spinous process reconstruction door opener

Abstract

The invention discloses a door-opening plate for spinous process reconstruction, which belongs to the technical field of orthopedic implants. The door-opening plate for spinous process reconstruction includes an upper fixing plate, a spinous process fixing plate, a middle fixing plate, a lamina door-opening support plate and The lower fixing plate and the upper fixing plate are horizontally arranged with a pair of first through holes, and the first through holes are provided with spinous process reset screws driven inward from the top of the spinous process to fix the truncated spinous process and lamina The middle fixing plate is horizontally arranged with a pair of second through holes, and the second through hole is provided with first lamina screws for fixing the upper lamina at the opening of the lamina; the lower fixing plate is horizontally arranged with a pair of third through holes, The third through hole is provided with a second lamina screw for fixing the lower lamina where the door of the lamina is opened. The invention can reset the truncated spinous process, the reset spinous process is not easy to shift, and the fixation is reliable; the spinous process reset screw is driven inward from the top of the spinous process, which greatly facilitates the doctor's operation and observation during the operation.

Description

technical field [0001] The invention relates to the technical field of orthopedic implants, in particular to a door-opening plate for spinous process reconstruction. Background technique [0002] At present, in the expansion of the posterior cervical laminoplasty, in order to make grooves on the side of the lamina portal axis, the ligaments and muscles on the spinous process need to be stripped and the spinous process removed, while the posterior vertebral ligament complex consists of the spinous process, spinous process The interspinous ligament and the supraspinous ligament are composed of them and the muscles attached to them are the key factors to maintain the static stability of the cervical spine. Therefore, after resection of the spinous process, some patients will experience chronic pain, stiffness, heaviness and limited cervical spine movement in the neck, shoulder and back. The phenomenon of cervical spine axial symptoms, the probability of occurrence is 45%-80%. ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, some existing technologies use titanium plates and wire ropes to fix the spinous process. This method of fixing the spinous process is not stable, and it is related to the fixation techniques of different doctors, and the uncertainty is high; Some use a laminoplasty support device, which uses screws to fix the spinous process on the side of the spinous process. In this way of fixing the spinous process, it is difficult for the doctor to see and operate. sex, affecting stability

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