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Pedicle screw automatic implantation method

A pedicle screw and pedicle technology, applied in medical science, computerized tomography scanner, computer-aided planning/modeling, etc., to achieve the effect of reducing surgical wounds, reducing intraoperative time, and reducing recovery time

Inactive Publication Date: 2017-02-22
HARBIN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for inserting pedicle screws to solve the problems existing in the background technology of the appeal against the problems existing in the current spinal fusion

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  • Pedicle screw automatic implantation method

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Embodiment Construction

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0013] see figure 1 , in an embodiment of the present invention, a method for automatically inserting pedicle screws, using an image acquisition and processing module to achieve the task of capturing and storing spinal images, and completing the consistent gray scale range based on the pixel level and the size based on the image size Unify, and sharpen and strengthen the vein images with poor acquisition quality, and then use the corresponding fe...

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Abstract

The invention discloses a pedicle screw automatic implantation method. By virtue of an image acquisition and processing module, tasks of taking and storing a spinal image are achieved, so that gray scale range consistency at a pixel level and size unity based on image size are completed; an acquired vein image, which is relatively poor in quality, is subjected to sharpening strengthening treatment; then, by virtue of a corresponding feature extraction algorithm, spinal features of the pre-processed spinal image are extracted, and feature matching and space reconstruction are conducted on the extracted spinal features in an established feature database by virtue of a recognition decision; by virtue of a path screening module, wrong paths, which are set, are eliminated; by virtue of a safety assessment module, safety assessment is conducted on paths within an area and paths, which are high in safety, are selected out; by virtue of a depth calculating module, implantation depth calculation is conducted on the selected paths; by virtue of an optimization and comparison module, the calculated paths are comprehensively screened; and by virtue of an angle calculating module, a final path implantation angle is calculated. The method can improve a success rate of screw implantation, and meanwhile, the method can effectively shorten a time; and the method has an important significance for the practical application of a spinal pedicle screw automatic implantation technology.

Description

technical field [0001] The invention relates to the technical field of spinal surgery, in particular to a computer control method for automatically determining screw size and placing in spinal surgery. Background technique [0002] Pedicle screws are widely used in various situations such as vertebral fractures, spondylolisthesis, and spinal disc herniation due to their superior biomechanical properties and fast postoperative recovery. How to insert screws safely, quickly and accurately during the operation has become the key to the success of the operation. The preoperative planning of spinal fusion can provide a preoperative reference for the doctor, so that the doctor can more accurately determine the length of the screw and the radius of the screw used in the operation. A reasonable preoperative planning helps to improve the success rate of the operation, reduce the operation time and relieve the pain of the patient. Traditional preoperative planning for spinal fusion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/90A61B34/10A61B6/03
CPCA61B6/032A61B6/5205A61B6/5211A61B17/88A61B17/90
Inventor 刘侠吴云龙
Owner HARBIN UNIV OF SCI & TECH
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