CN108186040B - PET detection module and PET detection device with same - Google Patents
PET detection module and PET detection device with same Download PDFInfo
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- CN108186040B CN108186040B CN201711447852.5A CN201711447852A CN108186040B CN 108186040 B CN108186040 B CN 108186040B CN 201711447852 A CN201711447852 A CN 201711447852A CN 108186040 B CN108186040 B CN 108186040B
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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
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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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
Abstract
The invention provides a PET detection module which comprises a fixing component, a detection component, a circuit board component and a heat dissipation component, wherein the fixing component limits the detection component, the circuit board component is positioned at one end of the detection component and is in heat conduction contact with the heat dissipation component, the heat dissipation component extends out of the fixing component for a preset distance, and the heat dissipation component can dissipate heat generated by the PET detection module. The invention also provides PET detection equipment. The PET detection module provided by the invention is provided with the heat dissipation assembly which is in contact with the circuit board assembly, and the heat dissipation structure is arranged on the heat dissipation assembly, so that heat generated by the PET detection module can be dissipated. The PET detection equipment provided by the invention can realize effective and stable heat dissipation and has stable detection precision.
Description
Technical Field
The invention relates to the technical field of medical imaging, in particular to a PET detection module and PET detection equipment with the same.
Background
PET detection devices can detect a living body and obtain physiological information of the living body, and are widely used in the fields of medical treatment and the like. The detector module of PET detection equipment can produce a large amount of heats when surveying, and too much heat is piled up and can reduce the detection precision of PET detection module on PET detection module, influences PET detection equipment to the detection of living body physiological information. The current PET detection module can not realize effective and stable heat dissipation, and the temperature is too high after long-time use, which can influence the measurement precision of the PET detection equipment.
Disclosure of Invention
In view of the above, there is a need for an improved PET detection module and a PET detection apparatus having the same, which can achieve effective and stable heat dissipation.
The invention provides a PET detection module which comprises a fixing component, a detection component, a circuit board component and a heat dissipation component, wherein the fixing component limits the detection component, the circuit board component is positioned at one end of the detection component and is in heat conduction contact with the heat dissipation component, the heat dissipation component extends out of the fixing component for a preset distance, and the heat dissipation component can dissipate heat generated by the PET detection module.
Further, the circuit board assembly comprises at least one circuit board unit, one side of the circuit board unit faces the detection assembly, and the other side of the circuit board unit is in heat conduction contact with the heat dissipation assembly.
Further, the circuit board unit includes a first circuit board unit and a second circuit board unit, the first circuit board unit is disposed toward the detection assembly, the first circuit board unit and the second circuit board unit are stacked with each other, and the first circuit board unit and the second circuit board unit are spaced by the heat dissipation assembly.
Furthermore, the circuit board unit further comprises an electric connecting piece, the electric connecting piece is arranged in the heat dissipation assembly, and the first circuit board unit is electrically connected with the second circuit board unit through the electric connecting piece.
Furthermore, the side face of the fixing component is wedge-shaped, the thickness of the side face of the fixing component close to one end of the heat dissipation component is larger than that of the other end of the fixing component, and the side face of the fixing component gradually shrinks from one end close to the heat dissipation component to one end far away from the heat dissipation component.
Further, the heat dissipation assembly comprises a base body and a heat dissipation structure arranged on the base body, and the heat dissipation structure is used for accelerating heat dissipation of the base body.
Furthermore, the heat dissipation structure is a heat dissipation flow channel, the heat dissipation flow channel is arranged in the substrate, two ends of the heat dissipation flow channel form openings on the surface of the substrate, and cooling fluid can be introduced into the heat dissipation flow channel; or
The heat dissipation structure is a plurality of heat dissipation fins which are arranged on the base body in a protruding mode side by side.
Furthermore, the heat dissipation assembly also comprises a heat dissipation plate, wherein the heat dissipation plate is positioned in the fixing assembly and is in heat conduction contact with the circuit board assembly, and the heat dissipation plate can conduct the heat of the circuit board assembly to the base body.
Further, the heat dissipation assembly further comprises a semiconductor refrigeration piece, the semiconductor refrigeration piece is arranged between the base body and the heat dissipation plate, and the semiconductor refrigeration piece is used for cooling the circuit board assembly.
The invention also provides PET detection equipment, which comprises a fixing piece and a plurality of PET detection modules arranged on the fixing piece, wherein the PET detection modules adopt the PET detection modules, and the PET detection modules are fixed on the fixing piece in a circular ring shape.
The PET detection module provided by the invention is provided with the heat dissipation assembly which is in contact with the circuit board assembly, and the heat dissipation structure is arranged on the heat dissipation assembly, so that heat generated by the PET detection module can be dissipated. The PET detection equipment provided by the invention can realize effective and stable heat dissipation and has stable detection precision.
Drawings
Fig. 1 is a perspective view of a PET detection module according to a first embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the PET detection module shown in FIG. 1.
FIG. 3 is a schematic cross-sectional view of the PET detection module of FIG. 1 from another perspective.
Fig. 4 is a schematic sectional structure view of a PET detection module according to a second embodiment of the present invention.
FIG. 5 is a schematic cross-sectional view of the PET detection module of FIG. 4 from another perspective.
Description of the main elements
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3 together, fig. 1 is a perspective view illustrating a PET detection module 100 according to a first embodiment of the present invention, fig. 2 is a schematic cross-sectional view of the PET detection module 100 shown in fig. 1, and fig. 3 is a schematic cross-sectional view of the PET detection module 100 shown in fig. 1 from another perspective, the PET detection module 100 being capable of detecting a living being, the PET detection module 100 detects radioactive substances injected into a living body in advance, preprocesses a radiation signal fed back by the radioactive substances, can detect the radioactive substances in a coordinated manner and converges the preprocessed signal into an external signal processing device, the signal is further processed by an external signal processing device, and a functional image is constructed according to the signal, so that the obtained functional image contains a plurality of physiological information in the organism, can provide help for the diagnosis and treatment of medical staff, and is widely applied to various fields such as medical treatment, scientific research and the like.
The PET detection module 100 according to the first embodiment of the present invention includes a fixing member 10, a detection member 20, a circuit board member 30, and a heat dissipation member 40. The fixing component 10 carries the detecting component 20 and limits the detecting component 20, the circuit board component 30 is located at one end of the detecting component 20 and is in heat conduction contact with the heat dissipation component 40, and the heat dissipation component 40 is connected with the circuit board component 30. The fixing assembly 10 is used for protecting the detection assembly 20 and supporting the circuit board assembly 30, the detection assembly 20 is used for detecting radioactive substances in a living body, the circuit board assembly 30 is used for receiving a radiation signal detected by the detection assembly 20 and preprocessing the radiation signal, and the heat dissipation assembly 40 extends outwards from the fixing assembly 10 for a predetermined distance and is used for dissipating heat accumulated by the circuit board assembly 30 during detection, so that the detection accuracy of the PET detection module 100 is prevented from being reduced due to overhigh temperature.
The fixing component 10 comprises a fixing plate 11 and a fixing cover 12, the fixing plate 11 is fixedly connected with the fixing cover 12, and the fixing plate 11 is arranged between the detection component 20 and the fixing cover 12 and used for fixing the detection component 20 and increasing the structural strength of the PET detection module 100. In this embodiment, the side surfaces of the fixing plates 11 are substantially wedge-shaped, the thickness of one end of the fixing plate 11 close to the circuit board assembly 30 is greater than that of the other end, the number of the fixing plates 11 is two, and the two fixing plates 11 are oppositely disposed at two ends of the detection assembly 20. The fixing cover 12 is substantially hollow and square, and is sleeved with the fixing plate 11, an opening (not shown) is disposed at one end of the fixing cover 12, the detecting component 20 is disposed in the fixing cover 12 through the opening, and a hollow cavity inside the fixing cover 12 forms an accommodating space (not shown) for accommodating the detecting component 20.
In this embodiment, two side surfaces of the fixing cover 12 contacting the fixing plate 11 are also wedge-shaped, and the two wedge-shaped side surfaces of the fixing cover 12 are used for tightly adhering to the fixing plate 11 to realize tight connection with the fixing plate 11. Wedge-shaped fixed plate 11 and fixed cover 12 make fixed subassembly 10 also have wedge-shaped outward appearance, and the thickness that the side of fixed subassembly 10 is close to the one end of radiator unit 40 is greater than the thickness of the other end, and the side of fixed subassembly 10 is from being close to radiator unit 40's one end is to keeping away from radiator unit 40's one end shrinks gradually, thereby when guaranteeing structural strength, can make a plurality of PET survey module 100 arrange and constitute PET detection equipment at the annular, has less clearance between two adjacent PET survey module 100, and PET surveys module 100 and can constitute PET detection equipment with inseparabler arrangement mode relatively, thereby improves PET detection equipment's detection precision.
It is understood that, in other embodiments, the number of the fixing plates 11 may be one or two or more, and when the arrangement of the PET detection devices formed by the plurality of PET detection modules 100 is not considered, the shape of the fixing plates 11 is not limited to the wedge shape, and may be other shapes such as a square shape, as long as the fixing plates 11 can be tightly attached to the detection assembly 20, and the side surfaces of the fixing cover 12 may be other shapes than the wedge shape, as long as the shape of the side surfaces of the fixing cover 12 is consistent with the shape of the fixing plates 11 and can be tightly attached. When the application of the PET detection module 100 does not need to be considered, the fixing plate 11 can be omitted, and the fixing cover 12 directly covers and fixes the detection assembly 20.
In the present embodiment, the fixing plate 11 and the fixing cover 12 are fixed to each other by bonding. It is understood that in other embodiments, the fixing plate 11 and the fixing cover 12 may be fixed to each other by other connection methods such as snap, rivet, welding, screwing, and the like.
In this embodiment, the fixing cover 12 is made of a carbon fiber material, so that the weight of the PET detection module 100 can be reduced while the structural strength is ensured.
The probe assembly 20 is disposed in the fixing assembly 10, and the probe assembly 20 is used for detecting a radiation signal in a living body and converting the detected radiation signal into an electrical signal that can be processed by the circuit board assembly 30. The detection assembly 20 includes a plurality of detection crystals 211, and the plurality of detection crystals 211 are arranged in parallel and form a detection crystal array 21.
In this embodiment, the detection crystals 211 are arranged in parallel along the axial direction of the PET detection module 100, and the detection crystal array 21 is disposed between the two wedge-shaped fixing plates 11. The installation direction of the detection crystal 211 is the detection direction of the PET detection module 100, and when the arrangement direction of the detection crystal 211 is identical to the axial direction of the PET detection module 100, the PET detection module 100 can be conveniently used.
It is understood that the detection crystals 211 are not limited to be installed parallel to the axis of the PET detection module 100 in the above embodiment, and in other embodiments, the detection crystals 211 may be installed in other directions as long as the detection crystals 211 can be arranged in parallel to form the detection crystal array 21.
In this embodiment, the detection crystal 211 is an LSO crystal. It is understood that in other embodiments, BaF may also be used for the probe crystal 2112Other types of crystals such as NaI.
The circuit board assembly 30 is located at one end of the fixing assembly 10 and is in heat-conducting contact with the heat dissipation assembly 40. The circuit board assembly 30 includes at least one circuit board unit for receiving and preprocessing the radiation signal detected by the probe assembly 20 and capable of transmitting the preprocessed signal to an external signal processing device.
In the present embodiment, the circuit board units in the circuit board assembly 30 include a first circuit board unit 31 and a second circuit board unit 32, the first circuit board unit 31 is disposed toward the detecting assembly 20, the first circuit board unit 31 and the second circuit board unit 32 are stacked on each other and spaced by the heat dissipating assembly 40, and the second circuit board unit 32 is electrically connected to the first circuit board unit 31. The first circuit board unit 31 is disposed between the detection assembly 20 and the heat dissipation assembly 40, a photomultiplier is disposed in the first circuit board unit 31, the first circuit board unit 31 is connected to the detection crystal array 21 in the detection assembly 20, and the first circuit board unit 31 can convert the radiation signal acquired by the detection crystal array 21 into an electrical signal that can be processed by the second circuit board unit 32.
The second circuit board unit 32 is disposed inside the heat dissipation assembly 40, and a processing chip is disposed in the second circuit board unit 32, and is capable of preprocessing the electrical signal converted by the first circuit board unit 31 and transmitting the preprocessed electrical signal to an external signal processing device, and the external signal processing device receives the electrical signal and constructs a functional image containing biological physiological information according to the electrical signal.
The first circuit board unit 31 and the second circuit board unit 32 are electrically connected through the electrical connector 33, and the electrical signal converted by the first circuit board unit 31 is transmitted into the second circuit board unit 32 through the electrical connector 33. First circuit board unit 31 and second circuit board unit 32 set up at an interval each other, and first circuit board unit 31 carries out signal conversion, and second circuit board unit 32 carries out signal preprocessing, can reduce thermal concentration degree, improves radiating efficiency with the heat dispersion on two circuit board units of the heat dispersion that circuit board assembly 30 accumulated.
It is understood that the number of the second circuit board units 32 may also be two or more, and a plurality of the second circuit board units 32 are arranged in the heat dissipation assembly 40 at intervals, so that heat can be dissipated and the heat dissipation efficiency can be further increased. When the first circuit board unit 31 and the second circuit board unit 32 are integrated into one circuit board unit, which can satisfy the requirements of the PET detection module 100 for processing performance and heat dissipation performance, the first circuit board unit 31 and the second circuit board unit 32 may also be integrated into one circuit board unit.
The heat sink assembly 40 extends outward from the fixing assembly 10 by a predetermined distance and is capable of dissipating heat generated from the PET detection module 100. The heat dissipation assembly 40 includes a substrate 41 and a heat dissipation structure 42 disposed on the substrate 41, wherein the heat dissipation structure 42 is used for accelerating heat dissipation of the substrate 41. In the present embodiment, the base 41 is substantially in a block shape, a cross section perpendicular to the central axis of the PET detection module 100 is substantially in a rectangular shape, a cross section parallel to the central axis of the PET detection module 100 is substantially in a shape of a Chinese character 'tu', two ends of the base 41 extend outwards and form two protrusions 411, each protrusion 411 is provided with a connection hole 412, and the two connection holes 412 are screwed with an external threaded fastener for screwing in the external threaded fastener, so as to fix the base 41 and the external fixture to each other.
It is understood that the shape of the base 41 is not limited to the shape defined in the above embodiments, and may also be other shapes such as a cylinder, a truncated cone, etc., the number of the connection holes 412 formed in the base 41 is not limited to two in the above embodiments, and may also be one or more than two, as long as it can ensure the mutual fixing of the base 41 and the external fixing member, and the base 41 may also be fixed to the external fixing member by other connection methods such as a snap, welding, electromagnetic absorption, etc. When the base 41 is fixed to the external fixing member by other connection means such as snap, welding, electromagnetic absorption, etc., the connection hole 412 may be omitted.
In this embodiment, the heat dissipation structure 42 is a heat dissipation channel 421 disposed on the substrate 41, the heat dissipation channel 421 is disposed inside the substrate 41, and two ends of the heat dissipation channel 421 form an opening on the surface of the substrate 41, the heat dissipation channel 421 penetrates into the substrate 41 and penetrates out of the substrate 41, a fluid (not shown) for cooling the heat dissipation assembly 40 is disposed in the heat dissipation channel 421, and the fluid can take away heat transferred from the circuit board assembly 30 to the heat dissipation assembly 40, so as to reduce the temperature of the PET detection module 100, so that the PET detection module 100 can maintain a reliable and stable heat dissipation function, and reduce the influence of the temperature on the detection accuracy.
In the present embodiment, the heat dissipation flow channel 421 includes a first edge 4211, and a second edge 4212 and a third edge 4213 perpendicular to the first edge 4211, the second edge 4212 and the third edge 4213 are both perpendicular to the first edge 4211, the second edge 4212 and the third edge 4213 are parallel to each other, an opening direction of the second edge 4212 and the third edge 4213 substantially coincides with a central axis direction of the PET detection module 100, an opening direction of the first edge 4211 is substantially perpendicular to the central axis direction of the PET detection module 100, the first edge 4211 in the heat dissipation flow channel 421 is opened adjacent to a side surface of the base 41 facing the circuit board assembly 30, by reducing the distance from the circuit board assembly 30, the heat dissipation efficiency of the circuit board assembly 30 is improved, the close distance between the opening position of the heat dissipation channel 421 and the end surface will reduce the structural strength of the substrate 41, therefore, the heat dissipation channel 421 needs to be provided at a proper position on the substrate 41 to ensure the structural strength of the substrate 41 and improve the heat dissipation efficiency of the circuit board assembly 30.
It is understood that the heat dissipation channel 421 is not limited to the shape of the above embodiments, and in other embodiments, the heat dissipation channel 421 may also have a channel structure with other shapes, such as a curved channel and a mesh channel. In this embodiment, the number of the heat dissipation flow channels 421 is one. It is understood that, in other embodiments, the number of the heat dissipation flow channels 421 may also be two or more, and when the number of the heat dissipation flow channels 421 is two or more, the heat dissipation flow channels 421 may have a plurality of openings.
In this embodiment, the heat dissipation assembly 40 further includes a semiconductor cooling plate 43 and a heat dissipation plate 44, the semiconductor cooling plate 43 is disposed between the substrate 41 and the heat dissipation plate 44, one end of the semiconductor cooling plate 43 is connected to the second circuit board unit 32 and the heat dissipation plate 44 in the circuit board assembly 30, and the other end of the semiconductor cooling plate is connected to the substrate 41, the semiconductor cooling plate 43 is made of a semiconductor material and has a heat pump function, and absorbs heat at one end close to the circuit board assembly 30 and releases heat at one end far away from the circuit board assembly 30 by using the Peltier effect of the semiconductor material, and the heat released by the semiconductor cooling plate 43 is dissipated through the substrate 41, so as to further improve the heat dissipation efficiency of the circuit board assembly 30, and enable the temperature of the heat dissipation assembly 40 to be lower. In other embodiments, the semiconductor cooling sheet 43 may be omitted when the heat dissipation structure 42 can meet the heat dissipation requirement of the PET detection module 100.
The heat dissipation plate 44 is accommodated in the fixing assembly 10, one end of the heat dissipation plate 44 is in heat-conducting contact with the first circuit board unit 31, and the other end of the heat dissipation plate 44 is connected to the semiconductor cooling plate 43 and the second circuit board unit 32, the heat dissipation plate 44 is substantially in a shape of a "concave", a groove 441 is formed on the upper surface of the heat dissipation plate along a direction perpendicular to the central axis of the PET detection module 100, the groove 441 is used for accommodating the second circuit board unit 32, and a through hole (not numbered) is formed at the bottom of the groove 441 and accommodates the electrical connector 33 connected to the first circuit board unit.
The heat dissipation plate 44 is made of a heat conductive material, and one end of the heat dissipation plate is in contact with the first circuit board unit 31, so that heat of the first circuit board unit 31 can be transferred to the heat dissipation structure 42, and the heat of the first circuit board unit 31 can be dissipated through the heat dissipation structure 42. The second circuit board unit 32 can directly transfer heat to the heat dissipation structure 42, the heat of the second circuit board unit 32 is dissipated through the heat dissipation structure 42, when the semiconductor cooling plate 43 is arranged between the second circuit board unit 32 and the base body 41, the second circuit board unit 32 firstly dissipates part of the heat through the semiconductor cooling plate 43, and then transfers the residual heat to the heat dissipation structure 42, so that the heat dissipation of the second circuit board unit 32 by the heat dissipation structure 42 is realized. When the semiconductor cooling plate 43 is not needed to further dissipate heat of the circuit board assembly 30, the heat dissipation plate 44 may also be integrally formed with the base 41, and the heat dissipation plate 44 and the base 41 are integrally formed to improve convenience of installation.
When the circuit board assembly 30 has a plurality of circuit board units, the plurality of circuit board units may be stacked at intervals via the heat dissipation plates 44, and both ends of each heat dissipation plate are connected to one circuit board unit, thereby increasing the heat dissipation capability of the heat dissipation assembly 40; the circuit board units can also be directly embedded into the base body 41 of the heat dissipation assembly 40, at this time, corresponding grooves for accommodating the circuit board units are formed in the base body 41, one circuit board unit is accommodated in each groove, and at this time, the heat dissipation plate 44 and the base body 41 are integrally formed.
Referring to fig. 4 to 5, fig. 4 is a schematic cross-sectional view of a PET detection module 100a according to a second embodiment of the invention, and fig. 5 is a schematic cross-sectional view of another view of the PET detection module 100a shown in fig. 4.
The PET detection module 100a in the second embodiment of the present invention also includes a fixing component 10a, a detection component 20a, a circuit board component 30a and a heat dissipation component 40a, and the structures and the connection relationships among the fixing component 10a, the detection component 20a and the circuit board component 30a are the same as those of the fixing component 10, the detection component 20 and the circuit board component 30 in the PET detection module 100 in the first embodiment, and are not described herein again. The connection relationship between the heat dissipation assembly 40a and the fixing assembly 10a, the detection assembly 20a and the circuit board assembly 30a is the same as the connection relationship between the heat dissipation assembly 40 and the fixing assembly 10, the detection assembly 20 and the circuit board assembly 30, and further description thereof is omitted here.
The heat dissipating assembly 40a also includes a base 41a and a heat dissipating structure 42a disposed on the base 41a, two ends of the base 41a extend outward to form two protrusions 411a, and each protrusion 411a is also opened with a connecting hole 412a for fixing an external threaded fastener.
In this embodiment, the heat dissipation structure 42a is a plurality of heat dissipation fins 422, the plurality of heat dissipation fins 422 are arranged in parallel to form an array, and the plurality of heat dissipation fins 422 in the array are protruded on the substrate. In the present embodiment, the mounting direction of the heat sink 422 and the central axis direction of the PET detection module 100a are parallel to each other. It is to be understood that the heat sink 422 is not limited to the installation direction in the above-described embodiment, and in other embodiments, the heat sink 422 may be installed to be inclined to the central axis direction of the PET detection module 100 a.
The heat radiating fins 422 are in direct contact with the outside air, and can radiate the heat accumulated on the PET detection module 100a outwards, so that the temperature of the PET detection module 100a is reduced, the PET detection module 100a can keep a reliable and stable heat radiation function, and the influence of the temperature on the detection precision is reduced.
In this embodiment, the two components can be directly attached to each other to achieve heat conduction contact. It is understood that in other embodiments, the two components may be connected to each other by other heat conducting transition elements such as heat conducting glue to achieve heat conducting contact.
The invention also provides PET detection equipment adopting the PET detection module, the PET detection equipment comprises a fixing piece and a plurality of PET detection modules arranged on the fixing piece, and the plurality of PET detection modules are arranged on the fixing piece in a circular ring shape.
The PET detection module provided by the invention is provided with the heat dissipation component 40 which is in contact with the circuit board component 30, and the heat dissipation structure is arranged on the heat dissipation component 40, so that the heat generated by the PET detection module can be dissipated. The PET detection equipment provided by the invention can realize effective and stable heat dissipation and has stable detection precision.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A PET detection module is characterized by comprising a fixing component, a detection component, a circuit board component and a heat dissipation component, wherein the fixing component limits the detection component, the circuit board component is positioned at one end of the detection component and is in heat conduction contact with the heat dissipation component, the heat dissipation component extends out of the fixing component for a preset distance, and the heat dissipation component can dissipate heat generated by the PET detection module;
the heat dissipation assembly comprises a base body and a heat dissipation structure arranged on the base body, wherein the heat dissipation structure is used for accelerating heat dissipation of the base body, the heat dissipation structure is a heat dissipation flow channel, the heat dissipation flow channel is arranged in the base body, openings are formed in the surface of the base body at two ends of the heat dissipation flow channel, cooling fluid can be introduced into the heat dissipation flow channel, the heat dissipation assembly further comprises a heat dissipation plate, and the heat dissipation plate is in heat conduction contact with the circuit board assembly;
the circuit board assembly comprises at least one circuit board unit, the circuit board unit comprises a first circuit board unit and a second circuit board unit, the first circuit board unit faces the detection assembly, the first circuit board unit and the second circuit board unit are mutually overlapped, and the first circuit board unit and the second circuit board unit are separated by the heat dissipation plate.
2. The PET detection module of claim 1, wherein the circuit board unit has one side facing the detection assembly and another side in thermally conductive contact with the heat sink assembly.
3. The PET detection module of claim 1, wherein the circuit board unit further includes an electrical connector disposed within the heat dissipation plate, the first circuit board unit and the second circuit board unit being electrically connected through the electrical connector.
4. The PET detection module of claim 1, wherein the side of the fixing member is wedge-shaped, the side of the fixing member has a thickness greater at one end close to the heat dissipation member than at the other end, and the side of the fixing member gradually shrinks from the end close to the heat dissipation member to the end far away from the heat dissipation member.
5. The PET detection module of claim 1 wherein the heat spreader plate is positioned within a fixture assembly capable of conducting heat from the circuit board assembly to the substrate.
6. The PET detection module of claim 1, wherein the heat dissipation assembly further comprises a semiconductor chilling plate disposed between the base and the heat dissipation plate, the semiconductor chilling plate for cooling the circuit board assembly.
7. A PET detection device, which comprises a fixing member and a plurality of PET detection modules arranged on the fixing member, and is characterized in that the PET detection modules adopt the PET detection modules according to any one of claims 1 to 6, and the PET detection modules are fixed on the fixing member in a circular ring shape.
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| CN201711447852.5A CN108186040B (en) | 2017-12-27 | 2017-12-27 | PET detection module and PET detection device with same |
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| CN201711447852.5A CN108186040B (en) | 2017-12-27 | 2017-12-27 | PET detection module and PET detection device with same |
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| WO2020232563A1 (en) * | 2019-05-17 | 2020-11-26 | Shanghai United Imaging Healthcare Co., Ltd. | System and method for pet imaging |
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