CN201959425U - Grating device of radiotherapy equipment - Google Patents
Grating device of radiotherapy equipment Download PDFInfo
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- CN201959425U CN201959425U CN2010206895243U CN201020689524U CN201959425U CN 201959425 U CN201959425 U CN 201959425U CN 2010206895243 U CN2010206895243 U CN 2010206895243U CN 201020689524 U CN201020689524 U CN 201020689524U CN 201959425 U CN201959425 U CN 201959425U
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- blade
- grating device
- radiotherapy equipment
- sheet
- blades
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Abstract
The utility model discloses a grating device of radiotherapy equipment. Blades in different thickness can be combined and circularly arranged in clusters, so that the influence caused by steps formed by the end surfaces of the blades at the cross sections of holes can be reduced, and envelop curves of the sections of the holes can be closer to the dimensions and the shapes of focuses, thereby overcoming the defect that the steps of the envelop curves of the cross sections of the holes are remarkable due to the blades with large width, and the fitting degree of the shapes and the dimensions of the envelop curves and the focuses is not high so as to cause the problem that healthy tissues are hurt or sick tissues are difficult to kill, and solving the problems that due to the blades with small width, the number of blade driving devices is large, the structure is complex, and the weight of the whole device is large.
Description
Technical field
This utility model relates to a kind of armarium, particularly is used for the grating device of radiotherapy equipment.
Background technology
Radiotherapy equipment is when carrying out radiotherapy to patient, need the dosage of control treatment and the scope of roentgenization, to reach best therapeutic effect and will drop to minimum to the injury of health tissues, therefore state-of-the art radiotherapy equipment is to install additional on the accelerator to adjust the grating of ray by area at radiation head, grating is provided with the through hole that can adjust size and shape, ray accurately shines focus by this through hole, to avoid causing the injury to normal structure.
The radiotherapy equipment grating device is the adnexa that is exclusively used in the linear accelerator of radiation oncology; be used for limiting radiating zone; avoid radiation to protect other vital tissue; so just replaced traditional shieldingblocks (protective plate); traditional protective plate must be made the manufacturing expense costliness according to the requirement of each tumor.Traditional protective plate is because they are to the separately rejecting separately of each tumor, very natural just requires them according to the shape of tumor good adjusting to be arranged, therefore, producing and using the device in a kind of qualification that can adjust accordingly, reusable radioactive area is to be worth expectation, uses the radiotherapy equipment grating device can both be fit to for the shape of a series of tumor cell.
Existing radiotherapy equipment grating device has two to overlap independently movably blade, and two cover blades are positioned opposite to each other; By moving blade, make blade in the space, mark boundary, the profile phase of the tumor that the zone that is defined between the blade is just in time treated with needs is corresponding.Blade can move by artificial, electronics or electrical equipment.
Have two class radiotherapy equipment grating devices known in technology formerly, in the first kind, corresponding wide blade is made by tungsten and is used for the treatment of big tumor.The width of blade of this radiotherapy equipment grating device is 6CM-1CM, allows the width in the field of radiating maximum to reach 60cm.
The anterior locations of blade has rectangular shape, a problem can appear when using this radiotherapy equipment grating device with wide blade, when the anterior locations of blade is moved to the profile place of tumor, the contrast that meets with the tumor profile phase that may obtain a satisfaction.If the anterior locations of blade be moved to the profile of tumor contacted first the time, this stair-stepping pattern will be opened wide relatively large zone so, this bigger zone can make radioactive threat and destroy some fatal tissues.This becomes an especially serious problem during brain for treatment.If avoid when allowing blade move allowing fatal tissue be exposed in the radioactive area, have like this to cause another opposite problem, i.e. the previous section of blade formed " ladder platform " meeting cover part tumor can not be treated the part tumor that is not capped.The more important thing is, use the dispersion that this radiotherapy equipment grating device can radiate to reach a higher level, dosage is diminished gradually.Generally speaking, above-mentioned radiotherapy equipment grating device with wide blade is applicable to the radiation in big zone, can not be deacclimatized the shape of the object that is reflected by accurate adjustment.
For addressing this problem, second kind is used the radiotherapy equipment grating device of narrow blades to occur, this blade is narrow to 1mm, radioactive area to tumor shape is have one well to regulate in principle, yet relevant such equipment but has a series of shortcoming, especially for the consideration of the size in the zone that is reflected.
The quantity of the blade that is used is limited, this is because each blade all must be moved separately by mechanical mode, the machinery that is moved for example motor must all will be installed on radiotherapy equipment grating device or its support component, these necessary parts have just occupied the upper limit of blade quantity, because if blade is too many, can be because its adnexa and dynamic power machine make the radiotherapy equipment grating device massiveness that becomes.
It is very little that the width of the limiter stage blade of blade quantity narrow and small defines the radioactive area of sort accelerator.Therefore, although have very little degree of regulation, this radiotherapy equipment grating device is only limited to quite little application, for example for the radiation of very little tumor.
The use of the radiotherapy equipment grating device of using for radiotherapy stems from European patent 0245768, has described a kind of accurate adjustment equipment for blade, and another is the patent 4203610 from Germany, and he has used dynamic power machine and adjustment equipment to blade.These two kinds of radiotherapy equipment grating devices all are to use the blade of same widths, that is to say that they have the above-mentioned narrow blades or the problem of wide blade.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide can reasonablely agree with focus appearance profile radiotherapy equipment grating device under the certain situation of a kind of blade quantity.
For achieving the above object, the technical solution of the utility model is: a kind of radiotherapy equipment grating device, comprise a bracing or strutting arrangement,
Be installed in two groups of blades that are oppositely arranged on the described bracing or strutting arrangement, described blade has cross-directional length size, horizontal direction width dimensions and vertical direction gauge, and can move, its movement locus is consistent with described cross-directional length dimensional directions
Described blade comprises thin slice, standard film and three kinds of different sizes of sheet or two kinds of specifications wherein, and the horizontal direction width dimensions of described thin slice, standard film and sheet increases successively,
The arrangement architecture of described every group of blade is in proper order by bunch arrangement, every foliage sheet include in thin slice, standard film and three kinds of specification blades of sheet a kind of, two or three, every group of blade rearranged by two or three in described three kinds bunches.
Preferably, blade is provided with the mutual interlocking gear that prevents that lonizing radiation from revealing.
Preferably, the horizontal width size of the blade of the relative position of described two groups of blades is corresponding one by one identical.
Preferably, described mutual interlocking gear is mating recess and the raised line that the side of adjacent two blades is provided with.
Preferably, the cross section of described blade is a triangle or trapezoidal, and the shape of cross section of described adjacent blades is inverted mutually.
Preferably, also be provided with blade driving apparatus, described blade driving apparatus and described blade be corresponding one by one to be in transmission connection and to control it and independently move or move together, and described blade driving apparatus is installed on the described bracing or strutting arrangement.
Preferably, also be provided with the micro computer central control unit, described micro computer central control unit is electrically connected with described blade driving apparatus, and described micro computer central control unit moves according to the described blade driving apparatus driven vane of the Data Control of its storage and determines stop position.
Preferably, each described blade is provided with position sensor, and described position sensor is electrically connected with described micro computer central control unit.
Preferably, described bunch blade row array structure is arranged in order for the size by the horizontal direction width dimensions in proper order, or backward is arranged.
Preferably, described bunch blade row array structure in proper order at least one plate sheet and at least a slice standard film be arranged in order or backward arrangement.
Preferably, described bunch blade row array structure in proper order at least one plate sheet, at least a slice standard film and at least a slice sheet be arranged in order, or backward is arranged.
Preferably, the both sides of described every group of blade also are arranged with the blade of single horizontal direction width dimensions.
Preferably, comprise, in the middle of 1 thin slice is positioned over by a standard film and one laminar bunch, both sides are respectively arranged 6 above-mentioned bunch, both sides are respectively arranged 3 standard films again, and both sides are arranged 7 sheets again, and promptly the arrangement architecture of every group of blade is followed successively by 7 sheets in proper order, be 3 standard films then, being that 6 thin slices and 6 standard films are alternately arranged then, is 1 thin slice then, is that 6 standard films and 6 thin slices are alternately arranged then, being 3 standard films then, is 7 sheets at last.
Preferably, the arrangement architecture of described every group of blade is in proper order, in the middle of 5 thin slices are positioned over, 1 sheet is respectively arranged in both sides, both sides are respectively arranged 6 thin slices again, and both sides are respectively arranged 6 sheets again, and promptly the arrangement architecture of every group of blade is followed successively by 6 sheets in proper order, be 6 thin slices then, being 1 sheet then, is 5 thin slices then, is 1 sheet then, being 6 thin slices then, is 6 sheets at last.
Adopt the beneficial effect of the technical program to be: the form that adopts thin slice, standard film and sheet to make up in groups, cycle arrangement makes limited blade can better agree with the profile of focus, has overcome all drawbacks that the single size blade brings.
Description of drawings
Fig. 1 is the sketch map that a kind of radiotherapy equipment grating device of this utility model is executed example 1:
Fig. 2 is the sketch map of a kind of radiotherapy equipment grating device of this utility model embodiment 2;
Fig. 3 is the sketch map of a kind of radiotherapy equipment grating device of this utility model embodiment 3.
Numeral and the represented corresponding component title of letter among the figure:
11. thin slice 12. standard films 13. sheets 2. blade driving apparatus
3. micro computer central control unit 4. bracing or strutting arrangements 5. mutual interlocking gears
The specific embodiment
Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.
Embodiment 1,
As shown in Figure 1, a kind of radiotherapy equipment grating device, comprise a bracing or strutting arrangement, be installed in two groups of blades that are oppositely arranged on the described bracing or strutting arrangement, every group of blade comprises three kinds of independently blades, every kind of described blade has the cross-directional length size, horizontal direction width dimensions and vertical direction gauge, and can move, its movement locus is consistent with described cross-directional length dimensional directions, described blade comprises thin slice 11, standard film 12 and thick 13 three kinds of different sizes, described thin slice 11, the horizontal direction width dimensions of standard film 12 and sheet 13 increases successively, by bunch arrangement, every foliage sheet includes thin slice 11 to the arrangement architecture of described every group of blade in proper order, 13 3 kinds of each a slices of specification blade of standard film 12 and sheet.Described bunch blade row array structure is arranged in order for thin slice 11, standard film 12 and sheet 13 in proper order.The horizontal direction width of described sheet is 4mm, and the horizontal direction width of described standard film is 3mm, and described wafer level direction width is 2mm.The quantity of every group of blade is 36,72 blades of two combination meters.The radiotherapy equipment grating device also is provided with blade driving apparatus 2, and described blade driving apparatus 2 and described blade be corresponding one by one to be in transmission connection and to control it and independently move or move together, and described blade driving apparatus 2 is installed on the described bracing or strutting arrangement 4.
The radiotherapy equipment grating device also is provided with micro computer central control unit 3, described micro computer central control unit 3 is electrically connected with described blade driving apparatus 4, and described micro computer central control unit 3 moves according to described blade driving apparatus 4 driven vane of the Data Control of its storage and determines stop position.
Each described blade is provided with position sensor, and described position sensor is electrically connected with described micro computer central control unit 3.
As shown in Figure 3, blade is provided with the mutual interlocking gear 5 that prevents that lonizing radiation from revealing.Mating recess and raised line that described mutual interlocking gear 5 is provided with for the side of adjacent two blades.
The horizontal width size of the blade of the relative position of described two groups of blades is corresponding one by one identical.
Operation principle is, in the memorizer of radiotherapy equipment with information such as the shape of detected focus, size input micro computer central control unit 3, micro computer central control unit 3 moves according to described blade driving apparatus 4 driven vane of the Data Control of its storage, and determines stop position according to the vane position information of position sensor feedback.By controlling the different amount of movement of each blade, make and formed one and focus shape hole of the same size between two groups of blades, the treatment that radiotherapy equipment discharged just can be passed through this hole irradiated lesion with ray, kill pathological tissues, reach the purpose of accurate treatment, reduce injury as much as possible health tissues.The combination cycle arrangement of the blade cluster cluster of different-thickness, can reduce the influence that ladder that vane end faces forms brings on the hole cross section, can make its envelope more approach the size and dimension of focus, the blade that can overcome big width brings hole cross section envelope ladder obvious, not high with the focus shape and size goodness of fit, that cause or healthy tissue or be difficult to kill the problem of sufferer tissue has overcome again that the blade driving apparatus quantity that little width leaves brings is big, complex structure and the big problem of whole installation weight.
As shown in Figure 2, all the other are identical with embodiment 1, and difference is, are that inverted trapezoid this structure constitutes described mutual interlocking gear 5 mutually by the shape of cross section of described adjacent blades.
All the other are identical with embodiment 1, and difference is that described bunch blade row array structure is that two plate sheets, a slice standard film and a slice sheet are arranged in order in proper order.
In the foregoing description, the number combinations of thin slice 11, standard film 12 and sheet 13 of forming every bunch blade is to be provided with flexibly as required, and its arrangement architecture order can positive sequence also can be a backward, and perhaps positive sequence, backward hocket.The total quantity of blade also can be selected as required, and general described every group of blade is made up of 12-42 blade.
In the foregoing description, also can set up auxiliary blade, described auxiliary blade is inserted between two blades by mechanical devices, and on the centre position between the anterior locations of two blades.Auxiliary blade can make the cross section envelope of hole more along sliding, the appearance curve of the focus of coincideing more.
Adopt the beneficial effect of the technical program to be: the form that adopts thin slice, standard film and sheet to make up in groups, cycle arrangement makes limited blade can better agree with the profile of focus, has overcome all drawbacks that the single size blade brings.
All the other are identical with embodiment 1, difference is, form by a standard film 12 and a thin slice 11 for described every bunch, 1 thin slice 11 is positioned over middle, both sides are respectively arranged 6 above-mentioned bunch, both sides are respectively arranged 3 standard films 12 again, both sides are arranged 7 sheets 13 again, the arrangement architecture that is every group of blade is followed successively by 7 sheets 13 in proper order, is 3 standard films 12 then, is that 6 thin slices 11 and 6 standard films 12 are alternately arranged then, be 1 thin slice 11 then, being that 6 standard films 12 and 6 thin slices 11 are alternately arranged then, is 3 standard films 12 then, is 7 sheets 13 at last.
Embodiment 5,
All the other are identical with embodiment 1, and difference is, in the middle of 5 thin slices 11 are positioned over, 1 sheet 13 is respectively arranged in both sides, both sides are respectively arranged 6 thin slices 11 again, and both sides are respectively arranged 6 sheets 13 again, and promptly the arrangement architecture of every group of blade is followed successively by 6 sheets 13 in proper order, be 6 thin slices 11 then, being 1 sheet 13 then, is 5 thin slices 11 then, is 1 sheet 13 then, being 6 thin slices 11 then, is 6 sheets 13 at last.
Embodiment 6,
All the other are identical with embodiment 1, difference is, form by a thin slice 11 and a sheet 12 for described every bunch, in the middle of promptly 16 blades are positioned over 8 above-mentioned bunch, both sides are respectively arranged 8 sheets 13 again, the arrangement architecture that is every group of blade is followed successively by 8 sheets 13 in proper order, is that 8 thin slices 11 and 8 standard films 12 are alternately arranged then, is 8 sheets 13 at last.
Embodiment 7,
All the other are identical with embodiment 4, difference is, form by a thin slice 11 and a sheet 12 for described every bunch, in the middle of promptly 24 blades are positioned over 12 above-mentioned bunch, both sides are respectively arranged 10 sheets 13 again, the arrangement architecture that is every group of blade is followed successively by 10 sheets 13 in proper order, is that 12 thin slices 11 and 12 standard films 12 are alternately arranged then, is 10 sheets 13 at last.
Among embodiment 4 and embodiment 5 and the embodiment 6, sheet 13 can be replaced by standard film 12 or thin slice 11, its quantity is determined according to actual needs, wherein bunch blade formation also can be made up of standard film 12 and sheet 13, also can form, also can adjust its two kinds as required flexibly and form the kind of blade and the quantity of every kind of blade by two plate sheets 11 and a standard film 12.
Above-described only is preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from this utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (15)
1. a radiotherapy equipment grating device comprises a bracing or strutting arrangement,
Be installed in two groups of blades that are oppositely arranged on the described bracing or strutting arrangement, described blade has cross-directional length size, horizontal direction width dimensions and vertical direction gauge, and can move, its movement locus is consistent with described cross-directional length dimensional directions
Described blade comprises thin slice, standard film and three kinds of different sizes of sheet or two kinds of specifications wherein, and the horizontal direction width dimensions of described thin slice, standard film and sheet increases successively,
The arrangement architecture of described every group of blade is in proper order by bunch arrangement, every foliage sheet include in thin slice, standard film and three kinds of specification blades of sheet a kind of, two or three, every group of blade rearranged by two or three in described three kinds bunches.
2. radiotherapy equipment grating device according to claim 1 is characterized in that, blade is provided with the mutual interlocking gear that prevents that lonizing radiation from revealing.
3. radiotherapy equipment grating device according to claim 1 is characterized in that, the horizontal width size of the blade of the relative position of described two groups of blades is corresponding one by one identical.
4. radiotherapy equipment grating device according to claim 2 is characterized in that, described mutual interlocking gear is mating recess and the raised line that the side of adjacent two blades is provided with.
5. radiotherapy equipment grating device according to claim 1 is characterized in that, the cross section of described blade is a triangle or trapezoidal, and the shape of cross section of described adjacent blades is inverted mutually.
6. radiotherapy equipment grating device according to claim 1, it is characterized in that, also be provided with blade driving apparatus, described blade driving apparatus and described blade be corresponding one by one to be in transmission connection and to control it and independently move or move together, and described blade driving apparatus is installed on the described bracing or strutting arrangement.
7. radiotherapy equipment grating device according to claim 6, it is characterized in that, also be provided with the micro computer central control unit, described micro computer central control unit is electrically connected with described blade driving apparatus, and described micro computer central control unit moves according to the described blade driving apparatus driven vane of the Data Control of its storage and determines stop position.
8. radiotherapy equipment grating device according to claim 7 is characterized in that, each described blade is provided with position sensor, and described position sensor is electrically connected with described micro computer central control unit.
9. according to the arbitrary described radiotherapy equipment grating device of claim 1 to 8, it is characterized in that described bunch blade row array structure is arranged in order for the size by the horizontal direction width dimensions in proper order, or backward is arranged.
10. according to the arbitrary described radiotherapy equipment grating device of claim 1 to 8, it is characterized in that, described bunch blade row array structure in proper order at least one plate sheet and at least a slice standard film be arranged in order or backward arrangement.
11. according to the arbitrary described radiotherapy equipment grating device of claim 1 to 8, it is characterized in that, described bunch blade row array structure in proper order at least one plate sheet, at least a slice standard film and at least a slice sheet be arranged in order, or backward is arranged.
12. according to the arbitrary described radiotherapy equipment grating device of claim 1 to 8, it is characterized in that, comprise by a standard film and one laminar bunch, 1 thin slice is positioned over middle, both sides are respectively arranged 6 above-mentioned bunch, both sides are respectively arranged 3 standard films again, both sides are arranged 7 sheets again, the arrangement architecture that is every group of blade is followed successively by 7 sheets in proper order, is 3 standard films then, is that 6 thin slices and 6 standard films are alternately arranged then, be 1 thin slice then, being that 6 standard films and 6 thin slices are alternately arranged then, is 3 standard films then, is 7 sheets at last.
13., it is characterized in that the arrangement architecture of described every group of blade is in proper order according to the arbitrary described radiotherapy equipment grating device of claim 1 to 8,5 thin slices are positioned over the centre, and 1 sheet is respectively arranged in both sides, and both sides are respectively arranged 6 thin slices again, both sides are respectively arranged 6 sheets again, the arrangement architecture that is every group of blade is followed successively by 6 sheets in proper order, is 6 thin slices then, is 1 sheet then, be 5 thin slices then, being 1 sheet then, is 6 thin slices then, is 6 sheets at last.
14. radiotherapy equipment grating device according to claim 10 is characterized in that the both sides of described every group of blade also are arranged with the blade of single horizontal direction width dimensions.
15. radiotherapy equipment grating device according to claim 11 is characterized in that the both sides of described every group of blade also are arranged with the blade of single horizontal direction width dimensions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206895243U CN201959425U (en) | 2010-12-30 | 2010-12-30 | Grating device of radiotherapy equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206895243U CN201959425U (en) | 2010-12-30 | 2010-12-30 | Grating device of radiotherapy equipment |
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| CN201959425U true CN201959425U (en) | 2011-09-07 |
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| CN2010206895243U Expired - Lifetime CN201959425U (en) | 2010-12-30 | 2010-12-30 | Grating device of radiotherapy equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553079A (en) * | 2010-12-30 | 2012-07-11 | 苏州雷泰医疗科技有限公司 | Grating device for radiation therapy equipment |
| CN103127616A (en) * | 2011-11-22 | 2013-06-05 | 苏州雷泰医疗科技有限公司 | Radiotherapy equipment grating |
| CN104759032A (en) * | 2015-04-08 | 2015-07-08 | 苏州雷泰医疗科技有限公司 | Grating device for radiotherapy device, control method thereof and radiotherapy device |
| CN111714791A (en) * | 2020-06-19 | 2020-09-29 | 新里程医用加速器(无锡)有限公司 | Radiotherapy device |
-
2010
- 2010-12-30 CN CN2010206895243U patent/CN201959425U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553079A (en) * | 2010-12-30 | 2012-07-11 | 苏州雷泰医疗科技有限公司 | Grating device for radiation therapy equipment |
| CN102553079B (en) * | 2010-12-30 | 2015-07-29 | 苏州雷泰医疗科技有限公司 | Grating device of radiotherapy equipment |
| CN103127616A (en) * | 2011-11-22 | 2013-06-05 | 苏州雷泰医疗科技有限公司 | Radiotherapy equipment grating |
| CN103127616B (en) * | 2011-11-22 | 2015-08-26 | 苏州雷泰医疗科技有限公司 | Radiotherapy equipment grating |
| CN104759032A (en) * | 2015-04-08 | 2015-07-08 | 苏州雷泰医疗科技有限公司 | Grating device for radiotherapy device, control method thereof and radiotherapy device |
| 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 |
| CN111714791A (en) * | 2020-06-19 | 2020-09-29 | 新里程医用加速器(无锡)有限公司 | Radiotherapy device |
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Granted publication date: 20110907 Effective date of abandoning: 20150729 |
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| RGAV | Abandon patent right to avoid regrant |