[Study of depyrogen deactivation of syringes by using 3 efficacious pyrogen deactivator methods]

2% three-efficacious pyrogen deactivator (TEPD) was put into ultrasound washer for syringe washing. A total of 370 syringes were divided into three groups. Each group was washed by using a different program of sterilization, decontamination, and depyrogen. The results showed that the following program was not only effective for depyrogen but also convenient and inexpensive: (1)5 minutes' ultra-washing by using ultrasound washer with TEPD; (2)suspension over 1 hours; (3) another 5 minutes' ultra-washing; (4)ordinary washing and sterilization.