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Stretcher is often applied to the rescue condition. The rescue terrain and environment ,however, tend to be rather complicated,
which makes the phenomenon that it’s easier for a stretcher to turn on one side or skid, and thus cause secondary damage. In
order to address this problem, the stretcher is designed, which makes it possible for the handles to connect the four pneumatic
stretcher bar. Therefore, when passing the local-shaped or undulating ground with a small slope the stretcher body can always
maintain horizontal, thereby reduce the damage to the injured, and protect the victims better.
Dalian Minzu University