CN105342632B - A kind of PET system detector rings aperture adjusting device - Google Patents
A kind of PET system detector rings aperture adjusting device Download PDFInfo
- Publication number
- CN105342632B CN105342632B CN201510616004.7A CN201510616004A CN105342632B CN 105342632 B CN105342632 B CN 105342632B CN 201510616004 A CN201510616004 A CN 201510616004A CN 105342632 B CN105342632 B CN 105342632B
- Authority
- CN
- China
- Prior art keywords
- movable part
- hole
- detector
- disk
- chute
- 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.)
- Active
Links
- 238000009826 distribution Methods 0.000 claims abstract description 5
- 210000003734 kidney Anatomy 0.000 claims description 7
- 238000002059 diagnostic imaging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 238000002600 positron emission tomography Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/037—Emission tomography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine (AREA)
Abstract
A kind of PET system detector rings aperture adjusting device, solve the problems, such as that existing same device is complicated, cost is high.The present invention includes fixed disk and rotating disk, has the chute of N number of radially spoke distribution on fixed disk around center hole, and rotary disk surface has flat thread groove, and it forms spiral of Archimedes in rotary disk surface；Rotating disk is suspended on fixed disk bottom surface by support wheel, and movable part is respectively arranged with each chute of fixed disk, and under flat thread groove turning effort, each movable part can move radially along chute；Each detent surface of fixed disk is mounted on connecting plate, and it is connected with corresponding movable part；During work, detector is mounted on each connecting plate, each detector collectively forms detector rings.The present invention, with regard to a circle detector can be driven to move radially, so as to change the aperture of detector rings, is compared with existing same device using the rotation of a motor driven rotating disk, enormously simplify structure, saved cost.
Description
Technical field
The invention belongs to medical imaging device building block, and in particular to a kind of PET system detector rings aperture adjustment dress
Put, the size in positron emission tomography detector rings aperture can be changed, with the different size of position of body fitting, so that
Improve the sensitivity of equipment.
Background technology
PET system (PET) is a kind of special medical imaging device, can be according to human body or dynamic
The image that detected part reflects its physiological function is constructed in the specific distribution of thing in vivo radioactive tracer.Existing PET systems
System includes the mechanical parts such as detector rings, data collecting system, image reconstruction software and sick bed.
The detector rings of existing PET system are by multiple detector rings around forming ring device, the circular ring of ring device
Pore size immobilizes.For the medical PET system of whole body, in order to adapt to the detection of whole body, detector rings
Annular aperture must be sufficiently large；When detecting body smaller part position with it, such as head, it is necessary to reduce its aperture, to improve system
Sensitivity.
Therefore, it is necessary to a kind of device that can change detector rings pore size, to adapt to different size of position.It is existing
Mode is to load onto motor, screw mandrel, guide track system for each detector, to control position of each detector away from the center of circle to change
The size in detector rings aperture.But this method needs substantial amounts of motor, screw mandrel, guide rail.One medical PET system of whole body can
It can be made up of individual detectors up to a hundred, it is very high to solve problem cost in this way.
The content of the invention
The present invention provides a kind of PET system detector rings aperture adjusting device, can realize that detector moves radially, and solves
The problem of existing same device is complicated, cost is high, for changing the size in detector rings aperture.
A kind of PET system detector rings aperture adjusting device provided by the present invention, including fixed disk and rotating disk, it is special
Sign is：
The fixed disk is the rectangular slab with center hole, thereon around the center hole have it is N number of radially
The chute of spoke distribution, its section is convex shape, and the extended line of each chute axis intersects at the center of circle of the center hole, 6
≤N≤100；
The rotating disk is the disk with central through hole, the center of circle of disk and the center of circle of the center hole of the fixed disk
Overlap, the aperture of central through hole and the center hole are equal, and rotary disk surface has flat thread groove, the flat thread groove
Spiral of Archimedes is formed in rotary disk surface；The rotating disk is suspended on institute by the support wheel being distributed along its even circumferential
Fixed disk bottom surface is stated, one with flat thread groove upwardly, can rotate in the presence of external force around its center of circle；
The flat thread groove of movable part, the movable part bottom surface and rotating disk is respectively arranged with each chute of the fixed disk
Match somebody with somebody, under flat thread groove turning effort, each movable part can move radially along chute；
Each detent surface of the fixed disk is mounted on connecting plate, and it connects with corresponding movable part and can adjusted
Radially with respect to the position of the latter；
During work, detector is mounted on each connecting plate, each detector collectively forms detector rings.
Described PET system detector rings aperture adjusting device, it is characterised in that：
The movable part cross section is convex shape, is matched with the shape of cross section of the chute, and movable part bottom surface has two
The raised ridge in road, it can be engaged with the flat thread groove of rotating disk；Movable part top surface has kidney slot and tapped blind hole.
Described PET system detector rings aperture adjusting device, it is characterised in that：
The connecting plate bottom surface has locating convex block, for being slidably matched along the kidney slot；There is connection on connecting plate
Hole, connecting hole bottom both sides are respectively provided with pin hole and screw respectively；The connecting hole is mounting hole, for passing through it by screw
Coordinate with the screwed hole of the movable part, in the position radially with respect to movable part but also connect both so as to not only can adjust connecting plate
Connect；The pin hole is used for by pin to probe position, and the screw is used to be connected with detector by screw.
During present invention work, because each detector for forming detector rings need to form circle, and movable part is in installation process
In have to the flat thread groove of rotating disk engage, movable part is when filling a circle on fixed disk, due to the knot of flat thread groove
Structure limits, and often one angular mobility part of deflection has dislocation radially, and all movable parts do not form circle after installation
Shape, so being connected by the connecting hole of screw through connecting plate with the movable part, by the locating convex block and movable part of connecting plate
Kidney slot coordinate, can ensure that connecting plate diametrically moves relative to movable part, regulation connecting plate relative to movable part
Radial position, ensure that all detector compositions are circular；
When rotating disc spins, the flat thread groove of the raised ridge of movable part bottom surface twice and rotating disk coordinates,
Under the turning effort of flat thread groove, movable part can be moved along the chute of fixed disk, and one is connected to by connecting plate and movable part
The detector risen also follows movable part to move radially together, so as to change the size in detector rings aperture.When flat thread
Helical pitch can control the distance that movable part moves when determining by controlling the number of turns of rotation disc spins, so as to accurately control annular distance
The size in footpath.
The present invention uses the rotation of a motor driven rotating disk with regard to a circle detector can be driven to move radially, so as to change
Become the size in detector rings aperture；With existing same device by way of motor, screw mandrel, guide rail are installed on each detector
Compare, enormously simplify structure, saved cost.
Brief description of the drawings
Fig. 1 is the half sectional view of top view of the embodiment of the present invention；
Fig. 2 (A) is the fixed disk top view of the embodiment of the present invention；
Fig. 2 (B) is the local A-A cutaway view Amplified images of Fig. 2 (A)；
Fig. 3 (A) is rotating disk top view of the present invention,
Fig. 3 (B) is Fig. 3 (A) B-B sectional views；
Fig. 3 (C) is the upward view that rotating disk is connected to fixed disk；
Fig. 3 (D) is the top view of fixed disk after connection rotating disk；
Fig. 3 (E) is the local C-C cutaway view Amplified images of Fig. 3 (D)；
Fig. 3 (F) is the top view of fixed disk after installation connecting plate；
Fig. 4 (A) is movable part front view；
Fig. 4 (B) is Fig. 4 (A) D-D sectional views,
Fig. 4 (C) is Fig. 4 (A) E-E sectional views；
Fig. 5 (A) is connecting plate front view；
Fig. 5 (B) is Fig. 5 (A) F-F sectional views,
Fig. 5 (C) is the front view that connecting plate is connected with detector；
Fig. 5 (D) is Fig. 5 (C) G-G sectional views.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in figure 1, embodiments of the invention include fixed disk 10 and rotating disk 20；
As shown in Fig. 2 (A), the fixed disk 10 is the rectangular slab with center hole 11, thereon around the center circle
Hole 11 has the chutes 12 of 48 radially spoke distributions, and as shown in Fig. 2 (B), the section of chute 12 is convex shape, each chute
The extended line of 12 axis intersects at the center of circle of the center hole 11；
As shown in Fig. 3 (A), Fig. 3 (B), Fig. 3 (C), the rotating disk 20 is the disk with central through hole 21, disk
The center of circle overlaps with the center of circle of the center hole 11 of the fixed disk, and the aperture of central through hole 21 and the center hole 11 are equal,
The surface of rotating disk 20 has flat thread groove 22, and the flat thread groove 22 forms Archimedian screw on the surface of rotating disk 20
Line；The rotating disk 20 is suspended on the bottom surface of fixed disk 10 by the support wheel 30 being distributed along its even circumferential, has plane
The one of thread groove 22 upwardly, can rotate in the presence of external force around its center of circle；
As shown in Fig. 3 (D), movable part 40 is respectively arranged with each chute 12 of the fixed disk 10, it is described as shown in Fig. 3 (E)
The bottom surface of movable part 40 matches with the flat thread groove 22 of rotating disk, and under the turning effort of flat thread groove 22, each movable part 40 can
To be moved radially along chute 12；
As shown in Fig. 3 (F), the surface of each chute 12 of the fixed disk 10 is mounted on connecting plate 50, itself and corresponding work
Moving part 40 is connected and can adjusted in the position radially with respect to the latter；
As shown in Fig. 4 (A), Fig. 4 (B), Fig. 4 (C), the cross section of movable part 40 is convex shape, with the chute 12
Shape of cross section matches, and the bottom surface of movable part 40 has the raised ridge 41 of twice, can be with the flat thread groove 22 of rotating disk
Engagement；The top surface of movable part 40 has kidney slot 42 and tapped blind hole 43.
As shown in Fig. 5 (A), Fig. 5 (B), Fig. 5 (D), the bottom surface of connecting plate 50 has locating convex block 51, for along described
Kidney slot 42 is slidably matched；There is connecting hole 52, the bottom both sides of connecting hole 52 are respectively provided with the He of pin hole 53 respectively on connecting plate 50
Screw 54；The connecting hole 52 is mounting hole, for passing through the tapped blind hole 43 of itself and the movable part 40 to coordinate by screw,
So as to which connecting plate 50 and movable part 40 be connected；
As shown in Fig. 5 (C), during work, detector 60 is mounted on each connecting plate 50, detector 60 passes through connecting plate 50
On pin hole 53 position and be connected by screw with the screw 54, each detector 60 collectively forms detector rings.
Claims (3)
1. a kind of PET system detector rings aperture adjusting device, including fixed disk（10）And rotating disk（20）, it is characterised in that：
The fixed disk（10）For with center hole（11）Rectangular slab, surround the center hole on rectangular slab（11）Have
The chute of N number of radially spoke distribution（12）, chute section is convex shape, each chute（12）The extended line of axis intersects at
The center hole（11）The center of circle, 6≤N≤100；
The rotating disk（20）For with central through hole（21）Disk, the center hole of the center of circle of disk and the fixed disk
（11）The center of circle overlap, central through hole（21）Aperture and the center hole（11）Aperture it is equal, rotating disk（20）Surface
With flat thread groove（22）, the flat thread groove（22）In rotating disk（20）Surface forms spiral of Archimedes；It is described
Rotating disk（20）Pass through the support wheel being distributed along its even circumferential（30）It is suspended on the fixed disk（10）Bottom surface, there is plane spiral shell
Groove（22）One upwardly, rotating disk can rotate in the presence of external force around its center of circle；
The fixed disk（10）Each chute（12）Inside it is respectively arranged with movable part（40）, the movable part（40）Bottom surface and rotating disk
Flat thread groove（22）Matching, in flat thread groove（22）Under turning effort, each movable part（40）Can be along chute（12）Radially
It is mobile；
The fixed disk（10）Each chute（12）Surface is mounted on connecting plate（50）, connecting plate and corresponding movable part（40）
Connect and can adjust in the position radially with respect to movable part；
During work, each connecting plate（50）On be mounted on detector（60）, each detector（60）Collectively form detector rings.
2. PET system detector rings aperture adjusting device as claimed in claim 1, it is characterised in that：
The movable part（40）Cross section is convex shape, movable part cross section and the chute（12）Shape of cross section matching,
Movable part（40）Bottom surface has the raised ridge of twice（41）, they can be with the flat thread groove of rotating disk（22）Engagement；
Movable part（40）Top surface has kidney slot（42）And tapped blind hole（43）.
3. PET system detector rings aperture adjusting device as claimed in claim 2, it is characterised in that：
The connecting plate（50）Bottom surface has locating convex block（51）, the locating convex block is used for along the kidney slot（42）Slip is matched somebody with somebody
Close；Connecting plate（50）It is upper that there is connecting hole（52）, connecting hole（52）Bottom both sides are respectively provided with pin hole respectively（53）And screw
（54）；The connecting hole（52）For mounting hole, the connecting hole is used for through screw, screw and the movable part（40）Screw thread
Blind hole（43）Coordinate, so as to both can adjust connecting plate（50）Radially with respect to movable part（40）Position again both are connected；
The pin hole（53）For by pin to detector（60）Positioning, the screw（54）For passing through screw and detector
（60）Connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510616004.7A CN105342632B (en) | 2015-09-24 | 2015-09-24 | A kind of PET system detector rings aperture adjusting device |
| PCT/CN2016/099926 WO2017050280A1 (en) | 2015-09-24 | 2016-09-23 | Device for adjusting bore size of detector ring of pet system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510616004.7A CN105342632B (en) | 2015-09-24 | 2015-09-24 | A kind of PET system detector rings aperture adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105342632A CN105342632A (en) | 2016-02-24 |
| CN105342632B true CN105342632B (en) | 2018-03-09 |
Family
ID=55318812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510616004.7A Active CN105342632B (en) | 2015-09-24 | 2015-09-24 | A kind of PET system detector rings aperture adjusting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105342632B (en) |
| WO (1) | WO2017050280A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105342632B (en) * | 2015-09-24 | 2018-03-09 | 华中科技大学 | A kind of PET system detector rings aperture adjusting device |
| CN107616806A (en) * | 2017-09-25 | 2018-01-23 | 广东影诺数字医学科技有限公司 | PET system detector rings position regulating unit and transmitting imaging device |
| CN107744399A (en) * | 2017-09-25 | 2018-03-02 | 中派科技（深圳）有限责任公司 | High energy particle injected system and high energy particle injection control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5825031A (en) * | 1996-10-11 | 1998-10-20 | Board Of Regents The University Of Texas System | Tomographic pet camera with adjustable diameter detector ring |
| CN101990643A (en) * | 2008-04-10 | 2011-03-23 | 皇家飞利浦电子股份有限公司 | Modular multi-geometry pet system |
| CN102178542A (en) * | 2011-04-02 | 2011-09-14 | 苏州瑞派宁科技有限公司 | Positron emission tomography imaging frame with variable structure |
| KR101317366B1 (en) * | 2012-04-26 | 2013-10-11 | 주식회사 져스텍 | Device for positron emission tomography moving in a plane |
| CN103549968A (en) * | 2013-10-15 | 2014-02-05 | 沈阳东软医疗***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 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110130954A (en) * | 2010-05-28 | 2011-12-06 | 가천의과학대학교 산학협력단 | Pet device |
| JP5749148B2 (en) * | 2011-12-21 | 2015-07-15 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | Radiation tomography apparatus, radiation detection apparatus, and spatial resolution switching method in radiation tomography |
| CN105342632B (en) * | 2015-09-24 | 2018-03-09 | 华中科技大学 | A kind of PET system detector rings aperture adjusting device |
-
2015
- 2015-09-24 CN CN201510616004.7A patent/CN105342632B/en active Active
-
2016
- 2016-09-23 WO PCT/CN2016/099926 patent/WO2017050280A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5825031A (en) * | 1996-10-11 | 1998-10-20 | Board Of Regents The University Of Texas System | Tomographic pet camera with adjustable diameter detector ring |
| CN101990643A (en) * | 2008-04-10 | 2011-03-23 | 皇家飞利浦电子股份有限公司 | Modular multi-geometry pet system |
| CN102178542A (en) * | 2011-04-02 | 2011-09-14 | 苏州瑞派宁科技有限公司 | Positron emission tomography imaging frame with variable structure |
| KR101317366B1 (en) * | 2012-04-26 | 2013-10-11 | 주식회사 져스텍 | Device for positron emission tomography moving in a plane |
| CN103549968A (en) * | 2013-10-15 | 2014-02-05 | 沈阳东软医疗***有限公司 | PET (positron emission tomography) detector and detector ring thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105342632A (en) | 2016-02-24 |
| WO2017050280A1 (en) | 2017-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105342632B (en) | A kind of PET system detector rings aperture adjusting device | |
| US9554489B2 (en) | Systems for simplifying a detector head | |
| CN106415197B (en) | Correct the method for the surface profile data of annular rotary body and the device for the appearance for checking ring rotation body | |
| CN201880229U (en) | Radiotherapy system | |
| WO2014101586A1 (en) | Wafer prealignment method | |
| CN202852351U (en) | Ground reconnaissance radar tripod platform manual adjustment turnplate | |
| CN105445895B (en) | A kind of mirror support adjusting apparatus | |
| CN103340645A (en) | Method and device for mechanical calibration of multi-system medical device | |
| CN109163177A (en) | A kind of radar meter applied to tunnel with fast installation support | |
| CN205759156U (en) | A kind of radiation locating support | |
| US10775154B2 (en) | Inner circumferential length measuring device for circular member | |
| WO2019057160A1 (en) | Position adjustment unit for detector ring of pet system and emission tomography device | |
| US11150149B2 (en) | Gear positioning device, stress measurement system, gear positioning method, and stress measurement method | |
| CN105852813A (en) | Medical multi-dimensional infrared acquisition system | |
| US10775152B2 (en) | Inner circumferential length measurement method for circular member | |
| CN106125018A (en) | The magnetic field measuring device of a kind of superconducting coil first harmonic and measuring method thereof | |
| US10775153B2 (en) | Inner circumferential length measuring device for circular member | |
| CN108015131A (en) | The elastic full circle head of rolling in a kind of pipe fitting | |
| CN106949803A (en) | A kind of flexible floating measurement apparatus | |
| CN107253669B (en) | Rotary machinery locating and detecting device and position finding and detection method | |
| CN104596468B (en) | A kind of vehicle hub detection system and using method thereof | |
| US11085993B2 (en) | Method and apparatus of positioning with curved light surface | |
| CN206586959U (en) | A kind of C-arm image caliberating device | |
| CN207306676U (en) | A kind of application adaptability PET is imaged rack | |
| CN104567786A (en) | Vehicle wheel hub detecting system capable of dissipating heat by fan and using method of vehicle wheel hub detecting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |