Cleaning process of surgical instruments: 1. Preparation: Scrubbing tools, multi-enzyme cleaner, rust remover, soft water or pure water. Soak the instruments with dried blood with multienzyme 1. 1. The staff took standard precautions to protect themselves; 1.2. Check that the gloves are not perforated, and the sorting table is equipped with quick hand disinfectant; 1.3. Prepare containers such as sterilizer, ultrasonic cleaner, derusting and enzyme soaking; 1.4. Assess the degree of blood pollution: select dry instruments and soak them in multienzyme solution; 2. Washing: First, clean the obvious blood and stains on the instrument and brush it underwater as much as possible. 2. 1. Instrument brushing method: hold several single-sided bracelets of the same dental instrument by hand, fully open the shaft joints (the number depends on the size of the cleaner's hand), and brush underwater with a soft brush; 2.2. Painting requirements: Pay attention to the painting of the recess, the bottom of the recess and the bottom switch, and pay attention to the splash of aerosol and water droplets when painting; 2.3. Scrubbing quality evaluation: the concave position of the inclined head, the bottom of the concave position and the bottom switch are clean with naked eyes, without blood, stains and rust; 3. Rinse: Rinse repeatedly with running water 3. 1. Flushing requirements: brush repeatedly with soft brush under normal water, and rinse repeatedly with running water; 3.2. Evaluation of washing quality: the concave position of the inclined head, the bottom of the concave position and the bottom switch are clean with naked eyes, and there is no detergent and rust remover residue on the instrument. 4. Cleaning, disinfection, lubrication and drying: put the instrument into the cleaning basket, select the correct cleaning procedure, and the cleaning sterilizer will automatically complete the above procedures. 4. 1. Placement requirements: fully open the joints at the tilt head position; 4.2. Operation observation: Observe the normal operation of water flow flushing and cleaning procedures; 5. uninstall 5. 1. Clean quality evaluation: when unloading, check and visually inspect the equipment with clean hands, and there is no visible dirt, rust and water droplets. The equipment items are clean and dry and put on the equipment packaging table; 5.2. Equipment with unqualified cleaning quality shall be returned to the decontamination area in time by the transfer window for reprocessing.