Cervical front-side sheet steel bone screw anti-releasing device

Abstract

The invented cervical vertebrae front-path steel plate bone screw locking device relates to a kind of cervical vertebrae front-path steel plate and its fixing component, suitable for curing the diseases of cervical vertebrae regression, wound and tumor, etc. Its structure possesses butterfly steel plate and bone screw, said bone screw can be assembled into the bone screw hole on the butterfly steel plate, and it is characterized by that on the butterfly steel plate a locking plate seat hole is set at the place closed to bone screw, locking plate seat is placed in the locking plate seat hole, on the locking plate seat the locking plate assembling recess is set, the locking plate is mounted on the recess, and the upper portion of bone screw can be covered by two wings of the locking plate, and on the locking plate the locking hole and open groove are set.

Description

technical field [0001] The present invention relates to an anterior cervical plate bone screw anti-off device, which relates to an anterior cervical plate and a fixing part, which belongs to a medical operation instrument and is suitable for treating diseases such as cervical spine degeneration, trauma, and tumor. Background technique [0002] At present, the commonly used anterior cervical plate is fixed on the anterior cervical plate with bone screws. Due to various reasons, the bone screw may loosen and come out of the plate, resulting in major medical accidents. It will not come out of the steel plate even if it becomes loose. At present, foreign products often use small screws to expand the outer diameter of the hollow bone screw or cover the bone screw to prevent the bone screw from detaching from the plate. However, various structures have problems such as high machining accuracy, difficulty, and complicated operation. Contents of the invention [0003] Aiming at t...

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used anterior cervical plate is fixed on the anterior cervical plate with bone screws. Due to various reasons, the bone screw may loosen and come off the plate, resulting in major medical accidents. It will not fall out of the steel plate even if it becomes loose

At present, foreign products often use small screws to expand the outer diameter of the hollow bone screw or cover the bone screw to prevent the bone screw from protruding from the plate, but various structures have problems such as high processing accuracy, difficulty, and complicated operation.

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