Device and method for detecting performance of neck bush of artificial limb

Abstract

The invention discloses a device and method for detecting the performance of a neck bush of an artificial limb. The device comprises a rack, a stump model is arranged in the middle of the upper surface of the rack, a clamping assembly is arranged above the stump model, lifting rods are arranged below the two ends of the clamping assembly, a bottom plate located at the lower part of the rack is arranged at the lower ends of the lifting rods, and a lifting driving air cylinder is arranged below the bottom plate; the stump model comprises a stump body, a group of piezoelectric sensors are embedded in the outer wall of the stump body, and the stump body is coated with a simulation skin layer. The device further comprises a controller, and the controller is connected with the piezoelectric sensor and the lifting driving air cylinder. Through cooperation of the clamping assembly and the lifting driving air cylinder, the wearing and taking-off actions of the artificial limb neck bush on the stump model are completed. The controller compares data monitored in the wearing and taking-off process with a set threshold value, and then detection of the performance of the neck bush of the artificial limb is completed. The device has the characteristic that the performance of the neck bush of the artificial limb can be comprehensively detected.

Description

technical field [0001] The invention relates to a detection device for an inner liner of a prosthesis, in particular to a performance detection device and method for an inner liner of a prosthesis. Background technique [0002] The inner liner of the prosthesis is the link between the residual limb and the socket of the prosthetic limb, and plays a vital role in the prosthetic limb. It has the functions of suspending the prosthetic limb, containing the residual limb, and transmitting motion and force. The realization of these functional effects will stimulate the skin and muscle tissue of the residual limb, if not handled properly, it will cause discomfort or even limb damage to the amputee. [0003] The inner liner of the prosthesis is generally made of elastic materials such as silica gel. At present, there are one-piece molded ones and ultrasonic welded ones on the market. Different processes will have a great impact on the mechanical properties of the inner liner of the ...

AI Technical Summary

Problems solved by technology

The realization of these functions will stimulate the skin and muscle tissue of the residual limb. If it is not handled properly, it will cause discomfort or even limb damage to the amputee.

[0003] The inner liner of the prosthesis is generally made of elastic materials such as silica gel. At present, there are one-piece molded ones and ultrasonic welded ones on the market. Different processes will have a great impact on the mechanical properties of the inner liner of the prosthesis. The lining will obviously have uneven material elasticity, etc., which makes the quality of the current prosthetic lining products on the market uneven. The existing quality detection methods for the prosthetic lining are only elastic of the material itself. And strength testing (simple tensile testing), there is no way to evaluate the related performance that can directly and comprehensively reflect the comfort and service life

Therefore, the existing technology has the problem of being unable to fully detect the performance of the inner liner of the prosthesis

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