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Whole-body radiotherapy lung blocking lead accurate aligning apparatus with three degrees of freedom

A radiotherapy, degree-of-freedom technology, used in X-ray/γ-ray/particle irradiation therapy, radiation safety devices, etc., can solve the problems of difficulty in ensuring positioning accuracy, impossible positioning accuracy, time-consuming and labor-intensive, and improve visual positioning. Accuracy, avoid electronic wire pollution, good light transmittance

Inactive Publication Date: 2014-04-09
SHANGHAI FIRST PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Since the standard thickness of the lead shield is 80mm, the weight of each piece of adult lung shield lead is more than 10 kg, and it is necessary to project light and shadow guidance when positioning (such as figure 2 As shown), in order to avoid blocking the light, try to pinch the edge of the lung block lead with your fingers to increase the effective projection area for alignment; however, it is difficult to grasp such a heavy object with human fingers, and it is impossible to position it accurately; in addition, once the lead block is fixed, it is easy It is difficult to correct the position; therefore, the above-mentioned positioning method for the lead retainer is time-consuming and laborious, and it is extremely difficult to ensure the necessary positioning accuracy. The entire operation process takes about 1-3 hours, and the error is > 5-10mm, and it is extremely difficult to ensure the necessary positioning precision

Method used

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  • Whole-body radiotherapy lung blocking lead accurate aligning apparatus with three degrees of freedom
  • Whole-body radiotherapy lung blocking lead accurate aligning apparatus with three degrees of freedom
  • Whole-body radiotherapy lung blocking lead accurate aligning apparatus with three degrees of freedom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like Figure 1~Figure 2 As shown, the three-degree-of-freedom precision aligner for the lung block lead for whole body radiotherapy is composed of the lung block lead 1, the rotating shaft 3, the rotating shaft sleeve 4, the connecting plate 6, the "X" axial slider 7, and the "Y" "Axial slider 10, base 13 and base fixing plate 14 are composed;

[0038] The head of the rotating shaft 3 is provided with a fixed column 2 and is fixedly connected with the lung block lead 1 to form a whole. The other end of the rotating shaft passes through the hole reserved at the lower part of the connecting plate 6 and is inserted into the rotating shaft sleeve 4, and the bolt 5 is locked through the rotating shaft. Locking; the upper part of the connecting plate 6 is sequentially connected with the "X" axial slider 7, the "Y" axial slider 10, the base 13 and the base fixing plate 14;

[0039]The "X" axial slider 7, the "Y" axial slider 10 and the base 13 are all provided with dovetail g...

Embodiment 2

[0046] like Figure 1~Figure 2 As shown, prepare the lung block lead, and adjust and use the lung block lead precision aligner for whole body radiation therapy,

[0047] (1) When the lung block lead 1 is casting (alloy lead melting temperature <85°), insert the lead block fixed column 2 into the casting mold, and after the lead liquid solidifies, the lung block lead 1 is integrated with the rotating shaft 3;

[0048] (2) Insert the rotating shaft 3 into the rotating shaft bushing 4, manually rotate the lung block lead 1 to an appropriate angle, and then lock the rotating shaft locking bolt 5;

[0049] (3) The "X" axial slider 7, the "Y" axial slider 10 and the base 13 fit each other through the dovetail groove, and the "X" axial displacement is realized by the "X" axial adjustment bolt 8, and the "Y" axial displacement is realized by the "Y" The axial adjustment bolt 11 realizes the "Y" axial displacement;

[0050] (4) The connecting plate 6 made of a transparent plate combi...

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Abstract

The invention belongs to the technical field of clinical medical equipment, and relates to a whole-body radiotherapy lung blocking lead accurate aligning apparatus with three degrees of freedom. The aligning apparatus comprises lung blocking lead, a rotary shaft, a rotary shaft sleeve, a connecting plate, an 'X' axial slider, a 'Y' axial slider, a base and a base fixing plate. A fixing column is arranged at the head of the rotary shaft, the rotary shaft is fixedly integrally connected with the lung blocking lead, and the other end of the rotary shaft penetrates a reserved hole in the lower portion of the connecting plate to be nested in the rotary shaft sleeve and is locked by a rotary shaft locking bolt; the 'X' axial slider, the 'Y' axial slider, the base and the base fixing plate are sequentially connected to the upper portion of the connecting plate. As service results indicated, the whole-body radiotherapy lung blocking lead accurate aligning apparatus has the advantages that the aligning apparatus can be quickly, conveniently and accurately positioned, can be quite easily and feasibly operated, and can be used for whole-body tumor radiotherapy.

Description

technical field [0001] The invention belongs to the technical field of clinical medical equipment, and relates to a three-degree-of-freedom precision alignment device for lung gear lead used in whole-body radiation therapy, which can be used for whole-body radiation therapy of tumors. Background technique [0002] Since the first whole-body radiation therapy in 1923, whole-body radiation therapy (hereinafter referred to as whole-body radiation therapy) has become the main treatment method for leukemia patients before bone marrow transplantation; it uses large doses of X-rays to irradiate the patient's whole body to destroy its original hematopoietic system , in order to prepare for the re-establishment of a new hematopoietic system. [0003] At present, in clinical treatment, whole body radiotherapy is usually performed in a treatment booth (such as figure 2 as shown), the patient takes the anteroposterior position in the booth (rays are incident from the front of the patie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/10A61N5/10
Inventor 陈智维
Owner SHANGHAI FIRST PEOPLES HOSPITAL