Thoracic stabilizer

The rib cage stabilizer for front battlements atrophy control containing a pair of transverse direction base materials which add the platform supporting a patient and the power which contacts the each side of a patient's battlements and controls atrophy of battlements is provided. The power added from a transverse direction base material changes with the power which a patient applies to a platform. A rib cage stabilizer has the retraction meter which measures battlements atrophy. In the one example, a rib cage stabilizer contains the controller which uses the algorithm to which the power added under a closed loop form at battlements is changed based on the battlements atrophy measured value in retraction meter. In the one example, a rib cage stabilizer contains the motor to which a transverse direction base material is moved. In a certain example, a rib cage stabilizer contains a fluid pressure system and the transverse direction base material containing the fluid restoration die member which can be expanded.