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Radiotherapy body position fixing and radiation shielding device

A body position and bag-fixing technology, which is used in radiation therapy, therapy, X-ray/γ-ray/particle irradiation therapy, etc., can solve problems such as prolonging the treatment time, and achieve the effect of improving the treatment effect, facilitating accurate occlusion, and facilitating whole body irradiation.

Inactive Publication Date: 2020-04-28
刘 杨 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, whole-body irradiation using high-energy X-rays produced by medical accelerators is the main technical means to provide transplant preparations for patients with hematological diseases. Because the single-time irradiation dose of whole-body irradiation is relatively large, in order to prevent the occurrence of radiation pneumonitis, the irradiation dose rate should be limited at 6cGy / minute or less, and the irradiation range should cover the whole body of the patient. These two factors make the treatment location about 4 meters away from the radiation source. Although the longer irradiation distance reduces the dose rate and avoids the occurrence of radiation pneumonitis, it can also be better. Covers the whole body of the patient, but greatly prolongs the treatment time, so that most of the irradiation time will exceed 3 hours each time. In addition, the patient's crystals and gonads must be shielded during the irradiation process. Whole body irradiation requires that all parts of the patient's body receive the same radiation dose. Therefore, the patient’s front chest and back face the radiation source for the same amount of time, and the position can be chosen from standing position, semi-sitting position and side lying position. Among them, the standing position has higher requirements on the patient’s physical condition, and it is generally difficult for patients to stand for a long time. The sitting position will block the patient's body, so that the dose cannot be guaranteed. The side lying position requires the least physical strength of the patient. It can be irradiated for a long time in a more comfortable position, but it cannot avoid the phenomenon that the patient's position changes during the treatment process, making the irradiation position offset

Method used

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  • Radiotherapy body position fixing and radiation shielding device
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  • Radiotherapy body position fixing and radiation shielding device

Examples

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Embodiment 1

[0026] This embodiment provides a radiotherapy body position fixation and radiation shielding device, such as Figure 1~3As shown, taking a male patient as an example, in this embodiment, the radiotherapy position fixing and radiation shielding device includes a vacuum fixing bag, a radiation shielding platform and a bed body, and the bed body includes a bed board 1 and a bed frame 2, and the bed board 1 is fixedly arranged on the bed. On the frame 2, the vacuum fixing bag is arranged on the bed board 1. The vacuum fixing bag includes a pre-fixing template and a double-layer tubular bag. The double-layer tubular bag is provided with an entrance through which the patient enters the double-layer tubular bag. The pre-fixation template It is fixed on the inner wall of the inner bag of the double-layer tubular bag, and the pre-fixed template is used to initially fix the patient's position, and vacuumize the closed space between the inner and outer layers of the double-layer tubular ...

Embodiment 2

[0037] The difference between this embodiment and Embodiment 1 is that when the patient is female, a pelvic window is also provided on the vacuum fixing bag, and a pelvic detection hole support frame is fixedly arranged on the pelvic cavity window, and the pelvic detection hole support is used to reserve the second The B-ultrasound detector channel and the second B-ultrasound detector channel are used to extend into the B-ultrasound probe to detect the position of the female patient's ovary and perform body surface calibration, so as to realize accurate shielding of the female patient's ovary.

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Abstract

The invention discloses a radiotherapy body position fixing and radiation shielding device, and relates to the technical field of radiotherapy equipment. The radiotherapy body position fixing and radiation shielding device comprises a vacuum fixing bag, radiation shielding platforms and a bed body, wherein the bed body comprises a bed board and a bed frame; the bed board is fixedly arranged on thebed frame; the vacuum fixing bag is used for fixing the body position of a patient; a lung detection hole support is fixedly arranged on the vacuum fixing bag and used for reserving a first B-ultrasonic detector channel to detect the position of the lung of the patient; the radiation shielding platforms are respectively used for shielding two lungs, reproductive organs and eyes of the patient; each radiation shielding platform comprises a lead shield, a supporting plate, a fastening device and a support; each lead shield is the same as an organ needing to be shielded in shape; a fastening device is arranged on each supporting plate; each support is provided with a height adjusting device and footing columns; and each radiation shielding platform is provided with a moving device used for adjusting the relative position of a supporting plate and a support. According to the invention, through arrangement of the vacuum fixing bag, the body position of the patient can be fixed; and througharrangement of three radiation shielding platforms, accurate shielding can be realized.

Description

technical field [0001] The invention relates to the technical field of radiotherapy equipment, in particular to a radiotherapy body position fixation and radiation shielding device. Background technique [0002] At present, whole-body irradiation using high-energy X-rays produced by medical accelerators is the main technical means to provide transplant preparations for patients with hematological diseases. Because the single-time irradiation dose of whole-body irradiation is relatively large, in order to prevent the occurrence of radiation pneumonitis, the irradiation dose rate should be limited at 6cGy / minute or less, and the irradiation range should cover the whole body of the patient. These two factors make the treatment location about 4 meters away from the radiation source. Although the longer irradiation distance reduces the dose rate and avoids the occurrence of radiation pneumonitis, it can also be better. Covers the whole body of the patient, but greatly prolongs th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1001A61N2005/1058A61N2005/1094A61N2005/1097
Inventor 刘杨李定杰丁丹红薛莹
Owner 刘 杨