The invention discloses a passive power-assisted flexible bionic tension and compression body
ankle foot
joint prosthesis based on air pressure change. The
prosthesis comprises an
ankle joint part anda foot part, wherein the foot part comprises a foot part supporting piece lower bottom plate, a foot part supporting piece upper top plate, a foot part supporting piece front
assembly, a foot part supporting piece rear
assembly, a foot part upper bearing plate, a foot part front air inlet cavity, a foot part rear
extrusion air cavity, a foot part stress middle
assembly front
air cavity and a footpart stress middle assembly rear
air cavity. In the bionic design of the flexible
prosthesis, the mode of applying the tension and compression body working principle of the
human skeleton to the
prosthesis design better conforms to the natural characteristics of the
human body, the natural
gait of the
human body can be effectively improved, a feasible thought method is provided for the current design of the flexible prosthesis, and the development of the future
prosthesis design is facilitated.