Internal steel-plate fixing device suitable for finger and metacarpal fracture fixation

The utility model discloses an internal steel-plate fixing device suitable for finger and metacarpal fracture fixation. The internal steel-plate fixing device consists of a steel plate main body and arcuate lugs or an arcuate lug at the two ends or one end of the fixing device, wherein the rectangular steel plate main body and the arc-shaped arcuate lug are provided with screw holes. By virtue of structure design of the arcuate lug, the internal steel-plate fixing device can be used for overcoming the defects of inconvenience in fixation at the bottoms and small head parts of finger and metacarpal bones and poor anti-displacement capacity of the conventional straight steel plate, and thus the finger and metacarpal fracture fixation can be firmer; and the internal steel-plate fixing device can be conveniently shaped by a doctor according to operation conditions so as to be better adhered to the surfaces of the bones. The internal steel-plate fixing device is novel in conception, simple in structure, convenient to popularize and strong in practicability.