Thermoplastic film prestretching auxiliary device for fixing head, neck and shoulder radiotherapy

Abstract

The invention discloses a thermoplastic film pre-stretching auxiliary device for fixing head, neck and shoulder radiotherapy, belongs to the field of body position fixing of clinical radiotherapy patients, and is used for stretching positioning films of the head, the neck and the shoulder of a patient. Comprising a press-fitting module used for fixing a thermoplastic film, a shaping module used for stretching the thermoplastic film upwards and a secondary stretching module used for stretching the thermoplastic film downwards, the press-fitting module is located on the periphery of the shaping module, and the secondary stretching module is located above the shaping module; the shaping module comprises a plurality of main stretching rollers capable of lifting and rotating, the main stretching rollers are arranged at intervals in the width or / and length direction of the thermoplastic film, and the distance between every two adjacent main stretching rollers is adjustable; the secondary stretching module comprises a plurality of auxiliary stretching rollers capable of ascending, descending and rotating, and the multiple auxiliary stretching rollers are sequentially arranged along the edge of the thermoplastic film. The problem of non-uniform stretching of the thermoplastic film can be effectively solved, so that the mesh holes in the thermoplastic film are kept consistent in later retraction, the individualized degree, repeatability and reliability of body position fixation of a patient are higher, the comfort degree is good, bony marks on the thermoplastic film covering the body surface of the patient are clearer and more reliable, and the patient is more comfortable to use. And the position of each radiotherapy irradiation is more accurate.

Description

technical field [0001] The invention belongs to the field of clinical radiotherapy patient body position fixation, and in particular relates to a thermoplastic film pre-stretching auxiliary device for fixing head, neck and shoulder radiotherapy. Background technique [0002] As one of the three main treatment methods for tumors, radiotherapy has entered the era of precise individualized radiotherapy with the increasing development of radiobiology, radiophysics, and computer technology. In the course of treatment, radiotherapy position fixation is one of the key links to ensure the implementation of precise radiotherapy technology, which is related to the repeatability and accuracy of daily radiotherapy for patients in the later stage. The combination of the thermoplastic film of the site and the precise and individualized body position fixation ensures the repeatability of the patient's radiotherapy position and the accuracy of the treatment. [0003] Existing thermoplastic...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a positioning film pre-stretching device, which can effectively solve the problem of uneven stretching of the thermoplastic film, so that the retraction of the mesh on the thermoplastic film in the later stage is consistent, and the position of the patient is fixed. The degree of individualization, repeatability and reliability are higher, and the comfort is good, so that the bony markers on the body surface are more accurate, and the thermoplastic film after plastic deformation can be used many times to improve the usage rate

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