Unlock instant, AI-driven research and patent intelligence for your innovation.

Feedback device and multi-blade grating system

A feedback device and multi-leaf grating technology, applied in the medical field, can solve problems such as monitoring of blades that cannot be thin, and achieve the effects of improving accuracy, precision and conformity

Inactive Publication Date: 2019-01-04
SHANGHAI UNITED IMAGING HEALTHCARE
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a feedback device and a multi-leaf grating system to solve the problem that the existing secondary feedback device cannot monitor thinner blades

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
  • Feedback device and multi-blade grating system
  • Feedback device and multi-blade grating system
  • Feedback device and multi-blade grating system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] The present application will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0050] Such as Figure 1-4 As shown, the embodiment of the present application provides a multi-leaf collimator system 1 for conformal adjustment of the radiation emitted by the radiation source. A plurality of blades 10, a blade rail box 20 for placing the blades 10, and a driving device for driving the blades 10 to move. A plurality of blades 10 can be stacked and arranged with gaps along the thickness direction, and the blades 10 can move forward and backward. In order to control the forward and backward movement of the blades 10, a blade guide groove can also be provided in the blade guide rail box 20; the driving device can include a driving motor 40. A drive screw 80 and a drive nut 90. The drive motor 40 can be connected to the drive screw 80. The drive screw 80 can be rotatably connected to the drive nut 90. The dri...

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 relates to the field of medical technology and particularly relates to a feedback device and a multi-blade grating system. The feedback device comprises a supporting piece, a pulling wire, a mounting support and a feedback device, wherein one end of the pulling wire is used for being fixedly connected with the blade, and the other end is fixedly wound on the supporting piece; the mounting support is rotarily connected with the supporting piece; and the feedback device is used for acquiring an angular displacement parameter of the supporting piece and feeding the parameter to thereceiving end of the multi-blade grating system. According to the feedback device provided in the invention, as the area of the cross section at one end of the pulling wire can be very small, monitoring and feedback on a thinner blade can be realized, the monitoring accuracy on the thinner blade can be improved, the conformity of the multi-blade grating can be improved, the supporting piece and the mounting support can both be set to be devices with small sizes, and mounting in limited mounting space can be realized.

Description

technical field [0001] The present application relates to the field of medical technology, in particular to a feedback device and a multi-leaf grating system. Background technique [0002] At present, the medical equipment often used in tumor treatment is radiotherapy equipment, which uses the radiation emitted by the radiotherapy equipment to kill tumor cells. Radiation therapy equipment typically includes MLE systems for conformal adjustment of the radiation emitted by the radiation source. A multi-leaf grating system usually includes multiple pairs of blades, a drive motor that drives the blades, and a feedback device that monitors the motion of the blades and is installed at the end of the drive motor, which is generally called a primary feedback device. [0003] Since the primary feedback device is based on the corresponding relationship between the number of rotations of the drive motor and the displacement of the blade, the displacement of the blade movement is monit...

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 Applications(China)
IPC IPC(8): A61N5/10
CPCA61N5/1045A61N5/1065A61N5/1075
Inventor 张剑方啸李敦
Owner SHANGHAI UNITED IMAGING HEALTHCARE