CN201725599U - Medical treatment X-ray coherent scattering combined type multi-level collimator - Google Patents
Medical treatment X-ray coherent scattering combined type multi-level collimator Download PDFInfo
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- CN201725599U CN201725599U CN2010202844914U CN201020284491U CN201725599U CN 201725599 U CN201725599 U CN 201725599U CN 2010202844914 U CN2010202844914 U CN 2010202844914U CN 201020284491 U CN201020284491 U CN 201020284491U CN 201725599 U CN201725599 U CN 201725599U
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- collimator
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Abstract
The utility model discloses a medical treatment X-ray coherent scattering combined type multi-level collimator, which is characterized in that multi-level barrel-shaped collimator units are sleeved in a fixed shell in a gradient sequence way, the outer wall of each collimator unit is provided with a rubber ring groove and inlaid with a rubber expansion ring, the end face of each collimator is inlaid with a lead ring shielding layer, and the middle part of each collimator is provided with a ray via hole. By inlaying the lead shielding layers as retention devices on sleeved barrels and using multi-level collimation modules with continuous gradient to realize the combined type collimator, the collimator is easy to dismount and combine, can meet the requirement on the length of the collimator, simultaneously shield scattering rays and reduce elastic scattering rays, and is convenient to dismount and mount end collimation via holes with different shapes so as to meet the requirements on different wire harness shapes.
Description
Technical field
The utility model discloses a kind of medical x-ray coherent scattering combined multi-stage collimating apparatus, utilizes x ray coherent scattering line to carry out imaging, belongs to medical science radiant image and detection technique field.
Background technology
In medical science radiant image technical field, in order to improve the image quality of x ray coherent scattering line, lower of the influence of spuious ray to imaging effect, require to use collimating apparatus that radiographic source is focused on, focus on wire harness and be generally less than 2mm; Focusing effect depends on that collimator material is to the receptivity of high-energy ray with to the shield effectiveness of unnecessary ray.Existing collimating apparatus all is straight cylindrical design, and purpose is the wire harness of restriction x ray; Because the radius of wire harness is bigger, spuious ray also influences seriously, because the limitation of existing process technology, the aperture and the length limited of the collimating apparatus processing of tungsten, lead material, generally can't processing length be lower than the collimating apparatus of 2mm, so also just can't avoid of the influence of collimating apparatus inwall ray elastic scattering to imaging effect above the 100mm aperture.
Summary of the invention
The utility model discloses a kind of medical x-ray coherent scattering combined multi-stage collimating apparatus, satisfy the requirement on the collimating apparatus length, shield spuious ray simultaneously, lower the elastic scattering line, and be convenient to the difform end collimation of dismounting via hole, satisfy the requirement of various different beam shapes.
The technical solution of the utility model is in the following way:
The collimating apparatus unit of multistage tubular is that gradient is sleeved in the stationary housing in proper order, the outer wall of each collimating apparatus unit is provided with the cushion rubber groove and is inlaid with the rubber packing, the end face of collimating apparatus unit is inlaid with the lead ring screen layer, and the middle part of collimating apparatus unit offers the ray via hole;
Described multistage collimating apparatus is characterized in that:
The inwall of example of primary collimator unit is 45 degree inclined-planes;
The inwall of secondary collimator unit is 20 degree inclined-planes;
The inwall of final stage collimating apparatus unit is 10 degree inclined-planes; And the middle part is provided with the via hole of the solid shape of 5mm-50mm length.
Each collimating apparatus unit processes different inner wall shape according to different positions, except that final stage collimating apparatus unit, all adopts the design of the embedded lead shield of aluminium alloy sleeve barrel.
Collimation unit inner chamber is the inclined-plane of same gradient, and the collimation unit of endpiece also can be processed into shape of slit according to the processing of beam diameter size, is convenient to different analysis imaging circumstances and uses.
The utility model in use, X ray enters collimating apparatus in the wire harness mode that the cross section is not more than as the inlet area of Fig. 1.The ray of propagating by via hole will not absorbed by the barrel of elementary collimation unit a, and the lead ring that is embedded into formula simultaneously stops.To be propagated in the barrel of unit by the x ray of plumbous scattering, and be absorbed by unit barrel secondary, remaining scattered ray will the reflected back radiographic source, can not propagated forward.Secondary collimation unit b repeats stopping and absorption process of elementary collimation unit a owing to be the compression beam of gradient, so the barrel that unnecessary ray can collimated unit absorb well, lower effectively ray scattering and scattered ray forwards to propagation.Behind the preceding half section limit bundle through final stage collimating apparatus unit c, ray is propagated forward after being collimated by via hole.
This circulation way when radiogenic source point and via hole are out of line, also can collimate ray effectively.
In addition, because the collimation unit of tandem type connects, ray is stopped that effectively scattered ray is absorbed effectively.Clean beam behind the collimation is provided admirably.
Good effect of the present utility model is: adopt the embedded lead shield layer of sleeve as retention device, use has the multistage collimating module of continuous gradient, realize the combined type collimating apparatus, disassemble easily and make up, can satisfy the requirement on the collimating apparatus length, shield spuious ray simultaneously, lower the elastic scattering line, and be convenient to the difform end collimation of dismounting via hole, satisfy the requirement of various different beam shapes.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
1, stationary housing; 2, rubber packing; 3, collimation unit; 4, lead ring; 5, via hole.
Embodiment
Referring to Fig. 1, be set with three grades of collimation unit 3 of elementary a, secondary b and final stage c by rubber packing 2 in stationary housing 1 inboard, every grade of collimating apparatus unit sleeve 3 is annular barrel, internal diameter can be between 0.5mm-10mm, the end face of each cylindrical shell is inlaid with lead ring 4, and the middle part of cylindrical shell offers ray via hole 5; The inwall cutting a=45 degree inclined-plane of elementary a collimation unit 3, secondary b collimating apparatus unit 3 inwalls cutting 20 degree inclined-planes, final stage c collimating apparatus unit 3 can process the via hole 5 less than the solid shape of inclined-plane and 5mm-50mm length in 10 degree as required.
Each collimating apparatus unit processes different inner wall shape according to different positions, all adopts the design of the embedded lead shield of aluminium alloy sleeve barrel.
When the utility model used, length and aperture shape according to the suitable final stage collimating apparatus unit of designing requirement selection fitted tightly with radiogenic pelvic outlet plane, can constitute inside ray is well shielded, the outside applied environment that collimates fully more than base.
Claims (2)
1. medical x-ray coherent scattering combined multi-stage collimating apparatus is characterized in that:
The collimating apparatus unit (3) of multistage tubular is sleeved in the stationary housing (1) for the gradient order, the outer wall of each collimating apparatus unit (3) is provided with the cushion rubber groove and is inlaid with rubber packing (2), the end face of collimating apparatus unit (3) is inlaid with lead ring (4) screen layer, and the middle part of collimating apparatus unit (3) offers ray via hole (5).
2. multistage collimating apparatus according to claim 1 is characterized in that:
The inwall of example of primary collimator unit (3) is 45 degree inclined-planes;
The inwall of secondary collimator unit (3) is 20 degree inclined-planes;
The inwall of final stage collimating apparatus unit (3) is 10 degree inclined-planes; The middle part is provided with the via hole (5) of the solid shape of 5mm-50mm length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202844914U CN201725599U (en) | 2010-08-04 | 2010-08-04 | Medical treatment X-ray coherent scattering combined type multi-level collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202844914U CN201725599U (en) | 2010-08-04 | 2010-08-04 | Medical treatment X-ray coherent scattering combined type multi-level collimator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725599U true CN201725599U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202844914U Expired - Fee Related CN201725599U (en) | 2010-08-04 | 2010-08-04 | Medical treatment X-ray coherent scattering combined type multi-level collimator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201725599U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068225A (en) * | 2017-04-13 | 2017-08-18 | 云南电网有限责任公司电力科学研究院 | A kind of lossless movable detecting platform ray shielding device of X-ray |
| CN107485801A (en) * | 2017-10-09 | 2017-12-19 | 深圳市奥沃医学新技发展有限公司 | One kind collimation body and treatment head |
| CN107890612A (en) * | 2017-12-05 | 2018-04-10 | 西安大医数码科技有限公司 | One kind focuses on radiotheraphy device and equipment |
| EP3373307A4 (en) * | 2015-11-06 | 2019-07-03 | Nuctech Company Limited | Beam-guiding apparatus and radiation checking device comprising beam-guiding apparatus |
| CN113687408A (en) * | 2021-08-25 | 2021-11-23 | 浙江省农业科学院 | Collimator and device for constructing uniform irradiation field of rod-shaped radioactive source |
-
2010
- 2010-08-04 CN CN2010202844914U patent/CN201725599U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3373307A4 (en) * | 2015-11-06 | 2019-07-03 | Nuctech Company Limited | Beam-guiding apparatus and radiation checking device comprising beam-guiding apparatus |
| US10446288B2 (en) | 2015-11-06 | 2019-10-15 | Nuctech Company Limited | Ray beam guiding device and ray inspection apparatus having the same |
| CN107068225A (en) * | 2017-04-13 | 2017-08-18 | 云南电网有限责任公司电力科学研究院 | A kind of lossless movable detecting platform ray shielding device of X-ray |
| CN107068225B (en) * | 2017-04-13 | 2023-09-22 | 云南电网有限责任公司电力科学研究院 | X-ray nondestructive mobile detection platform ray shielding device |
| CN107485801A (en) * | 2017-10-09 | 2017-12-19 | 深圳市奥沃医学新技发展有限公司 | One kind collimation body and treatment head |
| WO2019072069A1 (en) * | 2017-10-09 | 2019-04-18 | 深圳市奥沃医学新技术发展有限公司 | Collimator and treatment head |
| CN107485801B (en) * | 2017-10-09 | 2021-04-23 | 深圳市奥沃医学新技术发展有限公司 | Collimation body and treatment head |
| CN107890612A (en) * | 2017-12-05 | 2018-04-10 | 西安大医数码科技有限公司 | One kind focuses on radiotheraphy device and equipment |
| CN113687408A (en) * | 2021-08-25 | 2021-11-23 | 浙江省农业科学院 | Collimator and device for constructing uniform irradiation field of rod-shaped radioactive source |
| CN113687408B (en) * | 2021-08-25 | 2024-03-15 | 浙江省农业科学院 | Collimator and device for constructing uniform irradiation field of rod-shaped radioactive source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20110804 |