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Preparation method for navigation template for guiding implantation of internal fracture fixation steel plate

A technology for navigation templates and fixing steel plates, applied in fixers, medical science, surgery, etc., can solve problems such as difficulty in finding the basis for navigation, interference in navigation template design, and difficulty in designing navigation template models

Inactive Publication Date: 2015-12-02
SOUTHERN MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When designing the navigation template directly with the steel plate as the navigation object, it is difficult to find the basis for navigation, and the principle of the navigation template relies on the "lock-key" characteristics of the bone surface. If additional factors of the steel plate are added, it will make the The design of the navigation template is disturbed by more factors, which affects the accuracy of the navigation template, and the design of the navigation template model of the steel plate is also difficult

Method used

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  • Preparation method for navigation template for guiding implantation of internal fracture fixation steel plate
  • Preparation method for navigation template for guiding implantation of internal fracture fixation steel plate
  • Preparation method for navigation template for guiding implantation of internal fracture fixation steel plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for preparing a navigation template for guiding the implantation of internal fixation plates for fractures is carried out through the following steps.

[0042] (1) Simulation simulation

[0043] Perform 3D reconstruction according to the fractured object to obtain a 3D reconstruction model of the fractured object, and perform fracture block reduction according to the 3D reconstruction model to obtain a virtual reduction model;

[0044] On the basis of the virtual reset model, the positioning of the virtual locking nail track and the virtual plate is carried out, and the implantation position of the virtual plate, the position of the locking nail track on the virtual plate, and the direction of the locking nail track are obtained. On the basis of the virtual reduction model, the virtual steel plate matches the bone surface of the virtual reduction model, and the position and direction of the nail track can be locked to fix the fracture block.

[0045] (2) Acqui...

Embodiment 2

[0059] Taking a locking plate of a tibial fracture target object as an example to illustrate the preparation method of the navigation template used to guide the implantation of the fracture internal fixation plate in the present invention, it is specifically carried out through the following steps.

[0060] (1) Simulation simulation

[0061] Perform 3D reconstruction based on the fractured object to obtain a 3D reconstruction model of the fractured object, and perform fracture block reduction based on the 3D reconstruction model to obtain a virtual reduction model, such as figure 1 shown.

[0062] On the basis of the virtual reset model, the virtual locking nail track 20 and the virtual steel plate 10 are positioned to obtain the virtual steel plate 10, the position of the locking nail track 20 on the virtual steel plate 10 and the direction of the locking nail track 20, such as figure 2 shown. On the basis of the virtual reduction model, the virtual steel plate matches the...

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Abstract

The invention provides a preparation method for a navigation template for guiding implantation of an internal fracture fixation steel plate. The preparation method comprises the following steps: (1), analogue simulation, performing three-dimensional reconstruction according to fracture cases to obtain a three-dimension reconstruction fracture model, and performing fracture virtual restoration; on the basis of a virtual restoration model, performing a virtual steel plate internal fixation implantation operation consisting of nail way locking design and virtual steel plate positioning; (2), navigation template design, consisting of (2.1), stable component design of the navigation template, (2.2), stable component obtaining, and (2.3), preparation of a navigation tunnel; (3), three-dimensional printing, printing the navigation template by utilizing a three-dimensional printing apparatus. According to the preparation method for the navigation template for guiding the implantation of the internal fracture fixation steel plate, the navigation template is obtained by utilizing an osseous marker at the circumference of a steel plate implantation position as positioning guiding, so that the preparation is simple; the prepared navigation template can accurately navigate a steel plate during an internal fixation operation, the accuracy is high, and the safety performance is excellent.

Description

technical field [0001] The invention relates to the technical field of fracture reduction and navigation, in particular to a method for preparing a navigation template for guiding the implantation of fracture internal fixation plates. Background technique [0002] Internal fixation is the technique of maintaining fracture alignment and stability with metal or biomaterials after fracture reduction through orthopedic surgery. For patients with large fracture fragments or fractures in complex structures, not only screw fixation is required, but also support and fixation by steel plates is required. In the prior art, the steel plate is usually prepared according to the average condition of the population, and the positions and directions of the screws on the steel plate are also preset. [0003] Fracture internal fixation implantation is the decisive link to achieve the effect of internal fixation surgery, and plays a pivotal role in the entire surgical treatment. In some comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/90
CPCA61B17/88A61B17/90
Inventor 黄文华黄华军
Owner SOUTHERN MEDICAL UNIVERSITY
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