CN205234517U - Device of cutting into slices on CT machine - Google Patents
Device of cutting into slices on CT machine Download PDFInfo
- Publication number
- CN205234517U CN205234517U CN201520995447.7U CN201520995447U CN205234517U CN 205234517 U CN205234517 U CN 205234517U CN 201520995447 U CN201520995447 U CN 201520995447U CN 205234517 U CN205234517 U CN 205234517U
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- machine
- gates
- slicing device
- camshaft
- drive
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Abstract
The utility model relates to medical equipment supporting device specifically be a device of cutting into slices on CT machine, solve the section bed thickness adjust, trail the general X -rays focus and in whole scanning is wild etc. The bed thickness scheduling problem of cutting into slices. The device includes two sets of the same mechanisms of individual drive, and every set of mechanism mainly includes radial gate, drive radial gate reciprocating motion's camshaft, the position detecting device who is used for detection mechanism to move, and two sets of corresponding installations of mechanism make the radial gate of every set of mechanism set up relatively, form the section gap between the radial gate. The utility model discloses a step motor driving cam axle drives radial gate and is reciprocating motion, and cam mechanism is as drive mechanism to directly not forming the section bed thickness, but coming the adjustment through drive radial gate and go up sliced aperture and position, this kind of regulation can be gone on simultaneously, and the position of realizing bed thickness and layer is automatic adjustment wantonly as required, can trail the change of general X -rays focus in the course of the work of CT machine.
Description
Technical field
The utility model relates to medicine equipment corollary apparatus, is specially a kind of CT machine and uses slicing device.
Background technology
CT machine is computer x line tomograph, and CT can check all organic diseases, especially to densityThe organic disease that difference is large can check out and make etiologic diagnosis. CT machine is in scanning process, in order to be sweptRetouch and the required X ray bed thickness of image reconstruction, reduce the impact of scattered rays, general upper slice systems, the lower slice systems of adopting, forAdapt to different scanning bed thickness, need slice width can be as required continuously or stepping switch, and require section fromBody good stability.
On common CT machine, the achieved slice thickness of slicing device is fixed, and (for example 1,2,3,5,7mm etc.), noCan arbitrarily regulate, can not realize electrodeless continuous setup bed thickness; In addition, there are some CT machines can not adapt to x ray in scanning processThe variation of focal position, can not realize the function of tracking focus, and bed thickness is about ray plane symmetry, and the position of bed thickness is notAdjustable; Also slicing device on some CT machine, in principle, can not ensure that x ray is at whole scanner field inner-layer thickUniformity, the bed thickness section such as can not realize, and occurs the trend that bed thickness is gradually changed to center by edge.
Utility model content
The purpose of this utility model is to provide a kind of CT machine to use slicing device, can solve slice thickness and regulate, follows the tracks of xRadiation and in whole scanner field etc. the problems such as bed thickness section.
The technical solution of the utility model is:
A kind of CT machine is used slicing device, and this device comprises the two identical mechanisms of cover of drive, and Mei Tao mechanism is mainComprise gates of segmental shape, the reciprocating camshaft of drive arc shape gate, position detecting device for detection of mechanism kinematic, two coversThe corresponding installation of mechanism, the gates of segmental shape of Shi Meitao mechanism is oppositely arranged, and forms section gap between gates of segmental shape.
Described CT machine is used slicing device, and gates of segmental shape is provided with roller, protruding by spring and camshaft of rollerWheel connects.
Described CT machine is used slicing device, and gates of segmental shape is joined by connector and line slideway or linear bearing slipClose.
Described CT machine is used slicing device, and camshaft is connected with motor by shaft coupling.
Described CT machine is used slicing device, and motor is stepper motor or servomotor.
Described CT machine is used slicing device, position detecting device employing rotary encoder or magnetic railings ruler, grating scale, rotationEncoder is installed on camshaft, and the read head of magnetic railings ruler or grating scale is arranged on gates of segmental shape, the blade of magnetic railings ruler, grating scaleBe arranged on the standing part of slicing device.
Compared with prior art, advantage of the present utility model and beneficial effect are:
1, the utility model adopts stepper motor or driven by servomotor camshaft to drive gates of segmental shape to move reciprocatingly, protrudingWheel mechanism, as transmission mechanism, does not directly form slice thickness, but adjusts opening of upper section by drive arc shape gateDegree and position, this adjusting can be carried out simultaneously, realizes the position of bed thickness and layer and at random automatically adjusts as required, can follow the tracks ofCT machine is the variation of x radiation in the course of the work.
2, the shape of the utility model gate can be done camber as required, and slice thickness is by cutting between gates of segmental shapeSheet gap forms, and can realize the uniformity at whole scanner field inner-layer thick, therefore can reduce or eliminate because x radiation becomesChange and the impact of layer thickness differences on image generation, improve ray utilization rate, reduce the roentgen dose X that patient affected by inspection accepts,And cam and gate processing technology are good.
3, the utility model Liang Tao mechanism moves back and forth and is independent separately, can realize electrodeless variation and the layer of slice thicknessThe variation of position.
4, the utility model is mainly used in single or multiple lift CT Scanner, simultaneously can also be used for controlling other rays orLight beam.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 (a)-(b) is the utility model kinematic sketch of mechanism; Wherein, Fig. 2 (a) is flat for ray source focus is positioned at centerFace, Fig. 2 (b) is offset for mechanism follows the tracks of ray source focus.
In figure, 1 first motor; 2 first shaft couplings; 3 first camshafts; 4 primary importance checkout gears; 5 first arc gatesDoor; 6 first line slideways; 7 first rollers; 8 first springs; 9 first cams; 10 section gaps; 1 ' the second motor; 2 ' the secondAxial organ; 3 ' the second camshafts; 4 ' second place checkout gear; 5 ' the second gates of segmental shapes; 6 ' the second line slideways; 7 ' the second rollSon; 8 ' the second springs; 9 ' the second cams; O ray source focus; M desired center plane.
Detailed description of the invention
Shown in (a) as shown in Figure 1, Figure 2-(b), the utility model is made up of the identical mechanism of two covers, Mei Tao mechanism drive.Wherein:
A set of mechanism comprises: the first motor 1, the first shaft coupling 2, the first camshaft 3, primary importance checkout gear 4, firstGates of segmental shape 5, the first line slideway 6, the first roller 7, the first spring 8, the first cam 9, adopt the first motor 1 (stepper motorOr servomotor) drive the other end of the first camshaft 3, the first camshafts 3 that primary importance checkout gear 4 (the first motors 1 are installedConnect by the first shaft coupling 2 with the first camshaft 3), the first cam 9 on the first camshaft 3 is by the first spring 8 and firstThe first roller 7 touch scrollings on gates of segmental shape 5, drive the first gates of segmental shape 5 to move reciprocatingly along the first line slideway 6.
Another set of mechanism is identical with said mechanism, comprising: the second motor 1 ', the second shaft coupling 2 ', the second camshaft 3 ',Two position detecting devices 4 ', the second gates of segmental shape 5 ', the second line slideway 6 ', the second roller 7 ', the second spring 8 ', the second cam9 ', adopt the second motor 1 ' (stepper motor or servomotor) drive the second camshaft 3 ', the second camshaft 3 ' other end peaceDress second place checkout gear 4 ' (the second motor 1 ' with the second camshaft 3 ' by the second shaft coupling 2 ' connect), the second camshaft3 ' on the second cam 9 ' by the second spring 8 ' with the second gates of segmental shape 5 ' on second roller 7 ' touch scrolling, drive secondGates of segmental shape 5 ' along the second line slideway 6 ' move reciprocatingly.
The corresponding installation of above-mentioned Liang Tao mechanism, the first gates of segmental shape 5 of along continuous straight runs motion and the second gates of segmental shape 5 'Correspondence, between the two form section gap 10 (being slice thickness), the first gates of segmental shape 5 by connector along the first line slideway6 slide, and the second gates of segmental shape 5 ' by connector is along the second line slideway 6 ' slip, and the motor of Liang Tao mechanism independently carries out separatelyForward or reverse, make the first gates of segmental shape 5 and the second gates of segmental shape 5 ' position change, thereby jointly form requiredSlice thickness and layer position, this adjusting can be carried out simultaneously, realize bed thickness and layer position adjust at any time; Inclined to one side according to focusMove the variation of rule and quantity of X-rays X, drive respectively Liang Tao mechanism automatically to adjust the position of gates of segmental shape, jointly realize in gapThe variation of heart position i.e. the variation of the position of layer, changes the range of exposures of ray, thereby reduces or eliminate because x radiation becomesChange the impact that image is produced.
In the utility model, motor can adopt servomotor or stepper motor; The effect of guide rail is to ensure gates of segmental shapeHorizontal direction moves along a straight line and left and right skew does not occur in process, and line slideway can substitute with linear bearing; Position probing dressPut and can adopt rotary encoder, be installed on camshaft, rotary encoder can detect cam angle to be changed; Position probing dressPut and can also adopt magnetic railings ruler, grating scale etc., the read head of magnetic railings ruler, grating scale is arranged on gates of segmental shape, magnetic railings ruler, grating scaleBlade be arranged on the standing part section casing of slicing device arranged outside (as: upper) of slicing device, magnetic railings ruler, gratingChi can detect gates of segmental shape change in location. Gates of segmental shape (containing skeleton) need to be by the larger material system of attenuation coefficientMake, as: lead, molybdenum, tungsten, tantalum or its alloy sheets etc.
As shown in Fig. 2 (a), the utility model mechanism focus is positioned at the kinematic sketch of central plane, and now Liang Tao mechanism is eachSelf-driven gates of segmental shape, the common gap forming is that bed thickness is about central plane symmetry. As shown in Fig. 2 (b), the utility model machineThe kinematic sketch of structure tracking focus skew, now Liang Tao mechanism drive arc shape gate separately, the common gap forming is that bed thickness closesAsymmetric in central plane, the skew of tracking focus. In Fig. 2 (a)-Fig. 2 (b), O is ray source focus, and M is that desired center is flatFace.
Claims (6)
1. CT machine is used a slicing device, it is characterized in that: this device comprises the two identical mechanisms of cover of drive, every coverMechanism mainly comprises gates of segmental shape, the reciprocating camshaft of drive arc shape gate, position probing for detection of mechanism kinematicDevice, the corresponding installation of Liang Tao mechanism, the gates of segmental shape of Shi Meitao mechanism is oppositely arranged, and forms section seam between gates of segmental shapeGap.
2. use slicing device according to CT machine claimed in claim 1, it is characterized in that: gates of segmental shape is provided with roller rollerBe connected with the cam on camshaft by spring.
3. use slicing device according to CT machine claimed in claim 1, it is characterized in that: gates of segmental shape is by connector and straight lineGuide rail or linear bearing are slidably matched.
4. use slicing device according to CT machine claimed in claim 1, it is characterized in that: camshaft is connected with electricity by shaft couplingMachine.
5. use slicing device according to CT machine claimed in claim 4, it is characterized in that: motor is stepper motor or servo electricityMachine.
6. use slicing device according to CT machine claimed in claim 1, it is characterized in that: position detecting device adopts rotary codingDevice or magnetic railings ruler, grating scale, rotary encoder is installed on camshaft, and the read head of magnetic railings ruler or grating scale is arranged on gates of segmental shapeUpper, the blade of magnetic railings ruler, grating scale is arranged on the standing part of slicing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520995447.7U CN205234517U (en) | 2015-12-03 | 2015-12-03 | Device of cutting into slices on CT machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520995447.7U CN205234517U (en) | 2015-12-03 | 2015-12-03 | Device of cutting into slices on CT machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205234517U true CN205234517U (en) | 2016-05-18 |
Family
ID=55933608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520995447.7U Expired - Fee Related CN205234517U (en) | 2015-12-03 | 2015-12-03 | Device of cutting into slices on CT machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205234517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110537931A (en) * | 2019-10-10 | 2019-12-06 | 明峰医疗系统股份有限公司 | Slotting segmented stepless adjustable collimator |
-
2015
- 2015-12-03 CN CN201520995447.7U patent/CN205234517U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110537931A (en) * | 2019-10-10 | 2019-12-06 | 明峰医疗系统股份有限公司 | Slotting segmented stepless adjustable collimator |
| CN110537931B (en) * | 2019-10-10 | 2024-06-25 | 明峰医疗系统股份有限公司 | Slit segmentation stepless adjustable collimator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20161203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |