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Cobalt-60 multi-lamination non-coplanar spiral lamination strength adjustable radiation therapy system

A technique of intensity-modulated radiation therapy, radiotherapy, used in radiation therapy, therapy, X-ray/γ-ray/particle radiation therapy, etc.

Inactive Publication Date: 2004-01-07
王乔生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another major technical problem that has plagued the clinical radiation oncology community for a long time is how to solve the problem of repositioning and dose verification after the patient moves

Method used

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  • Cobalt-60 multi-lamination non-coplanar spiral lamination strength adjustable radiation therapy system
  • Cobalt-60 multi-lamination non-coplanar spiral lamination strength adjustable radiation therapy system
  • Cobalt-60 multi-lamination non-coplanar spiral lamination strength adjustable radiation therapy system

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1: Cobalt-60 six-fault non-coplanar helical tomographic intensity-modulated radiotherapy system ( figure 1 ), consisting of a treatment host, a spiral three-dimensional treatment bed, a radiation treatment planning system and a central console. The treatment host includes: a rotating body composed of inner and outer layers of coaxial rotating drums. The inner layer is the supporting layer rotating drum 23, and the outer layer is the structural layer rotating drum 15. The bearings 6 installed at both ends of the supporting layer rotating drum 23 The rotating body is installed on the base main support 14, and six non-coplanar and confocal cobalt-60 radioactive source shields 10 and built-in radioactive sources 11 are installed on the structural layer rotating drum 15. The radioactive source is 60° in the XZ section of the rotating body. Arranged at an angle of 12°, every two adjacent sources are misaligned at an angle of 12° in the Y-axis direction, the maximum...

Embodiment 2

[0033] Embodiment 2: The difference from Embodiment 1 is that the rotating body of the treatment host is composed of inner, middle and outer three-layer coaxial rotating drums, the inner drum is the support layer drum 23, and the middle drum is the structural layer Revolving cylinder 15, outer layer revolving cylinder is driving revolving cylinder 24, and rotating gear is housed on it, matches with rotating gear 25 on the output shaft of speed reducer 2; Its cobalt source, positioning system, security inspection system, verification system are all as embodiment 1 is arranged on the structural cylinder 15.

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Abstract

The present invention provides a radio therapy apparatus integrates fanctions of therapeutic design, analogue location, position-arranging restoration, intensity-regulating radiotherapy, dose-monitoring and control and prescriptino modification, having no need of moving patient and completing whole therapeutic process by one-step. It is characterized by that several cobalt-60 sources for making spiral tomoirradiation and matched collimator and correspondent location, safety-check and proving systems are mounte don the therapeutic main machine rotating-body structure-layer drum. It can raise intertarget dosage several times over and can reduce peripheral normal tissue damage dosage several time over.

Description

technical field [0001] The invention relates to a radiation medical device, specifically a cobalt-60 multi-fault non-coplanar helical fault intensity-modulated radiation comprehensive medical device for treating malignant tumors and craniocerebral diseases. Background technique [0002] Cancer is a huge shadow of death hanging over human beings in this century. Like AIDS, it has become the most difficult demon that threatens the existence of the entire human being. According to the statistics of the World Health Organization, there are 9 million new cancer cases and 5 million deaths per year in the world. In the next 25 years, there will be 300 million new cases and 200 million deaths. In the 1970s, there were less than 1 million new cases and more than 700,000 deaths per year in my country. By the 1990s, the number of new cases increased sharply by 60% each year, reaching 1.6 million and 1.3 million deaths. Faced with these shocking figures, governments, medical circles, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/18A61N5/01A61N5/10
Inventor 王乔生
Owner 王乔生
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