CN203873777U - X-ray filter of computed tomography (CT) system - Google Patents
X-ray filter of computed tomography (CT) system Download PDFInfo
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- CN203873777U CN203873777U CN201420164168.1U CN201420164168U CN203873777U CN 203873777 U CN203873777 U CN 203873777U CN 201420164168 U CN201420164168 U CN 201420164168U CN 203873777 U CN203873777 U CN 203873777U
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- filter
- opening
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- curved surface
- ray
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Abstract
The utility model relates to the technical field of computed tomography (CT) systems, in particular to an X-ray filter of a CT system. Two waist portions of a trapezoid platform are respectively provided with a protruding step used for fixing, and an arc-shaped opening used for filtering emergent light is formed in the upper surface of the trapezoid platform. The X-ray filter of the CT system is characterized in that the arc-shaped opening is a smooth arc-shaped curved surface, and the opening of the arc-shaped curved surface is gradually and continuously increased from one side to the other side of the trapezoid platform in the thickness direction of the trapezoid platform. Due to the settings, before and during the tomography process, the filter is moved in the direction parallel to the thickness direction of the trapezoid platform of the filter according to the needed shape and size of the opening, and useless rays can be filtered out to the maximum extent by moving the needed curved surface into the plane of a ray beam. The filtering emergent surface of the X-ray filter of the CT system achieves a continuously adjustable effect, and the size of the opening of the filter can be dynamically adjusted according to the shape and size of an examined human body only by using the filter in the CT process.
Description
Technical field
This utility model relates to computed tomograph scanner system, i.e. the technical field of CT instrument.
Background technology
The image link of computed tomograph scanner system (CT) is mainly comprised of ray tube, ray filter, collimator and detector.Filter wherein can effectively reduce the x rayed dosage that examinee accepts in the situation that not affecting picture quality.Along with popularizing that CT examination is applied in clinical medicine, how to reduce more efficiently exposure dose and become the popular direction that current CT manufactured and used area research.
In industry, some more common modes have at present:
1, increase the thickness of metal forming filtration layer, can effectively change the line matter of X-ray, remove detecting useless soft rays.
2, the many groups of increase morphological filter, have effectively reduced and have received inspection region roentgendosis in addition.But traditional CT filter uses the filter of two or more different openings width, according to person under inspection's build size, in a plurality of filtrations, wherein select a use that size is approaching in use.But this problem of bringing is, person under inspection's size is different, and human body is not an absolute circle yet, but more close to ellipse.Can not reach with the filter of several sizes the Perfect Matchings to all persons under inspection like this, more cannot meet the dynamic non-circular profile that is equipped with human body in inferior scanning.
Utility model content
This utility model object is to propose the higher adjustable filter of the continuous shape of integrative electrodeless of a kind of integrated level, can in scanning process, according to body shape, adjust to easily optimum coupling, can effectively further reduce person under inspection's X-ray exposure dose.
This utility model comprises a bucking ladder, at two waists of bucking ladder, is provided for respectively the protrusion step of fixing, and is provided for filtering the arc opening of bright dipping at the upper surface of bucking ladder, it is characterized in that described arc opening is a level and smooth arc-shaped curved surface; Along bucking ladder thickness direction, the opening from a side of bucking ladder to the arc-shaped curved surface of opposite side strengthens gradually continuously.
Due to above setting, before scanning and in process, opening shape size as required, along the bucking ladder thickness direction of filter moving filter device abreast, the curved surface of needs is moved in the plane of beam and just can reach the filtration to useless ray to greatest extent, the bright finish that filters out of the present utility model has reached a continuously adjustable effect, in CT scan process, only need to adopt this filter, just can dynamically adjust filter opening size according to the geomery of being examined human body.
Superiority of the present utility model is embodied in:
1, in CT scan process, can dynamically adjust filter opening size according to the geomery of being examined human body.
2, the opening size of adjusting in real time can reach the attenuating of X ray to greatest extent of more pressing close to body configuration.
3, can make the X-ray exposure dose that person under inspection accepts reduce significantly, make CT examination safer reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is bowing to view of Fig. 1.
The specific embodiment
As shown in Figure 1, 2, the x-ray filter body of computed tomograph scanner system is designed to a bucking ladder 1, two waists at bucking ladder 1 are provided for respectively the protrusion step 2,3 of fixing, and are provided for filtering the arc opening 4 of bright dipping at the upper surface of bucking ladder 1.
This arc opening 4 is a level and smooth arc-shaped curved surface, and along the thickness direction of bucking ladder 1, and the opening from a side of bucking ladder 1 to the arc-shaped curved surface of opposite side strengthens gradually continuously.
Claims (1)
1. the x-ray filter of a computed tomograph scanner system, comprise a bucking ladder, two waists at bucking ladder are provided for respectively the protrusion step of fixing, at the upper surface of bucking ladder, be provided for filtering the arc opening of bright dipping, it is characterized in that described arc opening is a level and smooth arc-shaped curved surface; Along bucking ladder thickness direction, the opening from a side of bucking ladder to the arc-shaped curved surface of opposite side strengthens gradually continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164168.1U CN203873777U (en) | 2014-04-08 | 2014-04-08 | X-ray filter of computed tomography (CT) system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164168.1U CN203873777U (en) | 2014-04-08 | 2014-04-08 | X-ray filter of computed tomography (CT) system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203873777U true CN203873777U (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420164168.1U Expired - Fee Related CN203873777U (en) | 2014-04-08 | 2014-04-08 | X-ray filter of computed tomography (CT) system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203873777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103932729A (en) * | 2014-04-08 | 2014-07-23 | 江苏中惠医疗科技股份有限公司 | X-ray filter of computer tomography system |
-
2014
- 2014-04-08 CN CN201420164168.1U patent/CN203873777U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103932729A (en) * | 2014-04-08 | 2014-07-23 | 江苏中惠医疗科技股份有限公司 | X-ray filter of computer tomography system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191029 Address after: 100176 8 Building 1 Floor, No. 11 Kangding Street, Daxing District, Beijing Economic and Technological Development Zone Patentee after: Sanovisheng Technology (Beijing) Co., Ltd. Address before: 225200 No. 188 Jianghuai Road, Jiangdu District, Jiangsu, Yangzhou Patentee before: Sinoways Medical Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200319 Address after: 225200 No. 188 Jianghuai Road, Jiangdu District, Jiangsu, Yangzhou Patentee after: Jiangsu Sinoways (Zhonghui) Medical Technology Co.,Ltd. Address before: 100176 8 Building 1 Floor, No. 11 Kangding Street, Daxing District, Beijing Economic and Technological Development Zone Patentee before: SAINUO WEISHENG TECHNOLOGY (BEIJING) Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20200408 |