CN108020569A - A kind of collimator apparatus and the CT machines comprising the device - Google Patents
A kind of collimator apparatus and the CT machines comprising the device Download PDFInfo
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- CN108020569A CN108020569A CN201810049836.9A CN201810049836A CN108020569A CN 108020569 A CN108020569 A CN 108020569A CN 201810049836 A CN201810049836 A CN 201810049836A CN 108020569 A CN108020569 A CN 108020569A
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- 230000001360 synchronised effect Effects 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 abstract description 10
- 230000005855 radiation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
-
- 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
-
- 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
- A61B6/06—Diaphragms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/10—Different kinds of radiation or particles
- G01N2223/101—Different kinds of radiation or particles electromagnetic radiation
- G01N2223/1016—X-ray
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/316—Accessories, mechanical or electrical features collimators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/317—Accessories, mechanical or electrical features windows
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/323—Accessories, mechanical or electrical features irradiation range monitor, e.g. light beam
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- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
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- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Theoretical Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
A kind of CT machines the present invention relates to collimator apparatus and comprising the device,Belong to collimating apparatus technical field,A kind of collimator apparatus includes the collimation foreboard for being oppositely arranged and being provided with center window and collimation back plate,The collimation foreboard is equipped with preceding collimation mechanism,The collimation back plate is equipped with rear collimation mechanism,The preceding collimation mechanism is identical with the structure of rear collimation mechanism,And both are vertically arranged,The preceding collimation mechanism includes drive component and collimator assembly,The present invention realizes the width adjusting of window by preceding collimation mechanism,The length adjustment of window is realized by rear collimation mechanism,Window opening degree flexible adjustment,At the same time,Collimator assembly movement is driven by drive component,Equilibrium is contributed to be applied to the first collimation axis,The driving force at the second collimation axis both ends,To realize that the first collimation block and the second collimation block are steady,Movement at the uniform velocity,Improve operational reliability,It is easy to commercialization,In addition,There is manual actuation and electric drive,It is highly practical.
Description
Technical field
The invention belongs to collimating apparatus technical field, relates in particular to a kind of collimator apparatus and the CT comprising the device
Machine.
Background technology
Radioactive ray CT system is widely used in each medical institutions and industrial nondestructive testing.In medical institutions, to by
Some region of inspection person carries out three-dimensional imaging, to help clinician to carry out accurate medical diagnosis to person under inspection；In industrial nothing
In damage detection, x-ray bombardment is carried out to checked object, the 3-D view of checked object is obtained, can clearly judge its internal structure
Or damage location, and required data can be measured.
In radioactive ray CT system, produce the radiation tube of pyramidal cone beam of radiation and the detector of detection radioactive ray surrounds quilt
The rotation of object pivot or checked object itself rotation are examined, collimation is provided with generally between radiation tube and person under inspection
Device, constrains the scope for the X-ray that radiation tube emits, it is unnecessary on the one hand to reduce by adjusting collimator slit width
Scattering, formed better image quality；On the other hand in medical system, wound of the unnecessary ray to human body can be reduced
Evil.
At present, the light flashboard (arc panel or tablet) of collimater is typically mounted on line slideway, by lead screw transmission into
Row movement, to realize the width control system to radiation beams, still, is answered using the structure of lead screw transmission control light flashboard movement
Miscellaneous, occupied space is big, and cost is higher, concurrently there are resistance of motion imbalance, causes operation to have some setbacks or run a period of time
After will deform, poor reliability the problems such as.
The content of the invention
For a variety of deficiencies of the prior art, to solve the above-mentioned problems, it is proposed that a kind of collimator apparatus and include the dress
The CT machines put.
To achieve the above object, the present invention provides following technical solution：
A kind of collimator apparatus, including be oppositely arranged and the collimation foreboard and collimation back plate of window, the standard are provided with center
Straight foreboard is equipped with preceding collimation mechanism, and the collimation back plate is equipped with rear collimation mechanism, the preceding collimation mechanism and rear collimation machine
The structure of structure is identical, and both are vertically arranged, and end to end side plate is equipped between collimation foreboard and the collimation back plate, to enclose
Into the cavity for accommodating preceding collimation mechanism and rear collimation mechanism；
The preceding collimation mechanism includes drive component and collimator assembly, the driving component include motor, the first collimation axis,
Second collimation axis and synchronous belt, the output terminal of the motor and the first collimation axis connection, first collimation axis and the second collimation
Axis is arranged at intervals along the length direction of window, and the synchronous belt connects the first collimation axis and the second collimation axis respectively, and described the
The end of two collimation axis is connected with manual knob, and the collimator assembly includes guide rail, the first collimation block and the second collimation block, described
Guide rail is set along the width of window, and the first collimation block and the second collimation block are set each along the length direction of window
Put, and both end respectively with synchronous band connection with realize synchronous backward move.
Further, the both ends of first collimation axis are equipped with clutch shaft bearing and driving wheel, and the clutch shaft bearing passes through
One bearing block is connected with collimation foreboard, and the both ends of second collimation axis are equipped with second bearing and driven wheel, second axis
Hold and be connected by second bearing seat and collimation foreboard, the driving wheel and driven wheel pass through synchronous band connection.
Further, collimation axis is equipped with the first bearing seat and corresponds to clutch shaft bearing away from adjustment component, the collimation foreboard
Strip hole is equipped with seat, the strip hole is set along the width of window, is internally provided with connection first bearing seat and standard
The fastening bolt of straight foreboard.
Further, the collimation axis includes adjusting seat and adjusting bolt, the adjusting seat and collimation foreboard away from adjustment component
It is connected, the first bearing seat is equipped with the threaded hole with adjusting bolt thread fitting, and the adjusting bolt runs through adjusting seat simultaneously
In embedded threaded hole.
Further, the end of the first collimation block and the second collimation block is equipped with take-up housing, and the take-up housing is equipped with
The sliding block slided along guide rail, the take-up housing pass through clamping plate and synchronous band connection.
Further, the motor, manual knob are respectively positioned on the outside of the cavity that side plate surrounds, positioned at the second collimation block end
Take-up housing is equipped with sensing chip, and the side plate is equipped with sensor.
Further, the sensor is equipped with 2, and 2 sensors are located at the middle part and end of side plate respectively.
Further, the width interval of the first collimation axis in rear collimation mechanism and the second collimation axis along window
Set.
Further, 2 lasers are additionally provided with the side plate, and 2 lasers are located at the length and width of window respectively
At center.
A kind of CT machines, include above-mentioned collimator apparatus.
The beneficial effects of the invention are as follows：
The width adjusting of window is realized by preceding collimation mechanism, the length adjustment of window, window are realized by rear collimation mechanism
Mouth opening degree flexible adjustment, meanwhile, collimator assembly movement is driven by drive component, contributes to equilibrium to be applied to the first collimation
Axis, the driving force at the second collimation axis both ends, to realize that the first collimation block and the second collimation block be steady, movement at the uniform velocity, improve fortune
Row reliability, is easy to commercialization, in addition, there is manual actuation and electric drive, it is highly practical.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structure diagram of preceding collimation mechanism；
Fig. 3 is structure diagram at A in Fig. 2；
Fig. 4 is the structure diagram of rear collimation mechanism.
In attached drawing：1- collimations foreboard, 2- collimations back plate, 3- windows, 4- lasers, 5- motors, the first collimation axis of 6-, 7- the
Two collimation axis, 8- synchronous belts, 9- guide rails, 10- first collimate block, 11- second collimates block, 12- manual knobs, 13- clutch shaft bearings
Seat, 14- driving wheels, 15- second bearing seats, 16- driven wheels, 17- collimation axis adjust spiral shell away from adjustment component, 18- adjusting seats, 19-
Bolt, 20- fastening bolts, 21- take-up housings, 22- clamping plates, 23- side plates, 24- sensing chips, 25- sensors, the first collimation axis of 26-,
The second collimation axis of 27-, 28- first collimate block, 29- second collimates block.
Embodiment
It is right with reference to the attached drawing of the present invention in order to make those skilled in the art more fully understand technical scheme
Technical scheme carries out clear, complete description, and based on the embodiment in the application, those of ordinary skill in the art exist
The other similar embodiments obtained on the premise of not making creative work, should all belong to the scope of the application protection.
In addition, the direction word mentioned in following embodiments, such as " on " " under " " left side " " right side " etc. is only the direction of refer to the attached drawing, because
This, the direction word used is for illustrative and not limiting the invention.
Embodiment one：
As shown in Figure 1, a kind of collimator apparatus, including be oppositely arranged and the collimation foreboard 1 and collimation of window 3 are provided with center
Back plate 2, when the collimator apparatus is applied to CT machines, radiation beams pass through from window 3.The collimation foreboard 1 is equipped with preceding standard
Straight mechanism, for adjusting the width of window 3, the collimation back plate 2 is equipped with rear collimation mechanism, for adjusting the length of window 3,
Meanwhile preceding collimation mechanism is identical with the structure of rear collimation mechanism, and both are vertically arranged.In addition, the collimation foreboard 1 and collimation
End to end side plate 23 is equipped between back plate 2, to surround the cavity for accommodating preceding collimation mechanism and rear collimation mechanism, that is,
Say, side plate 23 joins end to end positioned at the periphery of collimation foreboard 1 and collimation back plate 2 and side plate 23.
As shown in Figs. 1-3, the preceding collimation mechanism includes drive component and collimator assembly, wherein, the driving component bag
Include motor 5, the first collimation axis 6, the second collimation axis 7 and synchronous belt 8,6 and second collimation axis 7 of the first collimation axis is along window
3 length direction is arranged at intervals.The both ends of first collimation axis 6 are equipped with clutch shaft bearing and driving wheel 14, meanwhile, first axle
Hold and be connected by first bearing seat 13 with collimation foreboard 1, that is to say, that driving wheel 14 is equipped with 2, and the first collimation axis 6 can be opposite
Rotated in first bearing seat 13.The both ends of second collimation axis 7 are equipped with second bearing and driven wheel 16, the second bearing
It is connected by second bearing seat 15 and collimation foreboard 1, that is to say, that driven wheel 16 is equipped with 2, and the second collimation axis 7 can be relative to
Second bearing seat 15 rotates.Meanwhile the driving wheel 14 and driven wheel 16 are connected by synchronous belt 8 and rotated synchronously with realizing,
That is synchronous belt 8 is set to 2, equilibrium is contributed to be applied to the first collimation axis 6, the driving force at 7 both ends of the second collimation axis.
The output terminal of the motor 5 is connected by shaft coupling with the first collimation axis 6, that is to say, that motor 5 can drive first
Collimation axis 6, the second collimation axis 7 rotate synchronously, meanwhile, in order to improve the practicality of the collimator apparatus, second collimation axis 7
End be connected with manual knob 12, when disconnecting 5 power supply of motor, operating personnel turn manual knob 12 can also drive it is first accurate
D-axis 6, the second collimation axis 7 rotate synchronously, that is to say, that the collimator apparatus has been provided simultaneously with manual actuation and electric drive work(
Energy.Meanwhile the motor 5, manual knob 12 are respectively positioned on the outside of the cavity that side plate 23 surrounds.
In addition, for the ease of adjusting the spacing of the first collimation axis 6, the second collimation axis 7, it is equipped with the first bearing seat 13
Collimation axis away from adjustment component 17, meanwhile, the bottom of second bearing seat 15 is connected with collimation foreboard 1.As shown in figure 3, the collimation
Wheelbase adjustment component 17 includes adjusting seat 18 and adjusting bolt 19, and bottom and the collimation foreboard 1 of the adjusting seat 18 are connected, described
First bearing seat 13 is equipped with threaded hole with 19 thread fitting of adjusting bolt, and the adjusting bolt 19 is through adjusting seat 18 and embedding
Enter in threaded hole, that is to say, that drive first bearing seat 13 to move by tightening or loosening adjusting bolt 19, change clutch shaft bearing
Seat 13, the spacing of second bearing seat 15, and then adjust the first collimation axis 6, the spacing of the second collimation axis 7.Meanwhile for the ease of
One bearing block 13 moves, and the collimation foreboard 1 corresponds to is equipped with strip hole at first bearing seat 13, and the strip hole is along window 3
Width set, be internally provided with connection first bearing seat 13 and collimate the fastening bolt 20 of foreboard 1, that is to say, that the
One bearing block 13 is moved by guiding of strip hole, after its fine position, is connected by fastening bolt 20 and collimation foreboard 1
Connect.
The collimator assembly includes guide rail 9, first and collimates block 10 and second collimating block 11, and the guide rail 9 is along window 3
Width is set, and the first collimation block 10 and second collimates block 11 and set each along the length direction of window 3, and both
End is equipped with take-up housing 21, that is to say, that the first collimation block 10, second collimates block 11, the first collimation axis 6 and the second collimation axis
7 are arranged in parallel.The first collimation block 10 and second collimates block 11 and is set to high density material, such as tungsten, lead material.The cunning
Block 21 is equipped with the sliding block slided along guide rail 9, meanwhile, the take-up housing 21 is connected by clamping plate 22 with synchronous belt 8, with reality
Existing first collimation block 10 and second collimates the movement of 11 synchronous backward of block.That is, the first collimation axis 6, the second collimation axis 7 are synchronous
Rotate, drive the first collimation block 10 and second to collimate the movement of 11 synchronous backward of block, to realize the width adjusting of window 3.For reality
When monitor the minimum and maximum opening degree of 3 width of window, the take-up housing 21 positioned at the second collimation block 11 end is equipped with 2 sensings
Piece 24, and 2 sensing chips 24 are located at the both ends of take-up housing 21 respectively, corresponding, the side plate 23 is equipped with 2 sensors
25, and 2 sensors 25 are located at the middle part and end of side plate 23 respectively.
As shown in Figure 1 and Figure 4, the first collimation axis 26 in rear collimation mechanism and the second collimation axis 27 are along window 3
Width be arranged at intervals, correspondingly, in rear collimation mechanism first collimation block 28 and second collimate block 29 each along
The width of window 3 is set.First collimation axis 26, the second collimation axis 27 rotate synchronously, and drive the first collimation block 28 and second
The movement of 29 synchronous backward of block is collimated, to realize the length adjustment of window 3.That is, preceding collimation mechanism and rear collimation mechanism are only
Vertical work, is independent of each other.In addition, 2 lasers 4 are additionally provided with the side plate 23, and 2 lasers 4 are respectively positioned at window 3
At length and width center, to the center of anchor window 3.
The present invention is described in detail above, it is described above, it is only the preferred embodiments of the invention, when cannot
Limit the scope of the present invention, i.e., it is all to make equivalent changes and modifications according to the application scope, it all should still belong to covering scope of the present invention
It is interior.
Claims (10)
- A kind of 1. collimator apparatus, it is characterised in that including be oppositely arranged and be provided with center window (3) collimation foreboard (1) and Back plate (2) is collimated, the collimation foreboard (1) is equipped with preceding collimation mechanism, and the collimation back plate (2) is equipped with rear collimation mechanism, The preceding collimation mechanism is identical with the structure of rear collimation mechanism, and both are vertically arranged, the collimation foreboard (1) and collimation back plate (2) end to end side plate (23) is equipped between, to surround the cavity for accommodating preceding collimation mechanism and rear collimation mechanism；The preceding collimation mechanism includes drive component and collimator assembly, and the driving component includes motor (5), the first collimation axis (6), the second collimation axis (7) and synchronous belt (8), the output terminal of the motor (5) are connected with the first collimation axis (6), and described first Collimation axis (6) and the second collimation axis (7) are arranged at intervals along the length direction of window (3), and the synchronous belt (8) connects the respectively One collimation axis (6) and the second collimation axis (7), the end of second collimation axis (7) are connected with manual knob (12), the collimation Component includes guide rail (9), the first collimation block (10) and the second collimation block (11), width side of the guide rail (9) along window (3) To setting, the first collimation block (10) and the second collimation block (11) are set each along the length direction of window (3), and both End is connected with synchronous belt (8) to realize that synchronous backward moves respectively.
- 2. a kind of collimator apparatus according to claim 1, it is characterised in that the both ends of first collimation axis (6) are all provided with There are a clutch shaft bearing and driving wheel (14), the clutch shaft bearing is connected by first bearing seat (13) with collimation foreboard (1), and described the The both ends of two collimation axis (7) are equipped with second bearing and driven wheel (16), the second bearing by second bearing seat (15) with Collimate foreboard (1) to be connected, the driving wheel (14) and driven wheel (16) are connected by synchronous belt (8).
- 3. a kind of collimator apparatus according to claim 2, it is characterised in that first bearing seat (13) place is equipped with collimation Wheelbase adjustment component (17), described corresponding first bearing seat (13) place of collimation foreboard (1) are equipped with strip hole, the strip hole along The width of window (3) is set, and is internally provided with connection first bearing seat (13) and the fastening bolt of collimation foreboard (1) (20)。
- 4. a kind of collimator apparatus according to claim 3, it is characterised in that the collimation axis includes away from adjustment component (17) Adjusting seat (18) and adjusting bolt (19), the adjusting seat (18) is connected with collimation foreboard (1), on the first bearing seat (13) Equipped with the threaded hole with adjusting bolt (19) thread fitting, the adjusting bolt (19) is through adjusting seat (18) and embedded threaded hole It is interior.
- 5. a kind of collimator apparatus according to claim 1, it is characterised in that the first collimation block (10) and the second collimation The end of block (11) is equipped with take-up housing (21), and the take-up housing (21) is equipped with the sliding block slided along guide rail (9), the cunning Block (21) is connected by clamping plate (22) with synchronous belt (8).
- 6. a kind of collimator apparatus according to claim 5, it is characterised in that the motor (5), manual knob (12) equal position On the outside of the cavity that side plate (23) surrounds, the take-up housing (21) positioned at second collimation block (11) end is equipped with sensing chip (24), The side plate (23) is equipped with sensor (25).
- 7. a kind of collimator apparatus according to claim 6, it is characterised in that the sensor (25) is equipped with 2, and 2 Sensor (25) is located at the middle part and end of side plate (23) respectively.
- 8. according to a kind of any collimator apparatuses of claim 1-7, it is characterised in that first in rear collimation mechanism Collimation axis (26) and the second collimation axis (27) are arranged at intervals along the width of window (3).
- 9. a kind of collimator apparatus according to claim 8, it is characterised in that be additionally provided with 2 laser on the side plate (23) Device (4), and 2 lasers (4) are located at the length and width center of window (3) respectively.
- 10. a kind of CT machines, it is characterised in that include any collimator apparatuses of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049836.9A CN108020569B (en) | 2018-01-18 | 2018-01-18 | Collimation device and CT machine comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810049836.9A CN108020569B (en) | 2018-01-18 | 2018-01-18 | Collimation device and CT machine comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108020569A true CN108020569A (en) | 2018-05-11 |
| CN108020569B CN108020569B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810049836.9A Active CN108020569B (en) | 2018-01-18 | 2018-01-18 | Collimation device and CT machine comprising same |
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| Country | Link |
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| CN (1) | CN108020569B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109316199A (en) * | 2018-09-18 | 2019-02-12 | 上海联影医疗科技有限公司 | A kind of collimator filter assemblies, collimator and Medical Devices |
| WO2023035789A1 (en) * | 2021-09-09 | 2023-03-16 | 同方威视技术股份有限公司 | Ray collimation device and radiation inspection device |
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| CN103337272A (en) * | 2013-06-27 | 2013-10-02 | 东软飞利浦医疗设备系统有限责任公司 | X-ray collimating device and collimation vent seam width adjusting method |
| CN103489496A (en) * | 2013-09-10 | 2014-01-01 | 沈阳东软医疗系统有限公司 | X-ray collimating device for CT machine |
| WO2017039202A1 (en) * | 2015-09-01 | 2017-03-09 | 박덕배 | Device for opening and closing lead plate of collimator for x-ray equipment |
| CN207946377U (en) * | 2018-01-18 | 2018-10-09 | 中国工程物理研究院应用电子学研究所 | A kind of collimator apparatus and the CT machines comprising the device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109316199A (en) * | 2018-09-18 | 2019-02-12 | 上海联影医疗科技有限公司 | A kind of collimator filter assemblies, collimator and Medical Devices |
| WO2023035789A1 (en) * | 2021-09-09 | 2023-03-16 | 同方威视技术股份有限公司 | Ray collimation device and radiation inspection device |
| GB2625957A (en) * | 2021-09-09 | 2024-07-03 | Nuctech Co Ltd | Ray collimation device and radiation inspection device |
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