The operating principle of aseptic technique means that the best way to control pathogenic microorganisms and avoid infection in nursing is aseptic technique. Nurses need to apply the theory and practice of aseptic technology to clinical nursing to reduce the incidence of patient infection and improve the quality of nursing service. Aseptic technology refers to the operation technology and management method to prevent all microorganisms from invading the human body or spreading to others, and to keep sterile articles and sterile areas from being polluted during medical care operation.
Aseptic technology refers to the operation technology and management method to prevent all microorganisms from invading the body and keep sterile articles and sterile areas from being polluted during the implementation of medical care technology. Sterile articles are called sterile articles after being sterilized by physical or chemical methods. Sterile area is an area that has been sterilized but not polluted, which is called sterile area. Non-sterile articles or areas that are not sterilized or contaminated after sterilization are called non-sterile articles or areas.
Working principle:
1, clean environment.
Half an hour before aseptic technology operation, it is necessary to stop sweeping the ground to avoid unnecessary crowd flow, reduce people's walking and reduce dust in indoor air. Prevent dust from flying. The treatment room is disinfected by ultraviolet radiation once a day for 20 to 30 minutes each time, and the disinfection time can be appropriately extended.
2. Sterile operation.
Dress neatly in clothes and hats. Cover all your hair with a hat, cover your mouth and nose with a mask, trim your nails and wash your hands. Wear sterile clothes and take sterile gloves with you if necessary.
3. Project management.
Sterile items and non-sterile items should be placed separately. Sterile articles should not be exposed to air, but must be stored in sterile bags or containers. Once used, sterile items must be sterilized before use. Articles taken out of sterile containers, although never used, should not be put back into sterile containers.
4. Sterile articles.
Sterile articles must be stored in sterile bags or containers. Sterile bags shall be marked with sterile name, sterilization date and sterilization date, and shall be valid for one week. They should be discharged in chronological order for easy access and kept in a fixed place. Sterile bags can be stored for 7 days without contamination, and should be sterilized again after expiration. Sterile articles should be sterilized again when they are wet once they are used or expired.
5. Take sterile materials.
The operator is 20 cm away from the sterile area. When taking sterile articles, you must use sterile holding forceps (tweezers). He should not touch sterile articles or cross sterile areas, and his arms should be kept above the waist. Sterile articles should not be exposed for too long after being taken out. If it is not used, it should not be put back into sterile bags or containers. Those suspected of pollution shall not be used. Unauthenticated items should not touch sterile materials or pass through sterile areas.
6. Sterile operation.
If it is suspected that instruments and articles are contaminated or have been contaminated, they should not be used and should be replaced or re-sterilized. One set of sterile articles for one person can only be used by one patient to avoid cross infection.