Horizontal connecting device and spine inner fixing system using same

Abstract

The invention belongs to the field of spine fixing systems, and discloses a horizontal connecting device and a spine inner fixing system using the same. The horizontal connecting device disclosed by the embodiment of the invention comprises a connecting rod, two clamping blocks and a locking device, wherein the connecting rod comprises a first connecting rod and a second connecting rod; the end ofthe first connecting rod is in spherical hinging with the end of the second connecting rod; the two clamping blocks are separately inserted to the first connecting rod and the second connecting rod;and the locking device is arranged to be used for pressing the spherical hinging point of the first connecting rod and the second connecting rod to realize relative positioning of the first connectingrod and the second connecting rod. The horizontal connecting device disclosed by the invention can perform multi-dimension adjustment, so that the stability after connection is improved.

Description

technical field [0001] The invention belongs to the field of spinal fixation systems, and in particular relates to a transverse connecting device and a spinal internal fixation system using the same. Background technique [0002] The interconnected hollow joints in the human spine are used to accommodate and protect the surrounding nervous system. When the spine has lesions due to genetic or acquired trauma, disease (such as bone tumor, scoliosis, degenerative disease), etc., it may compress the nervous system in the spinal canal and cause pain. At this time, surgical treatment must be performed, and a spinal internal fixation system needs to be installed on the vertebral body to achieve the effects of fixation, spinal reduction, and nerve decompression. [0003] The spinal internal fixation system in the prior art includes several pairs of longitudinal spinal rods for connecting with the vertebrae, and a transverse connecting device for fixing the adjacent longitudinal spi...

AI Technical Summary

Problems solved by technology

The transverse connecting device in the prior art often includes a cross bar, connecting hooks positioned at both ends of the cross bar and nuts for fixing the connecting hooks on the cross bar. During the clinical operation, its disadvantages include: On the one hand, the horizontal connecting device in the prior art needs to first fix the two connecting hooks on the longitudinal spinal rods respectively, then insert the horizontal rods into the holes on the hooks, then adjust the angular position and then tighten the nuts, which leads to The operation steps are relatively cumbersome, so that the operation time is longer and it is easy to bring greater pain to the patient; Adjustment, so that its adjustment method in use has limitations, and it cannot well avoid the vertebrae or nerve tissue between adjacent longitudinal spinal rods, which not only easily causes stimulation to the vertebrae or nerve tissue, but also reduces The stability of its connection

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