Bambauer R, Mestres P, Pirrung K J, Sioshansi P
University of Saarland, Homburg/Saar, Germany.
Artif Organs. 1994 Apr;18(4):272-5. doi: 10.1111/j.1525-1594.1994.tb02194.x.
Large-bore catheters for extracorporeal detoxification methods without and with treated surface with silver or silicone were investigated after removal with a scanning electron microscope and for bacterial colonization. In 42 large-bore catheters of three different materials, small deposits of fibrin and protein on the inner and outer surface were seen. This second layer covered the entire surface after 3 days and increased to a thickness of 3 to 60 microns during the following days. Bacterial colonization was observed in 38.1%. In contrast to these results, the catheters with the treated outer surface showed a very low thrombogenicity and a low contamination rate of 6.7%.
对用于体外解毒方法的大口径导管进行了研究，这些导管有的未经过处理，有的其表面经过银或硅酮处理，移除后用扫描电子显微镜观察并检测细菌定植情况。在42根由三种不同材料制成的大口径导管中，在内表面和外表面均可见少量纤维蛋白和蛋白质沉积物。这第二层在3天后覆盖了整个表面，并在随后几天增加到3至60微米的厚度。观察到细菌定植率为38.1%。与这些结果形成对比的是，外表面经过处理的导管显示出非常低的血栓形成性，污染率仅为6.7%。
