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Isocenter debugging device and method for debugging isocenter of linear accelerator

A linear accelerator, isocenter technology, applied in the directions of X-ray/γ-ray/particle irradiation therapy, radiotherapy, treatment, etc., can solve the problems of high price of laser tracker, increase economic cost, etc., and achieve easy operation, maintenance and debugging. The effect of low cost and high debugging accuracy

Pending Publication Date: 2021-10-26
MEVION MEDICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the laser tracker is expensive. The price of each device is about RMB 800,000-1.2 million, and the annual maintenance and adjustment costs are about RMB 30,000, which undoubtedly increases the economic cost for the enterprise.

Method used

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  • Isocenter debugging device and method for debugging isocenter of linear accelerator
  • Isocenter debugging device and method for debugging isocenter of linear accelerator
  • Isocenter debugging device and method for debugging isocenter of linear accelerator

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Embodiment 1

[0051] like Figure 1-Figure 3 As shown, the embodiment of the present invention provides an isocenter adjustment device, which includes a medical front pointer 1 and a measurement assembly 2 . The medical front pointer 1 includes a fixed plate 11, a movable mechanism 12 and a ball bat 13. The fixed plate 11 is configured to connect the linear accelerator 100. In this embodiment, the medical front pointer 1 is used to adjust the isocenter of the linear accelerator 100, so the The fixing plate 1 is connected to the treatment head 101 of the linear accelerator 100 , preferably, the fixing plate 1 abuts against the bearing end surface of the treatment head 101 . The movable mechanism 12 is slidably connected to the fixed plate 11. The movable mechanism 12 includes a bat mounting frame 121. By adjusting the position of the movable mechanism 12 on the fixed plate 11, the axis of the ball bat mounting frame 121 coincides with the bearing rotation axis of the treatment head 101. , s...

Embodiment 2

[0057] like Figure 4 , Figure 5 As shown, the embodiment of the present invention provides a method for debugging the isocenter of a linear accelerator, using the isocenter debugging device in Embodiment 1, including the following steps:

[0058] Step S1, connect the fixing plate 11 of the medical front pointer 1 to the treatment head 101 of the linear accelerator 100, connect the support frame 21 of the measurement assembly 2 to the treatment bed 103 of the linear accelerator 100, and install the adjusting bat 13 on the bat The height position on the frame 121 makes the second indicator line 132 of the bat 13 align with the first indicator line 1211 of the bat mounting frame 121;

[0059] Before this step S1, the rotating frame 102 is first rotated 180° from the initial position, and the connection piece of the treatment head 101 is loosened, so that the treatment head 101 can freely rotate 360° on the rotating frame 102 . Because the treatment head 101 is installed on th...

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Abstract

The invention belongs to the technical field of medical accelerator radiotherapy, and discloses an isocenter debugging device and a method for debugging the isocenter of a linear accelerator, and the isocenter debugging device comprises a medical front pointer and a measurement assembly. The medical front pointer comprises a fixed plate, a movable mechanism and a bat. The fixed plate is used for being connected with external medical equipment. The movable mechanism provided with a bat mounting frame is connected to the fixed plate in a sliding mode, and the bat is detachably connected to the bat mounting frame and provided with an adjusting ball used for indicating the isocenter of external medical equipment; the measuring assembly is used for indicating the relative position of the bat mounting frame and comprises a dial indicator, and a measuring head of the dial indicator can abut against the adjusting ball and is perpendicular to a rotating shaft of the adjusting ball. According to the method for debugging the isocenter of the linear accelerator, the isocenter debugging device is applied, the isocenter can be rapidly debugged, the debugging precision requirement is met, the debugging method is simple and easy to operate, an expensive laser tracker does not need to be purchased, and the economical efficiency is good.

Description

technical field [0001] The invention relates to the technical field of medical accelerator radiotherapy, in particular to an isocenter debugging device and a method for debugging a linear accelerator isocenter. Background technique [0002] Radiation therapy uses rays to maximize the projected dose to the tumor area and reduce the received dose to surrounding normal tissues, so as to kill tumor cells to the greatest extent. Determining the isocenter of the accelerator is the basis for realizing precise radiotherapy. The axis of the rotating frame of the linear accelerator, the rotation axis of the treatment head and the rotation axis of the treatment bed intersect at one point, which is called the isocenter, and the accuracy of the isocenter considering the treatment effect is required to be ±0.5mm. The linear accelerator's bearing runout error, machining error and error caused by installation will directly affect the accuracy of the isocenter. At present, some scientific ...

Claims

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Application Information

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IPC IPC(8): A61N5/10
CPCA61N5/1075A61N5/1049
Inventor 帅进文马力黄常春秦超魏勇
Owner MEVION MEDICAL EQUIP CO LTD
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