CN100464377C - Blade regulating method of multi-blade collimator and multi-blade collimator - Google Patents
Blade regulating method of multi-blade collimator and multi-blade collimator Download PDFInfo
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- CN100464377C CN100464377C CNB011298146A CN01129814A CN100464377C CN 100464377 C CN100464377 C CN 100464377C CN B011298146 A CNB011298146 A CN B011298146A CN 01129814 A CN01129814 A CN 01129814A CN 100464377 C CN100464377 C CN 100464377C
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- blade
- collimator
- control mechanism
- servo control
- clutch
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 238000007493 shaping process Methods 0.000 claims description 23
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 210000004907 gland Anatomy 0.000 claims description 2
- 238000001959 radiotherapy Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
A mmulti-blade collimator is disclosed. A method for regulating its blades by moving them in 3 directions by servo mechanism includes such steps as sending regulation command from control unit to blade servo mechanism, moving the blade servo mechanism to the blade, separating the blade from the blade fixer while grasping it by blade clutch, moving the blade to needed position, releasing the blade, and fixing the blade by fixer. Its advantages are less number of structural members, and high reliability of regulation.
Description
Technical field
The present invention relates to medical radiotherapy apparatus, be specifically related to the multi-blade collimator in the radiotherapy apparatus, more particularly, relate to a kind of blade method of adjustment of multi-blade collimator and based on the multi-blade collimator of said method.
Background technology
In the prior art; multi-blade collimator is and the supporting use of radiotherapy apparatus; be used to do suitable shape and transfer the strong specialized equipment that waits treatment; its essential structure and principle of work are by mobile multi-disc shielding blade (being generally tungalloy); its end is formed and the corresponding figure of focus; the treatment ray that radiotherapy apparatus is sent retrains; after making ray pass through collimating apparatus; the shape of ray and focus basically identical; can realize protecting normal structure; improve the purpose of radiological dose, thereby improve result of treatment.
The blade method of adjustment of a kind of multi-blade collimator that is now adopted is the adjusting mechanism that all is provided with drive motor and members composition blades such as screw mandrel that matches or wire rope on each sheet blade, the drive motor that control device drives respectively on each sheet blade carries out the suitable shape adjustment of blade, the shortcoming of this method of adjustment is, set-up procedure is many, the time is long, the member in the adjusting gear is too much, make complete machine oversize, drive disk assembly is many, the failure rate height.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of blade method of adjustment of multi-blade collimator is provided, utilize this method of adjustment can make that the blade adjustment of multi-blade collimator is easier and reliable, another technical matters that the present invention will solve is, a kind of multi-blade collimator based on above-mentioned method of adjustment is provided, and the member in the collimating apparatus is few, makes that the physical dimension of equipment set is little, can make the blade shaping of multi-blade collimator more accurate, failure rate is low.
Technical scheme of the present invention is, constructs a kind of blade method of adjustment of multi-blade collimator, it is characterized in that, may further comprise the steps:
A, control module send blade adjustment shaping instruction to unique blade servo control mechanism;
B, described unique blade servo control mechanism move to shaping position in order according to each blade that instruction will be arranged in a plurality of blade guide pieces;
C, described unique blade servo control mechanism repeat above-mentioned steps A and B under the control of control module, described a plurality of blades that will be arranged in described a plurality of blade guide pieces move to shaping position by moving order; In the blade method of adjustment of above-mentioned multi-blade collimator, described step B further may further comprise the steps:
Blade arrangement of clutch in b1, the described unique blade servo control mechanism is along laterally moving to the position that needs to adjust blade;
B2, described blade arrangement of clutch move down to make and are adjusted blade and blade locking device disengaging and catch blade;
B3, described blade arrangement of clutch are along the longitudinal movement blade are moved to shaping position;
B4, the described blade arrangement of clutch disengaging blade that moves up, the blade locking device return is positioned at shaping position with blade.
In the blade method of adjustment of above-mentioned multi-blade collimator, if the position at wherein some blades place just in time is positioned at shaping position, the blade servo control mechanism is skipped this blade, moves next blade.
Another technical matters of the present invention is to realize like this, construct a kind of multi-blade collimator, comprise a control module, a plurality of blade and a plurality of blade guide piece, also comprise according to from described control module order, drive unique blade servo control mechanism that each blade pass in described a plurality of blade guide pieces is crossed the displacement of described blade guide piece and located in proper order; Described unique blade servo control mechanism comprises the blade arrangement of clutch, and the driven vane arrangement of clutch is along vertical, horizontal and the vertical direction drive unit that moves and the locating device that is connected with described blade of blade.
In above-mentioned multi-blade collimator, described each blade guide piece all provides guiding to a plurality of blades, and a plurality of blades of each blade guide piece guiding drive by described blade servo control mechanism.
In above-mentioned multi-blade collimator, described blade arrangement of clutch comprises transfer arm, one by gland and described transfer arm front end spacingly be connected, vertically moving slide block, blade grip flange of the inside recessed formation in the both sides of the bottom of described slide block, also be provided with a little thimble on the lower surface of described slide block, the adjacent place of described slide block and described transfer arm is provided with back-moving spring.
Implement the blade method of adjustment and the multi-blade collimator of multi-blade collimator provided by the invention, a plurality of blades of adjusting in each blade guide piece by a control module blade servo control mechanism of control moving on three directions move shaping in order, this moving structure significantly reduces the number of components in the collimating apparatus middle regulator, feasible adjustment is more reliable, and the failure rate of collimating apparatus is lower.
Description of drawings
Fig. 1 is the structural representation of multi-blade collimator of the present invention.
Embodiment
By the blade method of adjustment of multi-blade collimator provided by the invention, be to send blade adjustment instruction to the blade servo control mechanism by control module; The blade servo control mechanism moves to the position of adjusting blade under the driving of lateral driver device; The blade servo control mechanism makes under the driving of vertical driving device and is adjusted blade and blade locking device and breaks away from and catch blade simultaneously; The blade servo control mechanism unclamps blade after under the driving of vertical drive unit the blade that is booked being moved to shaping position; Blade locking device makes blade be positioned at shaping position; The blade servo control mechanism repeats above-mentioned steps under the control of control module, all blades in each group are adjusted to assigned address respectively.
As shown in Figure 1, principle of work according to above-mentioned method of adjustment, comprise with lower member by multi-blade collimator provided by the invention: a control module 1, be provided with a blade servo control mechanism 2 that is controlled by control module 1, in servo control mechanism 2, be provided with blade arrangement of clutch 4, also be provided with and be controlled by control module, can make vertical (the Y direction) of blade arrangement of clutch 4 along blade, the horizontal mobile drive unit 3 of (directions X) and vertical direction (Z direction), be respectively equipped with the stepper motor that blade arrangement of clutch 4 is moved along three directions in the drive unit 3, and be provided with locating device 6 at an end of each sheet blade 5.
The blade servo control mechanism is as follows with the process that blade moves shaping:
Select blade to move (transfer arm is along laterally moving): control module sends the chip select instruction, and the horizontal drive motor in the drive unit moves to transfer arm and specifies blade (if this blade has been in shaping position, then skip this blade, move next blade);
(transfer arm moves in the vertical direction) moved in pulldown: the vertical direction drive motor in the drive unit moves down mechanical arm blade and locating device separated and catches blade;
Be shaped and move (transfer arm is along the longitudinal movement): the vertical drive motor in the drive unit drives mechanical arm blade is moved to shaping position;
The vertical direction drive motor of transfer arm in drive unit makes the transfer arm relieving blade that moves up, and the locating device of blade one end is positioned at shaping position with blade; Transfer arm is finished the shaping of this blade and is moved, and control module control transfer arm repeats the above-mentioned course of work all blades are all moved to shaping position, finishes whole shapings and moves.
Claims (5)
1. the blade method of adjustment of a multi-blade collimator is characterized in that, may further comprise the steps:
A, control module send blade adjustment shaping instruction to unique blade servo control mechanism;
B, described unique blade servo control mechanism move to shaping position in order according to each blade that instruction will be arranged in a plurality of blade guide pieces;
C, described unique blade servo control mechanism repeat above-mentioned steps A and B under the control of control module, move to shaping position with a plurality of blades that will be arranged in described a plurality of blade guide pieces by moving order;
Described step B further comprises:
Blade arrangement of clutch in b1, the described unique blade servo control mechanism is along laterally moving to the position that needs to adjust blade;
B2, described blade arrangement of clutch move down to make and are adjusted blade and blade locking device disengaging and catch blade;
B3, described blade arrangement of clutch are along the longitudinal movement blade are moved to shaping position;
B4, the described blade arrangement of clutch disengaging blade that moves up, the blade locking device return is positioned at shaping position with blade.
2. according to the blade method of adjustment of the described multi-blade collimator of claim 1, it is characterized in that if the position at wherein some blades place just in time is positioned at shaping position, described unique blade servo control mechanism is skipped this blade, carry out moving of next blade.
3. multi-blade collimator, it is characterized in that, comprise a control module, a plurality of blade and a plurality of blade guide piece, it is characterized in that, also comprise according to from described control module order, drive unique blade servo control mechanism that each blade pass in described a plurality of blade guide piece is crossed the displacement of described blade guide piece and located in proper order; Described unique blade servo control mechanism comprises the blade arrangement of clutch, and the driven vane arrangement of clutch is along vertical, horizontal and the vertical direction drive unit that moves and the locating device that is connected with described blade of blade.
4. according to the described multi-blade collimator of claim 3, it is characterized in that described each blade guide piece all provides guiding to a plurality of blades, a plurality of blades of each blade guide piece guiding drive by described blade servo control mechanism.
5. according to the described multi-blade collimator of claim 4, it is characterized in that, described blade arrangement of clutch comprises transfer arm, one by gland and described transfer arm front end spacingly be connected, vertically moving slide block, blade grip flange of the inside recessed formation in the both sides of the bottom of described slide block, also be provided with a little thimble on the lower surface of described slide block, the adjacent place of described slide block and described transfer arm is provided with back-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011298146A CN100464377C (en) | 2001-10-23 | 2001-10-23 | Blade regulating method of multi-blade collimator and multi-blade collimator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011298146A CN100464377C (en) | 2001-10-23 | 2001-10-23 | Blade regulating method of multi-blade collimator and multi-blade collimator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1413745A CN1413745A (en) | 2003-04-30 |
| CN100464377C true CN100464377C (en) | 2009-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011298146A Expired - Lifetime CN100464377C (en) | 2001-10-23 | 2001-10-23 | Blade regulating method of multi-blade collimator and multi-blade collimator |
Country Status (1)
| Country | Link |
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| CN (1) | CN100464377C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759032B (en) * | 2015-04-08 | 2017-08-25 | 苏州雷泰医疗科技有限公司 | A kind of grating device and its control method and radiotherapy equipment for radiotherapy equipment |
| CN109259781B (en) * | 2018-07-26 | 2022-02-11 | 深圳先进技术研究院 | Grating stopper and method for adjusting grating spacing and CBCT system |
| CN111009333A (en) * | 2019-12-30 | 2020-04-14 | 上海联影医疗科技有限公司 | Multi-blade collimator equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4794629A (en) * | 1986-05-14 | 1988-12-27 | Siemens Aktiengesellschaft | Contour collimator for radiation therapy |
| US4987309A (en) * | 1988-11-29 | 1991-01-22 | Varian Associates, Inc. | Radiation therapy unit |
| US5166531A (en) * | 1991-08-05 | 1992-11-24 | Varian Associates, Inc. | Leaf-end configuration for multileaf collimator |
| US5351280A (en) * | 1992-03-19 | 1994-09-27 | Wisconsin Alumni Research Foundation | Multi-leaf radiation attenuator for radiation therapy |
| US5555283A (en) * | 1995-06-07 | 1996-09-10 | Board Of Regents Of The University Of Texas System | Computer-controlled miniature multileaf collimator |
| US5654996A (en) * | 1996-03-29 | 1997-08-05 | Siemens Medical Systems, Inc. | Method and apparatus for positioning blocking elements in a collimator |
| CN2376318Y (en) * | 1999-07-08 | 2000-05-03 | 宋世鹏 | Multilobate aligner |
| JP2000354593A (en) * | 1999-06-15 | 2000-12-26 | Toshiba Corp | X-ray television apparatus |
| CN2502724Y (en) * | 2001-10-02 | 2002-07-31 | 深圳市一体智能技术有限公司 | Multiple-blade collimator |
-
2001
- 2001-10-23 CN CNB011298146A patent/CN100464377C/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4794629A (en) * | 1986-05-14 | 1988-12-27 | Siemens Aktiengesellschaft | Contour collimator for radiation therapy |
| US4987309A (en) * | 1988-11-29 | 1991-01-22 | Varian Associates, Inc. | Radiation therapy unit |
| US5166531A (en) * | 1991-08-05 | 1992-11-24 | Varian Associates, Inc. | Leaf-end configuration for multileaf collimator |
| US5351280A (en) * | 1992-03-19 | 1994-09-27 | Wisconsin Alumni Research Foundation | Multi-leaf radiation attenuator for radiation therapy |
| US5555283A (en) * | 1995-06-07 | 1996-09-10 | Board Of Regents Of The University Of Texas System | Computer-controlled miniature multileaf collimator |
| US5654996A (en) * | 1996-03-29 | 1997-08-05 | Siemens Medical Systems, Inc. | Method and apparatus for positioning blocking elements in a collimator |
| JP2000354593A (en) * | 1999-06-15 | 2000-12-26 | Toshiba Corp | X-ray television apparatus |
| CN2376318Y (en) * | 1999-07-08 | 2000-05-03 | 宋世鹏 | Multilobate aligner |
| CN2502724Y (en) * | 2001-10-02 | 2002-07-31 | 深圳市一体智能技术有限公司 | Multiple-blade collimator |
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| Publication number | Publication date |
|---|---|
| CN1413745A (en) | 2003-04-30 |
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Owner name: SHENZHEN CITY YITI MEDICAL CARE SCIENCE AND TECHNO Free format text: FORMER NAME: SHENZHEN CITY ET INTELLIGENCE TECHNOLOGY CO., LTD. |
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Address after: 4 floor, clear sunshine road, two road, Nanshan District science and Technology Park, Shenzhen, Guangdong Patentee after: Hangzhou ET Medical Technology Co., Ltd. Address before: Guangdong city of Shenzhen province science and Technology Park, No. 5 west east three Patentee before: Yiti Intelligent Technology Co., Ltd., Shenzhen City |
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Owner name: SHENZHEN ET MEDICAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN ENERGY TECHNOLOGY, INC. |
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Address after: 4, Guangdong 518057, Shenzhen, Nanshan District science and Technology Park, Sunny Hill, two clean Sunshine Garden Patentee after: Shenzhen ET Medical Technology Co., Ltd. Address before: 4, Guangdong 518057, Shenzhen, Nanshan District science and Technology Park, Sunny Hill, two clean Sunshine Garden Patentee before: Hangzhou ET Medical Technology Co., Ltd. |
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Owner name: SHENZHEN ENERGY TECHNOLOGY, INC. Free format text: FORMER NAME: SHENZHEN ET MEDICAL TECHNOLOGY CO., LTD. |
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Address after: 4, Guangdong 518057, Shenzhen, Nanshan District science and Technology Park, Sunny Hill, two clean Sunshine Garden Patentee after: Hangzhou ET Medical Technology Co., Ltd. Address before: 4, Guangdong 518057, Shenzhen, Nanshan District science and Technology Park, Sunny Hill, two clean Sunshine Garden Patentee before: Shenzhen ET Medical Technology Co., Ltd. |
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Granted publication date: 20090225 |
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