Orthopedic surgery guiding method

Abstract

The invention provides an orthopedic surgery guiding method. The method includes the steps of 1, fixing an acceleration sensor and a magnetic field sensor on a surgical instrument, acquiring gravitational acceleration components of shafts of the surgical instrument by the acceleration sensor, magnetic field components of the shafts of the surgical instrument by the magnetic field sensor, and additionally setting a lamp and a wireless data transmission unit on the surgical instrument; 2, converting acquired gravitational acceleration components and magnetic field components into azimuth and sagittal information; 3, outputting the azimuth and sagittal information to a display unit in real time by Bluetooth; 4, performing three-dimensional directional guidance in real time according to the displayed azimuth and sagittal information.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical devices, in particular to a guiding method for orthopedic surgery. Background technique [0002] In the existing orthopedic surgery operations, the puncture technique is widely used, especially in the transpedicular operation of spinal surgery, the puncture must be performed in the only correct bony channel, so that the screw or bone cement can be placed Therefore, clinicians are required to determine the sagittal angle and azimuth angle of instrument operation with high precision. However, at present, the angle is generally estimated roughly based on the experience of the doctor's visual observation. Therefore, even an experienced doctor cannot guarantee that the angle is completely correct or basically accurate. It has been reported in the literature that the misplacement rate of pedicle screws ranges from 10% to 33.7%, and the complications are serious. An inaccurate sagittal angle...

AI Technical Summary

Problems solved by technology

From the physical characteristics of the material itself, it is difficult to guarantee its inherent accuracy; the tool accuracy during processing also affects the accuracy of its device

[0006] 3. Due to the difference between nurses and nurses in the operation, it is difficult to require every user to abide by the reading rules when reading the scale, and human error is introduced from actual use

[0008] 5. From the description of the structure of the device itself, it is determined that its volume is too large, it is not portable, and it cannot provide dynamic position information so that medical staff can adjust the angle in time according to individual differences to meet the requirements of specific situations, and the use is relatively cumbersome and complicated

[0009] 6. The device must be anchored on bony structures such as the spinous process, which is only suitable for open surgery when the corresponding anatomical landmarks are clearly exposed, and cannot be applied to minimally invasive spinal surgery that is currently widely emerging, such as: Percutaneous pedicle screw fixation, percutaneous vertebroplasty, percutaneous kyphoplasty, etc.

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