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

A rack rotation movement limiting device and a linear accelerator

A linear accelerator and rotary motion technology, applied in the field of medical equipment, can solve problems such as inability to achieve precise positioning

Active Publication Date: 2019-12-13
SHANGHAI UNITED IMAGING HEALTHCARE
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the above, the object of the present invention is to provide a frame rotation movement limiting device to solve the problem that the main frame of the existing linear accelerator cannot achieve precise positioning during the multi-turn rotation movement

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 rack rotation movement limiting device and a linear accelerator
  • A rack rotation movement limiting device and a linear accelerator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figure 1-Figure 2 As shown, this embodiment provides a preferred gantry rotation movement limiting device, which is used in a linear accelerator for medical radiation therapy. The device includes a motor, the motor is connected to the input end of the reduction box 2, and is used to input power to the reduction box 2; For rotation, the second output end 22 is connected with a motion conversion mechanism for converting the rotational motion of the second output end 22 into linear motion. Here, the rotational speeds of the first output end 21 and the second output end 22 are the same. Further, the above-mentioned motion conversion mechanism includes a rotary module connected to the second output end 22 and a linear module driven by the rotary module. The linear module is provided with a limit trigger block, and the limit trigger block moves linearly with the linear module. When the limit When the trigger block moves to the set position, the limit switch at the ...

Embodiment 2

[0044] This embodiment provides a linear accelerator, including the frame rotation limiting device proposed in the above embodiments. This embodiment solves the problem that the main frame 1 of the existing linear accelerator cannot achieve precise positioning and cannot identify whether the triggering process occurs at a limit angle or an intermediate angle during the multi-turn rotation movement. This embodiment can meet the requirement of effective position-limiting protection for the main frame 1 during the rotation exceeding 360 degrees (such as 720 degrees).

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 present invention discloses a rack rotary motion stop device, and relates to the medical instrument technology field. The accelerator comprises a motor and a reduction box driven by the motor, the first output end of the reduction box is connected with a main frame to drive the rotation of the main frame; the second output end of the reduction box is connected with a motion conversion mechanism to convert the rotation motion of the second output end to the rectilinear motion; the motion conversion mechanism comprises a rotation module connected with the second output end and a linear module driven by the rotation module, the linear module is provided with a stop triggering block, the stop triggering block performs rectilinear movement with the linear module, and when the stop triggering block is moved to a setting position, a limit switch at a corresponding position is triggered to control the motor and the main frame to stop running. The present invention further discloses a linear accelerator. The linear accelerator comprises a rack rotation motion stop device. The rotation motion of the main frame corresponds to the rectilinear motion of the stop triggering block to realize precision location and stop protection functions when the main frame performs multi-loop rotation.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a frame rotation movement limiting device and a linear accelerator. Background technique [0002] A medical linear accelerator is a biomedical particle accelerator used for radiotherapy of tumors. During the use of the medical linear accelerator, precise target positioning is carried out through the rotation of the frame and collimator, and the rotation and elevation of the treatment bed, so that the radiation beam is aimed at the lesion for radiotherapy. [0003] The range of rotation of the main frame of the traditional linear accelerator is small, and the electrical limit trigger block is installed on the rotary motion mechanism. When the rotation reaches the limit angle, the trigger block triggers the limit switch to realize the electrical limit protection. However, when the rotation range of the main frame of the linear accelerator exceeds 360 degrees, the trigg...

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): H01H3/16
CPCA61N5/10
Inventor 邵跃林齐伟张志军
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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