CN103479372A - Detector assembly device, supporting ring and emission tomography equipment - Google Patents
Detector assembly device, supporting ring and emission tomography equipment Download PDFInfo
- Publication number
- CN103479372A CN103479372A CN201310362169.7A CN201310362169A CN103479372A CN 103479372 A CN103479372 A CN 103479372A CN 201310362169 A CN201310362169 A CN 201310362169A CN 103479372 A CN103479372 A CN 103479372A
- Authority
- CN
- China
- Prior art keywords
- detector
- support annulus
- annulus
- assembling device
- imaging device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a detector assembly device, a supporting ring and emission tomography equipment. The detector assembly device comprises a main body and a detector. A first connecting part and a second connecting part which are respectively arranged on a first surface and a second surface which are oppositely arranged on the main body are used for connecting the main body between the adjacent supporting rings of the emission tomography equipment. The structure of the main body is as follows: when the detector assembly device is installed to the supporting rings, the first surface and the second surface are respectively positioned on the same plane along with the side faces of the adjacent supporting rings. The detector comprises a detection unit connected to the lower part of the main body. The adjacent supporting rings can be connected by the detector assembly device, so that the extended emission tomography equipment in the axial direction of the supporting rings is formed, and the assembly and disassembly of the detector are convenient, and thus the emission tomography equipment can be conveniently maintained. In addition, the detector device is configured and the corresponding supporting rings are manufactured into standard parts, and the cost is reduced.
Description
Technical field
The present invention relates to launch imaging system, particularly, relate to a kind of for the detector assembling device of launching imaging device, for the support annulus of launching imaging device and there is this detector assembling device and support the emission imaging device of annulus.
Background technology
The emission imaging device that comprises the positron emission imaging device has been used to medical diagnosis.Take the positron emission imaging device as example, the die out phenomenon of effect of its positron that utilizes positron isotope decay to produce and the interior negatron of human body, lead in human body and inject with the isotope-labeled compound of positron, adopt the method for complex probe, utilize detector to survey the γ photon that the effect that dies out produces, obtain isotopic distributed intelligence in human body, by computer, rebuild combinatorial operation, thereby obtain the three-dimensional tomographic image that human body internal labeling compound distributes.
As can be seen here, in order to improve the sensitivity of detection, this emission imaging device should make detector survey all emitting substances (for example γ photon) as far as possible.The detector of emission imaging device generally is arranged on and supports on annulus, and the quantity that supports annulus has determined the axial visual field of emission imaging device.Support annulus more, the axial visual field of emission imaging device is larger, and the detection signal that single pass obtains is more, and the sensitivity of testing result is higher.Existing emission imaging device be generally axially only 20cm, this can affect the sensitivity of testing result.
Therefore, be necessary to propose a kind of detector assembling device, support annulus and emission imaging device, to solve problems of the prior art.
Summary of the invention
According to an aspect of the present invention, provide a kind of for launching the detector assembling device of imaging device.Described detector assembling device comprises: main body, be respectively arranged with the first connecting portion and the second connecting portion on the first surface be oppositely arranged of described main body and second surface, for described main body being connected between the adjacent support annulus of emission imaging device, described main-body structure for making 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, described detector is connected to the bottom of described main body.
Preferably, described main body comprises plate and supporting plate, described the first connecting portion and described the second connecting portion are arranged on respectively on two sides that are oppositely arranged of described plate, described supporting plate comprises first end and the second end, described detector is connected to described first end, and described the second end removably is connected to described plate.
Further preferably, on described plate, be provided with along the slot of downward-extension on described plate, described slot structure is for making described the second end can insert in described slot.
Preferably, described the first connecting portion is configured to respectively the projection of extending along the direction vertical with described plate in described two sides that are oppositely arranged of described plate with described the second connecting portion.
Preferably, described detector has the size of convergent in the cross section that is parallel to described first surface and described second surface along the direction away from described main body.
Preferably, described detector comprises a plurality of described detecting units, and a plurality of described detecting units are arranged along the direction vertical with described second surface with described first surface, and adjacent described detecting unit is in contact with one another.
Further preferably, at least one in a plurality of described detecting unit is between described first surface and described second surface.
Further preferably, the both sides of described detector protrude from respectively described first surface and described second surface, or a 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 emission imaging device.Described emission imaging device comprises: at least two are supported annulus, and described support annulus axially be arranged in parallel with one heart along described support annulus, and two sides of each described support annulus are provided with junction surface; And above-mentioned any detector assembling device, described detector assembling device is between adjacent described support annulus, described the first connecting portion on described detector assembling device and described the 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 a plurality of described junction surfaces, circumferentially arrange equably along described support annulus at a plurality of described junction surfaces, and the distance between described junction surface is configured to make described detector at the inner circumferential side of described support annulus close-packed arrays.
Preferably, the joint construction between described the first connecting portion and described the second connecting portion and described junction surface is socket connection.
Preferably, described detector assembling device is embedded in the outer surface of described support annulus, to form the circumferential radiating groove along described a plurality of support annulus.
Preferably, on each described support annulus, be provided with the corresponding through hole in position, described through hole extends axially along the described of described support annulus.
Preferably, described emission imaging device also comprises screening arrangement, and described screening arrangement can be inserted between adjacent described detecting unit.
Preferably, described emission 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 be along the circumferential slip 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 can stretch in the space that the interior perimeter surface of described support annulus surrounds.
According to another aspect of the invention, also provide a kind of for launching the support annulus of imaging device.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 above-mentioned any detector assembling device and as described in the second connecting portion engage.
Preferably, each side of described support annulus is provided with a plurality of described junction surfaces, circumferentially arrange equably along described support annulus at a plurality of described junction surfaces, and the distance between described junction surface is configured to make described detector at the inner circumferential side of described support annulus close-packed arrays when described detector assembling device is mounted to described support annulus.
Preferably, described junction surface is the groove of the side that radially is arranged on described support annulus along described support annulus.
According to detector assembling device provided by the invention, adjacent support annulus can be coupled together, to be formed on the axially upper extendible emission imaging device that supports annulus.This kind of structure can also install easily, dismantle detector when the detector assembling device is mounted to the support annulus, therefore is convenient to the emission imaging device is safeguarded.In addition, the benefit that this kind of structure brought also comprises that can and support accordingly annulus by the detector means configuration is made into standard component, user can be bought as required the detector means configuration of some and support annulus, and can reduce for Producer the cost of the aspects such as manufacture, transportation, storage.
Introduced the concept of a series of reduced forms in summary of the invention, this will further describe in specific embodiment part.Content part of the present invention does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain of attempting to determine technical scheme required for protection.
Below in conjunction with accompanying drawing, describe advantages and features of the invention in detail.
The accompanying drawing explanation
Following accompanying drawing of the present invention is used for understanding the present invention in this as a part of 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 according to the support annulus of an embodiment of invention
Fig. 3 is that the detector assembling device is connected to two schematic diagrams between the support annulus be arranged side by side;
Fig. 4 is the partial schematic diagram that the detector assembling device is mounted to the support annulus of emission imaging system;
Fig. 5 is for launching according to an embodiment of the invention the schematic diagram of imaging device;
Fig. 6 is for launching in accordance with another embodiment of the present invention the schematic diagram of imaging device; And
The schematic diagram of the emission imaging device that Fig. 7 is another embodiment according to the present invention.
The specific embodiment
In the following description, a large amount of concrete details have been provided in order to more thorough understanding of the invention is provided.Yet, it will be apparent to one skilled in the art that the present invention can be implemented without one or more these details.In other example, for fear of obscuring with the present invention, for technical characterictics more well known in the art, be not described.
In order thoroughly to understand the present invention, detailed structure will be proposed in following description.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, yet, except these are described in detail, the present invention can also have other embodiments.
According to an aspect of the present invention, provide a kind of detector assembling device (hereinafter to be referred as " detector assembling device ") for launching imaging device.Embodiment below in conjunction with accompanying drawing to detector assembling device provided by the invention is described in detail.
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, the state of detecting unit 121 in not installing fully.
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, between the adjacent support annulus that main body 110 is connected to the emission imaging device.Fig. 2 is the schematic diagram according to the support annulus 200 of an embodiment of invention.As shown in Figure 2, the side of support annulus 200 is provided with junction surface 210.This junction surface 210 coordinates for the first connecting portion 111 with detector assembling device 100 and the second connecting portion 112.Fig. 3 shows detector assembling device 100 and is connected to two schematic diagrams between the support annulus be arranged side by side.For the ease of clearly describing detector assembling device 100 and adjacent two annexations that support between annulus, support annulus by two and be called the first support annulus 200A and second and support annulus 200B in Fig. 3.With reference to Fig. 1 and Fig. 3, the first connecting portion 111 can be connected with the junction surface of the first support annulus 200A side, and the second connecting portion 112 can be connected with the junction surface of the second support annulus 200B side.By detector assembling device 100, adjacent support annulus can be coupled together like this, to be formed on the axially upper extendible emission imaging device that supports annulus.
Detector assembling device 100 can more clearly be observed by Fig. 4 with the above-mentioned annexation that supports annulus.Fig. 4 is the partial schematic diagram that detector assembling device 100 is mounted to the support annulus of emission imaging system, particularly, and the schematic perspective view that Fig. 4 watches for the radial outside from supporting annulus.Different from Fig. 3, in order to know purpose, exemplarily show the situation that a detector assembling device 100 only is installed in Fig. 4.But in practice, adjacent two are supported on annulus 200A and 200B a plurality of detector assembling devices 100 can be installed.As shown in Figure 4, the first junction surface 210A that supports annulus 200A coordinates with the first connecting portion 111 on first surface, and the second joint portion 210B that supports annulus 200B coordinates with the second connecting portion 112 on second surface.Although connecting portion 111,112 and junction surface 210A, 210B shown in 4 are respectively projection and the groove that can mutually combine, the present invention is not limited to this.
In addition, it should be noted that the surface that said " first surface " and " second surface " not can be seen in some cases here.When detector assembling device 100 is mounted to support annulus 200, first surface and second surface are respectively the surface that the side with adjacent support annulus 200 main body 110 is positioned at same plane.For example, in Fig. 4, first surface dissects for the side relative with the second support annulus 200B from dotted line A-A ' along the first support annulus 200A the surface that main body 110 obtains, and second surface is for dissecing along the second side relative with the first support annulus 200A that holds round ring 200B the surface that main body 110 obtains from dotted line B-B '.Zone between first surface and second surface is corresponding to the zone between adjacent support annulus 200.
Return referring to Fig. 1, detector 120 is connected to the bottom of main body 110, for example, for detection of the emitting substance produced in emission imaging testing process, the γ photon in the positron emission imaging system.It should be noted that, here said " bottom " is comparatively speaking, detector 120 is arranged on the end of main body 110 along the direction of arrow A in Fig. 1, to guarantee that detector 120 is positioned at the inner circumferential side of support annulus when detector assembling device 100 is mounted between the adjacent support annulus 200A of imaging emission system and 200B as illustrated in fig. 3.Foregoing, detector 120 comprises detecting unit.Detecting unit can be one, also can be for a plurality of.As example, according to one embodiment of present invention, detector comprises two detecting units 121 and 122.In use, when certain detector or detecting unit break down, only need to remove individually this detector or detecting unit, and whole detector assembling device 100 need not be removed, even do not need main body 110 is disassembled from supporting annulus.
The member that main body 110 can be integrated can be also the member of split.Preferably, main body 110 can comprise plate 113 and supporting plate 114.Referring to Fig. 1, the first connecting portion 111 and the second connecting portion 112 are separately positioned on two sides that are oppositely arranged of plate 113.It should be noted that said " two sides " can lay respectively on " first surface " and " second surface " above here.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 removably is connected to plate 113.During installation or removal detector assembling device 100, plate 113 and supporting plate 114 and the detector 120 be connected on supporting plate 114 can be installed separately or dismantle.Can be as illustrated in fig. 1, main body 110 comprises the supporting plate corresponding with the quantity of detecting unit 121 and 122 114, each supporting plate 114 only is connected to plate 113 by a detecting unit 121 or 122.When detector assembling device 100 comprises a plurality of detecting unit, the supporting plate 114 of the quantity that is less than detecting unit also can be provided, each supporting plate 114 can be connected to plate 113 by a plurality of detecting units.Certainly each detecting unit, also can provide the supporting plate 114 more than the quantity of detecting unit, so that can be connected to plate 113 by a plurality of supporting plates 114.
The mode that the second end 114B of supporting plate 114 is connected to plate 113 can have multiple, such as bonding, riveted joint and grafting etc.Preferably, on plate 113, be provided with along the plate slot 113A that Shang Xia 113, (for arrow A) extends.Wherein slot 113A is constructed so that the second end 114B of supporting plate 114 can insert in slot 113A, thereby supporting plate 114 is connected to plate 113 by the mode of pegging graft.Certainly, in this case, can also additionally with rivet and/or screw etc., strengthen the connection between supporting plate 114 and plate 113.Supporting plate 114 is connected to plate 113 by the mode of pegging graft, and when detector assembling device 100 is mounted on the support annulus, edge is supported the radial direction installation or removal supporting plate 114 of annulus and is connected to the detector 120 on supporting plate 114 easily.
Preferably, the first connecting portion 111 and the second connecting portion 112 are configured to respectively the projection (as shown in Figure 4) of extending along the direction vertical with plate 113 in two sides that are oppositely arranged of plate 113, and in the side of plate 113, the front and back to plate 113 protrudes.Wherein front is surface facing up in Fig. 1, the back side with this vis-a-vis.This projection can match with junction surface 210A and 210B on support annulus 200A mentioned above and 200B, detector assembling device 100 is connected to and supports annulus 200A and 200B is upper, particularly support annulus 200A and 200B axially on connection more stable.
Preferably, detector 120 has the size of convergent in the cross section that is parallel to above-mentioned first surface and second surface along the direction away from main body 110.Referring to Fig. 3, detector 120 is wedge shape.When detector assembling device 100 is mounted to while supporting annulus 200A and 200B, in the side (being the side surface shown in Fig. 3) with supporting annulus 200A and 200B, on parallel face, along radially inner direction, there is the size of convergent.When a plurality of detector assembling devices 100 are mounted to support annulus 200, because the interior volume that supports annulus 200 encirclements is cylindrical, therefore this structure of detector 120 can be so that can close-packed arrays between adjacent detector, receive more detection signal, make testing result more accurate.
As described above, detector 120 can comprise a detecting unit, also can comprise a plurality of detecting units.Preferably, detector 120 comprises a plurality of detecting units.As example, as shown in fig. 1, comprise two detecting units 121,122.In unshowned other embodiment of the present invention, detecting unit can also be even more for three, four.In practice, can only dismantle as required or change one of them detecting unit, and not by detector 120 detector assembling device 100 integral demountings even.A plurality of detecting units 121,122 are arranged along the direction vertical with second surface with first surface, and adjacent detecting unit 121,122 is in contact with one another, so that a plurality of detecting unit 121,122 close-packed arrays.Support annulus in the situation that detector assembling device 100 is mounted to, the direction vertical with second surface with first surface is and supports the axial of annulus.
When supporting between annulus 200 installation and measuring device assembling device 100 for two, while within detector 120 is being parallel to the cross section of above-mentioned first surface and second surface, along the direction away from main body 110, thering is the size of convergent, because the installing space of last detector assembling device 100 is limited, therefore can not install from supporting annulus 200 inner circumferential sides, and while installing from the outer circumferential side that supports annulus 200, detector 120 can be subject to again supporting the stopping of wall of annulus 200, referring to Fig. 4.Therefore, preferably, at least one in a plurality of detecting units 121,122 is between first surface and second surface.As mentioned above, because first surface and second surface are positioned at same plane with adjacent support annulus 200A and the side of 200B respectively, therefore this kind of set-up mode of a plurality of detecting units 121,122 can for example, so that at least one in a plurality of detecting unit 121,122 (, the detecting unit in Fig. 4 121) be complete between two adjacent support annulus 200A and 200B.Therefore when the outer circumferential side from supporting annulus 200A and 200B, during along a plurality of detecting unit of the radial direction installation or removal of support annulus 200 121,122, have at least one (for example, the detecting unit in Fig. 4 121) not supported stopping of annulus 200.For example in the embodiment show in figure 4, detecting unit 121 is fully between two adjacent support annulus 200A and 200B, and the part of detecting unit 122 is positioned at the inner circumferential side the supported annulus 200A that support annulus 200A and stops.In the situation that the preferred embodiment provided by the invention, if wish is dismantled already installed detecting unit 122, can detecting unit 121 be disassembled at the outer circumferential side from supporting annulus 200A and 200B, and then main body 110 is disassembled, can detecting unit 122.If wish is installed last the detector assembling device 100 in circumference, can carry out the anti-process of above-mentioned unloading process.Particularly, detecting unit 122 is placed on to its preposition in advance, then from outer circumferential side, main body 100 is installed, finally again from the outer circumferential side detecting unit 121 of packing into.
At least one in a plurality of detecting units 121,122 of detector 120 is in the situation that between first surface and second surface, further preferably, the both sides of detector 120 can protrude from respectively first surface and second surface, or a 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 that support between annulus 200 fully, but also can cover at least a portion that supports annulus 200 inwalls, the zone that makes to receive detection signal is larger, and then improves the sensitivity of emission imaging device.
Preferably, the size sum that detector 120 protrudes from first surface and second surface equals to support the width of annulus 200.In this case, when a plurality of detector assembling devices 100 are arranged between a plurality of support annulus 200, the projection of the detector 120 of two adjacent detector assembling devices 100 just in time can closely be booked and support annulus 200 inwall vertically, make the arrangement between detector 120 tight, thereby can not miss detection signal, 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 that protrudes from second surface.
It is a kind of for launching the support annulus 200 of imaging device that the present invention also provides.As shown in Figure 2, two sides of support annulus 200 are provided with junction surface 210.Wherein this junction surface 210 is configured to engage with the first connecting portion 111 and second connecting portion 112 of above-mentioned detector assembling device 100.The first connecting portion 111 of detector assembling device 100 is connected to adjacent two and supports between annulus 200A and 200B, as shown in Figure 3.Like this, by the repeated arrangement that supports annulus and detector assembling device, can be connected a plurality of support annulus, obtain the axial prolongable emission imaging device 300 shown in Fig. 5.The further structure of emission imaging device 300 will be described in more detail below.
Preferably, return referring to Fig. 2, each side of supporting annulus 300 is provided with a plurality of junction surfaces 210, a plurality of junction surfaces 210 are along supporting circumferentially arranging equably of annulus 300, distance between junction surface 210 is configured to make detector 120 at the inner circumferential side close-packed arrays that supports annulus, as shown in Figure 3 when detector assembling device 100 is mounted to support annulus 200.A plurality of junction surfaces 210 can connect a plurality of detector assembling devices 100, and this kind of make between a plurality of junction surfaces 210 can be so that close-packed arrays between a plurality of detectors 120 on a plurality of detector assembling device 100, thereby can acquisition emitting substance as much as possible, improve sensitivity.
As described above, the first connecting portion 111 can be configured to the projection of extending along the direction vertical with plate 113 in two sides that are oppositely arranged of plate 113 with the second connecting portion 112.Correspondingly, as shown in Figure 2, junction surface 210 also can be set to along the groove that radially is arranged on the side of supporting annulus 200 that supports 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 emission imaging device 300.This emission imaging device 300 includes but not limited to comprise the positron emission imaging device, for example, within as long as the emission imaging device that need to utilize detector to receive the emitting substance that detected object (human body) produces is included in protection scope of the present invention.As shown in Figure 5, emission imaging device 300 comprises at least two support annulus 200 as described above and detector assembling device 100 as described above.Wherein support annulus 200 along supporting axially be arrangeding in parallel with one heart of annulus 200, each two side supporting annulus 200 is 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 referring to Fig. 1 and Fig. 2) with the junction surface 210 on adjacent support annulus 200, engage respectively, by detector assembling device 200, to connect adjacent support annulus 200.Wherein the detector 120 in detector assembling device 100 is positioned at the inner circumferential side of supporting annulus 200.When utilizing this emission imaging device 300 to be monitored, detected object is positioned at and supports the formed columniform space of annulus, and like this, the detector 120 that is arranged on inner circumferential side can be collected 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.Axially can carry out as required extended length according to emission imaging system 300 of the present invention, the support annulus 200 and the detector assembling device 100 that connect varying number, the axial visual field of emission imaging device 300 increases, the quantity of detector also increases, and has improved the sensitivity of emission imaging device 300.This structure can facilitate the installation and removal of detector assembling device 100, and one or several detector or detecting unit break down while needing to change especially therein, can only dismantle the detector or the detecting unit that break down, therefore is convenient to safeguard.
The first connecting portion of detector assembling device 100 and the second connecting portion with support annulus 200 on junction surface 210 between engage various ways can be arranged, such as riveting, be spirally connected etc.Preferably, the joint construction of the first connecting portion and the second connecting portion and joint portion 210 is socket connection.For example, as above, the first connecting portion and the second connecting portion can be configured to projection, and junction surface 210 can be configured to along the groove that can match with above-mentioned projection radially extended that supports annulus 200.Socket connection can facilitate the installation and removal of detector assembling device 100.
Therefore, the invention provides a kind of preferred embodiment, detector assembling device 100 is embedded in the outer surface that supports annulus 200, and detector assembling device 100 is less than with respect to the ultimate range of the axis that supports annulus 200 external diameter that supports annulus 200.Like this, two at arbitrary neighborhood support between annulus 200 the circumferential radiating groove (not shown) that can form edge support annulus 200.When 300 work of emission imaging device, can utilize the auxiliary facilities such as fan to carry cold airs along the arrow B shown in Fig. 6 to emission imaging device 300, under the effect of cold air, hot-air can upwards flow along the circumferential radiating groove that supports annulus 200, and in Fig. 6, the direction shown in arrow C flows.Hot-air converges in the top of supporting annulus 200, drives hot-air by other auxiliary facilities like this and flows and leave the emission imaging device along the direction shown in arrow D.The preferred embodiment utilize hot-air naturally to make progress to flow away from being provided with along the radiating groove of the circumferential extension of supporting annulus 200, can improve radiating efficiency, and the rigidity that supports annulus 200 not exerted an influence.In addition, the above-mentioned description to auxiliary heat dissipation equipment and air-flow flow direction is only exemplary, and the present invention is not limited to this mode.
In addition, can also utilize the distributed heat galvanic couple to test respectively the temperature that supports annulus 200 and detector 120, realize the closed loop control of temperature.
When emission imaging device 300 has a plurality of support annulus 200, the center of circle of a plurality of support annulus 200 may not can in installation process be aimed at fully.Therefore, preferably, each supports on annulus 200 can be provided with the corresponding through hole (not shown) in position, and through hole is along supporting extending axially of annulus 200.Like this, for example, can carry out the concentric alignment of a plurality of support annulus 200 by additional other devices (, light beam).Particularly, can utilize light beam whether can judge that whether a plurality of support annulus 200 are concentric through the through hole of corresponding section, position.In addition, as this emission imaging device 300(positron emission imaging device PET for example) when for example, with other imaging device (ct apparatus CT) integrated, through hole can also be for the mechanical register between two cover imaging devices.This concentric alignment apparatus structure is simple.Each supports on annulus can arrange one or more through holes, but preferably, each supports on annulus and is provided with a plurality of through holes, to improve the concentricity of a plurality of support annulus 200.
When the circularity for supporting annulus 200 is calibrated, as example, the positive electricity subclass radionuclide long half-lift that probe 313 can adopting, as highly radioactive Ge-68 emission source probe.In one embodiment, the size of mechanically deform and error can be estimated by the distortion of cylinder picture.When probe 313 detours one week, the image obtained should be the standard cylinder.Yet the mechanically deform of system and the alignment error of detector, can cause anamorphose.Therefore, can estimate by the distortion of cylinder picture the size of mechanically deform and error.The method not only can detect and support annulus 200 distortion diametrically, can also judge the distortion on it is axial.Certainly, probe 313 can also adopt other structures, for example be configured to arrive the distance of the inwall that supports annulus 200 by measuring probe 313, in order within one week, come detector probe 313 whether to equate to judge whether to deform to the distance of the inwall that supports annulus 200 by detouring.
In addition, calibrating installation 310 can also for example, for emitting substance (γ photon) correction for attenuation at human body.As example, when calibrating installation 310, during for the correction for attenuation of γ photon, the positive electricity subclass radionuclide long half-lift that probe 313 also can adopting, as highly radioactive Ge-68 emission source probe.At first do the sky that there is no patient and sweep (Blank Scan), obtained I0.Then utilize the probe 313 parallel with people's body axis around completing transmission scan (Transmission Scan) some weeks of human body rotating, obtain human body along all attenuation results I1 that meet line.I1 is attenuation divided by I0, this attenuation is made to divisor factor and just can carry out correction for attenuation to the homolographic projection value.Carry out correction for attenuation by calibrating installation 310, can guarantee picture quality.
Preferably, emission imaging device 300 also comprises the screening arrangement (not shown).This screening arrangement can be for example plumbous matter dividing plate.Screening arrangement can be inserted between adjacent detecting unit as required.Screening arrangement can be required according to image reconstruction the data mask imaging region beyond emitting substance, reduce trans-regional noise, improve the signal to noise ratio of image.
The present invention is illustrated by above-described embodiment, but should be understood that, above-described embodiment is the purpose for giving an example and illustrating just, but not is intended to the present invention is limited in described scope of embodiments.It will be appreciated by persons skilled in the art that in addition the present invention is not limited to above-described embodiment, according to instruction of the present invention, can also make more kinds of variants and modifications, these variants and modifications all drop in the present invention's scope required for protection.Protection scope of the present invention is defined by the appended claims and equivalent scope thereof.
Claims (19)
1. one kind for launching the detector assembling device of imaging device, it is characterized in that, described detector assembling device comprises:
Main body, be respectively arranged with the first connecting portion and the second connecting portion on the first surface be oppositely arranged of described main body and second surface, for described main body being connected between the adjacent support annulus of emission imaging device, described main-body structure for making 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, described detector is connected to the bottom of described main body.
2. detector assembling device as claimed in claim 1, it is characterized in that, described main body comprises plate and supporting plate, described the first connecting portion and described the second connecting portion are arranged on respectively on two sides that are oppositely arranged of described plate, described supporting plate comprises first end and the second end, described detector is connected to described first end, and described the second end removably is connected to described plate.
3. detector assembling device as claimed in claim 2, is characterized in that, on described plate, is provided with along the slot of downward-extension on described plate, and described slot structure is for making described the second end can insert in described slot.
4. detector assembling device as claimed in claim 2, is characterized in that, described the first connecting portion is configured to respectively the projection of extending along the direction vertical with described plate in described two sides that are oppositely arranged of described plate with described the second connecting portion.
5. detector assembling device as claimed in claim 1, is characterized in that, described detector has the size of convergent in the cross section that is parallel to described first surface and described second surface along the direction away from described main body.
6. detector assembling device as claimed in claim 1, it is characterized in that, described detector comprises a plurality of described detecting units, and a plurality of described detecting units are arranged along the direction vertical with described second surface with described first surface, and adjacent described detecting unit is in contact with one another.
7. detector assembling device as claimed in claim 6, is characterized in that, at least one in a plurality of described detecting units is between described first surface and described second surface.
8. detector assembling device as claimed in claim 7, it is characterized in that, the both sides of described detector protrude from respectively described first surface and described second surface, or a side of described detector protrudes from described first surface and opposite side flushes with described second surface.
9. detector assembling device as claimed in claim 8, 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.
10. an emission imaging device, is characterized in that, described emission imaging device comprises:
At least two are supported annulus, and described support annulus axially be arranged in parallel with one heart along described support annulus, and two sides of each described support annulus are provided with junction surface; And
Detector assembling device as claimed in any one of claims 1-9 wherein, described detector assembling device is between adjacent described support annulus, described the first connecting portion on described detector assembling device and described the 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.
11. emission imaging device as claimed in claim 10, it is characterized in that, each side of described support annulus is provided with a plurality of described junction surfaces, circumferentially arrange equably along described support annulus at a plurality of described junction surfaces, and the distance between described junction surface is configured to make described detector at the inner circumferential side of described support annulus close-packed arrays.
12. emission imaging device as claimed in claim 10, is characterized in that, the joint construction between described the first connecting portion and described the second connecting portion and described junction surface is socket connection.
13. emission imaging device as claimed in claim 10, is characterized in that, described detector assembling device is embedded in the outer surface of described support annulus, to form the circumferential radiating groove along described a plurality of support annulus.
14. emission imaging device as claimed in claim 10, is characterized in that, on each described support annulus, is provided with the corresponding through hole in position, described through hole extends axially along the described of described support annulus.
15. emission imaging device as claimed in claim 10, is characterized in that, described emission imaging device also comprises screening arrangement, and described screening arrangement can be inserted between adjacent described detecting unit.
16. emission imaging device as claimed in claim 10, is characterized in that, described emission 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 be along the circumferential slip 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 can stretch in the space that the interior perimeter surface of described support annulus surrounds.
17. one kind for launching the support annulus of imaging device, it is characterized in that, two sides of described support annulus are provided with junction surface, and wherein said interface architecture is can be with described the first connecting portion and described second connecting portion of detector assembling device engage as claimed in any one of claims 1-9 wherein.
18. support annulus as claimed in claim 17, it is characterized in that, each side of described support annulus is provided with a plurality of described junction surfaces, circumferentially arrange equably along described support annulus at a plurality of described junction surfaces, and the distance between described junction surface is configured to make described detector at the inner circumferential side of described support annulus close-packed arrays when described detector assembling device is mounted to described support annulus.
19. support annulus as claimed in claim 17, is characterized in that, described junction surface is the groove of the side that radially is arranged on described support annulus along described support annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310362169.7A CN103479372B (en) | 2013-08-19 | 2013-08-19 | Detector assembling device, support annulus and transmitting imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310362169.7A CN103479372B (en) | 2013-08-19 | 2013-08-19 | Detector assembling device, support annulus and transmitting imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103479372A true CN103479372A (en) | 2014-01-01 |
| CN103479372B CN103479372B (en) | 2015-09-02 |
Family
ID=49820214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310362169.7A Active CN103479372B (en) | 2013-08-19 | 2013-08-19 | Detector assembling device, support annulus and transmitting imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103479372B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103549968A (en) * | 2013-10-15 | 2014-02-05 | 沈阳东软医疗系统有限公司 | PET (positron emission tomography) detector and detector ring thereof |
| CN104367332A (en) * | 2014-12-09 | 2015-02-25 | 武汉科影技术科技有限公司 | Detector ring of PET (positron emission tomography) detector |
| CN104473657A (en) * | 2014-11-11 | 2015-04-01 | 东莞南方医大松山湖科技园有限公司 | Supporting unit, supporting device and emission imaging device with supporting device |
| 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 |
| US10267930B2 (en) | 2016-09-30 | 2019-04-23 | Shanghai United Imaging Healthcare Co., Ltd. | Systems for PET imaging |
| US10534097B2 (en) | 2016-10-14 | 2020-01-14 | Shanghai United Imaging Healthcare Co., Ltd. | Detector structure in a PET system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5760402A (en) * | 1996-06-07 | 1998-06-02 | Adac Laboratories | Dual-head medicine imaging system with cantilevered detector heads |
| US20060175552A1 (en) * | 2005-02-04 | 2006-08-10 | Shinichi Kojima | Radiological inspection apparatus and radiological inspection method |
| CN101120876A (en) * | 2006-08-08 | 2008-02-13 | 西门子公司 | Detecting unit for mounting in cylinder type patient container cavity of magnetic resonance equipment |
| US20100128956A1 (en) * | 2007-04-17 | 2010-05-27 | National Institute Of Radiological Sciences | Pet scanner and image reconstruction method thereof |
| JP2010223956A (en) * | 2009-02-25 | 2010-10-07 | Action Research:Kk | Pet supporting apparatus |
| CN103376457A (en) * | 2012-04-30 | 2013-10-30 | 通用电气公司 | Positron emission tomogrpahy detector for dual-modality imaging |
-
2013
- 2013-08-19 CN CN201310362169.7A patent/CN103479372B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5760402A (en) * | 1996-06-07 | 1998-06-02 | Adac Laboratories | Dual-head medicine imaging system with cantilevered detector heads |
| US20060175552A1 (en) * | 2005-02-04 | 2006-08-10 | Shinichi Kojima | Radiological inspection apparatus and radiological inspection method |
| CN101120876A (en) * | 2006-08-08 | 2008-02-13 | 西门子公司 | Detecting unit for mounting in cylinder type patient container cavity of magnetic resonance equipment |
| US20100128956A1 (en) * | 2007-04-17 | 2010-05-27 | National Institute Of Radiological Sciences | Pet scanner and image reconstruction method thereof |
| JP2010223956A (en) * | 2009-02-25 | 2010-10-07 | Action Research:Kk | Pet supporting apparatus |
| CN103376457A (en) * | 2012-04-30 | 2013-10-30 | 通用电气公司 | Positron emission tomogrpahy detector for dual-modality imaging |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103549968A (en) * | 2013-10-15 | 2014-02-05 | 沈阳东软医疗系统有限公司 | PET (positron emission tomography) detector and detector ring thereof |
| US10188357B2 (en) | 2014-11-11 | 2019-01-29 | Dongguan Songshan Lake Southern Medical University Sci. & Tech. Park Co., Ltd. | Support unit, support device, and emission tomography device using support device |
| CN104473657A (en) * | 2014-11-11 | 2015-04-01 | 东莞南方医大松山湖科技园有限公司 | Supporting unit, supporting device and emission imaging device with supporting device |
| CN104367332A (en) * | 2014-12-09 | 2015-02-25 | 武汉科影技术科技有限公司 | 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 |
| US10768319B2 (en) | 2016-09-30 | 2020-09-08 | Shanghai United Imaging Healthcare Co., Ltd. | Systems for PET imaging |
| US11385363B2 (en) | 2016-09-30 | 2022-07-12 | Shanghai United Imaging Healthcare Co., Ltd. | Systems for PET imaging |
| US11874413B2 (en) | 2016-09-30 | 2024-01-16 | Shanghai United Imaging Healthcare Co., Ltd. | Systems for pet imaging |
| US10534097B2 (en) | 2016-10-14 | 2020-01-14 | Shanghai United Imaging Healthcare Co., Ltd. | Detector structure in a PET system |
| US11307316B2 (en) | 2016-10-14 | 2022-04-19 | Shanghai United Imaging Healthcare Co., Ltd. | Detector structure in a PET system |
| US11592585B2 (en) | 2016-10-14 | 2023-02-28 | Shanghai United Imaging Healthcare Co., Ltd. | Detector structure in a PET system |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103479372B (en) | 2015-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103479372A (en) | Detector assembly device, supporting ring and emission tomography equipment | |
| JP4365762B2 (en) | Nuclear medicine diagnostic apparatus and method for cooling nuclear medicine diagnostic apparatus | |
| CN105473072B (en) | PET system with crystal or detector cell spacing | |
| CN103370636B (en) | Medical diagnostic imaging apparatus and control method | |
| JP7179958B2 (en) | Compton camera with segmented detection module | |
| US20140312238A1 (en) | Flexible connectors for pet detectors | |
| JP2008206977A (en) | Overlay display device for magnetic resonance tomographic image and positron emission tomographic image | |
| CN104367332B (en) | Detector ring of PET (positron emission tomography) detector | |
| JP2006234412A (en) | Nuclear medicine diagnosis system and positron emission tomography apparatus | |
| CN103348262B (en) | Pet scanner | |
| Backhaus et al. | The upgraded pixel detector of the ATLAS experiment for run 2 at the large Hadron collider | |
| WO2014193066A1 (en) | Positron emission tomography detector and positron emission tomography system using same | |
| JP2013029495A (en) | Methods and apparatus for collimation of detector | |
| CN102540239B (en) | Gamma radial inspection system and positron emission tomography shooting system | |
| Goertzen et al. | First results from the high-resolution mouseSPECT annular scintillation camera | |
| CN103975252B (en) | The configuration of detector module determines method, gamma-ray detector and PET device | |
| CN106175807B (en) | Crystal positions bearing calibration for imaging system | |
| JP7293334B2 (en) | Nearly 2π Compton camera for medical imaging | |
| CN107007296B (en) | PET (positron emission tomography) stand and PET imaging equipment | |
| JP2007101234A (en) | Nuclear medicine diagnostic equipment, and method of cooling the same | |
| JP7208355B2 (en) | Adaptive Compton camera for medical imaging | |
| CN106377277B (en) | The crystal method for correcting position of medical imaging devices | |
| KR20150140243A (en) | MRI-PET cephalic molecular imaging coil and MRI-PET cephalic molecular imaging system | |
| Majewski | Perspectives of brain imaging with PET systems | |
| JP5046143B2 (en) | PET apparatus and detector arrangement determination method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Han Inventor after: Xu Jianfeng Inventor after: Li Shiqi Inventor before: Shi Han Inventor before: Xu Jianfeng |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171016 Address after: 518063 Changhong technology building, No. 18 South twelve Road, Nanshan District science and technology, Guangdong, Shenzhen 903 Patentee after: Sino science and Technology (Shenzhen) Co., Ltd. Address before: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 1037 Yu park two 4-3-302 Patentee before: Xu Jianfeng |