Abstract: A mobile foldable shower mattress includes a main body, an upper waterproof fabric, and a lower waterproof fabric. The main body includes at least two bottom plates, a plurality of side plates, and a plurality of damping hinges. The at least two bottom plates are arranged side by side. The plurality of side plates are located around the at least two bottom plates and hingedly connected to the corresponding bottom plates. An accommodating room is enclosed by the plurality of side plates and the at least two bottom plates. The plurality of damping hinges are each disposed between a corresponding one of the bottom plates and a corresponding one of the side plates.

Abstract: A flow stopper preventing the backflow of urine comprises a urinary catheter connector, a flow stopping valve, and a urinary bag connector. The flow stopping valve is a membrane material. A flow channel runs through the front and rear ends of the flow stopping valve. The flow channel is provided with a front-end inlet and a rear-end outlet. The front-end inlet is in communication with a valve port of the urinary catheter connector. The rear-end outlet is a flat slit. A channel of the urinary bag connector is provided with a front-end port and a rear-end port connected to a tube of a urinary bag. The flow stopping valve is arranged within the channel. Moreover, the rear-end outlet of the flow channel faces the rear-end port of the channel. The flow stopper can prevent the backflow of the urine and prevent a patient from being infected.