CN2676951Y - Radiation therapy radiator - Google Patents
Radiation therapy radiator Download PDFInfo
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- CN2676951Y CN2676951Y CN 200320104265 CN200320104265U CN2676951Y CN 2676951 Y CN2676951 Y CN 2676951Y CN 200320104265 CN200320104265 CN 200320104265 CN 200320104265 U CN200320104265 U CN 200320104265U CN 2676951 Y CN2676951 Y CN 2676951Y
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- radiation
- helmet
- source
- collimation
- collimation body
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Abstract
The utility model discloses a radiation therapy radiator, comprising a shield body(1), source body(2), a pre-collimating body(4), a headgear(7), driving members, and a treatment couch(12). A plurality of the rays of the radiation source(3) inside of the source body(2) focus on the common focal point(20) of the central axis line of the radiator. The source body (2) and the pre-collimating body(4) are respectively connected with the driving members. The pre-collimating device(5) positioned on the pre-collimating body(4) and a final collimating device(8) positioned on the headgear (7) have the same distribution rule with the radiation source. The headgear(7) is in butt-joint with the pre-collimating body(4) via a positioning connecting mechanism to form into a body and make the pre-collimating device(5) inside the pre-collimating body(4) align a group of the final collimating devices(8). The headgear (7) is connected with the treatment couch(12) via the bearing(9). The utility model has the advantages of high focusing accuracy for the radiation source(3) and good therapeutic effect.
Description
Technical field
This utility model relates to a kind of radiotherapy unit.
Background technology
What radiotherapy unit adopted is the operation principle of rotating focus, in existing radiation appliance, is distributed with a plurality of radiation paths on the body of revolution source, and radioactive source and precollimator are arranged in the radiation paths.The collimator in the different apertures of many groups is housed on the pre-collimation body of body inside, source, the distribution mode of radiation paths is identical on every group of collimator and the source body, the ray of radioactive source focuses on the public focus by the endoporus of precollimator and collimator, and this focus is positioned on source body and the collimation body axis of rotation.Chinese patent CN1126622A discloses " a kind of method of changing ray beam diameter and radiating element ", it is the method and the radiating element of conversion lonizing radiation beam diameter in a kind of medical radiotherapy equipment, a plurality of radiation paths are arranged in the body of source, radioactive source and precollimator are arranged in the radiation paths, collimator in the some groups of different apertures that distribute on the symmetric collimation body along central shaft, the distribution of every group of collimator is identical with the regularity of distribution of radioactive source on the body of source, needs revolution collimation body according to treatment, make one group of collimator-alignment precollimator in a certain aperture, can change the size of ray beam diameter.Its weak point is: because the gyration of source body and collimation body is driven by two groups of drive disk assemblies respectively, in the rotating focus process, make the endoporus center of collimator on precollimator on the body of source and the collimation body can not keep aliging, the radiation paths center of radioactive source is not point-blank, influenced ray focusing accuracy on public focus of radioactive source, the dose value that the actual exposure dose value that focus is subjected to provides less than treatment plan, and strengthened the deviation of the distribution of the distribution of exposure dosage field and the dosage field that treatment plan provides, thereby reduced therapeutic effect.
Summary of the invention
In order to improve the ray focusing precision of radioactive source, this utility model provides a kind of radiation device of radiation treatment that ray accurately focuses on the public focus, therapeutic effect is good that makes the multi beam radioactive source.
The technical scheme that its technical problem that solves this utility model adopts is: shield, the source body, pre-collimation body, the helmet, source body driver part, pre-collimation body driver part, 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 source body driver part, the pre-collimation body of body inside, source is connected with pre-collimation body driver part, precollimator with radioactive source same distribution rule is arranged on the pre-collimation body, at least one group of whole collimator is arranged on the helmet, whole collimator is identical with the distribution of radiation rule, the centre of whole collimator is a ray channel, the helmet can dock separably with pre-collimation body by the mechanism that is located by connecting and be 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.The mechanism that is located by connecting is separately positioned on the helmet and the pre-collimation body.Be provided with position-limit mechanism between the helmet and the therapeutic bed, the helmet is provided with spacing hole, and therapeutic bed is provided with the Spring Card pearl, and spacing hole matches with the Spring Card pearl during treatment location.Pre-collimation body is provided with the shielding rod with radioactive source same distribution rule.Convex edge on the pre-collimation body end face is embedded in heavy metal material.
The beneficial effects of the utility model are, because docking with pre-collimation body, the helmet is one, in the therapeutic process of rotating focus, whole collimator in the helmet is consistent with the pre-radiation paths that collimates the precollimator in the body, therefore guaranteed ray focusing accuracy on public focus of radioactive source, the distribution of the dose value of the actual irradiation that focus is subjected to and dosage field and dose value that treatment plan provides and the distribution of dosage field are consistent, have improved therapeutic effect.
Description of drawings
Fig. 1 is the longitudinal profile structural representation of radiation device of radiation treatment.
The longitudinal profile structural representation of radiation appliance when Fig. 2 treats for this device.
Fig. 3 is the preceding lonizing radiation channel design sketch map of this device treatment.
Lonizing radiation channel design sketch map when Fig. 4 treats for this device.
Fig. 5 is the pre-collimation body structure sketch map of this device.
Among the figure: 1. shield, 2. source body, 3. radioactive source, 4. pre-collimation body, 5. precollimator, 6. heavy metal material, the 7. helmet, 8. whole collimator, 9. bearing, 10. positioning convex, 11. detent, 12. therapeutic bed, 13. shielding rods, 15. Spring Card pearls, 20. public focus.
The specific embodiment
Referring to Fig. 1 to Fig. 5, radiation device of radiation treatment comprises shield 1, source body 2, collimates body 4, the helmet 7 in advance, and they have common axis; Being shaped as of shield 1 and source body 2 is hollow spherical, source body 2 is installed in the inside of shield 1, its outer surface cooperates with the internal surface gaps of shield 1, load about 30 radioactive sources 3 on the source body 2, radioactive source 3 is sealed in brill-60 granule in the involucrum of source, radioactive source 3 is distributed on the source body 2 by the helix Equal round, and lonizing radiation are by penetrating from radially aiming at a public focus 20 in the aperture of source involucrum one end, and public focus 20 is positioned on the axis of radiation appliance.Pre-collimation body 4 is installed in the inside of source body 2, its outer surface cooperates with the internal surface gaps of source body 2, the pre-hollow spherical crown that end face has the convex edge that is shaped as that collimates body 4, a positioning convex 10 is arranged on its inner face, 13 and one groups of precollimators 5 of one set of shield rod are arranged on the pre-collimation body 4, the center through hole of precollimator 5 is the lonizing radiation passage, the aperture is that 10mm is between the 50mm, shielding rod 13 is identical with the regularity of distribution of radioactive source 3 with the regularity of distribution of precollimator 5, shielding rod 13 and precollimator 5 select for use heavy metal material 6 to make, as metal or tungsten alloy; The end face that has the convex edge on the pre-collimation body 4 has been embedded in heavy metal material 6, and the lonizing radiation that shielded radioactive source 3 are in source body 2 and at the pre-leakage rediation that collimates in body 4 and source body 2 fit clearances, and are in therapeutic process, safer to patient's protection.The helmet 7 is installed on the therapeutic bed 12 by bearing 9, being shaped as of the helmet 7 is hollow spherical, three to six groups of whole collimators 8 are arranged on the helmet 7, with five groups of whole collimators 8 is example, the center through hole of whole collimator 8 is the lonizing radiation passage, the aperture is respectively 4mm between the 50mm, and shielding rod 13 is identical with the regularity of distribution of radioactive source 3 with the regularity of distribution of whole collimator 8, and shielding rod 13 and whole collimator 8 all select for use heavy metal material 6 to make.On the pre-collimation body 4 and the helmet 7 mechanism that is located by connecting is set.The mechanism that is located by connecting is made up of positioning convex 10, the detent 11 that matches with positioning convex 10, as positioning convex 10 can be alignment pin or locating piece, detent 11 can be locating hole or locating slot, on the mating surface of the pre-collimation body 4 and the helmet 7 positioning convex 10 is set, on the mating surface of the helmet 7 and pre-collimation body 4 five detents 11 are set, each detent 11 is the position of corresponding every group of whole collimator 8 respectively; Be provided with position-limit mechanism between the helmet 7 and the therapeutic bed 12, position-limit mechanism comprises spacing hole and Spring Card pearl 15, and the described helmet 7 is provided with spacing hole, therapeutic bed 12 is provided with Spring Card pearl 15, spacing hole matches with Spring Card pearl 15 during the treatment location, makes the circumferential position of the helmet 7 remain on initial zero-bit.In the therapeutic process, by the selected one group of whole collimator 8 of treatment plan, the pre-collimation of rotation body 4, make the positioning convex 10 on its mating surface axially corresponding with a detent 11 on the helmet 7, therapeutic bed 12 is along the axis direction rectilinear motion of radiation appliance, the detent 11 of the helmet 7 on the therapeutic bed 12 is matched with the positioning convex 10 of pre-collimation body 4, the outer surface of the helmet 7 cooperates with the internal surface gaps of pre-collimation body 4, guarantee the lonizing radiation channel alignment of precollimator 5 and selected one group of whole collimator 8 simultaneously, under the drive of pre-collimation body 4, make the helmet 7 and pre-collimation body 4 driven in synchronism by positioning convex 10, accurately rotating focus is on a public focus 20 for the lonizing radiation passage that radioactive source 3 rays are formed by precollimator 5 and whole collimator 8, and this focus is positioned on the axis of radiation appliance.
Claims (8)
1. radiation device of radiation treatment, comprise: shield (1), source body (2), pre-collimation body (4), the helmet (7), source body driver part, pre-collimation body driver part and therapeutic bed (12), the ray radial convergence of a plurality of radioactive sources (3) is on a public focus (20) of radiation appliance central axis in the source body (2), source body (2) is connected with source body driver part, the inner pre-collimation body (4) of source body (2) is connected with pre-collimation body driver part, precollimator (5) with radioactive source (3) same distribution rule is arranged on the pre-collimation body (4)
It is characterized in that: at least one group of whole collimator (8) is arranged on the helmet (7), whole collimator (8) is identical with the distribution of radiation rule, the centre of whole collimator (8) is a ray channel, the helmet (7) docks separably with pre-collimation body (4) by the mechanism that is located by connecting and is one, make the precollimator (5) in the pre-collimation body (4) aim at wherein one group of whole collimator (8), the helmet (7) is connected on the therapeutic bed (12) by bearing (9).
2. the radiation device of radiation treatment described in claim 1 is characterized in that: the described mechanism that is located by connecting is separately positioned on the helmet (7) and the pre-collimation body (4).
3. radiation device of radiation treatment as claimed in claim 1 or 2, it is characterized in that: the described mechanism that is located by connecting comprises a positioning convex (10), several detents (11) that match with positioning convex (10), on the mating surface of the pre-collimation body (4) and the helmet (7) positioning convex (10) or several detents (11) are arranged, on the mating surface of the helmet (7) and pre-collimation body (4) several detents (11) or a positioning convex (10) are arranged.
4. radiation device of radiation treatment as claimed in claim 3 is characterized in that: described positioning convex (10) is alignment pin or locating piece, and described detent (11) is locating hole or locating slot.
5. radiation device of radiation treatment as claimed in claim 1, it is characterized in that: be provided with position-limit mechanism between the helmet (7) and the therapeutic bed (12), position-limit mechanism comprises spacing hole and Spring Card pearl (15), the helmet (7) is provided with spacing hole, therapeutic bed (12) is provided with Spring Card pearl (15), and spacing hole matches with Spring Card pearl (15) during the treatment location.
6. radiation device of radiation treatment as claimed in claim 1 is characterized in that: collimate body (4) in advance and be provided with shielding rod (13) with radioactive source same distribution rule.
7. radiation device of radiation treatment as claimed in claim 1 is characterized in that: collimate body (4) has the convex edge for end face hollow spherical crown body in advance.
8. radiation device of radiation treatment as claimed in claim 7 is characterized in that: the convex edge that collimates in advance on body (4) end face is embedded in heavy metal material (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104265 CN2676951Y (en) | 2003-12-31 | 2003-12-31 | Radiation therapy radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104265 CN2676951Y (en) | 2003-12-31 | 2003-12-31 | Radiation therapy radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2676951Y true CN2676951Y (en) | 2005-02-09 |
Family
ID=34580659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320104265 Expired - Fee Related CN2676951Y (en) | 2003-12-31 | 2003-12-31 | Radiation therapy radiator |
Country Status (1)
| Country | Link |
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| CN (1) | CN2676951Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100540088C (en) * | 2003-12-31 | 2009-09-16 | 深圳市尊瑞科技有限公司 | Radiation device of radiation treatment and method of radiating thereof |
| CN101239224B (en) * | 2007-07-16 | 2010-12-22 | 深圳市海博科技有限公司 | Radiation therapy driving device |
| WO2012041127A1 (en) * | 2010-09-30 | 2012-04-05 | 宋世鹏 | Self-focusing radiation source apparatus and emission apparatus thereof |
| WO2014131175A1 (en) * | 2013-02-28 | 2014-09-04 | 深圳市奥沃医学新技术发展有限公司 | Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus |
| CN106823161A (en) * | 2011-12-02 | 2017-06-13 | 瓦里安医疗系统公司 | There is the radiology system of minimal shielding requirement or unshielded requirement to building |
| CN108815722A (en) * | 2018-06-14 | 2018-11-16 | 宋世鹏 | Integrated collimator, treatment head and its application method |
| WO2019109688A1 (en) * | 2017-12-05 | 2019-06-13 | 西安大医集团有限公司 | Focused radiotherapy device and apparatus |
-
2003
- 2003-12-31 CN CN 200320104265 patent/CN2676951Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100540088C (en) * | 2003-12-31 | 2009-09-16 | 深圳市尊瑞科技有限公司 | Radiation device of radiation treatment and method of radiating thereof |
| CN101239224B (en) * | 2007-07-16 | 2010-12-22 | 深圳市海博科技有限公司 | Radiation therapy driving device |
| WO2012041127A1 (en) * | 2010-09-30 | 2012-04-05 | 宋世鹏 | Self-focusing radiation source apparatus and emission apparatus thereof |
| CN102446571A (en) * | 2010-09-30 | 2012-05-09 | 上海世鹏实验室科技发展有限公司 | Self-focusing radioactive source device and radiation device thereof |
| CN102446571B (en) * | 2010-09-30 | 2014-03-05 | 上海世鹏实验室科技发展有限公司 | Self-focusing radioactive source device and radiation device thereof |
| CN106823161A (en) * | 2011-12-02 | 2017-06-13 | 瓦里安医疗系统公司 | There is the radiology system of minimal shielding requirement or unshielded requirement to building |
| CN106823161B (en) * | 2011-12-02 | 2020-06-26 | 瓦里安医疗系统公司 | Radiation system with minimal or no shielding requirements for buildings |
| WO2014131175A1 (en) * | 2013-02-28 | 2014-09-04 | 深圳市奥沃医学新技术发展有限公司 | Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus |
| CN104203343A (en) * | 2013-02-28 | 2014-12-10 | 深圳市奥沃医学新技术发展有限公司 | Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus |
| CN104203343B (en) * | 2013-02-28 | 2017-02-22 | 深圳市奥沃医学新技术发展有限公司 | Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus |
| WO2019109688A1 (en) * | 2017-12-05 | 2019-06-13 | 西安大医集团有限公司 | Focused radiotherapy device and apparatus |
| CN108815722A (en) * | 2018-06-14 | 2018-11-16 | 宋世鹏 | Integrated collimator, treatment head and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |