CN210005698U - PET detector structure for PET-MR system - Google Patents
PET detector structure for PET-MR system Download PDFInfo
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- CN210005698U CN210005698U CN201920415175.7U CN201920415175U CN210005698U CN 210005698 U CN210005698 U CN 210005698U CN 201920415175 U CN201920415175 U CN 201920415175U CN 210005698 U CN210005698 U CN 210005698U
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- 238000012545 processing Methods 0.000 claims abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 230000017525 heat dissipation Effects 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims description 48
- 238000001704 evaporation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 5
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- 238000002600 positron emission tomography Methods 0.000 description 35
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Abstract
The utility model provides an PET detector structures for PET-MR system relates to medical imaging equipment technical field, including the division board, locate the functional area of division board face, locate the circuit board of division board face in addition, the functional area includes functional area and second functional area, the functional area is equipped with detector unit array, the division board is refrigerating plant or be equipped with heat dissipation or refrigerating plant in the second functional area, the circuit board with detector unit array electricity is connected the utility model discloses PET detector structure encapsulates PET detector unit array and its affiliated electronic signal processing system or cooling device in single module, and ization promptly can put into whole structure along magnet mesopore axis, forms concentric annular distribution with the magnet, has not only solved the limited problem of installation space in the magnet, has also solved cooling system list and has leaded to the limited problem of cooling effect.
Description
Technical Field
The utility model relates to a medical imaging equipment technical field especially relates to PET detector structures that are used for PET-MR system.
Background
PET/MR is a new technology that combines the molecular imaging function of PET (positron emission tomography) with the excellent soft tissue contrast function of MRI (magnetic resonance imaging). it can image diseased cells that diffuse in soft tissue, it enables patients to scan in various modes, it has both PET and MR examination functions, and it can achieve the best complement of realization advantages.
In the current PET/MR system, there are two main ways of the position relationship between the PET detector and the MR, namely, a series type PET/MR system in which the PET detector 33 and the MR are arranged in series, the PET is positioned in front of the MR as shown in figure 1, and an embedded type MR system in which the PET detector 33 is embedded in a central MR hole and the PET is integrated in the hole of the MR magnet as shown in figure 2. the two systems have the defects that 1, the embedded type system is used, a special ASIC circuit needs to be developed due to the limited height, an electronic signal processing system is integrated in a single circuit board, a long development period is needed, the cost is high, the flexibility is poor, only a water cooling plate is used for heat dissipation, the heat dissipation effect is limited, 2, the electronic signal processing system cannot be packaged in modules by using the series type system, an independent cabinet needs to be arranged far away from the MR magnet, the wiring harness is large, the distance is long, and the signal is attenuated, and the reliability is poor.
Based on this, the applicant conducted a dedicated study to develop PET detector structures for PET-MR systems, and the present case resulted therefrom.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned defects existing in the prior art, the utility model provides an kinds of PET detector structures for PET-MR system can encapsulate PET detector cell array, its affiliated electronic signal processing system and cooling device in single module, makes its space of installing in PET/MR system unrestricted.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
PET detector structure for PET-MR system comprises a partition board, a functional area arranged on the surface of the partition board, and a circuit board arranged on the other surface of the partition board, wherein the functional area comprises a functional area and a second functional area, the functional area is provided with a detector unit array, the partition board is a refrigerating device or a heat dissipation or refrigerating device is arranged in the second functional area, and the circuit board is electrically connected with the detector unit array.
, the circuit board is a signal processing system, and the divider board is a water-cooled board.
As a second preferred scheme, the circuit board is a signal processing system, the partition board is a heat conducting board, and a water cooling board or a semiconductor cooling board is arranged on the surface of the partition board located in the second functional area.
As a third preferred scheme, the circuit board is a signal processing system, the partition plate is a heat pipe, the second functional area is provided with a heat exchange mechanism, the heat pipe comprises an evaporation end, and the evaporation end is installed at the heat exchange mechanism.
As a fourth preferred scheme, the circuit board is a signal switching system, the second functional area is provided with a signal processing system, and the partition plate is a water-cooling plate.
As a more optimized solution from to the third preferred solution, the end of the signal processing system is connected with the detector unit array through a flexible line or a connector, and the other end is connected to an external system through a transfer interface to complete data transmission.
As a more optimized solution of the fourth preferred solution, the signal processing system is composed of circuit boards or a plurality of circuit boards, the circuit boards are stacked and connected with each other through flexible lines or connectors, the end of the signal processing system is connected with the signal switching system through a flexible line or a connector, and the end is connected with an external processing system through a switching interface to complete data transmission.
As a more preferable mode of the second preferable mode, the partition plate is made of a high thermal conductivity metal material.
As the optimization scheme of the utility model, the both ends and the middle part of division board face all are equipped with the spacer block, form functional area and second functional area, the spacer block adopts nonmagnetic electrically conductive thermal insulation material.
As the utility model discloses an optimization scheme, the PET detector structure still includes the parcel at the shell of functional area and second functional area periphery, the shell adopts ization shaping carbon fiber material.
The utility model discloses a principle and technological effect:
(1) the utility model discloses PET detector structure encapsulates PET detector cell array and its affiliated electronic signal processing system or cooling device in single module, ization promptly, can put into whole structure along magnet mesopore axis, forms concentric annular distribution with the magnet, has not only solved the limited problem of installation space in the magnet, has also solved cooling system list and has leaded to the limited problem of cooling effect.
(2) The utility model discloses a structure has higher flexibility, can select the division board as refrigerating plant according to the demand, or select to set up refrigeration or heat abstractor alone and make division board heat-transfer device in the second functional area, can be applicable to multiple circuit design (like ASIC scheme and non-ASIC scheme) and heat dissipation scheme, satisfies the different demands of different users.
Drawings
FIG. 1 is a schematic diagram of a tandem PET/MR structure;
FIG. 2 is a schematic diagram of an embedded PET/MR structure;
FIG. 3 is a schematic diagram of the PET detector structure of the present invention in a PET/MR system;
FIG. 4 is a schematic structural diagram of PET detector structures for a PET-MR system;
fig. 5 is a schematic diagram of the internal structure of PET detector structures for PET-MR system.
The label shows that the PET system 1, the MR system 2, the gradient coil 31, the MR magnet 32, the PET detector 33, the bore axis 34 in the magnet, the PET detector 35 of the present invention, the separation plate 41, the separation block 42, the -th functional area 43, the second functional area 44, the circuit board 45, the detector unit array 46, the housing 47, and the scanning direction a.
Detailed Description
In order to make the technical means and the technical effects achieved by the technical means of the present invention more clearly and completely disclosed, the following embodiments are provided and the following detailed description is made with reference to the accompanying drawings:
example (when the present example employs an ASIC scheme)
The PET detector structures for the PET-MR system of the embodiment include a partition plate 41, a functional area disposed on the 41 surface of the partition plate 41, and a circuit board 45 disposed on the other surface of the partition plate 41, wherein the functional area includes a functional area 43 and a second functional area 44, the functional area 43 is provided with a detector unit array 46, the partition plate 41 is a refrigeration device or a heat dissipation or refrigeration device is disposed in the second functional area 44, and the circuit board 45 is electrically connected to the detector unit array 46.
The circuit board 45 is a signal processing system, and in this embodiment, the partition plate 41 is selected as a refrigeration device, and the second functional area 44 can be partitioned, so that the partition plate 41 adopts a water-cooling plate, and the detector structure can be used as a cooling device of a detector which only adopts a single water-cooling mode, so as to meet requirements.
EXAMPLE two (when the present embodiment employs ASIC scheme)
The PET detector structures for the PET-MR system of the embodiment include a partition plate 41, a functional area disposed on the 41 surface of the partition plate 41, and a circuit board 45 disposed on the other surface of the partition plate 41, wherein the functional area includes a functional area 43 and a second functional area 44, the functional area 43 is provided with a detector unit array 46, the partition plate 41 is a refrigeration device or a heat dissipation or refrigeration device is disposed in the second functional area 44, and the circuit board 45 is electrically connected to the detector unit array 46.
The circuit board 45 is a signal processing system, in this embodiment, a heat dissipation or refrigeration device is selected to be arranged in the second functional area 44, the partition plate 41 adopts a heat conduction plate, and the water cooling plate or the semiconductor refrigeration piece is arranged on the surface of the partition plate 41, which is positioned in the second functional area 44, so that the heat generating devices of the circuit board 45 (ASIC circuit) can be intensively arranged on the partition plate 41 corresponding to the second functional area 44, and the water cooling plate or the semiconductor refrigeration piece arranged in the second functional area 44 cools the partition plate 41 of the part, thereby improving the heat exchange efficiency.
In the present embodiment, the partition plate 41 is preferably made of a high thermal conductivity metal material. If the heat conducting plate made of copper or aluminum is adopted, the heat generated by the circuit board 45 can be rapidly received and transferred to the water cooling plate or the semiconductor refrigerating plate, so that the heat conducting efficiency is improved, and the cooling effect is improved.
EXAMPLE III (when the present embodiment employs an ASIC implementation)
The PET detector structures for the PET-MR system of the embodiment include a partition plate 41, a functional area disposed on the 41 surface of the partition plate 41, and a circuit board 45 disposed on the other surface of the partition plate 41, wherein the functional area includes a functional area 43 and a second functional area 44, the functional area 43 is provided with a detector unit array 46, the partition plate 41 is a refrigeration device or a heat dissipation or refrigeration device is disposed in the second functional area 44, and the circuit board 45 is electrically connected to the detector unit array 46.
The circuit board 45 is a signal processing system, in the embodiment, a heat dissipation device, that is, a heat exchange mechanism disposed in the second functional area 44 is selected to be disposed in the second functional area 44, and the partition plate 41 employs a heat pipe, the heat pipe includes an evaporation end, and the evaporation end is mounted at the heat exchange mechanism, the heat pipe absorbs heat through evaporation, and takes away heat generated on the circuit board 45 through the heat exchange mechanism at the evaporation end, which is also flexible heat dissipation schemes, and meets the requirements of another part of users.
In the embodiments to iii, preferably, the signal processing system end is connected to the detector unit array 46 through a flexible circuit or a connector, and the end is connected to an external system through a switch to complete data transmission.
The structure of the above embodiments through three may be well suited for detector structures that employ non-ASIC solutions.
EXAMPLE four (when this example uses a non-ASIC approach)
The PET detector structures for the PET-MR system of the embodiment include a partition plate 41, a functional area disposed on the 41 surface of the partition plate 41, and a circuit board 45 disposed on the other surface of the partition plate 41, wherein the functional area includes a functional area 43 and a second functional area 44, the functional area 43 is provided with a detector unit array 46, the partition plate 41 is a refrigeration device or a heat dissipation or refrigeration device is disposed in the second functional area 44, and the circuit board 45 is electrically connected to the detector unit array 46.
The circuit board 45 is a signal transfer system, the second functional area 44 is equipped with a signal processing system, and the partition plate 41 is selected as a cooling device, so that the partition plate 41 adopts a water-cooled plate, the signal transfer system is used for collecting signals acquired by the detector unit array 46 and outputting the processed signals to a lower -level processing system (signal processing system) arranged in the second functional area 44, and therefore the structure of the embodiment can well meet the requirement of a detector structure adopting a non-ASIC scheme.
Preferably, the signal processing system comprises or more circuit boards, the circuit boards are stacked by being connected with each other through a flexible circuit or a connector, the end of the signal processing system is connected with the signal switching system through the flexible circuit or the connector, and the end is connected to an external processing system through the switching interface to complete data transmission.
In the embodiments to four preferred embodiments, the two ends and the middle of the surface of the partition plate 41 are provided with the partition blocks 42 to form the th functional area 43 and the second functional area 44, and the partition blocks 42 are made of nonmagnetic conductive and heat-insulating materials, so that the th functional area and the second functional area are conductive but not conductive, and the functional requirements are met.
In -IV, the PET detector structure further includes a housing 47 wrapped around the functional region 43 and the second functional region 44, the housing 47 is made of carbon fiber material, the housing made of carbon fiber material has light weight, high strength, is not easy to expand when heated, and has good heat insulation effect with the outside.
The above is a detailed description of the proposed solution according to steps in conjunction with the preferred embodiment of the present invention, and it should not be assumed that the embodiments of the present invention are limited to the above description, and those skilled in the art to which the present invention pertains can make several simple deductions or substitutions without departing from the spirit of the present invention, and all should be considered as belonging to the protection scope of the present invention.
Claims (10)
- The PET detector structure for the PET-MR system is characterized by comprising a partition plate, a functional region arranged on the surface of the partition plate and a circuit board arranged on the other surface of the partition plate, wherein the functional region comprises a th functional region and a second functional region, the th functional region is provided with a detector unit array, the partition plate is a refrigerating device or a heat dissipation or refrigerating device is arranged in the second functional region, and the circuit board is electrically connected with the detector unit array.
- 2. The structure of PET detectors for PET-MR system as set forth in claim 1, wherein the circuit board is a signal processing system and the separation plate is a water-cooled plate.
- 3. The structure of PET detectors for PET-MR system as claimed in claim 1, wherein the circuit board is a signal processing system, the partition board is a heat conducting board, and the surface of the partition board located in the second functional area is provided with a water-cooling board or a semiconductor cooling board.
- 4. The structure of PET detectors for use in a PET-MR system as claimed in claim 1, wherein the circuit board is a signal processing system, the divider is a heat pipe, the second functional region is provided with a heat exchange mechanism, the heat pipe includes an evaporation end, and the evaporation end is mounted on the heat exchange mechanism.
- 5. The structure of PET detectors for PET-MR system as claimed in claim 1, wherein the circuit board is a signal switching system, the second functional area is installed with a signal processing system, and the partition board is a water-cooling board.
- 6. The PET detector structure of claim wherein the signal processing system is connected to the array of detector units via flexible wires or connectors, and the is connected to an external system via a patch port for data transmission.
- 7. The PET detector structure for the PET-MR system as claimed in claim 5, wherein the signal processing system is composed of or more circuit boards stacked together by flexible wires or connectors, the end of the signal processing system is connected to the signal switching system by flexible wires or connectors, and the end is connected to an external processing system by a switching interface to complete data transmission.
- 8. The PET detector structure for the PET-MR system of claim 3, wherein the divider plate is made of high thermal conductivity metal material.
- 9. The structure of PET detectors for PET-MR system as claimed in claim 1, wherein the two ends and the middle of the partition plate are provided with partition blocks to form the th and second functional regions, and the partition blocks are made of non-magnetic conductive and heat-insulating material.
- 10. The structure of PET detectors for use in a PET-MR system as claimed in claim 1, wherein the PET detector structure further comprises an outer shell surrounding the functional region and the second functional region, the outer shell being a carbon fiber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415175.7U CN210005698U (en) | 2019-03-29 | 2019-03-29 | PET detector structure for PET-MR system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415175.7U CN210005698U (en) | 2019-03-29 | 2019-03-29 | PET detector structure for PET-MR system |
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| Publication Number | Publication Date |
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| CN210005698U true CN210005698U (en) | 2020-01-31 |
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| CN201920415175.7U Active CN210005698U (en) | 2019-03-29 | 2019-03-29 | PET detector structure for PET-MR system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110136A1 (en) * | 2020-11-27 | 2022-06-02 | 中国科学院深圳先进技术研究院 | Cooling system for radio frequency coil, and magnetic resonance imaging device |
-
2019
- 2019-03-29 CN CN201920415175.7U patent/CN210005698U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022110136A1 (en) * | 2020-11-27 | 2022-06-02 | 中国科学院深圳先进技术研究院 | Cooling system for radio frequency coil, and magnetic resonance imaging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A PET detector structure for PET-MR system Effective date of registration: 20210818 Granted publication date: 20200131 Pledgee: Hangzhou joint rural commercial bank Limited by Share Ltd. three pier sub branch Pledgor: MinFound Medical Systems Co.,Ltd. Registration number: Y2021330001158 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231023 Granted publication date: 20200131 Pledgee: Hangzhou joint rural commercial bank Limited by Share Ltd. three pier sub branch Pledgor: MinFound Medical Systems Co.,Ltd. Registration number: Y2021330001158 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |