An orthopedic locking screw

Abstract

The present invention relates to the field of medical devices, in particular to an orthopedic locking screw, which comprises a screw body and a nail head installed at the bottom of the screw body. The peripheral outer wall of the screw body is engraved with external threads, the top of the screw body is sleeved with a trapezoidal ring, the inner wall of the trapezoidal ring is engraved with internal threads, the upper surface of the trapezoidal ring is provided with a rectangular groove, and the screw body The inner wall surface of the screw body is provided with a card slot, the inner cavity of the screw body is embedded with an anti-breakage nail device, the outer surface of the nail head is provided with a through hole, and the inner cavity of the nail head is embedded with a fixing structure. The top of the fixing structure runs through the screw body and the nail tail in turn. The invention can not only effectively reduce the risk of broken nails, reduce the operation time, but also increase the stability of the locking screws, and prevent the nails from coming off at the same time, ensuring the smooth progress of the patient's rehabilitation process. , a wide range of applications, strong practicability.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an orthopedic locking screw. Background technique [0002] At present, in the process of repairing broken bones with bone carvings, locking screws are the most basic and important medical devices. They cooperate with locking and compression bone plates to form a strong internal fixation bracket, recombine bones, and assist bone re-growth. Some fixation techniques will keep the locking screws in the body for a long time, and the screws may become loose during the later recovery process of the patient, which not only affects the fixation effect, but also increases the risk of disease deterioration. There is a risk of nail breakage during the nailing process, which prolongs the operation time of the operation and increases the probability of infection of the patient. The residual nails in the body affect the recovery of the patient and increase the psychological burden o...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of repairing broken bones with bone carvings, locking screws are the most basic and important medical devices. They cooperate with locking and compression bone plates to form a strong internal fixation bracket, recombine bones, and assist bone re-growth. Some fixation techniques will keep the locking screws in the body for a long time, and the screws may become loose during the later recovery process of the patient, which not only affects the fixation effect, but also increases the risk of disease deterioration. There is a risk of nail breakage during the nailing process, which prolongs the operation time of the operation and increases the probability of infection for the patient. Residual nails in the body affect the recovery of the patient and increase the psychological burden of the patient. It is not suitable for popularization.

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