preferably 1 to 3 percent by weight, of dexpanthenol, based on the total weight of the contact lens care composition.

3. Contact lens care composition according to claim 2 , comprising 0.8 to 6 percent by weight, preferably 1 to 3 percent by weight, of D-sorbit, based on the total weight of the contact lens care composition.

4. Contact lens care composition according to claim 1 , which comprises one or more further constituents selected from the group consisting of buffer substances, substances that affect the tonicity, surface-active substances, substances that affect viscosity, complexing agents and/or antimicrobial compounds.

5. Contact lens care composition according to claim 1 , which comprises dexpanthenol, one or more buffer substances, PHMB, sodium chloride or potassium chloride and a complexing agent.

6. Contact lens care composition according to claim 5 , which contains

dexpanthenol

5 to 20

g/l

NaCl or KCl

3 to 9

g/l

PHMB

0.0005 to 0.05

g/l

EDTA

0.1 to 2

g/l

as well as buffer substances and water, and it has a pH value of 6 to 8.

7. Contact lens care composition according to claim 3 , which comprises dexpanthenol, D-sorbit, one or more buffer substances, PHMB, sodium chloride or potassium chloride and a complexing agent.

8. Contact lens care composition according to claim 7 , which comprises

dexpanthenol

5 to 20

g/l

D-sorbit

10 to 30

g/l

NaCl or KCl

0 to 5

g/l

PHMB

0.0005 to 0.05

g/l

EDTA

0.1 to 2

g/l

as well as buffer substances and water, and it has a pH value of 6 to 8.

9. Contact lens care composition according to claim 6 , which comprises, in addition, a surface-active substance.

10. Use of a contact lens care composition according to claim 1 , for cleaning and optionally disinfecting a contact lens.

11. Method for cleaning and optionally disinfecting a contact lens, wherein a contact lens care composition according to claim 1 is brought into contact with a contact lens for a period of time that is sufficient to clean and optionally disinfect it.

12. Method for cleaning and optionally disinfecting a contact lens, wherein a contact lens care composition according to claim 3 is brought into contact with a contact lens for a period of time that is sufficient to clean and optionally disinfect it.

Assignments (1)
CONFIRMATORY DEED OF ASSIGNMENT EFFECTIVE APRIL 8, 2019 Recorded Dec 10, 2019
From: NOVARTIS AG
To: ALCON INC.
Reel/Frame 051454/0788 →