Verification die body for isocenter and radial range during radiotherapy

Abstract

The invention relates to a verification die body, particularly relates to a die body used for verifying an isocenter and a radial range during radiotherapy, and belongs to the technical field of medical apparatus and instrument structures. The verification die body for the isocenter and the radial range during the radiotherapy is a standard cube of organic glass, and is characterized in that the center of the cube is provided with a tungsten alloy globule for detecting the isocenter; the face of the cube is provided with marking lines for detecting the conformity of the radial range and a light range; bevel faces are arranged above the cube. According to the verification die body for the isocenter and the radial range during the radiotherapy, disclosed by the invention, the tungsten alloy globule at the center is capable of detecting whether the centers of required instruments during the radiotherapy are consistent or not, and the marking lines are capable of detecting the conformity of the radial range and the light range, and the bevel faces arranged above the cube can be used for checking the conformity of the radial range and the light range at angles of 0, 45, 90, 270 and 315, so that the scope of examination is broadened; the die body is simple in design, smaller in size, convenient to install and complete in function, and is capable of finishing daily quality control projects.

Description

[0001] technical field [0002] The invention relates to a verification phantom, specifically a phantom for verifying the isocenter and radiation field used in the radiotherapy process, and belongs to the technical field of medical device structures. Background technique [0003] Radiation therapy is a subject that relies on radiotherapy equipment as a tool to treat patients. The quality of radiotherapy equipment directly determines the success of treatment for patients. Standards, relying on this standard for acceptance of radiotherapy equipment, in order to ensure the clinical application of radiotherapy equipment. Validation phantoms are important tools for quality assurance in radiotherapy. [0004] The verification phantoms currently used are generally square plexiglass blocks made according to the standard. During use, only the fields and light fields indicated by the 90°, 180°, 270°, and 360° angles of the linear accelerator and the analog positioning machine can b...

AI Technical Summary

Problems solved by technology

[0004] The verification phantoms currently used are generally square plexiglass blocks made according to the standard. During use, only the fields and light fields indicated by the 90°, 180°, 270°, and 360° angles of the linear accelerator and the analog positioning machine can be verified. The coincidence of the angles of 45° and 315° cannot be checked for the radiation field and light field indicated by the angle

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