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Sacroiliac screw digitalized imbedding method based on 3D printing

A 3D printing and sacroiliac technology, applied in the medical field, can solve the problems of increasing the radiation exposure of patients and medical staff, complicated nail operation under fluoroscopy, and increasing the risk of tumor occurrence, so as to facilitate clinical application and promotion, reduce medical expenses, The effect of lowering the technical threshold

Active Publication Date: 2018-10-19
THE AFFILIATED HOSPITAL OF PUTIAN UNIV (THE SECOND HOSPITAL OF PUTIAN CITY)
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Problems solved by technology

However, the operation of placing screws under the fluoroscopy of an ordinary "C" arm X-ray machine is complicated, and repeated fluoroscopy from multiple angles is required during the operation. The number of fluoroscopy increases, which increases the radiation exposure of patients and medical staff, leading to radiation damage and increasing the risk of tumor occurrence.
Equipment such as computer navigation is expensive, requires professional operation, and is difficult to widely promote and apply
[0009] Although sacroiliac screws are widely used due to their good biomechanical properties and minimally invasive screw placement, however, safety and radiation exposure are still the main problems of sacroiliac screws.

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  • Sacroiliac screw digitalized imbedding method based on 3D printing
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  • Sacroiliac screw digitalized imbedding method based on 3D printing

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Embodiment Construction

[0028] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] refer to Figure 1-5 , the specific implementation method adopts the following technical solutions: 1. Mimics software design ideal safe screw path of sacroiliac screw: collect patient's preoperative pelvic CT scanning data, import Mimics software 3D to reconstruct 3D model of pelvis, 3D editing will reset sacroiliac joint .

[0030] Different from the traditional way of directly arranging screw tracks with the function keys MedCAD\Create Cylinder, the present invention proposes a bilateral sacroiliac screw track design method based on three-dimensional cutting (Simulation\Cut Orthogonal to Screen). (11) Use Simulation\Cut Orthogonal to Screen to divide the sacrum into left and right parts along the mid-sagittal plane of the sacrum, as sho...

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Abstract

The inVention discloses a sacroiliac screw digitalized imbedding method based on 3D printing and relates to the technical field of medicine. The method includes the following steps that 1, an ideal safe screw channel for sacroiliac screws is designed by means of Minics software, wherein preoperatiVe pelVis CT scanning data of a patient is collected, the Minics software is imported for three-dimensional reconstruction of a three-dimensional pelVis model, and sacroiliac joints are reset through three-dimensional editing; 2, a naVigation module is designed by means of SolidWorks and Mimics software; 3, 3D printing of a naVigation module entity is carried out; 4, the naVigation module obtained by means of 3D printing is adopted for assisting in embedding the sacroiliac screws. The functions ofthe related software are fully mined, by means of a new design and implementation method, digitalized design and a 3D printing technology, conVenient, radiation-free, safer and minimally inVasiVe embedding of the sacroiliac screws is achieVed with small incisions.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a 3D printed sacroiliac screw digital placement method. Background technique [0002] Sacroiliac joint fracture and dislocation is a common injury of the posterior pelvic ring. Anterior bone plates, sacral rods, and sacroiliac screws are commonly used for sacroiliac joint repair and fixation. Compared with other fixation methods, only 1-2 pieces of sacroiliac screw fixation can achieve very good results, and even only 1 screw is needed when the anterior pelvic ring is not damaged or is well fixed, which has very good internal Fixed effects and simple operation are widely used in clinical practice. [0003] The main difficulty of sacroiliac screw placement is the poor visualization of the C-arm bedside fluoroscopy machine and the proximity to important anatomical structures. Visualization is the key to sacroiliac screw fixation. Due to the influence of intestinal pneumatosis, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/90A61B34/20
CPCA61B17/88A61B2017/564A61B34/20A61B2034/2065A61B17/90
Inventor 陈宣煌张国栋林海滨郑锋吴长福陈旭
Owner THE AFFILIATED HOSPITAL OF PUTIAN UNIV (THE SECOND HOSPITAL OF PUTIAN CITY)
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