A positioning device for an electronic portal image system for a 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 occupied space, complicated assembly, difficult control of mass production quality stability, etc. Reliable positioning and the effect of simplifying the overall transmission structure

Active Publication Date: 2021-03-12
江苏海明医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • 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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  • A positioning device for an electronic portal image system for a medical accelerator
  • A positioning device for an electronic portal image system for a medical accelerator
  • A positioning device for an electronic portal image system for a 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 a positioning device for an electronic portal image system for a medical accelerator, which belongs to the technical field of radiotherapy equipment. The overturning mechanism in the device is installed on the base, and the overturning mechanism realizes the rotation around the installation axis. The overturning positioning mechanism installed on the overturning positioning mechanism mechanically limits the overturning angle of the overturning mechanism. The clearance mechanism eliminates the transmission side clearance of the turning mechanism; the linear motion mechanism is installed on the turning mechanism, the ray detection device is installed on the linear moving mechanism, and the linear positioning mechanism installed on the turning mechanism mechanically limits the linear motion of the linear moving mechanism. Position, the linear positioning anti-backlash mechanism in the linear motion mechanism eliminates the transmission backlash of the linear transmission mechanism. The invention can quickly and reliably repeatedly locate the position of the radiation detection device through the turning mechanism and the linear movement 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 Patents(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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