CN103598895A - Ct scanner shielding device - Google Patents
Ct scanner shielding device Download PDFInfo
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- CN103598895A CN103598895A CN201310624304.0A CN201310624304A CN103598895A CN 103598895 A CN103598895 A CN 103598895A CN 201310624304 A CN201310624304 A CN 201310624304A CN 103598895 A CN103598895 A CN 103598895A
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Abstract
A CT scanner shielding device comprises X-ray tube metal barrels, a metal plate and scanning hole metal barrels, wherein the X-ray tube metal barrels are fixed on X-ray tubes of a CT scanner, slots enabling imaging X photons to pass through conveniently are formed in the X-ray tube metal barrels in the direction facing a detector of the CT scanner. The metal plate is arranged behind the detector of the CT scanner, and is used for absorbing the X photons which are not absorbed by the detector. The scanning hole metal barrels are arranged in the scanning holes of the CT scanner, and slots enabling the imaging X photons to pass through conveniently are formed in the positions, corresponding to the detector of the CT scanner, of the scanning hole metal barrels. The invention further provides a CT scanner capable of achieving self-shielding. The CT scanner shielding device and the CT scanner capable of achieving the self-shielding are more miniaturized and more convenient, the X photons leaked out are few, and the CT scanner shielding device and the CT scanner capable of achieving the self-shielding do not need to be limited to be used in shielding rooms.
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 CT scanner personnel's health around.
The injury to surrounding personnel for fear of these scatterings and Transmission X photon, large-scale fixation of C T scanner is generally arranged in shielding house, and the wall of shielding house contains a large amount of shielding absorbing materials, can effectively prevent that X-ray from transmitting from scanning room.
Along with the continuous miniaturization of CT scanner, some CT scanner need to be released the shielding house of CT Room, and in emergency room, intensive care unit, even public ward is used, and realizes the other scanning of bed.At this moment, old scheme just can not meet the shielding protection demand of X-ray.
At present, the whole world first to release the scheme that the U.S. Neurologica company of mobile CT scanner adopts be to hang up plumbous curtain at scanner.Yet, in the situation that the space multistory angle of needs protection is constant, from the place in X-ray source more away from, the shielding material needing is just more, the weight of complete machine is just larger like this, is unfavorable for portable and moves.
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 on the X-ray tube of CT scanner, it has and is convenient to the slit that imaging X-ray passes through in the detector direction towards CT scanner; Described metallic plate is positioned over the detector behind of CT scanner, for absorbing, is not detected X-ray that device absorbs; Described scanning holes metal cylinder is arranged in the scanning holes of CT scanner, and has and be convenient to the slit that imaging X-ray passes through at the detectors place of CT scanner.
Preferably, the described X-ray tube metal cylinder metal cylinder that metal is made of attaching most importance to.
Preferably, described X-ray tube metal cylinder thickness is 1～5 millimeter.
Preferably, the described scanning holes metal cylinder metal cylinder that metal is made of attaching most importance to.
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 one end that CT scanner scanning holes is relative with entrance, and described shield glass is movable.
Preferably, described shield glass seals 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 that contains heavy metal.
Preferably, in the situation that not considering light transmission, described shield glass can substitute by heavy metal plate.
The present invention also provides a kind of CT scanner that can oneself shielding, comprise the X-ray tube for sending X-ray, detector, the scanning holes of reception X-ray, this CT scanner also comprises X-ray tube metal cylinder, metallic plate, wherein: described X-ray tube metal cylinder is enclosed within on the X-ray tube of CT scanner, it has and is convenient to the slit that imaging X-ray passes through in the detector direction towards CT scanner; Described metallic plate is positioned over the detector behind of CT scanner, for absorbing, is not detected X-ray that device absorbs; Described scanning holes metal cylinder is arranged in the scanning holes of CT scanner, and has the slit identical with detector width at the detectors place 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 one end that CT scanner scanning holes is relative with entrance, and described shield glass is movable.
Seldom, complete machine weight increases few the shielding material that the present invention uses, miniaturization and facilitation more, and X-ray spilling seldom, need not be confined to shielding house and use, can be applied in such as, 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.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, term " interior ", " outward ", " longitudinally ", " laterally ", " on ", orientation or the position relationship of the indication such as D score, " top ", " end " be based on orientation shown in the drawings or position relationship, be only the present invention for convenience of description rather than require the present invention with specific orientation structure and operation, therefore 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 on the X-ray tube of CT scanner, is opening a slit towards the detector direction of CT scanner.Described slit, for the outgoing of X-ray, is realized CT imaging.Described X-ray tube metal cylinder 10 metal cylinder that metal is made of attaching most importance to, such as lead, tungsten alloy cylinder, thickness is generally 1～5 millimeter.
Described metallic plate 20 is positioned over the detector behind of CT scanner, for absorbing, is not detected X-rays that device all absorbs.Described metallic plate 20 metallic plate that metal is made of attaching most importance to, 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 and is convenient to the slit that imaging X-ray passes through in the detector direction of CT scanner, and 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 is made such as tungsten alloy plate, stereotype etc., 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 being fixed on scanning holes shell remains static always, and the scanning holes metal cylinder 30 being fixed on rotating disk is rotated with rotating disk when work.
Described shield glass 40 is arranged on one end that CT scanner scanning holes is relative with entrance, for ABSORPTION AND SCATTERING X-ray.Described shield glass 40 is movable: only doing Cranial Computed Tomography scanning, while also not needing human body to pass whole scanning holes, described shield glass 40 seals; When needs human body passes scanning holes, during as scanning trunk, extremity, described shield glass 40 is opened.The glass of described shield glass 40 for containing heavy metal, such as lead glass, this shield glass 40 has light transmission, can improve the comfortableness of patient while scanning.In the situation that not considering light transmission, described shield glass 40 also can substitute by heavy metal plate.
Aspect radiation protection, for the X ray of same energy, the thickness of the shielding material needing 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 needing is just less; From x-ray source more away from, the area of the shielding material needing is just 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 approach the place, source of scattered x-ray as far as possible, to save the use of material, (general large-scale CT scanner and screening arrangement weight are in 2000kg left and right, the weight of similar mobile CT scanner and screening arrangement is in about 400kg, and the present invention can be by Weight control in 300kg).
Although the present invention is described with reference to current preferred embodiments; but those skilled in the art will be understood that; above-mentioned preferred embodiments is only used for illustrating the present invention; 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., within all should being included in the scope of the present invention.
Claims (10)
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 has and be convenient to the slit that imaging X-ray passes through in the detector direction towards CT scanner;
Described metallic plate is positioned over the detector behind of CT scanner, for absorbing, is not detected X-ray that device absorbs;
Described scanning holes metal cylinder is arranged in the scanning holes of CT scanner, and has and be convenient to the slit that imaging X-ray passes through at the detectors place of CT scanner.
2. CT scanner screening arrangement as claimed in claim 1, is characterized in that, the described X-ray tube metal cylinder metal cylinder that metal is made of attaching most importance to.
3. CT scanner screening arrangement as claimed in claim 2, 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, the described scanning holes metal cylinder metal cylinder that metal is made of attaching most importance to.
5. CT scanner screening arrangement as claimed in claim 4, is characterized in that, described scanning holes metal cylinder thickness is 1～5 millimeter.
6. CT scanner screening arrangement as claimed in claim 1, 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, also comprise shield glass, described shield glass is arranged on one end that CT scanner scanning holes is relative with entrance, and described shield glass is movable: described shield glass seals when not needing human body to pass whole scanning holes; Described shield glass is opened when needing human body to pass scanning holes.
8. CT scanner screening arrangement as claimed in claim 7, is characterized in that, described shield glass is the glass that contains heavy metal.
9. a CT scanner that can oneself shielding, comprises X-ray tube for sending X-ray, receives detector, scanning holes and the rotating disk of X-ray, 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 on the X-ray tube of CT scanner, and it has and be convenient to the slit that imaging X-ray passes through in the detector direction towards CT scanner;
Described metallic plate is positioned over the detector behind of CT scanner, for absorbing, is not detected X-ray that device absorbs;
Described scanning holes metal cylinder is arranged in the scanning holes of CT scanner, and has and be convenient to the slit that imaging X-ray passes through at the detectors place of CT scanner.
10. CT scanner as claimed in claim 9, is characterized in that, this CT scanner also comprises shield glass, and described shield glass is arranged on one end that CT scanner scanning holes is 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 |
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| 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 true CN103598895A (en) | 2014-02-26 |
| CN103598895B 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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Cited By (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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| 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
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
Cited By (5)
| 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 |
| WO2022011743A1 (en) * | 2020-07-17 | 2022-01-20 | 汕头市超声仪器研究所股份有限公司 | Method for reducing radiation of x-ray detection environment |
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| CN103598895B (en) | 2015-12-02 |
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