CN103876757B - Medical science x-ray image documentation equipment, grid telecontrol equipment and exposal control method - Google Patents
Medical science x-ray image documentation equipment, grid telecontrol equipment and exposal control method Download PDFInfo
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- CN103876757B CN103876757B CN201210553678.3A CN201210553678A CN103876757B CN 103876757 B CN103876757 B CN 103876757B CN 201210553678 A CN201210553678 A CN 201210553678A CN 103876757 B CN103876757 B CN 103876757B
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Abstract
The invention discloses a kind of grid telecontrol equipment, comprising: a tumbler, a motor, at least one anti-dazzling screen and a photoelectric sensor; Wherein, motor drives tumbler to rotatablely move; When rotatablely moving, tumbler drive grid to move back and forth along intended trajectory; In the time that anti-dazzling screen passes through the photosignal district of photoelectric sensor, grid is positioned at arbitrary end of intended trajectory, and anti-dazzling screen covers the photosignal of photoelectric sensor, and photoelectric sensor, in off-state, cuts off exposure control loop; In the time that anti-dazzling screen leaves the photosignal district of photoelectric sensor, grid leaves arbitrary end of intended trajectory and to other end motion, the photosignal of photoelectric sensor is not blocked and in conducting state, and control loop exposes described in conducting. Accordingly, the invention also discloses medical science x-ray image documentation equipment and control method. The present invention can improve the control to grid motion and x-ray exposure.
Description
Technical field
The present invention relates to Medical Imaging Technology field, particularly a kind of grid telecontrol equipment, one comprise this kind of filterThe medical science x-ray image documentation equipment of wiregrating telecontrol equipment and for the exposure controlling party of x-ray device in medical science x-ray image documentation equipmentMethod, corresponding, also relate to a kind of machine-readable storage medium and a kind of computer program.
Background technology
Medical image refers to for medical treatment or medical research, to human body or human body part, in obtaining in non-intruding modeThe technology of tissue image of portion and processing procedure. In Medical Imaging Technology field, use x-ray (being also X-ray or X ray) imaging techniqueEquipment be called as medical science x-ray image documentation equipment. At present, more common medical science x-ray image documentation equipment comprises: angiogram(Angiography) equipment, angiocardiography (Cardiacangiography) equipment, CT Scan (CT,ComputerizedTomography) equipment, dental X-ray film sheet (Dentalradiography) equipment, fluoroscopy mirror(Fluoroscopy), breast photography (Mammography) equipment etc.
Fig. 1 is the basic composition structure chart of existing medical science x-ray image documentation equipment. As shown in Figure 1, medical science x-ray image documentation equipmentMainly comprise: an x-ray device 11, an imaging device 12 and operation and a display device 13. Wherein, x-ray device 11Mainly comprise: a controller 111, a high pressure generator 112, a bulb 113 and a beam-defining clipper (collimator) 114; ImagingDevice 12 mainly comprises: an X-ray detector 121 and image processing parts 122; Operation and display device 13 mainly comprise:One display device 131 and an operating desk 132. In the time that medical science x-ray image documentation equipment is worked, patient 15 is positioned at x-ray device 11 HesBetween imaging device 12; Doctor is set exposure parameter and is sent operational order by operating desk 132; Controller 111 receive fromThe exposure parameter of operating desk 132 and operational order, set the exposure parameter of high pressure generator 112, to high pressure generator112 and beam-defining clipper 114 send instruction, make bulb 113 within the time for exposure, launch the x-ray 14 of some strength; Beam-defining clipper114 is adjacent with bulb 113, so that the x-ray 14 that bulb 113 sends is radiated patient's 15 by the limit beam hole of beam-defining clipper 114Appointed part; X-ray 14 sees through patient 15 appointed part and arrives X-ray detector 121, and X-ray detector 121 will senseX ray intensity-conversion become the signal of telecommunication and export to image processing parts 122; Image processing parts 122 are to the telecommunications receivingNumber do further processing and generate medical image (can be single frames pre-exposure image or perspective video flowing); Display device 131 showsThe medical image that image processing parts 122 generate, doctor can see medical image by display device 131, can be furtherBy operating desk 132, the medical image of current demonstration is carried out to various processing, also can send operational order by operating desk 132,To adjust the exposure parameter of high pressure generator 112 and/or the state of adjustment beam-defining clipper 114, and then re-start shooting.
The surface that receives x-ray 14 on X-ray detector 121 is provided with a grid, in the exposure of x-ray device 11Grid is kept in motion during this time, and it is for filtering the x-ray of scattering, to improve image quality. For movable grid,In exposure process, grid will move to the other end from one end in some way each time. How can be to medical science x-ray image documentation equipmentIn the motion of grid and the exposure of x-ray device effectively control, just become one, prior art field weightThe research and development problem of wanting.
In existing medical science x-ray image documentation equipment, adopt the circuit that comprises multiple sensors of more complicated to locate filterWith seasonal grid setting in motion, then transport according to grid in the time that x-ray device 11 starts to expose the position of wiregrating motionWhether the positioning result control x-ray device 11 of moving position finishes exposure. The problem of this technical scheme is, circuit is establishedMeter is complicated, and cost is higher, and what also easily occur that, signal delay inaccurate by location etc. causes can not carry out accurately controlling to exposureProblem. Such as, in the time that grid does not start to swing or finishes to swing, the exposure of x-ray device 11 does not also stop, or works asGrid has swung for a long time, and x-ray device 11 does not also start exposure.
Summary of the invention
In view of this, the embodiment of the present invention has proposed a kind of medical science x-ray image documentation equipment, grid telecontrol equipment and correspondingExposal control method, can improve in medical science x-ray image documentation equipment the control for x-ray exposure.
The embodiment of the present invention has proposed a kind of grid telecontrol equipment, comprising: a tumbler, a motor, at least oneAnti-dazzling screen and a photoelectric sensor; Wherein, described at least one anti-dazzling screen is fixed on the swivel head of described tumbler, described inPhotoelectric sensor is arranged near of described swivel head and can connects the exposure control loop in a medical science x-ray image documentation equipment; InstituteStating motor rotatablely moves at tumbler described in the rear drive that switches on power; Described tumbler can drive in the time being rotatedGrid in described medical science x-ray image documentation equipment moves back and forth along intended trajectory; When in described at least one anti-dazzling screenWhen the photosignal district of described photoelectric sensor is passed through in any rotation with described tumbler, described tumbler makes instituteState arbitrary end that grid is positioned at described intended trajectory, this anti-dazzling screen covers the photosignal of described photoelectric sensor, described lightElectric transducer is in off-state, and then cuts off described exposure control loop, and exposure is not allowed to; When described at least oneWhen any in anti-dazzling screen left the photosignal district of described photoelectric sensor with the rotation of described tumbler, described in turnMoving device makes described grid leave arbitrary end of described intended trajectory and moves to the other end, the light of described photoelectric sensorThe signal of telecommunication is not blocked, and described photoelectric sensor is in conducting state, and then the control loop that exposes described in conducting, makes the quilt that exposesAllow. This kind of scheme adopted photoelectric sensor and this contactless mode of anti-dazzling screen to control exposure, long service life,Response promptly and accurately, realizes cost low.
In an embodiment of the present invention, described grid telecontrol equipment comprises single anti-dazzling screen, described in this anti-dazzling screen is positioned atOptional position on the edge of the end face of swivel head, described tumbler rotating 360 degrees can make described grid from described appointment railOne end of mark moves to the other end.
In another embodiment of the present invention, described grid telecontrol equipment comprises multiple anti-dazzling screens, described multiple anti-dazzling screensBe evenly distributed on the edge of end face of described swivel head; Whenever described tumbler rotation makes in any two adjacent anti-dazzling screensOne when leaving described photosignal district and entering described photosignal district to another, described tumbler will make described filterWiregrating moves to the other end from one end of described intended trajectory.
Concrete, described grid telecontrol equipment comprises two anti-dazzling screens, described in described two anti-dazzling screens are placed in relativelyOn the edge of the end face of swivel head; When the first anti-dazzling screen in described two anti-dazzling screens is with the rotation process institute of described tumblerWhile stating the photosignal district of photoelectric sensor, described tumbler makes described grid be positioned at first of described intended trajectoryEnd, this first anti-dazzling screen covers the photosignal of described photoelectric sensor, and described photoelectric sensor is in off-state, and then cutsDisconnected described exposure control loop, is not allowed to exposure; When this first anti-dazzling screen leaves with the rotation of described tumblerWhen in the photosignal district of described photoelectric sensor, described tumbler make described grid leave described intended trajectory described inFirst end and to the second end motion, the photosignal of described photoelectric sensor is not blocked, described photoelectric sensor is in conductingState, and then the control loop that exposes described in conducting, be allowed to exposure; When the second anti-dazzling screen in described two anti-dazzling screens withWhen the photosignal district of described photoelectric sensor is passed through in the rotation of described tumbler, described tumbler makes described gridDescribed the second end that is positioned at described intended trajectory, this second anti-dazzling screen covers the photosignal of described photoelectric sensor, described lightElectric transducer is in off-state, and then cuts off described exposure control loop, and exposure is not allowed to; When this second anti-dazzling screenWhile leaving the photosignal district of described photoelectric sensor with the rotation of described tumbler, described tumbler makes described filterWiregrating leaves described second end of described intended trajectory and moves to described first end, and the photosignal of described photoelectric sensor is notBe blocked, described photoelectric sensor is in conducting state, and then the control loop that exposes described in conducting, and exposure is allowed to.
The embodiment of the present invention has also proposed a kind of exposal control method of medical science x-ray image documentation equipment, and the method is applied toThe grid telecontrol equipment of stating, this exposal control method comprises: when any in described at least one anti-dazzling screen turns with describedWhile moving the photosignal district of the described photoelectric sensor of rotation process of device, described tumbler makes described grid be positioned at instituteArbitrary end of stating intended trajectory, this anti-dazzling screen covers the photosignal of described photoelectric sensor, and described photoelectric sensor is in disconnectedOpen state, and then cut off described exposure control loop, exposure is not allowed to; Arbitrary when in described at least one anti-dazzling screenWhen the photosignal district of described photoelectric sensor is left in the individual rotation with described tumbler, described in described tumbler makesGrid leaves arbitrary end of described intended trajectory and moves to the other end, and the photosignal of described photoelectric sensor is not hiddenGear, described photoelectric sensor is in conducting state, and then the control loop that exposes described in conducting, and exposure is allowed to. This kind of sideCase has adopted this contactless mode of photoelectric sensor to control exposure, long service life, and response promptly and accurately, is embodied asThis is low.
In an embodiment of the present invention, under original state, described grid is positioned at arbitrary end of described intended trajectory, instituteAny that state at least one anti-dazzling screen is positioned at described photosignal district, and described photosignal is blocked, make exposure not byAllow; Carry out after work when described grid telecontrol equipment energising, described motor drives described tumbler to rotatablely move, described inThe described grid that rotarily drives of tumbler moves to the other end from one end of described intended trajectory, and makes to be positioned at described photoelectricityThe anti-dazzling screen of signaling zone leaves described photosignal district, and described photosignal is not blocked, and exposure is allowed to.
The embodiment of the present invention has also proposed a kind of medical science x-ray image documentation equipment, comprising: an x-ray device, an imaging deviceWith an operation and display device, wherein, described x-ray device at least comprises an exposure control loop, and described imaging device extremelyComprise less: a grid and an above-mentioned grid telecontrol equipment; Described motor is at tumbler described in the rear drive that switches on powerRotatablely move; Described tumbler can drive described grid to move back and forth along intended trajectory in the time being rotated;When any rotation with described tumbler in described at least one anti-dazzling screen is through the optical telecommunications of described photoelectric sensor, described tumbler makes described grid be positioned at arbitrary end of described intended trajectory when in number the district, and this anti-dazzling screen covers described lightThe photosignal of electric transducer, described photoelectric sensor is in off-state and then cut off described exposure control loop, makes to expose to the sunLight is not allowed to; When any in described at least one anti-dazzling screen left described photoelectric transfer with the rotation of described tumblerWhen in the photosignal district of sensor, described tumbler make described grid leave described intended trajectory arbitrary end and to anotherEnd motion, the photosignal of described photoelectric sensor is not blocked, and described photoelectric sensor is in conducting state and then conducting instituteState exposure control loop, exposure is allowed to. This kind of scheme adopted this contactless mode of photoelectric sensor to controlSystem exposure, long service life, response promptly and accurately, realizes cost low.
In an embodiment of the present invention, under original state, described grid is positioned at arbitrary end of described intended trajectory, instituteState the described photosignal district that any at least one anti-dazzling screen is positioned at described photoelectric sensor, described in this anti-dazzling screen coversThe photosignal of photoelectric sensor, described photoelectric sensor is in off-state and then cut off described exposure control loop, makesExposure is not allowed to; Carry out after work when described grid telecontrol equipment energising, described motor drives described tumbler rotationMotion, the described grid that rotarily drives of described tumbler moves to the other end from one end of described intended trajectory, and makes positionLeave described photosignal district in the anti-dazzling screen in described photosignal district, the photosignal of described photoelectric sensor is not blocked,Described photoelectric sensor, in the control loop that exposes described in conducting state and then conducting, is allowed to exposure.
Accordingly, the embodiment of the present invention has also proposed a kind of machine-readable storage medium, and its storage is used for making a machineCarry out the instruction of aforementioned control method.
Accordingly, the embodiment of the present invention has also proposed a kind of computer program, when described computer program runs on a machineIn device time, make a described machine carry out aforesaid control method.
From such scheme, can find out, the present invention adopts contactless photoelectric sensor and anti-dazzling screen, and equipment usesLife-span is long, and response in time, realizes circuit simple, and has utilized grid telecontrol equipment to drive grid laws of motion, energyEnough grid motion and x-ray exposure are controlled, ensure grid reach that end points place forbids exposing and grid at end pointsBetween allow exposure while moving.
Brief description of the drawings
Fig. 1 is the basic composition structure chart of existing medical science x-ray image documentation equipment;
Fig. 2 A is the front view of a kind of grid telecontrol equipment of proposing of present inventor;
Fig. 2 B is the top view of grid telecontrol equipment shown in Fig. 2 A;
Fig. 2 C is the left view of grid telecontrol equipment shown in Fig. 2 A;
Fig. 2 D is the circuit diagram of limit switch in grid telecontrol equipment shown in Fig. 2 A;
Fig. 3 A is the front view according to the grid telecontrol equipment of one embodiment of the invention;
Fig. 3 B is the top view of grid telecontrol equipment shown in Fig. 3 A;
Fig. 3 C is the left view of grid telecontrol equipment shown in Fig. 3 A;
Fig. 3 D is the circuit diagram of photoelectric sensor in grid telecontrol equipment shown in Fig. 3 A;
Fig. 4 A is the facing of part that grid telecontrol equipment shown in Fig. 3 A～3C is installed in medical science x-ray image documentation equipmentFigure;
Fig. 4 B is the top view of part shown in Fig. 4 A;
Fig. 5 shows the applied breast photographic equipment of grid telecontrol equipment of the present invention;
Fig. 6 is the control method flow chart according to the embodiment of the present invention.
Wherein, Reference numeral is as follows:
11-X line generating means 12-imaging device 13-operation and display device 14-X line 15-patient 111-Controller 112-high pressure generator 113-bulb 114-beam-defining clipper 121-X ray detector 122-image processing portionPart 131-display device 132-operating desk
A 201-tumbler 202-compressing 203-switch compressing handle 204-limit switch 205-represents to rotateThe arrow 206-compressing cephalic groove groove 207-exposure control circuit 211-motor of direction
301-tumbler 302-swivel head 303-anti-dazzling screen 304-photoelectric sensor 305-represents rotation sideTo arrow 306-exposure control circuit 311-motor
400-X line 401-grid 402-X line detector 403-framework 404-tumbler 405-rotation406-photoelectric sensor 407-connecting rod 408-motor 409-represents the arrow of the grid direction of motion
The position at 501-grid telecontrol equipment, grid and x-ray detector place
601-is in the time that anti-dazzling screen passes through the photosignal district of photoelectric sensor, and grid is positioned at arbitrary end of intended trajectory,Photosignal is blocked, and photoelectric sensor is in off-state, and exposure is not allowed to 602-and leaves photoelectric sensing when anti-dazzling screen, grid leaves arbitrary end of intended trajectory and to other end motion, photosignal is not blocked, light when in the photosignal district of deviceElectric transducer is in conducting state, and exposure is allowed to
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, further detailed to the present invention by the following examplesDescribe in detail bright.
Present inventor has proposed a kind of grid telecontrol equipment, and it utilizes limit in controlling grid motionBit switch is controlled the exposure of x-ray device. As shown in Figure 2 A, this grid telecontrol equipment mainly comprises: one turnsMoving device 201, a compressing 202, switch compressing handle 203 and a limit switch (S1) 204. Tumbler 201 is column, itsConnecting a grid, along with the rotation (rotation direction as shown in Fig. 2 A arrow 205) of tumbler 201, grid canMove to the other end along projected path from one end. Concrete, this tumbler 201 is driven by motor 211, when grid motionWhen device energising is started working, motor 211 drives tumbler 201 to rotate, and tumbler 201 will rotatablely move and convert linearity toMotion, makes grid along straight reciprocating motion (swinging) by connecting rod. The swivel head of this tumbler 201 connects compressing head202, compressing 202 is oppressed handle 203 by switch and is connected with limit switch 204. For clearer this grid fortune that presentsThe structure of moving device, Fig. 2 B shows the top view of this grid telecontrol equipment, and Fig. 2 C shows this grid telecontrol equipmentLeft view. As shown in Figure 2 C, the surface contacting with switch compressing handle 203 in compressing 202 also has compressing cephalic groove groove 206. WithShown in the structure drawing of device of lower combination Fig. 2 A～2C and Fig. 2 D, the circuit diagram of limit switch 204 is to this grid telecontrol equipmentControlling the flow process of exposure is described.
In original state, switch compressing handle 203 is among compressing cephalic groove groove 206, and now, limit switch 204 makes to expose to the sunThe exposure control loop of light control circuit 207 is in off-state, and therefore exposure process does not also start. Here, electricity is controlled in exposureRoad 207 is parts in the controller 111 of x-ray device 11.
After grid telecontrol equipment is switched on and started working, tumbler 201 starts to turn under the drive of motor 211Moving, and then drive grid to start to swing. Compressing 202 is fixed on the swivel head of tumbler 201, at tumbler 201Also synchronous rotary of rotation time compressing 202, makes switch compressing handle 203 depart from compressing cephalic groove grooves 206, and then limit switch204 are depressed and are in on-state by switch compressing handle 203, thereby connect the exposure control loop of exposure control circuit 207,Allow exposure.
While rotating to semicircle (i.e. 180 degree) when compressing 202 rotation along with tumbler 201, grid is transported from itOne end of moving track moves to the other end, and switch compressing handle 203 is got back among compressing cephalic groove groove 206, limit switch 204 no longer bySwitch compressing handle 203 is depressed, and then is in off-state, the exposure control loop of exposure control circuit 207 is cut off,Stop exposure.
By above operation principle, in the time that tumbler 201 rotates and drive grid to swing, can control exposure simultaneouslyBeginning and stop, and single exposure just and a movement travel of grid (move to the mistake of the other end from one endJourney) match, so go round and begin again, along with the rotation of tumbler 201, grid can swing back and forth and allow accordingly simultaneouslyExpose and stop exposure, until whole exposure process finishes, grid telecontrol equipment deenergization stops operating and makes grid alsoStop swinging.
But the realization of the scheme of above-mentioned employing limit switch is oppressed connecing between handle 203 according to compressing 202 and switchTouch, can be restricted service life. For this reason, present inventor has proposed again another kind of grid telecontrol equipment, this gridTelecontrol equipment has adopted a photoelectric sensor to realize exposure and has controlled.
Front view, top view and left view as shown in Fig. 3 A～3C, this grid telecontrol equipment mainly comprises: one rotatesDevice 301, two anti-dazzling screen 303 and photoelectric sensors 304. Tumbler 301 is column, and it is connecting grid, turnsThe rotation (rotation direction as Fig. 3 A～3C arrow 305 as shown in) of moving device 301 under motor 311 drives, grid can beUnder the drive of tumbler 301, move to the other end along projected path from one end. The swivel head 302 of this tumbler 301Edge is fixed wtih two anti-dazzling screens 303, and along with the rotation of tumbler 301, anti-dazzling screen 303 also moves along circular trace thereupon,And can be through the photosignal district of photoelectric sensor 304, and as can be seen from the figure these two anti-dazzling screens 303 with swivel headCentered by the center of circle of 302 end faces, symmetry is put, and the line of the two just in time passes the center of circle of the end face of swivel head 302, that is to say,The central angle of the circular arc taking the two as end points is 180 degree.
Below in conjunction with the circuit diagram of photoelectric sensor U1 (a) 304 shown in the structure drawing of device of Fig. 3 A～3C and Fig. 3 DFlow process to this grid telecontrol equipment control exposure is described. Wherein, Fig. 3 D shows photoelectric sensor U1's (a) 304Circuit diagram. For example, can adopt the photoelectric sensor that flourishing age (Vishay) company model is TCST1103 (http:// www.vishay.com/optical-sensors/list/product-83764/)。
In original state, one of them anti-dazzling screen 303 is in the photosignal district of photoelectric sensor 304, now, and shadingSheet 303 has covered the photosignal that photoelectric sensor (U1) 304 sends, and makes the exposure control loop of exposure control circuit 306Be in off-state, therefore exposure process does not also start. Here, exposure control circuit 306 is the controller of x-ray device 11Parts in 111, the photosignal that photoelectric sensor 304 interior light emitting diodes (D1) produce is covered, switching device(N1) be off-state, and then cut off exposure control loop, exposure is not allowed to.
After grid telecontrol equipment is switched on and started working, motor 311 drives tumbler 301 to start rotation, and thenTumbler 301 can drive grid to start to swing. When tumbler 301 rotates, anti-dazzling screen 303 is also with swivel head302 synchronous rotaries, make the former anti-dazzling screen 303 that covers photosignal leave the photosignal district of photoelectric sensor 304, owing to sending outThe photosignal that optical diode (D1) produces is not covered, and switching device (N1) is switched to conducting state by off-state, and thenConnect exposure control circuit 306 control loop that exposes, allow exposure.
When this anti-dazzling screen 303 rotates to semicircle (i.e. 180 degree) along with the rotation of tumbler 301, grid is from itOne end of movement locus moves to the other end, another anti-dazzling screen 303 also the corresponding photosignal district of getting back to photoelectric sensor 304 itIn, the photosignal that light emitting diode (D1) produces is covered again, and switching device (N1) is switched to off-state by conducting state,The exposure control loop of exposure control circuit 306 is cut off, stops exposure.
By above operation principle, in the time that tumbler 301 rotates and drive grid to swing, can control exposure simultaneouslyBeginning and stop, and single exposure just and a movement travel of grid match, so go round and begin again, along with turningThe rotation of moving device 301, grid can swing back and forth and allows accordingly exposure simultaneously and stop exposure, exposes until wholeJourney finishes, and grid telecontrol equipment deenergization stops operating grid is also stopped swinging.
Adopt the above-mentioned grid telecontrol equipment that utilizes single photoelectric sensor, in the time exposing control, response speed moreSoon and more accurate, owing to being contactless control program, longer service life, the realization of this kind of scheme is very simple, becomeThis is also very low.
Fig. 4 A and 4B show in Fig. 3 A～3C the residing position of grid telecontrol equipment and with medical science x-ray imaging deviceIn the annexation of other parts. As shown in Fig. 4 A and 4B, grid 401 is arranged on x-ray detector 402 and receives the table of x-ray 400On face, the scattered rays in the x-ray 400 after filtration filtration of wiregrating 401 arrives x-ray detector 402 afterwards. Grid 401 and x-ray are visitedOne end of surveying device 402 is arranged on the framework 403 of medical science x-ray image documentation equipment, and grid motion is also installed on this framework 403Device, this grid telecontrol equipment can drive grid 401 to swing along the direction shown in arrow 409. Concrete, filter lineGrid telecontrol equipment comprises: a tumbler 404, is provided with the swivel head 405 of two anti-dazzling screens, a photoelectric sensor 406With a motor 408, its specific works principle repeats no more here. Tumbler 404 in grid telecontrol equipment is by connectingBar 407 connects grid 401, and then can drive grid 401 to carry out the reciprocating motion of straight line. Filter line proposed by the inventionGrid telecontrol equipment can be applied among the medical science x-ray image documentation equipment of grid of various employing activities. Fig. 5 shows the present inventionThe adaptable breast photographic equipment of grid telecontrol equipment (being also breast X-ray machine, mammary gland machine an etc.) example of embodiment, figureThe part that in 5, dashed circle 501 marks is exactly grid telecontrol equipment of the present invention, grid and x-ray detector placePosition.
In above-mentioned each embodiment, two anti-dazzling screens of relatively putting are installed on swivel head, according to the concrete feelings that realizeCondition, can with one or more than the anti-dazzling screen of two, the embodiment of the present invention not be done tool for the quantity of anti-dazzling screen on swivel headBody limits. In the time that arbitrary anti-dazzling screen passes through the photosignal district of photoelectric sensor with the rotation of tumbler, tumbler makesGrid is positioned at arbitrary end of intended trajectory, and this anti-dazzling screen covers the photosignal of photoelectric sensor, and photoelectric sensor is in disconnectedOpen state and then cut off exposure control loop, exposure is not allowed to; When arbitrary anti-dazzling screen with the rotation of tumbler fromWhile opening the light the photosignal district of electric transducer, tumbler make described grid leave intended trajectory arbitrary end and to anotherEnd motion, the photosignal of photoelectric sensor is not blocked, and photoelectric sensor is controlled back in conducting state and then conducting exposureRoad, is allowed to exposure.
In an embodiment of the present invention, grid telecontrol equipment comprises single anti-dazzling screen, and this anti-dazzling screen can be positioned at swivel headThe edge of end face on optional position, in this embodiment, tumbler rotate a circle (i.e. 360 degree) can make grid from specifying railOne end of mark moves to the other end.
In another embodiment of the present invention, grid telecontrol equipment comprises multiple anti-dazzling screens, and multiple anti-dazzling screens are uniformly distributedOn the edge of the end face of swivel head; Whenever tumbler rotates through the center of circle taking any two adjacent anti-dazzling screens as the circular arc of end pointsAngle (that is, whenever described tumbler rotation makes one in any two adjacent anti-dazzling screens to leave described photosignal district extremelyWhen another enters described photosignal district), tumbler will make grid move to the other end from one end of intended trajectory.Such as: grid telecontrol equipment can comprise three anti-dazzling screens, the central angle taking adjacent two anti-dazzling screens as the circular arc of end points as120 degree, whenever tumbler rotates through 120 degree, tumbler will make grid move to another from one end of intended trajectoryEnd; Similarly, grid telecontrol equipment can also comprise four anti-dazzling screens, the circle taking adjacent two anti-dazzling screens as the circular arc of end pointsHeart angle is 90 degree, and whenever tumbler rotates through 90 degree, tumbler will make grid move to from one end of intended trajectoryThe other end.
Based on above embodiment, the invention allows for a kind of exposal control method of medical science x-ray image documentation equipment, the methodBe applied to above-mentioned grid telecontrol equipment, as shown in Figure 6, this exposal control method comprises the following steps:
Step 601: in the time that arbitrary anti-dazzling screen passes through the photosignal district of photoelectric sensor with the rotation of tumbler, rotateDevice makes grid be positioned at arbitrary end of intended trajectory, and this anti-dazzling screen covers the photosignal of photoelectric sensor, photoelectric sensingDevice is in off-state and then cut off exposure control loop, and exposure is not allowed to.
Step 602: when described anti-dazzling screen leaves the photosignal district of photoelectric sensor with the rotation of described tumblerTime, tumbler makes grid leave arbitrary end of intended trajectory and moves to the other end, the photosignal of photoelectric sensorBe not blocked, photoelectric sensor, in the control loop that exposes described in conducting state and then conducting, is allowed to exposure.
Concrete, under original state, grid is positioned at arbitrary end of intended trajectory, has an anti-dazzling screen and is positioned at photoelectricitySignaling zone, now, photosignal is blocked, and exposure is not allowed to. In the time that work is carried out in the energising of grid telecontrol equipment, electricityMachine drives tumbler to rotatablely move, and the grid that rotarily drives of tumbler moves to the other end from one end of intended trajectory,And make the anti-dazzling screen that is positioned at photosignal district leave photosignal district, now, photosignal is not blocked, and exposure is permittedPermitted.
The specific implementation of above-mentioned each step all has detailed description in device embodiment, repeats no more here.
Based on above embodiment, the invention allows for a kind of medical science x-ray image documentation equipment, it comprises: an x-ray fillsPut, an imaging device and operation and a display device, wherein, x-ray device at least comprises an exposure control loop, imaging dressPut at least and comprise: a grid and a grid telecontrol equipment according to the embodiment of the present invention, this grid telecontrol equipment comprises:One tumbler, a motor, at least one anti-dazzling screen and a photoelectric sensor; The concrete structure of this grid telecontrol equipment and workDo to have detailed description before principle, repeat no more here.
The present invention also provides a kind of machine-readable storage medium, and storage is used for making a machine to carry out as described hereinThe instruction of exposal control method. Particularly, can provide system or the device of being furnished with storage medium, on this storage medium, depositStoring up the software program code of realizing the function of arbitrary embodiment in above-described embodiment, and making the computer of this system or device(or CPU or MPU or MCU) reads and carries out the program code being stored in storage medium.
In this case, the program code reading from storage medium itself can be realized any one reality above-described embodimentExecute routine function, therefore program code and program code stored storage medium have formed a part of the present invention.
For the storage medium embodiment that program code is provided comprise floppy disk, hard disk, magneto-optic disk, CD (as CD-ROM,CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), tape, Nonvolatile memory card and ROM. Selectively,Can be by communication network download program code from server computer.
In addition, be noted that the program code that not only can read by object computer, and can pass throughInstruction based on program code makes operating system of calculating hands-operation etc. complete practical operation partly or completely, therebyRealize the function of any one embodiment in above-described embodiment.
In addition, be understandable that, the program code of being read write to the expansion board of inserting in computer by storage mediumIn in set memory or write in the memory arranging in the expanding element being connected with computer, subsequently based on journeyThe instruction of order code makes to be arranged on the CPU on expansion board or expanding element etc. and comes operating part and all practical operations, therebyRealize the function of arbitrary embodiment in above-described embodiment.
The invention discloses a kind of grid telecontrol equipment, comprising: a tumbler, a motor, at least one anti-dazzling screenWith a photoelectric sensor; Wherein, motor drives tumbler to rotatablely move; When rotatablely moving, tumbler drive grid along referring toFixed track moves back and forth; When anti-dazzling screen is during through the photosignal district of photoelectric sensor, grid is positioned at intended trajectoryArbitrary end, anti-dazzling screen covers the photosignal of photoelectric sensor, and photoelectric sensor, in off-state, cuts off exposure and controls backRoad; In the time that anti-dazzling screen leaves the photosignal district of photoelectric sensor, grid leave intended trajectory arbitrary end and to the other endMotion, the photosignal of photoelectric sensor is not blocked and in conducting state, and control loop exposes described in conducting. Accordingly,The invention also discloses medical science x-ray image documentation equipment and control method. The present invention can improve the control to grid motion and x-ray exposureSystem.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all in essence of the present inventionWithin god and principle, any amendment of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (8)
1. a grid telecontrol equipment, comprising: a tumbler (301,404), a motor (311,408), at least one screeningMating plate (303) and a photoelectric sensor (304,406); Wherein, described at least one anti-dazzling screen (303) is fixed on described rotation dressThe swivel head (302,405) of putting (301,404) is upper, described photoelectric sensor (304,406) be arranged on described swivel head (302,405) near also connects the exposure control loop in a medical science x-ray image documentation equipment;
Described motor (311,408) rotatablely moves at tumbler described in the rear drive that switches on power (304,404);
Described tumbler (301,404) drives the grid in described medical science x-ray image documentation equipment in the time being rotated(401) move back and forth along intended trajectory;
Described in any process of the rotation with described tumbler (301,404) in described at least one anti-dazzling screen (303), described tumbler (301,404) makes described grid (401) position when in the photosignal district of photoelectric sensor (304,406)In arbitrary end of described intended trajectory, this anti-dazzling screen (303) covers the photosignal of described photoelectric sensor (304,406), instituteState photoelectric sensor (304,406) in off-state;
When any in described at least one anti-dazzling screen (303) left institute with the rotation of described tumbler (301,404)While stating the photosignal district of photoelectric sensor (304,406), described tumbler (301,404) makes described grid (401)Leave arbitrary end of described intended trajectory and to other end motion, the photosignal of described photoelectric sensor (304,406) not byBlock, described photoelectric sensor (304,406) is in conducting state.
2. grid telecontrol equipment according to claim 1, wherein, described grid telecontrol equipment comprises single anti-dazzling screen(303), this anti-dazzling screen (303) is positioned at optional position on the edge of end face of described swivel head (302,405), described tumbler(301,404) rotating 360 degrees can make described grid (401) move to the other end from one end of described intended trajectory.
3. grid telecontrol equipment according to claim 1, wherein, described grid telecontrol equipment comprises multiple anti-dazzling screens(303), described multiple anti-dazzling screen (303) is evenly distributed on the edge of end face of described swivel head (302,405); Whenever describedTumbler (301,404) rotation makes in any two adjacent anti-dazzling screens (303) leave described photosignal district to anotherOne while entering described photosignal district, described tumbler (301,404) will make described grid (401) from described appointmentOne end of track moves to the other end.
4. grid telecontrol equipment according to claim 3, wherein, described grid telecontrol equipment comprises two anti-dazzling screens(303), described two anti-dazzling screens (303) are placed on the edge of end face of described swivel head (302,405) relatively;
When the first anti-dazzling screen (303) in described two anti-dazzling screens (303) is with the rotation process of described tumbler (301,404), described tumbler (301,404) makes described grid when in the photosignal district of described photoelectric sensor (304,406)(401) be positioned at the first end of described intended trajectory, this first anti-dazzling screen (303) covers described photoelectric sensor (304,406)Photosignal, described photoelectric sensor (304,406) is in off-state;
When this first anti-dazzling screen (303) with the rotation of described tumbler (301,404) leave described photoelectric sensor (304,406) when photosignal district, described tumbler (301,404) makes described grid (401) leave described intended trajectoryDescribed first end and to the second end motion, the photosignal of described photoelectric sensor (304,406) is not blocked, described photoelectric transferSensor (304,406) is in conducting state;
When the second anti-dazzling screen (303) in described two anti-dazzling screens (303) is with the rotation process of described tumbler (301,404), described tumbler (301,404) makes described grid when in the photosignal district of described photoelectric sensor (304,406)(401) be positioned at described second end of described intended trajectory, this second anti-dazzling screen (303) cover described photoelectric sensor (304,406) photosignal, described photoelectric sensor (304,406) is in off-state;
When this second anti-dazzling screen (303) with the rotation of described tumbler (301,404) leave described photoelectric sensor (304,406) when photosignal district, described tumbler (301,404) makes described grid (401) leave described intended trajectoryDescribed the second end and to the motion of described first end, the photosignal of described photoelectric sensor (304,406) is not blocked, described lightElectric transducer (304,406) is in conducting state.
5. an exposal control method for medical science x-ray image documentation equipment, the method is applied to grid according to claim 1Telecontrol equipment; This exposal control method comprises:
When any rotation with described tumbler in described at least one anti-dazzling screen is through the light of described photoelectric sensor, described tumbler makes described grid be positioned at arbitrary end of described intended trajectory when in the signal of telecommunication the district, and this anti-dazzling screen covers instituteState the photosignal of photoelectric sensor, described photoelectric sensor is in off-state, and then cuts off described exposure control loop, makesMust expose and not be allowed to (601);
When any in described at least one anti-dazzling screen left described photoelectric sensor with the rotation of described tumbler, described tumbler makes described grid leave arbitrary end of described intended trajectory and transports to the other end when in photosignal the districtMoving, the photosignal of described photoelectric sensor is not blocked, and described photoelectric sensor is in conducting state, and then exposes to the sun described in conductingPhotocontrol loop, makes exposure be allowed to (602).
6. exposal control method according to claim 5, wherein, under original state, described grid is positioned at described fingerArbitrary end of fixed track, any in described at least one anti-dazzling screen is positioned at described photosignal district, described photosignal quiltBlock, exposure is not allowed to;
Carry out after work when described grid telecontrol equipment energising, described motor drives described tumbler to rotatablely move, described inThe described grid that rotarily drives of tumbler moves to the other end from one end of described intended trajectory, and makes to be positioned at described photoelectricityThe anti-dazzling screen of signaling zone leaves described photosignal district, and described photosignal is not blocked, and exposure is allowed to.
7. a medical science x-ray image documentation equipment, comprising: an x-ray device (11), an imaging device (12) and an operation and demonstrationEquipment (13), wherein, described x-ray device (11) at least comprises an exposure control loop, described imaging device (12) is at leastComprise: a grid (401) and is according to the grid telecontrol equipment described in claim 1 to 4 any one.
8. equipment according to claim 7, wherein, under original state, described grid (401) is positioned at described appointment railArbitrary end of mark, any in described at least one anti-dazzling screen (303) be positioned at described photoelectric sensor (304,406) described inPhotosignal district, this anti-dazzling screen (303) covers the photosignal of described photoelectric sensor (304,406), described photoelectric sensor(304,406) are in off-state and then cut off described exposure control loop, and exposure is not allowed to;
When the energising of described grid telecontrol equipment is carried out after work, described motor (311,408) drive described tumbler (301,404) rotatablely move, described tumbler (301,404) rotarily drive described grid (401) from one of described intended trajectoryEnd is to other end motion, and the anti-dazzling screen (303) that makes to be positioned at described photosignal district leaves described photosignal district, described photoelectricityThe photosignal of sensor (304,406) is not blocked, and described photoelectric sensor (304,406) is in conducting state and then conductingDescribed exposure control loop, is allowed to exposure.
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| CN101506904A (en) * | 2006-08-21 | 2009-08-12 | 皇家飞利浦电子股份有限公司 | Portable X-ray detector with grid sensing unit and X-ray imaging system for automatic exposure setting for the portable X-ray detector |
| CN102451014A (en) * | 2010-10-20 | 2012-05-16 | 上海西门子医疗器械有限公司 | Computed tomography (CT) equipment and a scout view imaging method |
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| US6647092B2 (en) * | 2002-01-18 | 2003-11-11 | General Electric Company | Radiation imaging system and method of collimation |
| US7242749B2 (en) * | 2005-11-15 | 2007-07-10 | General Electric Company | Methods and systems for dynamic pitch helical scanning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101506904A (en) * | 2006-08-21 | 2009-08-12 | 皇家飞利浦电子股份有限公司 | Portable X-ray detector with grid sensing unit and X-ray imaging system for automatic exposure setting for the portable X-ray detector |
| CN102451014A (en) * | 2010-10-20 | 2012-05-16 | 上海西门子医疗器械有限公司 | Computed tomography (CT) equipment and a scout view imaging method |
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