Germicidal colloidal lubricating gels and method of producing the same
AssigneeThe Purdue Frederick Company
InventorsErnest J. Sasmor, Kenneth G. Rothwell
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Abstract
Germicidal properties are provided for colloidal lubricating gels without destruction of the physical properties of the colloidal gel by the incorporation therein of an iodophor within strict limits as to the quantities and relative quantities of the iodophor-former, the iodine and the gel-forming colloid. These germicidal colloidal lubricating gels remain stable and retain their germicidal effectiveness. As a result, these compositions can be used for the lubrication of catheters and other instruments to facilitate their insertion into a body cavity and because these compositions do not cause pain or irritation their use reduces the risk of infection and tissue-trauma.
Claims4
An aqueous germicidal colloidal lubricating gel, comprising water, 0.05-2% by weight iodine, 0.5-7.5% by weight of a physiologically compatible gel-forming colloid selected from the group consisting of methylcellulose, carboxymethylcellulose, hydroxyalkylcellulose, gum karaya, alginic acid, glycol esters of alginic acid, gum guar, pslyllium, acacia and tragacanth, an iodophor-former selected from the group consisting of 0.5-2 parts by weight per part of said colloid of polyvinylpyrrolidone and 0.3-4 parts by weight per part of said colloid of nonylphenoxypoly-(ethyleneoxy)-ethanol and polyoxypropylenepoly-(oxy-propylene) poly-oxyethylene copolymers.
Dependencies are inferred from the claim text.