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Radioactive source shielding device

A technology of shielding device and radioactive source, which is applied in the direction of X-ray/γ-ray/particle irradiation therapy, etc., and can solve the problems affecting the driving force and motion accuracy of the source body, large volume and weight, etc.

Inactive Publication Date: 2011-05-11
XIAN AEROSPACEMOTOR MACHINE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of excessive equipment volume and weight in the prior art, affecting the driving force and motion accuracy of the source body, the present invention proposes a radioactive source shielding device

Method used

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  • Radioactive source shielding device
  • Radioactive source shielding device
  • Radioactive source shielding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment includes a cantilever slewing mechanism 1, a nose shield, a ground shield 9 and a drive mechanism.

[0025] Cantilever turning mechanism 1 adopts prior art. The shielding body of the machine head includes a longitudinal shielding block 2 and a transverse shielding block 9 . Such as Figure 4 and Figure 5 As shown, the longitudinal shielding block 2 is a rectangular hexahedron, the length of which is the same as the width of the cantilever slewing mechanism 1, and the height is the same as the thickness of the cantilever slewing mechanism 1; the upper surface of the longitudinal shielding block 2 is an inner cylindrical surface, the lower surface is an outer cylindrical surface, and the rest The four sides are flat; there is a gap of 1 mm between the longitudinal shielding block 2 and the cylindrical surface of the ground shielding body 3 .

[0026] Such as figure 2 , image 3 As shown, the transverse shielding block 9 is a cuboid. The longitudina...

Embodiment 2

[0033] This embodiment includes a cantilever slewing mechanism 1, a nose shield, a ground shield 9 and a drive mechanism.

[0034] Cantilever turning mechanism 1 adopts prior art. The shielding body of the machine head includes a longitudinal shielding block 2 and a transverse shielding block 9 . Such as Figure 4 and Figure 5 As shown, the longitudinal shielding block 2 is a rectangular hexahedron, the length of which is the same as the width of the cantilever slewing mechanism 1, and the height is the same as the thickness of the cantilever slewing mechanism 1; the upper surface of the longitudinal shielding block 2 is an inner cylindrical surface, the lower surface is an outer cylindrical surface, and the rest The four sides are flat; there is a gap of 3 mm between the longitudinal shielding block 2 and the cylindrical surface of the ground shielding body 3 .

[0035] Such as figure 2 , image 3 As shown, the transverse shielding block 9 is a cuboid. The longitudina...

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Abstract

The invention relates to a radioactive source shielding device which comprises a cantilever rotating mechanism (1), a shield and a driving mechanism; wherein, the shield consists of a handpiece shieldand a ground shield (3); the handpiece shield is fixed on the cantilever of the cantilever rotating mechanism (1); the ground shield (3) is a box with an opening; the opening of the ground shield (3)is connected with the handpiece shield; shape and structure of an inner cavity of the ground shield (3) are in accordance with section shape of a source (4). When the source (4) rotates normally driven by the cantilever rotating mechanism (1), the ground shield (3) is at a non-working station (I); when the source (4) needs to be shielded, the ground shield (3) moves to a working station (I) and the handpiece rotates to the lowest point, thereby entering the ground shield (3). At the moment, the handpiece shield and the ground shield (4) make up an integral absolute shielding device with shielding function in six directions, thus realizing absolute shielding to radioactive source.

Description

1. Technical field [0001] The invention relates to a component of medical equipment, in particular to a radiation source shielding device. 2. Background technology [0002] Gamma Knife is a large-scale non-invasive medical device for treating tumors. Currently, there are three types of Gamma Knife on the market: Head Gamma Knife, Body Gamma Knife and Whole Body Gamma Knife. There are two ways to shield the radioactive source of the Gamma Knife currently on sale. One is that the source body with the radioactive source itself does not have any shielding function, and it mainly relies on the shielding body around the source body trajectory that does not participate in the source body movement to achieve shielding; the other One is that all the shields of the source body are integrated with the source body and participate in the required movement synchronously. The existing problem is: when relying entirely on the shielding body outside the source body that does not participate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10
Inventor 朱敏哲杨东海胡燕琳武建涛
Owner XIAN AEROSPACEMOTOR MACHINE FACTORY