Cantilever gyration mechanism of gamma-ray source

A rotary mechanism and gamma ray technology are applied in the field of medical equipment components, which can solve the problems of small radius of gyration, limited rack space, and inability to treat lesions, and achieve the effects of convenient use, simple structure, and increased radius of gyration

Inactive Publication Date: 2011-07-13
XIAN AEROSPACEMOTOR MACHINE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above three radiation source devices have obvious disadvantages. Due to the small radius of gyration or the limited rack space, the space required for treatment cannot be reached. The existing problems are: some lesions of the body cannot be treated; The lesions cannot be treated on the same equipment; or, when the head and body lesions are treated on the same equipment, the head treatment source body cannot achieve continuous rotary motion

Method used

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  • Cantilever gyration mechanism of gamma-ray source
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  • Cantilever gyration mechanism of gamma-ray source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] This embodiment is a rotary device for a certain type of Gamma Knife radiation source, including a servo motor 1 , a gear mechanism 2 , a rotary shaft 5 , a column 6 , a cross arm 8 and a source body 10 .

[0015] Such as figure 1 shown. Rotating shaft 5 is a circular rod, and its diameter is the same as the inner hole of bearing 3, and its length is greater than the length of bearing seat 4. A pin hole is arranged on the end face of one end of the rotary shaft 5 . The column 6 is a structural member welded into a closed rectangular section with steel plates; one end of the column 6 is used as a connecting piece connected to the cross arm, and the other end is used as a counterweight of the cross arm, and the middle part has a connection hole for the rotary shaft 5. And transition fit with the rotary shaft through the connecting hole. There is also a pin hole at the position corresponding to the pin hole on the side surface of the column and the pin hole on the end s...

Embodiment 2

[0020] This embodiment is a rotary device for a certain type of Gamma Knife radiation source, including a servo motor 1 , a gear mechanism 2 , a rotary shaft 5 , a column 6 , a cross arm 8 and a source body 10 .

[0021] Such as figure 1 shown. Rotating shaft 5 is a circular rod, and its diameter is the same as the inner hole of bearing 3, and its length is greater than the length of bearing seat 4. A pin hole is arranged on the end face of one end of the rotary shaft 5 . The column 6 is a structural member welded into a closed rectangular section with steel plates; one end of the column 6 is used as a connecting piece connected to the cross arm, and the other end is used as a counterweight of the cross arm, and the middle part has a connection hole for the rotary shaft 5. And transition fit with the rotary shaft through the connecting hole. There is also a pin hole at the position corresponding to the pin hole on the side surface of the column and the pin hole on the end s...

Embodiment 3

[0026] This embodiment is a rotary device for a certain type of Gamma Knife radiation source, including a servo motor 1 , a gear mechanism 2 , a rotary shaft 5 , a column 6 , a cross arm 8 and a source body 10 .

[0027] Such as figure 1 shown. Rotating shaft 5 is a circular rod, and its diameter is the same as the inner hole of bearing 3, and its length is greater than the length of bearing seat 4. A pin hole is arranged on the end face of one end of the rotary shaft 5 . The column 6 is a structural member welded into a closed rectangular section with steel plates; one end of the column 6 is used as a connecting piece connected to the cross arm, and the other end is used as a counterweight of the cross arm, and the middle part has a connection hole for the rotary shaft 5. And transition fit with the rotary shaft through the connecting hole. There is also a pin hole at the position corresponding to the pin hole on the side surface of the column and the pin hole on the end s...

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Abstract

The invention relates to a cantilever gyration mechanism of a gamma-ray source. One end of a transverse arm (8) is fixed on the upper end of a stand column (6), and the other end of the transverse arm (8) is fixedly connected with a radioactive source body (10). The length of the part of the transverse arm (8) hung out of the stand column (6) is 500-1500mm, and the distance of the gyration radiusfrom the gamma-ray source body (10) to the nearest point of an isocenter line (12) is 320-550mm. In the invention, the transverse arm (8) of the gamma-ray source gyrates around the horizontal isocenter line (12) through a gyration shaft (5), wherein, the gyration speed ranges from 0.8 to 6 turns per minute. The gyration radius of the radioactive source is increased in the invention to ensure thatthe infection focus of a patient can be totally focused on a target spot during radiotherapy, thus the gyration mechanism has the characteristics of simple structure and convenient use, can be applied to gamma-ray or other radioactive energy beam therapy apparatuses, and is particularly suitable for treating whole-body focus infection by the gamma-ray source.

Description

1. Technical field [0001] The invention relates to a component of medical equipment, in particular to a cantilever turning mechanism of a gamma ray source. 2. Background technology [0002] Gamma Knife is a large-scale non-invasive medical device for treating tumors. Currently, there are three types of Gamma Knife on the market: Head Gamma Knife, Body Gamma Knife and Whole Body Gamma Knife. There are three types of rotary mechanisms for these gamma knife radiation sources: hemispherical rotary mechanism, "C" arm rotary mechanism, and ring frame rotary mechanism. The above three radiation source devices have obvious disadvantages. Due to the small radius of gyration or the limited rack space, the space required for treatment cannot be reached. The existing problems are: some lesions of the body cannot be treated; The lesions cannot be treated on the same equipment; or, when the head and body lesions are treated on the same equipment, the head treatment source body cannot ach...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N5/01
Inventor 朱敏哲杨东海胡燕琳武建涛
Owner XIAN AEROSPACEMOTOR MACHINE FACTORY
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