Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A medical accelerator beam automatic centering control system

A control system and automatic centering technology, which is applied in the direction of X-ray/γ-ray/particle irradiation therapy, etc., can solve the disturbance of dose uniformity, strong electromagnetic interference in the working environment, and the inability to guarantee high-quality requirements for dose uniformity in the treatment field, etc. problem, to achieve the effect of compact structure and simple structure

Active Publication Date: 2019-10-18
江苏海明医疗器械有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the requirements for dose uniformity in the treatment field of medical accelerators are getting higher and higher. However, the existing accelerators have complex structures and strong electromagnetic interference in the working environment, and the dose uniformity is easily disturbed, which cannot guarantee high-quality requirements for dose uniformity in the treatment field.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A medical accelerator beam automatic centering control system
  • A medical accelerator beam automatic centering control system
  • A medical accelerator beam automatic centering control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] The invention provides an automatic centering control system of a medical accelerator beam, which is used for automatic calculation and automatic adjustment of the symmetry and uniformity of the dose of a medical electron linear accelerator.

[0025] The medical accelerator beam automatic centering control system includes an X-direction control subsystem and a Y-direction control subsystem; the two control subsystems are independent of each other; wherein, the X and Y directions are respectively: on the beam section with the beam center as the origin two directions perpendicular to each other. The composition of the X-direction control subsystem and the Y-direction control subsystem is the same, including an ionization chamber, a preamplifier module and a beam current control module. Among them, in the subsystem, the ionization chamber, the preampl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a medical accelerator beam automatic centring control system. The centring of the medical accelerator beam can be rapidly and effectively realized, the uniformity of treatment filed dosage can be improved, and the reliability is good. An ionization chamber is divided into a main ionization chamber and symmetrical branch ionization chambers, the deviation beam signal in the X or Y direction of the medical accelerator ray beam is detected by the branch ionization chambers, the deviation beam signal is amplified and rectified, and then the error value of the dosage rate symmetry between the two symmetrical branch ionization chambers is calculated, By changing the medical accelerator output-oriented power supply, the dosage rate symmetry error is corrected, so that the medical accelerator beam can meet the uniformity requirement in the treatment filed.

Description

technical field [0001] The invention relates to the technical field of electron linear accelerators used in medical treatment and industrial irradiation, in particular to an automatic centering control system for medical accelerator beams. Background technique [0002] The task of radiation therapy is to select, design and implement the best treatment plan according to the lesions of each patient. Such a plan mainly includes the size and direction of the treatment field, the dose contribution of each target area, and fractional treatment of the total prescribed dose. Therefore, it is necessary to automatically control the target position of the beam output by the accelerator, so as to ensure that the output dose meets the uniformity requirement in the treatment field. At this stage, the requirements for dose uniformity in the treatment field of medical accelerators are getting higher and higher. However, the existing accelerators have complex structures and strong electroma...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/10
Inventor 柘江吴建兴杨玉志王春波陈璞
Owner 江苏海明医疗器械有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com