Quint U, Benen T
Orthopädisch-Traumatologisches Zentrum, St. Marien-Hospital Hamm.
Leiter Technik, encadi GmbH, Münster.
Z Orthop Unfall. 2016 Apr;154(2):157-62. doi: 10.1055/s-0035-1568194. Epub 2016 Feb 4.
Integrated ventilation systems with low turbulence displacement flow (TAV) are generally legally required in the architectural structure of operating theatres. However, it seems that the instruments laid out on sterile covered tables do not have the best possible protection from bacteria. Within an operating theatre, different bacteria counts are possible on the instruments. This prospective controlled study was conducted to demonstrate the influence of instrument tables with integrated horizontal flow on contamination with pathogens in comparison with conventional tables. In an operating theatre (OT) with a ceiling legally appropriate for TAV (2.40 m × 1.20 m), microbiological samples were placed on a table with integrated TAV flow (n = 100) and on a conventional instrument table (n = 100). The routine qualification of the OT was on an ongoing basis and was in accordance with DIN 1946-4: 1999 standards (in accordance with DIN measurement of recovery time 1946-4: 12-2008). This corresponds to the OT of the room class Ib. The results show significant differences between the two tables. The bacteria count and the percentage of contamination were many times higher on the conventional table. It is important to understand that the instruments are not completely protected against contamination after opening the pack and during the operation. Remedial measures are possible to optimise the sterility the instrument table.
在手术室的建筑结构中，通常法律要求配备具有低紊流置换流的集成通风系统（TAV）。然而，放置在无菌覆盖台上的器械似乎并未得到对细菌的最佳防护。在手术室内，器械上可能存在不同的细菌数量。本前瞻性对照研究旨在证明与传统手术台相比，具有集成水平流的器械台对病原体污染的影响。在一个天花板符合TAV法定要求（2.40米×1.20米）的手术室（OT）中，将微生物样本放置在具有集成TAV流的手术台上（n = 100）和传统器械台上（n = 100）。手术室的常规鉴定持续进行，并符合DIN 1946-4: 1999标准（符合DIN 1946-4: 12-2008中恢复时间的测量）。这对应于Ib级房间的手术室。结果显示两张手术台之间存在显著差异。传统手术台上的细菌数量和污染百分比要高出许多倍。必须明白，器械在打开包装后以及手术过程中并不能完全防止污染。可以采取补救措施来优化器械台的无菌状态。
