JPS6464663A - Sterilizing method - Google Patents

Abstract

PURPOSE:To prevent the deterioration of quality and capacity of the internal packed substance of an artificial organ, in passing a liquid through the artificial organ using a liquid passing device, by discharging the liquid whose temp. is lowered immediately before the artificial organ and passing only the liquid having predetermined temp. through said artificial organ. CONSTITUTION:Water, a physiological saline solution or an aqueous solution slightly containing a stabilizer same to the packed liquid in an artificial organ 2 is received in a sterilized liquid storage tank 6 and heated to high temp. of 127 deg.C using a jacket 8 and held at that temp. for 30min or more to be sterilized to obtain a sterilized high temp. liquid having predetermined temp. The obtained high temp. liquid of 127 deg.C is held in the sterilized liquid storage tank 6 at 123-127 deg.C near to the steam sterilization temp. of the artificial organ 2. At this time, the gaseous phase part in the sterilized liquid storage tank 6 becomes a slightly pressurized state and the pressure thereof becomes about 2.3atm. When a liquid passing apparatus is heated to 121 deg.C or more and the temp. of the discharged liquid is confirmed by a thermometer 15, a three-way valve 13 is closed on the side of the discharge port thereof and opened on the side of the artificial organ 2 to supply the liquid through a circuit inlet port 11.