Artificial limb

Abstract

The invention discloses an artificial limb which comprises an artificial foot, an artificial leg, a first movable rod, a second movable rod, an artificial knee and a telescopic cylinder. A strut obliquely extending backwards is arranged at the upper end of the artificial leg; the lower end of the first movable rod is in pin joint with the upper end of the artificial leg; the lower end of the second movable rod is in pin joint with the upper end of the strut; the upper end of the first movable rod and the upper end of the second movable rod are in pin joint with two positions, in the front-back direction, of the artificial knee respectively, and the first movable rod is located in front of the second movable rod. The telescopic cylinder comprises a cylinder body and a piston rod, the lower end of the cylinder body is in pin joint with the lower end of the first movable rod, the piston rod stretches out of the upper end of the cylinder body and is in coaxial pin joint with the second movable rod, springs are arranged in an upper chamber and a lower chamber divided by a piston in the cylinder body, the two springs abut against the piston, and a damping hole communicated with the upper chamber and the lower chamber is formed in the piston. The stability of the disabled to walk through the artificial limb is improved. Compared with a torsional spring applied to an artificial limb in the prior art, the telescopic cylinder can guarantee the stability of the artificial limb better.

Description

technical field [0001] The invention relates to a prosthesis, in particular to a prosthesis applied to disabled persons missing below the thigh. Background technique [0002] For disabled people who are missing below the thighs, artificial limbs can be installed to allow disabled people to stand and walk again. In the prior art, the prosthesis applied to disabled persons missing below the thigh usually includes a prosthetic foot, prosthetic leg (referring to the lower leg) and prosthetic knee. The connection relationship of the above-mentioned parts of the prosthesis in the prior art is as follows: [0003] The artificial foot is pivotally connected to the artificial leg, and the artificial knee is pivotally connected to the artificial leg; two-way torsion springs are arranged between the artificial foot and the artificial leg, and between the artificial knee and the artificial leg, and by adjusting the two-way torsion spring, the artificial foot, artificial leg And the fr...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned artificial limbs in the prior art do not fully conform to the posture, power and motion of normal people when they walk.

For example, there are two pivot joints in the above-mentioned prosthesis, and the two pivot joints make the walking not stable enough.

Moreover, using torsion springs to provide damping and power for prosthetics has certain risks. For example, when the torsion spring is suddenly broken, a large angle of rotation will occur between the prosthetic foot, prosthetic leg, and prosthetic knee, causing the disabled to suddenly fall

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