CN105263251B - Target assembly and the linear accelerator including the target assembly - Google Patents
Target assembly and the linear accelerator including the target assembly Download PDFInfo
- Publication number
- CN105263251B CN105263251B CN201510670475.6A CN201510670475A CN105263251B CN 105263251 B CN105263251 B CN 105263251B CN 201510670475 A CN201510670475 A CN 201510670475A CN 105263251 B CN105263251 B CN 105263251B
- Authority
- CN
- China
- Prior art keywords
- target
- cover
- accelerating tube
- target assembly
- output window
- 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
Landscapes
- Particle Accelerators (AREA)
Abstract
The invention discloses a kind of target assembly, and it includes：Pedestal, target and cover.Wherein, target is installed on the pedestal accessiblely with oxygen, for producing X ray under the electronic impact from accelerating tube.Cover the material that can pass through by electronics to be made, be arranged between the output window of the target and the accelerating tube, for preventing the output window of accelerating tube described in the oxide contaminant of target.According to the target assembly of the present invention, the output window of target and accelerating tube can be obstructed by cover, therefore, in the course of the work, even if target is oxidized the oxide of generation melting and is sputtered, these oxides can be also collected on cover, so as to the pollution of the output window from accelerating tube.
Description
Technical field
The present invention relates to a kind of target assembly, more particularly to a kind of target assembly of the linear accelerator of radiotherapy apparatus.
Background technology
Radiotherapy is a kind of usual way for the treatment of of cancer, and it is thin to kill cancer on cancerous tissue that it uses x-ray irradiation
Born of the same parents, reach the purpose for the treatment of.
Above-mentioned radiotherapy generally use is medical computerized linear accelerator, and it includes accelerating tube and treatment head, wherein,
The operation principle of accelerating tube is to accelerate the electronics from electron gun in the presence of microwave electric field, and electron beam is hit in target assembly
Target produce X ray, for treating patient.
Generally, target assembly is arranged at outside accelerating tube and exposed in atmosphere, and the material of target is generally tungsten.So, work
If in the case that close rate is higher when making, the temperature of target is just rapid to be risen and generates tungsten oxide by the dioxygen oxidation in air, and
And the tungsten oxide melts at 1100-1250 degrees Celsius, now, the Impact energy of the electron beam from accelerating tube can make the melting
Tungsten oxide splashes under state, the tungsten oxide of splashing may be direct splashing to the accelerating tube output window that target substrate is faced
On, in the course of time, the tungsten oxide accumulated on accelerating tube output window can cause its heat conductivility to be greatly reduced, thus occur damaged.
It is also known that it is bothersome work regularly to change the accelerating tube output window, and the breakage of accelerating tube output window is led to
Often mean the breakage of whole accelerating tube, i.e. be likely to require and change whole accelerating tube, this is very expensive for a user
's.
The content of the invention
It is an object of the invention to provide a kind of target assembly.The target assembly includes：Pedestal；Target, it can contact with oxygen
Ground is installed on the pedestal, for producing X ray under the electronic impact from accelerating tube；And cover, it can be saturating by electronics
The material crossed is made, and is arranged between the output window of the target and the accelerating tube, for preventing the oxide contaminant institute of target
State the output window of accelerating tube.
Optionally, the material of the cover is carbon or beryllium.Preferably, the material of the cover is graphite or graphite film.
Optionally, the thickness of the cover is 10 μm -100 μm.Preferably, the thickness of the cover is 10 μm -30 μm.
Optionally, the cover is releasably attached to the pedestal or is installed to the base bracket of the pedestal
On.
According to another aspect of the present invention, a kind of clinac is disclosed, it includes foregoing target group
Part.
, can be by cover barrier target and the output window of accelerating tube, therefore, in the course of work according to the target assembly of the present invention
In, even if target is oxidized the oxide of generation melting and is sputtered, these oxides can be also collected on cover, so that from
The pollution of the output window of accelerating tube.So, even if when the heat conductivility of cover is very poor or damaged, as long as changing cover, therefore,
Maintenance is relatively easy, and maintenance cost is very low.
Brief description of the drawings
Fig. 1 is the structural representation formed according to the target assembly of one embodiment of the present invention and a part for accelerating tube
Figure；
Fig. 2 is the structural representation formed according to the target assembly of another embodiment of the invention and a part for accelerating tube
Figure；
Fig. 3 is the structural representation formed according to the target assembly of the another embodiment of the present invention and a part for accelerating tube
Figure；
Fig. 4 is Fig. 3 partial enlarged drawing；
Fig. 5 is the structural representation formed according to the target assembly of the another embodiment of the present invention and a part for accelerating tube
Figure；And
Fig. 6 is Fig. 5 partial enlarged drawing.
Embodiment
X ray target assembly proposed by the present invention is described in further detail below in conjunction with the drawings and specific embodiments.Root
According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that accompanying drawing is using very simple
The form of change and non-accurately ratio is used, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
Fig. 1 is the structural representation formed according to the target assembly of one embodiment of the present invention and a part for accelerating tube
Figure.As shown in figure 1, the target assembly 100 includes pedestal 102, target 104 and cover 106.Wherein, the pedestal 102 is good by heat conductivility
Good metal is all to be made of such as copper, and is limited thereon fluted；The target 104 is generally made up of the metal such as tungsten of high atomic weight, and
It is installed in aforementioned grooves；Cover 106 is made up of the substantially transparent material of electronics such as carbon or beryllium, is disposed in target 104 and adds
Between the output window 206 of fast pipe 200.It is also known that foregoing accelerating tube 200 include be used for accelerate electronics accelerating cavity 202, with
Accelerating cavity 202 couple and for accelerate the drift tube 204 that passes through of electronics and supplied for electronic line eventually through output window 206.
So, the electronics from negative electrode finally strikes pedestal 102 by passing through output window 206 after accelerating cavity 202 and drift tube 204
On target 104 on, as a result produce photon simultaneously generate heat.
More specifically, the cover 106 is installed on accelerating tube 200 and made by the fixing device 300 fixed to accelerating tube 200
The cover 106 is between the output window 206 and target 104 of accelerating tube 200.The fixing device 300 can be by defeated with accelerating tube 200
The material that the support section material of exit window 206 is essentially identical is made, here, being for example made of copper, it includes annular support member 302
And the annular groove (not shown) limited on annular support member 302.The company of fixation in a manner of such as welding of annular support member 302
It is connected on the output window 206 of accelerating tube 200, the shape of foregoing cover 106 and the shape of annular groove match each other and be housed inside it
Inside it is locked into position again by lock piece (not shown).The lock piece for example can be that multiple annulars that are pivotably connected to are propped up
Claw in support member 302, after cover 106 is fitted in annular groove, multiple claws are pivoted to the position engaged with cover 106
Place.
Optionally, the annular support member 302 can be detachably secured the output window for being connected to accelerating tube 200
On 206.
Preferably, the material of the cover 106 is graphite or graphite film, and the graphite film is film macromolecule made of graphite
Polymer.By made of previous materials cover 106 thickness between 10 μm -100 μm, it is preferable that between 10 μm -30 μm.This
The cover 106 of sample has the thermal conductivity of excellent performance.
According to aforementioned structure, when linear accelerator works, if in the case that close rate is higher, such as, about 600MU/min,
The temperature of target 104 rises rapidly made of tungsten and one part generates tungsten oxide by the dioxygen oxidation in air, and
The tungsten oxide melts at 1100-1250 degrees Celsius, and now, the Impact energy of the electron beam from accelerating tube 200 can make this molten
Melt the tungsten oxide splashes under state, the tungsten oxide of splashing can be stopped by foregoing cover 106 and be collected in it towards target 104
On surface, without being splashed on the output window 206 of accelerating tube 200.So, because the output window 206 of accelerating tube 200 will not be by
The target oxide of such as tungsten oxide is polluted, therefore accelerating tube 200 is safely protected；Moreover if by the cover 106 is gathered
Target oxide it is excessive and when causing its heat conductivility too low so as to have a strong impact on close rate output, the cover 106 can be changed.
Fig. 2 be Fig. 1 embodiment a kind of modification, in the present embodiment, with the same or analogous elements of Fig. 1 with Fig. 1
Identical reference represents.Mainly sketch the embodiment from the difference with previous embodiment below.Fixing device 300
It can be made up of the essentially identical material such as copper of the support section material of the output window 206 with accelerating tube 200, it includes annular
Support member 302 and cover plate 304.The annular support member 302 surrounds hollow via-hole close to one end of the output window 206 of accelerating tube 200
Stretch out and formed with boss 302a, the periphery of neighbouring boss equably offers multiple screw threads on annular support member 302
Blind hole and further equally offer multiple tapped through holes on the periphery away from boss 302a.The center of cover plate 304 defines ladder
Shape through hole, the aperture away from the side of accelerating tube 200 is bigger and is configured to accommodate the other end of annular support member 302
Boss 302a shape, the periphery of cover plate 304 are further defined with multiple tapped through holes.During installation, cover 106 is placed in annular support member
On 302 boss 302a, the larger through hole in the center of cover plate 304 accommodates the boss 302a of annular support member 302 and makes shoulder hole
Shoulder compress cover 106, recycle the fastener of such as bolt to pass through the tapped through hole and annular support member 302 of cover plate 304
Tapped blind hole so that cover plate 304 and annular support member 302 to be fixed together, finally, pass through the fastener of such as bolt
Through annular support member 302 tapped through hole with by annular support member 302 be fixed to accelerating tube 200 on.It should be appreciated that should
With this fixing device 300, it is necessary to be threaded blind hole on accelerating tube 200 in advance.It is also to be understood that the annular support member
302nd, the entirety that cover 106 and cover plate 304 are formed can be fixed on accelerating tube 200 at interval with accelerating tube 200.
Fig. 3 is the structural representation formed according to the target assembly of another embodiment of the invention and a part for accelerating tube
Figure；Fig. 4 is Fig. 3 partial enlarged drawing.In the present embodiment, with the same or analogous elements of Fig. 1 with Fig. 1 identical accompanying drawing marks
Note represents.It is with previous embodiment difference, fixing device 300 is not to be fixed on accelerating tube 200 and be secured to
Install on the pedestal 102 of target 104 and cover 106 is arranged between the output window 206 of accelerating tube 200 and target 104.
Specifically, referring to Fig. 3 and Fig. 4, fixing device 300 is by the material essentially identical with the material of pedestal 102 such as copper
Form, it includes annular support member 302 and cover plate 304, and one end of the support member 302 is fixedly attached in a manner of such as welding
On pedestal 102, the center of cover plate 304 defines stepped throughhole, more greatly and is configured to close to the aperture of the side of target 104
Accommodate the shape of the other end of support member 302.During installation, cover 106 is placed on the other end of support member 302, the court of cover plate 304
Down so that larger through hole accommodates the other end of support member 302 and the shoulder of shoulder hole is compressed cover 106, then pass through such as bolt
Fastener cover plate 304 is fixedly attached on pedestal 102.It is appreciated that the support member 302 can close to one end of pedestal 102
It can also be fixed with that need not be welded on pedestal 102 finally by the fastener through such as bolt of cover plate 304.
The material of the cover 106 is preferably graphite or graphite film, wherein the graphite film is that film made of graphite is high
Molecularly Imprinted Polymer.By made of previous materials cover 106 thickness between 10 μm -100 μm, it is preferable that 10 μm -30 μm it
Between.Such cover 106 has the thermal conductivity of excellent performance.
What the space that target assembly 100 and fixing device 300 are formed can be in fluid communication with air, i.e. non-tight, also may be used
To be sealed with oxygen-containing gas, no matter which kind of situation, as long as the cover 106 can prevent target 104 be oxidized after melt substance
It is splashed on the output window 206 for the accelerating tube 200 that target 104 is faced, in other words, as long as cover 106 can prevent the target
104 oxide such as tungsten oxide does not pollute the output window 206 of accelerating tube 200.
The space and air that the structure of embodiment according to Fig. 3 and Fig. 4, target assembly 100 and fixing device 300 are formed
It is in fluid communication, when linear accelerator works, in the case where close rate is higher, such as, and about 600MU/min, the target made of tungsten
104 temperature rises rapidly and one part generates tungsten oxide by the dioxygen oxidation in air, and the tungsten oxide exists
Melted at 1100-1250 degrees Celsius, now, the Impact energy of the electron beam from accelerating tube 200 can make under the molten condition
Tungsten oxide splashes, the tungsten oxide of splashing can stop by foregoing cover 106 and be collected in it towards on the surface of target 104, and
It will not be splashed on the output window 206 of accelerating tube 200.
Fig. 5 is the structural representation formed according to the target assembly of the another embodiment of the present invention and a part for accelerating tube
Figure；Fig. 6 is Fig. 5 partial enlarged drawing.In the present embodiment, with the same or analogous elements of Fig. 1-Fig. 4 with identical with Fig. 1-Fig. 4
Reference represent.It is with foregoing several embodiment differences, fixing device 300 is not to be fixed to accelerating tube 200
Above or it is affixed directly to be secured in the base bracket 108 of installation pedestal 102 on pedestal 102, so that cover 106 is arranged in
Between the output window 206 and target 104 of accelerating tube 200.Specifically, the fixing device 300 includes support member 302 and cover plate 304.Should
Support member 302 includes annular sidewall 302a and end wall 302b, wherein, annular sidewall 302a one end is in a manner of such as welding
It is fixedly attached in base bracket 108, foregoing end wall 302b forms the other end in side wall 302a, is defined on end wall 302b
Through hole, boss 302c is also formed with around through hole.Stepped throughhole is defined on cover plate 304, close to the aperture of the side of target 104
Boss 302c that is bigger and being configured to accommodate support member 302.During installation, cover 106 is supported on the end of support member 302
On wall 302b boss 302c, cover plate 304 makes larger through hole accommodate the boss 302c of support member 302 down and makes shoulder hole
Shoulder compresses cover 106, and cover plate 304 is fixedly attached on support member 302 finally by the fastener of such as bolt.It can manage
Solution, the annular sidewall 302a of the support member 302 may not necessarily be welded in base bracket 108 close to one end of base bracket 108
Also can be fixed finally by the fastener through such as bolt of cover plate 304.
Optionally, removably such as screw fixation method is fixed to base bracket for one end of support member 302
It is that preferably, so, conveniently can dismantle and change target on 108.Alternatively, the other end of support member 302 can the company of fixation
It is connected to or itself is formed with can be by the snap device commonly used in such as field of connectors that cover 106 is attached to or similar method
Flange fixing mechanism of blue disk etc., by bindiny mechanism, cover 106 is connected on the support member 302 and is supported on accelerating tube
Between 200 output window 206 and target 104.
The material of the cover 106 is preferably graphite or graphite film, wherein the graphite film is that film made of graphite is high
Molecularly Imprinted Polymer.By made of previous materials cover 106 thickness between 10 μm -100 μm, it is preferable that 10 μm -30 μm it
Between.Such cover 106 has the thermal conductivity of excellent performance.
So, when linear accelerator works, in the case where close rate is higher, such as, about 600MU/min, it is made up of tungsten
The temperature of target 104 rise rapidly and one part generates tungsten oxide by the dioxygen oxidation in air, and the tungsten oxide
Melted at 1100-1250 degrees Celsius, now, the Impact energy of the electron beam from accelerating tube 200 can make under the molten condition
Tungsten oxide splashes, the tungsten oxide of splashing can stop by foregoing cover 106 and be collected in it towards on the surface of target 104,
Without being splashed on the output window 206 of accelerating tube 200.
It is appreciated that several embodiments of the above be not exhaustive nor restricted, for example, being filled for fixed
For putting 300, its act on be only that by cover 106 be arranged in accelerating tube 200 output window 206 and target assembly 100 target 104 it
Between, so as to make the oxide of target 104 (if the material of target 104 is tungsten, the oxide is tungsten oxide) gather thereon or
Person prevents the oxide of target 104 to be splashed on the output window 206 of accelerating tube 200, and is secured on earth for fixing device 300
On accelerating tube 200 or on pedestal 102 or do not required in base bracket 108, further, it is to be understood that the fixing device
300 are also secured on miscellaneous part.It is also to be understood that the cover 106 can be disposed adjacent to the output window of accelerating tube 200
206 even can also be arranged in the output window 206 of accelerating tube 200 and the centre position of target 104 just close to target 104, no matter which
Kind situation, can realize the purpose of the present invention.In order to realize that protection molten oxide gathers or be splashed to acceleration
On the output window 206 of pipe 200, what the minimum area of the cover 106 can calculate according to it apart from the distance of target 104, and generally
Ground, the area of the cover 106 add predetermined redundant area for minimum area.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Scope.
Claims (8)
1. a kind of target assembly, it includes：
Pedestal；
Target, it is installed on the pedestal accessiblely with oxygen, is penetrated for producing X under the electronic impact from accelerating tube
Line；And
Cover, its material that can pass through by electronics are made, are arranged between the output window of the target and the accelerating tube, for preventing
The only output window of accelerating tube described in the oxide contaminant of the target.
2. target assembly according to claim 1, wherein, the material of the cover is carbon or beryllium.
3. target assembly according to claim 1, wherein, the material of the cover is graphite or graphite film.
4. target assembly according to claim 1, wherein, the thickness of the cover is 10 μm -100 μm.
5. target assembly according to claim 4, wherein, the thickness of the cover is 10 μm -30 μm.
6. target assembly according to claim 1, wherein, the cover is releasably attached on the accelerating tube.
7. target assembly according to claim 1, wherein, the cover is releasably attached to the pedestal or is installed to
In the base bracket of the pedestal.
8. a kind of clinac, it includes the target assembly as described in claim any one of 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670475.6A CN105263251B (en) | 2015-10-13 | 2015-10-13 | Target assembly and the linear accelerator including the target assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670475.6A CN105263251B (en) | 2015-10-13 | 2015-10-13 | Target assembly and the linear accelerator including the target assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105263251A CN105263251A (en) | 2016-01-20 |
| CN105263251B true CN105263251B (en) | 2018-02-27 |
Family
ID=55102706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510670475.6A Active CN105263251B (en) | 2015-10-13 | 2015-10-13 | Target assembly and the linear accelerator including the target assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105263251B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176524A (en) * | 2019-06-11 | 2019-08-27 | 厦门乾照光电股份有限公司 | A kind of film growth module, method and LED preparation method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455285A (en) * | 2016-11-14 | 2017-02-22 | 上海联影医疗科技有限公司 | Target assembly and accelerator provided with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261764A (en) * | 2000-01-25 | 2000-08-02 | 清华大学 | High acceleration gradient vertical double ray medical standing wave accelerating tube |
| CN1509778A (en) * | 2002-09-24 | 2004-07-07 | ������ҽ�ƽ�������˾ | Tungsten composite X-ray target assembly for radioactive treatment |
| CN102369587A (en) * | 2009-04-03 | 2012-03-07 | 伊克斯拉姆公司 | Supply of a liquid-metal target in x-ray generation |
| CN102498541A (en) * | 2009-08-31 | 2012-06-13 | 瓦里安医疗***公司 | Target assembly with electron and photon windows |
| CN104795301A (en) * | 2014-08-06 | 2015-07-22 | 上海联影医疗科技有限公司 | X-ray target assembly |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07169598A (en) * | 1993-12-15 | 1995-07-04 | Nissin High Voltage Co Ltd | Ion implantation device |
| JP3098937B2 (en) * | 1995-07-04 | 2000-10-16 | 三菱電機株式会社 | Linear accelerator |
| JP4392280B2 (en) * | 2004-03-26 | 2009-12-24 | 株式会社日立製作所 | Radioisotope production apparatus and radiopharmaceutical production apparatus |
| JP5875297B2 (en) * | 2011-08-31 | 2016-03-02 | キヤノン株式会社 | Radiation generator tube, radiation generator using the same, and radiation imaging system |
-
2015
- 2015-10-13 CN CN201510670475.6A patent/CN105263251B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261764A (en) * | 2000-01-25 | 2000-08-02 | 清华大学 | High acceleration gradient vertical double ray medical standing wave accelerating tube |
| CN1509778A (en) * | 2002-09-24 | 2004-07-07 | ������ҽ�ƽ�������˾ | Tungsten composite X-ray target assembly for radioactive treatment |
| CN102369587A (en) * | 2009-04-03 | 2012-03-07 | 伊克斯拉姆公司 | Supply of a liquid-metal target in x-ray generation |
| CN102498541A (en) * | 2009-08-31 | 2012-06-13 | 瓦里安医疗***公司 | Target assembly with electron and photon windows |
| CN104795301A (en) * | 2014-08-06 | 2015-07-22 | 上海联影医疗科技有限公司 | X-ray target assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176524A (en) * | 2019-06-11 | 2019-08-27 | 厦门乾照光电股份有限公司 | A kind of film growth module, method and LED preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105263251A (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105263251B (en) | Target assembly and the linear accelerator including the target assembly | |
| US9508524B2 (en) | Radiation generating apparatus and radiation imaging apparatus | |
| ES2608863T3 (en) | Melting furnace that includes an ion emitter of ionic plasma by wire discharge | |
| CN1910968B (en) | X-ray tube cooling device and cooling method and X-ray tube assembly | |
| US7924983B2 (en) | Thermionic emitter designed to control electron beam current profile in two dimensions | |
| US3064153A (en) | High intensity light source | |
| CN109308985B (en) | Target assembly and manufacturing method thereof | |
| CN1808686B (en) | Ultraviolet irradiation apparatus | |
| EP3966169A1 (en) | Lamp module comprising light-emitting diodes and photoreactor | |
| KR101986413B1 (en) | Electron emission source unit and digital x-ray source | |
| KR102047436B1 (en) | X-ray source unit and x-ray apparatus | |
| DE102008034568A1 (en) | X-ray tube | |
| TW201021079A (en) | Metal halide lamp | |
| BR112020005917A2 (en) | melting furnace with electrode rod rotatable and simultaneously movable | |
| US6069339A (en) | Dual flow nozzle shield for plasma-arc torch | |
| JP2008500686A (en) | Apparatus for generating and emitting XUV radiation | |
| CN210268173U (en) | Smelting device for aluminum foil profile production | |
| CN211490144U (en) | Laser cutting equipment | |
| GB2524449A (en) | Apparatus for measuring temperature of glass melting furnace | |
| KR101218075B1 (en) | An improved plasma torch for use in a waste processing chamber | |
| CN218009753U (en) | Radiator for X-ray vacuum tube of medical instrument | |
| CN219123176U (en) | Cooling device for anode target of X-ray tube | |
| JP4023398B2 (en) | Ultraviolet light emitting lamp and light irradiator using the same | |
| JP4396752B2 (en) | Discharge lamp device | |
| JP2011070833A (en) | Lighting system equipped with wind protection member |
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 | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201807 No. 2258 Chengbei Road, Jiading Industrial Zone, Jiading District, Shanghai. Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201807 No. 2258 Chengbei Road, Jiading Industrial Zone, Jiading District, Shanghai. Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |