The invention relates to the technical field of
medical instruments, in particular to an adjustable 3D printing cervical
vertebra orthopedic device adaptive to different neck girths, which comprises a neck support, an adjusting mechanism is arranged on the neck support, the adjusting mechanism comprises two groups of fixing plates arranged on two sides of the neck support, and electric telescopic rods are movably arranged in the two groups of fixing plates. According to the invention, the height of the limiting ring in the
neck collar is adjusted by pulling the
handle, the rotating shaft is rotated to drive the second gear to rotate, the second gear rotates to drive the first gear to rotate, the first gear rotates to drive the second gear to rotate, and the second gear rotates to drive the first gear to rotate to drive the second gear to rotate to drive the second gear to rotate to drive the second gear to rotate to drive the second gear to rotate. When the first gear rotates, a limiting ring is driven to rotate through a connecting plate, the limiting ring rotates to drive an electric push rod to rotate, and the electric push rod rotates to drive a connecting column to rotate through a limiting sleeve, so that a
massage ball is driven to rotate in the neck support to
massage different positions of the neck of a patient, and the use comfort of the device is improved.