Multi-leaf grating leaf motion position control device, method and linear accelerator

A technology of moving position and multi-leaf grating, which is applied in the direction of radiological diagnostic equipment control, instrumentation, radiotherapy, etc., can solve the problem of inaccurate leaf position detection, achieve high equipment safety performance, improve precise control, and ensure patient safety.

Active Publication Date: 2019-09-17
NEUSOFT MEDICAL SYST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of this, the present application provides a multi-leaf grating blade motion position control device, method and linear accelerator to solve the problem of blade position detection in the prior art caused by only using the motor encoder to detect the blade motion position in MLC equipment. exact question

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  • Multi-leaf grating leaf motion position control device, method and linear accelerator
  • Multi-leaf grating leaf motion position control device, method and linear accelerator
  • Multi-leaf grating leaf motion position control device, method and linear accelerator

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Embodiment Construction

[0035] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" etc. is based on the orientation or positional relationship shown in the drawings, and is only for It is convenient to describe the present invention and simplify the description, but does not indicate or impl...

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Abstract

The application provides a multi-leaf grating blade motion position control device, method and linear accelerator, wherein the device includes a control system and a blade trolley connected to the control system, and the blade trolley is movably connected to a sliding wire with a displacement sensor On the rod, one end of the sliding screw rod is connected to a trolley motor with an encoder, and both the trolley motor encoder and the displacement sensor are electrically connected to the control system. This application sets up the trolley motor encoder and displacement sensor to realize multi-directional redundant detection of the movement position of each vane trolley, improve the precise control of the movement position of the vane trolley, and preliminarily improve the precise control of the movement position of the vane to form a specified rule The scope of the field of view avoids X-rays from irradiating the healthy parts of the patient, ensuring the safety of the patient and improving the reliability of the equipment.

Description

technical field [0001] The present application relates to the technical field of medical diagnostic equipment, in particular to a multi-leaf grating leaf motion position control device, method and linear accelerator. Background technique [0002] With the rapid development of radiotherapy technology, conformal radiotherapy and intensity-modulated radiotherapy have become the main techniques used in daily radiotherapy in major hospitals. The optimal problem of radiation therapy is to minimize the radiation dose to the patient's healthy tissue, at least maintain the radiation dose within the harmful threshold range, while exposing the cancerous tissue to a significantly harmful radiation dose. [0003] At present, the use of medical electronic linear accelerators in the implementation of position control for conformal and intensity-modulated therapy is becoming more and more widely used, especially through the use of MLC (Multi-leaf collimators, multi-leaf collimators) to achi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/06A61B6/00
CPCA61B6/06A61B6/4064A61B6/54A61N5/1045A61N5/1077G08C23/06G21K1/046A61B6/542
Inventor 靳峰
Owner NEUSOFT MEDICAL SYST CO LTD
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