A clamping device for removing intraosseous screws from the spine

Abstract

The invention discloses a clamping device used for removing screws from a bone and applied to the spine in the technical field of medical instruments. The clamping device comprises a supporting handleand a clamping box body, and the clamping box body is arranged on the upper portion of the supporting handle; a limiting slide slot is formed in the top of the clamping box body, a transmission screwrod is transversely mounted in an inner cavity of the clamping box body through a rotating bearing, two groups of positioning slide blocks and two groups of transmission gears are symmetrically and separately arranged on the outer wall of the transmission screw rod; and the positioning slide blocks are arranged between the transmission gears and movably connected with the transmission gears through threads. According to the clamping device, medical staff do not need to conduct manual rotation and clamping operation during operation, the operation mode is relatively simple, the operation is quick, the operation time for removing the screws is shortened, the workload of the medical staff is reduced, and meanwhile, pain of a patient is relieved; moreover, the repeated operation is relativelyconvenient, and convenience is provided for the medical staff to repeatedly clamp and remove the treatment screws.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a clamp device for removing intraosseous screws from the spine. Background technique [0002] The human spine is composed of 33 vertebrae (7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 9 sacrum and coccyx) connected by ligaments, joints and intervertebral discs. And as the back wall of the thorax, abdomen and pelvis. The spine has the functions of supporting the trunk, protecting internal organs, protecting the spinal cord, and performing sports. In orthopedic medicine, the treatment of the spine is often supplemented by adding therapeutic screws. To dismantle, because the screw exists in human bones for a long time and will be connected with the human bone, the tail cap slips or the tail cap is easily broken during the nail removal operation, making it difficult to remove the screw. For broken nails, it is necessary to drill holes around the bones...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a clamping device for taking out intraosseous screws in the spine, to solve the problem in the above-mentioned background technology that although the clamp head clamps the broken nail when the screw is driven downward by shaking the handle, the clamping is firm, and the reverse It is not easy to slip or fall off when the nail is rotated. The operation is simple and convenient, saving time and effort, which greatly reduces the work difficulty of medical staff, but requires manual operation by medical staff, which is time-consuming and laborious. It prolongs the operation time and increases the work of medical staff. Intensity increases the pain of the patient, and at the same time, it is easy to repeat the clamping operation due to slipping, and the repeated operation is more cumbersome.

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