The physical sterilization method known as cold sterilization is ionizing radiation sterilization.
Ionizing radiation sterilization method, also known as cold sterilization. It is suitable for sterilizing items that are not heat-resistant, such as rubber, plastics, polymers (disposable syringes, transfusion transfusion devices, etc.), compact medical instruments, biomedical products, birth control devices and metals.
Physical disinfection and sterilization method
1, thermal disinfection and sterilization - the use of medical, education network original thermal physical effect, so that the microbial proteins and enzymes denaturation coagulation, to achieve the purpose of disinfection or sterilization.
(1) combustion method: commonly used in non-reserved value of the goods in an emergency or unconditional use of other methods of disinfection can also be used.
(2) dry baking method: the use of special ovens, electrified heating sterilization, reliable results. Commonly used in oil, powder, glassware, metal and ceramic products such as sterilization.
(3) boiling method: can be used for enamel, metal, glass, rubber items that are not afraid of moisture, high temperature. This method can not be used for sterilization of surgical instruments. Rubber items are removed promptly after sterilization to avoid softening. Sharp instruments are not suitable for this method, so as not to become blunt by heat.
(4) pressure steam sterilization: a hospital is the most common, the most reliable effect of the preferred method of sterilization. Applicable to high temperature, high pressure and moisture-resistant items, the pressure steam sterilizer commonly used in hospitals have portable pressure steam sterilizer, horizontal pressure steam sterilizer and pre-vacuum pressure steam sterilizer.
Determination of the effect of pressure steam sterilization, can be used to leave a point thermometer, chemical indicator, chemical indicator tape, biological monitoring method, biological monitoring method is the most reliable monitoring method.
2, light disinfection (radiation sterilization) - the main use of ultraviolet light, ozone and high-energy rays, so that the bacterial protein photolysis, denaturation, bacterial body of nucleic acids, enzymes are destroyed and cause microbial death.
(1) sunlight exposure method: commonly used in clothing, books, mattresses, blankets and other disinfection.
(2) ultraviolet lamp disinfection method: commonly used in the air and the surface of the goods disinfection.
(3) ozone sterilization lamp disinfection method: the use of ozone's powerful oxidation and sterilization.
(4) ionizing radiation sterilization: also known as cold sterilization. The application of rays or high-energy electron beams to penetrate the items and kill the microorganisms in them.
3, microwave sterilization method - is a medical education network original ultra-high frequency electromagnetic waves, can make the polar molecules in the article high-speed movement and cause each other friction, collision, so that the temperature rises rapidly to achieve the purpose of sterilization. Mostly used for food and tableware processing, laboratory documents and tickets disinfection, medical drugs and heat-resistant non-metallic materials, disinfection and sterilization of instruments. Microwave can not be used for the sterilization of metal objects.
4, biological purification method - the use of biological clean technology, with different airflow through the three air filters to remove the dust in the air, to achieve the purpose of clean air. Mainly used in burn wards or operating rooms and so on.