I designed in 1937 a hyperextension table for the compression fracture of the spine after Böhler's method. This table was widely used in Japan, but has some disadvantages. In this year I have improved some disadvantages. This table is a type of hammock, which streched between two rectangular frames and the hammock, which streched between two rectangular frames and the hammock can be tightend or loosend at will. Foot are suspended by the gear and pulley. Details are showed in Figures 1-4.