Multi-function wrench spicules

The present invention relates to a multifunctional wrench bone needles, belonging to the surgical field, and is suitable for fixing the orthopedic external fixation. Multifunctional spicules by the wrench handle (1), the rod (2), the nut (3), the ratchet locking block (4), a spring (5), a threaded pin (6), the ratchet sleeve (7), the outer jaw (8), screw jaw (9), the sandwich (10), the pawl (11), the pin (12), a core sleeve (13), balls (14), and is characterized in that: the core sleeve (13) is stepped, the right end is externally threaded central through hole, and both ends thereof threaded; the sandwich (10) through the center of the stepped bore, tapered bore, a tapered outer surface; ratchet sleeve (7) a stepped central through hole, externally threaded upper teeth, lower slotted; detent locking blocks (4) a stepped central through hole. During surgery, the bone needle lock, remove.