CN106667517A - PET imaging device - Google Patents
PET imaging device Download PDFInfo
- Publication number
- CN106667517A CN106667517A CN201611256679.6A CN201611256679A CN106667517A CN 106667517 A CN106667517 A CN 106667517A CN 201611256679 A CN201611256679 A CN 201611256679A CN 106667517 A CN106667517 A CN 106667517A
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- CN
- China
- Prior art keywords
- air
- inlet cavity
- chamber
- return air
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/037—Emission tomography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4488—Means for cooling
Abstract
The invention provides a PET imaging device which comprises a machine frame where a scanning channel is limited, a plurality of detector modules sequentially fixed to the machine frame on the machine frame along the edge of the scanning channel, a cooling chamber surrounding the detector modules, a cooler, an air inlet cavity and an air return cavity, wherein the air inlet cavity and the air return cavity are communicated with the cooling chamber and the cooler respectively; the air inlet cavity and the air return cavity are arranged adjacently, and a heat insulation layer is arranged on the adjacent surfaces. According to the PET imaging device, the detector modules are encircled through the cooling chamber, a cooling space is limited, the detector module cooling efficiency is improved, and a dustproof protective effect on the detector modules is achieved; the heat insulation layer is arranged between the air inlet cavity and the air return cavity, invalid heat exchange between the air inlet cavity and the air return cavity is avoided, and cooling efficiency is improved.
Description
Technical field
The present invention relates to Medical Instruments technical field, more particularly to a kind of PET imaging devices.
Background technology
Existing medical imaging technology includes single photon emission computerized tomography (Single-Photon Emission
Computed Tomography, SPECT), positron emission tomography (Position Emission Tomography,
The multiple technologies such as PET).The medical image systems such as SPECT, PET, including a passage for being used to accommodate patient, and in passage
Detector around human body is set, it is so as to human lesion tissue multi-angle imaging picture can be obtained and then more accurate to obtain
Pathological Information.
The principle of positron emission tomography (hereinafter referred to as PET imagings) technology is：What positron beam was launched when decaying
One positron is combined with the free electron in tissue to be buried in oblivion, and is converted into both direction conversely, energy is respectively for 511KeV's
γ photons.When while receive this pair of γ light period of the day from 11 p.m. to 1 a.m, having determined that the beam to the scintillation probe for being arranged in emitter both sides
On the line (being referred to as meeting line, LOR) of two probes, this detection mode is exactly to meet detection.By the weight of computer
Building the sensing point of the carrying spatial positional information that algorithm is detected to all directions carries out image reconstruction, obtains beam in vivo
The distribution in space, has been generated as the image with positron beam information.
In order to obtain steady and audible scanogram, the detector and electronics circuit in medical imaging apparatus needs work
Under suitable and stable temperature environment.Temperature is raised and can dramatically increase system noise, and temperature fluctuation can cause system drifting, from
And reduce picture quality.Therefore cooling system is to ensure one of key that medical imaging apparatus high-quality is imaged.It is a kind of more common
Cooling means be directly to take the air in scanning room away so as to take away the heat inside machine, but this mode can not maintain to sweep
The stability of a temperature is retouched, it is difficult to ensure system operation in optimal operating temperature, while easily by the grey trifle in the world in environment
Matter brings detector into, affects imaging effect and lifetime of system.
The content of the invention
The present invention be in order to solve prior art in PET imaging devices cooling system cooling effectiveness it is low, and easily by ring
Problem that dust impurity in border is brought on detector and design.
To solve the above problems, a kind of PET imaging devices, including：Define the frame of scan channel；On the frame edge
The scan channel edge is in turn secured to the multiple detector modules in the frame；Around the cooling of the detector module
Room；Cooler；Air-inlet cavity and the return air chamber of cooling chamber and cooler are respectively communicated with, wherein the air-inlet cavity and return air chamber is adjacent sets
Put, and insulating layer is provided with adjacent surface.
Optionally, the air-inlet cavity and return air chamber are integrated in the frame.
Optionally, the air-inlet cavity and return air chamber be near detector side forming coplanar, the air-inlet cavity and return air chamber
Lead to cooling chamber air-inlet cavity air inlet and return air chamber air outlet be arranged on it is described it is coplanar on.
Optionally, the cooling is indoor includes multiple dividing plates, and the dividing plate is according to the number of detector module by cooling chamber
It is divided into multiple seed cells, each seed cell includes the air-inlet cavity air inlet and return air chamber air outlet in connection air-inlet cavity and return air chamber.
Optionally, the air-inlet cavity connect with return air chamber cooler air intake accent and return air accent be located at it is described near visit
Survey device side to be formed on coplanar.
Optionally, the non-adjacent face in the air-inlet cavity and return air chamber includes heat-insulation layer.
Optionally, the wall of the cooling chamber includes heat-insulation layer.
Optionally, the cooler includes that discharge chambe and the wall of plenum chamber, the discharge chambe and plenum chamber include heat-insulation layer.
Optionally, the cooling chamber is confined space.
Optionally, the heat-insulation layer is between plate plus heat insulation foam.
Compared with prior art, PET imaging devices of the invention are surrounded detector module by cooling chamber,
The space of cooling is defined, the cooling efficiency to detector module is improved, while playing the guarantor of dust-proof anti-gray to detector module
Shield is acted on；Further insulating layer is set between air-inlet cavity and return air chamber, it is to avoid unavailable heat between air-inlet cavity and return air chamber
Exchange, improve cooling efficiency.
Description of the drawings
Fig. 1 is the frame schematic diagram according to first embodiment；
Fig. 2 is the frame perspective view according to first embodiment；
Fig. 3 is the frame perspective view according to second embodiment；
Fig. 4 is the frame schematic diagram according to second embodiment；
Fig. 5 is another angle schematic diagram according to second embodiment frame；
Fig. 6 is the cooler schematic diagram according to second embodiment；
Fig. 7 is the cooler schematic internal view according to second embodiment.
Specific embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.Elaborate detail in order to fully understand the present invention in the following description.But
It is that the present invention can be implemented with various different from alternate manner described here, those skilled in the art can be without prejudice to this
Similar popularization is done in the case of invention intension.Therefore the present invention is not limited by following public specific embodiment.
Embodiment one
Fig. 1 is the frame schematic diagram according to first embodiment；Fig. 2 is the frame perspective view according to first embodiment.With reference to
Fig. 1, Fig. 2 (arrow represents the flow direction of cold air), in order to solve the problems of the prior art, the present embodiment provides a kind of PET
Imaging device, including：Define the frame 10 of scan channel 19；It is solid successively along the edge of the scan channel 19 in the frame 10
Multiple detector modules 20 in the frame 10；Around the cooling chamber 40 of the detector module 20；Cooler 30；Point
Not Lian Tong cooling chamber 40 and cooler 30 air-inlet cavity 11 and return air chamber 12, wherein the air-inlet cavity 11 and return air chamber 12 is adjacent sets
Put, and insulating layer is provided with adjacent surface.
With continued reference to Fig. 1, the frame 10 is tabular, including for accommodating the circular scan passage 19 of patient, along
Multiple detector modules 20 of the edge of the scan channel 19 arrangement, the detector module 20 is vertically fixedly mounted on the machine
On frame 10.
With continued reference to Fig. 2, the detector module 20 may include crystal block section 21 and circuit board section 22, around the spy
Survey device module 20 and be provided with annular cover plate 43, by the side wall of frame 10, annular cover plate 43, scan channel inwall 42 and back shroud
43 form the cooling chamber 40 for surrounding detector module 20.The cooling chamber 40 is designed as far as possible to improve the efficiency of cooling
The space of sealing.
In the present embodiment, the cooler 30 is located at the lower section of the detector 20, cold in order to reduce equipment occupation space
But machine 30 and cooling chamber 40 are located at the same side of the frame 10.In other embodiments the cooler 30 can also be located at drop
The side or top in greenhouse 40, is not construed as limiting to this.
In order to save space, the air-inlet cavity 11 and return air chamber 12 are disposed adjacent between cooler 30 and cooling chamber 40,
And be integrated in the frame 10.The cold air that cooler 30 is produced is flowed in cooling chamber 40 by air-inlet cavity 11, flows into cooling chamber
40 cold air is cooled down to the detector module 20 in cooling chamber 40, is back to cooler 30 by return air chamber 12 again afterwards and is entered
Continue to repeat the cooling down operation after row cooling.
In above process, in order to avoid the air-flow in the air-inlet cavity 11 that is disposed adjacent and return air chamber 12 passes through the He of air-inlet cavity 11
Wall between return air chamber 12 carries out useless heat exchange (temperature in general air-inlet cavity and return air chamber can be differed at 5 ° or so), described
The adjacent surface 13 in air-inlet cavity 11 and return air chamber 12 is provided with insulating layer.The insulating layer can be between plate plus heat insulation foam or cystosepiment
Deng.
Further, for the invalid loss of the cold air for reducing air-inlet cavity 11, the air-inlet cavity 11 is non-adjacent with return air chamber 12
Face is also provided with heat-insulation layer.
Further, in order to reduce cooling chamber 40 in cold air with the external world invalid heat exchange is carried out by annular cover plate 43, drop
Greenhouse wall 40 is also provided with heat-insulation layer.
According to the PET imaging devices of the present embodiment detector module is surrounded by cooling chamber, defines cooling
Space, improves the cooling efficiency to detector module, while playing the protective effect of dust-proof anti-gray to detector module；Further
Insulating layer is set between air-inlet cavity and return air chamber, it is to avoid invalid heat exchange between air-inlet cavity and return air chamber, improves cooling
Efficiency.
Embodiment two
Fig. 3 is the frame perspective view according to second embodiment；Fig. 4 is the frame schematic diagram according to second embodiment；Fig. 5 is
According to another angle schematic diagram of second embodiment frame.Embodiment one is different from, in the present embodiment, air-inlet cavity 11 and return air chamber
12 are forming coplanar 17 near detector module (not shown) side, and the detector module is fixed on described coplanar 17, leads to
The air-inlet cavity air inlet 112 and return air chamber air outlet 122 of the cooling chamber 40 is located on described coplanar 17.
With reference to Fig. 5, in the present embodiment, by including multiple dividing plates 44 in the cooling chamber 40 that the annular cover plate 43 is surrounded,
The dividing plate 44 according to the number of detector module by cooling chamber 40 points be multiple seed cells, each seed cell's one detector mould of correspondence
Block, and each seed cell is provided with air-inlet cavity air inlet 112 and return air chamber air outlet 122.
With continued reference to Fig. 4, in the present embodiment, the air-inlet cavity 11 connects the air intake accent of cooler 30 with return air chamber 12
113 and return air accent 123 be located at frame on coplanar 17 that detector module side is formed.
Fig. 6 is the cooler schematic diagram according to second embodiment.Fig. 7 is illustrated according to the cooler inside of second embodiment
Figure.As shown in Figure 6, Figure 7, included according to the cooler 30 of the present embodiment, compressor 33, exhaust fan 34, cooling chamber 31 and air-supply
Room 32, the plenum chamber 32 is provided with the cooler air outlet 321 of correspondence air intake accent 113；The cooling chamber 31 is provided with right
Answer the cooler air inlet 311 of return air accent 123.In the present embodiment, the cooling chamber 31 of the cooler and plenum chamber 32
Wall is provided with heat-insulation layer.
According in the PET imaging devices of the present embodiment, the air-inlet cavity and air-out chamber are formed with coplanar, and the detection
Device, annular cover plate, and cooler be all integrally fixed at it is described it is coplanar on, therefore it is convenient fix, installation operation is simple.Further cooling
Interior multiple seed cells are divided into by dividing plate, it is ensured that the detector of top and the detector of lower section can be lowered the temperature well (if
Non-inductive windings, cold air can be downward, steam upwards, therefore up and down two-part detector cooling-down effect is different).Further in cooler
Wall on also be provided with heat-insulation layer, reduce further the invalid heat exchange in cooler, improve overall cooling efficiency.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and techniques content of the disclosure above to this
Bright technical scheme makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, according to the present invention
Technical spirit any simple modification, equivalent variations and modification that above example is made, belong to technical solution of the present invention
Protection domain.
Claims (10)
1. a kind of PET imaging devices, it is characterised in that include：Define the frame of scan channel；Sweep along described in the frame
Retouch multiple detector modules that channel edge is in turn secured in the frame；Around the cooling chamber of the detector module；It is cold
But machine；Air-inlet cavity and the return air chamber of cooling chamber and cooler are respectively communicated with, wherein the air-inlet cavity and return air chamber are disposed adjacent, and
Insulating layer is provided with adjacent surface.
2. equipment according to claim 1, it is characterised in that the air-inlet cavity and return air chamber are integrated in the frame.
3. equipment according to claim 2, it is characterised in that the air-inlet cavity and return air chamber are near detector side shape
Into coplanar, the air-inlet cavity and return air chamber lead to the air-inlet cavity air inlet and return air chamber air outlet of cooling chamber be arranged on it is described coplanar
On.
4. equipment according to claim 3, it is characterised in that the cooling is indoor to include multiple dividing plates, the dividing plate root
Cooling chamber is divided into into multiple seed cells according to the number of detector module, each seed cell includes the air-inlet cavity in connection air-inlet cavity and return air chamber
Air inlet and return air chamber air outlet.
5. equipment according to claim 4, it is characterised in that the air-inlet cavity connects the air-inlet cavity of cooler with return air chamber
Mouth and return air accent are located at the close detector side and are formed on coplanar.
6. equipment according to claim 1, it is characterised in that the non-adjacent face in the air-inlet cavity and return air chamber includes insulation
Layer.
7. equipment according to claim 1, it is characterised in that the wall of the cooling chamber includes heat-insulation layer.
8. equipment according to claim 1, it is characterised in that the cooler includes discharge chambe and plenum chamber, the pressure
The wall of contracting room and plenum chamber includes heat-insulation layer.
9. equipment according to claim 1, it is characterised in that the cooling chamber is confined space.
10. equipment according to any one of claim 1 to 9, it is characterised in that the heat-insulation layer is between plate plus heat-insulated
Cotton.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611256679.6A CN106667517B (en) | 2016-12-30 | 2016-12-30 | PET imaging devices |
| US15/721,776 US10267930B2 (en) | 2016-09-30 | 2017-09-30 | Systems for PET imaging |
| US16/371,185 US10768319B2 (en) | 2016-09-30 | 2019-04-01 | Systems for PET imaging |
| US17/013,821 US11385363B2 (en) | 2016-09-30 | 2020-09-07 | Systems for PET imaging |
| US17/811,870 US11874413B2 (en) | 2016-09-30 | 2022-07-11 | Systems for pet imaging |
| US18/413,000 US20240151863A1 (en) | 2016-09-30 | 2024-01-15 | Systems for pet imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611256679.6A CN106667517B (en) | 2016-12-30 | 2016-12-30 | PET imaging devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106667517A true CN106667517A (en) | 2017-05-17 |
| CN106667517B CN106667517B (en) | 2018-08-03 |
Family
ID=58872557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611256679.6A Active CN106667517B (en) | 2016-09-30 | 2016-12-30 | PET imaging devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106667517B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108420447A (en) * | 2018-03-07 | 2018-08-21 | 湖北锐世数字医学影像科技有限公司 | A kind of cooling component of imaging device |
| CN109009180A (en) * | 2017-05-29 | 2018-12-18 | 西门子医疗有限公司 | Detector device including the cooling air channel for cooling down X-ray detector |
| CN108420447B (en) * | 2018-03-07 | 2024-05-17 | 湖北锐世数字医学影像科技有限公司 | Cooling assembly of imaging device |
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| US20040114723A1 (en) * | 2002-12-16 | 2004-06-17 | Ray Shawn A. | Computed tomography gantry cooling systems and methods |
| CN101061955A (en) * | 2006-04-28 | 2007-10-31 | 西门子（中国）有限公司 | Wind-cooling heat dissipating method of CT device and the apparatus thereof |
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| CN109009180A (en) * | 2017-05-29 | 2018-12-18 | 西门子医疗有限公司 | Detector device including the cooling air channel for cooling down X-ray detector |
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| CN108420447B (en) * | 2018-03-07 | 2024-05-17 | 湖北锐世数字医学影像科技有限公司 | Cooling assembly of imaging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106667517B (en) | 2018-08-03 |
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Address after: 201807 No. 2258 Chengbei Road, Jiading Industrial Zone, Jiading District, Shanghai. Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201807 No. 2258 Chengbei Road, Jiading Industrial Zone, Jiading District, Shanghai. Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |
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