Novel expander for oral and maxillofacial surgery

The invention discloses a novel expander for oral and maxillofacial surgery. The expander includes a mounting plate, a fixing device is arranged on the right side face of the mounting plate, the outerside face of an arc-shaped plate of the fixing device is fixedly connected to the middle of the right side face of the mounting plate, and two symmetrical adjusting bases are arranged at the lower end of the right side face of the arc-shaped plate; the fixed ends of retractable rods of the adjusting bases are fixedly connected to the arc-shaped plate, a clamping groove is formed in the side faceof a fixing base of each adjusting base, screw rods are arranged in the clamping grooves, and the upper ends and lower ends of the side faces of the screw rods are both rotatably connected to the adjusting bases. The novel expander for the oral and maxillofacial surgery is simple in structure, adjustable and convenient to fix, the head of a patient can be fixed, the expander is prevented from being detached from the oral c