Abstract
Because so many common surgical problems can now be addressed by the laparoscopic approach, the issue of sterile processing has to be reconsidered. Selected laparoscopic instrumentation was analyzed regarding wear and tear and decontamination after sterile processing following 6,000 surgical laparoscopies carried out between 1990 and 1996 at the Academic Hospital Moabit, Berlin. Fewer than 7.9 (parts of) instruments failed per 100 laparoscopies. Most of the repairs involved scissors. The main problems were blunting, burnt or disconnected electromechanical components, defective insulation, and damaged or lost parts of dismantable instruments. Residues of human blood proteins were detected on a few instruments. The effect of intraluminal rinsing was documented by measuring the iron content (as an indicator for blood contamination). A comparison of costs showed that it was >10 times cheaper to use instrumentation with reusable components. The sterile processing of economic reusable instrumentation for laparoscopies needs staff well trained in sterile supply. Instrument design should allow easy dismantling and rinsing of internal parts. Insulating compounds present a problem for decontamination. Disinfection with aldehydes before cleaning the lumina of instruments must be avoided because protein coagulation will occur. A tube-in-tube concept for tubular instruments offering compatibility should be favored.
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