Method for preparing posture fixture for tumor radiotherapy by utilizing polyurethane foaming

Abstract

The invention provides a method for preparing a posture fixture for tumor radiotherapy by polyurethane foaming, which aims at providing the posture fixture featured with stable use performance and high fixation precision for the tumor radiotherapy, wherein technical keys comprise the following steps in turns: 1) preparing an outline template of a human body posture needing the radiotherapy, and arranging baffle plates outside according to need; 2) paving a sealed film bag; 3) pouring conditioned polyurethane foaming adhesive into the sealed film bag, foaming; 4) asking a patient to place the human body posture needing the radiotherapy onto the foaming adhesive to form the shape; and 5) puncturing the edge of the film bag by a sharp needle in the later molding period to discharge excessive gas, and reacting completely to obtain the fixture. The method belongs to the technical field of medical auxiliary instrument equipment.

Description

technical field [0001] The invention discloses a method for preparing a body-fixing body, specifically, a method for preparing a body-fixing body for tumor radiotherapy by foaming polyurethane; it belongs to the technical field of medical auxiliary equipment. Background technique [0002] Due to serious environmental pollution, people's life pressure is increasing, the incidence of tumors is rising, and the number of patients who need radiation therapy is increasing. During radiation therapy, patients need to be fixed in position to ensure the accuracy of treatment. At present, vacuum negative pressure bags are used in the industry. Although it can fix the body position, this fixation technology has two fatal shortcomings for the current intensity-modulated radiotherapy that requires high precision. One is that it is easy to leak air, which makes the patient have to interrupt treatment; : The degree of individual fit is not ideal enough, the accuracy of fixation is not high,...

AI Technical Summary

Problems solved by technology

[0002] Due to serious environmental pollution, people's life pressure is increasing, the incidence of tumors is rising, and the number of patients who need radiation therapy is increasing. During radiation therapy, patients need to be fixed in position to ensure the accuracy of treatment. At present, vacuum negative pressure bags are used in the industry. Although it can fix the body position, this fixation technology has two fatal shortcomings for the current intensity-modulated radiotherapy that requires high precision. One is that it is easy to leak air, which makes the patient have to interrupt treatment; : The degree of individual fit is not ideal, the accuracy of fixation is not high, and it cannot meet the needs of precise treatment, so it has become an urgent task for the industry to find and develop a better body position fixer to replace the current method