Dynamic monitoring system and method for placement of pedicle screw

Abstract

The invention discloses a dynamic monitoring system and method for placement of a pedicle screw. A linear laser emitter is used for emitting linear lasers, so that an X axis of a three-axis acceleration sensor is adjusted to be parallel to the spinous process; the three-axis acceleration sensor is used for monitoring gravitational acceleration components corresponding to the axes of a placing device in real time; a tension and pressure sensor is used for monitoring the resistance of an open device in a matched apparatus in the circuit opening process in real time; a torsion sensor is used for monitoring the torsion of the pedicle screw in the placing process in real time; a single chip microcomputer is used for calculating the sagittal view angles and cross section angles of the placing device according to the gravitational acceleration components, and transmitting the sagittal view angles, the cross section angles, the torsion values and the resistance values to a wireless receiver through a wireless emitter; a controller controls a display screen to display the sagittal view angles and the cross section angles which are continuously transmitted, so that a torsion value oscillogram and a resistance value oscillogram are respectively displayed, and controls a storage to store the oscillograms, the sagittal view angles and the cross section angles.

Description

technical field [0001] The invention relates to the technical field of pedicle screw placement, in particular to a dynamic monitoring system and method for pedicle screw placement. Background technique [0002] Pedicle screw technology is one of the core technologies in spinal surgery because it provides reliable three-column stability and meets the biomechanical requirements of spinal fixation. It has been widely used in the surgical treatment of spinal diseases. [0003] The key to pedicle screw placement lies in the determination of the screw entry point and the grasp of the direction of the screw entry. However, the anatomical relationship of the spine is complex and adjacent to important tissues, and the diameter of the pedicle is small, making it difficult to place the pedicle screw. Improper insertion position can easily damage blood vessels and nerves, or cause serious complications such as paralysis due to unstable screws. Due to the imperfection of current compute...

AI Technical Summary

Problems solved by technology

However, due to factors such as different patient positions or vertebral body rotation deformity during the operation, simply inserting pedicle screws according to the angle measured by preoperative imaging cannot effectively reduce the failure rate, and this type of pedicle screw guide provides data It is incomplete and has limited reference value for doctors. If the screw entry point is selected incorrectly, even if the screw is inserted in the correct direction, it will still lead to failure of pedicle screw placement

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