Gastrointestinal decompression device for digestive nursing and use method

The invention discloses a gastrointestinal decompression device for digestive nursing and a use method, which relate to the technical field of medical nursing, and solve the problems that a currently used decompression device mainly removes gastric contents by controlling air pressure, the discharge efficiency is low, and a power input structure for rapidly and manually controlling the collection bag to be developed and generating negative pressure does not exist. The invention discloses a gastrointestinal decompression device for digestive nursing and a use method. The device comprises a center cylinder; a three-section type through hole is formed in the center cylinder, and a sliding rod is arranged in the rear end of the three-section type through hole in a sliding mode; a sliding sleeve is slidably arranged on the outer side of the center cylinder, a main threaded cylinder and a sliding rod are arranged, a power input structure for rapidly and manually controlling the collection bag to be unfolded and gen