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Register a new userVentilation of operating rooms' parameters and its different flow types
بارامترات تهوية غرف العمليات و نماذج تدفقاتها المختلفة
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محمد الحناوي( باحث )
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نظراً إلى الأهمية البالغة التي يجب أن تولى بها غرف العمليات الجراحية من حيث التصميم (و على الأخص بارامترات نظام التهوية و التكييف) فقد أُجرِيت عدة دراسات و بحوث و وضعت الكودات العالمية بغية إعطاء البارامترات المثلى لمواجهة هذه المهمة. المئات من المشافي في سورية و كذلك حول العالم ما تزال تعاني من تجرثم الجراح في أثناء العمليات الجراحية. يقوم هذا البحث على إعادة تجميع و توثيق و بحث أفضل المعلومات التي تساعد الباحث و المصمم لإنجاز مهمتهم، و لاسيما أن هذه المعلومات غير متوافرة في مرجع واحد معاً. ناقش البحث المتطلبات المثالية لتكييف هواء غرف العمليات من حيث الحرارة، و الرطوبة النسبية، و الفلترة اللازمة، و عدد مرات تبديل الهواء اللازمة، و الضغوط الواجب المحافظة عليها، و السرعة الوجهية المنصوح بها. و كذلك أضاف دراسة بحثية مستفيضة للنظام الصفائحي و ميزاته عن الأنظمة التقليدية. ناهيك عن وضع أنظمة التعقيم المساندة باستخدام الأشعة فوق البنفسجية داخل الدكتات و في الغرف. توصل البحث أن هناك أفكاراً جديدة منها تزويد الهواء من الأرض و طرده على مستوٍ علوي، أو دفع الهواء من الجدار و طرده من فتحات على الجدار نفسه ربما تكون الحل للمعوقات جميعها.
Due to the high importance of designing operating rooms (especially the air conditioning parameters), many studies, researches and international codes were achieved in order to reach the optimum parameters for this mission. Hundreds of hospitals in Syria and all around the world are still suffering from wounds contamination during surgery. This paper is dedicated to re document collect the latest information to help researcher and designers achieving their mission, especially those information that are not available in one reference by itself. The research paper discusses the optimal air conditioning requirement like, temperature, humidity, required filtration, number of air changes per hour, pressures to be maintained and the recommended face velocity. An extended research studies focus on laminar flow system, and its advantages over the conventional ones. It mentions the sterilization supporting systems which use UVGI In-ducts and in rooms. The paper concluded that new ideas adopting different philosophies by either supplying fresh air from lower rooms areas or laminar flow wall should be further investigated.
References used
Rui, Z. Guangbei, T. Jihong, L. Study on biological contaminant control strategies under different ventilation models in hospital operating room. Building and Environment 43 (2008) 793–803
Macario, A. Vitez, T.S. Dunn, B. McDonald, T. Where are the costs in perioperative care? Analysis of hospital costs and charges for inpatient surgical care, Anesthesiology 83 (1995) 1138–1144
ISO 14644-1. Cleanrooms and associated controlled environments. Part 1. Classification of air cleanliness, International Organization for Standardization Technical Committee 209, 1999
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