CN105031832A - Intensity modulated radiation therapy apparatus - Google Patents
Intensity modulated radiation therapy apparatus Download PDFInfo
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- CN105031832A CN105031832A CN201510536246.5A CN201510536246A CN105031832A CN 105031832 A CN105031832 A CN 105031832A CN 201510536246 A CN201510536246 A CN 201510536246A CN 105031832 A CN105031832 A CN 105031832A
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- housing
- door
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
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- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
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Abstract
The invention provides an intensity modulated radiation therapy apparatus, including: a housing which has a reception space and a shielding cavity; a shielding article which is filled inside the shielding cavity; a rotary source carrier which is received inside the reception space; a shield rod which is received inside the rotary source carrier; a source body which is received at the bottom end of the shielding rod and used for bearing a radioactive source; a first drive part which is arranged on the housing and drives the rotary source carrier to rotate around a rotation shaft of the rotary source carrier such that the radioactive source switches between an ON position and an OFF position; a pre-alignment body which is arranged at an emission end of the radioactive source and includes an alignment hole, directly facing the radioactive sourcewhen the radioactive source is at the ON position, and the alignment hole is arranged facing towards the radioactive source; a shielding door which is arranged on one side of the pre-alignment body far from the radioactive source and is arranged facing towards the radioactive source; and a multi-blade collimator which is arranged outside of the housing and faces towards the shielding door. The invention also provides an intensity modulated radiation therapy system.
Description
Technical field
The present invention relates to radiotherapy instrument field, particularly relate to a kind of conformal modulating radiotherapy device.
Background technology
3 dimensional conformal radiation therapy is a kind of high-precision radiotherapy, utilize the tumor structure of CT image reconstruction three-dimensional, by arranging a series of different irradiation field at different directions, and adopt and consistent with focus shape conformally keep off lead, make the distribution shape of high dose area upper consistent with target region shape at three-dimensional (all around, above-below direction), make reducing by amount of perilesional normal structure simultaneously.
For three dimensional conformal radiation therapy system, treatment head is the part of core.Existing conformal therapy head many uses clinac is as radioactive source.But before carrying out the equipment of Linear Accelerator Radiotherapy, cost is higher, and the radiocurable fixed assets investment of cobalt-60 treating machines is lower, therefore, part manufacturer and consumer are still ready to select cobalt-60 treating machines.But existing cobalt-60 treating machines complex structure and very heavy, is unfavorable for installing and transport.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of conformal modulating radiotherapy device.
One embodiment of the invention provides a kind of conformal modulating radiotherapy device, comprising: housing, is formed with a receiving space and a shielding cavity; Screen, is filled in described shielding cavity; Rotate and carry source body, be housed in described receiving space; Shielding rod, is housed in described rotation and carries in the body of source; Source body, is housed in the bottom of described shielding rod, for carrying radioactive source; First drive division, arranges on the housing, drives described rotation to carry source body and rotate around its rotating shaft, and described radioactive source is switched increasing income between position and Guan Yuanwei; Pre-collimated body, is arranged on the exit end of described radioactive source, comprises a collimating aperture, when described radioactive source is being increased income, described collimating aperture and described radioactive source just right; Shield door, is arranged on the side of described pre-collimated body away from described radioactive source, and aligns the setting of described radioactive source; And multi-diaphragm collimator, be arranged on outside described housing, and just right with described shield door.
Another embodiment of the present invention provides a kind of conformal modulating radiotherapy system, comprise cylinder frame and conformal modulating radiotherapy device that at least one is above-mentioned, described conformal modulating radiotherapy device to be arranged in cylinder frame and can to follow described cylinder frame and rotates, two connecting portions are relatively set with outside the housing of described conformal modulating radiotherapy device, described connecting portion and described cylinder frame are slidably connected, make described conformal modulating radiotherapy device can in the central axis of described cylinder frame on move.
Conformal modulating radiotherapy apparatus structure of the present invention is simple and compact, easily carries out installing and transporting.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of conformal modulating radiotherapy device that the embodiment of the present invention provides;
Fig. 2 is the generalized section of the conformal modulating radiotherapy device of Fig. 1;
Fig. 3 is the structural representation of the shield door of the conformal modulating radiotherapy device of Fig. 1;
Fig. 4 is the structural representation of a kind of conformal modulating radiotherapy system that the embodiment of the present invention provides.
Detailed description of the invention
Below in conjunction with detailed description of the invention, more detailed description is further done to technical scheme of the present invention.Obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, all should belong to the scope of protection of the invention.
Refer to Fig. 1 and Fig. 2, the invention provides the conformal modulating radiotherapy device 100 of an embodiment, it comprises housing 10, screen 20, rotates and carry source body 30, shielding rod 40, source body 50, first drive division 60, pre-collimated body 80, shield door 90, multi-diaphragm collimator 110, second drive division (not shown) and the 3rd drive division 120.Described housing 10 is accommodated described screen 20, is rotated and carry source body 30, shielding rod 40, source body 50, second drive division, pre-collimated body 80 and shield door 90.Described screen 20 and the described housing of part 10 carry source body 30 around described rotation.Described shielding rod 40 and source body 50 are housed in described rotation and carry in source body 30, and described source body 50 is positioned at excellent 40 bottoms of described shielding.Under the driving of described first drive division 60, described rotation is carried source body 30 and described shielding rod 40 and source body 50 can be driven to rotate in described housing 10.Described pre-collimated body 80 is arranged between described source body 50 and shield door 90.Described multi-diaphragm collimator 110 is arranged on outside described housing 10, and aligns described shield door 90.Second drive division drives described shield door 90 and multi-diaphragm collimator 110 to rotate, and described 3rd drive division 120 carries out conformal adjustment for driving described multi-diaphragm collimator 110.
Be understandable that, in other embodiments, described shield door 90 can also be arranged on outside housing 10.
Described housing 10 is support members of whole conformal modulating radiotherapy device 100, and its external shape can carry out particular design according to device requirement, functional requirement etc., better to realize therapeutic effect.In the present embodiment, described housing 10 has irregular profile, and be formed with a receiving space 11 and a shielding cavity 12, described shielding cavity 12 is for accommodating described screen 20, described receiving space 11, for accommodating miscellaneous part, carries source body 30, shielding rod 40, source body 50, pre-collimated body 80 and shield door 90 as rotated.More specifically, described housing 10 comprises integrated Lower Half 13 and the first half 14.In the present embodiment, the profile of described Lower Half 13 is rectangular-shaped, and the profile of the described first half 14 is roughly in round table-like.Described receiving space 11 comprises the first receiving space 111 and the second receiving space 112 be interconnected, described first receiving space 111 is formed in the Lower Half 13 of described housing 10, described second receiving space 112 is formed in the first half 14 of described housing 10, and described second receiving space 112 is formed with a circular open 113 on described housing 10.Described first receiving space 111 accommodates described pre-collimated body 80 and shield door 90, and described second receiving space 112 is accommodated described rotation and carried source body 30, shielding rod 40, source body 50.Separated by the sidewall of partial shell 10 between described shielding cavity 12 and described second receiving space 112.In the present embodiment, described shielding cavity 12 and described partial shell 10 side wall ring are around described second receiving space 112.In addition, the bottom surface of described housing 10 Lower Half 13 offers a through hole 15, shine outside housing for the ray through shield door 90.
Described screen 20 is filled in described shielding cavity 12, makes screen 20 and housing 10 that rotational source body 50 is wrapped in centre, plays shielding action.In the present embodiment, described screen 20 is plumbous.Be appreciated that in other embodiments, the better material of other shielding propertiess can be filled in housing 10 inside.
Described rotation is carried source body 30 and is arranged in described second receiving space 112 by bearing (not shown), and is driven by described first drive division 60 and rotate.In the present embodiment, described rotation carries source body 30 in cylindric, and described rotation is carried in source body 30 and offered eccentric orfice 31.
Described shielding rod 40 is housed in described eccentric orfice 31, and follows described rotation and carry source body 30 and rotate.In the present embodiment, the material of described shielding rod 40 is tungsten or tungsten alloy.
Described source body 50 is arranged on the bottom of described shielding rod 40 and is housed in described eccentric orfice 31, for carrying radioactive source.In the present embodiment, source body 50, in cuboid, is assembled by many Co-60 sources and is formed, and by the largest face of source body 50 just to therapeutic community, when conformal modulating radiotherapy device 100 rotates with cylinder (Fig. 3 will further describe), the penumbra of all directions will be made less.Shielding rod 40 and source body 50 can turn round with rotational source carrier 30 as one kind.
Described first drive division 60 is arranged on described housing 10, carries source body 30 rotate around its own rotation axis to drive described rotation, thus described radioactive source is switched increasing income between position and Guan Yuanwei.More specifically, the opening side that the first drive division 60 is fixed on described second receiving space 112 is stated.In the present embodiment, described first drive division 60 is motors, and described motor rotates by rotating a year source body 30 described in motor bevel gear driving.
Described pre-collimated body 80 is fixedly installed on the exit end of described radioactive source, and is formed with a collimating aperture 81, for the ray of radioactive source described in preliminary correcting.Carrying source body 30 when described rotation rotates to ad-hoc location, and when namely to increase income, the radioactive source on described source body 50 aims at the collimating aperture 81 of described pre-collimated body 80.And rotating to another ad-hoc location when source body 30 is carried in described rotation, when namely closing position, source, radioactive source departs from described collimating aperture 81.
Incorporated by reference to Fig. 3, described shield door 90 is arranged on the side of described pre-collimated body 80 away from described radioactive source, and aligns the setting of described radioactive source.Described shield door 90, for when described radioactive source is positioned at Guan Yuanwei, plays shielding action.Especially, when treating head and being in non-treatment state, carry source body 30, pre-collimated body 80 and described shield door 90 by described rotation, multiple shield is accomplished to ray, ensure safety of surrounding environment.In the present embodiment, the manufactured materials of described shield door 90 is tungsten or its alloy.Concrete, described shield door 90 comprises two fixing door-plates, 91, two mobile door-plates 92 and a doorframe (not shown), and described two fixing door-plates 91 are vertically rabbeted on described mobile door-plate 92 respectively in same plane.Described fixing door-plate 91 is fixedly connected with described doorframe, and described mobile door-plate 92 is connected with described doorframe by rail plate 93, and described mobile door-plate 92 can move relative to described doorframe.Described doorframe is connected with described housing 10 by bearing, and described shield door 90 can be rotated relative to described housing 10.When described mobile door-plate 92 moves relative to described doorframe, namely the middle intersection location of described mobile door-plate 92 and fixing door-plate 91 can enclose a square aperture, by regulating the position of mobile door-plate 92, adjustable openings of sizes.When treating, described openings of sizes is opened to predetermined width, and ensures do not have unexpected ray to overflow.And when non-treatment state, close rotational source body 50, pre-collimated body 80, shield door 90 successively, multiple shield is accomplished to ray.
Described multi-diaphragm collimator 110 is arranged on outside described housing 10, and just right with described shield door 90.Through hole 15 on described housing 10 bottom surface aligns the collimating aperture 81 of described shield door 90 and described pre-collimated body 80, and described multi-diaphragm collimator 110 is arranged on described through hole 15 both sides.In the present embodiment, described multi-diaphragm collimator 110 also can rotate around the central axis of collimating aperture 81, makes the conversion of multi-diaphragm collimator 110 more flexible.More specifically, described second drive division is arranged on described housing 10, and described shield door 90 and multi-diaphragm collimator 110 can be driven to rotate relative to described housing simultaneously, thereby, it is possible to provide more ray emergent shape.Described multi-diaphragm collimator 110 is connected with the 3rd drive division 120, and described 3rd drive division 120 is made up of multiple small machine, for driving each blade of described multi-diaphragm collimator 110 to move, conformal to complete.Be understandable that, in certain embodiments, described multi-diaphragm collimator 110 and described second drive division also can be arranged in described housing 10.
Refer to Fig. 4, the present invention also provides a kind of conformal modulating radiotherapy system 200, and it comprises cylinder frame 201 and conformal modulating radiotherapy device 100 that at least one is above-mentioned.Described conformal modulating radiotherapy device 100 is arranged in cylinder frame 201, and can follow described cylinder frame 201 and rotate.In addition, two connecting portions 17 (referring to Fig. 1) are relatively set with outside the housing 10 of described conformal modulating radiotherapy device 100, described connecting portion 17 is slidably connected with described cylinder frame 201, make described conformal modulating radiotherapy device 100 can in the central axis of described cylinder frame 201 on move, thus change angle of incidence by axial wobble.
Conformal modulating radiotherapy device 100 of the present invention, structure is simple and compact, easily carries out installing and transporting.
The better embodiment be only in embodiment of the present invention disclosed above, certainly can not limit interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (10)
1. a conformal modulating radiotherapy device, comprising:
Housing, is formed with a receiving space and a shielding cavity;
Screen, is filled in described shielding cavity;
Rotate and carry source body, be housed in described receiving space;
Shielding rod, is housed in described rotation and carries in the body of source;
Source body, is housed in the bottom of described shielding rod, for carrying radioactive source;
First drive division, arranges on the housing, drives described rotation to carry source body and rotate around its rotating shaft, and described radioactive source is switched increasing income between position and Guan Yuanwei;
Pre-collimated body, is arranged on the exit end of described radioactive source, comprises a collimating aperture, when described radioactive source is being increased income, described collimating aperture and described radioactive source just right;
Shield door, is arranged on the side of described pre-collimated body away from described radioactive source, and aligns the setting of described radioactive source; And
Multi-diaphragm collimator, is arranged on outside described housing, and just right with described shield door.
2. conformal modulating radiotherapy device according to claim 1, it is characterized in that, described housing comprises Lower Half and the first half, described receiving space comprises the first receiving space and the second receiving space that are interconnected, described first receiving space is formed in the Lower Half of described housing, described second receiving space is formed in the first half of described housing, described shielding cavity is around described second receiving space, described pre-collimated body and shield door are housed in described first receiving space, and source body, shielding rod are carried in described rotation, source body is housed in described second receiving space.
3. conformal modulating radiotherapy device according to claim 2, it is characterized in that, the bottom surface of described Lower Half offers a through hole, the collimating aperture of shield door described in described through-hole alignment and described pre-collimated body, described multi-diaphragm collimator is arranged on described through hole both sides.
4. conformal modulating radiotherapy device according to claim 2, is characterized in that, described Lower Half is rectangular-shaped, and the described first half is roughly in round table-like.
5. conformal modulating radiotherapy device according to claim 1, it is characterized in that, described rotation is carried on the body of source and is offered eccentric orfice, described shielding rod and source body are housed in described eccentric orfice, and follow described rotation and carry source body and rotate, when described rotation carries source body rotation to ad-hoc location, the radioactive source on the body of described source aims at the collimating aperture of described pre-collimated body.
6. conformal modulating radiotherapy device according to claim 1, comprises the second drive division further, is in transmission connection with described shield door and multi-diaphragm collimator, rotates relative to described housing to drive described shield door and multi-diaphragm collimator simultaneously.
7. conformal modulating radiotherapy device according to claim 6, is characterized in that, described first drive division is fixed on the opening side of described second receiving space, and described second drive division is arranged on housing.
8. conformal modulating radiotherapy device according to claim 1, it is characterized in that, described shield door comprises two fixing door-plates, two mobile door-plates and a doorframe, described two fixing door-plate interlockings are on described mobile door-plate, described fixing door-plate is fixedly connected with described doorframe, described mobile door-plate is connected with described doorframe by rail plate, and described mobile door-plate can move along described rail plate relative to described doorframe, described doorframe is connected with described housing by bearing, when described mobile door-plate moves relative to described doorframe, the centre position of described mobile door-plate and fixing door-plate forms an opening, the size of described opening is by regulating the position of mobile door-plate to adjust.
9. conformal modulating radiotherapy device according to claim 1, is characterized in that, described multi-diaphragm collimator and one the 3rd drive division are in transmission connection, and carry out conformal adjustment under the driving of described 3rd drive division.
10. a conformal modulating radiotherapy system, comprise cylinder frame and at least one conformal modulating radiotherapy device as described in claim 1 ~ 9 any one, described conformal modulating radiotherapy device to be arranged in cylinder frame and can to follow described cylinder frame and rotates, two connecting portions are relatively set with outside the housing of described conformal modulating radiotherapy device, described connecting portion and described cylinder frame are slidably connected, make described conformal modulating radiotherapy device can in the central axis of described cylinder frame on move.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764384.2A CN109107053B (en) | 2015-08-27 | 2015-08-27 | Intensity modulated radiotherapy device |
| CN201510536246.5A CN105031832B (en) | 2015-08-27 | 2015-08-27 | Conformal modulating radiotherapy device |
| PCT/CN2016/100811 WO2017032345A1 (en) | 2015-08-27 | 2016-09-29 | Conformal intensity-modulated radiation therapy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510536246.5A CN105031832B (en) | 2015-08-27 | 2015-08-27 | Conformal modulating radiotherapy device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810764384.2A Division CN109107053B (en) | 2015-08-27 | 2015-08-27 | Intensity modulated radiotherapy device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105031832A true CN105031832A (en) | 2015-11-11 |
| CN105031832B CN105031832B (en) | 2018-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510536246.5A Active CN105031832B (en) | 2015-08-27 | 2015-08-27 | Conformal modulating radiotherapy device |
| CN201810764384.2A Active CN109107053B (en) | 2015-08-27 | 2015-08-27 | Intensity modulated radiotherapy device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810764384.2A Active CN109107053B (en) | 2015-08-27 | 2015-08-27 | Intensity modulated radiotherapy device |
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| CN (2) | CN105031832B (en) |
| WO (1) | WO2017032345A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017032345A1 (en) * | 2015-08-27 | 2017-03-02 | 西安大医数码技术有限公司 | Conformal intensity-modulated radiation therapy device |
| CN108478942A (en) * | 2018-05-10 | 2018-09-04 | 江南大学附属医院 | A kind of oncology radiotherapeutic positioning device |
| WO2019109688A1 (en) * | 2017-12-05 | 2019-06-13 | 西安大医集团有限公司 | Focused radiotherapy device and apparatus |
| CN111714791A (en) * | 2020-06-19 | 2020-09-29 | 新里程医用加速器(无锡)有限公司 | Radiotherapy device |
| WO2022121926A1 (en) * | 2020-12-09 | 2022-06-16 | 西安大医集团股份有限公司 | Source turn-off device and treatment head |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018191852A1 (en) * | 2017-04-17 | 2018-10-25 | 西安大医数码技术有限公司 | Source removing and introducing tooling, smart cart and source removing and introducing system |
| CN107837465B (en) * | 2017-11-21 | 2024-05-14 | 西安大医集团股份有限公司 | Source guiding device and system |
| CN113813514B (en) * | 2020-06-19 | 2024-09-17 | 西安大医集团股份有限公司 | Source guiding assembly |
| US11698351B1 (en) | 2022-07-29 | 2023-07-11 | King Abdulaziz University | Gamma radiography system and method of using a gamma radiography system |
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- 2015-08-27 CN CN201810764384.2A patent/CN109107053B/en active Active
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| 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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Also Published As
| Publication number | Publication date |
|---|---|
| WO2017032345A1 (en) | 2017-03-02 |
| CN109107053A (en) | 2019-01-01 |
| CN105031832B (en) | 2018-08-21 |
| CN109107053B (en) | 2020-09-08 |
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Address after: 710000, No. 66 Fengcheng twelve Road, Xi'an City, Shaanxi, 66, 28, building 1, unit 3, international business center. Applicant after: CYBERMED RADIOTHERAPY TECHNOLOGIES Co.,Ltd. Address before: 710000, No. 66 Fengcheng twelve Road, Xi'an City, Shaanxi, 66, 28, building 1, unit 3, international business center. Applicant before: CYBERMED RADIOTHERAPY TECHNOLOGIES Co.,Ltd. Address after: 710000, No. 66 Fengcheng twelve Road, Xi'an City, Shaanxi, 66, 28, building 1, unit 3, international business center. Applicant after: CYBERMED RADIOTHERAPY TECHNOLOGIES Co.,Ltd. Address before: 710000, No. 66 Fengcheng 12 road, Xi'an City, Shaanxi, 66, 28, building 1, unit 17, international business center. Applicant before: CYBERMED TECHNOLOGIES (XI'AN) Co.,Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 710000 Unit 1, Unit 3, Room 10301, Building 28, Pioneer International City Business Center, 66 Fengcheng 12 Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: Xi'an Dayi Group Co.,Ltd. Address before: 710000 Unit 1, 3 Floors, Building 28, International City Business Center, 66 Fengcheng Road, Jingkai District, Xi'an City, Shaanxi Province Patentee before: CYBERMED RADIOTHERAPY TECHNOLOGIES Co.,Ltd. |