CN206549003U - A kind of medical primary collimating structure of heavy ion beam current - Google Patents
A kind of medical primary collimating structure of heavy ion beam current Download PDFInfo
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- CN206549003U CN206549003U CN201621120916.1U CN201621120916U CN206549003U CN 206549003 U CN206549003 U CN 206549003U CN 201621120916 U CN201621120916 U CN 201621120916U CN 206549003 U CN206549003 U CN 206549003U
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- screw
- collimating vanes
- collimating
- vanes
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Abstract
A kind of medical primary collimating structure of heavy ion beam current, overcome that existing skill volume is big, weight is big, take up space big, function is compatible, unfavorable association can be produced in maintenance and troubleshooting and Adjustment precision is low, the problem of continuous adjustment requirement can not being met, it is characterized in that the horizontal ball screw component of left-right rotary and the vertical ball screw component of left-right rotary are fixedly mounted on carriage, the horizontal ball screw component of left-right rotary is won in succession by left collimating vanes connects upper collimating vanes, is won in succession by right collimating vanes and connects right collimating vanes；The vertical ball screw component of left-right rotary is won in succession by upper collimating vanes connects upper collimating vanes, won in succession by lower collimating vanes and connect lower collimating vanes, beneficial effect is simple in construction, 2 left-right rotary ball screws are only needed just to drive 4 collimating vanes synchronous on-offs, it is function-specific, it is easy to operate, reliable, it is easy to repair, it disclosure satisfy that the synchronization and continuously adjustable requirement of HIB passage primary collimation in Heavy Ion Cancer Therapy device.
Description
Technical field
The utility model belongs to technical field of medical equipment, more particularly to for one kind in Heavy Ion Cancer Therapy device
The medical primary collimating structure of heavy ion beam current.
Background technology
It is a kind of brand-new medical mode to carry out tumour radiotherapy using HIB light beam, relative to traditional tumour
Therapeutic modality, the characteristics of this therapeutic modality has safe, minimally invasive and quick is a kind of accurate treatment technology.Heavy ion beam current
Medical example of primary collimator be Heavy Ion Cancer Therapy device important component, its effect has two aspects, on the one hand
It determines the wild scope of greatest irradiation that the accelerator can be provided, on the other hand, and it is blocked outside the wild scope of greatest irradiation
The primary radiation produced by radiation source, is the primary of irradiation field to be modulated in heavy ion tumour radiotherapy, is placed on heavy ion
Stream outlet position, on the basis of beam center, square open country is turned into by irradiation field modulation, is matched somebody with somebody additionally as tungsten door with multi-leaf optical grating
Conjunction is used.In this process, it is necessary to complete the synchronous adjustment of HIB passage primary collimation.In the prior art complete weight from
The primary collimating structure such as Application No. CN201120570089.7 of the synchronous adjustment of beamlet passage primary collimation utility model
A kind of disclosed clinac expansion filter governor motion, the utility model includes example of primary collimator, the primary
Provided with four relative chutes and for fixing the fixed block of expansion filter and governor motion and by fixed spiral shell in collimater
Nail is connected with example of primary collimator；Be used for separately adjustable expansion filter in GT and AB directions 4 are provided with the example of primary collimator
Regulating block, and be connected by adjusting screw with fixed block, regulating block is in oblique in chute, and with expansion filter contacts face
Face.The problem of utility model is present is that it is a relatively independent structural member, this relatively independent structural member, volume
Greatly, weight is big, takes up space big, it is necessary to which heavy ion beam current outlet port provides larger installing space, and function is compatible, in dimension
Repair and during troubleshooting, unfavorable association can be produced；In addition, the utility model is attached using sunk screw, what is existed asks
Topic is that sunk screw need to contribute fastening function and self-locating function, will so disturb adjustment, and machining accuracy is proposed
Pole is strict with, and the 3rd, the utility model is because by adjusting screw, regulating block regulation and regulation manually, precision is low, it is impossible to full
Sufficient continuously adjustable requirement.
The applicant is carrying out structure improvement in the process, and 4 collimating vanes synchronizations are driven using 4 motors, 4 leading screws
Folding, complicated, volume is still larger, and installation and debugging are cumbersome, and cost clothing is higher, it is necessary to further improve.
The content of the invention
Technical problem to be solved in the utility model is to overcome in place of the deficiencies in the prior art that there is provided a kind of function is special
One, it is simple in construction, it is easy to operate, reliable, it is easy to repair, and a kind of medical primary collimation of heavy ion beam current of continuously controllable
Structure.
The technical solution adopted in the utility model includes carriage, is fixedly mounted on the left column and right column of carriage
The horizontal ball screw component of left-right rotary, the horizontal ball screw component of left-right rotary is won in succession by left collimating vanes and connects left collimation leaf
Piece, the horizontal ball screw component of left-right rotary is won in succession by right collimating vanes and connects right collimating vanes；Carriage entablature and
The vertical ball screw component of left-right rotary is fixedly mounted on sill, the vertical ball screw component of left-right rotary is connected by upper collimating vanes
The upper collimating vanes of connection are pulled, the vertical ball screw component of left-right rotary is won in succession by lower collimating vanes connects lower collimating vanes.
The horizontal ball screw component of left-right rotary by the horizontal ball screw of left-right rotary, left screw, left screw fixing screws,
Left nut seat, right screw, right screw fixing screws and right nut seat are constituted, and left screw is installed on the horizontal ball screw of left-right rotary
With right screw, the left screw and right screw and the horizontal ball screw of left-right rotary are all that gyration pair is converted to linear motion
Pay；Left screw is connected by left screw fixing screws with left nut seat, and right screw passes through right screw fixing screws and right nut seat
Connection, left nut seat connects left collimating vanes by left nut seat fixing screws and won in succession, and left collimating vanes are won in succession by left collimation
Blade fixing screws connect left collimating vanes；Right nut seat connects right collimating vanes by right nut seat fixing screws and won in succession, right
Collimating vanes are won in succession and connect right collimating vanes by right collimating vanes fixing screws component.
The vertical ball screw component of left-right rotary by the vertical ball screw of left-right rotary, upper screw, upper screw fixing screws,
Upper nut seat, lower screw, lower screw fixing screws and lower nut seat are constituted, and the upper screw and lower screw are rolled vertically with left-right rotary
Ballscrew is all that gyration pair is converted to straight-line pair, and screw and lower silk are installed on the vertical ball screw of left-right rotary
Mother, upper screw is connected by upper screw fixing screws with upper nut seat；Lower screw passes through lower screw fixing screws and lower nut seat
Connection, lower nut seat connects lower collimating vanes by lower nut seat fixing screws and won in succession, and lower collimating vanes are won in succession by lower collimation
The lower collimating vanes of blade fixing screws connection, upper nut seat connects upper collimating vanes by upper nut seat fixing screws and won in succession, on
Collimating vanes are won in succession by the upper collimating vanes of upper collimating vanes fixing screws connection.
The left collimating vanes are 1 hexahedron, are machined with hole of tightening up a screw the top surface of left collimating vanes is corresponding with bottom surface
With lower screw hole.
The right collimating vanes, upper collimating vanes and lower collimating vanes are identical with the structure of left collimating vanes 2, in left collimation
Provided with the double-head arrow that left collimating vanes and right collimating vanes can move leftwards and rightwards is represented before blade and right collimating vanes, upper
Before collimating vanes and lower collimating vanes provided with represent upper collimating vanes and lower collimating vanes can to up and down motion double-head arrow.
The carriage 1 constitutes quadra by left column, right column, entablature and sill, the quadra ×
The mm of the mm of high × a width of 500 mm × 500 × 122.
Left-right rotary is fixedly mounted by angular contact bearing and zanjon bearing on the left column and right column of the carriage
Horizontal ball screw component, is fixed by angular contact bearing and zanjon bearing on the entablature and sill of the carriage and pacified
Fill the vertical ball screw component of left-right rotary.
Compared with prior art, the beneficial effects of the utility model are：
（1）Due to using the horizontal ball screw component of left-right rotary and the vertical ball screw component composition transmission knot of left-right rotary
Structure, it is only necessary to which 2 servomotors, 2 left-right rotary ball screws can just drive 4 collimating vanes synchronous on-offs, simple in construction, work(
Can it is single-minded, and when using in servomotor under control, accurately can continuously adjust, substantially increase reliability of structure.
（2）Also due to using the horizontal ball screw component of left-right rotary and the vertical ball screw component composition transmission knot of left-right rotary
Structure, it is only necessary to 2 servomotors, 2 left-right rotary ball screws 4 collimating vanes synchronous on-offs of drive, small volume, carriage
Long × high × wide is only 500 mm × 500 mm × 122mm, takes up space small, can save the installation of heavy ion beam current outlet port
Space, all brings to installation and debugging conveniently, while also saving manufacturing cost.
（3）Left collimating vanes that the utility model is used in compact space, right collimating vanes, on collimating vanes and under
Collimating vanes structure is identical, with interchangeability, easy for installation, easy to repair, and folding is synchronous, disclosure satisfy that Heavy Ion Cancer Therapy
Synchronization, the continuously adjustable requirement of HIB passage primary collimation in device.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 is Fig. 1 rearview,
Fig. 3 is Fig. 1 A-A sectional views,
Fig. 4 is Fig. 1 B-B cutaway view Amplified images,
Fig. 5 is Fig. 1 C-C sectional views,
Fig. 6 is the profile of figure collimating vanes.
In figure：
1. carriage,
1-1. left columns, 1-2. right columns,
1-3. entablatures, 1-4. sills,
2. left collimating vanes,
3. left collimating vanes are won in succession,
4. left collimating vanes fixing screws,
5. left nut seat fixing screws,
6. left screw fixing screws,
7. left screw,
8. left nut seat,
9. the horizontal ball screw of left-right rotary,
10. right screw fixing screws,
11. right screw,
12. right nut seat
13. right nut seat fixing screws,
14. right collimating vanes are won in succession,
15. right collimating vanes fixing screws,
16. right collimating vanes,
17. on collimating vanes,
18. lower collimating vanes
19. the vertical ball screw of left-right rotary,
20. on screw fixing screws,
21. on screw,
22. on nut seat
23. on nut seat fixing screws,
24. upper collimating vanes are won in succession,
25. on collimating vanes fixing screws,
26. lower screw fixing screws,
27. lower screw
28. lower nut seat
29. lower nut seat fixing screws,
30. lower collimating vanes are won in succession,
31. lower collimating vanes fixing screws
32. angular contact bearing,
33 zanjon bearings.
Embodiment
The utility model is elaborated below in conjunction with the accompanying drawings.
As shown in drawings, the technical solution adopted by the present invention includes carriage 1, and the carriage 1 is by left column 1-1, the right side
Column 1-2, entablature 1-3 and sill 1-4 composition quadras, length × height × a width of 500 mm × 500 of the quadra
The mm of mm × 122, takes up space small, can save the installing space of heavy ion beam current outlet port, give installation and debugging sides of bringing
Just；Through hole is machined with the left column 1-1 and right column 1-2 of carriage 1, is processed on left column 1-1 and right column 1-2
Through hole in the horizontal ball screw 9 of left-right rotary is fixedly mounted by angular contact bearing 32 and zanjon bearing 33, in left-right rotary level
Left screw 7 and right screw 11 are installed, the horizontal ball screw 9 of the left screw 7 and right screw 11 and left-right rotary is all on ball screw 9
It is that gyration pair is converted to straight-line pair；Left screw 7 is connected by left screw fixing screws 6 with left nut seat 8；Right screw
11 are connected by right screw fixing screws 10 with right nut seat 12, are consolidated by the horizontal ball screw 9 of left-right rotary, left screw 7, left screw
Determine screw 6, left nut seat 8, right screw 11, right screw fixing screws 10 and right nut seat 12 and constitute the horizontal ball screw of left-right rotary
Component；The horizontal ball screw component of the left-right rotary is fixed on carriage 1 by the horizontal ball screw 9 of left-right rotary；Left silk
Female seat 8 connects left collimating vanes by left nut seat fixing screws 5 and wins 3 in succession, and left collimating vanes are won in succession 3 solid by left collimating vanes
Determine screw 4 and connect left collimating vanes 2；Right nut seat 12 connects right collimating vanes by right nut seat fixing screws 13 and wins 14 in succession,
Right collimating vanes are won in succession 14 connects right collimating vanes 16 by right collimating vanes fixing screws 15；In the entablature 1-3 of carriage
With the vertical ball screw 19 of left-right rotary is fixedly mounted by angular contact bearing 32 and zanjon bearing 33 on sill 1-4, in left and right
Revolve and screw 21 and lower screw 27 are installed on vertical ball screw 19, the upper screw 21 and lower screw 27 are rolled vertically with left-right rotary
Ballscrew 19 is all that gyration pair is converted to straight-line pair；Upper screw 21 passes through upper screw fixing screws 20 and upper nut seat
22 connections；Lower screw 27 is connected by lower screw fixing screws 26 with lower nut seat 28, by the vertical ball screw 19 of left-right rotary, on
Screw 21, upper screw fixing screws 20, upper nut seat 22, lower screw 27, lower screw fixing screws 26 and lower nut seat 28 are constituted
The vertical ball screw component of left-right rotary, the vertical ball screw component of the left-right rotary installs solid by the vertical ball screw 19 of left-right rotary
It is scheduled on carriage 1, lower nut seat 28 connects lower collimating vanes by lower nut seat fixing screws 29 and won in succession 30, lower collimating vanes
30 are won in succession by the lower collimating vanes 18 of lower collimating vanes fixing screws 31 connection, upper nut seat 22 passes through upper nut seat fixing screws
The 23 upper collimating vanes of connection win 24 in succession, and upper collimating vanes are won in succession 24 connects upper collimating vanes by upper collimating vanes fixing screws 25
17。
By taking left collimating vanes 2 as an example, the left collimating vanes 2 are 1 hexahedron, top surface and bottom in left collimating vanes 2
Face correspondence is machined with the hole 2-1 and hole 2-2 that tightens up a screw that tightens up a screw, and the right collimating vanes 16 are identical with the left structure of collimating vanes 2, institute
The concrete structure for stating collimating vanes 17 and lower collimating vanes 18 is identical with the structure of left collimating vanes 2 and right collimating vanes 16,
Installation is simply rotated by 90 °, provided with the left collimating vanes 2 of expression and right collimation before left collimating vanes 2 and right collimating vanes 16
The double-head arrow that blade 16 can move leftwards and rightwards, is provided with before upper collimating vanes 17 and lower collimating vanes 18 and represents to collimate leaf
Piece 17 and lower collimating vanes 18 can to up and down motion double-head arrow.
In use, passing through the horizontal ball screw 9 of left-right rotary and horizontal servo motor connection, the vertical ball screw 19 of left-right rotary
With vertical servo motor connection, according to the speed for setting up needs, make the horizontal ball screw 9 of left-right rotary and the vertical ball wire of left-right rotary
The synchronous axial system of bar 19, the horizontal ball screw 9 of left-right rotary drive left collimating vanes 2 and right collimating vanes 16 go in the same direction or it is opposite and
OK, the vertical ball screw 19 of left-right rotary drives upper collimating vanes 17 and lower collimating vanes 18 to go in the same direction or go opposite to each other, you can
4 collimating vanes synchronous on-offs are reached, the continuous synchronization adjustment of HIB passage primary collimation is completed.
Claims (7)
1. a kind of medical primary collimating structure of heavy ion beam current, including carriage（1）, it is characterised in that in carriage（1）On
The horizontal ball screw component of left-right rotary is fixedly mounted, the horizontal ball screw component of left-right rotary is won in succession by left collimating vanes（3）Even
Connect left collimating vanes（2）, the horizontal ball screw component of left-right rotary won in succession by right collimating vanes（14）Connect right collimating vanes
（16）；In carriage（1）The upper fixed installation vertical ball screw component of left-right rotary, the vertical ball screw component of left-right rotary passes through upper
Collimating vanes are won in succession（24）Collimating vanes in connection（17）, the vertical ball screw component of left-right rotary won in succession by lower collimating vanes
（30）The lower collimating vanes of connection（18）.
2. a kind of medical primary collimating structure of heavy ion beam current according to claim 1, it is characterised in that the left-right rotary
Horizontal ball screw component is by the horizontal ball screw of left-right rotary（9）, left screw（7）, left screw fixing screws（6）, left nut seat
（8）, right screw（11）, right screw fixing screws（10）With right nut seat（12）Constitute, in the horizontal ball screw of left-right rotary（9）On
Left screw is installed（7）With right screw（11）, the left screw（7）With right screw（11）With the horizontal ball screw of left-right rotary（9）All
It is that gyration pair is converted to straight-line pair；Left screw（7）Pass through left screw fixing screws（6）With left nut seat（8）Connection,
Right screw（11）Pass through right screw fixing screws（10）With right nut seat（12）Connection, left nut seat（8）It is solid by left nut seat
Determine screw（5）Left collimating vanes are connected to win in succession（3）, left collimating vanes win in succession（3）Pass through left collimating vanes fixing screws（4）Connection
Left collimating vanes（2）；Right nut seat（12）Pass through right nut seat fixing screws（13）Right collimating vanes are connected to win in succession（14）, right standard
Prismatic blade is won in succession（14）Pass through right collimating vanes fixing screws component（15）Connect right collimating vanes（16）.
3. a kind of medical primary collimating structure of heavy ion beam current according to claim 1, it is characterised in that the left-right rotary
Vertical ball screw component is by the vertical ball screw of left-right rotary（19）, upper screw（21）, upper screw fixing screws (20), upper screw
Seat（22）, lower screw（27）, lower screw fixing screws（26）With lower nut seat（28）Constitute, the upper screw（21）With lower screw
（27）With the vertical ball screw of left-right rotary（19）All it is that gyration pair is converted to straight-line pair, in the vertical ball wire of left-right rotary
Bar（19）On install screw（21）With lower screw（27）, upper screw（21）Pass through upper screw fixing screws（20）With upper nut seat
（22）Connection；Lower screw（27）Pass through lower screw fixing screws（26）With lower nut seat（28）Connection, lower nut seat（28）Pass through
Lower nut seat fixing screws（29）The lower collimating vanes of connection are won in succession（30）, lower collimating vanes win in succession（30）It is solid by lower collimating vanes
Determine screw（31）The lower collimating vanes of connection（18）, upper nut seat（22）Pass through upper nut seat fixing screws（23）Leaf is collimated in connection
Piece is won in succession（24）, upper collimating vanes win in succession（24）Pass through upper collimating vanes fixing screws（25）Collimating vanes in connection（17）.
4. a kind of medical primary collimating structure of heavy ion beam current according to claim 1, it is characterised in that the left collimation
Blade（2）For 1 hexahedron, in left collimating vanes（2）Top surface corresponding with bottom surface be machined with hole of tightening up a screw（2-1）With lower screw
Hole（2-2）.
5. a kind of medical primary collimating structure of heavy ion beam current according to claim 4, it is characterised in that the right collimation
Blade（16）, upper collimating vanes（17）With lower collimating vanes（18）With left collimating vanes（2）Structure it is identical, in left collimating vanes
（2）With right collimating vanes（16）Before provided with representing left collimating vanes（2）With right collimating vanes（16）It can move leftwards and rightwards
Double-head arrow, in upper collimating vanes（17）With lower collimating vanes（18）Before provided with representing upper collimating vanes（17）With lower collimation leaf
Piece（18）Can to up and down motion double-head arrow.
6. a kind of medical primary collimating structure of heavy ion beam current according to claim 1, it is characterised in that the support
Frame 1 is by left column（1-1）, right column（1-2）, entablature（1-3）And sill（1-4）Constitute quadra, the quadra
The mm of the mm of length × height × a width of 500 mm × 500 × 122.
7. the medical primary collimating structure of a kind of heavy ion beam current according to claim 6, it is characterised in that in the support
Frame（1）Left column（1-1）And right column（1-2）It is upper to pass through angular contact bearing（32）With zanjon bearing（33）Left and right is fixedly mounted
Horizontal ball screw component is revolved, in the carriage（1）Entablature（1-3）And sill（1-4）It is upper to pass through angular contact bearing
（32）With zanjon bearing（33）The vertical ball screw component of left-right rotary is fixedly mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120916.1U CN206549003U (en) | 2016-10-14 | 2016-10-14 | A kind of medical primary collimating structure of heavy ion beam current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120916.1U CN206549003U (en) | 2016-10-14 | 2016-10-14 | A kind of medical primary collimating structure of heavy ion beam current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206549003U true CN206549003U (en) | 2017-10-13 |
Family
ID=60369642
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621120916.1U Expired - Fee Related CN206549003U (en) | 2016-10-14 | 2016-10-14 | A kind of medical primary collimating structure of heavy ion beam current |
Country Status (1)
| Country | Link |
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| CN (1) | CN206549003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334277A (en) * | 2016-10-14 | 2017-01-18 | 沈阳慧宇真空技术有限公司 | Medical primary collimation structure of heavy ion beam |
-
2016
- 2016-10-14 CN CN201621120916.1U patent/CN206549003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334277A (en) * | 2016-10-14 | 2017-01-18 | 沈阳慧宇真空技术有限公司 | Medical primary collimation structure of heavy ion beam |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171013 Termination date: 20211014 |