The Biosafety Cabinet is a safety device that provides safety protection for operators, samples and the environment and is the most basic safety protection in a protective barrier in laboratory biosafety. With the development of science and technology and the improvement of people's awareness of biosafety, the application of biological safety cabinets in laboratory, hospital and research units is becoming more and more extensive, but it is considered to be the simplest exhaust equipment in the concept. , Use and other aspects of the existence of many problems and errors, to the biological security protection, to avoid laboratory infection to bring great risks.
The outbreak of SARS and highly pathogenic avian influenza in 2003, especially in 2003 - 2004, occurred in SARS-CoV infection, which attracted the attention of Chinese government and the majority of scientific workers.
At present, China's biosafety situation is grim,Biosafety Cabinet we must take measures to reverse the situation, the following biological safety cabinet is currently the relevant problems, errors in a detailed analysis, cited as a lesson.
Medical units, biosecurity, indifference, hospital clinical clinics, laboratories, laboratories and other patients receiving blood, mucus and various specimens may contain a variety of pathogenic factors such as hepatitis virus, AIDS virus and other known and Unknown pathogens, posing a great threat to the staff.
Many clinical laboratory personnel did not take any protective measures, or take measures not in place, for example, most of the current laboratory staff only wear disposable latex gloves, even wearing a mask is a non-woven mask; with a clean bench instead of biological safety cabinets; The staff of the biological safety cabinet selection, operation and other lack of knowledge; biological safety cabinet installation, exhaust installation there are many problems; to carry out scientific research work lack of risk assessment and so on.
Laboratory foreign scholars Pike 3921 cases of laboratory-related infections were found, unexplained laboratory infection accounted for only 18%, unexplained infection accounted for 82%. After recent studies, 65% of the unexplained infections were due to the formation of infectious aerosols with pathogenic microorganisms that spread with air, and laboratory workers were inhaled with contaminated air. In the laboratory, many operations can produce aerosols, some 239 kinds of operations were tested, of which 207 kinds of operations can produce aerosols, accounting for 86.6%. In the current laboratory, such as stirring, oscillation, impact,Biosafety Cabinet centrifugation, ultrasonic crushing, vaccination and so can produce aerosols, laboratory microbial aerosol production, most of them are unknowingly formed.
Biosafety Cabinets are biosafety protection isolators for microbiology, biomedical, biosafety laboratories and other laboratories. It uses advanced air purification technology and negative pressure box design, to achieve the protection of the environment, personnel and samples, can prevent the harmful floating particles, aerosol diffusion; the operator, samples and samples between the cross infection and the environment Safety protection, is the laboratory biosafety protection barrier in the most basic security equipment. The use of bracket structure, bracket and box can be separated, easy handling and in place.
Functional characteristics of biological safety cabinets
1 air curtain isolation design to prevent internal and external cross-contamination, air flow 70% outside the row of 30% of the cycle, negative pressure vertical flow.
2 up and down the glass door, can be arbitrarily positioned, easy to operate, and can be completely closed for sterilization, positioning height limit alarm.
3 work area power output socket, equipped with waterproof socket and sewage interface for the operator to provide great convenience
4 exhaust with a dedicated filter to control the discharge of pollution.
5 working environment using high-quality 304 stainless steel, smooth, seamless, no dead ends, can be easily and completely disinfected to prevent corrosion of etchants and disinfectants.
6 with LED LCD panel control.
7 equipped with high efficiency filter failure alarm function.
8 working area airflow alienation alarm.
9.10 ° tilt angle, in line with the human design concept.