Anesthesia is an auxiliary means for doctors to use some anesthetic drugs or special methods to make a part of the patient's body, or the whole body, temporarily lose all sensation, so as to help doctors to carry out surgical operations smoothly. Anesthesia is simply a method of quickly and effectively controlling the patient's pain. By temporarily suppressing the painful part and the state of consciousness, the pain suffered by the patient during the operation is relieved, which is convenient for doctors to perform surgery or diagnostic examinations. Through anesthesia, patients can reduce their pain, create a safe, stable and comfortable medical environment, and keep patients in a stable state, so as to effectively cooperate with doctors to carry out related surgical treatments and improve the quality, efficiency and level of the overall operation.

With the continuous improvement of medical technology, the scope of clinical transfusion and component transfusion treatment is expanding, and people pay more attention to blood quality, transfusion efficacy and transfusion safety. Conventional transfusion mode is no longer suitable for clinical requirements. At present, various common blood and blood components contain a large number of leukocytes and inflammatory cytokines, which can often cause non-hemolytic fever and allogeneic immune reactions. The use of disposable leukocyte filters to remove leukocytes can reduce and avoid graft-versus-host disease and viral infection caused by transfusion, prevent or eliminate transfusion-related immunosuppression syndrome, reduce transfusion-related thrombocytopenia, prolong organ transplant rejection, and enhance the treatment effect of malignant tumors. The removal principle is that when leukocytes pass through the filter disc, they are removed by mechanical blocking and adsorption, while re

The peritoneal fluid is passively drained into the drainage bag through the peritoneal drainage tube mainly by siphoning. Its mechanism of action is that the fluid in the cavity at a higher position in the body flows into the drainage bag at a lower position through the drainage tube; the condition is that the pressure in the body cavity is equal to the pressure in the drainage bag, and the tube opening in the drainage tube cannot be exposed to the liquid surface.

A disposable oropharyngeal airway is a medical device commonly used in respiratory, anesthesia and emergency treatment. Its main function is to ensure that the patient's airway is unobstructed and maintain the stability of the airway for effective ventilation and oxygenation.

With the advancement of science and technology and the development of laboratory medicine, rapid blood sugar meters are currently one of the most widely used instruments for self-monitoring in hospitals and families at all levels because of their small size, easy to carry, simple operation, and quick report generation.