Guide plate for seed implantation and manufacturing method and device thereof

Abstract

The invention provides a manufacturing method of a guide plate for seed implantation. The method comprises the following steps of scanning a position to be scanned, and obtaining a medical image containing the position to be scanned; obtaining an image of an area-of-interest according to the medical image; reconstructing and obtaining a three-dimensional model of the area-of-interest according to the image of the area-of-interest; determining a virtual needle inserting path according to the three-dimensional model; obtaining the virtual needle inserting angle, the needle inserting position and the needle inserting depth according to the virtual needle inserting path; conducting reversal design according to the three-dimensional model of the area-of-interest and the virtual needling inserting path, the needling inserting position and the needle inserting angle, and generating a guide plate model; conducting entity printing on the guide plate model through the rapid prototyping technology, and obtaining the guide plate for seed implantation. The guide plate for seed implantation obtained through the method is simple in structure and convenient to operate, a doctor can be guided to achieve accurate seed implantation, and operation time can be shortened. The invention further provides the guide plate which is used for seed implantation and manufactured according to the method and a seed-implantation-used device containing the guide plate for seed implantation.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a guide plate for particle implantation and a manufacturing method and device thereof. Background technique [0002] At present, the method of percutaneous puncture is often used clinically to diagnose and treat diseases. applied clinically. [0003] A large number of clinical data show that 70% to 80% of cancer patients are already in the middle and late stage when they are diagnosed. Traditional tumor treatment methods, such as radiotherapy and chemotherapy, are limited by dose and other factors, and it is difficult to completely kill tumor cells. not ideal. Tumor interventional therapy has the advantages of minimal invasiveness, low cost, safety, and good curative effect. Especially for those inoperable tumor patients, tumor interventional therapy is increasingly realizing its position in tumor treatment. [0004] Percutaneous puncture is a surgical method often use...

AI Technical Summary

Problems solved by technology

Although this method can improve the accuracy of particle implantation to a certain extent, in complex anatomical structures, conventional templates are prone to set-up errors (position or angle deviation between the patient and the template), which may cause The needle path and particle implantation position in the treatment do not match the plan, reducing the accuracy of treatment, resulting in a decrease in the radiation dose to the tumor site and an increase in the radiation dose to normal tissues, affecting the treatment effect and increasing complications

And because the tumor size, shape, and location of different patients are different, and the pinholes of the traditional conventional template are arranged in parallel at equal intervals, the use of this template to guide particle implantation will also lead to uneven dose distribution; in addition, the traditional The template generally needs to be pre-fixed by the fixing device, and then the template is driven to the patient's implanted site by the fixing device, which is complicated in structure and cumbersome in operation

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