Laminar flow clean operating room
Laminar flow operating room clean air technology is the use of microbial contamination to take a different degree of control, to control the space environment, clean air requirements suitable for all types of surgery; and to provide the appropriate temperature, humidity, creating a clean and comfortable surgical space environment . Since the clean operating room should be strictly controlled low bacterial counts and low concentrations of anesthetic gas, the stability of laminar flow clean device is laminar flow operating room of an important acceptance criteria. Because of the nuances of Europe standards and the Chinese environment clean operating room, the conventional international standards and domestic regional industry standards are generally difficult to ensure long-term stability of the operating room purification (generally only 3--10 years to rebuild, and low-grade engineering that is in need of renovation 1 year) , so there is a clear division in terms of quality engineering grade. Some famous purification engineering company, in addition to prevailing standards, the basic features purify indicators higher than the prevailing international standards itself perform.
First, the stream layer operating room - clean and comfortable work environment
Laminar flow operating room requires not only a high degree of clean air (entering the operating room efficiency air filters purify the first subject), but also required to control the flow direction of the air flow (ie the use of laminar flow clean device), the flow of air from the high clean surgical area clean and low flow areas, and take away the dust and exhaust gas stream particles (dust) and bacteria; laminar flow is a surge of small, thin air, with a uniform velocity conveying in the same direction; purify airflow direction is divided into two vertical laminar flow and horizontal laminar flow. Just above the vertical laminar flow (Supply air ceiling for operating theatre) high efficiency filter installed in the surgical bed, air vertically blown, return air located in the four corners of the walls, to ensure the cleanliness standard operating table, and more generally vertical laminar flow better. Laminar flow operating room is a "positive pressure" environment, the air pressure according to their different areas (such as the operating room, sterile room ready, brush in hand room, a clean room anesthesia and surrounding area, etc.) cleanliness of the different requirements and different. Different levels of laminar flow operating room air cleanliness of their different standards, such as the US Federal Standard 100 standard laminar flow operating room per cubic feet of air, dust number ≥0.5μm, ≤100 particles per liter of air or ≤3.5 teeth. 1000 cubic feet per ≥0.5μm number of dust particles in the air, ≤1000 particles per liter of air or ≤35 pieces. And so on.
       Different levels of laminar flow system, which controls the space environment of the air exchange rate are different, the higher the cleanliness level, the faster replacement rate, and vice versa.
       Special paint laminar flow operating room wall applications with antibacterial stucco, bright, pastel colors and not have to clean water rinse.
Second, laminar flow operating functions and features:
1, operating rooms and low bacterial counts low concentration of anesthetic gas.
2, for comfort air (indoor temperature at 15-25 ℃, the humidity can be adjusted between 50-65%).
3, operating room positive pressure airflow (+ 23-25Pa) to prevent entry of foreign contamination.
4, the operating room, fresh air, in relaxation, comfortable working environment.
5, laminar flow operating room, under normal circumstances without the use of physical or chemical methods for disinfection, saving labor, but also eliminates the bad gas affected.
6, nosocomial infection (especially surgery and burns infection) is greatly reduced.
7. Noise: Due to the use of laminar flow operating room air supply ceiling, the main source of noise is too large for the return air and exhaust design is unreasonable. Fortunately, the operating room volume of 42dB, can no discomfort; in fact, a large source of noise for the equipment and medical equipment, reasonable layout and decor is avoided.
8, laminar flow operating room is expensive, excellent "Moon consumption bucket of gold", unconditional, converting luxury.
Therefore, operating room must be strictly managed, in order to ensure effective sterilization function, to achieve amputation infection route and avoid perioperative surgical infections ultimate goal.