Intensity modulated compensation collimator for radiotherapy

Abstract

The strength regulating and compensating collimator for readiotherapy includes ring needle bin track, needle bin, needle feeding unit, needle withdrawing unit, needle bin conveying unit, and needle bin track switching unit. The ring needle bin track includes at least two ring needle bin track layers capable of rotating around one shaft with needle bin chamber for the needle bins to be set inside. The needle feeding unit and the needle withdrawing unit are set separately inside and outside the ring needle bin track; the needle bin track switching units are set inside and outside the ring needle bin track; and the needle bin conveying unit has one end set between the and the needle bin track switching unit and the ring needle bin track. The present invention can complete precise radiation strength regulation and adapting regulation to reduce over radiation and leakage radiation harm effectively.

Description

technical field [0001] The invention relates to a medical device, in particular to a medical device for tumor radiotherapy. Background technique [0002] As we all know, radiotherapy has a history of more than 100 years, whether it is traditional radiotherapy, three-dimensional target conformal radiotherapy, image-guided, intensity-modulated radiotherapy, it is still an important means of treating malignant tumors. In the process of conventional radiotherapy, two-dimensional conformal therapy and three-dimensional conformal therapy with multi-leaf collimator have long treatment time, complex strip field splicing technology, and large accuracy errors, which can easily lead to excessive irradiation or Hazards such as missed radiation will affect the therapeutic effect, and the remaining tumor cells will accelerate their re-proliferation, which is not locally controlled. Contents of the invention [0003] In order to solve the poor accuracy of radiotherapy and avoid hazards ...

AI Technical Summary

Problems solved by technology

In the process of conventional radiotherapy, two-dimensional conformal therapy and three-dimensional conformal therapy with multi-leaf collimator have long treatment time, complex strip field splicing technology, and large accuracy errors, which can easily lead to excessive irradiation or Hazards such as missed radiation, which will affect the therapeutic effect, and the remaining tumor cells will accelerate the re-proliferation, local uncontrolled

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