CN103479372B - Detector assembling device, support annulus and transmitting imaging device - Google Patents
Detector assembling device, support annulus and transmitting imaging device Download PDFInfo
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- CN103479372B CN103479372B CN201310362169.7A CN201310362169A CN103479372B CN 103479372 B CN103479372 B CN 103479372B CN 201310362169 A CN201310362169 A CN 201310362169A CN 103479372 B CN103479372 B CN 103479372B
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Abstract
The invention provides a kind of detector assembling device, support annulus and launch imaging device.This detector assembling device comprises main body and detector.The first surface be oppositely arranged and second surface of main body are respectively arranged with the first connecting portion and the second connecting portion, for main body is connected to launch imaging device adjacent support annulus between.Main-body structure is make first surface and second surface be positioned at same plane with the side of adjacent support annulus respectively when detector assembling device is mounted to and supports annulus.Detector comprises detecting unit, and is connected to the bottom of main body.Adjacent support annulus can couple together by this detector assembling device, to be formed in the axially extendible transmitting imaging device supporting annulus, is also convenient to the installation and removal of detector, is therefore convenient to safeguard transmitting imaging device.In addition, detector means configuration and the corresponding annulus that supports can also be made into standard component, reduce costs.
Description
Technical field
The present invention relates to transmitting imaging system, particularly, relating to a kind of detector assembling device for launching imaging device, for launching the support annulus of imaging device and there is this detector assembling device and support the transmitting imaging device of annulus.
Background technology
The transmitting imaging device comprising Positron emission tomography equipment is used to medical diagnosis.For Positron emission tomography equipment, in its positron and human body of utilizing positron isotopes to decay to produce, negatron is die out the phenomenon of effect, lead in human body the compound injected with positron isotopes labelling, adopt the method for complex probe, detector is utilized to detect the γ photon that effect produces of dieing out, obtain isotopic distributed intelligence in human body, carry out reconstruction combinatorial operation by computer, thus obtain the three-dimensional tomographic image of human body internal labeling compound distribution.
As can be seen here, in order to improve the sensitivity of detection, this transmitting imaging device should make detector detect all emitting substances (such as γ photon) as far as possible.The detector launching imaging device is generally be arranged on to support on annulus, and the quantity supporting annulus determines the axial visual field of launching imaging device.Support annulus more, the axial visual field of launching imaging device is larger, and the detection signal that single pass obtains is more, and the sensitivity of testing result is higher.The axis of existing transmitting imaging device is generally only 20cm, and this can affect the sensitivity of testing result.
Therefore, be necessary to propose a kind of detector assembling device, support annulus and launch imaging device, to solve problems of the prior art.
Summary of the invention
According to an aspect of the present invention, a kind of detector assembling device for launching imaging device is provided.Described detector assembling device comprises: main body, the first surface be oppositely arranged and second surface of described main body are respectively arranged with the first connecting portion and the second connecting portion, for described main body is connected to launch imaging device adjacent support annulus between, described main-body structure is make described first surface and described second surface be positioned at same plane with the side of adjacent described support annulus respectively when described detector assembling device is mounted to described support annulus; And detector, described detector comprises detecting unit, and described detector is connected to the bottom of described main body.
Preferably, described main body comprises plate and supporting plate, described first connecting portion and described second connecting portion are separately positioned on be oppositely arranged two sides of described plate, described supporting plate comprises first end and the second end, described detector is connected to described first end, and described second end is removably connected to described plate.
Further preferably, described plate is provided with the slot along downward-extension on described plate, described slot structure can insert in described slot for making described second end.
Preferably, described first connecting portion and described second connecting portion are configured to the projection that extends along the direction vertical with described plate in described two sides be oppositely arranged of described plate respectively.
Preferably, described detector has the size of convergent in the cross section being parallel to described first surface and described second surface along the direction away from described main body.
Preferably, described detector comprises multiple described detecting unit, and multiple described detecting unit arranges along the direction vertical with described second surface with described first surface, and adjacent described detecting unit contacts with each other.
Further preferably, at least one in multiple described detecting unit is between described first surface and described second surface.
Further preferably, the both sides of described detector protrude from described first surface and described second surface respectively, or the side of described detector protrudes from described first surface and opposite side flushes with described second surface.
Further preferably, the size sum that described detector protrudes from described first surface and described second surface equals the width of described support annulus.
According to another aspect of the present invention, also provide a kind of and launch imaging device.Described transmitting imaging device comprises: at least two support annulus, and described support annulus is arranged along the axial concentric parallel of described support annulus, and two sides of each described support annulus are provided with junction surface; And any one detector assembling device above-mentioned, described detector assembling device is between adjacent described support annulus, described first connecting portion on described detector assembling device and described second connecting portion engage with the junction surface on adjacent described support annulus respectively, to connect adjacent described support annulus by described detector assembling device, wherein said detector is positioned at the inner circumferential side of described support annulus.
Preferably, each side of described support annulus is provided with multiple described junction surface, multiple described junction surface arranges equably along the circumference of described support annulus, and the distance between described junction surface is configured to the inner circumferential side close-packed arrays making described detector at described support annulus.
Preferably, described first connecting portion and the joint construction between described second connecting portion and described junction surface are socket connection.
Preferably, within described detector assembling device is embedded in the outer surface of described support annulus, to form the radiating groove of the circumference along described multiple support annulus.
Preferably, each described support annulus is provided with the corresponding through hole in position, described through hole axially extends along the described of described support annulus.
Preferably, described transmitting imaging device also comprises screening arrangement, and described screening arrangement can be inserted between adjacent described detecting unit.
Preferably, described transmitting imaging device also comprises calibrating installation, and it comprises: ring-shaped guide rail, and described ring-shaped guide rail is removably disposed in and is positioned on axial outermost described support annulus; Slide block, described slide block is arranged on described ring-shaped guide rail, and described slide block can slide along the circumference of described ring-shaped guide rail; And probe, described probe is connected to described slide block in the inner circumferential side of described ring-shaped guide rail, and in the space that surrounds of the inner peripheral surface that can stretch into described support annulus.
According to another aspect of the invention, a kind of support annulus for launching imaging device is also provided.Two sides of described support annulus are provided with junction surface, wherein said interface architecture for can with first connecting portion as described in any one detector assembling device above-mentioned and as described in the second connecting portion engage.
Preferably, each side of described support annulus is provided with multiple described junction surface, multiple described junction surface arranges equably along the circumference of described support annulus, and the distance between described junction surface is configured to make described detector at the inner circumferential side close-packed arrays of described support annulus when described detector assembling device is mounted to described support annulus.
Preferably, described junction surface is the groove being arranged on the side of described support annulus along the radial direction of described support annulus.
Adjacent support annulus can be coupled together according to detector assembling device provided by the invention, to be formed in the axially extendible transmitting imaging device supporting annulus.This kind of structure can also install easily when detector assembling device is mounted to and supports annulus, dismantle detector, is therefore convenient to safeguard transmitting imaging device.In addition, the benefit that this kind of structure is brought also comprises and detector means configuration and the corresponding annulus that supports can be made into standard component, user can be bought the detector means configuration of some as required and support annulus, and can reduce the cost of the aspects such as manufacture, transport, storage for Producer.
In summary of the invention, introduce the concept of a series of reduced form, this will further describe in detailed description of the invention part.Content part of the present invention does not also mean that the key feature and essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain attempting to determine technical scheme required for protection.
Below in conjunction with accompanying drawing, describe advantages and features of the invention in detail.
Accompanying drawing explanation
Following accompanying drawing of the present invention in this as a part of the present invention for understanding the present invention.Shown in the drawings of embodiments of the present invention and description thereof, be used for explaining principle of the present invention.In the accompanying drawings,
Fig. 1 is the schematic diagram of detector assembling device according to an embodiment of the invention;
Fig. 2 is the schematic diagram of the support annulus according to an invention embodiment
Fig. 3 is the schematic diagram that detector assembling device is connected between two support annulus be arranged side by side;
Fig. 4 is the partial schematic diagram that detector assembling device is mounted to the support annulus launching imaging system;
Fig. 5 is the schematic diagram launching imaging device according to an embodiment of the invention;
Fig. 6 is the schematic diagram launching imaging device in accordance with another embodiment of the present invention; And
Fig. 7 is the schematic diagram of the transmitting imaging device according to another embodiment of the present invention.
Detailed description of the invention
In the following description, a large amount of concrete details is given to provide more thorough understanding of the invention.But, it will be apparent to one skilled in the art that the present invention can be implemented without the need to these details one or more.In other example, in order to avoid obscuring with the present invention, technical characteristics more well known in the art are not described.
In order to thoroughly understand the present invention, by following description, detailed structure is proposed.Obviously, embodiments of the invention are not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present invention is described in detail as follows, but except these are described in detail, the present invention can also have other embodiments.
According to an aspect of the present invention, a kind of detector assembling device (hereinafter referred to as " detector assembling device ") for launching imaging device is provided.Be described in detail below in conjunction with the embodiment of accompanying drawing to detector assembling device provided by the invention.
Fig. 1 shows the schematic diagram of detector assembling device 100 according to an embodiment of the invention.As shown in Figure 1, detector assembling device 100 comprises main body 110 and detector 120.Main body 110 is for carrying detector 120, and main body 110 can have any structure that can realize its bearing function, and is not limited to the structure shown in Fig. 1.In addition, the detector 120 shown in Fig. 1 comprises two detecting units 121 and 122, and for the ease of understanding the concrete structure of detector assembling device 100, detecting unit 121 is in the state of not installing completely.
On the first surface (not shown) be oppositely arranged and second surface (not shown) of main body 110, be respectively arranged with the first connecting portion 111 and the second connecting portion 112, for main body 110 is connected to launch imaging device adjacent support annulus between.Fig. 2 is the schematic diagram of the support annulus 200 according to an invention embodiment.As shown in Figure 2, the side supporting annulus 200 is provided with junction surface 210.This junction surface 210 is for coordinating with first connecting portion 111 and the second connecting portion 112 of detector assembling device 100.Fig. 3 shows detector assembling device 100 and is connected to schematic diagram between two support annulus be arranged side by side.For the ease of clearly describing detector assembling device 100 and adjacent two annexations supported between annulus, in figure 3 two being supported annulus and being called the first support annulus 200A and second support annulus 200B.With reference to Fig. 1 and Fig. 3, the junction surface that the first connecting portion 111 can support annulus 200A side with first is connected, and the junction surface that the second connecting portion 112 can support annulus 200B side with second is connected.Adjacent support annulus can be coupled together by detector assembling device 100 like this, to be formed in the axially extendible transmitting imaging device supporting annulus.
Detector assembling device 100 clearly can be observed by Fig. 4 with the above-mentioned annexation supporting annulus.Fig. 4 is the partial schematic diagram that detector assembling device 100 is mounted to the support annulus launching imaging system, and particularly, Fig. 4 is the schematic perspective view from the radial outside viewing supporting annulus.With Fig. 3 unlike, in order to know object, schematically illustrating in Fig. 4 and only the situation of a detector assembling device 100 being installed.But, in practice, two adjacent support annulus 200A and 200B can install multiple detector assembling device 100.As shown in Figure 4, the first junction surface 210A supporting annulus 200A coordinates with the first connecting portion 111 on first surface, and the second joint portion 210B supporting annulus 200B coordinates with the second connecting portion 112 on second surface.Although as the connecting portion 111,112 shown in 4 and junction surface 210A, 210B are respectively the projection and groove that can be combined with each other, the present invention is not limited to this.
In addition, it should be noted that, the surface that " first surface " mentioned here and " second surface " not can be seen in some cases.When detector assembling device 100 be mounted to support annulus 200 time, what first surface and second surface were respectively main body 110 is positioned at the surface of same plane with the side of adjacent support annulus 200.Such as in the diagram, first surface for from dotted line A-A ' along first support annulus 200A support with second the surface that the relative side cutting main body 110 of annulus 200B obtains, second surface for from dotted line B-B ' along second hold round ring 200B support with first the surface that the relative side cutting main body 110 of annulus 200A obtains.Region between first surface and second surface corresponds to the region between adjacent support annulus 200.
Return see Fig. 1, detector 120 is connected to the bottom of main body 110, such as, for detecting the emitting substance launched and produce in image checking process, the γ photon in Positron emission tomography system.It should be noted that, " bottom " mentioned here is comparatively speaking, detector 120 is arranged on main body 110 one end along the direction of arrow A in Fig. 1, during to ensure between adjacent support annulus 200A and 200B that detector assembling device 100 is mounted to imaging emission system as illustrated in fig. 3, detector 120 is positioned at the inner circumferential side supporting annulus.Foregoing, detector 120 comprises detecting unit.Detecting unit can be one, also can be multiple.Exemplarily, according to one embodiment of present invention, detector comprises two detecting units 121 and 122.In using, when certain detector or detecting unit break down, only need to remove this detector or detecting unit individually, and whole detector assembling device 100 need not be removed, even do not need main body 110 to disassemble from support annulus.
The component that main body 110 can be integrated also can be the component of split.Preferably, main body 110 can comprise plate 113 and supporting plate 114.See Fig. 1, the first connecting portion 111 and the second connecting portion 112 are separately positioned on be oppositely arranged two sides of plate 113.It should be noted that " two sides " mentioned here can lay respectively on " first surface " and " second surface " above.Supporting plate 114 can comprise first end 114A and the second end 114B.Detector 120 can be connected to first end 114A, and the second end 114B is then removably connected to plate 113.During installation or removal detector assembling device 100, plate 113 can be installed separately or dismantle with supporting plate 114 and the detector 120 be connected on supporting plate 114.Can as illustrated in fig. 1, main body 110 comprises the supporting plate 114 corresponding with the quantity of detecting unit 121 and 122, and a detecting unit 121 or 122 is only connected to plate 113 by each supporting plate 114.When detector assembling device 100 comprises multiple detecting unit, also can provide the supporting plate 114 of the quantity being less than detecting unit, multiple detecting unit can be connected to plate 113 by each supporting plate 114.Certainly, each detecting unit the supporting plate 114 more than the quantity of detecting unit also can be provided, so that can be connected to plate 113 by multiple supporting plate 114.
The mode that second end 114B of supporting plate 114 is connected to plate 113 can have multiple, such as bonding, riveted joint and grafting etc.Preferably, plate 113 is provided with the slot 113A extended along plate about 113 (for arrow A).Wherein slot 113A is constructed so that the second end 114B of supporting plate 114 can insert in slot 113A, thus supporting plate 114 is connected to plate 113 by the mode of grafting.Certainly, in this case, can also rivet and/or screw etc. additionally be used strengthen the connection between supporting plate 114 and plate 113.Supporting plate 114 is connected to plate 113 by the mode of grafting, when detector assembling device 100 is mounted on support annulus, and can easily along the radial direction installation or removal supporting plate 114 supporting annulus and the detector 120 be connected on supporting plate 114.
Preferably, first connecting portion 111 and the second connecting portion 112 are configured to the projection (as shown in Figure 4) extended along the direction vertical with plate 113 in be oppositely arranged two sides of plate 113 respectively, namely protrude to the front and back of plate 113 in the side of plate 113.Wherein front is towards upper surface in Fig. 1, the back side then with this vis-a-vis.This projection can match with junction surface 210A and 210B on support annulus 200A and 200B mentioned above, detector assembling device 100 is connected to and supports on annulus 200A and 200B, particularly more stable in the connection axially supporting annulus 200A and 200B.
Preferably, detector 120 has the size of convergent in the cross section being parallel to above-mentioned first surface and second surface along the direction away from main body 110.See Fig. 3, detector 120 is in wedge shape.When detector assembling device 100 is mounted to support annulus 200A and 200B, direction radially inside on the face parallel with the side (side surface namely shown in Fig. 3) supporting annulus 200A with 200B has the size of convergent.When multiple detector assembling device 100 is mounted to support annulus 200, because the interior volume supporting annulus 200 encirclement is cylindrical, therefore can make between adjacent detector can close-packed arrays for this structure of detector 120, receive more detection signal, make testing result more accurate.
As described above, detector 120 can comprise a detecting unit, also can comprise multiple detecting unit.Preferably, detector 120 comprises multiple detecting unit.Exemplarily, as shown in fig. 1, two detecting units 121,122 are comprised.In the present invention's other embodiments unshowned, detecting unit can also be three, four even more.In practice, can only dismantle as required or change one of them detecting unit, and not by detector 120 even detector assembling device 100 integral demounting.Multiple detecting unit 121,122 arranges along the direction vertical with second surface with first surface, and adjacent detecting unit 121,122 contacts with each other, to make multiple detecting unit 121,122 close-packed arrays.When detector assembling device 100 is mounted to support annulus, the direction vertical with second surface with first surface is the axis supporting annulus.
When detector assembling device 100 being installed between two support annulus 200, when detector 120 has the size of convergent along the direction away from main body 110 in the cross section being parallel to above-mentioned first surface and second surface, because the installing space of last detector assembling device 100 is limited, therefore can not install from support annulus 200 inner circumferential side, and when installing from the outer circumferential side supporting annulus 200, detector 120 can be subject to again the stop of the wall supporting annulus 200, see Fig. 4.Therefore, preferably, at least one in multiple detecting unit 121,122 is between first surface and second surface.As mentioned above, because first surface and second surface are positioned at same plane with the side of adjacent support annulus 200A and 200B respectively, therefore this kind of set-up mode of multiple detecting unit 121,122 can make at least one (detecting unit 121 such as, in Fig. 4) in multiple detecting unit 121,122 completely between two adjacent support annulus 200A and 200B.Therefore, when installing or removing multiple detecting unit 121,122 from the outer circumferential side supporting annulus 200A and 200B along the radial direction supporting annulus 200, one (detecting unit 121 such as, in Fig. 4) is had at least can not to be subject to support the stop of annulus 200.Such as in the embodiment show in figure 4, detecting unit 121 is completely between two adjacent support annulus 200A and 200B, and a part for detecting unit 122 is positioned at the inner circumferential side that supports annulus 200A and is stopped by support annulus 200A.When the preferred embodiment provided by the invention, if for the already installed detecting unit 122 of dismounting, from the outer circumferential side supporting annulus 200A and 200B, detecting unit 121 can disassembled, and then main body 110 is being disassembled, namely can detecting unit 122.If for installing last the detector assembling device 100 in circumference, the inverse process of above-mentioned unloading process can be performed.Particularly, detecting unit 122 is placed on its preposition in advance, then from outer circumferential side, main body 100 is installed, finally load detecting unit 121 from outer circumferential side again.
At least one in multiple detecting units 121,122 of detector 120 is between first surface and second surface, further preferably, the both sides of detector 120 can protrude from first surface and second surface respectively, or the side of detector 120 protrudes from first surface and opposite side flushes with second surface.This structure of detector 120 not only can make detector cover two axial region supported between annulus 200 completely, but also support annulus 200 inwall can be covered at least partially, make the region of reception detection signal larger, and then improve the sensitivity of launching imaging device.
Preferably, the size sum that detector 120 protrudes from first surface and second surface equals the width supporting annulus 200.In this case, when multiple detector assembling device 100 is arranged between multiple support annulus 200, the projection of the detector 120 of two adjacent detector assembling devices 100 just in time closely can be booked and support annulus 200 inwall vertically, make the arrangement between detector 120 tight, thus can not detection signal be missed, make testing result more accurate.It is zero that situation about flushing with second surface at the opposite side of detector 120 can be understood as the width protruding from second surface.
The present invention also provides a kind of support annulus 200 for launching imaging device.As shown in Figure 2, two sides supporting annulus 200 are provided with junction surface 210.Wherein this junction surface 210 is configured to engage with the first connecting portion 111 of above-mentioned detector assembling device 100 and the second connecting portion 112.First connecting portion 111 of detector assembling device 100 is connected between two adjacent support annulus 200A and 200B, as shown in Figure 3.Like this, multiple support annulus can be connected by supporting annulus with the repeated arrangement of detector assembling device, obtain the prolongable transmitting imaging device 300 of axis shown in Fig. 5.The further structure of launching imaging device 300 will be described in more detail below.
Preferably, return see Fig. 2, the each side supporting annulus 300 is provided with multiple junction surface 210, multiple junction surface 210 arranges equably along the circumference supporting annulus 300, distance between junction surface 210 is configured to make detector 120 at the inner circumferential side close-packed arrays supporting annulus when detector assembling device 100 is mounted to and supports annulus 200, as shown in Figure 3.Multiple junction surface 210 can connect multiple detector assembling device 100, and this kind of make between multiple junction surface 210 can make on multiple detector assembling device 100 between multiple detectors 120 close-packed arrays, thus can acquisition emitting substance as much as possible, improve sensitivity.
As described above, the first connecting portion 111 and the second connecting portion 112 can be configured to the projection that extends along the direction vertical with plate 113 in be oppositely arranged two sides of plate 113.Correspondingly, as shown in Figure 2, junction surface 210 also can be set to the groove being arranged on the side supporting annulus 200 along the radial direction supporting annulus 200.This groove can coordinate with the first connecting portion 111 and the second connecting portion 112, facilitates the installation and removal of detector assembling device 100.
The present invention also provides a kind of and launches imaging device 300.This transmitting imaging device 300 includes but not limited to comprise Positron emission tomography equipment, as long as need the transmitting imaging device utilizing detector to receive the emitting substance that detected object (such as human body) produces to be included within protection scope of the present invention.As shown in Figure 5, launch imaging device 300 and comprise at least two support annulus 200 as described above and detector assembling device 100 as described above.Wherein support annulus 200 to arrange along the axial concentric parallel supporting annulus 200, two sides of each support annulus 200 are provided with junction surface 210.Detector assembling device 100 is between adjacent support annulus 200.The first connecting portion 111 on detector assembling device 100 and the second connecting portion 112(are see Fig. 1 and Fig. 2) engage with the junction surface 210 on adjacent support annulus 200 respectively, to connect adjacent support annulus 200 by detector assembling device 200.Detector 120 wherein in detector assembling device 100 is positioned at the inner circumferential side supporting annulus 200.When utilizing this transmitting imaging device 300 to monitor, detected object is positioned at and supports the columniform space that formed of annulus, and like this, the detector 120 being arranged on inner circumferential side can collect the emitting substance that detected object produces.The structure of detector assembling device 100 is described in detail hereinbefore, here for simplicity, repeats no more.Axis according to transmitting imaging system 300 of the present invention can carry out extended length as required, connect support annulus 200 and the detector assembling device 100 of varying number, the axial visual field of launching imaging device 300 increases, the quantity of detector also increases, and improves the sensitivity of launching imaging device 300.This structure can facilitate the installation and removal of detector assembling device 100, when one or several detector or detecting unit break down and need to change, only can dismantle the detector or detecting unit that break down especially wherein, therefore be convenient to safeguard.
Joint between first connecting portion of detector assembling device 100 and the second connecting portion and the junction surface 210 supporting on annulus 200 can have various ways, such as, rivet, be spirally connected.Preferably, the joint construction of the first connecting portion and the second connecting portion and joint portion 210 is socket connection.Such as, as above, the first connecting portion and the second connecting portion can be configured to projection, and junction surface 210 can be configured to the groove that can match with above-mentioned projection along the radial direction extension supporting annulus 200.Socket connection can facilitate the installation and removal of detector assembling device 100.
Launch imaging device 300 and operationally usually can produce a large amount of heats, for thermally sensitive detector, launching the heat produced in imaging device 300 can produce certain influence to testing result.In one embodiment, launch on imaging device 300 and can be provided with heat abstractor, such as radiating groove.Radiating groove can along on the outer surface being axially disposed within support annulus supporting annulus 200.But this kind of mode may affect the rigidity supporting annulus 200, certainly, this rigidity can be compensated by the axis thickness and/or radial width increasing support annulus 200, but will certainly consider to disagree with cost-saving business.
Therefore, the invention provides a kind of preferred embodiment, within detector assembling device 100 is embedded in the outer surface supporting annulus 200, namely detector assembling device 100 is less than the external diameter supporting annulus 200 relative to the ultimate range of the axis supporting annulus 200.Like this, the radiating groove (not shown) that can form the circumference along support annulus 200 between annulus 200 is supported at two of arbitrary neighborhood.When launching imaging device 300 and working, the auxiliary facilities such as fan can be utilized to carry cold air along the arrow B shown in Fig. 6 to transmitting imaging device 300, under the effect of cold air, hot-air upwards can flow along the radiating groove of the circumference supporting annulus 200, the direction flowing namely in Fig. 6 shown in arrow C.Hot-air converges in the top supporting annulus 200, drives hot-air to leave transmitting imaging device along the direction flowing shown in arrow D like this by other auxiliary facilities.The radiating groove away from the circumference extension be provided with along support annulus 200 that the preferred embodiment utilizes hot-air naturally upwards to flow, can improve radiating efficiency, and not have an impact to the rigidity supporting annulus 200.In addition, the above-mentioned description to supplemental heat rejected facility and air-flow flow direction is only exemplary, and the present invention is not limited to this mode.
In addition, distributed heat galvanic couple can also be utilized to test the temperature supporting annulus 200 and detector 120 respectively, realize the closed loop control of temperature.
When launching imaging device 300 and having multiple support annulus 200, the center of circle of multiple support annulus 200 may can not be aimed at completely in installation process.Therefore, preferably, each support annulus 200 can be provided with the through hole (not shown) that position is corresponding, through hole extends along the axis supporting annulus 200.Like this, the concentric alignment of multiple support annulus 200 can be carried out by additional other devices (such as, light beam).Particularly, can utilize light beam whether can be whether concentric to judge multiple support annulus 200 through the through hole of corresponding section, position.In addition, as this transmitting imaging device 300(such as Positron emission tomography equipment PET) integrated with other imaging device (such as ct apparatus CT) time, through hole can also be used for the mechanical register between two cover imaging devices.This concentric alignment apparatus structure is simple.Each support annulus can arrange one or more through hole, but preferably, each support annulus is provided with multiple through hole, to improve the concentricity of multiple support annulus 200.
Support annulus 200 and also likely slight deformation occurs in installation process.Therefore, preferably, as shown in Figure 7, launch imaging device 300 and also comprise calibrating installation 310.Calibrating installation 310 comprises ring-shaped guide rail 311, slide block 312 and probe 313.Wherein, ring-shaped guide rail 311 is removably disposed in and is positioned at axially on outermost described support annulus 200.When needs are calibrated, calibrating installation 310 is mounted on axial outermost support annulus 200 by ring-shaped guide rail 311, after calibration, calibrating installation 310 can be removed from support annulus 200, not affect the normal work of launching imaging device 300.Slide block 312 is arranged on ring-shaped guide rail 310, and can slide along the circumference of ring-shaped guide rail 310.Probe 313 is connected to slide block 312 in the inner circumferential side of ring-shaped guide rail 311, and can stretch into and support in space that the inner peripheral surface of annulus 200 surrounds.
When the circularity for supporting annulus 200 is calibrated, exemplarily, the positive electricity subclass radionuclide long half-lift that probe 313 can adopting, as highly radioactive Ge-68 emission source probe.In one embodiment, mechanically deform and mistake extent can be estimated by the distortion of cylinder picture.When probe 313 detours one week, the image obtained should be standard cylinder.But the mechanically deform of system and the alignment error of detector, can cause anamorphose.Therefore, can mechanically deform be estimated by the distortion of cylinder picture and miss extent.The method not only can detect and support annulus 200 distortion diametrically, can also judge distortion in its axial direction.Certainly, probe 313 can also adopt other structures, such as be configured to can measuring probe 313 to the distance of inwall supporting annulus 200, judge whether to deform to whether the distance of the inwall of support annulus 200 equal within one week, to carry out detector probe 313 by detouring.
In addition, calibrating installation 310 can also be used for emitting substance (the such as γ photon) correction for attenuation in human body.Exemplarily, when the correction for attenuation of calibrating installation 310 for γ photon, the positive electricity subclass radionuclide long half-lift that probe 313 also can adopting, as highly radioactive Ge-68 emission source probe.First do and do not have the sky of patient to sweep (Blank Scan), obtain I0.Then the probe 313 of utilization and human body axis being parallel is around completing transmission scan (Transmission Scan) human body rotating some weeks, obtains human body along all attenuation results I1 meeting line.I1 is attenuation divided by I0, this attenuation is made divisor factor and just can carry out correction for attenuation to homolographic projection value.Carry out correction for attenuation by calibrating installation 310, can picture quality be ensured.
Preferably, launch imaging device 300 and also comprise screening arrangement (not shown).This screening arrangement can be such as plumbous matter dividing plate.Screening arrangement can be inserted between adjacent detecting unit as required.Screening arrangement can emitting substance beyond the data mask imaging region needed for image reconstruction, reduces trans-regional noise, improves the signal to noise ratio of image.
Adjacent support annulus 200 can couple together by detector assembling device 100 provided by the invention, to be formed in the axially extendible transmitting imaging device 300 supporting annulus 200.This kind of structure can also install easily when detector assembling device 100 is mounted to and supports annulus 200, dismantle detector 120, is therefore convenient to safeguard transmitting imaging device.In addition, the benefit that this kind of structure is brought also comprise detector means can be configured 100 and the corresponding annulus 200 that supports be made into standard component, user can be bought the detector means configuration 100 of some as required and support annulus 200, and can reduce the cost of the aspects such as manufacture, transport, storage for Producer.
The present invention is illustrated by above-described embodiment, but should be understood that, above-described embodiment just for the object of illustrating and illustrate, and is not intended to the present invention to be limited in described scope of embodiments.In addition it will be appreciated by persons skilled in the art that the present invention is not limited to above-described embodiment, more kinds of variants and modifications can also be made according to instruction of the present invention, within these variants and modifications all drop on the present invention's scope required for protection.Protection scope of the present invention defined by the appended claims and equivalent scope thereof.
Claims (18)
1. for launching a detector assembling device for imaging device, it is characterized in that, described detector assembling device comprises:
Main body, the first surface be oppositely arranged and second surface of described main body are respectively arranged with the first connecting portion and the second connecting portion, for described main body is connected to launch imaging device adjacent support annulus between, described main-body structure is make described first surface and described second surface be positioned at same plane with the side of adjacent described support annulus respectively when described detector assembling device is mounted to described support annulus; And
Detector, described detector comprises detecting unit, and described detector is connected to the bottom of described main body; Wherein said main body comprises plate and supporting plate, described first connecting portion and described second connecting portion are separately positioned on be oppositely arranged two sides of described plate, described supporting plate comprises first end and the second end, described detector is connected to described first end, and described second end is removably connected to described plate.
2. detector assembling device as claimed in claim 1, it is characterized in that, described plate is provided with the slot along downward-extension on described plate, described slot structure can insert in described slot for making described second end.
3. detector assembling device as claimed in claim 1, is characterized in that, described first connecting portion and described second connecting portion are configured to the projection extended along the direction vertical with described plate in described two sides be oppositely arranged of described plate respectively.
4. detector assembling device as claimed in claim 1, it is characterized in that, described detector has the size of convergent in the cross section being parallel to described first surface and described second surface along the direction away from described main body.
5. detector assembling device as claimed in claim 1, it is characterized in that, described detector comprises multiple described detecting unit, and multiple described detecting unit arranges along the direction vertical with described second surface with described first surface, and adjacent described detecting unit contacts with each other.
6. detector assembling device as claimed in claim 5, it is characterized in that, at least one in multiple described detecting unit is between described first surface and described second surface.
7. detector assembling device as claimed in claim 6, it is characterized in that, the both sides of described detector protrude from described first surface and described second surface respectively, or the side of described detector protrudes from described first surface and opposite side flushes with described second surface.
8. detector assembling device as claimed in claim 7, is characterized in that, the size sum that described detector protrudes from described first surface and described second surface equals the width of described support annulus.
9. a transmitting imaging device, is characterized in that, described transmitting imaging device comprises:
At least two support annulus, and described support annulus is arranged along the axial concentric parallel of described support annulus, and two sides of each described support annulus are provided with junction surface; And
Detector assembling device according to any one of claim 1-8, described detector assembling device is between adjacent described support annulus, described first connecting portion on described detector assembling device and described second connecting portion engage with the junction surface on adjacent described support annulus respectively, to connect adjacent described support annulus by described detector assembling device, wherein said detector is positioned at the inner circumferential side of described support annulus.
10. launch imaging device as claimed in claim 9, it is characterized in that, each side of described support annulus is provided with multiple described junction surface, multiple described junction surface arranges equably along the circumference of described support annulus, and the distance between described junction surface is configured to the inner circumferential side close-packed arrays making described detector at described support annulus.
11. launch imaging device as claimed in claim 9, it is characterized in that, described first connecting portion and the joint construction between described second connecting portion and described junction surface are socket connection.
12. launch imaging device as claimed in claim 9, it is characterized in that, within described detector assembling device is embedded in the outer surface of described support annulus, to form the radiating groove of the circumference along described multiple support annulus.
13. launch imaging device as claimed in claim 9, it is characterized in that, each described support annulus is provided with the corresponding through hole in position, and described through hole axially extends along the described of described support annulus.
14. launch imaging device as claimed in claim 9, it is characterized in that, described transmitting imaging device also comprises screening arrangement, and described screening arrangement can be inserted between adjacent described detecting unit.
15. launch imaging device as claimed in claim 9, it is characterized in that, described transmitting imaging device also comprises calibrating installation, and it comprises:
Ring-shaped guide rail, described ring-shaped guide rail is removably disposed in and is positioned on axial outermost described support annulus;
Slide block, described slide block is arranged on described ring-shaped guide rail, and described slide block can slide along the circumference of described ring-shaped guide rail; And
Probe, described probe is connected to described slide block in the inner circumferential side of described ring-shaped guide rail, and in the space that surrounds of the inner peripheral surface that can stretch into described support annulus.
16. 1 kinds for launching the support annulus of imaging device, it is characterized in that, two sides of described support annulus are provided with junction surface, wherein said interface architecture for can with the first connecting portion as described in the detector assembling device according to any one of claim 1-8 and as described in the second connecting portion engage.
17. support annulus as claimed in claim 16, it is characterized in that, each side of described support annulus is provided with multiple described junction surface, multiple described junction surface arranges equably along the circumference of described support annulus, and the distance between described junction surface is configured to make described detector at the inner circumferential side close-packed arrays of described support annulus when described detector assembling device is mounted to described support annulus.
18. support annulus as claimed in claim 16, it is characterized in that, described junction surface is the groove being arranged on the side of described support annulus along the radial direction of described support annulus.
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| CN103549968B (en) * | 2013-10-15 | 2015-10-28 | 沈阳东软医疗系统有限公司 | A kind of pet detector and detector rings thereof |
| CN104473657B (en) * | 2014-11-11 | 2017-03-01 | 东莞南方医大松山湖科技园有限公司 | Support unit, support equipment and the transmitting imaging device using this support equipment |
| CN104367332B (en) * | 2014-12-09 | 2017-02-22 | 武汉数字派特科技有限公司 | Detector ring of PET (positron emission tomography) detector |
| US10267930B2 (en) | 2016-09-30 | 2019-04-23 | Shanghai United Imaging Healthcare Co., Ltd. | Systems for PET imaging |
| CN106580357A (en) * | 2016-11-15 | 2017-04-26 | 上海联影医疗科技有限公司 | Detector rack |
| CN106691489A (en) * | 2017-02-10 | 2017-05-24 | 上海联影医疗科技有限公司 | Detector frame |
| US10534097B2 (en) | 2016-10-14 | 2020-01-14 | Shanghai United Imaging Healthcare Co., Ltd. | Detector structure in a PET system |
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