Lumbar vertebra oblique position photography positioning bracket for treating lumbar spondylolisthesis through oblique lateral interbody fusion

Abstract

The invention discloses a lumbar vertebra oblique position photography positioning bracket for treating lumbar spondylolisthesis through oblique lateral interbody fusion, and relates to the technical field of medical auxiliary instruments. The lumbar vertebra oblique position photography positioning bracket comprises a bottom plate, a vertical plate, a screw, a swivel nut, supporting rods and an angle ruler. A plurality of sliding grooves are symmetrically formed in the bottom plate at intervals. The vertical plate is vertically arranged in the middle of the bottom plate. A plurality of vertical grooves are formed in the vertical plate at intervals. Rotating holes communicating with the vertical grooves are formed in the top end of the vertical plate. One end of the screw penetrates through the rotating holes to be located in the vertical grooves. The screw penetrates through the ends of the rotating holes to be rotationally connected with the bottom plate. The swivel nut is arranged on the screw in a threaded manner and located in the vertical grooves. The supporting rods are telescopic rods and are symmetrically arranged on the two sides of the vertical plate. One end of each supporting rod is rotationally connected with the corresponding sliding groove, and the other end of each supporting rod is hinged to the swivel nut. The angle ruler is arranged beside the sliding groove in the left end of the bottom plate. Positioning and supporting are provided for lumbar vertebra oblique position photography, and clear and accurate images can be obtained conveniently.

Description

technical field [0001] The invention relates to the technical field of medical aids, in particular to a lumbar oblique photographic positioning bracket for oblique lateral interbody fusion for the treatment of lumbar spondylolisthesis. Background technique [0002] Oblique lumbar spine photography is one of the more commonly used routine lumbar X-ray imaging methods in hospital radiology department. The oblique lumbar spine is mainly an ideal and important imaging position for examining lumbar pedicle isthmus rupture and surrounding structural defects. Due to the special anatomical relationship of the lumbar vertebrae and the lack of reliable oblique angle positioning markers on the body surface, the ideal oblique lumbar spine photography requires accurate positioning to fully display the lumbar vertebral arch and intervertebral joints. [0003] At present, the domestic introduction is relatively general. Therefore, the actual operation angle is not accurate. In addition, be...

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Problems solved by technology

[0003] At present, the domestic introduction is relatively general, so the actual operation angle is not accurate. In addition, due to the lack of support points during body positioning correction, the limb positioning is often unstable and the body rotates, which can easily cause the lumbar pedicle isthmus to be deformed during photography. Impact diagnosis

[0004] At present, domestic textbooks and various literatures introduce oblique photography of the lumbar spine at 35 degrees, and the previous body position design method has been used, that is, relying on measuring rulers and angle boards to measure when projecting, the method is cumbersome and the accuracy is poor

Although the X-ray imaging bed can move controllably in multiple directions, it is necessary to check the angle before operation, which is extremely inaccurate, especially for elderly and critically ill patients who are not suitable for moving, which brings great harm to the radiology projection work. troubled

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