The so-called negative pressure ward refers to a special device, the air pressure inside the ward is lower than the air pressure outside the ward, in terms of air circulation, only the outside of the fresh air can flow into the ward, the ward is contaminated by the patient's air will not be leaked out, but through the special channel in a timely manner discharged to a fixed place.
The function of negative pressure isolation ward for infectious diseases has two main points:
One is to isolate the pathogenic microorganisms by using the principle of negative pressure, and at the same time, the air inside the room contaminated by the patient will be discharged after special treatment, and will not pollute the environment.
The second is through the ventilation and reasonable airflow organization, dilute the concentration of pathogenic microorganisms in the ward, and make the medical staff in the favorable wind section, to protect the medical staff work safety. Negative pressure isolation ward for infectious diseases is generally composed of three parts: sick room, buffer room and bathroom.
Expanded Information:
Ward Facilities:
The so-called negative-pressure wards refer to the special devices, the air pressure inside the ward is lower than that outside the ward, so that in terms of the circulation of air, only the fresh air from the outside can flow into the ward. The air that has been contaminated by the patients in the ward will not leak out, but will be discharged to a fixed place in time through a special channel.
This way the place outside the ward will not be contaminated, thus reducing the chance of medical staff being infected by a large number of such wards are best suited to the rescue of patients with respiratory infectious diseases like SARS.
Negative pressure isolation ward for infectious diseases using a set of air purification device, two sets of exhaust air purification device. Air supply purification device from the air supply cabinet and primary, medium and high efficiency filtration devices, filtration efficiency of 99.99%. (particle size ≥ 0.3μm). Exhaust air purification device consists of exhaust cabinets and coarse-effect, medium-effect filtration device, filtration efficiency is 99.99% (particle size ≥ 0.3μm).
Baidu Encyclopedia - Negative Pressure Ward