Industrial robot based knee-joint prosthesis testing device and testing methods

Abstract

The invention belongs to the technical field of prosthesis testing, and specifically relates to an industrial robot based knee-joint prosthesis testing device and testing methods. The device includesan industrial robot, a Bionic thigh and a ground reaction force module. The device can realize the prosthesis testing under environments of horizontally walking at different speeds, going up and downslopes and going up and down stairs by simulating the movement of the residual limbs of patients with knee amputation within a gait cycle; the device can adjust the ground reaction force on the foot of prosthesis, so that the inputting of the ground reaction force during prosthesis testing can be more accurate, and accurate testing environments can be provided for the intelligent keen joints assembled on an interface; and as the industrial robot is used, a testing system can be more convenient and flexible in using and simpler in structure.

Description

technical field [0001] The invention belongs to the technical field of prosthesis testing, and in particular relates to a knee joint prosthetic testing device and testing method based on an industrial robot. Background technique [0002] At present, smart prosthetics that can perform functions such as going down stairs, going up and down hills, sitting up and walking, etc. are developing rapidly, but there are very few devices for testing their performance. However, the design and manufacture of intelligent prostheses is different from traditional passive mechanical prostheses. They are often complex electromechanical devices integrating machinery, electricity, or machinery, electricity, and hydraulics. Traditional testing methods are difficult to test intelligent prostheses. [0003] First, only a limited number of subjects can be recruited for the test of a prosthesis, and the working conditions that can be tested are limited; second, in addition to the development of the ...

AI Technical Summary

Problems solved by technology

[0002] At present, smart prosthetics that can perform functions such as going down stairs, going up and down hills, sitting up and walking, etc. are developing rapidly, but there are very few devices for testing their performance. The method of testing artificial limbs, and the design and manufacture of intelligent artificial limbs are different from traditional passive mechanical artificial limbs. They are often complex electromechanical devices integrating machinery, electricity, or machinery, electricity, and hydraulics. Traditional testing methods are difficult to test intelligent artificial limbs.

[0003] First, only a limited number of subjects can be recruited for the test of a prosthesis, and the working conditions that can be tested are limited; second, in addition to the development of the mechanical structure, the development of the control algorithm is more important in the development of intelligent prostheses. Due to imperfect product functions or control algorithms, it is easy to bring danger to the test subjects; again, the test subjects will soon enter a state of fatigue during the test, and it is difficult to ensure that the prosthesis always has the same input when working, thereby reducing the test data. accuracy; finally, traditional prosthetic testing requires mature products to carry out testing, and sockets must be specially made for the subjects. The testing cycle is long. If there is an inappropriate part in the design, extensive rework is required

[0004] At present, there are very few devices used for the development and performance testing of intelligent knee prostheses, and none of them have the function of ground reaction force control. They cannot test environments such as uphill and downhill, and it is difficult to truly simulate the walking gait of normal people. Therefore, there is an urgent need A prosthetic knee joint testing device capable of simulating normal human walking gait

Images