Spine coronal plane balance evaluation device

Abstract

The invention provides a spinal coronal plane balance evaluation device, which comprises a reference rod, two positioning rods and a measuring unit, the measuring unit is used for measuring the distance between the reference rod and a C7 vertebral spinous process, one end of each positioning rod and the reference rod are hinged at the same hinge point to form a positioning included angle, the other ends of the positioning rods are arranged on the back of a human body and correspond to the upper edge points of the two iliac spines respectively, and the angular bisectors of the reference rod andthe positioning included angle coincide, so that the reference rod coincide with the perpendicular bisector of the connecting line of the upper edge points of the two iliac spines of the human body,and the connecting line of the upper edge points of the two iliac spines of the human body is an anterior superior spine connecting line. The spinal coronal plane balance evaluation device can alwaysstably measure the distance between the perpendicular bisector of the anterior superior spine connecting line and the C7 vertebral spinous process, and the balance state of the spine coronal plane canbe effectively evaluated by stabilizing the measurement result through a built-in measurement unit.

Description

technical field [0001] The invention belongs to the field of medical instruments, and in particular relates to a spine coronal plane balance evaluation device. Background technique [0002] Scoliosis, also known as scoliosis, is a three-dimensional deformity of the spine, including sequence abnormalities in the coronal, sagittal and axial positions. [0003] Scoliotic deformity specifically refers to the deviation of the spine in the coronal position. Mild scoliosis can be observed, and severe cases require surgical treatment. Scoliosis is a common disease that endangers adolescents and children, and the key is early detection and early treatment. With the improvement of the surgical level, more and more patients with idiopathic scoliosis are treated with posterior pedicle screw fixation, osteotomy correction, bone graft fusion and internal fixation. With the development of equipment, the effect of surgical correction gradually changes. Good, but the incidence of scoliotic...

AI Technical Summary

Problems solved by technology

However, there are the following defects, which cause a large deviation between the evaluation results and the actual situation: 1. The stability is poor, and the reference line often found during use does not coincide with the mid-perpendicular line connecting the anterior superior iliac spine, resulting in the loss of the measurement reference

2. There is no measuring device on the device, so when measuring the distance, it is necessary to measure the distance indirectly, which will inevitably cause measurement errors

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