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Preparation method of acetabulum guide plate for assisting accurate positioning after hemipelvic resection

A precise positioning, hemipelvic technology, applied in the field of acetabular guide plate, can solve the problems of many times of fluoroscopy, long learning curve, large investment in navigation system, etc., and achieve the effect of reducing operation time, simple implementation, and good promotion and use.

Inactive Publication Date: 2017-09-01
FOURTH MILITARY MEDICAL UNIVERSITY
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Problems solved by technology

In the existing technology, there are too many intraoperative fluoroscopy times, the navigation system requires a large investment, and the learning curve is long. Some non-large hospitals are difficult to apply

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  • Preparation method of acetabulum guide plate for assisting accurate positioning after hemipelvic resection
  • Preparation method of acetabulum guide plate for assisting accurate positioning after hemipelvic resection
  • Preparation method of acetabulum guide plate for assisting accurate positioning after hemipelvic resection

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] The preparation process of the present invention is as follows:

[0022] First, import the thin-slice CT data of the patient’s hemipelvis with a layer distance of 0.625 mm into Mimics 10.01 image reconstruction software (Materialise, Belgium) to perform three-dimensional reconstruction of the surgical area, determine the tumor margin, and simulate the hemipelvis on the computer. pelvic resection;

[0023] see figure 1 , and then, according to the spatial position of the original acetabulum combined with the shape of the pelvis after hemipelvis resection, the acetabular guide plate was designed in Mimics 10.01 image reconstruction software (Materialise Company, Belgium), and the specific steps were as follows:

[0024] 1) First, extract the three-dimensional spatial position, abduction angle, and anteversion angle data of the lateral acetabulum accord...

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Abstract

The invention discloses a preparation method of an acetabulum guide plate for assisting accurate positioning after hemipelvic resection. The method comprises the steps of firstly, importing thin-layer CT data of a patient into image reconstruction software to carry out three-dimensional reconstruction on an operative region, determining the tumor edge and simulating hemipelvic resection on a computer; secondly, designing the acetabulum guide plate by combining the pelvic morphology after hemipelvic resection according to the spatial position of a contralateral (original) acetabulum; and finally importing an STL file of the designed acetabulum guide plate into a 3D printing device to print the acetabulum guide plate, and then sterilizing and packaging. The acetabulum guide plate is prepared through data reconstruction of the lesion position of the patient; personalized treatment for each patient is achieved; the designed acetabulum guide plate is accurately designed according to the size and the position of the contralateral acetabulum of the patient; the position of the acetabulum can be directly determined by using the acetabulum guide plate after tumor resection in surgery, so that a lot of perspectives in past surgeries are reduced, the operative time is shortened and the patient and an intranperative operator benefit from the acetabulum guide plate.

Description

technical field [0001] The invention relates to an auxiliary tool used in the medical industry, in particular to an acetabular guide plate for assisting precise positioning after hemipelvis resection. Background technique [0002] For patients with severe pelvic tumors, hemipelvic resection is sometimes required, but functional reconstruction of limbs after hemipelvic resection has always been a clinical difficulty. In practical application, one of the more commonly used methods is the replacement of artificial prosthesis. In this process, how to accurately confirm the position of the acetabulum during the operation has always been a difficult problem in the operation. In previous work, the common There are two ways, one is to constantly adjust the position of the acetabulum through the doctor’s experience and intraoperative fluoroscopy, so as to finally determine the position of the acetabulum. An important problem with this method is that constant fluoroscopy is often requ...

Claims

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Application Information

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IPC IPC(8): A61B90/10B33Y50/00
CPCA61B90/10B33Y50/00
Inventor 郭征付军施凤伟范宏斌
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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