Abstract: The disclosure relates to a vertebral body implant including a flexible main body and at least one pedicle screw joint. The flexible main body is an integrally formed single piece having at least one joint-accommodating hole and at least one opening connected to the at least one joint-accommodating hole. The pedicle screw joint is an integrally formed single piece movably accommodated in the at least one joint-accommodating hole.

Abstract: To provide a bioabsorbable stent including: a first tubular unit containing a plurality of cells coupled to each other, each of the cells formed from substantially linear parts and a substantially circular arc part and having a substantially U shape which opens to one end in the axial direction of the stent; and a second tubular unit having the same shape as that of the first tubular unit, the second tubular unit containing a plurality of cells each of which has a substantially U shape which opens to a direction opposite to the opening direction of the opposing first cell. The first tubular unit and the second tubular unit are alternately arranged in sequence to surround a central axis of the stent. Coupling members couple substantially linear parts in some of the opposing cells in the respective neighboring tubular units.

Abstract: A lower limb exoskeleton system includes a back frame, hip joint movement mechanisms, telescopic thigh bars, knee joint movement mechanisms, shank bars, foot jump-down cushioning mechanisms, a waist binding frame, upper leg binding frames and lower leg binding frames. Two protruding ends of the back frame are connected with a top end of each of the telescopic thigh bars respectively via the hip joint movement mechanisms, bottom ends of the telescopic thigh bars are connected with a top end of the corresponding shank bars respectively via the knee joint movement mechanisms, and bottom ends of the shank bars are connected with the foot jump-down cushioning mechanisms. The waist binding frame is arranged on an inner side of a horizontal part of the back frame, and the upper leg binding frames and the lower leg binding frames are arranged on the telescopic thigh bars and the shank bars respectively.