Protection device for applying intracavity after-loading treatment to gynecological malignant tumors

Abstract

The invention discloses a protection device for applying intracavity after-loading treatment to gynecological malignant tumors. The protection device comprises a fixing plate, a threaded sleeve, an avoiding hole, a sliding column, a fixing frame A, a water injection blocking bag A, a fixing block, a T-shaped column, a threaded rod, a connecting frame, a fixing frame B, a water injection blocking bag B, a Y-shaped water pipe and a water pump. According to the protection device for applying intracavity after-loading treatment to gynecological malignant tumors, firstly, through the ingenious design of an expansion mechanism, the vagina area of a gynecological patient can be opened, and inspection and operation in the vagina are facilitated; the fixing effect is achieved in cooperation with the effect of the fixing frame; secondly, the bladder and rectum area of the patient can be well blocked and protected and the irradiation dose endangering organs can be reduced in cooperation with the effect of the liquid injection type water bag blocking structure, thereby ensuring after-loading treatment safety; and in addition, the problems that the accuracy of the irradiation dose of a target region is reduced, the repeatability is poor and the like due to the fact that the existing clinical gauze packing is prone to position inconsistency each time are solved, and finally popularization and application of gynecologic tumor treatment are facilitated.

Description

technical field [0001] The invention relates to the technical field of gynecological treatment instruments, in particular to a protection device for intracavity afterloading therapy applied to gynecological malignant tumors. Background technique [0002] After brachytherapy, the radiation source applicator is placed on the surface of the tumor body in the human body cavity or implanted into the tumor body with a needle, and the radioactive source is directly administered on the tumor body surface or inside the tumor body through the computer control system. Among them, brachytherapy has obvious therapeutic effects on malignant tumors such as gynecological malignant tumors, nasopharyngeal carcinoma, and esophageal carcinoma. [0003] According to the above, in the clinical aftertreatment of gynecological tumors, while ensuring the dose of the target area, the irradiation dose of the normal tissues around the cervix is ​​reduced, thereby reducing the occurrence of radiotherapy...

AI Technical Summary

Problems solved by technology

Although the above-mentioned gauze packing method is currently performed in most hospitals, there are still many defects and deficiencies in the clinical use; After the source device is removed, the gauze will be stuffed into the vagina, which will make it difficult to stuff the gauze and increase the difficulty of the operation accordingly

2. After the first irradiation, when the second treatment is performed, due to the patient's position, tumor shrinkage or the impact of the movement of the hospital bed during the operation, the gauze is not consistent with the previous packing, and the distance between the radiation source and the bladder and rectum has changed. The radiation dose to tumor lesions is reduced, while the radiation dose to the bladder and rectum is bound to increase

3. After taking out the device, it is often forgotten to take out the gauze, causing the gauze to be missed in the vagina, resulting in counting errors caused by human factors

4. Although the existing gauze stuffing can hold the applicator to a certain extent to achieve the corresponding fixing effect, but because the gauze itself lacks a strong support point, it completely relies on the squeezing force of the stuffing to fix the applicator. Therefore, clinical In actual use, the applicator is also prone to displacement or even prolapse.

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