Negative Pressure Drainage Device Is A Commonly Used Drainage Device in Clinic

Negative pressure drainage device is a commonly used drainage device in clinical practice, such as for gastrointestinal decompression. In gastrointestinal decompression, the gastric tube is inserted into the gastric cavity or intestinal tract from the oral cavity or nasal cavity, the negative pressure drainer is connected with the gastric tube, and the gastric juice or intestinal juice is led out of the patient's body under the effect of negative pressure and siphon principle. This method can reduce the pressure in the gastrointestinal tract, reduce the degree of gastrointestinal expansion, improve the blood circulation of the gastrointestinal wall, and promote the healing and functional recovery of the gastric wound. This method has a wide scope of application. It is not only used for acute gastric dilatation, intestinal obstruction, repair or partial resection of gastrointestinal perforation, as well as after biliary or pancreatic surgery, but also for daily care of stroke patients or post-traumatic care caused by various reasons. Gastrointestinal decompression is carried out under the condition of retaining the gastric tube to reduce the risk of stress ulcer.

The existing negative pressure drainage device only has the function of collecting gastric juice and gas, which sucks gastric juice and gas out of the patient's stomach cavity and collects them in the chamber of the negative pressure drainage device. When medical staff use negative pressure drainage device in clinical nursing and treatment operations, they are easy to contact gastric juice and gastric cavity gas, and there is an occupational exposure risk of Helicobacter pylori. Epidemiological investigation shows that the infection rate of Helicobacter pylori in China is about 40% ‑ 60%. Helicobacter pylori infection can lead to chronic gastritis, functional dyspepsia, peptic ulcer, gastric cancer, malt lymphoma and other systemic diseases. In addition, the disposable negative pressure drainage device is also used to store gastric juice and gas, which will be treated as medical waste after the drainage operation is completed. However, the contents of the drainage device may also be scattered and the environment may be polluted during the transportation of the disposable negative pressure drainage device.