Hygienic agent for use in hemodialysis
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsRemy Nicolle, Eric Jourdan-Laforte
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Abstract
The invention concerns a hygienic agent for use in hemodialysis. This hygienic agent based on peracetic acid has an aqueous solution containing 6 to 8 weight % hydrogen peroxide, 0.1 to 1 weight % peracetic acid and 2 to 10 weight % acetic acid. Application to the disinfection, sterilization of dialysis generators, dialyzers, hemofilters and hemodialyzers and circuits of water treatment for hemodialysis.
Claims8
A method of disinfecting and removing tartar from interior portions of a dialysis generator, the method comprising the steps of:
- introducing into the dialysis generator a sterilization composition consisting essentially of an aqueous solution of 6 to 8 percent by weight hydrogen peroxide, 0.3 to 0.4 percent by weight peracetic acid, and 3.5 to 4.5 percent by weight acetic acid, the composition remaining stable for at least a year;
- adjusting the dialysis generator so that the sterilization composition is automatically diluted in water by the ratio of composition-to-water of 1:10 to 1:35 to provide a diluted cleaning composition and so that the diluted composition is placed in contact with the interior portions of the dialysis generator for a period of 20 to 30 minutes;
- and
- rinsing the contacted interior portions of the dialysis generator with osmotic water for a period of about 30 minutes.
A method of disinfecting and removing tartar from water treatment circuits of dialysis equipment, the method comprising the steps of:
- diluting a sterilization composition which remains stable for at least a year and which consists essentially of an aqueous solution of 6 to 8 percent by weight hydrogen peroxide, 0.3 to 0.4 percent by weight peracetic acid, and 3.5 to 4.5 percent by weight acetic acid in water by the ratio of composition-to-water of 1:10 to 1:35 to provide a diluted composition;
- placing the diluted composition in contact with the water treatment circuits of the dialysis equipment for a period of about 30 minutes;
- and
- rinsing the contacted water treatment circuits with osmotic water for a period of 30 minutes to 2 hours.
A method of disinfecting and removing tartar from interior portions of dialyzers, hemofilters and hemodialyzers, the method comprising the steps of:
- diluting a sterilization composition, which remains stable for at least a year and which consists essentially of an aqueous solution of 6 to 8 percent by weight hydrogen peroxide, 0.3 to 0.4 percent by weight peracetic acid, and 3.5 to 4.5 percent by weight acetic acid in water by the ratio of composition-to-water of 1:10 to 2:7 to provide a diluted composition;
- placing the diluted composition in contact with the interior portions of the dialyzers, hemofilters and hemodialyzers for a period of 20 to 30 minutes;
- and
- rinsing the contacted interior portions of the dialysis generator with osmotic water for a period of about 30 minutes.
A composition for disinfecting and removing tartar from dialysis equipment, consisting essentially of an aqueous solution of 6 to 8 percent by weight hydrogen peroxide, 0.3 to 0.4 percent peracetic acid, and 3.5 to 4.5 percent by weight acetic acid.
Dependencies are inferred from the claim text.