Kernbach-Wighton G, Kuhlencord A, Rossbach K, Fischer G
Institute for Forensic Medicine, University of Göttingen, Germany.
Forensic Sci Int. 1996 Dec 2;83(2):95-103. doi: 10.1016/s0379-0738(96)02020-8.
During autopsies, an open oscillating saw produces large quantities of respirable bone-dust, which is able to carry microbes over several metres. Experiments were done using a modified (open) undulation saw (spray tube to moisten the saw-blade with water). Saw-dust was asservated with culture media. Colonies were identified macroscopically. Microbes in the air were quantified (per unit of time). A remarkable reduction of saw-dust is done by an integrated spray tube using water. There remains a contamination at the head of the autopsy table in the level of the table top. We found a complete decontamination 150 cm above the floor. No spreading of particles carrying microbes was seen over distances of more than 1.5 m. The risk of an airborne infection is minimal when using a manual saw (absence of grinding-dust). The modified type of an 'oscillating saw with a spray-tube' may be considered a practicable compromise between a manual saw and an unprotected undulation saw. It is necessary to complete the precautions against airborne infections by breath masks and safety-goggles.
在尸检过程中，开放式摆动锯会产生大量可吸入的骨粉尘，这些粉尘能够携带微生物传播数米远。实验使用了一种改良的（开放式）摆动锯（带有喷雾管，用于用水湿润锯片）。锯末用培养基保存。菌落通过肉眼识别。对空气中的微生物进行了定量（每单位时间）。使用集成喷雾管喷水可显著减少锯末。在解剖台头部台面高度仍存在污染。我们发现地面上方150厘米处完全无污染。未观察到携带微生物的颗粒在超过1.5米的距离上扩散。使用手动锯时空气传播感染的风险极小（无研磨粉尘）。改良型“带喷雾管的摆动锯”可被视为手动锯和无防护摆动锯之间切实可行的折衷方案。有必要通过呼吸面罩和安全护目镜来完善针对空气传播感染的预防措施。
