Fixing device for sideway surgery

The utility model relates to a fixing device for sideway surgery. The side-lying positioning device solves the problems that in the prior art, effective positioning is difficult to achieve when a patient lies on the side for an operation, and a traditional side-lying positioning device is poor in positioning effect and inconvenient to operate, and comprises an operation plank bed, and sliding connection mechanisms are axially arranged on the two sides of the operation plank bed. One end of the sliding connecting mechanism on any side of the operation plank bed is provided with a shoulder and back positioning mechanism capable of axially lifting and circumferentially rotating along a sliding adjusting assembly through the sliding adjusting assembly, and the other end of the sliding connecting mechanism is provided with a tail bone supporting mechanism through a sliding positioning assembly arranged in a sliding manner; the sliding connection mechanism on the other side of the operation plank bed is connected w