In patients on long-term ventilators, the tube replacement time was

7 days. According to the query of the nursing process of patients using ventilators showed that for patients using mechanical ventilation for a long time, the ventilator tube must be replaced once a week. In modern clinical medicine, the ventilator, as an effective means that can artificially replace the function of autonomous ventilation, has been commonly used in respiratory failure due to various causes, anesthesia and respiratory management during major surgery, respiratory support therapy and emergency resuscitation, and occupies a very important position in the field of modern medicine. The ventilator is a medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong the patient's life.