A breathing assistance apparatus and hyper / hypo oxygen system

Abstract

The application provides a breathing assisting device and a high and low oxygen system. The breathing assisting device comprises a first air pipe, a first channel for air flow is formed in the first air pipe, and the first air pipe further comprises a first end, a second end and a third end which are communicated with the first channel respectively; the first end is used for being connected with a mask structure for providing air flow; a first valve plate is arranged in the second end in a sealed mode, a guide structure is arranged on the first valve plate, the guide structure is unidirectionally guided when the first set pressure of the air flow is borne; a second air pipe is butted against the third end, and a second channel communicated with the first channel is formed in the second air pipe; a second valve plate is arranged in the second channel in a sealed mode, the second valve plate is deformed when the second set pressure of the air flow is borne, and a gap is formed between the edge of the deformed second valve plate and the corresponding inner side wall of the second channel. The feeling of suffocation and impact of a trainer in the training process can be reduced, so that the trainer can maintain continuous rehabilitation training.

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