Reset pliers for spreading and lifting lumbar vertebral bodies

Abstract

The invention relates to a pair of reset pliers for spreading and lifting lumbar vertebral bodies, which is used for the reset of a vertebral body and the fusion and fixation of parallel vertebral bodies so as to reset the normal relation of the sagittal sequence and force line of a vertebral column. The head part of a lifting handle I and the head part of a closing handle II rotate around a rivet so as to form the rotation fit of a plier body, a threaded rod penetrates through a through hole on the side surface of the tail part of the closing handle II to form buckled movable fit with a triangular clamp groove on the tail part of the lifting handle I, a nut is embedded in the through hole of the closing handle II and forms spiral movable fit with the threaded rod, the lifting handle I is in a hollow tube slot structure, a telescopic lifting bar penetrates out of the head part of the lifting handle I and forms a telescopic lifting nozzle with the jaws of the head part of the closing handle II, and the tail part of the telescopic lifting bar penetrates through a spiral handle. The pair of reset pliers has the advantages that on the one hand, the purpose of lateral and longitudinal vertebral body resetting which is required by inter-lumbar vertebral body surgery is realized; and on the other hand, the pair of reset pliers for spreading and lifting the lumbar vertebral bodies can satisfy the surgical requirements of different vertebral damages, not only can satisfy large lifting motions, but also can accurately and finely adjust the vertebral column of a local sick body.

Description

technical field [0001] The present invention relates to a lumbar vertebral body that is used for pedicle internal fixation system to reset the slipped vertebral body and perform vertebral body fusion and fixation in the treatment of spinal injury, spondylolisthesis and other diseases, finally restoring the normal sagittal sequence and line of force relationship of the spine. The utility model relates to an interbody stretching and pulling reset forceps, belonging to the field of medical device manufacturing. Background technique [0002] Currently, the most effective treatment for spinal injuries and spondylolisthesis is to use the pedicle internal fixation system to reset the slipped vertebrae and perform fusion and fixation of the vertebral bodies to finally restore the normal sagittal sequence and line of force relationship of the spine. Since the formation of spondylolisthesis is a chronic pathological process, under the long-term abnormal stress of the diseased segment,...

AI Technical Summary

Problems solved by technology

However, the current surgical tool forceps can only stretch the diseased vertebral body tissue, and the forceps itself cannot help the spondylolisthesis restore the vertebral body. It needs to be completed with the help of

Images