Source applicator positioning device and fixing method thereof

Abstract

The invention discloses a source applicator positioning device and a fixing method thereof, and relates to the technical field of source applicators. The positioning device is provided with three parts including a positioning cervical orifice guide part, an adjustable positioning lengthening part and a vaginal orifice positioning end part. The positioning cervical orifice guide part is connected with the adjustable positioning lengthening part in an inserting or rotating separation manner. The adjustable positioning lengthening part is connected with the vaginal orifice positioning end part in an inserting or rotating separating manner, the positioning cervix orifice guide part can play a role in positioning and guiding the source applicator, and the upper end part of the source applicator can be guided into the positioning cervix orifice through a pipeline in the positioning cervix orifice guide part; the fixation of the upper end part of the source applicator can be effectively ensured, so that the upper end part of the source applicator cannot be separated from the cervix orifice to touch the rectum and the bladder, and postoperative infection is effectively avoided; the vaginal orifice positioning end part can effectively ensure the fixation of the lower end part of the fixed source applicator, and the source applicator can be led into the vagina from a pipeline inside the positioning end part.

Description

technical field [0001] The invention relates to the technical field of applicators, in particular to a positioning device for applicators and a fixing method thereof. Background technique [0002] Brachytherapy is a form of radiation therapy. The radiation source is accurately placed near malignant tumor cells, and high-energy rays are used to kill tumor cells. It has the advantages of strong pertinence, good therapeutic effect, and low recurrence rate. Applied to clinical medical surgery, external radiation therapy, etc.; [0003] When performing brachytherapy, the following methods are basically used: 1. Put the applicator into the vagina, and use gauze packing or add a vaginal plug at the bottom to fix the applicator, but these two fixing methods are both There are many problems, because the gauze cannot be effectively connected with the applicator, the position of the applicator is easy to change, and the vaginal plug can only fix the bottom part of the applicator, but ...

AI Technical Summary

Problems solved by technology

[0003] When performing brachytherapy, the following methods are basically used: 1. Put the applicator into the vagina, and use gauze packing or add a vaginal plug at the bottom to fix the applicator, but these two fixing methods are both There are many problems, because the gauze cannot be effectively connected with the applicator, the position of the applicator is easy to change, and the vaginal plug can only fix the bottom part of the applicator, but cannot fix the upper part of the applicator, making the applicator The upper end of the source device often protrudes from the cervix during the treatment process, and the distance between the vagina and the rectum and bladder is extremely close, which can easily cause postoperative infection. At the same time, there are no protective measures for unnecessary irradiation parts, which seriously affects the radiotherapy effect. Second, using CT-guided 3D printed individualized vaginal multi-channel source applicator for three-dimensional afterloading radiation therapy, this method is expensive, the time period is extremely long, the comfort of the patient is poor during treatment, and it is also extremely It is easy to scratch the inside of the vagina; 3: Other structures have poor adaptability, and cannot be aimed at women of different ages and lengths, and the fixer cannot be adjusted according to vaginas of different lengths. A new structure can solve the above problems

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