radiotherapy device

Abstract

Disclosed in the invention is a radiotherapeutic device comprising a fixed bracket, a rotating bracket, a moving mechanism, an oscillating mechanism and a radioactive source. The rotating bracket in a hollow cylindrical shape is arranged at the fixed bracket in a rotatable manner. The moving mechanism is arranged at the inner wall of the rotating bracket; and the radioactive source is arranged at the moving mechanism by the oscillating mechanism. The rotating bracket is used for driving the moving mechanism to rotate relative to the fixed bracket; the moving mechanism is used for driving the oscillating mechanism and the radioactive source to make linear movement; and the oscillating mechanism is used for driving the radioactive source to make rotation. The device disclosed by the invention is capable of localizing rays emitted by the radioactive source rapidly, flexibly, and accurately, so that the radiotherapy efficiency can be improved; the radioactive source can move in a three-freedom-degree manner to realize conical-radiation-field radiotherapy, so that healthy cells around cancer cells can share the radiotherapeutic injuries and thus the body injury of the patient can be reduced.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a radiotherapy device. Background technique [0002] Radiation therapy has become an important means of treating tumors. It uses rays to enter the interior of the human body and ionize with cells in the body. The ions generated by the ionization can erode complex organic molecules, such as proteins, nucleic acids, and enzymes, resulting in normal chemical changes in the human body. The process is disturbed, and when the dose of radiation is large enough, it can cause cell death. [0003] With the development of medical technology getting better and better, the adaptability of radiation therapy devices is getting wider and wider, which can perform radiation therapy on various parts of the human body such as the head, neck, chest, and abdomen. However, in the current radiation therapy process, since the radiation source of the radiation therapy device can only rotate i...

AI Technical Summary

Problems solved by technology

However, in the current radiation therapy process, since the radiation source of the radiation therapy device can only rotate in a fixed direction in a two-dimensional plane, it is necessary to adjust the treatment bed up and down, left and right, and back and forth to a suitable position so that the target area Located in the radiation area emitted by the radiation source, resulting in long adjustment time and low position accuracy during radiation therapy, which reduces the treatment efficiency

Moreover, when the existing radiation therapy device is performing radiation therapy, the radiation source can only perform local radiation therapy on the cancer cells in a two-dimensional plane, so that the healthy cells in the target area also receive a large amount of radiation at the same time, causing greater damage to the patient. bodily injury

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