CN106667517B - PET imaging devices - Google Patents
PET imaging devices Download PDFInfo
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- CN106667517B CN106667517B CN201611256679.6A CN201611256679A CN106667517B CN 106667517 B CN106667517 B CN 106667517B CN 201611256679 A CN201611256679 A CN 201611256679A CN 106667517 B CN106667517 B CN 106667517B
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- air
- chamber
- inlet cavity
- return air
- rack
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- 238000012879 PET imaging Methods 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 54
- 238000005192 partition Methods 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000002059 diagnostic imaging Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000002603 single-photon emission computed tomography Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012636 positron electron tomography Methods 0.000 description 2
- 238000002600 positron emission tomography Methods 0.000 description 2
- 239000002937 thermal insulation foam Substances 0.000 description 2
- 238000003325 tomography Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 238000012831 peritoneal equilibrium test Methods 0.000 description 1
- 238000012877 positron emission topography Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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]
- A61B6/037—Emission tomography
-
- 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
- A61B6/4488—Means for cooling
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine (AREA)
Abstract
The present invention provides a kind of PET imaging devices, including：Define the rack of scan channel；It is in turn secured to along the scan channel edge multiple detector modules in the rack in the rack；Around the cooling chamber of the detector module；Cooler；It is respectively communicated with the air-inlet cavity and return air chamber of cooling chamber and cooler, wherein the air-inlet cavity and return air chamber are disposed adjacent, and insulating layer is equipped in adjacent surface.Detector module is surrounded by the PET imaging devices of the present invention by cooling chamber, defines the space of cooling, improves the cooling efficiency to detector module, while the protective effect of dust-proof anti-gray is played to detector module；Insulating layer is further set between air-inlet cavity and return air chamber, the invalid heat exchange between air-inlet cavity and return air chamber is avoided, improves cooling efficiency.
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 include a channel for accommodating patient, and in channel
Detector around human body is set, is imaged picture so as to obtain human lesion tissue multi-angle, 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 emitted when decaying
One positive electron is combined with the free electron in tissue to be buried in oblivion, and is converted into both direction on the contrary, energy is respectively 511KeV's
γ photons.When opposite direction is arranged in the scintillation detector on emitter both sides while receiving this pair of γ photon, the beam has been determined that
On the line (being known as meeting line, LOR) popped one's head in positioned at two, this detection mode is exactly to meet detection.Pass through the weight of computer
The sensing point progress image reconstruction for building the carrying spatial positional information that algorithm detects all directions, obtains beam in vivo
The distribution in space just generates the image with positron beam information.
In order to obtain steady and audible scan image, detector and electronic circuit in medical imaging apparatus need work
Under temperature environment that is suitable and stablizing.Temperature raising can dramatically increase system noise, and temperature fluctuation can cause system drifting, from
And reduce picture quality.Therefore cooling system is the key that ensure one of medical imaging apparatus high quality imaging.It is a kind of more common
Cooling means be directly to take the air in scanning room away to take away the heat inside machine, but this mode cannot maintain to sweep
Retouch the stability of a temperature, it is difficult to ensure system operation in best operating temperature, while be easy the grey trifle in the world in environment
Matter brings detector into, influences imaging effect and lifetime of system.
Invention content
The present invention and is easy ring in order to which the cooling system cooling efficiency for solving PET imaging devices in the prior art is low
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 rack of scan channel；On the rack edge
The scan channel edge is in turn secured to multiple detector modules in the rack；Around the cooling of the detector module
Room；Cooler；It is respectively communicated with the air-inlet cavity and return air chamber of cooling chamber and cooler, wherein the air-inlet cavity and return air chamber is adjacent sets
It sets, and insulating layer is equipped in adjacent surface.
Optionally, the air-inlet cavity and return air chamber are integrated in the rack.
Optionally, the air-inlet cavity and return air chamber are forming coplanar, the air-inlet cavity and return air chamber close to detector side
Lead to cooling chamber air-inlet cavity air inlet and return air chamber air outlet setting it is described it is coplanar on.
Optionally, include multiple partition boards in the cooling chamber, the partition board 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 for being connected to air-inlet cavity and return air chamber.
Optionally, the air-inlet cavity is connected to the air inlet accent of cooler with return air chamber and return air accent is located at the close spy
Device side is surveyed to be formed on coplanar.
Optionally, the non-adjacent face of the air-inlet cavity and return air chamber includes insulating layer.
Optionally, the wall of the cooling chamber includes insulating layer.
Optionally, the cooler includes discharge chambe and plenum chamber, and the wall of the discharge chambe and plenum chamber includes insulating layer.
Optionally, the cooling chamber is confined space.
Optionally, the insulating layer adds heat insulation foam between plate.
Compared with prior art, detector module is surrounded by PET imaging devices according to the present invention by cooling chamber,
It defines the space of cooling, improves the cooling efficiency to detector module, while playing the guarantor of dust-proof anti-gray to detector module
Shield acts on；Insulating layer is further set between air-inlet cavity and return air chamber, the unavailable heat between air-inlet cavity and return air chamber is avoided
It exchanges, improves cooling efficiency.
Description of the drawings
Fig. 1 is rack schematic diagram according to first embodiment；
Fig. 2 is rack perspective view according to first embodiment；
Fig. 3 is rack perspective view according to second embodiment；
Fig. 4 is rack schematic diagram according to second embodiment；
Fig. 5 is another angle schematic diagram of rack according to second embodiment；
Fig. 6 is cooler schematic diagram according to second embodiment；
Fig. 7 is cooler schematic internal view according to second embodiment.
Specific implementation mode
To make the above purposes, features and advantages of the invention more obvious and understandable, below in conjunction with the accompanying drawings to the present invention
Specific implementation mode be described in detail.Detail is elaborated in the following description in order to fully understand the present invention.But
It is the present invention with a variety of to implement different from other manner described here, those skilled in the art can be without prejudice to originally
Similar popularization is done in the case of invention intension.Therefore the present invention is not limited by following public specific implementation mode.
Embodiment one
Fig. 1 is rack schematic diagram according to first embodiment；Fig. 2 is rack perspective view according to first embodiment.With reference to
Fig. 1, Fig. 2 (arrow indicates the flow direction of cold air), in order to solve the problems in the prior art, the present embodiment provides a kind of PET
Imaging device, including：Define the rack 10 of scan channel 19；It is solid successively along 19 edge of the scan channel in the rack 10
Due to multiple detector modules 20 in the rack 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
It sets, and insulating layer is equipped in adjacent surface.
It continuing to refer to figure 1, the rack 10 is tabular, includes the circular scan channel 19 for accommodating patient, along
Multiple detector modules 20 of 19 edge of scan channel arrangement, the detector module 20 are 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, surround the spy
It surveys device module 20 and is equipped with annular cover plate 43, pass through the one side wall of rack 10, annular cover plate 43, scan channel inner wall 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 in order to improve the efficiency of cooling
The space of sealing.
In the present embodiment, the cooler 30 is located at 20 lower section of the detector, cold in order to reduce equipment occupation space
But machine 30 and cooling chamber 40 are located at the same side of the rack 10.The cooler 30 can also be located at drop in other embodiments
The side or top in greenhouse 40, are not construed as limiting 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 it is integrated in the rack 10.The cold air that cooler 30 generates is flowed by air-inlet cavity 11 in cooling chamber 40, and cooling chamber is flowed into
40 cold air cools down the detector module 20 in cooling chamber 40, later again by return air chamber 12 be back to cooler 30 into
Continue to repeat the cooling down operation after row is cooling.
In above process, pass through 11 He of air-inlet cavity in order to avoid the air-flow of the air-inlet cavity 11 and return air chamber 12 that are disposed adjacent
Wall between return air chamber 12 carries out useless heat exchange (temperature of general air-inlet cavity and return air chamber can be differed at 5 ° or so), described
Air-inlet cavity 11 and the adjacent surface of return air chamber 12 13 are equipped with insulating layer.The insulating layer can add heat insulation foam or cystosepiment between plate
Deng.
Further, in order to which the cold air for reducing air-inlet cavity 11 is lost in vain, the air-inlet cavity 11 is non-adjacent with return air chamber 12
Face is also provided with insulating layer.
Further, invalid heat exchange is carried out by annular cover plate 43 with extraneous in order to reduce the cold air in cooling chamber 40, dropped
Greenhouse wall 40 is also provided with insulating layer.
Detector module is surrounded by cooling chamber according to the PET imaging devices of the present embodiment, defines cooling
The cooling efficiency to detector module is improved, while playing the protective effect of dust-proof anti-gray to detector module in space；Further
Insulating layer is set between air-inlet cavity and return air chamber, avoids the invalid heat exchange between air-inlet cavity and return air chamber, improves cooling
Efficiency.
Embodiment two
Fig. 3 is rack perspective view according to second embodiment；Fig. 4 is rack schematic diagram according to second embodiment；Fig. 5 is
Another angle schematic diagram of rack according to second embodiment.It is different from embodiment one, in the present embodiment, air-inlet cavity 11 and return air chamber
12 are forming coplanar 17 close to 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 are located on described coplanar 17.
Include multiple partition boards 44 in the cooling chamber 40 that is surrounded by the annular cover plate 43 in the present embodiment with reference to figure 5,
The partition board 44 divides cooling chamber 40 for multiple seed cells, one detector mould of each seed cell's correspondence according to the number of detector module
Block, and each seed cell is equipped 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 is connected to the air inlet accent of cooler 30 with return air chamber 12
113 and return air accent 123 be located at rack on coplanar 17 that detector module side is formed.
Fig. 6 is cooler schematic diagram according to second embodiment.Fig. 7 is signal inside cooler according to second embodiment
Figure.As shown in Figure 6, Figure 7, include compressor 33, exhaust fan 34, cooling chamber 31 and air-supply according to the cooler of the present embodiment 30
Room 32, the plenum chamber 32 are equipped with the cooler air outlet 321 of corresponding air inlet accent 113；The cooling chamber 31 be equipped with pair
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 equipped with insulating 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 facilitate fixation, installation operation is simple.Further cooling
Interior is divided into multiple seed cells by partition board, ensure top detector and lower section detector can be cooled down well (if
Non-inductive windings, cold air can be downward, and hot gas is upward, therefore two-part detector cooling-down effect is different up and down).Further in cooler
Wall on also be provided with insulating layer, further reduced the invalid heat exchange in cooler, improve whole cooling efficiency.
Although the invention has been described by way of example and in terms of the preferred embodiments, but it is not for limiting the present invention, any this field
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical solution makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, and according to the present invention
Technical spirit to any simple modifications, equivalents, and modifications made by above example, belong to technical solution of the present invention
Protection domain.
Claims (10)
1. a kind of PET imaging devices, which is characterized in that including：Define the rack of scan channel；It is swept described in the rack
Retouch multiple detector modules that channel edge is in turn secured in the rack；Around the cooling chamber of the detector module；It is cold
But machine；It is respectively communicated with the air-inlet cavity and return air chamber of cooling chamber and cooler, wherein the air-inlet cavity and return air chamber are disposed adjacent, and
It is equipped with insulating layer in adjacent surface；Wherein, the cooling chamber is divided into including multiple partition boards, the multiple partition board in the cooling chamber
Multiple seed cells, each seed cell include the air-inlet cavity air inlet and return air chamber air outlet for being connected to air-inlet cavity and return air chamber.
2. equipment according to claim 1, which is characterized in that the air-inlet cavity and return air chamber are integrated in the rack.
3. equipment according to claim 2, which is characterized in that the air-inlet cavity and return air chamber are close to detector side shape
At coplanar, the air-inlet cavity and return air chamber leads to the air-inlet cavity air inlet of cooling chamber and return air chamber air outlet is arranged described coplanar
On.
4. equipment according to claim 3, which is characterized in that the partition board is according to the number of detector module by cooling chamber
It is divided into multiple seed cells.
5. equipment according to claim 4, which is characterized in that the air-inlet cavity is connected to 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, which is characterized in that the non-adjacent face of the air-inlet cavity and return air chamber includes heat preservation
Layer.
7. equipment according to claim 1, which is characterized in that the wall of the cooling chamber includes insulating layer.
8. equipment according to claim 1, which is characterized in that the cooler includes discharge chambe and plenum chamber, the pressure
The wall of contracting room and plenum chamber includes insulating layer.
9. equipment according to claim 1, which is characterized in that the cooling chamber is confined space.
10. equipment according to any one of claim 1 to 9, which is characterized in that the insulating 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 CN106667517A (en) | 2017-05-17 |
| CN106667517B true CN106667517B (en) | 2018-08-03 |
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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 |
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| CN (1) | CN106667517B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017208955A1 (en) * | 2017-05-29 | 2018-11-29 | Siemens Healthcare Gmbh | Detector device comprising a cooling air path for cooling an 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 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6909775B2 (en) * | 2002-12-16 | 2005-06-21 | Ge Medical Systems Global Technology Company, Llc | Computed tomography gantry cooling systems and methods |
| CN100457044C (en) * | 2006-04-28 | 2009-02-04 | 上海西门子医疗器械有限公司 | Wind-cooling heat dissipating method of CT device and the apparatus thereof |
| DE102006024972B4 (en) * | 2006-05-29 | 2008-08-21 | Siemens Ag | Device for cooling an X-ray detector and cooling system for a radiation detector arrangement |
| CN103860187B (en) * | 2012-12-10 | 2015-05-13 | 上海联影医疗科技有限公司 | Cooling system of positron emission tomography scanner |
| CN104921744B (en) * | 2014-03-19 | 2022-04-01 | Ge医疗系统环球技术有限公司 | Heat dissipation system and image forming apparatus including the same |
| DE102014205739B4 (en) * | 2014-03-27 | 2021-08-05 | Siemens Healthcare Gmbh | CT system |
| CN104825184A (en) * | 2015-04-28 | 2015-08-12 | 杭州灿维影像科技有限公司 | Air coolers, cooling system comprising air coolers and temperature regulating and balancing method for CT (Computed Tomography) scanning machine |
| CN105704982B (en) * | 2015-12-18 | 2017-12-22 | 上海联影医疗科技有限公司 | A kind of cooling system for medical imaging apparatus |
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2016
- 2016-12-30 CN CN201611256679.6A patent/CN106667517B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106667517A (en) | 2017-05-17 |
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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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