Joint movement assisting device and method capable of adapting to different leg thicknesses for orthopedics department

The invention discloses a joint movement assisting device and method capable of adapting to different leg thicknesses for the orthopedics department, belongs to the technical field of joint movement assisting devices.The problems that a leg movement device is low in fitting degree and heavy in load are solved, and the device comprises a knee joint upper binding assembly, a knee joint lower binding assembly, an instep binding assembly and a traction assembly; a knee joint lower binding assembly and an instep binding assembly are sequentially arranged below the knee joint upper binding assembly, detachable traction assemblies are fixed to the knee joint upper binding assembly, the knee joint lower binding assembly and the instep binding assembly, and the traction assemblies are connected through ferrules. The leg and the auxiliary device are connected in the mode that the leg is bound through the binding band, the connection mode can be suitable for legs of different leg types and different thickness degrees, t