Cord transmitted 3D printing prosthetic arm

Abstract

The invention relates to a cord transmitted 3D printing prosthetic arm, and belongs to the technical field of medical equipment. The cord transmitted 3D printing prosthetic arm comprises an upper arm shell, a lower arm shell, a palm shell, elastic lines, traction lines, finger joints and finger front ends, the upper arm shell is provided with cord fixing holes and fixing bandages, and the upper arm shell is movably connected with the lower arm shell through concentric circle screws; the lower arm shell is provided with threading holes and two fixing bandages, and the lower arm shell is movably connected with the palm shell through concentric circle screws; the palm shell is internally provided with five wiring channels, the side face of the palm shell is provided with the thumb joint, and the thumb front end is movably connected to one side of the thumb joint through concentric circle screws; the front end of the palm shell is provided with four finger joints; the lower portion of each finger joint is movably connected with the front end of the corresponding finger through a concentric circle screw. The prosthesis obtained through a 3D printing technology is simple in structure, reliable in performance, convenient to master and use, low in price and capable of being used at home commonly.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a prosthetic which is driven by cables and manufactured by 3D printing technology. Background technique [0002] Physical disabilities will cause great troubles to people's lives. At present, the demand for prosthetic limbs in my life is extensive, but what is embarrassing is that the number and variety of prosthetic limb products in my country are scarce, the performance is single, and they lack timely innovation. There is a large gap between. my country's prosthetic product market is mainly occupied by foreign companies, but imported products are often expensive, and 75% of my country's handicapped people are distributed in vast cities and rural areas. Because most of the amputees are poor people, the penetration rate of artificial limbs is not high. It is estimated that about 70% of the people have not installed artificial limbs; and the upper limb artifici...

AI Technical Summary

Problems solved by technology

Because most of the amputees are poor people, the penetration rate of artificial limbs is not high. It is estimated that about 70% of the people have not installed artificial limbs; and the upper limb artificial limbs currently on the market mainly include: decorative artificial hands, cable-controlled artificial limbs Hands and myoelectric artificial hands. Although the decorative artificial hand is more beautiful, it has no finger joints, no grip perception, no grip control, no practicality, and is expensive; the cable-controlled artificial hand can only be opened passively. Closing requires a certain amount of training; the myoelectric artificial hand is difficult to control the grip strength, and it can be opened and closed actively, which requires a certain amount of practice, but the price is between 30,000 and 100,000 yuan; these upper limb prosthetics have different problems

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