CN203016974U - X-ray CT (computerized tomography) equipment and filtering and transmitting mechanism thereof - Google Patents
X-ray CT (computerized tomography) equipment and filtering and transmitting mechanism thereof Download PDFInfo
- Publication number
- CN203016974U CN203016974U CN 201220721578 CN201220721578U CN203016974U CN 203016974 U CN203016974 U CN 203016974U CN 201220721578 CN201220721578 CN 201220721578 CN 201220721578 U CN201220721578 U CN 201220721578U CN 203016974 U CN203016974 U CN 203016974U
- Authority
- CN
- China
- Prior art keywords
- filtration
- drive mechanism
- support
- assembly
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a filtering and transmitting mechanism which is assembled on the stand of medical imaging equipment and can be used for filtering differently according to different parts to be scanned. The filtering and transmitting mechanism comprises a mounting plate and a filtering and transmitting device; the filtering and transmitting device is assembled on the mounting plate and comprises a transmitting mechanism, a driving device, a guiderail assembly, a filtering assembly and a side connecting plate; the transmitting mechanism is assembled on the mounting plate; the driving device is used for driving the transmitting mechanism; the guiderail assembly is assembled on the mounting plate and located on the same side as the transmitting mechanism; the filtering assembly is arranged on the guiderail assembly and can be driven by the transmitting mechanism to slide along the guiderail assembly; and the side connecting plate is used for connecting the filtering assembly with the transmitting mechanism. The utility model further provides X-ray CT (computerized tomography) equipment. The X-ray CT equipment comprises a rotating stand, an X-ray source, a detector array and the filtering and transmitting mechanism, wherein the rotating stand is provided with a detection cavity which the detected human body can come in and go out of, the X-ray source is assembled on the rotating stand, the detector array is assembled on the rotating stand and is opposite to the X-ray source, and the filtering and transmitting mechanism is arranged between the X-ray source and the detected human body.
Description
Technical field
This utility model relates to a kind of armarium, relates in particular to a kind of X ray CT equipment for clinical disease diagnosis and filters drive mechanism.
Background technology
The X ray CT equipment relevant to this utility model is used for clinical disease diagnosis, discloses the 1611190A patent as Chinese invention patent and discloses.This X ray CT equipment comprise have a rotary frame for the test chamber of acceptor turnover, group is located on rotary frame x-ray source, group for generation of X ray and is located at a pair of filter, the group that are used for controlling x-ray bombardment intensity on rotary frame and is located at the collimator and the group that are used for controlling the x-ray bombardment scope on rotary frame and is located on rotary frame for detection of the detector that passes the acceptor X ray.X ray CT equipment comprises that also the signal that detects according to detector carries out the image reconstruction unit of image reconstruction.Two filters are the mirror image setting, and are connected with a motor respectively, are used for moving to adjust the exposure rate of X ray by the motor drives filter when the different parts of scanning acceptor, and then remove the soft rays useless to reconstructed image.
But, X ray CT equipment is connected respectively to drive filter by two motor and moves to realize control to X ray intensity with a pair of filter that is the mirror image setting, the mechanism that can cause X ray CT equipment is comparatively complicated, and two motor are installed are also needed larger installing space.In addition, because motor also is arranged on rotary frame, in X ray CT device scan process, control respectively wave filter by two motor, can exist the motion of motor drives wave filter asynchronous, cause wave filter to locate inaccurate, the unsettled problem of wave filter motion.
In order to address the above problem, this utility model provides a kind of improved X ray CT equipment and filters drive mechanism.
The utility model content
It is a kind of simple in structure and can adjust accurately, locate filtration that the purpose of this utility model is to provide, so satisfy X ray CT equipment in the clinical scanning process to the X ray CT equipment of the X ray requirement of strength at difference diagnosis position and filter drive mechanism.
For achieving the above object, filtration drive mechanism of the present utility model is to be achieved through the following technical solutions: a kind of filtration drive mechanism, be mounted on the frame of medical imaging equipment, can select different filtrations according to the difference at position to be scanned, it comprises installing plate and is mounted on filtration actuating device on installing plate.Described filtration actuating device comprise the drive mechanism that is mounted on installing plate, drive transmission device driving device, be mounted on installing plate and be positioned at drive mechanism the same side guide assembly, be set up on guide assembly and the filtration assembly that can be under the drive of drive mechanism slides along guide assembly and will filter assembly and be connected to side connecting plate on drive mechanism.
This utility model further defines: described guide assembly comprises the first guide rail and the second guide rail that is mounted on installing plate and is positioned at described drive mechanism the same side.
This utility model further defines: described filtration assembly is set up between the first guide rail and the second guide rail.
This utility model further defines: described drive mechanism comprises the first supporting seat and the second supporting seat that are mounted on installing plate, be located at actuating device between the first supporting seat and the second supporting seat, be mounted on the gripper shoe that is used for the support drive device on installing plate and the shaft coupling of connection for transmission device and driving device.
This utility model further defines: described actuating device comprises being set up in the ball-screw on the first supporting seat and the second supporting seat and being mounted on ball-screw also can make along ball-screw the nut seat of axially-movable.
This utility model further defines: described filtration assembly is connected on the nut seat of described actuating device by side connecting plate.
This utility model further defines: described the first supporting seat has the first accepting hole of horizontally set, described the second supporting seat is provided with the second accepting hole that laterally runs through, and described ball-screw has the first axle part in the first accepting hole that is contained in the first supporting seat, be contained in the second axle part and the threaded portion between the first axle part and the second axle part in the second accepting hole of the second supporting seat.
This utility model further defines: described shaft coupling connects ball-screw and passes the second axle part of the second accepting hole of the second supporting seat to driving device.
This utility model further defines: described nut seat comprises the screw that coordinates with the threaded portion of ball-screw and is mounted on contiguous block on screw.
This utility model further defines: described filtration assembly is fixed on the contiguous block of described nut seat by described side connecting plate.
This utility model further defines: described screw comprises head and the trunk portion that is connected with head, and described contiguous block is mounted on the trunk portion of described screw by bolt.
This utility model further defines: described screw also has the screwed hole that runs through head and trunk portion setting and coordinate with the threaded portion of ball-screw.
This utility model further defines: the screw of described nut seat is the T-shape setting.
This utility model further defines: described side connecting plate comprises vertically tabular body and is extended the connecting portion that arranges by the body top bending.
This utility model further defines: the body of described side connecting plate is connected with the filtration assembly by bolt, and the connecting portion of described side connecting plate is connected with drive mechanism by bolt.
This utility model further defines: described connecting portion is to be arranged by horizontal-extending after the top middle portion bending of described body.
This utility model further defines: described filtration assembly comprises and is set up in the filtration support between described the first guide rail and the second guide rail and is located in the filtration that filters between support.
This utility model further defines: described filtration support comprise be mounted on the first guide rail with between the second guide rail and a plurality of supports of filtering of sandwiched and the support group is located at together with screw and nut.
This utility model further defines: the support of described filtration support is provided with the perforation of passing for screw, and described filtration is provided with locating hole corresponding with the perforation of described support and that supply screw to pass.
This utility model further defines: the described two ends, bottom that are positioned at the support that filters outermost end all bend to extend and are provided with ear, and described ear secures to respectively on the first guide rail, the second guide rail by bolt.
This utility model further defines: the described lengthwise that is positioned at the close described drive mechanism of support that filters outermost end also bends to extend to an end and is provided with fixed part, and described fixed part secures on described side connecting plate by bolt.
This utility model further defines: described fixed part is to be arranged away from described filtration direction horizontal-extending by court after the front end bending of described support.
This utility model further defines: described one of them that is arranged in two supports filtering outermost end also is provided with installation portion along its longitudinally one end bending, the corresponding setting of fixed part of described installation portion and this support.
This utility model further defines: described filtration actuating device also comprises and is mounted on the photoelectricity contact that filters on assembly, and described photoelectricity contact is to be mounted on the installation portion of described support by bolt.
This utility model further defines: the top of described support all upwards bends extends the holding part that is provided with for the described filtration of clasp, and the holding part of described adjacent stent arranges in opposite directions.
This utility model further defines: described group of middle part that is provided with the support of photoelectricity contact also is provided with the loading plate of bending, described filtration actuating device also comprises the focus tracking plate that is mounted on described filtration support, and described focus is followed the trail of plate and is located on described loading plate by the bolt group.
This utility model further defines: described filtration has by the top and protrudes out the locating piece of setting and the groove that the position between locating piece is recessed to form by the top downwards.
This utility model further defines: the groove of described filtration is the parabolic shape setting.
This utility model further defines: the filtration number of described filtration assembly is two, is respectively first and filters and the second filtration, and the support number of described filtration support is four.
This utility model further defines: the locating piece of described filtration comprises that the top by the first filtration extends upward the first locating piece of setting and the second locating piece that is extended upward setting by the second top that filters, the groove of described filtration comprises to be located at the first the first groove that filters and to be located at the second the second groove that filters, the locating hole of described filtration comprises that laterally running through first filters the first locating hole that arranges and laterally run through the second locating hole that the second filtration arranges, and described installing plate is provided with an opening.
This utility model further defines: the described first the first groove that filters filters the distance of length direction opening greater than the distance of the described second the second groove that filters along described the second filtration length direction opening along described first.
This utility model further defines: described filtration drive mechanism also comprises the end connecting plate that is located between described filtration assembly and described guide assembly, and the locating piece of described filtration is connected on the sidewall of connecting plate of the described end.
This utility model further defines: described filtration drive mechanism also comprises the end connecting plate that is located between described filtration assembly and described guide assembly, and the locating piece of described filtration is connected on the sidewall of connecting plate of the described end.
This utility model further defines: described the first guide rail has the first slider guide and the second slider guide that is oppositely arranged, described the second guide rail have with the 3rd slider guide of the first corresponding setting of slider guide of the first guide rail and with the 4th slider guide of the second corresponding setting of slider guide of the first guide rail, described support is locked in respectively on the first slider guide, the second slider guide, the 3rd slider guide, the 4th slider guide by bolt.
For achieving the above object, this utility model also provides a kind of X ray CT equipment, be used for clinical disease diagnosis, it comprises the detector array that has a rotary frame for the test chamber of acceptor turnover, is mounted on the x-ray source on rotary frame and is mounted on frame and is oppositely arranged with x-ray source.Described X ray CT equipment also comprises filtration drive mechanism as above.
This utility model further defines: described X ray CT equipment also comprises the X ray pipe end collimator that is mounted on rotary frame.
This utility model further defines: described filtration drive mechanism is between x-ray source and X ray pipe end collimator.
compared with prior art, X ray CT equipment with filtration drive mechanism of the present utility model will be set up on the nut seat of actuating device that filtration assembly on the first guide rail and the second guide rail is connected to drive mechanism by side connecting plate, can rotate at the ball-screw of driving device drive transmission to drive when making nut seat do axially-movable along ball-screw and filter assembly along the first guide rail, the second guide rail slides, thereby realize selecting the different functions that filter according to the difference at position to be scanned, simple in structure, easy to operate, and can realize filtering fast, accurately locate.
Description of drawings
Fig. 1 is the structural representation of X ray CT equipment of the present utility model;
Fig. 2 is the axonometric chart of the filtration drive mechanism of X ray CT equipment of the present utility model;
Fig. 3 is the axonometric chart of filtration actuating device of the filtration drive mechanism of X ray CT equipment of the present utility model;
Fig. 4 is another visual angle axonometric chart of filtration actuating device shown in Figure 3;
Fig. 5 is the filtration assembly of X ray CT equipment of the present utility model and the axonometric chart of guide assembly;
Fig. 6 is filtration assembly shown in Figure 5 and another visual angle axonometric chart of guide assembly;
Fig. 7 is the filtration support of X ray CT equipment of the present utility model and the axonometric chart of guide assembly;
Fig. 8 is the axonometric chart of the filtration support of X ray CT equipment of the present utility model, and wherein the not shown support group that will filter is located at together screw and nut;
Fig. 9 is the axonometric chart of side connecting plate of the filtration actuating device of X ray XT equipment of the present utility model;
Figure 10 is the axonometric chart of the filtration assembly of X ray CT equipment of the present utility model;
Figure 11 is the cutaway view along A-A direction in Fig. 2.
The specific embodiment
See also Fig. 1 to shown in Figure 11, this utility model provides a kind of X ray CT equipment 100, be used for clinical disease diagnosis, it comprise one for the rotary frame 1 of the test chamber 10 of acceptor 6 turnover, respectively the group x-ray source 2 that is located at rotary frame 1 opposite end and detector array 3 and successively group be located at filtration drive mechanism 4 and X ray pipe end collimator 5 on rotary frame 1 and between x-ray source 2 and acceptor 6.X-ray source 2 emissions are for detection of the X ray 20 of acceptor 6.Detector array 3 is used for receiving the X ray 20 that passes acceptor 6, and converts the X ray 20 that detects to successive image reconstruction required signal.Described X ray pipe end collimator 5 is used for controlling the range of exposures of X ray 20, and then controls the slice thickness at the position to be scanned of acceptor 6.Described filtration drive mechanism 4 is used for absorbing low energy X ray and makes the unification of X ray energy, thereby control the exposure rate of X ray 20 between x-ray source 2 and X ray pipe end collimator 5.
Please emphasis consult Fig. 2 to shown in Figure 11, described filtration drive mechanism 4 comprises that one is the installing plate 40 of tabular setting and is fixed on filtration actuating device 41 on installing plate 40.Filtering actuating device 41 comprises the drive mechanism 42 that is fixed on installing plate 40, is positioned at drive mechanism 42 the same sides and is arranged on the side connecting plate 47 of the first guide rail 43 on installing plate 40 and the second guide rail 44, the filtration assembly 45 that can be under the drive of drive mechanism 42 slides along the first guide rail 43 and the second guide rail 44, driving device 46 that drive transmission device 42 rotates and connection for transmission mechanism 42 and filtration assembly 45 by screw (not label).Driving device 46 in this utility model is motor.Described installing plate 40 is provided with opening 400.Described drive mechanism 42 comprises by bolt (not label) and is fixed to the first supporting seat 420 and the second supporting seat 421 on installing plate 40, is located at the actuating device 422 between the first supporting seat 420 and the second supporting seat 421 and is fixed on installing plate 40 and is used for the gripper shoe 423 of support drive device 46 by bolt (not label).Described the first supporting seat 420 has the first accepting hole 4200 of horizontally set, and described the second supporting seat 421 is provided with the second accepting hole 4210 that laterally runs through.
Described actuating device 422 comprises that ball-screw 4220 and group are located on ball-screw 4220 and can make along ball-screw 4220 nut seat 4221 of axially-movable.Described ball-screw 4220 comprises the first axle part 4222 in the first accepting hole 4200 that is housed in the first supporting seat 420, be housed in the second axle part 4223 and the threaded portion 4224 between the first axle part 4222 and the second axle part 4223 in the second accepting hole 4210 of the second supporting seat 421.Described the second axle part 4223 passes the second accepting hole 4210 of the second supporting seat 421, and is connected with driving device 46 by shaft coupling 424.Described nut seat 4221 comprises the screw 4225 that coordinates with the threaded portion 4224 of ball-screw 4220 and is located at contiguous block 4226 on screw 4225.Described screw 4225 roughly is the T-shape setting, and it comprises the head 42250 of tabular setting and the trunk portion 42251 that is connected with head 42250.Described contiguous block 4226 is to be located on trunk portion 42251, and locks together by the head 42250 of screw (not label) with screw 4225.Described screw 4225 also comprises the screwed hole 42252 that runs through head 42250 and trunk portion 42251 settings, can coordinate with the threaded portion 4224 of ball-screw 4220.
Described the first guide rail 43 is between drive mechanism 42 and the second guide rail 44, and which is provided with can be along the first slider guide 430 and second slider guide 431 of guide rail bearing of trend slip.Described the second guide rail 44 is provided with can be along the 3rd slider guide 440 and the 4th slider guide 441 of its slip.The 3rd slider guide 440 of described the second guide rail 44 is corresponding with the first slider guide 430 of the first guide rail 43, and the 4th slider guide 441 is corresponding with the second slider guide 431 of the first guide rail 43.Be equipped with end connecting plate 48 on described the first guide rail 43 and the second guide rail 44.The described end connecting plate 48 of being located on the first guide rail 43 is set up between the first slider guide 430 and the second slider guide 431.The described end connecting plate 48 of being located on the second guide rail 44 is set up between the 3rd slider guide 440 and the 4th slider guide 441.Described the first guide rail 43 and the second guide rail 44 consist of guide assembly.Described the first slider guide 430, the second slider guide 431, the 3rd slider guide 440 and the 4th slider guide 441 consist of the slider guide of guide assembly.
Please consult Fig. 4 to Fig. 6 and Fig. 8 and shown in Figure 10 by emphasis, described filtration assembly 45 opposite ends are separately fixed on the first guide rail 43 and the second guide rail 44 by bolt (not label), and can slide along the first guide rail 43, the second guide rail 44 under the drive of drive mechanism 42.Connecting plate 48 of the described end is between guide assembly and filtration assembly 45, can make the centrifugal force Transmit evenly that filters assembly 45 generation when rotary frame 1 rotation to the slider guide of guide assembly, and then raising filters the job stability of drive mechanism 4, extend the working life that filters drive mechanism 4, guarantee the quality of image.Described filtration assembly 45 comprises the filtration support 450 that is set up between the first guide rail 43 and the second guide rail 44 and is filtering between support 450 and be the filtration 451 of vertical tabular setting.Described filtration 451 is used for absorbing low-energy X ray, reduces the x-ray dose of acceptor 6, and then controls the exposure rate of X ray.
Figure 10 shows that the user mode figure when filtration 451 is on being mounted to rotary frame 1, in the present embodiment, the number of filtration 451 is two, is respectively first and filters the 4510 and second filtration 4511.Described the first filtration 4510 has two and is the first locating hole 4512 that laterally runs through setting.Described the first locating hole 4512 is located at the lengthwise of the first filtration 4510 to the end positions place.Described first filters 4510 also has two the first locating pieces 4513 that upwards protrude out setting.When filtration assembly 45 was set up between the first guide rail 43 and the second guide rail 44, the two ends, top of described the first filtration 4510 were undertaken on respectively on end connecting plate 48, and described two the first locating pieces 4513 all are connected on the sidewall of end connecting plate 48.The part of described the first filtration 4510 between two the first locating pieces 4513 has been recessed to form first groove 4514 from top to bottom downwards.Described the first groove 4514 roughly is the parabolic shape setting.
Described second filters 4511 structure and first, and to filter 4510 structure roughly the same, and its lengthwise respectively has the second locating hole 4515 of the first corresponding setting of locating hole 4512 of and the first filtration 4510 to two ends.Described the second locating hole 4515 is horizontal penetration state and is located in the second filtration 4511.The top of described the second filtration 4511 protrudes out straight up and is provided with two the second locating pieces 4516.When filtration assembly 45 was set up between the first guide rail 43 and the second guide rail 44, the two ends, top of described the second filtration 4511 were undertaken on respectively on end connecting plate 48, and described two the second locating pieces 4516 all are connected on the sidewall of end connecting plate 48.The position of described the second filtration 4511 between two the second locating pieces 4516 is recessed to form one downwards and is the second groove 4517 that parabolic shape arranges.
The vertical dimension of lowermost end to the second filtration 4511 bottom surfaces that described the first groove 4514 lowermost ends and first filter vertical dimension and described the second groove 4517 between 4510 bottom surfaces is identical.The described first difference that filters the 4510 and second filtration 4511 only is: the distance between two the first locating pieces 4513 of described the first filtration 4510 is greater than the distance between two the second locating pieces 4516 of the second filtration 4511, and the described first the first groove 4514 that filters on 4510 filters the extended distance of 4510 length directions greater than the extended distance of the second groove 4517 in described the second filtration 4511 along described the second filtration 4511 length directions along described first.The number of described filtration 451 can be selected according to position to be scanned.The second locating hole 4515 of the first locating hole 4512 of described the first filtration 4510 and the second filtration 4511 consists of the locating hole of filtration 451.The second locating piece 4516 of the first locating piece 4513 of described the first filtration 4510 and the second filtration 4511 consists of the locating piece of filtration 451.The second groove 4517 of the first groove 4514 of described the first filtration 4510, the second filtration 4511 consists of the groove of filtration 451.During normal the use, the second groove 4517 of the first groove 4514 of the first filtration 4510, the second filtration 4511 faces x-ray source 2 and arranges.The thickness of described filtration 451 is identical with the width of the opening 400 of installing plate 40.The second groove 4517 of the first groove 4514 of the opening 400 of described installing plate 40 and the first filtration 4510 or the second filtration 4511 is aimed at, and uses so that the X ray 20 that x-ray source 2 produces passes opening 400 and filtered the 4510 or second filtration 4511 filtrations by first.
Please emphasis consult Fig. 5 and Fig. 7 to shown in Figure 8, on described filtration support 450, group is provided with photoelectricity contact 49, can be arranged on rotary frame 1 on photoswitch (not shown) coordinate, be used for judgement and whether arrive assigned address with the filtration 451 of the filtration assembly 45 of drive mechanism 42 motions.Described filtration support 450 comprises the support 4501 that is vertical shape setting and 4501 groups, support is located at together screw 4502 and nut 4503.Described support 4501 is sandwich-like and will filters 451 and be located between two plate racks 4501.Described support 4501 arranges in the form of sheets, and its lengthwise is provided with the perforation corresponding with the locating hole that filters 451 4504 to two ends, can pass for screw 4502.The two ends, bottom of described support 4501 all bend to extend and are provided with ear 4505.Described ear 4505 is arranged by the support 4501 rear horizontal-extendings of bottom bending, which is provided with a plurality of pilot holes 4506, can coordinate with bolt (not label) and support 4501 is fixed on the slider guide of guide assembly, thereby the filtration 451 that is located between support 4501 is set up between the slider guide of guide assembly.The lengthwise of described support 4501 also is provided with a fixed part 4507 towards extending away from the direction bending that is set up in filtration 451 therebetween to an end, can be connected on side connecting plate 47 by bolt (not label).Described fixed part 4507 be provided in a side of support 4501 near drive mechanism 42(in conjunction with reference to figure 3) an end place, also be provided with a plurality of fixing holes 4508 on it, can supply bolt (not label) to pass.
Described support 4501 numbers are at least 2, and one of them that is positioned at two supports 4501 filtering 451 outer ends is provided with the installation portion 4509 relative with fixed part 4507 along its lengthwise to an end.Described installation portion 4509 is provided with a plurality of installing holes 4520, can coordinate with bolt (not label) to be used for photoelectricity contact 49 is mounted on support 4501.The top of described support 4501 upwards bending is provided with the holding part 4521 that is the arcuation setting.The holding part 4521 of adjacent two stands 4501 arranges in opposite directions, is used for deducting in the bottom of the filtration 451 between two stands 4501, prevents from filtering 451 and filter support 450 because centrifugal action breaks away from when rotary frame 1 rotates.The middle part that the support 4501 of photoelectricity contact 49 is installed also is provided with a loading plate 4522, can coordinate with bolt (not label) for focus being followed the trail of plate 50 to be fixed to filtration assembly 45.Support 4501 in the present embodiment is 4, and two middle supports 4501 all only are provided with perforation 4504 and holding part 4521.Two supports 4501 of outermost end are equipped with ear 4505, pilot hole 4506, fixed part 4507 and fixing hole 4508.Also be provided with installation portion 4509, installing hole 4520 and fixed-focus on one in two supports 4501 of outermost end and follow the trail of the loading plate 4522 of plate 50.Described support 4501 roughly arranges in the form of sheets.
Please consult Fig. 5, Fig. 7 and shown in Figure 9 by emphasis, described side connecting plate 47 coordinates with bolt (not label) and is used for filtering assembly 45 and is connected to drive mechanism 42, make filter assembly 45 under the drive of drive mechanism 42 along the first guide rail 43, the second guide rail 44 slips.Described side connecting plate 47 comprises vertically tabular body 470 and extends by body 470 crown center position bendings the connecting portion 471 that arranges.Described body 470 is provided with the through hole 472 corresponding with the fixing hole 4508 of the support 4501 that filters support 450, can coordinate with bolt (not label), and two supports 4501 that are used for filtering the outermost end of support 450 are mounted on body 470.Described connecting portion 471 is provided with a plurality of circular hole 473, can coordinate with bolt (not label), is used for connecting portion 471 is secured to the contiguous block 4226 of the nut seat 4221 of drive mechanism 42.
During assembling, the first supporting seat 420 and second supporting seat 421 that at first will set up actuating device 422 by bolt (not label) are fixed on installing plate 40.At this moment, the first axle part 4222 of the ball-screw 4220 of actuating device 422 is contained in the first accepting hole 4200 of the first supporting seat 420, and the second axle part 4223 of ball-screw 4220 passes the second accepting hole 4210 of the second supporting seat 421.Then by bolt (not label), gripper shoe 423 is fixed on installing plate 40.Then by shaft coupling 424, the second axle part 4223 that ball-screw 4220 passes the second accepting hole 4210 of the second supporting seat 421 is connected on driving device 46.At this moment, namely completed the installation of the drive mechanism 42 of the filtration actuating device 41 that filters drive mechanism 4.Then be arranged on installing plate 40 by the first guide rail 43 and second guide rail 44 of bolt (not label) with guide assembly, and make the first guide rail 43 of guide assembly and the same side that the second guide rail 44 is positioned at drive mechanism 42.At this moment, the first guide rail 43 and interval parallel with the second guide rail 44 is located on installing plate 40.Then by screw 4502 pass successively perforation 4504, second that the perforation 4504, first that filters support 450 and be provided with the support 4501 of photoelectricity contact 49 filters the first locating hole 4512 of 4510, middle two stands 4501 filter the second locating hole 4515 of 4511 and do not establish photoelectricity contact 49 outermost end support 4501 perforation 4504 and coordinate with nut 4503 and the filtration support 450 that will filter assembly 45 together with 451 groups of filtrations are located at.At this moment, filtering support 451 is sandwich-like and will filters 450 and be located in therebetween.The second groove 4517 of the first groove 4514 of described the first filtration 4510, the second filtration 4511 all is opening down shape and places.The holding part 4521 of described support 4501 is held in the first filtration 4510, second and filters 4511 bottom.
Then at the bottom of filtering the ear 4505, two of support 450 by bolt (not shown) respectively, connecting plate 48 is locked on the slider guide of guide assembly.At this moment, at the bottom of two connecting plate 48 one of them be set up between first slider guide 430 and the second slider guide 431 of the first guide rail 43.Another end connecting plate 48 is set up between the 3rd slider guide 440 and the 4th slider guide 441 of the second guide rail 44.Connecting plate of the described end 48 is located between the slider guide of the ear 4505 of the support 4501 that filters support 450 and guide assembly.First of filtration 451 filters the first locating piece 4513 of 4510, the second locating piece 4516 of the second filtration 4511 all is connected on the sidewall of the end connecting plate 48 on the slider guide that is set up in guide assembly.The first filtration 4510 of described filtration 451 is positioned at two two ends, top, the second filtrations 4511 outside the first locating piece 4513 and is positioned at two two ends, top outside the second locating piece 4516 and all is undertaken on the roof of end connecting plate 48.Namely completed this moment and will filter assembly 45 and be mounted on assembling process on guide assembly.At this moment, can coordinating by screw 4502 and filtration 451 locating hole; The butt of the two ends, top of first filtration the 4510, second filtration 4511 and the roof of end connecting plate 48; The holding part 4521 that filters the support 4501 of support 450 is held in the first filtration 4510 and second and filters 4511 bottom and limit the motion of filtration 451 on above-below direction.And be connected on the sidewall of end connecting plate 48 by filtering 451 locating piece, screw 4502 filters 451 motions on fore-and-aft direction with filtering to limit coordinating of 451 locating hole.And lock together by being positioned at screw 4502 and coordinating of nut 4503 the filtration support 450 that filters 451 both sides the motion that limits on filtration 451 left and right directions.
Then be connected the cooperation of editions 47 body 470 by bolt (not label) with fixed part 4507, the side of two supports 4501 that filter support 450 outermost end and will filter assembly 45 and side connecting plate 47 locks together.Coordinating of contiguous block 4226 of the nut seat 4221 of the connecting portion 471 by bolt (not label) and side connecting plate 47, actuating device 422 and side connecting plate 47 is secured on drive mechanism 42 at last.At this moment, the filtration assembly 45 that is set up between the first guide rail 43 and the second guide rail 44 namely secures on the nut seat 4221 of actuating device 422 of drive mechanism 42 by side connecting plate 47, and can along along with nut seat 4221 moves when ball-screw 4220 rotation of driving device 46 drive transmissions 422, filter 451 demands thereby satisfy patient's different scanning position selection difference.
When drive motors 46 rotated motor 46, the ball-screw 4220 of actuating device 422 can rotate under the drive of motor 46, nut seat 4221 with the cooperation of the threaded portion 4224 of ball-screw 4220 under do axially-movable.Because connecting editions 47 by side, the fixed part 4507 of the filtration support 450 that filters assembly 45 is connected on the contiguous block 4226 of nut seat 4221, the ear 4505 that filters the filtration support 450 of assembly 45 secures on the slider guide of guide assembly by bolt (not label), therefore, filtering assembly 45 can slide along the first guide rail 43, the second guide rail 44 under the drive of the nut seat 4221 of actuating device 422, thereby realizes the different functions that filter 451 switchings when patient is scanned different parts.
X ray CT equipment 100 of the present utility model will be set up on the contiguous block 4226 of nut seat 4221 of actuating device 422 that filtration assembly 45 between the first guide rail 43 and the second guide rail 44 is connected to drive mechanism 42 by side connecting plate 47, and make nut seat 4221 do axially-movable along ball-screw 4220 by ball-screw 4220 rotations of driving device 46 drive transmissions 422, and then drive filtration assembly 45 along the first guide rail 43, the second guide rail 44 slips realize filtering the switching between 451, simple in structure, easy to operate, and can save the installing space of filtration drive mechanism 4 in X ray CT equipment 100.In addition, can make the centrifugal force Transmit evenly of support 4501 generation when rotary frame 1 rotates to the slider guide of guide assembly by the end connecting plate 48 between the slider guide that is located in the ear 4505 that filters assembly 45 and guide assembly, can improve the job stability that filters support 450, extend the service life that filters support 450, guarantee picture quality.
Although this utility model with preferred embodiment openly as above; but it is not to limit this utility model; any those skilled in the art are not within breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection domain of the present utility model should be as the criterion with the scope that this utility model claim is defined.
Claims (36)
1. filtration drive mechanism, be mounted on the frame of medical imaging equipment, can select different filtrations according to the difference at position to be scanned, it comprises installing plate and is mounted on filtration actuating device on installing plate, it is characterized in that: described filtration actuating device comprises the drive mechanism that is mounted on installing plate, the driving device of drive transmission device, be mounted on installing plate and be positioned at the guide assembly of drive mechanism the same side, the filtration assembly that is set up on guide assembly and can be under the drive of drive mechanism slides along guide assembly and will filter assembly and be connected to side connecting plate on drive mechanism.
2. filtration drive mechanism as claimed in claim 1, it is characterized in that: described guide assembly comprises the first guide rail and the second guide rail that is mounted on installing plate and is positioned at described drive mechanism the same side.
3. filtration drive mechanism as claimed in claim 2, it is characterized in that: described filtration assembly is set up between the first guide rail and the second guide rail.
4. filtration drive mechanism as claimed in claim 2 is characterized in that: described drive mechanism comprises the first supporting seat and the second supporting seat that are mounted on installing plate, be located at actuating device between the first supporting seat and the second supporting seat, be mounted on the gripper shoe that is used for the support drive device on installing plate and the shaft coupling of connection for transmission device and driving device.
5. filtration drive mechanism as claimed in claim 4 is characterized in that: described actuating device comprises and is set up in the ball-screw on the first supporting seat and the second supporting seat and is mounted on ball-screw and can makes along ball-screw the nut seat of axially-movable.
6. filtration drive mechanism as claimed in claim 5, it is characterized in that: described filtration assembly is connected on the nut seat of described actuating device by side connecting plate.
7. filtration drive mechanism as claimed in claim 5, it is characterized in that: described the first supporting seat has the first accepting hole of horizontally set, described the second supporting seat is provided with the second accepting hole that laterally runs through, and described ball-screw has the first axle part in the first accepting hole that is contained in the first supporting seat, be contained in the second axle part and the threaded portion between the first axle part and the second axle part in the second accepting hole of the second supporting seat.
8. filtration drive mechanism as claimed in claim 7 is characterized in that: described shaft coupling connects ball-screw and passes the second axle part of the second accepting hole of the second supporting seat to driving device.
9. filtration drive mechanism as claimed in claim 7 is characterized in that: described nut seat comprises the screw that coordinates with the threaded portion of ball-screw and is mounted on contiguous block on screw.
10. filtration drive mechanism as claimed in claim 9, it is characterized in that: described filtration assembly is fixed on the contiguous block of described nut seat by described side connecting plate.
11. filtration drive mechanism as claimed in claim 9 is characterized in that: described screw comprises head and the trunk portion that is connected with head, and described contiguous block is mounted on the trunk portion of described screw by bolt.
12. filtration drive mechanism as claimed in claim 11 is characterized in that: described screw also has the screwed hole that runs through head and trunk portion setting and coordinate with the threaded portion of ball-screw.
13. filtration drive mechanism as claimed in claim 9 is characterized in that: the screw of described nut seat is the T-shape setting.
14. filtration drive mechanism as described in any one in claim 1 to 13 is characterized in that: described side connecting plate comprises vertically tabular body and is extended the connecting portion that arranges by the body top bending.
15. filtration drive mechanism as claimed in claim 14 is characterized in that: the body of described side connecting plate is connected with the filtration assembly by bolt, and the connecting portion of described side connecting plate is connected with drive mechanism by bolt.
16. filtration drive mechanism as claimed in claim 15 is characterized in that: described connecting portion is to be arranged by horizontal-extending after the top middle portion bending of described body.
17. filtration drive mechanism as described in any one in claim 2 to 13 is characterized in that: described filtration assembly comprises and is set up in the filtration support between described the first guide rail and the second guide rail and is located in the filtration that filters between support.
18. filtration drive mechanism as claimed in claim 17 is characterized in that: described filtration support comprise be mounted on the first guide rail with between the second guide rail and a plurality of supports of filtering of sandwiched and the support group is located at together with screw and nut.
19. filtration drive mechanism as claimed in claim 18 is characterized in that: the support of described filtration support is provided with the perforation of passing for screw, and described filtration is provided with locating hole corresponding with the perforation of described support and that supply screw to pass.
20. filtration drive mechanism as claimed in claim 18 is characterized in that: the described two ends, bottom that are positioned at the support that filters outermost end all bend to extend and are provided with ear, and described ear secures to respectively on the first guide rail, the second guide rail by bolt.
21. filtration drive mechanism as claimed in claim 20 is characterized in that: the described lengthwise that is positioned at the close described drive mechanism of support that filters outermost end also bends to extend to an end and is provided with fixed part, and described fixed part secures on described side connecting plate by bolt.
22. filtration drive mechanism as claimed in claim 21 is characterized in that: described fixed part is to be arranged away from described filtration direction horizontal-extending by court after the front end bending of described support.
23. filtration drive mechanism as claimed in claim 22 is characterized in that: described one of them that is arranged in two supports filtering outermost end also is provided with installation portion along its longitudinally one end bending, the corresponding setting of fixed part of described installation portion and this support.
24. filtration drive mechanism as claimed in claim 23 is characterized in that: described filtration actuating device also comprises and is mounted on the photoelectricity contact that filters on assembly, and described photoelectricity contact is to be mounted on the installation portion of described support by bolt.
25. filtration drive mechanism as claimed in claim 24 is characterized in that: the top of described support all upwards bends extends the holding part that is provided with for the described filtration of clasp, and the holding part of described adjacent stent arranges in opposite directions.
26. filtration drive mechanism as claimed in claim 24, it is characterized in that: described group of middle part that is provided with the support of photoelectricity contact also is provided with the loading plate of bending, described filtration actuating device also comprises the focus tracking plate that is mounted on described filtration support, and described focus is followed the trail of plate and is located on described loading plate by the bolt group.
27. filtration drive mechanism as claimed in claim 19 is characterized in that: described filtration has by the top and protrudes out the locating piece of setting and the groove that the position between locating piece is recessed to form by the top downwards.
28. filtration drive mechanism as claimed in claim 27 is characterized in that: the groove of described filtration is the parabolic shape setting.
29. filtration drive mechanism as claimed in claim 28 is characterized in that: the filtration number of described filtration assembly is two, is respectively first and filters and the second filtration, and the support number of described filtration support is four.
30. filtration drive mechanism as claimed in claim 29, it is characterized in that: the locating piece of described filtration comprises that the top by the first filtration extends upward the first locating piece of setting and the second locating piece that is extended upward setting by the second top that filters, the groove of described filtration comprises to be located at the first the first groove that filters and to be located at the second the second groove that filters, the locating hole of described filtration comprises that laterally running through first filters the first locating hole that arranges and laterally run through the second locating hole that the second filtration arranges, and described installing plate is provided with an opening.
31. filtration drive mechanism as claimed in claim 30 is characterized in that: the described first the first groove that filters filters the distance of length direction opening greater than the distance of the described second the second groove that filters along described the second filtration length direction opening along described first.
32. filtration drive mechanism as claimed in claim 27 is characterized in that: described filtration drive mechanism also comprises the end connecting plate that is located between described filtration assembly and described guide assembly, and the locating piece of described filtration is connected on the sidewall of connecting plate of the described end.
33. filtration drive mechanism as claimed in claim 32, it is characterized in that: described the first guide rail has the first slider guide and the second slider guide that is oppositely arranged, described the second guide rail have with the 3rd slider guide of the first corresponding setting of slider guide of the first guide rail and with the 4th slider guide of the second corresponding setting of slider guide of the first guide rail, described support is locked in respectively on the first slider guide, the second slider guide, the 3rd slider guide, the 4th slider guide by bolt.
34. X ray CT equipment, be used for clinical disease diagnosis, it comprise have a rotary frame for the test chamber of acceptor turnover, be mounted on the x-ray source on rotary frame and be mounted on frame and with the detector array that x-ray source is oppositely arranged, it is characterized in that: described X ray CT equipment also comprises the filtration drive mechanism as described in any one in claims 1 to 33 that is mounted on rotary frame.
35. X ray CT equipment as claimed in claim 34 is characterized in that: described X ray CT equipment also comprises the X ray pipe end collimator that is mounted on rotary frame.
36. X ray CT equipment as claimed in claim 35 is characterized in that: described filtration drive mechanism is between x-ray source and X ray pipe end collimator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721578 CN203016974U (en) | 2012-12-24 | 2012-12-24 | X-ray CT (computerized tomography) equipment and filtering and transmitting mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721578 CN203016974U (en) | 2012-12-24 | 2012-12-24 | X-ray CT (computerized tomography) equipment and filtering and transmitting mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203016974U true CN203016974U (en) | 2013-06-26 |
Family
ID=48640997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220721578 Expired - Fee Related CN203016974U (en) | 2012-12-24 | 2012-12-24 | X-ray CT (computerized tomography) equipment and filtering and transmitting mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203016974U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071651A1 (en) * | 2015-10-30 | 2017-05-04 | 上海联影医疗科技有限公司 | Collimator for use in scanning system |
| CN109316199A (en) * | 2018-09-18 | 2019-02-12 | 上海联影医疗科技有限公司 | A kind of collimator filter assemblies, collimator and Medical Devices |
| CN110275471A (en) * | 2019-07-17 | 2019-09-24 | 郑州信大先进技术研究院 | Desktop type industry CT kinetic control system based on NI motion control card |
-
2012
- 2012-12-24 CN CN 201220721578 patent/CN203016974U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071651A1 (en) * | 2015-10-30 | 2017-05-04 | 上海联影医疗科技有限公司 | Collimator for use in scanning system |
| US10799190B2 (en) | 2015-10-30 | 2020-10-13 | Shanghai United Imaging Healthcare Co., Ltd. | Collimator of a scanning system |
| US11457879B2 (en) | 2015-10-30 | 2022-10-04 | Shanghai United Imaging Healthcare Co., Ltd. | Collimator of a scanning system |
| CN109316199A (en) * | 2018-09-18 | 2019-02-12 | 上海联影医疗科技有限公司 | A kind of collimator filter assemblies, collimator and Medical Devices |
| CN110275471A (en) * | 2019-07-17 | 2019-09-24 | 郑州信大先进技术研究院 | Desktop type industry CT kinetic control system based on NI motion control card |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203016974U (en) | X-ray CT (computerized tomography) equipment and filtering and transmitting mechanism thereof | |
| CN102973286B (en) | X-ray imaging device and imaging method thereof | |
| CN103169492B (en) | Radiation tomographic device, checkout gear and spatial resolution changing method | |
| EP2502561B1 (en) | Arc-shaped medical imaging equipment | |
| EP2228011A1 (en) | Rail system and x-ray imaging apparatus using the same | |
| JP2020146557A (en) | Pivotal paddle device for mammography/tomosynthesis x-ray system | |
| US9439614B2 (en) | X-ray generation module, X-ray imaging apparatus, and X-ray imaging method | |
| CN105559812B (en) | Breast X-ray system and its collimator | |
| CN1259025C (en) | X rays photoing system and method for controlling same | |
| CN212489932U (en) | CT examination device | |
| CN202950664U (en) | X-ray imaging unit | |
| CN201868118U (en) | X-ray collimator | |
| CN100430021C (en) | Medical imaging device having means for rendering the detector orientation and the display orientation essentially equal | |
| CN102467985B (en) | X-ray collimator | |
| CN101287520A (en) | Stand for holding a radiation detector for a radiation therapy device | |
| JP2009018162A (en) | X-ray apparatus | |
| KR101105624B1 (en) | Diagnosis apparatus with automatic position adjustable x-ray detector | |
| CN2768828Y (en) | Gamma-ray therapeutical equipment | |
| CN100420496C (en) | Gamma ray therapeutic device | |
| CN113924043A (en) | CT imaging apparatus | |
| CN213276139U (en) | Image diagnosis contrast equipment | |
| CN211175980U (en) | Adjustable fixed stay frame of supervisory equipment | |
| CN111991014A (en) | C-shaped arm and X-ray machine | |
| CN204133487U (en) | Column, lowering or hoisting gear and X-ray shooting system | |
| CN214549420U (en) | Automatic radiation protection device for radiographic inspection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131224 |