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输液中的微粒系指50μ以下的微小颗粒物质,其性质不溶于水,在人体内不能代谢。微粒进入人体血管后,能直接造成人体内微小血管阻塞而引起局部缺血或血肿;红细胞集聚在微粒上,还可形成血栓,导致血管栓塞和静脉炎;微粒互相碰撞又可产生过敏反应和血小板减少症。如侵入组织,在巨噬细胞的包围和增殖下生成肉芽肿。微粒具有潜在的一时难以发现的严重危害,微粒的危害及其致害程度不仅与微粒的数目及种类有关,而且与微粒的理化性质和空间构型有关。因此,在当今的医疗实践中,输液中微粒的控制和检测已引起医药界的关切。
Infusion of particles means less than 50μ tiny particulate matter, its nature is insoluble in water, can not be metabolized in the human body. Microparticles into the human blood vessels, can cause a direct result of the body’s micro-vascular occlusion caused by ischemia or hematoma; red blood cells gathered in the particles, but also the formation of thrombus, leading to vascular embolism and phlebitis; microparticles collide with each other and can produce allergic reactions and platelets Reduce disease. Such as invasion of tissue, macrophages in the surrounding and proliferation of granulomas. Particulate has a potential momentarily difficult to detect serious harm, the harm of the particles and the degree of damage not only with the number and type of particles, but also with the physical and chemical properties and spatial configuration of the particles. Therefore, in today’s medical practice, the control and detection of particles in infusion have drawn the medical community’s concern.