多种工作模式的踝关节活动器的研制

Development of multimodal ankle joint movement device

各种原因导致患者长期卧床后将引起严重的并发症:踝关节跖屈畸形。新型踝关节活动器以大扭矩、超低速电机为动力,结合定时控制电路,具有多种工作模式,能使踝关节在被动的情况下背伸20～30°,跖屈40～50°,并能根据患者的个体情况设置不同的运用角度与时间,且能根据需要进行缓慢、连续、往返式运动,这对那些踝关节不能或较难进行主动活动的病人防止踝关节跖屈畸形、踝关节僵硬的及下肢肌肉萎缩有良好的作用。

Plantaris bend malformation of ankle joint, a serious epiphenomenon will occurs when patients lie on bed for a long time. A new type of ankle joint movement device is studied. Powered by electric motor with giant torque and super low velocity and controlled by timing controlling circuit, this device enable the ankle joint a 20°～30° back stretch and 40°～50° plantaris bend. Furthermore, it can set different moving angle and time according to individual conditions and can perform slow, continuous and reciprocating motion for different actual need. Patients whose ankle joints are unable or difficult to move actively can benefit from this device in preventing plantaris bend malformation of ankle joint, ankle joint stiffness and muscle atrophy of lower limb.