Cleansing agent for surgical instruments

Details Cleansing agent for surgical instruments Cleansing agent for surgical instruments

C - Chemistry, Metallurgy

11

D

C11D 3/386 (2006.01) C11D 1/14 (2006.01) C11D 1/65 (2006.01)

Patent

CA 2189257

The invention concerns a cleansing agent concentrate of the following composition: 0.5-8.0 wt % at least one C5-C12 alkyl sulphate salt; 4.0-15.0 wt. % at least one auxiliary agent; 4.0-10 wt. % at least one alkanol amine; and at least one commercial proteolytic enzyme in a quantity of 0.005-0.1 Anson and, optionally, usual acids or bases for pH regulation, usual complex- forming agents and preservatives, and the remainder (up to 100 wt. %) water. A process for cleansing surgical instruments involves the following steps: application of a 0.5-100 % aqueous solution of a cleansing agent concentrate according to one of the claims 1-6 with a pH value of 8-9; allowing the solution to work in at a temperature between room temperature and 55 ~C for between two seconds and 20 minutes; and, rinsing if required, heat sterilisation.

L'invention concerne un concentré d'agent de nettoyage de la composition suivante: 0,5-8,0 % en poids d'au moins un sel de sulfate d'alkyle C¿5?-C¿12?; 4,0-15,0 % en poids d'au moins un agent auxiliaire; 4,0-10 % en poids d'au moins une alcanolamine; et au moins une enzyme protéolytique du commerce, en une quantité de 0,005-0,1 Anson et, éventuellement, des acides ou des bases habituels utilisés pour ajuster le pH, des complexants habituels et des conservateurs habituels, le reste (pour atteindre les 100 % en poids) étant constitué d'eau. Un procédé permettant de nettoyer des instruments chirurgicaux consiste à: appliquer une solution aqueuse à 0,5-100 % d'un concentré d'agent de nettoyage selon une des revendications 1-6, présentant un pH de 8-9; laisser agir la solution à une température comprise entre la température ambiante et 55 ~C, pendant 2 s-20 min; rincer les instruments et, éventuellement, les stériliser par la chaleur.

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