Carbon fiber energy-storing pseudarthrosis artificial limb simulating functions of intertarsal joint

Abstract

The invention relates to a carbon fiber energy-storing pseudarthrosis artificial limb simulating functions of an intertarsal joint. The artificial limb comprises an S-shaped upper plate, a lower plate and a connecting structure and is characterized by also comprising a heel shrapnel and a trapezoidal groove structure, wherein the upper end of the trapezoidal groove structure is horizontal and is fixedly connected with the connecting structure; the lower end of the trapezoidal groove structure is inclined for 30 degrees and is fixedly connected with the heel shrapnel; the small groove opening of the trapezoidal groove structure is backward; the big groove opening of the trapezoidal groove structure is forward; and the S-shaped upper plate passes through the groove openings and is connected with the connecting structure. An upper bent part of the S-shaped upper plate is combined with the trapezoidal groove structure, so the transmission force and the jogging function of the intertarsal joint are tactfully simulated; and a lower bent part of the S-shaped upper plate and a toe part of a lower plate are combined into a unique structure, so the dorsiflexion of a metatarsophalangeal joint can be simulated. An opening of the heel shrapnel is downward and the lower part of the heel shrapnel is connected with the lower plate. The artificial limb has the characteristics of high strength, light weight, high elasticity, stability in standing, graceful travelling tread and the like.

Description

technical field [0001] The invention relates to a prosthesis, in particular to a carbon fiber energy storage pseudo-joint prosthetic foot which simulates the joint function between tarsal bones. Background technique [0002] Since the weight of the prosthesis has a direct impact on the energy consumed by the movement of the lower limb amputee patient, it will affect the effect of the patient wearing the prosthesis. Therefore, in the process of designing and manufacturing prosthetic parts, it is necessary to fully consider the functions required by the patient. Whenever possible, choose lower body accessories that are lightweight and reduce physical exertion. As an important component of the lower limb prosthesis, the main function of the prosthetic foot is to support the body weight and compensate the triceps and flexors of the calf during exercise to maintain the normal walking posture of the body. For the lower limb amputee, the weight and function of the prosthetic foot...

AI Technical Summary

Problems solved by technology

[0003] At present, the internal skeleton of the prosthetic foot is generally made of wood, rubber, etc., and a few use high-strength, light-weight carbon fiber, but the structural design is not very ideal, and rarely involves the simulation of important joints of the foot other than the ankle joint. It still feels uncomfortable for the wearer to walk

Although some advanced carbon fiber products have been introduced abroad, they are expensive and not suitable for the consumption of amputees, and the structure still needs to be improved.

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