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在诊疗技术操作中,各种注射几乎每天都在进行。有些基层医疗单位在连续注射时,只换针头不换注射器,个别医护人员甚至1支注射器接连给多人注射。这种现象在进行大规模预防接种时更为常见。众所周知,乙型肝炎能通过极微量的血液传播。国外有人报告,在39次注射中,发现17次(44％)针头受到血液污染。我们对125例肌肉注射患者进行观察,污染率为36％。有人检查155支曾经使用过的注射器,发现乙型肝炎表面抗原(HBsAg)阳性的占6.5％。用电子显微镜检查了给多个HBsAg阳性者注射过的1支注射器内的剩余液,发现了球状和管状HBsAg颗粒。上述各项研究,都证实了只换针头不换注射器,或1支注射器连续使用多次均可造成乙型肝炎的传
In the treatment of technical operations, a variety of injections are carried out almost every day. In the case of continuous injection, some primary medical units only change needles for syringes, and individual medical staff and even one syringe inject them in succession. This phenomenon is more common in large-scale vaccination. It is well-known that hepatitis B can be transmitted through a tiny amount of blood. Someone abroad reported that in 39 injections, 17 (44%) needles were found to be contaminated with blood. We observed 125 patients with intramuscular injection at a contamination rate of 36%. Someone checked 155 of the used syringes and found that 6.5% of them were positive for hepatitis B surface antigen (HBsAg). The remaining fluid in a syringe injected with multiple HBsAg positive individuals was examined by electron microscopy and spherical and tubular HBsAg particles were found. The above studies have confirmed that only for the needle does not change the syringe, or a syringe used repeatedly for many times can cause the spread of hepatitis B