CN101195057A - Radiation therapy device - Google Patents
Radiation therapy device Download PDFInfo
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- CN101195057A CN101195057A CNA2007100774055A CN200710077405A CN101195057A CN 101195057 A CN101195057 A CN 101195057A CN A2007100774055 A CNA2007100774055 A CN A2007100774055A CN 200710077405 A CN200710077405 A CN 200710077405A CN 101195057 A CN101195057 A CN 101195057A
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- collimation body
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 28
- 230000002285 radioactive effect Effects 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000005855 radiation Effects 0.000 claims abstract description 23
- 238000009826 distribution Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000002560 therapeutic procedure Methods 0.000 description 8
- 230000001225 therapeutic effect Effects 0.000 description 7
- 230000001788 irregular Effects 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Radiation-Therapy Devices (AREA)
Abstract
The invention relates to a radiation therapy device, which comprises a shielding body, a source body and an alignment body which are arranged on the shielding body, a plurality of radioactive sources are loaded in the source body, a beam channel is arranged in the alignment body, the radioactive sources are focused on a common focus through the beam channel, the alignment bodies are more than one, which can relatively move, at least a group of through holes are arranged in the alignment bodies, the distributions of the through holes are the same with that of the radioactive sources in the source body, at least a group of through holes are arranged in an area with high latitude of the alignment bodies, at least a group of through holes are arranged in an area with low latitude in the alignment bodies. The end parts of the alignment bodies are ring-shaped curved bodies, and the alignment bodies are respectively connected with a power actuating mechanism, and the alignment bodies relatively rotate and move. Radiation irradiation can be automatically combined according to the need of a method of treatment in the process of treating, dynamic conformity of dose fields are achieved, the auxiliary time of radiation therapy is shortened, and the efficiency of radiation therapy is improved.
Description
Technical field
The present invention relates to a kind of radiotherapy equipment, relate in particular to a kind of radiotherapy unit that is used for gamma ray.
Background technology
At present, radiotherapy adopts the operation principle of rotating focus that patient's focus is turned round irradiation, and according to the shape and the position of patient body's inner disease foci, optimizes therapeutic scheme, selects the radiation beam of different-diameter respectively for use, satisfies the requirement of conformal therapy; In radiation therapy process; according to treatment plan; by changing the collimation body of different size; change the diameter of radiation beam; thereby form the different focusing target spots that focus on size, make the lesion tissue of rotating the accumulation place be subjected to the conform irradiation of maximal dose, health tissues is subjected to irradiation instantaneous, tolerance dose; thereby kill focus, protect perilesional health tissues, reach radiocurable purpose.The Chinese patent publication number is that the radiation device of radiation treatment of CN2676951Y discloses a kind of radiotherapy unit, this device comprises: shield, the source body, pre-collimation body, the helmet, driver part and therapeutic bed, the ray radial convergence of a plurality of radioactive sources is on a public focus of radiation appliance central axis in the body of source, the source body is connected with driver part respectively with pre-collimation body, many group through holes are identical with the distribution of radiation rule on one group of through hole on the pre-collimation body and the helmet, the aperture of every group of through hole is a specification of the same race on the helmet, the helmet docks with pre-collimation body by the mechanism that is located by connecting and is one, make the precollimator in the pre-collimation body aim at wherein one group of whole collimator, the helmet is connected on the therapeutic bed by bearing.Owing to have on the pre-collimation body of this device many group through holes arranged on one group of through hole, the helmet, they are identical with the distribution of radiation rule respectively, the ray of radioactive source focuses on the public focus by one group of through hole, form a kind of dosage field of form, this dosage field is difficult for and irregular focus conformal, to jeopardizing the protection of organ, influence radiocurable accuracy in the difficult realization therapeutic process; The helmet of this device is connected on the therapeutic bed; and dock with pre-collimation body and to be one; be the driven member that collimates body in advance, can not independently rotatablely move, when patient needs the ray focusing irradiation in different apertures; must shut down; manually change the position of helmet butt joint, in therapeutic process, can not realize the dynamically suitable shape of dosage field automatically; prolong radiocurable non-cutting time, reduced the efficient of treatment work.
Summary of the invention
The purpose of this invention is to provide a kind of radiotherapy unit, its technical problem that will solve is to realize the variation of radiation focusing center space dosage field distribution shape, improves radiocurable accuracy and accuracy, improves radiotherapy efficient.
For achieving the above object the present invention by the following technical solutions:
A kind of radiotherapy unit, comprise: shield, be located on the shield the source body and the collimation body, load a plurality of radioactive sources in the body of source, be provided with radiation channel in the collimation body, radioactive source focuses on the public focus by radiation channel, described collimation body is a plurality of, can relative displacement between the collimation body.
Be provided with at least one group of through hole in the described collimation body, the regularity of distribution of through hole is identical with the regularity of distribution of source body internal source.
Described at least one group of through hole can be positioned at the high latitude zone of collimation body or be positioned at the low latitudes zone of collimation body or be positioned at described middle latitude zone.
Can establish at least two group through holes in the described collimation body, and be arranged in any two zones in high latitude zone, low latitudes zone or these three zones, middle latitude zone of described collimation body.
Can establish at least three group through holes in the described collimation body, wherein have at least one group of through hole be positioned at the collimation body the high latitude zone, have at least one group of through hole to be positioned at the low latitudes zone of collimation body and have at least one group of through hole to be positioned at described middle latitude zone (being the zone between high latitude zone and the low latitudes zone); The end of described collimation body is the annular surface body, and the collimation body is connected with power drive mechanism respectively, makes between the collimation body to relatively rotate or move.
The intravital radioactive source in described source is concentrated and is distributed in the body of source.
Described power drive mechanism is a gear drive, comprising: gear, driving device, the collimation body is connected with the corresponding driving device by gear respectively.
Described power drive mechanism is a shaft transmission, comprising: axle, driving device; The collimation body is connected with the corresponding driving device by axle respectively.
Among the present invention, the intravital radioactive source in source is concentrated and is distributed, radiation channel is by the height Latitude Distribution in a plurality of collimation bodies, can select the arcing segmentation to focus on irradiation and the irradiation of high low latitudes combination type in the therapeutic process, form the space dosage field distribution of multiple shape respectively in the focusing center of radioactive source beam, realize the variation of radiation focusing center space dosage field distribution shape, the dosage field that satisfies the beam-focusing center distributes and irregular focus conformal, improves radiocurable accuracy and accuracy; The source body, respectively collimate body and be connected with power drive mechanism respectively, around the independent respectively rotation of same centre of gyration line, intravital radioactive source in source and the interior many group radiation channels of collimation body, in therapeutic process according to the needs of therapeutic scheme, automatically carry out the combination of irradiation beam, realize the dynamically suitable shape of dosage field, shortened radiocurable non-cutting time, improve radiotherapy efficient.
Description of drawings
Fig. 1 is an overall structure cutaway view of the present invention.
Fig. 2 is an overall structure front view of the present invention.
Fig. 3 is the front view of middle collimation body.
Fig. 4 is the cutaway view of middle collimation body.
Fig. 5 is the side view of middle collimation body.
Fig. 6 is the axonometric chart of middle collimation body.
Fig. 7 is the front view that collimates body eventually.
Fig. 8 is the cutaway view that collimates body eventually.
Fig. 9 is the side view that collimates body eventually.
Figure 10 is the axonometric chart that collimates body eventually.
Among the figure, the 1st, collimate body eventually, the 2nd, middle collimation body, the 3rd, the source body, the 11st, whole collimator, the 12nd, collimate the body gear eventually, the 13rd, collimate the body drive mechanism eventually, the 21st, intermediate collimator, the 22nd, middle collimation body gear, the 23rd, middle collimation body drive mechanism, the 31st, radioactive source, the 32nd, source body gear, the 33rd, source body drive mechanism, the 40th, centre of gyration line, the 101st, pedestal, the 102nd, shield, the 103rd, shield door.
The specific embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing embodiment.
As Fig. 1, shown in Figure 2, in the present invention is a kind of radiotherapy unit, comprise: pedestal 101, be connected the shield 102 on the pedestal 101, be located at the source body 3 on the shield 102 and collimate body 1 eventually, collimation body 2 in the middle of being provided with between source body 3 and the whole collimation body 1, source body 3, middle collimation body 2 is connected with power drive mechanism respectively with whole collimation body 1, each other can be around same centre of gyration line 40 relatively independent rotations, an end of fan-shaped curved body loads a plurality of radioactive sources 31 in the source body 3, a plurality of radioactive sources 31 in the source body 3 are concentrated and are distributed at least one zone, be respectively equipped with intermediate collimator 21 and whole collimator 11 in middle collimation body 2 and the whole collimation body 1, be provided with through hole in the collimator and form radiation channel, the regularity of distribution of radiation channel is identical with the regularity of distribution of source body 3 internal sources 31, and the radioactive source 31 in the source body 3 focuses on the same centre of gyration line 40 by intermediate collimator 21 and whole collimator 11; The outside of source body 3, middle collimation body 2 and whole collimation body 1 is provided with shield door 103.
As Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, establish in the annular sphere body of middle collimation body 2 that three group screens block, the combination of the combination of one group of intermediate collimator 21, one group of high latitude intermediate collimator 21 and low latitudes shield plug, one group of high latitude shield plug and low latitudes intermediate collimator 21, above-mentioned two combinations are called for short high latitude combination and low latitudes combination respectively, three group screens block and are distributed in the spherical surface body, and 21 groups of intermediate collimator, high latitude combination and low latitudes combination are distributed in respectively between the shield plug group.Intermediate collimator 21 is cylinders that central authorities are provided with through hole, in the through hole established form radiation channel, shield plug is to be processed into solid cylinder by heavy metal material, is provided with six groups of through holes in the middle collimation body 2, collimates in the through hole of body 2 in the middle of intermediate collimator 21 and shield plug grouping are installed in.The gathering center of collimation body 2 in the middle of crossing, and be made as zero latitude perpendicular to the end face of centre of gyration line 40, intermediate collimator 21 near zero latitude area be a low latitudes intermediate collimator 21, is high latitude intermediate collimator 21 away from the intermediate collimator 21 of zero latitude area.
As Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, being provided with whole collimator 11 of four groups of different sizes and four group screens eventually in the annular sphere body of collimation body 1 blocks, four groups of whole collimators 11 and four group screens block and are distributed in the spherical surface body, be provided with through hole in the whole collimator 11 and form radiation channel, radioactive source 31 in the source body 3 is focused on the public focus, and the shield plug in the collimation body 1 is solid cylinder eventually.
Among the present invention, a plurality of radioactive sources 31 are fan-shaped concentrated distribution in the source body 3, many group radiation channels are provided with shield plug by high low latitudes respectively in the middle collimation body 2, can select the arcing segmentation to focus on irradiation and high latitude combination and low latitudes combination irradiation in the therapeutic process, form the space dosage field distribution of multiple shape respectively in the focusing center of radioactive source 31 beams, realize the variation of radiation focusing center space dosage field distribution shape, the dosage field that satisfies the beam-focusing center distributes and irregular focus conformal, improves radiocurable accuracy and accuracy; Source body 3, middle collimation body 2 and whole collimation body 1 are connected with power drive mechanism respectively, the three is around the independent respectively rotation of same centre of gyration line 40, radioactive source 31 in the source body 3 collimates body 2 and organizes radiation channels in the collimation body 1 more eventually with middle, in therapeutic process according to the needs of therapeutic scheme, automatically carry out the combination of irradiation beam, realize the dynamically suitable shape of dosage field, shortened radiocurable non-cutting time, improve radiotherapy efficient.
In a second embodiment, source body 3, middle collimation body 2 and whole collimation body 1 are the annular sphere body, source body 3, middle collimation body 2 are connected with axle respectively with an end that collimates body 1 eventually, three axle edge shell types are arranged, and be connected with power drive mechanism respectively, power drive mechanism is a shaft transmission, can rotate by driving member gear drive axle, also can pass through driving member synchronous cog belt drive shaft turns, other structure is identical with the structure of describing in first embodiment.
In the 3rd embodiment, comprise in the annular sphere body of middle collimation body 2: one group of intermediate collimator that is provided with through hole 21, one group of high latitude intermediate collimator 21, one group of low latitudes intermediate collimator 21, above-mentioned three groups of collimators along the circumferential direction are distributed in the spherical surface body; 21 groups of high latitude intermediate collimator promptly only are provided with intermediate collimator 21 in the high latitude zone, be the entity structure of middle collimation body 2 in the low latitudes zone; 21 groups of low latitudes intermediate collimator promptly only are provided with intermediate collimator 21 in the low latitudes zone, be the entity structure of middle collimation body 2 in the high latitude zone; Other structure is identical with the structure of describing in first embodiment.
Claims (9)
1. radiotherapy unit, comprise shield, be located at source body and collimation body on the shield, load a plurality of radioactive sources in the body of described source, be provided with radiation channel in the described collimation body, described radioactive source focuses on the public focus by radiation channel, it is characterized in that described collimation body is a plurality of, can relative displacement between the collimation body.
2. radiotherapy unit according to claim 1 is characterized in that, the intravital radioactive source in described source is concentrated and is distributed in the body of source.
3. radiotherapy unit according to claim 1 is characterized in that, is provided with at least one group of through hole in the described collimation body, and the regularity of distribution of through hole is identical with the regularity of distribution of source body internal source.
4. radiotherapy unit according to claim 3 is characterized in that, described at least one group of through hole is positioned at the high latitude zone of collimation body or is positioned at the low latitudes zone of collimation body or is positioned at described middle latitude zone.
5. radiotherapy unit according to claim 3, it is characterized in that, be provided with at least two group through holes in the described collimation body, and be arranged in any two zones in regional or these three zones, middle latitude zone of high latitude zone, the low latitudes of described collimation body.
6. radiotherapy unit according to claim 3, it is characterized in that, be provided with at least three group through holes in the described collimation body, wherein have at least one group of through hole be positioned at the collimation body the high latitude zone, have at least one group of through hole to be positioned to collimate the low latitudes zone of body and have at least one group of through hole to be positioned at described middle latitude zone.
7. radiotherapy unit according to claim 1 is characterized in that, the end of described collimation body is the annular surface body, and the collimation body is connected with power drive mechanism respectively, makes between the collimation body to relatively rotate or move.
8. radiotherapy unit according to claim 7 is characterized in that described power drive mechanism is a gear drive, comprises gear and driving device, and described collimation body is connected with the corresponding driving device by gear respectively.
9. radiotherapy unit according to claim 7 is characterized in that described power drive mechanism is a shaft transmission, comprises axle and driving device; Described collimation body is connected with the corresponding driving device by axle respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100774055A CN101195057A (en) | 2007-11-27 | 2007-11-27 | Radiation therapy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100774055A CN101195057A (en) | 2007-11-27 | 2007-11-27 | Radiation therapy device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101195057A true CN101195057A (en) | 2008-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100774055A Pending CN101195057A (en) | 2007-11-27 | 2007-11-27 | Radiation therapy device |
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| Country | Link |
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| CN (1) | CN101195057A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102770180A (en) * | 2009-12-22 | 2012-11-07 | 医科达公司 | Sequencing sector fields |
| CN103052425A (en) * | 2010-09-01 | 2013-04-17 | 住友重机械工业株式会社 | Neutron beam irradiation system |
| CN101770036B (en) * | 2008-12-26 | 2013-11-27 | 深圳市海博科技有限公司 | Single-source dose field measurement device |
| WO2015096498A1 (en) * | 2013-12-25 | 2015-07-02 | 深圳市奥沃医学新技术发展有限公司 | Local switch source apparatus for multi-source radiation therapy device and radiation therapy device |
| CN105854192A (en) * | 2016-05-31 | 2016-08-17 | 武汉瑞祥安精密制造有限责任公司 | High-precision combined type gamma knife collimator and machining method therefore |
| CN111408068A (en) * | 2020-03-24 | 2020-07-14 | 玛西普医学科技发展(深圳)有限公司 | Head-body dual-purpose multifunctional gamma knife treatment head |
-
2007
- 2007-11-27 CN CNA2007100774055A patent/CN101195057A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770036B (en) * | 2008-12-26 | 2013-11-27 | 深圳市海博科技有限公司 | Single-source dose field measurement device |
| CN102770180A (en) * | 2009-12-22 | 2012-11-07 | 医科达公司 | Sequencing sector fields |
| CN102770180B (en) * | 2009-12-22 | 2015-09-30 | 医科达公司 | Field, rank region |
| CN103052425A (en) * | 2010-09-01 | 2013-04-17 | 住友重机械工业株式会社 | Neutron beam irradiation system |
| CN107080902A (en) * | 2010-09-01 | 2017-08-22 | 住友重机械工业株式会社 | Neutron beam irradiation system |
| CN107080902B (en) * | 2010-09-01 | 2019-10-18 | 住友重机械工业株式会社 | Neutron beam irradiation system |
| WO2015096498A1 (en) * | 2013-12-25 | 2015-07-02 | 深圳市奥沃医学新技术发展有限公司 | Local switch source apparatus for multi-source radiation therapy device and radiation therapy device |
| CN105854192A (en) * | 2016-05-31 | 2016-08-17 | 武汉瑞祥安精密制造有限责任公司 | High-precision combined type gamma knife collimator and machining method therefore |
| CN105854192B (en) * | 2016-05-31 | 2022-08-23 | 武汉瑞祥安精密制造有限责任公司 | High-precision combined gamma knife collimating body and processing method thereof |
| CN111408068A (en) * | 2020-03-24 | 2020-07-14 | 玛西普医学科技发展(深圳)有限公司 | Head-body dual-purpose multifunctional gamma knife treatment head |
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Open date: 20080611 |