Conformal intensity-modulated radiotherapy device

Abstract

The invention provides a conformal intensity-modulated radiotherapy device. The device comprises a shell, a shielding object, a source body, a pre-collimated body, a shielding door and a multi-leaf collimator, wherein an accommodation space and a shielding cavity are formed in the shell; the shielding object is filled in the shielding cavity; the source body is accommodated in the accommodation space and is used for bearing a cobalt radioactive source; the pre-collimated body is arranged on the emitting end of the radioactive source and includes a collimation hole, and when the radioactive source is at an open source position, the collimation hole directly faces the radioactive source; the shielding door is arranged on one side of the pre-collimated body, the side is far away from the radioactive source, and the shielding door directly faces the radioactive source; and the multi-leaf collimator is arranged outside the shell and directly faces the shielding door, and the shielding doorand the multi-leaf collimator are simultaneously rotated relative to the shell. The invention also provides a conformal intensity-modulated radiotherapy system.

Description

technical field [0001] The invention relates to the field of radiotherapy equipment, in particular to a conformal intensity-modulated radiotherapy device. Background technique [0002] Three-dimensional conformal radiation therapy is a high-precision radiation therapy. CT images are used to reconstruct the three-dimensional tumor structure. The distribution shape of the area is consistent with the shape of the target area in three-dimensional directions (front-back, left-right, and up-down directions), and at the same time reduces the dose received by normal tissues around the lesion. [0003] For the three-dimensional conformal radiotherapy system, the treatment head is the core part. Most of the existing conformal treatment heads use medical linear accelerators as radiation sources. However, the pre-equipment cost of linear accelerator radiation therapy is high, and the fixed asset investment of cobalt-60 therapy machine radiation therapy is low. Therefore, some manufact...

AI Technical Summary

Problems solved by technology

However, the pre-equipment cost of linear accelerator radiation therapy is relatively high, while the fixed asset investment of cobalt-60 therapy machine radiation therapy is relatively low. Therefore, some manufacturers and consumers are still willing to choose cobalt-60 therapy machine

However, the existing cobalt-60 treatment machine has a complicated structure and is very heavy, which is not conducive to installation and transportation

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