CN110090038A - A kind of CT spherical surface panel detector structure - Google Patents
A kind of CT spherical surface panel detector structure Download PDFInfo
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- CN110090038A CN110090038A CN201910371178.XA CN201910371178A CN110090038A CN 110090038 A CN110090038 A CN 110090038A CN 201910371178 A CN201910371178 A CN 201910371178A CN 110090038 A CN110090038 A CN 110090038A
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- basal plane
- detector
- support frame
- arc
- spherical surface
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- 239000000758 substrate Substances 0.000 claims description 7
- 238000002059 diagnostic imaging Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000013480 data collection Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
- A61B6/035—Mechanical aspects of CT
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
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- Life Sciences & Earth Sciences (AREA)
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- Radiology & Medical Imaging (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
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Abstract
The present invention relates to CT medical imaging fields, more particularly to a kind of CT spherical surface panel detector structure, including several mutually arranged detector sub-components, detector sub-component includes the support frame of strip, the two sides of support frame are connected with support plate, one end of support plate offers connecting hole, and the central axes of the connecting hole are perpendicular to support frame；The top surface of support frame as described above includes the arc basal plane positioned at middle part, and the two sides of arc basal plane are equipped with several side basal planes to arc basal planes tilted；The arc basal plane is higher than side basal plane, and the height of the side basal plane remoter apart from arc basal plane is lower；Detector module is connected on the arc basal plane, side basal plane；The detector module is towards the same centre of sphere；The present invention has the advantages that while guaranteeing that detector module is vertical with the ray that X-ray bulb issues, significantly reducing the gap in X-direction between two neighboring detector sub-component by the way that stair-stepping support frame is arranged.
Description
Technical field
The present invention relates to CT medical imaging field more particularly to a kind of CT spherical surface panel detector structures.
Background technique
Typical CT system is made of such as lower component: one be mounted with the rotary frame of X-ray bulb, a detector,
One week component rotated with rack of a set of data collection system and other circular patients, detector are arranged by multiple detector modules
Column form, and the collimator on each detector module is vertical with the ray that X-ray bulb issues.As shown in Fig. 2, X
For ray by patient body after the sending of X-ray bulb, detector absorbs the X-ray to decay after patient body, detector
Electric signal is converted by X-ray and is transferred to data collection system, and data collection system is transferred to after being handled electric signal
Computer is used for image reconstruction, final output image.
In recent years, the appearance of volume CT and Cone-Beam CT, causing the width of detector to be continuously increased within the scope of Z-direction, (Z-direction is i.e.
Scanning bed direction, shown in coordinate system as shown in figure 1, X, Y, Z hereinafter is the direction of coordinate system in Fig. 1), with detection
The increase of device Z-direction size, the design meeting of spherical surface detector is so that the gap in X-direction between adjacent detector modules constantly increases
Greatly, so as to cause the decline of image quality.The detector spherical surface schematic diagram being illustrated in figure 3 in prior art construction, centre of sphere X
Ray tube, wherein the X-direction in the corresponding CT system of equatorial line 3, latitude and longitude 4 represent a camber line on corresponding spherical surface, this side
Z-direction into corresponding CT system, detector are arranged in X direction by multiple detector sub-components 5, detector sub-component 5
Multiple detector modules 6 along Z-direction arrangement are equipped with, from figure 3, it can be seen that being located in the middle two neighboring detector subgroup
There are gaps between part 5, and are located in the middle gap maximum, and when the increase of Z-direction length, which can also constantly increase.
Summary of the invention
To solve the above problems, the present invention provides a kind of CT spherical surface panel detector structure, to reduce adjacent detector subgroup
Gap between part.
To achieve the goals above, technical scheme is as follows:
A kind of CT spherical surface panel detector structure, including several mutually arranged detector sub-components, detector sub-component includes item
The support frame of shape, the two sides of support frame are connected with support plate, and one end of support plate offers connecting hole, the axis of the connecting hole
Line is perpendicular to support frame；The top surface of support frame as described above includes the arc basal plane positioned at middle part, if the two sides of arc basal plane are equipped with
The dry side basal plane to arc basal planes tilted；The arc basal plane is higher than side basal plane, the side basal plane remoter apart from arc basal plane
Height is lower；Detector module is connected on the arc basal plane, side basal plane；The detector module is towards the same centre of sphere.
Further, the detector module includes the module carrier of L-type, offers and is used for and support frame on module carrier
The screw hole of connection.
Further, the detector module includes the substrate being fixed on module carrier, and dress posts scintillator in substrate,
Collimator is connected on scintillator, the collimator is made of multiple collimator pieces, scintillator and anti-
The connected face of scatter collimators is equipped with multiple grooves connecting with collimator piece or protrusion.
The present invention has the advantages that guaranteeing detector module and X-ray bulb hair by the way that stair-stepping support frame is arranged
While ray out is vertical, the gap in X-direction between two neighboring detector sub-component is significantly reduced.
Detailed description of the invention
Fig. 1 is the organigram of CT system in background technique；
Fig. 2 is the internal structure schematic diagram of CT system in Fig. 1；
Fig. 3 is detector spherical surface schematic diagram；
Fig. 4 is the organigram of detector sub-component in embodiment；
Fig. 5 is organigram of the detector sub-component relative to X-ray in embodiment；
Fig. 6 is the schematic exploded perspective view of Fig. 4；
Fig. 7 is two detector sub-component connection schematic diagrams in embodiment；
Fig. 8 is the detector spherical surface schematic diagram installed after the present embodiment support frame；
Fig. 9 is detector module organigram in embodiment；
Label declaration
X-ray bulb 1, detector 2, equatorial line 3, latitude and longitude 4, detector sub-component 5, detector module 6, substrate 7, scintillator
8, collimator 9, support frame 10, module carrier 11, support plate 12, connecting hole 13, arc basal plane 14, side basal plane 15, platform
Rank 16.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
The present embodiment proposes a kind of CT spherical surface panel detector structure, as shown in Fig. 4 to 9, including several mutually arranged spies
Device sub-component 5 is surveyed, detector sub-component 5 includes the support frame 10 of strip, and the two sides of support frame 10 are connected with support plate 12, is supported
One end of plate 12 offers connecting hole 13, and the central axes of the connecting hole 13 are perpendicular to support frame 10, and connecting hole 13 is for adjacent
The connection of detector sub-component 5；The top surface of support frame as described above 10 includes the arc basal plane 14 positioned at middle part, since the present embodiment is visited
Survey device 3 Z-direction width value it is little, therefore in the present embodiment the two sides of arc basal plane 14 be equipped with one it is inclined to arc basal plane 14
Side basal plane 15, arc basal plane 14 are higher than side basal plane 15, form step 16, the arc in arc basal plane 14 and 15 junction of side basal plane
Detector module 6 is connected on shape basal plane 14, side basal plane 15.As expansion, when practical application, if the Z-direction width mistake of detector 3
Greatly, the side basal plane 15 of 14 two sides of arc basal plane can be by multiple, and height difference is equally existed between adjacent edge basal plane 15, adjacent edge base
Step 16 is similarly formed between face 15, the side basal plane 15 remoter apart from arc basal plane 14, height is lower, and all side basal planes 15 are
It is tilted to 14 side of arc basal plane.Such design has both sides benefit, and one of benefit is: the detector on support frame 10
Module 6 is vertical with the X-ray that X-ray bulb 1 issues, so that detector has a higher plot quality out；The two of benefit
Be: the design of 10 top bar of support frame, 16 structure reduces the gap between adjacent detector sub-component 5, specifically such as Fig. 5 institute
Show, due to the presence of spheric curvature, the gap between adjacent detector sub-component 5 increases since side basal plane 15, and in arc
Reach maximum at 14 center of basal plane, although the present embodiment has gap, but compared to the detector ball of the prior art in Fig. 3
Face schematic diagram, it can be deduced that, the design of 10 hierarchic structure of support frame is so that the gap between adjacent detector sub-component 5 is subtracted
It is small.
To make detector module 6 and the connection of support frame 10 more convenient, the detector module 6 includes the mould of L-type
Block bracket 11 offers the screw hole for connecting with support frame 10 on module carrier 11.
The detector module 6 includes the substrate 7 being fixed on module carrier 11, and dress posts scintillator 8 in substrate 7, is dodged
It is connected with collimator 9 on bright body 8, the collimator 9 is made of multiple collimator pieces and (is not shown in the figure
Collimator piece), the face that scintillator 8 is connected with collimator 9 is equipped with multiple grooves connecting with collimator piece
Perhaps the design of groove or protrusion is conducive to being aligned/connecting for collimator piece and scintillator 8 on raised scintillator 8:
By tightening the tolerance of mechanical erection position, collimator 9 and groove on scintillator 8 or raised position can be accurate
Control is other in the micron-scale, and after the two tolerance all high precisions control, the degree of registration of the two can accomplish stringent control, when
After the tolerance of module level obtains control, tolerance of the entire detector 3 in global scope can equally be controlled.
Claims (3)
1. a kind of CT spherical surface panel detector structure, including several mutually arranged detector sub-components, it is characterised in that: detector
Sub-component includes the support frame of strip, and the two sides of support frame are connected with support plate, and one end of support plate offers connecting hole, described
The central axes of connecting hole are perpendicular to support frame；The top surface of support frame as described above includes the arc basal plane positioned at middle part, arc basal plane
Two sides are equipped with several side basal planes to arc basal planes tilted；The arc basal plane is higher than side basal plane, gets over apart from arc basal plane
The height of remote side basal plane is lower；Detector module is connected on the arc basal plane, side basal plane；The detector module direction
The same centre of sphere.
2. a kind of CT spherical surface panel detector structure as described in claim 1, it is characterised in that: the detector module includes L-type
Module carrier, the screw hole for connecting with support frame is offered on module carrier.
3. a kind of CT spherical surface panel detector structure as claimed in claim 2, it is characterised in that: the detector module includes fixing
Substrate on module carrier, dress posts scintillator in substrate, and collimator, the anti-scattering collimation are connected on scintillator
Device is made of multiple collimator pieces, and the face that scintillator is connected with collimator is equipped with multiple and anti-scattering and collimates
The groove or protrusion of device piece connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371178.XA CN110090038A (en) | 2019-05-06 | 2019-05-06 | A kind of CT spherical surface panel detector structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371178.XA CN110090038A (en) | 2019-05-06 | 2019-05-06 | A kind of CT spherical surface panel detector structure |
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| Publication Number | Publication Date |
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| CN110090038A true CN110090038A (en) | 2019-08-06 |
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| CN201910371178.XA Pending CN110090038A (en) | 2019-05-06 | 2019-05-06 | A kind of CT spherical surface panel detector structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022179A (en) * | 2020-09-03 | 2020-12-04 | 南京安科医疗科技有限公司 | Detector unit arrangement method of high-row-number CT detector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040227092A1 (en) * | 2003-05-13 | 2004-11-18 | Ge Medical Systems Global Technology Company, Llc | Collimator assembly for computed tomography system |
| CN1717146A (en) * | 2004-06-29 | 2006-01-04 | 通用电气公司 | Detector for radiation imaging systems |
| JP2006006777A (en) * | 2004-06-29 | 2006-01-12 | Hitachi Medical Corp | X-ray ct apparatus |
| CN105342635A (en) * | 2014-12-12 | 2016-02-24 | 沈阳东软医疗系统有限公司 | Detector system for CT machine |
| CN108836376A (en) * | 2018-06-29 | 2018-11-20 | 沈阳东软医疗系统有限公司 | Detector module, detector and Medical Devices |
| WO2019047054A1 (en) * | 2017-09-06 | 2019-03-14 | Shenzhen United Imaging Healthcare Co., Ltd. | Ct detector module and heat dissipation structure |
-
2019
- 2019-05-06 CN CN201910371178.XA patent/CN110090038A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040227092A1 (en) * | 2003-05-13 | 2004-11-18 | Ge Medical Systems Global Technology Company, Llc | Collimator assembly for computed tomography system |
| CN1717146A (en) * | 2004-06-29 | 2006-01-04 | 通用电气公司 | Detector for radiation imaging systems |
| JP2006006777A (en) * | 2004-06-29 | 2006-01-12 | Hitachi Medical Corp | X-ray ct apparatus |
| CN105342635A (en) * | 2014-12-12 | 2016-02-24 | 沈阳东软医疗系统有限公司 | Detector system for CT machine |
| WO2019047054A1 (en) * | 2017-09-06 | 2019-03-14 | Shenzhen United Imaging Healthcare Co., Ltd. | Ct detector module and heat dissipation structure |
| CN108836376A (en) * | 2018-06-29 | 2018-11-20 | 沈阳东软医疗系统有限公司 | Detector module, detector and Medical Devices |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112022179A (en) * | 2020-09-03 | 2020-12-04 | 南京安科医疗科技有限公司 | Detector unit arrangement method of high-row-number CT detector |
| CN112022179B (en) * | 2020-09-03 | 2022-06-21 | 南京安科医疗科技有限公司 | Detector unit arrangement method of high-row-number CT detector |
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Application publication date: 20190806 |
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