Laminar flow clean operating room requirements

Laminar flow clean operating room is the use of air cleanliness technology to microbial contamination to take different degrees of control, to achieve the control of air cleanliness in the spatial environment suitable for various types of surgical requirements; and to provide the appropriate temperature, humidity, to create a clean and comfortable surgical space environment. Anhui people and purification analysis, because the operating room to strictly control the number of low bacteria and low anesthetic gas concentration, so the stability of laminar flow ultra-clean device is an important acceptance index of laminar flow purification operating room.

Clean operating room not only requires a high degree of clean air (into the operating room air must first be purified by a high-efficiency filters), but also requires the ability to control the direction of circulation of the airflow (i.e., the use of laminar flow ultra-clean device), so that the airflow from the high degree of cleanliness of the surgical region to the low degree of cleanliness of the region, and to take away and discharge dust particles (dust particles) and bacteria in the airflow; laminar flow is a fine, thin layer of the airflow, to the same direction with a uniform flow rate of transportation. With a uniform flow rate to the same direction; the direction of the purified airflow is divided into two types of vertical laminar flow and horizontal laminar flow.

Vertical laminar high-efficiency filters installed in the surgical beds directly above the airflow blowing vertically, the return air in the corners of the wall, to ensure that the cleanliness of the operating table up to the standard, generally more vertical laminar flow type effect is better.

Laminar flow operating room is a "positive pressure" environment, the air pressure according to its different areas (such as operating room, sterile preparation room, brush the hand room, anesthesia room and around the clean area, etc.) cleanliness and different requirements.

Different levels of laminar flow operating room air cleanliness standards are different, such as the U.S. federal standards for 100-class laminar flow operating room standards for the number of dust particles per cubic foot of air ≥ 0.5 μm, ≤ 100 or ≤ 3.5 per liter of air. 1000-class ≥ 0.5 μm dust particles per cubic foot of air ≤ 1,000 or ≤ 35 per liter of air. And so on.

Different levels of laminar flow system, the air replacement rate in the controlled space environment is also different, the higher the level of cleanliness, the faster the replacement rate, and vice versa.

The walls of the clean operating room should be painted with a special coating that has antibacterial effect, bright light, soft colors and no need to use water to clean and rinse.

The walls of clean operating rooms are painted with special paints that have antibacterial properties.