Radiation therapy fixing device of neck portion

The utility model provides a radiation therapy fixing device of neck portion, bottom plate are inside hollow bottom plate, and the pressure button passes the edge of face guard and the top surface of bottom plate in proper order, be provided with a plurality of wedges in the bottom plate, every wedge all level is placed on the bottom surface of bottom plate, not every wedge one -to -one ground is disposed under the every pressure button to the inclined plane of every wedge can both with the mutual butt in bolt bottom that corresponds, the rear side of bottom plate is all pointed to at the pointed end of every wedge, all is connected with the transmission structure who is used for the patient to stimulate on every wedge, thereby transmission structure can make every wedge remove the bottom that the bottom that makes the bolt upwards breaks away from expansion sleeve to the rear side of bottom plate. The utility model discloses simple structure easily realizes, can supply the patient therefrom to escape by ones