CN201164473Y - Portable X-ray equipment - Google Patents
Portable X-ray equipment Download PDFInfo
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- CN201164473Y CN201164473Y CNU200720173220XU CN200720173220U CN201164473Y CN 201164473 Y CN201164473 Y CN 201164473Y CN U200720173220X U CNU200720173220X U CN U200720173220XU CN 200720173220 U CN200720173220 U CN 200720173220U CN 201164473 Y CN201164473 Y CN 201164473Y
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Abstract
The utility model provides a portable X-ray machine which includes an X-ray generator, a lead protecting cover being arranged on the circumference of an X-ray tube, and an opening and an X-ray collimator pointing to an X-ray outlet; an X-ray image intensifier which is assembled in a vacuum glass tube by the order that a photocathode, an electron multiplier plate, and a fluorescent screen which are insulated from each other, the vacuum glass tube arranged in the aluminum protecting cover which is provided with a window at the side of the fluorescent screen in the vacuum glass tube, and an aluminum glass plate is arranged on the position of the window. The X-ray image intensifier is arranged on an image intensifier bracket; a motor of a scanner causes the X-ray image intensifier to implement translation by a driving wheel, a screw rod guideway, and the image intensifier bracket; a digital camera of a collector is arranged outside a camera obscura, and the focus of the digital camera aims at the fluorescent screen in the X-ray image intensifier; the X-ray generator, the scanner and the collector are electrically connected with a controller. All the parts of the X-ray machine are integrated into an integer by that the X-ray generator is fixed on the lower part outside a square part of the camera obscura by two connecting rods.
Description
Technical field
This utility model relates to a kind of X-ray machine, in detail, relates to a kind of mobile X-ray unit.
Background technology
X-ray machine is a very wide weary practical technique of application as diagnosis and detection means.Over more than 100 year, this technology has had the development of leap.Mainly show two aspects: the one, the generating technique of X ray; The 2nd, the obtaining and treatment technology of testing result.In today, testing result obtain with treatment technology the sixth of the twelve Earthly Branches through becoming the core and the key of ray machine development, be the key character of distinguishing the X-ray machine classification.Representative X-ray machine type has at present:
1) traditional X-ray ray machine.It is directly to obtain testing result with film.Be characterized in that instrument is simple to operation, detection area big (only being subject to film size).Its disadvantage is that x-ray dose is big, and the people is injured greatly.The processing labor intensity of its result of detection is also big in addition, also makes mistakes easily.This instrument is eliminated just gradually.
2) high function X ray image intensifier (being commonly called as the major part pipe) X-ray machine.The major part pipe is made up of photocathode, electronics compressibility, microchannel electron multiplication plate (MCP) and fluorescent screen.Detected result converts electronics to through large-area photocathode, compresses then, amplifies, is presented on the small size fluorescent screen, amplifies with optical system at last to return to original size, uses film photographic, also available DV collection and digitized.This X-ray machine is compared with the traditional X-ray ray machine, at first is that required x-ray dose has bigger reduction, only is its 1/10.Next is that spatial discrimination is that 4.5pl/mm and dynamic range are that 70-100 increases.The testing result digitized makes storage, transmission more convenient reliable.Also available computers is for further processing in case of necessity, can obtain more useful information.The shortcoming of this X-ray machine is a major part pipe manufacturer complex process, and difficulty is big, and it is more difficult greatly to do, and the maximum probe area is circular, and diameter is 50cm.This X-ray machine volume is big, heaviness and cost height, but becomes the main type of using in the large hospital at present its sixth of the twelve Earthly Branches.
3) Direct Digital X-ray machine.This ray machine is a kind of novel machine of just making in 99 years in China.As the X ray image intensifier, its sensitivity is very high with special multiwire proportional chamber for this X-ray machine.The characteristics of this X-ray machine have: required x-ray dose only is the 1/30-1/100 of traditional X-ray ray machine; Dynamic range is 150; Detection area can reach 120cm*40cm; The testing result Direct Digitalization, its content, level are abundanter.Spatial discrimination not high (1.4--2.5pl/mm).Its major defect is that the multiwire proportional chamber manufacturing is difficult for the cost height.Owing to adopt scan mode, it can not needing as the heart radiography carry out the inspection of short time imaging in addition.Testing result machine is as calculated carried out image reconstruction with special-purpose software, and behaviour's swindleness is done personnel and must be had certain computer and software theory level.This X-ray machine volume is also big, heaviness and cost height, and use existing the sixth of the twelve Earthly Branches in how tame large hospital.
4) the portable view formula of low dosage X-ray machine.This X-ray machine is to use the photocathode by CsI, the X ray image intensifier that MCP and fluorescent screen are formed, and it is compared with multiwire proportional chamber with the major part pipe, and its manufacturing process is simple, easy and cost is low.Its needed x-ray dose only for the traditional X-ray ray machine 1/10, spatial discrimination is 4pl/mm-4.5pl/mm, dynamically model Wall is 70-100.The performance of this X-ray machine is pretty good, and maximum characteristics are light and handy, portably use convenient and cost low, its shortcoming also is that deadly defect is that detection area is limit by the MCP size, present maximum probe area is a garden shape, diameter is 10cm, and yield rate is not high.It is 5cm and 7.5cm that general detection area has only diameter, therefore the range of application of this X-ray machine is very restricted.
The utility model content
The purpose of this utility model is to overcome the defective that exists in the above-mentioned background technology, and the mobile X-ray unit of a kind of big detection area and ultra low-volume is provided.
For achieving the above object, the mobile X-ray unit that this utility model provides comprises:
One x ray generator around the little focus miniature X ray pipe of x ray generator, is provided with lead protecting cover, and this lead protecting cover has a long narrow strip gab in the X ray exit of X-ray tube, and the x-ray collimator of a plumbous system also is equipped with in the outside of this opening part; This X-ray tube electrically connects a power supply;
One X ray image intensifier, according to photocathode, electron multiplication plate and fluorescent screen order mutually insulated be arranged in parallel and be assembled in the glass tube with vacuum; Photocathode and electron multiplication plate are microchannel electron multiplication plate; Getter is housed in the glass tube with vacuum, and from glass tube with vacuum, draw the electron multiplication plate respectively, the power supply wiring and the ground wire of fluorescent screen and getter, all electrically connect power supply; Glass tube with vacuum places in the aluminum protective cover, and the fluoroscopic side of this aluminum protective cover in glass tube with vacuum is provided with a window, and this window place is provided with a lead glass plate.The X ray image intensifier is installed on the image intensifier support;
The one scan device is a driving device, and wherein the driving wheel of motor is connected with the screw rod guide rail; This screw rod guide rail is equipped with the image intensifier support, and image intensifier support and screw rod guide rail are contained in the camera bellows;
One harvester, wherein photographing unit is contained in outside the camera bellows, the fluorescent screen in the X ray image intensifier in focus of this photographing unit;
X ray generator is fixed on the bottom of camera bellows by two link rods, thereby this X-ray machine various piece is joined together.Above-mentioned x ray generator, power supply, scanning device and harvester electrically connect a controller.
Described mobile X-ray unit, wherein the microchannel electron multiplication plate as photocathode and electron multiplication plate is that multi-disc is connected in the X ray image intensifier.
Described mobile X-ray unit, wherein the junction of microchannel electron multiplication plate is the skewed of 30-60 degree.
Described mobile X-ray unit, wherein the junction of microchannel electron multiplication plate is the skewed of 45 degree.
Described mobile X-ray unit, wherein fluorescent screen is a sprayed with fluorescent powder on the electro-conductive glass sheet.
Described mobile X-ray unit, wherein photographing unit is a digital camera.
Described mobile X-ray unit, wherein digital camera connects a computer.
The good effect that the utlity model has is as follows:
1) ultra-low-dose X-ray.The needed roentgendosis of this utility model has only 1/tens of traditional X-ray ray machine, has reduced widely the people is injured.This utility model is provided with lead protecting cover around the X-ray tube that produces X ray.Lead protecting cover only penetrates direction at X ray a long narrow opening, and plumbous system collimator also is equipped with in the outside of opening.The X ray that penetrates from lead system collimator directly faces toward the X ray image intensifier, and the X ray of other direction scattering is very weak.Operator operate away from X-ray machine (greater than a meter), and its scattered x-ray is littler, to visiting almost not injury of operator.Operator can work under without any the safeguard procedures condition.
2) clear picture quality height.X ray image intensifier of the present utility model is under normal condition, and spatial discrimination can reach 4,5pl/mm.And because ray of the present utility model is a long narrow slit, and through collimating device collimation, this has reduced the harmful effect of scattered ray to image again, and picture quality increases again.Image by the digital camera collection also can be imported computer for further processing, as image local amplification, rotating, gray scale adjusting, image border processing, framing and mark etc., picture quality is further enhanced, thereby can improves diagnostic level.These useful data can store or print, and also can network, and realize that remote diagnosis, education and data are shared.
3) detection area in principle without limits.Detection area of the present utility model is determined by the length of X ray image intensifier and sweep length.The length of X ray image intensifier can be selected, and also a plurality of image intensifier polyphones can be used.Realization is any to be selected and sweep length is held very much.Therefore, detection area of the present utility model can be selected as required.
4) volume is little in light weight easy to carry.This utility model is little because of the dosage of required X ray, the small-sized power supply composition x ray generator that therefore can adopt little focus miniature X ray pipe and match.The X ray image intensifier also only is the rectangular tube of 4.5cm*4.5cm, and these critical pieces all volume are little, and are in light weight.Complete machine can be packed in the suitcase, brings in the patient family patient is diagnosed, and is very convenient.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the main body profile of x ray generator among Fig. 1.
Fig. 3 is the profile of X ray image intensifier among Fig. 1.
Fig. 4 is a scanning device sketch map among Fig. 1.
The specific embodiment
This utility model adopts microscler X ray image intensifier, (detection area in principle without limits to obtain big detection area by scan mode, except that the image intensifier that can select different length, also can use by a plurality of image intensifier polyphones, sweep length can be selected as required, so can obtain needed detection area).
Microscler X ray image intensifier in this utility model is made up of photocathode, MCP and fluorescent screen.Photocathode adopts commercial MCP to substitute CsI as photocathode.The required x-ray dose of this image intensifying only is the 1/20-1/50 of traditional X-ray ray machine; Spatial discrimination can reach 4.5pl/mm; Dynamic range is 70-100.As the MCP of photocathode with as the width of the MCP of electron multiplication, (also can select as required, when requiring to carry out to need the inspection of short time imaging as the heart radiography, its width is wide more good more generally to be chosen to be 1cm.Width is wide more in addition, and abutment joint is also more little to the image influence).Its length limited is difficult to accomplish surpass 15cm in MCP.In order to realize big detection area, require microscler X ray image intensifier 20 that corresponding length is arranged, adopted method with multi-disc MCP butt joint to obtain needed length (also available several microscler X ray image intensifiers be together in series use) in case of necessity, for this reason.Abutment joint is should be skewed, to reduce abutment joint having a strong impact on testing result.The gradient of joint (or seam) can be selected in 30-60 degree scope, and comprehensive various factors is considered with 45 degree for best.Substitute conventional photocathode with commercial MCP, not only make simplified manufacturing process, and avoided the shortcoming that the normal appearance in manufacture process of CsI photocathode is inhomogeneous and be easy to damage again, quality and yield rate are all increased.
Employed fluoroscopic manufacturing process is a sprayed with fluorescent powder on commercial electro-conductive glass sheet in this utility model, this way-first sprayed with fluorescent powder on sheet glass than routine, vacuum evaporation one deck conductive aluminum film is compared thereon then, manufacturing process tubeization not only, and quality is good, the yield rate height satisfies the needs of this utility model X-ray machine fully.Fluoroscopic width should be identical with MCP with the selected of length.
The shell of the X ray image intensifier of this utility model ray machine is a glass tubing, and is easy to manufacture, and helps application of vacuum.Glass tubing is added with the square aluminum cover outward and is protected.Have a breach at the aluminum cover facing to fluorescent screen one side, on breach, stud with the lead glass plate, leak to prevent principal ray Vent.
The scanning device of this utility model ray machine is a driving device, and wherein the driving wheel of motor is connected with the screw rod guide rail; This screw rod guide rail is equipped with the image intensifier support, and image intensifier support and screw rod guide rail are contained in the camera bellows;
The testing result of this utility model X-ray machine high-resolution digital camera collection and digitized (also available DV or film photographic), also can import computer when needing testing result is done further processing, not only can improve the quality, also can obtain more useful information
The X ray of this utility model X-ray machine is to produce with the parts that little focus miniature X ray pipe and the small-sized power supply that matches are formed, and its volume is little, and is in light weight.For preventing the injury of ray to the people, around X-ray tube, adopted lead protecting cover, only have a rectangular breach in direction facing to image intensifier.The selected of gap width and length should be complementary with the effective length and the width of X ray image intensifier.The X ray that comes out from breach is again through with the plumbous collimating device collimation of doing, and further reduces scattering X and penetrates to the adverse effect of testing result quality with to people's injury.Because X ray is the strip of a narrower in width and through collimation, and operator are by having the controller of certain distance to operate with X-ray machine, thus its to leak ray very little, operator can operate under the condition without any safeguard procedures.
The maximum characteristics of this utility model X-ray machine are; Have under these high performance prerequisites of ultralow x-ray dose, high-space resolution, super large detection area and result of detection digitized, it is small and exquisite, in light weight to have volume again, be easy to carry, and cost is low comprehensively.
Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.
The described X-ray machine of Fig. 1 comprises: x ray generator 10, Yi Ma X ray image intensifiers 20, scanning device 30, a harvester 40 and a controller 50.The X ray image intensifier is contained on the image intensifier support of scanning device, and the image intensifier support of scanning device and screw rod guide rail are with the bottom in the projected square part that places camera bellows, and the motor of scanning device and driving wheel are contained in the outer bottom of projected square part of camera bellows.The digital camera of harvester is contained in the outside of the tapering part of camera bellows, and it is the fluorescent screen of X ray image intensifier in focus.Controller 50 electrically connects with x ray generator, scanning device, harvester, with the translation of high pressure, the X ray image intensifier of control X-ray tube start or stop, point-to-point speed and direction and digital camera shutter.X ray generator passes through the fixedly outer bottom of projected square part of camera bellows of two link rods, thereby makes Ge Ma of X-ray machine partly be unified into an integral body.
Described x ray generator 10 (referring to Fig. 2) is to be used for producing required X ray.It is to become high-frequency and high-voltage by the high frequency voltage that power supply 16 (Fig. 1) produces through changer 11, this high-frequency and high-voltage is again through high pressure doubler 15, make high pressure further improve also rectification and reach needed high direct voltage, be connected on the anode of little focus miniature X ray pipe 13.Power supply 16 is also given negative electrode (the being filament) power supply of X-ray tube 13 simultaneously.Around X-ray tube 13, be added with lead protecting cover 14, only face toward the X ray exit at lead protecting cover 14, have a strip breach corresponding with the length and width of X ray image intensifier 20, the X ray that this breach penetrates is again through being contained in the outside of lead protecting cover 14 breach, with the plumbous collimator of doing 12 collimations.
Described microscler X ray image intensifier 20 (Fig. 3) is to be used for seeing through the residue of object to be detected and faint X ray converts electronics to, and through amplifying, last impact fluorescence screen demonstrates bright detected image on screen.It is made up of photocathode 23 (substituting conventional CsI with MCP), MCP24 and fluorescent screen 26.。The two ends of MCP abutment joint should superfine heart stick with glue even, and it is fixed.Also can be at arbitrary end to the MCP upper/lower terminal that connects, with flexible, the material of good insulating is done in flakes (thickness is 0.1cm), and abutment joint is closely remained unchanged.Closely stack with MCP24 (bulk resistor of these two kinds of MCP should be identical, or be more or less the same in 10%) as the MCP23 of photocathode, clamp with upper bracket 25a and medium-height trestle 25b as the electron multiplication plate.Fluorescent screen is to use width identical with MCP and length, and thickness is that the fluorescent material that sprays through screening on the electro-conductive glass sheet of 0.2cm forms.This fluorescent screen is fixed on the lower carriage 25c with tabletting.The both sides of support 25a, 25b and 25c, each is tightened to assembly (MCP and fluoroscopic spacing as the electron multiplication plate are 0.2-0.3cm) with four ceramic leg with making its mutual insulating.It is that 4cm (wall thickness is 0.1cm), pipe bottom have in the long glass tubing 22 of 4 stems (be respectively fluorescent screen, MCP, getter and connect power supply and earthy) that this assembly is contained in external diameter; through application of vacuum and encapsulation, in square (4.5cm*4.5cm) aluminum protective cover 21 of packing at last.Protective cover has a rectangle breach facing to this face of fluorescent screen, and size is identical with fluorescent screen.Indentation, there at protective cover studs with the lead glass plate 27 (Fig. 3) that a thickness is 6mm.
Described scanning device 30 (Fig. 4) is to be used for driving X ray image intensifier 20, achieves translation (i.e. scanning).Motor 31 makes 33 rotations of screw rod guide rail by driving wheel 32, thereby drives 34 translations of image intensifier support, and X ray image intensifier 20 is contained in image intensifier support 34.Image intensifier support 34 and screw rod guide rail 33 are all adorned the interior bottom of projected square part of camera bellows.The lower end of image intensifier support 34 has a quarter butt to stretch out outside the camera bellows, links to each other with the lead protecting cover of ray generator by a link rod, and when the translation of X ray image intensifier, the lead protecting cover of the straight device in band Huaihe River is correspondingly rotation also, makes ray aim at the X ray image intensifier all the time.
Described harvester 40 (see figure 1)s are made up of camera bellows 41, high-resolution (more than the 500 everything elements) digital camera 42 and luggable computer 43.The image that X ray image intensifier 20 scanning obtains by digital camera 42 collections, digitized with form a complete image, is presented on the LCD screen.When needing, the result can be imported computer for further processing, make the picture quality raising and obtain more useful information, thereby improved diagnostic level.These data also can be networked, and realize that remote diagnosis, education and data are shared.
Described controller 50 be used for controlling the startup of X-ray machine scanning and stop, scanning speed and direction, the high pressure of X-ray tube 11 and the shutter of digital camera 41.The adjusting of X-ray tube 11 high pressure and its emission current all is located at the panel of power supply 16.
This utility model X-ray machine is work like this: object to be detected places between the projected square part of x ray generator and camera bellows.Start power supply, produce a branch of long narrow bar shaped X ray when X-ray tube adds high pressure, this ray is invested object to be detected.Penetrate the remaining X ray of object and inject X ray image intensifier 20, after conversion, amplification, be presented on the fluorescent screen, again by the digital camera collection.What gathered this moment only is the sub-fraction of object to be detected, mobile continuously X ray image intensifier 20, end to end from object to be detected, (this moment, X ray also synchronously moved), the image of each fraction is all by the digital camera collection, the image that forms the whole Ma detected material body characteristics of width of cloth performance at last is (because different objects or same object different-thickness are to the absorption difference of X ray, therefore the shaded-image that shows on fluorescent screen can be represented some feature of object), thus whole testing process finished.
Claims (7)
1, a kind of mobile X-ray unit is characterized in that, comprising:
One x ray generator around the little focus miniature X ray pipe of x ray generator, is provided with lead protecting cover, and this lead protecting cover has a long narrow strip gab in the X ray exit of X-ray tube, and the x-ray collimator of a plumbous system also is equipped with in the outside of this opening part; This X-ray tube electrically connects a power supply;
One X ray image intensifier, according to photocathode, electron multiplication plate and fluorescent screen order mutually insulated be arranged in parallel and be assembled in the glass tube with vacuum; Photocathode and electron multiplication plate are microchannel electron multiplication plate; Getter is housed in the glass tube with vacuum, and from glass tube with vacuum, draw the electron multiplication plate respectively, the power supply wiring and the ground wire of fluorescent screen and getter, all electrically connect power supply; Glass tube with vacuum places in the aluminum protective cover, and the fluoroscopic side of this aluminum protective cover in glass tube with vacuum is provided with a window, and this window place is provided with a lead glass plate;
The one scan device is a driving device, and wherein the driving wheel of motor is connected with the screw rod guide rail; The image intensifier support that the X ray image intensifier is housed is arranged on this screw rod guide rail; Image intensifier support and screw rod guide rail are contained in the camera bellows;
One harvester, photographing unit wherein is contained in the outside of camera bellows, the fluorescent screen in the X ray image intensifier in focus of this photographing unit;
X ray generator is fixed on the bottom of the projected square part outside of camera bellows by two link rods, thereby this X-ray machine various piece is joined together; Above-mentioned x ray generator, power supply, scanning device and harvester electrically connect a controller.
2, mobile X-ray unit according to claim 1 is characterized in that, the microchannel electron multiplication plate as photocathode and electron multiplication plate in the described X ray image intensifier is that multi-disc is connected.
3, mobile X-ray unit according to claim 2 is characterized in that, the junction of described microchannel electron multiplication plate is the skewed of 30-60 degree.
4, mobile X-ray unit according to claim 3 is characterized in that, the junction of described microchannel electron multiplication plate is the skewed of 45 degree.
5, mobile X-ray unit according to claim 1 is characterized in that, described fluorescent screen is a sprayed with fluorescent powder on the electro-conductive glass sheet.
6, mobile X-ray unit according to claim 1 is characterized in that, described photographing unit is digital camera or DV.
7, mobile X-ray unit according to claim 6 is characterized in that, described digital camera connects a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720173220XU CN201164473Y (en) | 2007-09-19 | 2007-09-19 | Portable X-ray equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720173220XU CN201164473Y (en) | 2007-09-19 | 2007-09-19 | Portable X-ray equipment |
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| CN201164473Y true CN201164473Y (en) | 2008-12-17 |
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| CNU200720173220XU Expired - Fee Related CN201164473Y (en) | 2007-09-19 | 2007-09-19 | Portable X-ray equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508312A (en) * | 2011-09-30 | 2012-06-20 | 云南电力试验研究院(集团)有限公司 | Insulated bandage-type fastening device for X-ray imaging plate for power use |
| CN102579062A (en) * | 2011-12-22 | 2012-07-18 | 重庆大学 | Portable X-ray transmissometer |
| CN108201445A (en) * | 2017-12-13 | 2018-06-26 | 黄爱苓 | A kind of quick film making sheet outlet device of dept. of radiology |
| CN112858350A (en) * | 2019-11-12 | 2021-05-28 | 山西戴德测控技术有限公司 | Portable microfocus X-ray aramid fiber conveyer belt detection device |
| CN115364204A (en) * | 2021-05-17 | 2022-11-22 | 厦门鹭佳生物科技有限公司 | Comprehensive mobilization of individualized anti-cancer active immunity and monitoring of anti-cancer immunity |
-
2007
- 2007-09-19 CN CNU200720173220XU patent/CN201164473Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508312A (en) * | 2011-09-30 | 2012-06-20 | 云南电力试验研究院(集团)有限公司 | Insulated bandage-type fastening device for X-ray imaging plate for power use |
| CN102579062A (en) * | 2011-12-22 | 2012-07-18 | 重庆大学 | Portable X-ray transmissometer |
| CN108201445A (en) * | 2017-12-13 | 2018-06-26 | 黄爱苓 | A kind of quick film making sheet outlet device of dept. of radiology |
| CN108201445B (en) * | 2017-12-13 | 2021-05-04 | 潘林华 | Radiology department is with quick film shooting play piece device |
| CN112858350A (en) * | 2019-11-12 | 2021-05-28 | 山西戴德测控技术有限公司 | Portable microfocus X-ray aramid fiber conveyer belt detection device |
| CN115364204A (en) * | 2021-05-17 | 2022-11-22 | 厦门鹭佳生物科技有限公司 | Comprehensive mobilization of individualized anti-cancer active immunity and monitoring of anti-cancer immunity |
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