Oval-body-adjustable gynecological close-range back-loading source applicator

Abstract

The invention discloses an oval-body-adjustable gynecological close-range back-loading source applicator, and solves the problems that in the prior art, the source applicator cannot adapt to cervicalcancer patients in various vaginal environments, errors of radiotherapy dosage are easily caused, tumor control fails, and side effects are aggravated. The source applicator comprises a middle connecting frame consisting of a connecting frame main body, and is characterized in that in an elbow mounting hole at the upper end of the middle connecting frame, a source applicator bent is inserted; an oval body left hemisphere and an oval body right hemisphere are symmetrically arranged on the two sides of the middle connecting frame respectively and are each composed of a hemispheric shell, and inwards-concave cavities are formed in the opposite sides of the two hemispheric shells respectively. The oval body left hemisphere and the oval body right hemisphere are connected with the middle connecting frame through the oval body adjusting mechanism. The source applicator is reasonable in design, compact in structure, capable of meeting the treatment requirements of different types of middle and advanced cervical cancer radiotherapy patients, easy and convenient to operate, capable of effectively improving the radiotherapy quality, free of trauma, small in side reaction after treatment, economical, practical and good in patient medical compliance.

Description

technical field [0001] The invention belongs to the technical field of tumor radiation therapy equipment, and specifically relates to a device that can meet the treatment needs of different types of patients with middle and advanced cervical cancer radiotherapy, is easy to operate, can effectively improve the quality of radiotherapy, is non-invasive, has small side effects after treatment, and is economical. A gynecological short-distance afterload applicator for gynecology that is practical and has good patient compliance. Background technique [0002] With the development of tumor radiotherapy technology, brachytherapy has been widely used in the treatment of malignant tumors. Especially for some advanced cervical cancer patients who cannot be treated by surgery, radiotherapy is one of the most effective treatment methods, and brachytherapy plays a pivotal role in the entire treatment process. The disadvantages of the existing oval body applicator in clinical use are: the...

AI Technical Summary

Problems solved by technology

The disadvantages of the existing oval body applicator in clinical use are: the number of oval body models is too small to adapt to cervical cancer patients in various vaginal environments; when the applicator is implanted, the front end of the oval body often appears Inadequate fit with the patient's cervical vault and large displacement of the oval body, resulting in large dose errors in radiation therapy, and even failure of tumor control or aggravation of side effects

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