CN105125232A - CT (computed tomography) scanner with DR (digital radiography) filming function - Google Patents
CT (computed tomography) scanner with DR (digital radiography) filming function Download PDFInfo
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- CN105125232A CN105125232A CN201510626958.6A CN201510626958A CN105125232A CN 105125232 A CN105125232 A CN 105125232A CN 201510626958 A CN201510626958 A CN 201510626958A CN 105125232 A CN105125232 A CN 105125232A
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Abstract
The invention discloses a CT (computed tomography) scanner with a DR (digital radiography) filming function. The CT scanner comprises a rotating plate, an x ray source assembly and a detector assembly, wherein the rotating plate is connected with a rotary driving component mounted on the CT scanner; the x ray source assembly is mounted on the outer side wall of the rotating plate and can rotate on the rotating plate, and outgoing beams of the x ray source assembly face the axis center of the rotating plate; the detector assembly is mounted on the outer side wall, corresponding to the x ray source assembly, of the rotating plate; a detector in the detector assembly is perpendicular to the outer side wall of the rotating plate and can perform translation on the rotating plate with rotation of the x ray source assembly. The limitation of a conventional CT scanner for absence of the DR filming function is solved, and the multipurpose effect of the scanner is realized.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, more particularly, the present invention relates to a kind of CT scanner with DR film making function.
Background technology
In China, along with national health demand constantly increases, central nervous system disease development is fast in addition, and the state of an illness is critical, needs the patient carrying out Cranial Computed Tomography scanning day by day to increase every year because of brain diseases.At present, what need to carry out brain scans every year about has 2,000 ten thousand.But, the patient some be in a bad way delivers to CT Room and carries out the abnormally dangerous even possibility of scanography, because pass on patient to CT Room time, usually need the use being forced to temporarily stop various important physiology monitoring and some crash equipments, this is making patients's state of an illness or cause the generation of complication likely, and is difficult to when change of illness state provide in good time monitoring and treatment measure.Therefore, being badly in need of a kind of small-sized movable CT scanner for critical patient provides in good time bed other scan service, with the danger of the diagnosis that avoids delay.
Mobile CT scanner is to innovate greatly in recent years in CT history.Other CT scanner-the CereTom of first of world movable bed that NeuroLogica company of the U.S. released in 2005, provide in ward, the place such as emergency room, ICU serious symptom is the service that patient carries out diagnosis and treatment, achieve method of service focusing on people, represent a developing direction in CT scanner future.Because of the novelty that it is outstanding, CereTom obtains the Frost & Sullivan medical image product invention prize in 2006 years, and the medical science design gold medal in 2006 years.
There are some Mobile CT instrument products at present, but have employed the technology approximate with traditional CT bar none, as scintillator detector array, the working method of the transmission of slip ring data and helical scanning, and can only cross sectional reconstruction be carried out, be all that x-ray source and detector are fixedly installed on rotating disk, in turntable rotation process, detector receives the x-ray after being perforated through human organ or tissue, carries out 3-dimensional reconstruction by computer software to the data gathered.And in order to embody convenience further, adapt to the demand of future market, the diagnostic function of the other CT scanner of bed should do corresponding expansion, and as DR film making, x perspective, doctor can detect position according to patient, rational test mode is selected in the requirement of inspection fee and image resolution ratio.
The other CT scanner of bed has the features such as quality is light, volume is little, movement is flexible, but existing market is gone to bed, other CT scanner medical diagnosis function ratio is more single, CT scan detection can only be carried out to patient, do not possess DR film making function, client need is made to toss about in bed multiple sensing chamber to complete required Detection Information, bring inconvenience to patient, particularly to the critically ill patient of not easily movement, need a kind of multi-functional CT scanner conveniently to carry out multinomial detection.
Summary of the invention
An object of the present invention is to solve at least the problems referred to above, and the advantage will illustrated at least is below provided.
A further object of the invention is to provide a kind of CT scanner with DR film making function, this scanner has CT scan and DR film making function concurrently simultaneously, wherein, CT scan function adopts offset flat-panel detector to add half fan-delta sandbody mode of inclination x-ray source, and DR film making function adopts x-ray source and the vertical positive control of flat panel detector to penetrate projection pattern.The invention solves the restriction that conventional CT scanners does not possess DR film making function, achieve the effect of a tractor serves several purposes.
In order to realize, according to these objects of the present invention and other advantage, providing a kind of CT scanner with DR film making function, comprising:
Rotating disk, it is connected with the rotary driving part be arranged in CT scanner;
X-ray source assembly, its lateral wall being arranged on described rotating disk can be rotated on described rotating disk, and the outgoing beam of described x-ray source assembly is towards the axle center of described rotating disk; And
Detector assembly, it is arranged on described x-ray source assembly on obverse described rotating disk lateral wall;
Wherein, the detector in described detector assembly is vertical with described rotating disk lateral wall and can with rotation translation on described rotating disk of described x-ray source assembly.
Preferably, described x-ray source assembly comprises:
Base, its medial wall is arranged on the lateral wall of described rotating disk;
X-ray source generator, one end of its medial wall is arranged on by block bearing on the lateral wall of described base, and the beam exit window of described x-ray source assembly is arranged on the upper surface of described x-ray source generator;
First single shaft driver element, it is fixedly mounted on the lateral wall of described base, and described first single shaft driver element comprises the first slide rail, is arranged on the first slide block on the first slide rail and drives the first drive motors of described first slide block movement; And
First connecting rod assembly, its one end is rotatably connected on described first slide block, and the other end of described link assembly is rotatably connected on the other end of described x-ray source generator medial wall.
Preferably, described x-ray source generator medial wall is provided with x-ray source bearing, its one end is provided with stepped hole, itself and described pedestal bearing outer race axle are connected, described base one end is provided with outstanding Step Shaft, itself and described block bearing inner ring hole are connected, and described block bearing adopts crossed roller bearing.
Preferably, described first connecting rod assembly comprises:
First connecting rod;
Clutch shaft bearing, it is arranged on one end of described first connecting rod, is provided with the first rotating shaft in described clutch shaft bearing, and the other end of described first rotating shaft is fixedly connected on the described x-ray source bearing other end; And
Second bearing, it is arranged on the other end of described first connecting rod, is provided with the second rotating shaft in described second bearing, and the other end of described second rotating shaft is fixedly connected on described first slide block.
Preferably, described first single shaft driver element is provided with the first proximity transducer for limiting described first slide block movement stroke, described first drive motors is provided with band brake apparatus.
Preferably, described detector assembly comprises:
Pedestal, its medial wall is arranged on described base on obverse described rotating disk lateral wall;
Second single shaft driver element, it is fixedly mounted on described pedestal, and described second single shaft driver element comprises the second slide rail, is arranged on the second slide block on the second slide rail and drives the second drive motors of described second slide block movement;
Detector bearing, its upper end is fixedly connected with described second slide block;
Flat panel detector, it is horizontally installed on described detector bearing, and the test surface of described flat panel detector is relative with described exit window, and described flat panel detector is vertical with the radial direction of described rotating disk all the time.
Preferably, described second single shaft driver element is provided with the second proximity transducer for limiting described second slide block movement stroke, described second drive motors is provided with band brake apparatus.
Preferably, described base and pedestal are 180 degree and are relatively fixedly installed on described rotating disk, and the vertical dimension between described base and pedestal is not less than the diameter of described rotating disk endoporus.
Preferably, described base and rotating disk are located with circular arc concave surface, and the intrados of described base flushes with the intrados of described rotating disk, and the extrados of described base flushes with the extrados of described rotating disk;
Described pedestal offers waist type pin-and-hole, described waist type pin-and-hole is perpendicular to described flat panel detector, and described pedestal is bolted on described rotating disk by arranging in described waist type pin-and-hole.
Preferably, described rotating disk is arranged on the hoistable platform of described CT scanner by bracket.
The present invention at least comprises following beneficial effect:
1, the invention provides a kind of CT scanner with DR film making function, extend the using function of the other CT scanner of bed, improve the convenience of the other CT scanner of bed, doctor can detect position according to patient, the requirement of inspection fee and image resolution ratio selects rational test mode;
2, CT scan function adopts offset flat-panel detector to add half fan-delta sandbody mode of inclination x-ray source, increase effectively scan vision and scan aperture, and reduces the requirement to x-ray source segment angle;
3, DR film making function then adopts x-ray source and the vertical positive control of flat panel detector to penetrate projection pattern, checks fast affected site with low radiation dose;
4, the switching mechanism of a kind of CT scan provided by the invention, DR film making function allows CT scan visual field continuously adjustabe, and debugs easily, and control simple, positioning and locking reliably, ensure that scanning accuracy;
5, CT scanner of the present invention provides tomography and perspective two kinds of imaging modes, conveniently moving, can use at emergency room, ICU and public ward, can be used for vehicle-mounted, carrier-borne and airborne, meet critical illness first aid and field trauma gives treatment to needs fast, the convenient scanning to there being auxiliary monitoring to give first aid to the patient of instrument.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the structural representation under CT scan functional status of the present invention;
Fig. 2 is the structural representation under DR of the present invention film making functional status;
Fig. 3 is x-ray source modular construction schematic diagram of the present invention;
Fig. 4 is the assembly structure graphics of x-ray source assembly of the present invention and beam-defining clipper;
Fig. 5 is three dimensional structure schematic diagram on front side of x-ray source assembly of the present invention;
Fig. 6 is three dimensional structure schematic diagram on rear side of x-ray source assembly of the present invention;
Fig. 7 is detector assembly structural representation of the present invention;
Fig. 8 is three dimensional structure schematic diagram on front side of detector assembly of the present invention;
Fig. 9 is x-ray source assembly, detector assembly and rotating disk assembly structure front view;
Figure 10 is x-ray source assembly, detector assembly and rotating disk assembly structure rearview;
Figure 11 be CT scanner of the present invention face structural representation;
Figure 12 is the perspective view of CT scanner of the present invention;
Wherein, 1. rotating disk, 2.x radiographic source assembly, 21. bases, 22.x radiographic source generator, 23.x radiographic source bearing, 24. block bearings, 25. rod member assemblies, 251. first connecting rod, 252. second bearings, 253. small end cover, 26. first slide blocks, 27. first single shaft driver elements, 28. first drive motors, 29. first proximity transducers, 3. detector assembly, 31. pedestals, 32. flat panel detectors, 33. detector bearings, 34. second single shaft driver elements, 35. second drive motors, 36. second proximity transducers, 4. bracket, 5. hoistable platform, 6. synchronous pulley, 7. beam-defining clipper.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to description word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not allotted in " comprising " and " comprising " term or the existence of its combination or interpolation.
As shown in figs. 1-12, the invention provides a kind of CT scanner with DR film making function, comprising:
Rotating disk 1, it is connected with the rotary driving part be arranged in CT scanner; In the present embodiment, described rotating disk 1 is arranged in frame, and freely can rotate in frame, frame both sides are arranged on the hoistable platform 5 of described CT scanner by bracket 4, frame lower end is provided with synchronous pulley 6 simultaneously, synchronous pulley 6 is connected with rotating disk 1 by Timing Belt, thus synchronous pulley 6 drives rotating disk 1 to realize forward and reverse in frame, completes CT scan process, as depicted in figs. 11-12.
X-ray source assembly 2, its lateral wall being arranged on described rotating disk 1 can be rotated on described rotating disk 1, the outgoing beam of described x-ray source group 2 is towards the axle center of described rotating disk, concrete, x-ray source assembly 2 one end is rotatably connected on by turning cylinder on the lateral wall of rotating disk 1, the other end being promoted x-ray source assembly 2 by driving mechanism is rotated on the lateral wall of rotating disk 1 around the turning cylinder of the other end, thus the shooting angle of x-ray can be adjusted, simultaneously, the radiation exit place of x-ray source assembly 2 is provided with beam-defining clipper 7, as shown in Figure 4; And
Detector assembly 3, it is arranged on described x-ray source assembly 2 on obverse described rotating disk 1 lateral wall, for receive from x-ray source assembly 2 outgoing through patient body x-ray, thus extraction effective information, CT scan function of the present invention adopts offset flat-panel detector to add half fan-delta sandbody mode of inclination x-ray source, as shown in Figure 1, by the angle of adjustment x-ray source assembly 2 emergent ray, the detector assembly of translation simultaneously 3 makes it keep receiving the emergent ray of x-ray source assembly 2, for CT scan imaging, first aspect, DR film making function adopts x-ray source and the vertical positive control of flat panel detector to penetrate projection pattern, as shown in Figure 2, when DR film making will be carried out, as long as x-ray source assembly 2 to be reset to the vertical position of flat panel detector, that is CT scanner of the present invention provides 2 kinds of working methods, a kind of is the half fan-delta sandbody mode adopting offset flat-panel detector to add inclination x-ray source, complete CT scan, another kind is, x-ray source and the vertical positive control of flat panel detector penetrate projection pattern, complete DR film making and perspective function, CT scanner can freely switch easily in these two kinds of working methods, the rotation of x-ray source assembly and flat panel detector translation are interlocks, thus achieve combine several functions on same machine.
Wherein, the detector in described detector assembly 3 is vertical with described rotating disk 1 lateral wall and can with the rotation of described x-ray source assembly 2 translation on described rotating disk 1, ensures that detector can receive the outgoing x-ray of x-ray source assembly 2 all the time.
In prior art, x-ray emission source and detector are arranged in the circular inner sidewall of rotating disk by general CT scanner, and detector is all scintillator detector array, with the transmission of slip ring data and the working method of helical scanning, and can only cross sectional reconstruction be carried out, be all that x-ray source and detector are fixedly installed on rotating disk, in turntable rotation process, detector receives the x-ray after being perforated through human organ or tissue, carries out 3-dimensional reconstruction by computer software to the data gathered.This detector and x-ray emission source limit the range of application of CT scanner, CT scan can only be used for, and in the present invention, adopt plate detector, add more of the prior art less in the focal plane of x-ray source, pixel is higher, imaging is more clear, thus when x-ray source and the vertical positive control of flat panel detector, DR film making and perspective function can be realized, simultaneously, the half fan-delta sandbody mode adopting offset flat-panel detector to add inclination x-ray source can complete CT scan process, the x-ray source tilting to install is adopted to increase the distance of detector to x-ray source center of rotation, thus in fact increase scanning internal diameter, scanner scanning can complete whole three-dimensional reconstruction process for one week, and sweep limits is larger, thus the x-ray amount of radiation reduced patient, further can on the basis keeping original scanner size, increase the scanning holes internal diameter of scanner, the convenient scanning to there being auxiliary monitoring to give first aid to the patient of instrument.
In a kind of embodiment, described x-ray source assembly comprises:
Base 21, the laminating of its medial wall is arranged on the lateral wall of described rotating disk 1; Base 21 can be the steel plate of punching, is bolted on rotating disk;
X-ray source generator 22, one end of its medial wall is arranged on by block bearing 24 on the lateral wall of described base 21, and the beam exit window of described x-ray source assembly is arranged on the upper surface of described x-ray source generator 22;
First single shaft driver element 27, it is fixedly mounted on the lateral wall of described base 21, and described first single shaft driver element 27 comprises the first slide rail, is arranged on the first slide block 26 on the first slide rail and drives the first drive motors 28 of described first slide block movement; And
First connecting rod assembly 25, its one end is rotatably connected on described first slide block 26, the other end of described link assembly 25 is rotatably connected on the other end of described x-ray source generator 22 medial wall, thus when the first drive motors 28 drives the first slide block 26 to move on the first slide rail, the lower end of first connecting rod assembly 25 is driven to move, because first connecting rod assembly 25 two ends are all rotationally connected, therefore in the process of movement, first connecting rod assembly rotates simultaneously, x-ray source generator 22 is driven to rotate around block bearing 24, thus the shooting angle of adjustment x-ray.
In another kind of embodiment, described x-ray source generator 22 medial wall is provided with x-ray source bearing 23, its one end is provided with stepped hole, itself and described block bearing 24 outer ring axle are connected, described base 21 one end is provided with outstanding Step Shaft, itself and described block bearing 24 inner ring hole are connected, thus described block bearing 24 is rotationally connected x-ray source bearing 23 and base 21, and described block bearing 24 adopts crossed roller bearing.
In another kind of embodiment, described first connecting rod assembly 25 comprises:
First connecting rod 251;
Clutch shaft bearing, it is arranged on one end of described first connecting rod 251, the first rotating shaft is provided with in described clutch shaft bearing, the other end of described first rotating shaft is fixedly connected on described x-ray source bearing 23 other end, the end face of clutch shaft bearing arranges small end cover, and with small end cover described in screw fastening, limit the axial float of clutch shaft bearing; And
Second bearing 252, it is arranged on the other end of described first connecting rod 251, the second rotating shaft is provided with in described second bearing 252, the other end of described second rotating shaft is fixedly connected on described first slide block 26, equally, the end face of the second bearing 252 arranges small end cover 253, and with small end cover described in screw fastening 253, be used for the axial float of restriction second bearing 252.
In another kind of embodiment, described first single shaft driver element 27 is provided with the first proximity transducer 29 for limiting described first slide block 26 movement travel, described first drive motors 28 is provided with band brake apparatus, be used for accurately controlling the stroke of the first slide block 26, and then accurately control the shooting angle of x-ray.
In another kind of embodiment, described detector assembly 3 comprises:
Pedestal 31, its medial wall is arranged on described base 21 on obverse described rotating disk 1 lateral wall;
Second single shaft driver element 34, it is fixedly mounted on described pedestal 31, described second single shaft driver element comprises the second slide rail, is arranged on the second slide block on the second slide rail and drives the second drive motors 35 of described second slide block movement, and its mechanism is identical with the first single shaft driver element with kinetic characteristic;
Detector bearing 33, its upper end is fixedly connected with described second slide block;
Flat panel detector 32, it is horizontally installed on described detector bearing 33, and the test surface of described flat panel detector 32 is relative with described exit window, and described flat panel detector 33 is vertical with the radial direction of described rotating disk 1 all the time.Second drive motors 35 drives flat panel detector 32 to realize translation on pedestal 31, and the first drive motors and the second drive motors are synchronized with the movement, the ray making flat panel detector 32 receive x-ray source all the time to send.
In another kind of embodiment, described second single shaft driver element 34 is provided with the second proximity transducer 36 for limiting described second slide block movement stroke, described second drive motors 35 is provided with band brake apparatus, be used for accurately controlling the stroke of the second slide block, and then accurately control the position of flat panel detector 32.
In another kind of embodiment, described base 21 and pedestal 31 are fixedly installed on described rotating disk 1 in 180 degree relatively, vertical dimension between described base 21 and pedestal 31 is not less than the diameter of described rotating disk 1 endoporus, ensure scanner scanning aperture to be done greatly under the prerequisite of fine definition as far as possible, meet and detect needs.
In technique scheme, described base 21 is located with circular arc concave surface with rotating disk 1, namely the intrados of described base 21 flushes with the intrados of described rotating disk 1, the extrados of described base flushes with the extrados of described rotating disk, thus restriction secures base 21 position on the turntable 1, base 21 accurate location on the turntable 1 can be facilitated, the shooting angle of x-ray is not impacted;
Simultaneously, described pedestal 31 offers waist type pin-and-hole, described waist type pin-and-hole is perpendicular to the detection plane of described flat panel detector 32, described pedestal 31 is bolted on described rotating disk 1 by arranging in described waist type pin-and-hole, only to allow the fine position along rotating disk radial direction, the synchronous calibration of flat panel detector 32 and x-ray source is not impacted.
From the above mentioned, the invention provides a kind of CT scanner with DR film making function, primarily of rotating disk, x-ray source assembly, detector assembly three part composition.Described rotating disk is connected with the parts that frame can produce rotary motion, as bearing, direct driving motor ring flange.Described x-ray source assembly comprises x-ray source, base, block bearing, x-ray source bearing, link assembly, slide block, single shaft driver element, proximity transducer and band band-type brake motor; Described link assembly comprises connecting rod, first, second bearing, small end cover; Described detector assembly comprises flat panel detector, pedestal, single shaft driver element, proximity transducer, band band-type brake motor and detector bearing.Above-mentioned x-ray source is finished parts, be fixedly connected with described x-ray source bearing by self mounting structure, described x-ray source bearing settlement has stepped hole, coordinate with described pedestal bearing outer race axle, the Step Shaft that described block bearing inner ring hole and described base are given prominence to is fixedly connected, described block bearing adopts crossed roller bearing, can bear larger radial and axial load.Above-mentioned single shaft driver element is finished parts, configures described proximity transducer, is arranged on base with screw, is driven the translation of slide block, the preferred motor of described band band-type brake motor by described band band-type brake motor.The material of above-mentioned connecting rod adopts 45 steel, and two ends are provided with stepped hole, with put into coordinate with it described in first, second bearing, small end cover described in the end face screw fastening in hole, limits the axial float of first, second bearing described.Above-mentioned x-ray source bearing is provided with an outstanding Step Shaft feature, coordinates with clutch shaft bearing inner ring described in described connecting rod one end, form revolute pair with this.Above-mentioned slide block is fixedly connected with the slide block of described single shaft driver element, and described slide block is provided with outstanding Step Shaft feature, coordinates, form revolute pair with this with the second bearing inner race described in the described connecting rod other end.Above-mentioned flat panel detector is fixedly installed on described detector bearing, and described detector bearing is fixedly installed on the slide block of described single shaft driver element.Above-mentioned single shaft driver element is finished parts, configures described proximity transducer, is arranged on pedestal with screw, is driven the translation of slide block, the preferred motor of described band band-type brake motor by described band band-type brake motor.Above-mentioned base and pedestal are 180 degree and are relatively fixedly installed on described rotating disk, and base and rotating disk are located with circular arc concave surface, pedestal offer waist type pin-and-hole, only allow the fine position along rotating disk radial direction.
Specific works principle is:
The present invention extends the using function of the other CT scanner of bed, and conventional func is CT scan, adopts half fan-delta sandbody mode of offset flat-panel detector and inclination x-ray source, as shown in Figure 1, effectively can increase scan vision.Expanded function is DR film making, adopts x-ray source and the vertical positive control of flat panel detector to penetrate projection pattern, as shown in Figure 2.
Described x-ray source assembly 2 and detector assembly 3 rely on base 21 and pedestal 31 to be fixedly installed on rotating disk 1 respectively.
There is 3 revolute pairs and 1 sliding pair in described x-ray source assembly 2, composition slider-crank mechanism, using slide block as driving link.Drive the slide block rectilinear motion of single shaft driver element 27 with band-type brake motor 28, drive base 21 to swing around block bearing 24 together with radiographic source 22 by link assembly 25, to reach the adjustment of x-ray source position.The step angle of control cincture band-type brake motor 28 can realize the location of single shaft driver element 27 slide block, thus determine the position of x-ray source, lock whole mechanism by the band-type brake device of band band-type brake motor 28 after arriving desired location, proximity transducer 29 can avoid the excess of stroke in slide block movement process.Under CT scan pattern, link assembly 25 should, perpendicular to the direction of motion of single shaft driver element 27 slide block, make mechanism be in dead-centre position.
Described detector assembly 3 is mechanism with single degree of freedom, the location of flat panel detector 32 can be realized by the step angle of control cincture band-type brake motor 35, to be with the band-type brake device of band-type brake motor 35 to lock whole mechanism after arrival desired location, proximity transducer 36 can avoid the excess of stroke in slide block movement process.
The teamwork of above-mentioned x-ray source assembly 2 and above-mentioned detector assembly 3, can reach the switching demand of CT scan function and DR film making function.
Difference with the prior art point of the present invention is:
By bed on market, CT scanner generally adopts the fixed x-ray source of relative rotating disk and detector, only possesses for patient provides CT examination function, and conventional multi-detector spiral scan pattern, flying spot bundle is symmetrical relative to the vertical plane in mistake axle center.
The invention provides the switching mechanism of a kind of CT scan, DR film making function, extend the using function of the other CT scanner of bed.CT scan function adopts offset flat-panel detector to add half fan-delta sandbody mode of inclination x-ray source, and DR film making function adopts x-ray source and the vertical positive control of flat panel detector to penetrate projection pattern.
The present invention is for the beneficial effect of prior art:
The invention provides a kind of CT scanner with DR film making function, extend the using function of the other CT scanner of bed, improve the convenience of the other CT scanner of bed, doctor can detect position according to patient, the requirement of inspection fee and image resolution ratio selects rational test mode; CT scan function adopts offset flat-panel detector to add half fan-delta sandbody mode of inclination x-ray source, increase effectively scan vision and scan aperture, and reduces the requirement to x-ray source segment angle; DR film making function then adopts x-ray source and the vertical positive control of flat panel detector to penetrate projection pattern, checks fast affected site with low radiation dose; The switching mechanism of a kind of CT scan provided by the invention, DR film making function allows CT scan visual field continuously adjustabe, and debugs easily, and control simple, positioning and locking reliably, ensure that scanning accuracy; CT scanner of the present invention provides tomography and perspective two kinds of imaging modes, conveniently moving, can use at emergency room, ICU and public ward, can be used for vehicle-mounted, carrier-borne and airborne, meet critical illness first aid and field trauma gives treatment to needs fast, the convenient scanning to there being auxiliary monitoring to give first aid to the patient of instrument.The method of service of CT scanner is transformed into " focus be put on man " from " centered by instrument ", realizes the theory that people-oriented.
Although embodiment of the present invention are open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the general concept that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (10)
1. there is a CT scanner for DR film making function, it is characterized in that, comprising:
Rotating disk, it is connected with the rotary driving part be arranged in CT scanner;
X-ray source assembly, its lateral wall being arranged on described rotating disk can be rotated on described rotating disk, and the outgoing beam of described x-ray source assembly is towards the axle center of described rotating disk; And
Detector assembly, it is arranged on described x-ray source assembly on obverse described rotating disk lateral wall;
Wherein, the detector in described detector assembly is vertical with described rotating disk lateral wall and can with rotation translation on described rotating disk of described x-ray source assembly.
2. have the CT scanner of DR film making function as claimed in claim 1, it is characterized in that, described x-ray source assembly comprises:
Base, its medial wall is arranged on the lateral wall of described rotating disk;
X-ray source generator, one end of its medial wall is arranged on by block bearing on the lateral wall of described base, and the beam exit window of described x-ray source assembly is arranged on the upper surface of described x-ray source generator;
First single shaft driver element, it is fixedly mounted on the lateral wall of described base, and described first single shaft driver element comprises the first slide rail, is arranged on the first slide block on the first slide rail and drives the first drive motors of described first slide block movement; And
First connecting rod assembly, its one end is rotatably connected on described first slide block, and the other end of described link assembly is rotatably connected on the other end of described x-ray source generator medial wall.
3. there is the CT scanner of DR film making function as claimed in claim 2, it is characterized in that, described x-ray source generator medial wall is provided with x-ray source bearing, its one end is provided with stepped hole, itself and described pedestal bearing outer race axle are connected, described base one end is provided with outstanding Step Shaft, and itself and described block bearing inner ring hole are connected, and described block bearing adopts crossed roller bearing.
4. have the CT scanner of DR film making function as claimed in claim 3, it is characterized in that, described first connecting rod assembly comprises:
First connecting rod;
Clutch shaft bearing, it is arranged on one end of described first connecting rod, is provided with the first rotating shaft in described clutch shaft bearing, and the other end of described first rotating shaft is fixedly connected on the described x-ray source bearing other end; And
Second bearing, it is arranged on the other end of described first connecting rod, is provided with the second rotating shaft in described second bearing, and the other end of described second rotating shaft is fixedly connected on described first slide block.
5. there is the CT scanner of DR film making function as claimed in claim 4, it is characterized in that, described first single shaft driver element is provided with the first proximity transducer for limiting described first slide block movement stroke, described first drive motors is provided with band brake apparatus.
6. have the CT scanner of DR film making function as claimed in claim 5, it is characterized in that, described detector assembly comprises:
Pedestal, its medial wall is arranged on described base on obverse described rotating disk lateral wall;
Second single shaft driver element, it is fixedly mounted on described pedestal, and described second single shaft driver element comprises the second slide rail, is arranged on the second slide block on the second slide rail and drives the second drive motors of described second slide block movement;
Detector bearing, its upper end is fixedly connected with described second slide block;
Flat panel detector, it is horizontally installed on described detector bearing, and the test surface of described flat panel detector is relative with described exit window, and described flat panel detector is vertical with the radial direction of described rotating disk all the time.
7. there is the CT scanner of DR film making function as claimed in claim 6, it is characterized in that, described second single shaft driver element is provided with the second proximity transducer for limiting described second slide block movement stroke, described second drive motors is provided with band brake apparatus.
8. have the CT scanner of DR film making function as claimed in claim 7, it is characterized in that, described base and pedestal are 180 degree and are relatively fixedly installed on described rotating disk, and the vertical dimension between described base and pedestal is not less than the diameter of described rotating disk endoporus.
9. have the CT scanner of DR film making function as claimed in claim 8, it is characterized in that, described base and rotating disk are located with circular arc concave surface;
Described pedestal offers waist type pin-and-hole, described waist type pin-and-hole is perpendicular to described flat panel detector, and described pedestal is bolted on described rotating disk by arranging in described waist type pin-and-hole.
10. have the CT scanner of DR film making function as claimed in claim 1, it is characterized in that, described rotating disk is arranged on the hoistable platform of described CT scanner by bracket.
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| CN201510626958.6A CN105125232B (en) | 2015-09-28 | 2015-09-28 | CT scanner with DR film making function |
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| CN201510626958.6A CN105125232B (en) | 2015-09-28 | 2015-09-28 | CT scanner with DR film making function |
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| CN109100376A (en) * | 2018-10-15 | 2018-12-28 | 廊坊市新思维科技有限公司 | A kind of pipeline DR radiography automatic scanning device |
| CN109932374A (en) * | 2019-04-03 | 2019-06-25 | 天津三英精密仪器股份有限公司 | A kind of device having the difunctional image checking of CT and DR |
| CN112057095A (en) * | 2020-09-29 | 2020-12-11 | 赛诺威盛科技（北京）有限公司 | Support integrated type scanning structure, scanning device and scanning system |
| CN112107323A (en) * | 2020-09-29 | 2020-12-22 | 赛诺威盛科技（北京）有限公司 | Rotary X-ray machine structure, scanning device and scanning system |
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| WO2023280213A1 (en) * | 2021-07-07 | 2023-01-12 | 同方威视技术股份有限公司 | Inspection system and method |
| WO2023125612A1 (en) * | 2021-12-30 | 2023-07-06 | 同方威视技术股份有限公司 | Radiation inspection system |
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| CN115144922B (en) * | 2021-03-30 | 2023-08-04 | 同方威视技术股份有限公司 | Vehicle-mounted security inspection system |
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