Manufacturing method of individualized auxiliary device for cervical cancer cavity combined with parametrial implantation

Abstract

The invention discloses a manufacturing method of an individualized auxiliary device for intracavitary combined parametrial implantation treatment for cervical carcinoma. The individualized auxiliarydevice comprises a vagina member and a graduated disc. The manufacturing method comprises the steps of filling the vagina, and then performing magnetic resonance imaging to obtain the bending degree of a uterine body, the length of a uterine cavity, the length of the vagina, the position of a parametrial tumor, the size of the parametrial tumor and the shape of the parametrial tumor; selecting a uterine cavity source applicator according to the bending degree of the uterine body and the length of the uterine cavity, thus determining the aperture of a first channel, determining the length of acolumn body according to the length of the vagina, and determining the number of second channels, the aperture of each second channel and an angle between each second channel and an axis according tothe position, size and shape of the parametrial tumor; and performing three-dimensional modeling on the vagina member according to the data determined in the above steps; and performing 3D printing onthe vagina member. The therapeutic effect of near-distance treatment for cervical carcinoma is improved. The manufacturing method is applied to the field of medical instruments.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a method for manufacturing an individualized auxiliary device for the treatment of cervical cancer cavity combined with parauterine implantation. Background technique [0002] Brachytherapy is one of the main treatment methods for locally advanced cervical cancer, and its curative effect is certain. In recent years, many units have developed the three-dimensional brachytherapy technology of intracavitary combined with parametrial implants. Compared with traditional intracavitary brachytherapy alone, parametrial implants have certain trauma to patients, but the dose conformity Significantly improved, the rectum and bladder and other important organs receive a lower dose, and the short-term curative effect is remarkable. [0003] Because the soft tissue imaging of CT images is not obvious, it is difficult to accurately obtain the high-risk tumor clinical target volume (HR-CTV) requi...

AI Technical Summary

Problems solved by technology

However, for the cervical cancer tumor target area of ​​different patients, its shape is irregular, and some residual lesions may be far away from the uterus. If the method of uniform needle insertion is used, it is difficult to ensure the dose and dose conformity of the tumor target area

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