Improving disinfection efficacy of lens care regimen for...

Details Improving disinfection efficacy of lens care regimen for... Improving disinfection efficacy of lens care regimen for...

A - Human Necessities

61

L

A61L 12/14 (2006.01) C11D 3/00 (2006.01)

Patent

CA 2637657

A rigid gas permeable lens care composition. The composition includes a disinfecting amount of at least one biguanide antimicrobial agent and a straight chain polyether surfactant based upon PEO-PPO-PEO, PPO-PEO-PPO and combinations thereof. In one embodiment, the straight chain polyether surfactant has an HLB value of less than or equal to 15 and an average molecular weight value of between about 5000 and 7000. Preferably, no rubbing is required to disinfect the rigid gas permeable contact lenses is required. Methods of making and using the same are also described.

L'invention concerne une composition de nettoyage de verres de contact rigides perméables aux gaz. La composition comprend une quantité désinfectante d'au moins un agent antimicrobien de type biguanide et un tensioactif de type polyéther à chaîne linéaire à base de PEO-PPO-PEO, de PPO-PEO-PPO et d'associations de ceux-ci. Dans un mode de réalisation, le tensioactif de type polyéther à chaîne linéaire a une valeur de HLB (balance hydrophile/lipophile) inférieure ou égale à 15 et une valeur de poids moléculaire moyen comprise entre environ 5000 et 7000. De préférence, il n'est pas nécessaire de masser les verres de contact rigides perméables aux gaz pour les désinfecter. L'invention concerne également des procédés de fabrication et d'utilisation de celle-ci.

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