CN105288868B - A kind of radiotherapy simulator beam-defining clipper - Google Patents
A kind of radiotherapy simulator beam-defining clipper Download PDFInfo
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- CN105288868B CN105288868B CN201510695750.XA CN201510695750A CN105288868B CN 105288868 B CN105288868 B CN 105288868B CN 201510695750 A CN201510695750 A CN 201510695750A CN 105288868 B CN105288868 B CN 105288868B
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Abstract
The present invention discloses a kind of radiotherapy simulator beam-defining clipper, including fixed frame, guiding mechanism, driving mechanism, Xian Shu mechanism and position-limit mechanism；Guiding mechanism includes front and back direction guiding rail and left and right direction guiding rail；Driving mechanism includes front and back to driving mechanism and controls to driving mechanism；Xian Shu mechanism includes front and back to limit beam plate and controls to limit beam plate；Position-limit mechanism includes front and back to limited block and controls to limited block；Front and back direction guiding rail and front and back are fixed on frame to driving mechanism both ends horizontal, sliding block and front and back on the direction guiding rail of front and back are connected to limit beam plate, sliding block and front and back on the direction guiding rail of front and back are connected to driving mechanism, left and right direction guiding rail and left and right are horizontally fixed on frame to driving mechanism both ends, sliding block and left and right on the direction guiding rail of left and right are connected to limit beam plate, and the sliding block on the direction guiding rail of left and right and left and right are connected to driving mechanism, position-limit mechanism is connected on frame.The present invention can guarantee to form reliable and stable, high-precision rectangular radiation open country with Xian Shu mechanism by guiding mechanism.
Description
Technical field
The invention belongs to the technical fields of radiotherapy instrument, and in particular to a kind of radiotherapy simulator beam-defining clipper.
Background technique
When carrying out simulator locating to the intracorporal tumour of tumor patient using radiotherapy simulator, it is desirable that in borderline tumor
Good shielding is formed in effective range in addition, limitation X-ray beam reduces X-ray to human normal to the radiation scope of human body
The injury of tissue, and on X video receiver formed certain shapes precision rectangular radiation open country image.It generallys use and is located at together
Two rectangles in one plan-position limit beam plate, rotate by axle center of outer ledge, and control inside edge aperture is (similar to opening for door
Close) range of exposures of control ray, such mode opening size need to be transformed to linear distance by angle function, there is calculating and miss
Difference, and it is not easy to control, in addition the depth of parallelism and verticality at radiation field size edge are all not easy to control.
Summary of the invention
In view of this, the present invention provides a kind of radiotherapy simulator beam-defining clipper, can be guaranteed by guiding mechanism with
It is wild that Xian Shu mechanism forms reliable and stable, high-precision rectangular radiation.
Realize that technical scheme is as follows:
A kind of radiotherapy simulator beam-defining clipper, including fixed frame, guiding mechanism, driving mechanism, Xian Shu mechanism and limit
Position mechanism；
The fixed frame includes lower installation board, upper mounting plate, front vertical plate, back vertical plate, left risers and right risers；
The guiding mechanism is upper and lower two layers of linear guide, and upper layer linear guide is front and back direction guiding rail, lower layer's linear guide
For left and right direction guiding rail；
The driving mechanism includes front and back to driving mechanism and controls to driving mechanism；
The Xian Shu mechanism includes front and back to limit beam plate and controls to limit beam plate；
The position-limit mechanism includes front and back to limited block and controls to limited block；
Integrated connection relationship: the front vertical plate, back vertical plate, left risers and right risers respectively with lower installation board, upper mounting plate
It is fixedly connected to form fixed frame；Front and back direction guiding rail and front and back are horizontally fixed on front vertical plate to the both ends of driving mechanism and stand afterwards
On plate, sliding block and front and back on the direction guiding rail of front and back are connected to limit beam plate, and sliding block on the direction guiding rail of front and back and front and back are to driving machine
Translational nut on structure is connected, and front and back is connected in left risers to limited block, the movement model of the sliding block on the direction guiding rail of limitation front and back
It encloses；
Left and right direction guiding rail and left and right are horizontally fixed in left risers and right risers to the both ends of driving mechanism, left and right guide
Sliding block and left and right on rail are connected to limit beam plate, and the translational nut of the sliding block on the direction guiding rail of left and right and left and right in driving mechanism
It is connected, left and right is connected on back vertical plate to limited block, limits the motion range of the sliding block on the direction guiding rail of left and right.
Further, the radiotherapy simulator beam-defining clipper further includes front and back to adjustment mechanism and controls to adjustment machine
Structure, front and back are connected in front and back in driving mechanism to adjustment mechanism, and adjustment front and back makes it about fixed frame to driving mechanism
Center line is symmetrical；Left and right is connected in left and right in driving mechanism to adjustment mechanism, and adjustment left and right makes it about solid to driving mechanism
The center line for determining frame is symmetrical.
The utility model has the advantages that
(1) present invention employs guiding mechanisms and driving mechanism independent operation mode；
(2) guiding mechanism that the present invention uses is made of pairs of high-precision line slideway auxiliary, it is ensured that Xian Shu mechanism is transporting
The geometric accuracy and shape formed during row keeps precision；
(3) driving mechanism that the present invention uses is made of the rigid connection of motor, retarder, transmission mechanism and adjustment mechanism,
Ensure the kinematic accuracy of Xian Shu mechanism；
(4) present invention uses two sets of driving mechanisms, independent operating or can run simultaneously；
(5) present invention employs two groups of limiting devices, limit the motion range of two sets of driving mechanisms respectively, it is ensured that mechanism
It is reliable for operation.
Detailed description of the invention
Fig. 1 is the main view of structure of the invention；
Fig. 2 is the top view of structure of the invention；
Fig. 3 is front and back to adjustment mechanism structure principle chart；
Wherein, 1- lower installation board, 2- upper mounting plate, 3- front vertical plate, 4- back vertical plate, 5- left risers, 6- right risers, the front and back 7-
Direction guiding rail, 8- or so direction guiding rail, the front and back 9- is to driving mechanism, and 10- or so is to driving mechanism, and to limit beam plate, 12- is left for the front and back 11-
Dextrad limits beam plate, and to adjustment mechanism before and after 13-, 14- or so is to adjustment mechanism, and to limited block before and after 15-, 16- or so is to limit
Block, 17- drive lead screw I, 18- to drive lead screw II, 19- shaft coupling, 20- holding screw.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present invention provides a kind of radiotherapy simulator beam-defining clippers, as depicted in figs. 1 and 2, including fixed frame, guiding
Mechanism, driving mechanism, Xian Shu mechanism and position-limit mechanism；
The fixed frame includes lower installation board 1, upper mounting plate 2, front vertical plate 3, back vertical plate 4, left risers 5 and right risers 6；
The guiding mechanism is upper and lower two layers of linear guide, and upper layer linear guide is two front and back direction guiding rails 7, and lower layer is straight
Line guide rail is two or so direction guiding rails 8；Sliding block there are two being respectively provided on every guide rail；
The driving mechanism includes front and back to driving mechanism 9 and controls to driving mechanism 10；Front and back is to driving mechanism 9 and a left side
Dextrad driving mechanism 10 is made of driving motor, retarder, two lead screws and two nuts, and two nuts are threadedly coupled respectively
On two lead screws, both ends horizontal is connected in front vertical plate 3 with after after two lead screws are connected by front and back (or left and right) adjustment mechanism
On vertical plate 4 (or left risers 5 and right risers 6), the screw thread of connected two lead screws is opposite, driving motor retarder turn
Dynamic, retarder drives lead screw rotation, so that two nuts on lead screw are exactly to move toward one another or reverse motions.
The Xian Shu mechanism include two pieces front and back to limit beam plate 11 and two pieces or so to limit beam plate 12；Limiting beam plate has shielding
The ability of the X-ray of certain equivalent；
The position-limit mechanism includes front and back to limited block 15 and controls to limited block 16；
Integrated connection relationship: the front vertical plate 3, back vertical plate 4, left risers 5 and right risers 6 respectively with lower installation board 1, upper peace
Loading board 2 is fixedly connected to form fixed frame；Two front and back direction guiding rails 7 are parallel to each other and level is connected in front vertical plate 3 and back vertical plate 4
Two sides, lead screw of the front and back into driving mechanism 9 is parallel with front and back direction guiding rail 7, and both ends are connected on front vertical plate 3 and back vertical plate 4,
Two pieces front and back to limit beam plate 11 by on front and back direction guiding rail 7 sliding block be connected, be parallel to each other be placed in two front and back direction guiding rails 7 it
Between, and the nut of sliding block and front and back in driving mechanism 9 on front and back direction guiding rail 7 is connected, front and back is located at close to limited block 15
It between two sliding blocks on the front and back direction guiding rail 7 of left risers 5, and is connected in left risers 5, the cunning on the direction guiding rail 7 of limitation front and back
The motion range of block, to define motion range of two pieces of front and backs to limit beam plate 11.
Two or so direction guiding rails 8 are parallel to each other and the horizontal two sides for being connected in left risers 5 and right risers 6, control to driving
Lead screw in mechanism 10 is parallel with left and right direction guiding rail 8, and both ends are connected in left risers 5 and right risers 6, two pieces or so to limit beam plate
12, by being connected with the sliding block on left and right direction guiding rail 8, are parallel to each other and are placed between two or so direction guiding rails 8, and left and right direction guiding rail 8
On nut in driving mechanism 10 of sliding block and left and right be connected, left and right to limited block 16 be located at close to the left and right of back vertical plate 4 to
It between two sliding blocks on guide rail 8, and is connected on back vertical plate 4, limits the motion range of the sliding block on left and right direction guiding rail 8, from
And define two pieces or so the motion range to limit beam plate 12.
The radiotherapy simulator beam-defining clipper further includes front and back to adjustment mechanism 13 and controls to adjustment mechanism 14；Front and back
To adjustment mechanism 13 and left and right to adjustment mechanism 14 including shaft coupling and holding screw；As shown in figure 3, sagittal two silks
The connecting pin of thick stick, i.e. driving lead screw I17 and driving lead screw II18 are installed in front and back in the shaft coupling 19 into adjustment mechanism 13,
And be fixed on the positioning by holding screw 20, left and right to the connecting pins of two lead screws be installed in left and right to adjustment mechanism 14
In shaft coupling in, and be fixed on the positioning by holding screw, holding screw 20 is in the position for adjusting screw, it is ensured that two
Root lead screw is symmetrical about the center line of fixed frame.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (1)
1. a kind of radiotherapy simulator beam-defining clipper, which is characterized in that including fixed frame, guiding mechanism, driving mechanism, limit beam
Mechanism and position-limit mechanism；
The fixed frame includes lower installation board (1), upper mounting plate (2), front vertical plate (3), back vertical plate (4), left risers (5) and the right side
Vertical plate (6)；
The guiding mechanism is upper and lower two layers of linear guide, and upper layer linear guide is front and back direction guiding rail (7), lower layer's linear guide
For left and right direction guiding rail (8)；
The driving mechanism includes front and back to driving mechanism (9) and controls to driving mechanism (10)；
The Xian Shu mechanism includes front and back to limit beam plate (11) and controls to limit beam plate (12)；
The position-limit mechanism includes front and back to limited block (15) and controls to limited block (16)；
Integrated connection relationship: the front vertical plate (3), back vertical plate (4), left risers (5) and right risers (6) respectively with lower installation board
(1), upper mounting plate (2) is fixedly connected to form fixed frame；The both ends of front and back direction guiding rail (7) and front and back to driving mechanism (9) are equal
It being horizontally fixed on front vertical plate (3) and back vertical plate (4), the sliding block and front and back on front and back direction guiding rail (7) are connected to limit beam plate (11),
And the translational nut of sliding block and front and back on driving mechanism (9) on front and back direction guiding rail (7) is connected, front and back is solid to limited block (15)
It is connected on left risers (5), the motion range of the sliding block on limitation front and back direction guiding rail (7)；
Left and right direction guiding rail (8) and left and right to the both ends of driving mechanism (10) are horizontally fixed on left risers (5) and right risers (6)
On, sliding block and left and right on left and right direction guiding rail (8) are connected to limit beam plate (12), and the sliding block on left and right direction guiding rail (8) and left and right
Translational nut on driving mechanism (10) is connected, and left and right is connected on back vertical plate (4) to limited block (16), limits left and right guide
The motion range of sliding block on rail (8)；
Wherein, the beam-defining clipper further includes front and back to adjustment mechanism (13) and left and right to adjustment mechanism (14), and front and back is to the machine of adjustment
Structure (13) is connected in front and back on driving mechanism (9), and adjustment front and back makes its center line about fixed frame to driving mechanism (9)
Symmetrically；Left and right is connected in left and right on driving mechanism (10) to adjustment mechanism (14), and adjustment left and right makes it to driving mechanism (10)
Center line about fixed frame is symmetrical；
The front and back is made of to driving mechanism (9) driving motor, retarder, two lead screws and two nuts, two nuts point
It is not threaded on two lead screws, it is vertical before both ends horizontal is connected in after two lead screws are connected by front and back to adjustment mechanism (13)
On plate (3) and back vertical plate (4), the hand of spiral of two lead screws is opposite；
The left and right is made of to driving mechanism (10) driving motor, retarder, two lead screws and two nuts, two nuts point
It is not threaded on two lead screws, both ends horizontal is connected in left vertical after two lead screws are connected by left and right to adjustment mechanism (14)
On plate (5) and right risers (6), the hand of spiral of two lead screws is opposite；
The front and back includes driving lead screw I, driving lead screw II, shaft coupling to adjustment mechanism (13) and left and right to adjustment mechanism (14)
Device and holding screw；The connecting pin of driving lead screw I and driving lead screw II are installed in shaft coupling, and are passed through holding screw and carried out
Positioning is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695750.XA CN105288868B (en) | 2015-10-22 | 2015-10-22 | A kind of radiotherapy simulator beam-defining clipper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695750.XA CN105288868B (en) | 2015-10-22 | 2015-10-22 | A kind of radiotherapy simulator beam-defining clipper |
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| Publication Number | Publication Date |
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| CN105288868A CN105288868A (en) | 2016-02-03 |
| CN105288868B true CN105288868B (en) | 2018-12-18 |
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| CN201510695750.XA Active CN105288868B (en) | 2015-10-22 | 2015-10-22 | A kind of radiotherapy simulator beam-defining clipper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106730413B (en) * | 2016-12-23 | 2019-05-17 | 江苏海明医疗器械有限公司 | A kind of medical accelerator ionisation chamber precision positioning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2571409Y (en) * | 2002-10-18 | 2003-09-10 | 中国核动力研究设计院 | Opening and closing definiting device for medical radiotherapy simulator |
| CN201968693U (en) * | 2011-01-11 | 2011-09-14 | 重庆华伦医疗器械有限公司 | Double-layer blade driving device for beam-limiter of X-ray apparatus |
| CN202505362U (en) * | 2011-12-29 | 2012-10-31 | 北京长城电子装备有限责任公司 | Shading mechanism of medical X-ray beam limiting device |
| CN103462624A (en) * | 2013-09-05 | 2013-12-25 | 中国科学院深圳先进技术研究院 | X-ray generator beam limiting device and blade driving device thereof |
| CN103519835A (en) * | 2013-10-14 | 2014-01-22 | 中国科学院深圳先进技术研究院 | Beam-limiting device blade driving device, beam-limiting device and X-ray machine |
| WO2014111869A2 (en) * | 2013-01-17 | 2014-07-24 | Panacea Medical Technologies Pvt. Ltd | An apparatus to deliver conformal radiotherapy using external beam cobalt 60 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007117397A2 (en) * | 2006-03-31 | 2007-10-18 | Fei Company | Improved detector for charged particle beam instrument |
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2015
- 2015-10-22 CN CN201510695750.XA patent/CN105288868B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2571409Y (en) * | 2002-10-18 | 2003-09-10 | 中国核动力研究设计院 | Opening and closing definiting device for medical radiotherapy simulator |
| CN201968693U (en) * | 2011-01-11 | 2011-09-14 | 重庆华伦医疗器械有限公司 | Double-layer blade driving device for beam-limiter of X-ray apparatus |
| CN202505362U (en) * | 2011-12-29 | 2012-10-31 | 北京长城电子装备有限责任公司 | Shading mechanism of medical X-ray beam limiting device |
| WO2014111869A2 (en) * | 2013-01-17 | 2014-07-24 | Panacea Medical Technologies Pvt. Ltd | An apparatus to deliver conformal radiotherapy using external beam cobalt 60 |
| CN103462624A (en) * | 2013-09-05 | 2013-12-25 | 中国科学院深圳先进技术研究院 | X-ray generator beam limiting device and blade driving device thereof |
| CN103519835A (en) * | 2013-10-14 | 2014-01-22 | 中国科学院深圳先进技术研究院 | Beam-limiting device blade driving device, beam-limiting device and X-ray machine |
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| CN105288868A (en) | 2016-02-03 |
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