Parallel type bionic knee-hip joint testing machine

Abstract

The invention discloses a parallel type bionic knee-hip joint testing machine comprising a hip joint test apparatus and a knee joint test apparatus. The hip joint test apparatus is arranged on the knee joint test apparatus and the two apparatuses share a same moving platform. According to the invention, on the basis of cooperation of mechanisms, moving situations and moving environments of the knee joint and hip joint of the human body can be simulated actually. Moreover, the structure is compact, the installation becomes convenient, and the testing effect is good.

Description

technical field [0001] The invention discloses a parallel bionic knee-hip joint testing machine, and relates to a parallel bionic knee-hip joint testing machine in a hydraulic system loading and parallel driving mode. The friction and wear test of the artificial knee joint material adopts a parallel driving method, which belongs to the field of instrument science or bionic robot. Background technique [0002] An artificial joint is an implanted prosthesis that simulates a human joint and is used to replace a damaged joint and restore its normal function. The most widely used are the hip and knee joints. Wear and tear of artificial joints is an important clinical problem. In recent years, scholars at home and abroad have successively developed and researched the simulation test devices for hip joints and knee joints. At present, the successfully developed hip joint experimental device adopts pin-on-disk wear test, ring-disk wear test, four-ball wear test and block ring wea...

AI Technical Summary

Problems solved by technology

Ball testing machines such as the disc and surface contact testing machines used by Wang et al. use vertical axial rotation instead of reciprocating motion; prosthetic force and motion direct control testing machines are mainly foreign, and Walker and Hsish et al. found that , the transitional assembly of the tibial ankle fossa and the femoral ankle fossa is the most reasonable configuration form; the testing machine developed by Pual et al. uses pneumatic four-bar linkages to realize the anteroposterior displacement of the femoral prosthesis, and the research direction turns to the direction of fine movement, but it still can only imitate some Sports; simulating knee joint muscle force group testing machine is a kind of muscle group that uses motors, cylinders or hydraulic cylinders to simulate the muscle groups related to the human lower limbs and knee joints, trying to more accurately simulate the real stress and movement of the knee joint. state

Images