Outline of pollution level in laminar operation room
To create a comfortable environment conducive to the task for medical staff, to meet the strict requirements of air temperature, humidity, wind speed, refreshment and cleanliness, noise and so on during the operation process. As a result, the hospital pollution engineering operation Department has built a clean area, quasi-clean area, common area strictly divided, with a clear flow direction and rigorous three-dimensional functional area.
Air CFU / m3: < 10 objects'appearance CFU / cm3: < 5 medical staff's hand CFU / cm3: < 5 with the improvement and progress of pollution engineering conditions, environment and medical quality in ancient hospitals, laminar flow equipment has gradually been equipped and used in operating rooms. Let's give a brief introduction to our company's design concept.
Laminar flow operating room uses air cleaning technology to control microbial purification at different levels, to control the air cleanliness in the space environment to meet the requirements of all kinds of operations, and to provide suitable temperature and humidity to create a clean and comfortable operating space environment. Laminar flow operating room requires not only highly clean air (the air entering the operating room must be polluted by high-efficiency filters first), but also control the flow direction of airflow (i.e. super-clean installation of laminar flow), so that airflow flows from high-cleanliness operating area to low-cleanliness area, and takes and discharges dust particles (dust) from airflow. The laminar flow is a thick, thin layer of air flow, which is delivered in the same direction at the average velocity. The direction of the polluted air flow is divided into vertical laminar flow and degree laminar flow. Vertical laminar flow high efficiency filter is installed on the wall side of the foot of the patient. The air flow is blown and the return air outlet is set on the ceiling near the wall on the absolute side. Generally, vertical laminar flow is better.
Laminar flow operating room is a "positive pressure" environment, and its air pressure varies according to different requirements of cleanliness in different areas (such as operating room, sterile preparation room, brushing room, clean area around, etc.). The air cleanliness standards for different operating room pollution levels are different. For example, the US Federal Standard for Class 100 laminar flow operating rooms is the number of dust particles (> 0.5 um) per cubic foot of air, (< 100 particles) or (< 3.5 particles per liter of air. The 1000 level is the number of dust particles in the air of more than 0.5 m per cubic foot, less than 1000 or less than 35 in each liter of air. By analogy.
The air replacement rate varies with the pollution level of laminar flow operating room. The higher the cleanliness level, the faster the replacement rate, and vice versa. The wall of laminar operating room is painted with special antimicrobial paint, which is bright and soft in color and does not need to be washed with water.
This article is organized by Shandong Jingzhiyuan Purification Engineering Co., Ltd. http://www.sdyhrs.com. We will provide you with operating room decoration knowledge. Interested friends can pay attention to us, thank you!!