CN103598895B - CT scanner screening arrangement - Google Patents
CT scanner screening arrangement Download PDFInfo
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- CN103598895B CN103598895B CN201310624304.0A CN201310624304A CN103598895B CN 103598895 B CN103598895 B CN 103598895B CN 201310624304 A CN201310624304 A CN 201310624304A CN 103598895 B CN103598895 B CN 103598895B
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Abstract
A kind of CT scanner screening arrangement, comprise X-ray tube metal cylinder, metallic plate, scanning holes metal cylinder, wherein: described X-ray tube metal cylinder is fixed on the X-ray tube of CT scanner, it is having the slit be convenient to imaging X-ray and passed through towards the detector direction of CT scanner; Described metallic plate is positioned over the detector of CT scanner behind, for absorbing X-ray not being detected device and absorbing; Described scanning holes metal cylinder is arranged in the scanning holes of CT scanner, and has the slit be convenient to imaging X-ray and passed through in the detector corresponding position of CT scanner.The present invention also provide a kind of can oneself shielding CT scanner.CT scanner screening arrangement of the present invention and can CT scanner miniaturization and the facilitation more of oneself's shielding, and X-ray spilt is little, need not be confined to shielding house use.
Description
Technical field
The present invention relates to medical instruments field, particularly a kind of CT scanner screening arrangement.
Background technology
As everyone knows, in CT scan process, there is a large amount of X-rays to enter in surrounding by the mode of scattering and transmission, increase the radiation background of environment, affect the health of CT scanner surrounding people.
In order to avoid these scatterings and Transmission X photon are to the injury of surrounding personnel, large-scale fixation of C T scanner is generally arranged in shielding house, and the wall of shielding house contains and shields absorbing material in a large number, can effectively prevent X-ray from transmitting from scanning room.
Along with the continuous miniaturization of CT scanner, some CT scanner needs the shielding house releasing CT Room, and in emergency room, intensive care unit, even public ward uses, and realizes the other scanning of bed.At this moment, old scheme just can not meet the shielding protection demand to X-ray.
At present, the scheme that first Neurologica company of the U.S. releasing mobile CT scanner of the whole world adopts hangs up plumbous curtain at scanner.But, when need protection space multistory angle constant, from X-ray source place more away from, the shielding material of needs is more, and the weight of such complete machine is larger, be unfavorable for portable and movement.
Summary of the invention
In view of this, be necessary to provide a kind of CT scanner screening arrangement.
CT scanner screening arrangement provided by the invention, comprise X-ray tube metal cylinder, metallic plate, scanning holes metal cylinder, wherein: described X-ray tube metal cylinder is enclosed within the X-ray tube of CT scanner, it is having the slit be convenient to imaging X-ray and passed through towards the detector direction of CT scanner; Described metallic plate is positioned over the detector of CT scanner behind, for absorbing X-ray not being detected device and absorbing; Described scanning holes metal cylinder is arranged in the scanning holes of CT scanner, and has the slit be convenient to imaging X-ray and passed through in the detector corresponding position of CT scanner.
Preferably, described X-ray tube metal cylinder attach most importance to metal make metal cylinder.
Preferably, described X-ray tube metal cylinder thickness is 1 ~ 5 millimeter.
Preferably, described scanning holes metal cylinder attach most importance to metal make metal cylinder.
Preferably, described scanning holes metal cylinder thickness is 1 ~ 5 millimeter.
Preferably, described scanning holes metal cylinder both can be fixed on scanning holes shell, also can be fixed on rotating disk.
Preferably, described CT scanner screening arrangement, also comprises shield glass, and described shield glass is arranged on CT scanner scanning holes one end relative with entrance, and described shield glass is movable.
Preferably, described shield glass is closed when not needing human body to pass whole scanning holes; Described shield glass is opened when needing human body to pass scanning holes.
Preferably, described shield glass is the glass containing heavy metal.
Preferably, when not considering light transmission, described shield glass can substitute by heavy metal plate.
The present invention also provide a kind of can oneself shielding CT scanner, comprising the X-ray tube for sending X-ray, receiving detector, the scanning holes of X-ray, this CT scanner also comprises X-ray tube metal cylinder, metallic plate, wherein: described X-ray tube metal cylinder is enclosed within the X-ray tube of CT scanner, it is having the slit be convenient to imaging X-ray and passed through towards the detector direction of CT scanner; Described metallic plate is positioned over the detector of CT scanner behind, for absorbing X-ray not being detected device and absorbing; Described scanning holes metal cylinder is arranged in the scanning holes of CT scanner, and has the slit identical with detector width in the detector corresponding position of CT scanner, so that imaging X-ray passes through.
Preferably, this CT scanner also comprises shield glass, and described shield glass is arranged on CT scanner scanning holes one end relative with entrance, and described shield glass is movable.
The shielding material that the present invention uses is little, and complete machine weight increases few, miniaturization and facilitation more, and X-ray spilt is little, shielding house need not be confined to use, can be applied in such as, the places such as emergency room, intensive care unit, public ward, ambulance, naval vessel.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of CT scanner screening arrangement of the present invention preferred embodiment.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, term " interior ", " outward ", " longitudinal direction ", " transverse direction ", " on ", D score, " top ", the orientation of the instruction such as " end " or position relationship be based on orientation shown in the drawings or position relationship, be only the present invention for convenience of description instead of require that the present invention with specific azimuth configuration and operation, therefore must can not be interpreted as limitation of the present invention.
Consulting shown in Fig. 1, is the schematic diagram of CT scanner screening arrangement of the present invention preferred embodiment.
In the present embodiment, CT scanner screening arrangement, comprising: X-ray tube metal cylinder 10, metallic plate 20, scanning holes metal cylinder 30 and shield glass 40.
Wherein, described X-ray tube metal cylinder 10 is enclosed within the X-ray tube of CT scanner, is opening a slit towards the detector direction of CT scanner.Described slit is used for the outgoing of X-ray, realizes CT imaging.Described X-ray tube metal cylinder 10 attach most importance to metal make metal cylinder, such as lead, tungsten alloy cylinder, thickness is generally 1 ~ 5 millimeter.
Described metallic plate 20 is positioned over the detector of CT scanner behind, for absorbing X-ray not being detected device and all absorbing.Described metallic plate 20 attach most importance to metal make metallic plate, such as tungsten alloy plate, stereotype etc., thickness is generally 1 ~ 5 millimeter.
Described scanning holes metal cylinder 30 is arranged in the scanning holes of CT scanner, for X-ray of ABSORPTION AND SCATTERING.Described scanning holes metal cylinder 30 has the slit be convenient to imaging X-ray and passed through in the detector direction of CT scanner, described slit is identical with the detector width of this CT scanner.Described scanning holes metal cylinder 30 is the metallic sheath that heavy metal such as tungsten alloy plate, stereotype etc. make, and thickness is generally 1 ~ 5 millimeter.Described scanning holes metal cylinder 30 both can be fixed on scanning holes shell, also can be fixed on rotating disk.The scanning holes metal cylinder 30 be fixed on scanning holes shell remains static always, and the scanning holes metal cylinder 30 be fixed on rotating disk operationally rotates with rotating disk.
Described shield glass 40 is arranged on CT scanner scanning holes one end relative with entrance, for ABSORPTION AND SCATTERING X-ray.Described shield glass 40 is movable: only doing Cranial Computed Tomography scanning, when also namely not needing human body to pass whole scanning holes, described shield glass 40 is closed; When needs human body passes scanning holes, during as scanning trunk, extremity, described shield glass 40 is opened.Described shield glass 40 is the glass containing heavy metal, and such as lead glass, this shield glass 40 has light transmission, can improve comfortableness when patient is scanned.When not considering light transmission, described shield glass 40 also can substitute by heavy metal plate.
In radiation protection, for the X-ray of same energy, the thickness of the shielding material of needs is the same.Due to the approximate picture point source of radiographic source, in order to shield the X-ray in a certain size space multistory angle range, from x-ray source more close to, the area of the shielding material of needs is less; From x-ray source more away from, the area of the shielding material of needs is larger.Area is multiplied by thickness, then is multiplied by the density of shielding material, the weight of Here it is whole shielding material.In order to reduce the weight of shielding material used as far as possible, the present invention allows shielding material as far as possible close to the source place of scattered x-ray, to save the use of material, (general large-scale CT scanner and screening arrangement weight are at about 2000kg, the weight of similar mobile CT scanner and screening arrangement is at about 400kg, and the present invention can by Weight control within 300kg).
Although the present invention is described with reference to current better embodiment; but those skilled in the art will be understood that; above-mentioned better embodiment is only used for the present invention is described; not be used for limiting protection scope of the present invention; any within the spirit and principles in the present invention scope; any modification of doing, equivalence replacement, improvement etc., all should be included within the scope of the present invention.
Claims (8)
1. a CT scanner screening arrangement, is characterized in that, comprises X-ray tube metal cylinder, metallic plate, scanning holes metal cylinder, wherein:
Described X-ray tube metal cylinder is fixed on the X-ray tube of CT scanner, and it is having the slit be convenient to imaging X-ray and passed through towards the detector direction of CT scanner;
Described metallic plate is positioned over the detector of CT scanner behind, for absorbing X-ray not being detected device and absorbing;
Described scanning holes metal cylinder is arranged in the scanning holes of CT scanner, and has the slit be convenient to imaging X-ray and passed through in the detector corresponding position of CT scanner;
Described CT scanner screening arrangement also comprises shield glass, and described shield glass is arranged on CT scanner scanning holes one end relative with entrance, and described shield glass is movable: described shield glass is closed when not needing human body to pass whole scanning holes; Described shield glass is opened when needing human body to pass scanning holes.
2. CT scanner screening arrangement as claimed in claim 1, is characterized in that, described X-ray tube metal cylinder is attached most importance to the metal cylinder that metal makes.
3. CT scanner screening arrangement as claimed in claim 2, it is characterized in that, described X-ray tube metal cylinder thickness is 1 ~ 5 millimeter.
4. CT scanner screening arrangement as claimed in claim 1, is characterized in that, described scanning holes metal cylinder is attached most importance to the metal cylinder that metal makes.
5. CT scanner screening arrangement as claimed in claim 4, it is characterized in that, described scanning holes metal cylinder thickness is 1 ~ 5 millimeter.
6. CT scanner screening arrangement as claimed in claim 1, it is characterized in that, described scanning holes metal cylinder both can be fixed on scanning holes shell, also can be fixed on rotating disk.
7. CT scanner screening arrangement as claimed in claim 1, it is characterized in that, described shield glass is the glass containing heavy metal.
8. can the CT scanner of oneself's shielding, comprising the X-ray tube for sending X-ray, receiving the detector of X-ray, scanning holes and rotating disk, it is characterized in that, this CT scanner also comprises X-ray tube metal cylinder, metallic plate, scanning holes metal cylinder, wherein:
Described X-ray tube metal cylinder is enclosed within the X-ray tube of CT scanner, and it is having the slit be convenient to imaging X-ray and passed through towards the detector direction of CT scanner;
Described metallic plate is positioned over the detector of CT scanner behind, for absorbing X-ray not being detected device and absorbing;
Described scanning holes metal cylinder is arranged in the scanning holes of CT scanner, and has the slit be convenient to imaging X-ray and passed through in the detector corresponding position of CT scanner;
This CT scanner also comprises shield glass, and described shield glass is arranged on CT scanner scanning holes one end relative with entrance, and described shield glass is movable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310624304.0A CN103598895B (en) | 2013-11-28 | 2013-11-28 | CT scanner screening arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310624304.0A CN103598895B (en) | 2013-11-28 | 2013-11-28 | CT scanner screening arrangement |
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| CN103598895A CN103598895A (en) | 2014-02-26 |
| CN103598895B true CN103598895B (en) | 2015-12-02 |
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| CN201310624304.0A Active CN103598895B (en) | 2013-11-28 | 2013-11-28 | CT scanner screening arrangement |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670283A (en) * | 2018-05-25 | 2018-10-19 | 邦盛高科特种车辆（天津）有限公司 | Flow-type CT examination deVice |
| CN109009192A (en) * | 2018-05-25 | 2018-12-18 | 邦盛高科特种车辆（天津）有限公司 | Box CT examination device |
| CN111657989A (en) * | 2020-07-09 | 2020-09-15 | 汕头市超声仪器研究所有限公司 | Method for reducing radiation of X-ray detection environment from receiving end |
| CN111803116A (en) * | 2020-07-17 | 2020-10-23 | 汕头市超声仪器研究所有限公司 | Method for reducing radiation of X-ray detection environment |
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| US4618975A (en) * | 1984-12-21 | 1986-10-21 | At&T Technologies, Inc. | Method and apparatus for analyzing a porous nonhomogeneous cylindrical object |
| US4977585A (en) * | 1989-04-05 | 1990-12-11 | Imatron, Inc. | Self shielded computerized tomographic scanner |
| CN1273635A (en) * | 1997-10-10 | 2000-11-15 | 模拟技术有限公司 | Rotary energy shield for computed tomography scanner |
| US6325538B1 (en) * | 2000-03-17 | 2001-12-04 | Christian M. Heesch | Radiation field isolator apparatus |
| CN101903764A (en) * | 2007-12-19 | 2010-12-01 | 皇家飞利浦电子股份有限公司 | A rotor and X-ray CT scanners |
| CN202839528U (en) * | 2012-06-15 | 2013-03-27 | 伟杰科技（苏州）有限公司 | X-RAY light source leakage-proof device |
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2013
- 2013-11-28 CN CN201310624304.0A patent/CN103598895B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4618975A (en) * | 1984-12-21 | 1986-10-21 | At&T Technologies, Inc. | Method and apparatus for analyzing a porous nonhomogeneous cylindrical object |
| US4977585A (en) * | 1989-04-05 | 1990-12-11 | Imatron, Inc. | Self shielded computerized tomographic scanner |
| CN1273635A (en) * | 1997-10-10 | 2000-11-15 | 模拟技术有限公司 | Rotary energy shield for computed tomography scanner |
| US6325538B1 (en) * | 2000-03-17 | 2001-12-04 | Christian M. Heesch | Radiation field isolator apparatus |
| CN101903764A (en) * | 2007-12-19 | 2010-12-01 | 皇家飞利浦电子股份有限公司 | A rotor and X-ray CT scanners |
| CN202839528U (en) * | 2012-06-15 | 2013-03-27 | 伟杰科技（苏州）有限公司 | X-RAY light source leakage-proof device |
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| CN103598895A (en) | 2014-02-26 |
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