CN101145408A - Grating aligner - Google Patents
Grating aligner Download PDFInfo
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- CN101145408A CN101145408A CNA2006101221933A CN200610122193A CN101145408A CN 101145408 A CN101145408 A CN 101145408A CN A2006101221933 A CNA2006101221933 A CN A2006101221933A CN 200610122193 A CN200610122193 A CN 200610122193A CN 101145408 A CN101145408 A CN 101145408A
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Abstract
The invention discloses a grating collimator used for radiotherapy, which comprises an upper fixed plate, a lower fixed plate, a rear fixed plate, a magazine chamber, a needle-pushing device, a needle-withdrawing device, a guide rail, a grating delivery device, and a driving device. The needle-withdrawing device is fixed above the upper fixed plate. The magazine chamber is arranged on the lower fixed plate. The needle-pushing device is fixed under the lower fixed plate and positioned right below the magazine chamber. The needle-withdrawing device is positioned right above the magazine chamber. An operating space is formed between the upper and the lower fixed plates. The guide rail is arranged between the upper and the lower fixed plates and partially extends outside the upper and the lower fixed plates. The grating delivery device is arranged on the guide rail and connected with the driving device. The grating delivery device is driven by the driving device to move along the guide rail between the operating space and the exterior thereof. The invention has the advantages of good versatility, high automation degree, easy use and high efficiency and can meet the requirements of high accuracy and rapid image following rate in the field of radiotherapy.
Description
Technical field
The present invention relates to medicine equipment, relate in particular to radiatherapy grid collimating apparatus.
Background technology
The medical radiotherapy instrument generally comprises central processing control device, therapeutic bed, treatment main frame, power supply and device for signalling, electric cabinet control device etc.Wherein, the treatment main frame comprises rotating cylinder, the X-ray generating means and the image collection receiving trap that are used for spiral-fault scanning are housed on the rotating cylinder, and are used for radioactive source, grating and the collimator apparatus thereof that radiation therapy is used, and the dosage pick-up unit etc. that is used to detect radiotherapeutic effect and radiotherapy progress.
Grating and collimator apparatus thereof are the critical piece of radiotherapy instrument, and it is related to the radiotherapy system one-piece construction and arranges and radiocurable effect and efficient.
The radioactive source device of traditional spiral-fault radiation therapeutic system comprises a plurality of cobalts-60 radioactive source, with its coupling be many cover multi-leaf optical grating collimator apparatus.It realizes that the three-dimensional suitable shape and the strength regulated shape-adapted practice are, on some irradiation positions, forms by electric multiblade optical grating earlier and the suitable shape launched field of tumor shape basically identical according to the form of tumour, and then finish the intensity conform irradiation of tumor thickness direction with the difform open country of contracting, the overlapping step that forms dose intensity with repeatedly irradiation distributes final the realization and tumour form and all consistent three-dimensional result of treatment of dose distribution.
Yet electric multiblade optical grating is to be overlaped by many independently tungalloy thin slices and micromachine to constitute, and at first it will be subjected to the restriction of structure and size, and just accurately the shape with tumour is consistent in the visual field, and suitable shape open country is obviously very coarse; In addition, need flexible motion between thin slice, therefore, that also can not lean between the blade is too tight, and this just unavoidably can produce interlobate slit source ray, and this makes the performance of strength regulated shape-adapted launched field and quality have a greatly reduced quality; Its three, the tungalloy blade is by step motor drive, motion needs the time, image-guided strength regulated shape-adapted in, the mode of moving with regard to not adopting more advanced beam to follow the organ movement can only adopt therapeutic bed to follow technology, and the speed of following can be affected accordingly.
As mentioned above, adopt many radioactive sources, and adopt the multi-leaf optical grating collimating apparatus, it is low to make that radiotherapy system complex structure, its image are followed speed, makes therapeutic efficiency poor; And the radiotherapy security is not high, and result of treatment is poor.
At the defective of above-mentioned multi-leaf optical grating and collimator apparatus thereof, a kind of novel matrix grating (or being called the honeycomb grating) arises at the historic moment.Offer abundant, enough thin vertebral foramen on the matrix grating, these vertebral foramens are arranged with array way, thereby form honeycomb.During radiation therapy, as the case may be, in vertebral foramen, fill the tungsten pin, form the tungsten pin combination corresponding and arrange with tumor shape; In addition, difference at the tumor thickness distribution, the therapeutic dose that the part of tumour different-thickness requires distributes different, need the modulation of precision rational strength, so the matrix type honeycomb grating can be formed by the matrix type honeycomb sub-gratings stack of multilayer different-thickness, each sublayer just becomes strength retrogression's device of a scale-of-two interpolation like this, and for example four stacked structures that add of son can provide 16 kinds of exposure intensities.The beneficial effect of this kind matrix type honeycomb grating is mainly reflected in: (1) this honeycomb-type grating adopts cellular and reaches the structure that multilayer superposes, thereby has accurate suitable shape and dose intensity regulatory function; (2) closely stack between the multilayer needle chamber does not exist the ray crack to leak, and has improved security; (3) easily operation, and overlap grating more and can switch use wherein one is enclosed within irradiation when using, and another set ofly just can adorn the operation of tungsten pin, so, follow the tracks of at image and to have the speed of well following when treating.
Summary of the invention
The corollary apparatus that the purpose of this invention is to provide a kind of matrix grating is used at radiation therapy matrix grating being carried out adjusting, transports operation.
For achieving the above object, grating aligner provided by the invention comprises upper mounted plate, bottom plate, rear fixed plate, the magazine device, needle pushing-up device, needle backing device, guide rail, the grating conveyer, drive unit, offer withdraw of the needle handle hole on the upper mounted plate, described needle backing device is fixed on the upper mounted plate top, and be positioned at withdraw of the needle handle hole place, offer magazine device parking space on the bottom plate, described magazine device is arranged in this magazine device parking space, described needle pushing-up device is fixed on the bottom plate below, rear fixed plate will be gone up, bottom plate is with the longitudinal direction fixed interval, thereby on this, limit an operating space between the bottom plate, needle pushing-up device be positioned at the magazine device under, needle backing device be positioned at the magazine device directly over, rail sections is arranged on, between the bottom plate, part extends, the bottom plate outside, the grating conveyer is arranged on the guide rail, the grating conveyer is provided with the grating parking space, the grating conveyer drives with drive unit and is connected, described operating space can be so that described grating conveyer therebetween passes, and the grating conveyer is moved between described operating space and this outside, operating space along guide rail by the driving of drive unit.
The present invention is based on the characteristic of matrix grating itself, provide a kind of and be used, matrix grating is carried out the grating aligner of operations such as regulating and transport with matrix grating.Versatility of the present invention is good, the automaticity height, easy to use, efficient is high, satisfies current field of radiation therapy precision height, image is followed fireballing requirement.
Description of drawings
Fig. 1 is the stereographic map of grating aligner of the present invention;
Fig. 2 is the front view of grating aligner of the present invention;
Fig. 3 is the vertical view of grating aligner of the present invention;
Fig. 4 is the upward view of grating aligner of the present invention;
Fig. 5 is the front view of the user mode of grating aligner of the present invention;
Fig. 6 is the stereographic map of another user mode of grating aligner of the present invention;
Fig. 7 is the upward view of the user mode of grating aligner among Fig. 6.
Description of reference numerals is as follows: upper mounted plate 111, bottom plate 112, rear fixed plate 113, limiting plate 114, guide rail 121, guide rail 122, magazine device 131, magazine device 132, magazine device 133, needle pushing-up device 141, needle pushing-up device 142, needle pushing-up device 143, needle backing device 151, needle backing device 152, needle backing device 153, sub-gratings conveyer 161, sub-gratings conveyer 162, sub-gratings conveyer 163, motor 171, screw mandrel 172, cylinder 200, displacement switch guide 210 are switched in displacement.
Embodiment
Please in conjunction with consulting Fig. 1,2,3 and 4, grating aligner provided by the invention comprises upper mounted plate 111, bottom plate 112, rear fixed plate 113, limiting plate 114, guide rail 121,122, magazine device 131,132,133, needle pushing-up device 141,142,143, needle backing device 151,152,153, sub-gratings conveyer 161,162,163, motor 171, screw mandrel 172.
The grating aligner that present embodiment provides has three cover needle backing devices, label is respectively 151,152 and 153 in the accompanying drawing, accordingly, offer three withdraw of the needle handle holes on the upper mounted plate 111, needle backing device 151,152 and 153 laterally is fixed on upper mounted plate 111 tops abreast, and lays respectively at three withdraw of the needle handle hole places.The grating aligner that present embodiment provides has three cover magazine devices, label is respectively 131,132 and 133 in the accompanying drawing, corresponding magazine device 131,132 and 133 offers magazine device parking space on the bottom plate 112, magazine device 131,132 and 133 is arranged in this magazine device parking space, and magazine device 131,132 and 133 is staged ground setting (shown in dotted portion among Fig. 2).The grating aligner that present embodiment provides has three cover needle pushing-up devices, and label is respectively 141,142 and 143 in the accompanying drawing, and needle pushing-up device 141,142 and 143 laterally is fixed on bottom plate 112 belows abreast.Wherein, position relation between magazine device, needle pushing-up device and the needle backing device is, needle pushing-up device 141,142 and 143 lay respectively at magazine device 131,132 and 133 under, needle backing device 151,152 and 153 lay respectively at magazine device 131,132 and 133 directly over (as Fig. 2).Upper mounted plate 111 and bottom plate 112 longitudinal separation certain distances are provided with, and it is upper mounted plate 111 and bottom plate 112 is fixing by rear fixed plate 113, thereby define an operating space between upper and lower fixing plate, this operating space can be so that the grating conveyer of being made up of three straton grating conveyers 161,162,163 therebetween passes.Guide rail in the present embodiment is two vertical bar shaped guide rails that be arranged in parallel, label is 121 and 122 in the accompanying drawing, guide rail 121 and 122 back segment are fixed between upper mounted plate 111 and the bottom plate 112, leading portion extends the outside of upper mounted plate 111 and bottom plate 112, and a limiting plate 114 is fixed on the front end of guide rail 121 and 122.See also Fig. 1, grating conveyer in the present embodiment comprises three sub-gratings conveyers, label is respectively 161 in the accompanying drawing, 162 and 163, three sub-gratings conveyers 161,162 and 163 offer sub-gratings parking space 181 at correspondence position respectively, 182 and 183, grating parking space 181, can deposit a sub-matrix grating in 182 and 183 respectively, also offered emptying aperture 192 and 193 on the sub-gratings conveyer 162 and 163, three sub-gratings conveyers 161,162 and 163 are arranged on guide rail 121 and 122 stackedly, three sub-gratings conveyers 161,162 and 163 are provided with link gear to each other, certainly, three sub-gratings conveyers 161,162 and 163 also can be driven by drive unit separately.In the present embodiment, drive unit is motor 171 and screw mandrel 172, the screw mandrel 172 terminal motors 171 that connect, and front end connects the sub-gratings conveyer 163 of grating conveyer.Yet described drive unit also can be cylinder and operating bar, the terminal cylinder that connects of operating bar, and front end connects the grating conveyer.
Among the present invention, the effect of grating conveyer is to carry matrix grating, and transport the matrix grating that it carries between the irradiation position outside described operating space and operating space, the grating conveyer of present embodiment comprises the three stacked sub-gratings conveyers 161 that add, 162 and 163, each sub-gratings conveyer all offers the grating parking space, so can carry a sub-matrix grating, when three straton grating conveyers 161,162 and 163 with its submatrix grating that carries separately after irradiation position stack, just form one and have suitable shape and the powerful matrix grating of accent.The operating space that limits between described upper mounted plate 111 and the bottom plate 112 is to be used for when the grating conveyer is transported to matrix grating in this operating space, by needle pushing-up device, magazine device and needle backing device matrix grating is carried out dress tungsten pin or is moved back the operation of tungsten pin.Wherein, deposited a large amount of tungsten pins in the magazine device, the tungsten pin can be released from the magazine device, and is pushed in the matrix grating, also can shift onto in the magazine device from matrix grating; Needle pushing-up device and needle backing device all have the pushing needle bar that can control, and needle pushing-up device is to utilize its pushing needle bar that the tungsten pin in the magazine device is pushed in the matrix grating, and needle backing device is to utilize its pushing needle bar that the tungsten pin in the matrix grating is pushed in the magazine device.The positive and negative rotation of motor 171, drive screw mandrel 172 positive and negative rotations, thereby drive the grating conveyer along guide rail 121 and 122 back and forth movement between the irradiation position of the operating space between upper mounted plate 111 and the bottom plate 112 and this outside, operating space by screw mandrel 172.
During use, specific operation process of the present invention is as follows: at first, the sub-gratings conveyer 163 that motor 171 and screw mandrel 172 drive the grating conveyer moves in described operating space, because three sub-gratings conveyers 161,162 and 163 are provided with link gear to each other, sub-gratings conveyer 163 will drive sub-gratings conveyer 161 and 162 and also move in described operating space; When three sub-gratings conveyers 161, in the time of in 162 and 163 operating spaces that move between upper mounted plate 111 and the bottom plate 112, because magazine device 131,132 and 133 are staged setting, so when sub-gratings conveyer 161 moves to magazine device 131 tops, magazine device 132 continues motion backward with siding stopping grating conveyer 161, and sub-gratings conveyer 162 and 163 is subjected to drive inwardly motion of continuation, when sub-gratings conveyer 162 moves to magazine device 132 tops, magazine device 133 continues motion backward with siding stopping grating conveyer 162, and sub-gratings conveyer 163 is subjected to drive inwardly motion of continuation, up to moving to magazine device 133 tops, at this moment; At this moment, three sub-matrix gratings that sub-gratings conveyer 161,162 and 163 carries lay respectively between magazine device 131 and the needle backing device 151, between magazine device 132 and the needle backing device 152 and between magazine device 133 and the needle backing device 153, and cross the top that emptying aperture 192 is positioned at the submatrix grating that sub-gratings conveyer 161 carries, cross the top that emptying aperture is positioned at the submatrix grating that sub-gratings conveyer 162 carries 193 this moments; Afterwards, by needle pushing-up device 141,142 and 143 and needle backing device 151,152 and 153 and cooperate magazine device 131,132 and 133, three sub-matrix gratings are carried out dress tungsten pin respectively or moved back tungsten pin operation (dress pin, withdraw of the needle operation are by analyzing shape and the thickness distribution to tumour, carrying out according to treatment plan); Dress tungsten pin or move back after tungsten pin operation finishes, motor 171 and screw mandrel 172 driven element grating conveyers 163 travel forward, sub-gratings conveyer 163 will drive sub-gratings conveyer 162 when moving to magazine device 131 tops and travel forward, travel forward at drive sub-gratings conveyer 161 afterwards, move to limiting plate 114 places up to three sub-gratings conveyers 161,162 and 163, the submatrix grating that this moment, sub-gratings conveyer 161,162 and 163 carried is through dress pin, withdraw of the needle operation, and finished vertically stackedly, just can be used as irradiation and use.
More grating aligner of the present invention can overlap and be used, see also Fig. 5, be that two cover grating aligners are used among the figure, the leading portion of the guide rail of two cover grating aligners is overlapped, the use thereby the matrix grating that makes the two grating conveyers that overlap the accurate value devices of gratings carry can superpose, transfer strong precision thereby can improve grating, and improved the efficient of the dress pin and the withdraw of the needle.Please Fig. 6 and Fig. 7, it among the figure composite set that unitized construction is arranged side by side shown in two cover Fig. 5, it is characterized in that: this composite set is arranged on the displacement switch guide 210, this composite set switches cylinder 200 with displacement and is connected, displacement is switched the whole device of cylinder 200 drivings and is moved on displacement switch guide 210, thereby make that unitized construction shown in two cover Fig. 5 is switched use at the irradiation position place in use, thereby further improved the speed of following in the radiation therapy.
In the foregoing description, the grating conveyer comprises three sub-gratings conveyers, be provided with three cover needle backing devices, three cover needle pushing-up devices and three cover magazine devices accordingly, yet said structure only is a kind of preferable embodiment.In the reality,, have the above-mentioned device of at least two covers respectively, can carry out suitable shape and the function of transferring strong operation to entrained matrix grating so that grating aligner has when grating aligner of the present invention uses the time spent separately; When as Fig. 5 or Fig. 6, when many covers grating aligner shown in Figure 7 is used, when having the above-mentioned device of a cover respectively, can have entrained matrix grating is carried out suitable shape and transferred the function of strong operation so that overlap the unitized construction of grating aligner more.
The present invention is based on the characteristic of matrix grating itself, provide a kind of and be used, matrix grating is carried out the grating aligner of operations such as regulating and transport with matrix grating.Versatility of the present invention is good, the automaticity height, easy to use, efficient is high, satisfies current radiation therapy precision height, image is followed fireballing requirement.
Claims (9)
1. grating aligner, it is characterized in that: comprise upper mounted plate, bottom plate, rear fixed plate, the magazine device, needle pushing-up device, needle backing device, guide rail, the grating conveyer, drive unit, offer withdraw of the needle handle hole on the upper mounted plate, described needle backing device is fixed on the upper mounted plate top, and be positioned at withdraw of the needle handle hole place, offer magazine device parking space on the bottom plate, described magazine device is arranged in this magazine device parking space, described needle pushing-up device is fixed on the bottom plate below, rear fixed plate will be gone up, bottom plate is with the longitudinal direction fixed interval, thereby on this, limit an operating space between the bottom plate, needle pushing-up device be positioned at the magazine device under, needle backing device be positioned at the magazine device directly over, rail sections is arranged on, between the bottom plate, part extends, the bottom plate outside, the grating conveyer is arranged on the guide rail, the grating conveyer is provided with the grating parking space, the grating conveyer drives with drive unit and is connected, described operating space can be so that described grating conveyer therebetween passes, and the grating conveyer is moved between described operating space and this outside, operating space along guide rail by the driving of drive unit.
2. grating aligner as claimed in claim 1, it is characterized in that: described guide rail is two vertical bar shaped guide rails that be arranged in parallel, the back segment of two guide rails is fixed between the described upper and lower fixing plate, leading portion extends described upper and lower fixing plate outside, and a limiting plate is fixed on the front end of two vertical bar shaped guide rails that be arranged in parallel.
3. grating aligner as claimed in claim 1 is characterized in that: described drive unit is motor and screw mandrel, the terminal motor that connects of screw mandrel, and front end connects the grating conveyer.
4. grating aligner as claimed in claim 1 is characterized in that: described drive unit is cylinder and operating bar, the terminal cylinder that connects of operating bar, and front end connects the grating conveyer.
5. as claim 1,2,3 or 4 any described grating aligners, it is characterized in that: described grating conveyer comprises at least two sub-gratings conveyers, each sub-gratings conveyer offers the sub-gratings parking space at correspondence position, and the sub-gratings conveyer is arranged on the described guide rail stackedly.
6. grating aligner as claimed in claim 5 is characterized in that: described sub-gratings conveyer is provided with link gear to each other.
7. grating aligner as claimed in claim 5 is characterized in that: this grating aligner comprises and the same number of magazine device of sub-gratings conveyer that these magazine devices are staged ground and are provided with.
8. grating aligner as claimed in claim 7, it is characterized in that: this grating aligner comprises and the same number of needle pushing-up device of sub-gratings conveyer, these needle pushing-up devices be arranged on corresponding magazine device under, this grating aligner comprises and the same number of needle backing device of sub-gratings conveyer, these needle backing devices be arranged on corresponding magazine device directly over.
9. grating aligner as claimed in claim 5 is characterized in that: also offered emptying aperture on the described sub-gratings conveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101221933A CN100573737C (en) | 2006-09-15 | 2006-09-15 | Grating aligner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101221933A CN100573737C (en) | 2006-09-15 | 2006-09-15 | Grating aligner |
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| Publication Number | Publication Date |
|---|---|
| CN101145408A true CN101145408A (en) | 2008-03-19 |
| CN100573737C CN100573737C (en) | 2009-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101221933A Expired - Fee Related CN100573737C (en) | 2006-09-15 | 2006-09-15 | Grating aligner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662251A (en) * | 2012-04-18 | 2012-09-12 | 无锡瑞迪声科技有限公司 | Circle center diverging type collimator and optical system |
| CN103892849A (en) * | 2012-12-27 | 2014-07-02 | 深圳市蓝韵实业有限公司 | Grid storage device |
| CN104474639A (en) * | 2014-12-02 | 2015-04-01 | 上海联影医疗科技有限公司 | Radiological treatment equipment, therapeutic target, manufacturing method of therapeutic target and radiological treatment method |
-
2006
- 2006-09-15 CN CNB2006101221933A patent/CN100573737C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662251A (en) * | 2012-04-18 | 2012-09-12 | 无锡瑞迪声科技有限公司 | Circle center diverging type collimator and optical system |
| CN103892849A (en) * | 2012-12-27 | 2014-07-02 | 深圳市蓝韵实业有限公司 | Grid storage device |
| CN103892849B (en) * | 2012-12-27 | 2016-02-10 | 深圳市蓝韵实业有限公司 | Grid storage device |
| CN104474639A (en) * | 2014-12-02 | 2015-04-01 | 上海联影医疗科技有限公司 | Radiological treatment equipment, therapeutic target, manufacturing method of therapeutic target and radiological treatment method |
| CN104474639B (en) * | 2014-12-02 | 2017-12-22 | 上海联影医疗科技有限公司 | Radiotherapy apparatus, therapeutic target and preparation method thereof, radiation therapy method |
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| Publication number | Publication date |
|---|---|
| CN100573737C (en) | 2009-12-23 |
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