Strength regulating compensating collimator for radiotherapy

A radiation therapy and collimator technology, applied in the direction of using diaphragm/collimator, X-ray/γ-ray/particle irradiation therapy, etc., can solve the complex strip field splicing technology, excessive or missed irradiation, treatment time long and other problems, to avoid over-irradiation and leakage of irradiation

Inactive Publication Date: 2006-11-08
王乔生
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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

Method used

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  • Strength regulating compensating collimator for radiotherapy
  • Strength regulating compensating collimator for radiotherapy

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Embodiment Construction

[0009] Such as figure 1 and figure 2 As shown, the intensity-modulated compensating collimator for radiotherapy of the present invention includes an annular needle magazine guide rail 4, four sets of needle insertion devices 7, four sets of needle withdrawal devices 5, four sets of needle magazine track switching devices 2, and a set of needle magazine delivery devices. 1 and several needle warehouses 6.

[0010] see figure 1 , the annular needle storehouse guide rail 4 includes four layers of annular needle storehouse guide rail layers, each of which has a different thickness, is sheathed with each other and has a common axis. The four-layer circular needle magazine guide rail layer can be around the Y axis (combined with figure 2 ) rotate without interfering with each other. A needle chamber is provided on each layer of the circular needle chamber guide rail layer. The plurality of needle bins 6 include needle bins of four specifications, which are respectively detach...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10G21K1/02
Inventor 王乔生李发军郝镇熙
Owner 王乔生
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