YHZ-V model computer-controlled four-dimensional spatial lumbar vertebra traction bed has functions of upper regulation traction, right and left rotation traction and longitudinal traction, right and left swing traction by imitating tail swing of goldish. The bidirectional inversel traction gathers the four actions of leaning-fronteard, leaning-backward, right-and-left rotation and right-and-left swing into one unity to overcome the shortages of single function.

Four-dimensional spational spational traction function.