The oxygen pillow needs a plastic tube in the middle of the oxygen mask. Oxygen inhalation is often used to treat patients with dyspnea. Oxygen bag is an important rescue material for patients with hypoxia during transportation. The traditional oxygen bag only has a rubber catheter and a sliding sealing clip to achieve the effect of connecting and sealing the oxygen inhalation catheter. However, plastic catheter and oxygen inhalation catheter are different models, which can not be closely connected, so it is easy to cause pipeline slippage during transportation and aggravate patients' hypoxia. At the same time, the sliding sealing clip achieves the sealing effect, which increases the time for preparing materials. By designing the connector, different nozzles can be selected according to different types of oxygen inhalation catheters, thus improving the tightness of catheter connection. At the same time, the soft silica gel membrane increases the sealing performance, ensures the safety of patients during transportation and improves the comfort of patients.