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Electronic portal imaging device positioning device used for medical accelerator

An electronic portal imaging and positioning device technology, which is applied in the field of electronic portal imaging system positioning devices for medical accelerators, can solve the problems of large space occupation, complicated assembly, unfavorable modular production, etc., achieve reliable corner positioning, and simplify the overall transmission Reliable effect of structure and positioning

Active Publication Date: 2019-07-02
江苏海明医疗器械有限公司
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used connecting rod turning mechanism is complicated to assemble and takes up a lot of space, which is not conducive to modular production. The positioning accuracy is related to the quality of debugging personnel, and the quality stability of mass production is difficult to control.

Method used

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  • Electronic portal imaging device positioning device used for medical accelerator
  • Electronic portal imaging device positioning device used for medical accelerator
  • Electronic portal imaging device positioning device used for medical accelerator

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Embodiment Construction

[0026] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] as attached figure 1 and 2 As shown, the present invention provides a positioning device for an electronic portal imaging system for a medical accelerator. The positioning device includes a turning mechanism, a linear motion mechanism, a base, a turning positioning mechanism, a linear positioning mechanism, an anti-collision mechanism and a radiation detection device;

[0028] The base includes an installation base plate 1, a main support column 2, an auxiliary support column 3 and a bearing seat 6;

[0029] The turning mechanism includes a rotary reducer 4, a turning drive reduction motor 5, a rotating positioning anti-backlash mechanism 18, a rotating shaft 7, a linear motion support 8 and an angle sampler 16;

[0030] The linear motion mechanism includes a linear module 9, a linear drive gear motor 10, a photoelectric switch assembly 17, a line...

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Abstract

The invention discloses an electronic portal imaging device positioning device used for a medical accelerator, which belongs to the technical field of radiation treatment instruments. An overturn mechanism in the device is installed on a base, the overturn mechanism achieves rotation around a mounting axis, an overturn positioning mechanism mounted on the overturn positioning mechanism performs mechanical limit on an overturn angle of the overturn mechanism, and a rotating positioning clearance eliminating mechanism mounted on the overturn mechanism performs elimination on a transmission sidegap of the overturn mechanism; and a linear motion mechanism is mounted on the overturn mechanism, a ray detection device is mounted on the linear motion mechanism, a linear positioning mechanism mounted on the overturn mechanism performs the mechanical limit on a linear motion of the linear motion mechanism, and a linear positioning clearance eliminating in the linear motion mechanism performs the elimination on the transmission side gap of a linear transmission mechanism. The device can quickly, reliably and repeatedly position a position of the ray detection device by the overturn mechanismand the linear motion mechanism.

Description

technical field [0001] The invention belongs to the technical field of radiotherapy equipment, and in particular relates to a positioning device for an electronic portal image system for a medical accelerator. Background technique [0002] In the process of precise radiotherapy for tumor patients using an accelerator, it is required to verify the consistency between the actual irradiation field and the planned irradiation field in real time. The positioning accuracy and repeat positioning accuracy of the radiation detection device are the guarantee for the real-time verification of the irradiation field. The commonly used connecting rod turning mechanism is complicated to assemble and takes up a lot of space, which is not conducive to modular production. The positioning accuracy is related to the quality of debugging personnel, and the quality stability of mass production is difficult to control. Contents of the invention [0003] In view of this, the present invention pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/103A61N5/1049A61N2005/1054A61N2005/1092
Inventor 沙福泰王小军陈璞吴建兴王春波吴君军李军张西志邓勇柘江
Owner 江苏海明医疗器械有限公司
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