CN203369913U - CT machine upper slicing device with alterable ray visual field - Google Patents
CT machine upper slicing device with alterable ray visual field Download PDFInfo
- Publication number
- CN203369913U CN203369913U CN201320416681.0U CN201320416681U CN203369913U CN 203369913 U CN203369913 U CN 203369913U CN 201320416681 U CN201320416681 U CN 201320416681U CN 203369913 U CN203369913 U CN 203369913U
- Authority
- CN
- China
- Prior art keywords
- visual field
- slicing device
- flashboard
- machine
- variable radial
- 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 CT machine upper slicing device with an alterable ray visual field. The CT machine upper slicing device with the alterable ray visual field comprises a ray box, a longitudinal collimation mechanism and a base cover provided with a horizontal collimation mechanism, wherein a closed box body is formed by the base cover provided with the horizontal collimation mechanism and the ray box, and the longitudinal collimation mechanism is fixed in the closed box body. According to the CT machine upper slicing device with the alterable ray visual field, the ray view field can be adjusted according to the check position of a patient, unnecessary radiation is reduced on the premise that normal check of the patient is guaranteed, the absorbed dose of the patient is reduced, and image noise is lowered; when the ray visual field is adjusted to be smallest, the amount of leaked rays during bulb tube preheating can be greatly reduced; in addition, the absorbed dose of the patient can be further reduced due to the alterable and asymmetrical ray visual field design.
Description
Technical field
This utility model relates to the tomoscan medical instruments field, more specifically, relates to slicing device on the variable radial visual field for a kind of CT machine.
Background technology
Computer tomography (Computed Tomography) is called for short CT, is extensively arrived medical domain, and the CT machine is in scanning process, and in order to reduce the impact of scattered rays, the CT machine adopts upper slicing device and inferior section device usually.
On existing CT machine, slicing device only has vertical collimation mechanism, laterally only has a permanent opening, when being patient and checking, no matter check any position, laterally the ray visual field immobilizes, and patient understands the unnecessary x radiation x of receiving unit, causes patient to receive dosage large; Simultaneously, the ray utilization rate is low, and useless scattered rays is many, and picture noise is large; During warm up, it is large that ray is revealed dosage.
The utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of slicing device on the variable radial visual field for the CT machine with vertical collimation mechanism and transversal collimation mechanism, to solve the changeless problem in the horizontal ray of the slicing device visual field on existing CT machine.
Slicing device on the variable radial visual field for CT machine that this utility model provides, comprise ray casing, vertical collimation mechanism and be provided with the end cover of transversal collimation mechanism, and the end cover that is provided with transversal collimation mechanism forms a closed box with the ray casing; Vertically collimation mechanism is fixed on closed box inside.
In addition, preferred structure is, the end cover that is provided with transversal collimation mechanism comprises end cover body, drive motors, two synchronous pulleys, encoder seat, pressing plate, motor cabinet, Timing Belt, spring, two guide rails, flashboard seat, two limit bundle flashboards and encoder; Wherein, two guide rail parallels are fixed on end cover body, on two guide rails, are respectively arranged with guide rail slide block, and two limit bundle flashboards are connected with guide rail slide block respectively by the flashboard seat; Position on end cover body between corresponding two guide rails offers the strip opening; Motor cabinet and encoder seat are fixed on end cover body, and drive motors is fixed on motor cabinet, and encoder is fixed on the encoder seat; Timing Belt is set in parallel in a side of two guide rails, and with two synchronous pulley engaged transmission, one in two synchronous pulleys is connected with drive motors, another is connected with encoder; The Timing Belt upper side edge is connected with the flashboard seat of a limit bundle flashboard by pressing plate, and lower side is connected with the flashboard seat of another limit bundle flashboard by pressing plate.
In addition, preferably structure is, Timing Belt is a single Timing Belt, and the two ends of single Timing Belt are connected to form ring-type by spring and pressing plate.
Moreover preferred structure is that two limit bundle flashboards adopt tungsten alloy, tantalum alloy or molybdenum alloy material to make; And the thickness of two limit bundle flashboards is 1.5mm～3mm.
In addition, preferred structure is that end cover body adopts tungsten alloy, tantalum alloy or molybdenum alloy material, panel beating bending and molding; And the thickness of end cover body is 1.5mm～3mm.
In addition, two limit bundle flashboards are set to about vertical symmetrical center line symmetry, and asymmetric about the lateral symmetry centrage.
In addition, preferred structure is that vertically collimation mechanism comprises fixing arc flashboard.
Moreover preferred structure is that vertically collimation mechanism comprises the arc flashboard vertically moved; Be connected with actuating device below the arc flashboard vertically moved, in a side of actuating device, be connected with drive motors, opposite side is connected with encoder.
In addition, preferred structure is that actuating device is lead screw gear or synchronous belt transmission device.
Moreover preferred structure is that drive motors is with the direct current generator of decelerator or motor.
With respect to slicing device on existing CT machine, the CT machine that this utility model the provides check point that on the variable radial visual field, slicing device can be different according to patient, adjust ray visual field size, under the prerequisite that guarantees patient's normal inspection, reduce unnecessary radiation, reduce patient and receive dosage, picture noise is little; Minimum is adjusted to in the ray visual field, the dosage that in the time of can also greatly reducing warm up, ray is revealed; By variable asymmetric visual field design, can also further reduce patient and receive dosage in addition.
The accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, and, along with understanding more comprehensively of the present utility model, other purpose of the present utility model and result will be understood and easy to understand more.In the accompanying drawings:
Fig. 1 shows the structural upright schematic diagram with slicing device on the variable radial visual field according to CT machine of the present utility model;
Fig. 2 shows vertical collimation mechanism schematic diagram with slicing device on the variable radial visual field according to CT machine of the present utility model;
Fig. 3 shows the transversal collimation structural scheme of mechanism with slicing device on the variable radial visual field according to CT machine of the present utility model;
Fig. 4 shows the front view with the end cover of slicing device on the variable radial visual field according to CT machine of the present utility model;
Fig. 5 shows the top view with the end cover of slicing device on the variable radial visual field according to CT machine of the present utility model.
In institute's drawings attached, identical label is indicated similar or corresponding feature or function.
Reference numeral wherein comprises: ray casing 1, vertical collimation mechanism 2, end cover 3, drive motors 4～5, synchronous pulley 6～7, encoder seat 8, pressing plate 9～11, motor cabinet 12, Timing Belt 13, spring 14, guide rail 15～16, flashboard seat 17～20, limit bundle flashboard 21～22, encoder 23～24, guide rail slide block 25～28, end cover body 29, arc flashboard 30.
The specific embodiment
Below with reference to accompanying drawing, specific embodiment of the utility model is described in detail.
Fig. 1, Fig. 2 and Fig. 3 show respectively according to the structural upright schematic diagram of slicing device on the variable radial visual field, vertical collimation mechanism schematic diagram and transversal collimation structural scheme of mechanism for CT machine of the present utility model.
As shown in Figure 1, Figure 2 and Figure 3, the CT machine that this utility model provides comprises ray casing 1, vertical collimation mechanism 2 and end cover 3 with slicing device on the variable radial visual field, and ray casing 1 is open structure, and the two sides of ray casing 1 are right-angled trapezium; End cover 3 comprises end cover body 29, end cover body 29 adopts the materials such as tungsten alloy, tantalum alloy, molybdenum alloy, the panel beating bending molding process, and the thickness of end cover body 29 is 1.5mm～3mm, end cover body 29 forms a closed box with ray casing 1, and vertically collimation mechanism 2 is fixed on closed box inside.
Vertically collimation mechanism comprises actuating device 30, actuating device 30 is fixed on the bottom surface of ray casing 1, a side at actuating device is connected with drive motors 4, opposite side is connected with encoder 23, connect the arc flashboard 30 that can vertically move above actuating device, therefore, drive motors 4 drives actuating device and vertically moves, actuating device drives arc flashboard 30 and vertically moves, and adjusts vertical ray field range.
Wherein, actuating device is synchronous belt transmission device or is lead screw gear.
Wherein, vertically collimation mechanism also can be fixing arc flashboard.
The one side that end cover body 29 forms closed box is provided with transversal collimation mechanism, and transversal collimation mechanism comprises drive motors 5, synchronous pulley 6～7, pressing plate 9～11, Timing Belt 13, spring 14, flashboard seat 17～20, limit bundle flashboard 21～22 and encoder 24.
What guide rail 15 was parallel with guide rail 16 is arranged on end cover body 29, on end cover body 29 corresponding guide rails 15 and guide rail 16 between position offer a strip opening; Be provided with guide rail slide block 25, guide rail slide block 26 on guide rail 15, be provided with guide rail slide block 27, guide rail slide block 28 on guide rail 16.
The two ends of end cover body 29 bending places are fixed with encoder seat 8 and motor cabinet 12, and drive motors 5 is fixed on motor cabinet 12, and encoder 24 is fixed on encoder seat 8.
Timing Belt 13 is a single ring-type Timing Belt, and it is set in parallel in a side of guide rail 15, and with synchronous pulley 6 and synchronous pulley 7 engaged transmission, synchronous pulley 6 is connected with drive motors 5, synchronous pulley 7 is connected with encoder 24; Timing Belt 13 upper side edges are connected with the flashboard seat 17 of limit bundle flashboard 21 by pressing plate 11, and Timing Belt 13 lower sides are connected with the flashboard seat 19 of limit bundle flashboard 22 by pressing plate 10.
When drive motors 5 drives synchronous pulley 6 to clockwise rotate, the upper side edge of Timing Belt 13 and lower side start to move dorsad, by flashboard seat 17 and flashboard seat 19, drive limit bundle flashboard 21 and move dorsad with limit bundle flashboard 22, and it is large that the ray field range becomes; When drive motors 5 drives synchronous pulley 6 to rotate counterclockwise, the upper side edge of Timing Belt 13 and lower side start to move in opposite directions, by flashboard seat 17 and flashboard seat 19, driving limit bundle flashboard 21 moves in opposite directions with limit bundle flashboard 22, the ray field range diminishes, form closed loop control by encoder 24 feedback signals, realize the size high accuracy adjustment of the ray visual field.
Wherein, limit bundle flashboard 21 and limit bundle flashboard 22 adopt the materials such as tungsten alloy, tantalum alloy, molybdenum alloy to make, and the thickness of limit bundle flashboard 21 and limit bundle flashboard 22 is 1.5mm～3mm.
In order to reduce Timing Belt 13 wearing and tearing, set up pressing plate 9 at the lower side of Timing Belt 13, be connected with spring 14 between pressing plate 9 and pressing plate 10.
In order accurately to control the rotation of drive motors 5, thereby precisely control the movement of limitting bundle flashboard 21 and limit bundle flashboard 22, drive motors 5 is direct current generator or the motor with decelerator.
Fig. 4 shows the front view with the end cover of slicing device on the variable radial visual field according to CT machine of the present utility model.
As shown in Figure 4, at end cover body 29, by the position of the corresponding motor cabinet in the two ends of dogleg section and encoder seat, be provided with opening, stretch out for being fixed on the drive motors 5 on motor cabinet 12 and the encoder 24 be fixed on encoder seat 8.
Two ends at end cover body 29 fixed lateral collimation mechanism another sides are provided with two handles, two handles respectively with encoder 24 and drive motors 5 on same straight line.
Fig. 5 shows the top view with the end cover of slicing device on the variable radial visual field according to CT machine of the present utility model.
As shown in Figure 5, limit bundle flashboard 21 and limit bundle flashboard 22 are set to about vertical symmetrical center line symmetry, and asymmetric about the lateral symmetry centrage, by variable asymmetric visual field design, can further reduce patient and receive dosage.
One side of the close Timing Belt 13 of limit bundle flashboard 21 connects flashboard seat 17, be provided with groove on flashboard seat 17, therefore guide rail slide block 25 is entrenched in the groove of flashboard seat 17, and limit bundle flashboard 21 is connected with guide rail slide block 25, the in like manner limit bundle flashboard connection corresponding with it of other three guide rail slide blocks.
Accompanying drawing has been described according to slicing device on the variable radial visual field for the CT machine the utility model proposes in the mode of example above with reference to.But, it will be appreciated by those skilled in the art that the slicing device on the variable radial visual field for the CT machine proposed for above-mentioned this utility model, can also on the basis that does not break away from this utility model content, make various improvement.Therefore, protection domain of the present utility model should be determined by the content of appending claims.
Claims (10)
1. slicing device on the variable radial visual field for a CT machine comprises: ray casing and vertical collimation mechanism, it is characterized in that,
Described CT machine also comprises the end cover that is provided with transversal collimation mechanism with slicing device on the variable radial visual field; Wherein,
The described end cover that is provided with transversal collimation mechanism forms a closed box with described ray casing;
Described vertical collimation mechanism is fixed on described closed box inside.
2. slicing device on the variable radial visual field for CT machine as claimed in claim 1, is characterized in that,
The described end cover that is provided with transversal collimation mechanism comprises end cover body, drive motors, two synchronous pulleys, encoder seat, pressing plate, motor cabinet, Timing Belt, spring, two guide rails, flashboard seat, two limit bundle flashboards and encoder; Wherein,
Described two guide rail parallels are fixed on cover body of the described end, on described two guide rails, are respectively arranged with guide rail slide block, and described two limit bundle flashboards are connected with described guide rail slide block respectively by described flashboard seat; Position on cover body of the described end between corresponding described two guide rails offers the strip opening;
Described motor cabinet and described encoder seat are fixed on cover body of the described end, and described drive motors is fixed on described motor cabinet, and described encoder is fixed on described encoder seat;
Described Timing Belt is set in parallel in a side of described two guide rails, and with described two synchronous pulley engaged transmission, one in described two synchronous pulleys is connected with described drive motors, another is connected with described encoder;
Described Timing Belt upper side edge is connected with the flashboard seat of a described limit bundle flashboard by described pressing plate, and lower side is connected with the flashboard seat of described another limit bundle flashboard by described pressing plate.
3. slicing device on the variable radial visual field for CT machine as claimed in claim 2, is characterized in that,
Described Timing Belt is a single Timing Belt; And
The two ends of described single Timing Belt are connected to form ring-type by described spring and described pressing plate.
4. slicing device on the variable radial visual field for CT machine as claimed in claim 2, is characterized in that,
Described two limit bundle flashboards adopt tungsten alloy, tantalum alloy or molybdenum alloy material to make; And,
The thickness of described two limit bundle flashboards is 1.5mm～3mm.
5. slicing device on the variable radial visual field for CT machine as claimed in claim 2, is characterized in that,
Cover body of the described end adopts tungsten alloy, tantalum alloy or molybdenum alloy material, panel beating bending and molding; And,
The thickness of cover body of the described end is 1.5mm～3mm.
6. slicing device on the variable radial visual field for CT machine as claimed in claim 2, is characterized in that,
Described two limit bundle flashboards are set to about vertical symmetrical center line symmetry, and asymmetric about the lateral symmetry centrage.
7. slicing device on the variable radial visual field for CT machine as claimed in claim 1, is characterized in that,
Described vertical collimation mechanism comprises fixing arc flashboard.
8. slicing device on the variable radial visual field for CT machine as claimed in claim 1, is characterized in that,
Described vertical collimation mechanism comprises the arc flashboard vertically moved;
Be connected with actuating device below the described arc flashboard vertically moved, in a side of described actuating device, be connected with drive motors, opposite side is connected with encoder.
9. slicing device on the variable radial visual field for CT machine as claimed in claim 8, is characterized in that,
Described actuating device is lead screw gear or synchronous belt transmission device.
10. slicing device on the variable radial visual field for CT machine as described as any one in claim 2～6, is characterized in that,
Described drive motors is with the direct current generator of decelerator or motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416681.0U CN203369913U (en) | 2013-07-12 | 2013-07-12 | CT machine upper slicing device with alterable ray visual field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416681.0U CN203369913U (en) | 2013-07-12 | 2013-07-12 | CT machine upper slicing device with alterable ray visual field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203369913U true CN203369913U (en) | 2014-01-01 |
Family
ID=49832471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320416681.0U Expired - Fee Related CN203369913U (en) | 2013-07-12 | 2013-07-12 | CT machine upper slicing device with alterable ray visual field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203369913U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948396A (en) * | 2014-05-21 | 2014-07-30 | 江苏中惠医疗科技股份有限公司 | CT (computed tomography) beam-defining clipper |
| CN106611624A (en) * | 2017-01-25 | 2017-05-03 | 明峰医疗系统股份有限公司 | CT pre-collimator |
| CN106725587A (en) * | 2017-01-25 | 2017-05-31 | 深圳市通用激光科技有限公司 | Ray interval device |
-
2013
- 2013-07-12 CN CN201320416681.0U patent/CN203369913U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948396A (en) * | 2014-05-21 | 2014-07-30 | 江苏中惠医疗科技股份有限公司 | CT (computed tomography) beam-defining clipper |
| CN106611624A (en) * | 2017-01-25 | 2017-05-03 | 明峰医疗系统股份有限公司 | CT pre-collimator |
| CN106725587A (en) * | 2017-01-25 | 2017-05-31 | 深圳市通用激光科技有限公司 | Ray interval device |
| CN106611624B (en) * | 2017-01-25 | 2018-12-25 | 明峰医疗系统股份有限公司 | A kind of preceding collimator of CT |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203369913U (en) | CT machine upper slicing device with alterable ray visual field | |
| CN103337272B (en) | X-ray collimator and collimation thereof crack width adjustment method | |
| ITMI20090318A1 (en) | RADIOLOGICAL EQUIPMENT | |
| CN209421966U (en) | A kind of image department children's torso positioning device | |
| CN107720261B (en) | A kind of rubber strip pinch mechanism | |
| CN104490137B (en) | Adjusting mechanism of furniture drawer | |
| CN203388876U (en) | Bedside sliding rail unit for angiography machine on-the-bed X-ray protection device | |
| CN203875864U (en) | Translation mechanism with two racks | |
| CN208963466U (en) | Novel wet tissue packing machine side seal mechanism | |
| CN103373498B (en) | A kind of novel tea packaging facilities puts a bag groove | |
| CN103271747A (en) | Section device on CT machine and switchover regulation method | |
| CN209048500U (en) | It is a kind of for the full automatic nursing bed of image department CT Room | |
| CN206516362U (en) | Lead screen elevating folding mechanism for pet X-ray imaging device | |
| CN209363450U (en) | A kind of fast-positioning device of automobile die | |
| CN209107384U (en) | A kind of CT collimator piece cutting structure and CT scan system | |
| CN103462624A (en) | X-ray generator beam limiting device and blade driving device thereof | |
| CN210321127U (en) | Strontium ferrite permanent magnet element presintering equipment | |
| CN204210029U (en) | Paper feeding positioning guide mechanism | |
| CN215430042U (en) | Multi-wavelength UV-LED curing light source | |
| CN203710037U (en) | Ray beam defining device for oral cavity CT scanning | |
| CN207579209U (en) | A kind of retractable upper glue roller in paper bag bag bottom | |
| CN205177417U (en) | Prevent plumbous glass device of radiation protection | |
| CN106782727B (en) | Lead screen elevating folding mechanism for pet X-ray imaging device | |
| CN201316271Y (en) | Spot film frame transmission mechanism for X-ray gastrointestinal diagnosis machine | |
| CN204674913U (en) | One wears the adjustable for height Chuan Mo mechanism of film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PHILIPS (CHINA) INVESTMENT CO., LTD. Effective date: 20140219 Owner name: DONGRUAN MEDICAL SYSTEMS CO., LTD., SHENYANG Free format text: FORMER OWNER: DONGRUAN PHILIPS MEDICAL EQUIPMENT AND SYSTEM CO., LTD. Effective date: 20140219 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140219 Address after: Hunnan New Century Road 110179 Shenyang city of Liaoning Province, No. 16 Patentee after: SHENYANG NEUSOFT MEDICAL SYSTEMS Co.,Ltd. Patentee after: Philips (China) Investment Co.,Ltd. Address before: Hunnan rookie street Shenyang city Liaoning province 110179 No. 2 East Software Park Patentee before: Philips and Neusoft Medical System Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 110179 No. 177-1 Innovation Road, Hunnan District, Shenyang City, Liaoning Province Co-patentee after: Philips (China) Investment Co.,Ltd. Patentee after: Shenyang Neusoft Medical Systems Co.,Ltd. Address before: Hunnan New Century Road 110179 Shenyang city of Liaoning Province, No. 16 Co-patentee before: Philips (China) Investment Co.,Ltd. Patentee before: SHENYANG NEUSOFT MEDICAL SYSTEMS Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |