医务人员的针刺事故注射用针刺伤事故，在日本早在１３年前就已发现，刺伤污染可引起Ｂ型肝炎，并已作为院内感染的原因引起重视．刺伤易发生于使用注时针机会多的医生和护士．那么使用注射用针刺伤危险性究竟有多大，也就是说误刺率有多高，误刺率与注射用针种类是否有关... Medical personnel’s acupuncture accidents for needle acupuncture injuries have been discovered in Japan as early as 13 years ago. Contamination with stab wounds can cause hepatitis B, which has attracted attention as a cause of nosocomial infection. Stabbing can easily occur in doctors and nurses who are more likely to use the timing. How much is the risk of using an injection needle to inject, that is to say how high the rate of false infraction is, and whether the rate of inaccurateness is related to the type of injection needle?