Lund N, Cardell B, Törnell B M, Odman S
Acta Anaesthesiol Scand. 1980 Aug;24(4):265-71. doi: 10.1111/j.1399-6576.1980.tb01547.x.
A method for disinfection and aseptic assembly of the MDO (Mehrdraht Dortmund Oberfläche) oxygen electrode has been evaluated. The method is based on treating each electrode component separately and then assembling the different parts under aseptic surgical conditions. The performance of the disinfected electrode was studied and found to be unchanged as compared with a non-disinfected electrode. Bacteriological studies on the effectiveness of the disinfection technique described and on the permeability of the electrode membranes to bacteria and bacterial spores were performed. The electrode membranes were penetrated by bacteria in experiments simulating in-use conditions in about 11% of membranes tested, after contamination of the inner electrode surface with heavy inocula. When studies were performed with the disinfected MDO oxygen electrode on humans, routine cultures from the wound were positive in about 10% of the cases. No clinical wound infection was seen. The majority of the positive cultures were probably caused by the surgical technique rather than the handling of the electrode. The disinfection method for the MDO oxygen electrode described in this paper makes it possible to use the electrode clinically, except in cases of hepatitis.
已对MDO（多特蒙德多丝表面）氧电极的消毒和无菌组装方法进行了评估。该方法基于分别处理每个电极组件，然后在无菌手术条件下组装不同部件。研究了消毒后电极的性能，发现与未消毒的电极相比没有变化。对所述消毒技术的有效性以及电极膜对细菌和细菌孢子的渗透性进行了细菌学研究。在对内电极表面进行大量接种污染后，在模拟使用条件的实验中，约11%测试的膜中细菌穿透了电极膜。当对消毒后的MDO氧电极进行人体研究时，伤口的常规培养在约10%的病例中呈阳性。未观察到临床伤口感染。大多数阳性培养可能是由手术技术而非电极处理引起的。本文所述的MDO氧电极消毒方法使得该电极除肝炎病例外可在临床上使用。
