Individualized lumbar pedicle screw placement guiding device
A technology of pedicle screw and guiding device, applied in medical science, internal bone synthesis, internal fixator, etc., can solve the problems of increasing the area of soft tissue stripped during surgery, destroying the structure of the posterior ligament complex, and affecting the positioning accuracy, etc., to achieve Reduce radiation exposure, improve the accuracy of nail placement, and ensure the effect of accurate placement
Inactive Publication Date: 2017-04-26
冯振华 +2
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Problems solved by technology
However, the fitting surface of the customized pedicle guide plate includes the spinous process, which destroys the structure of the posterior ligament complex (supraspinous ligament and interspinous ligament). In addition, the fitting area of the guide plate is relatively large, which increases the area of soft tissue stripped during surgery , which increases the operation time and affects the accuracy of positioning
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[0019] Specific embodiments: the individualized pedicle guiding device of the present invention is attached to the surface of the lumbar vertebra through the connecting body 3, and the position of the pedicle guiding device on the lumbar vertebra can be fine-tuned through the support rod 1 arranged on the connecting body 3, The individualized pedicle screw guide device can be better and stably fixed on the lumbar spine. The guide hole 2 cooperates with the guide device to guide the implantation of the pedicle screw. This device improves the stability and reliability of the operation and preserves the posterior ligament Complex, simple structure, easy to operate.
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The invention discloses an individualized lumbar pedicle screw placement guiding device. The individualized lumbar pedicle screw placement guiding device is composed of a guiding hole, a holding rod and a connecting body. The guiding hole is of a hollow tubular structure with the axis consistent with the pedicle axis; the holding rod is a stabilizing structure during a surgical operation and can perform fine adjustment on the position of the pedicle guiding device on the lumbar vertebra; and the connecting body is a structure with the surface capable of being attached to a vertebra plate and a transverse process surface, and a posterior longitudinal ligament complexus structure is avoided. The individualized lumbar pedicle screw placement guiding device is used for accurate place-in of a pedicle screw, the posterior longitudinal ligament complexus structure is reserved, and the device is convenient and easy to use.
Description
technical field [0001] The invention relates to the technical field of novel medical auxiliary equipment, in particular to an individualized lumbar pedicle screw placement guide device. Background technique [0002] Pedicle screws have superior three-dimensional orthopedic and short-segment fixation biomechanical properties, making this technology widely used in the surgical treatment of lumbar spondylolisthesis, spinal degenerative diseases, spinal stenosis, vertebral bone and other spinal diseases. At present, the commonly used nail placement methods mainly include: anatomical landmark method, X-ray fluoroscopy method, computer-aided navigation method and so on. The accuracy of nail placement by the anatomical marker point method mainly depends on the operator's personal experience and hand feeling, and the operation is difficult and risky. X-ray fluoroscopy requires frequent operations and a large amount of radiation, which has a certain impact on the health of the opera...
Claims
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Login to View More IPC IPC(8): A61B17/90A61B17/70
CPCA61B17/7076A61B17/90
Inventor 冯振华李肖斌郑文浩
Owner 冯振华
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