CN100540088C - Radiation device of radiation treatment and method of radiating thereof - Google Patents
Radiation device of radiation treatment and method of radiating thereof Download PDFInfo
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- CN100540088C CN100540088C CNB2003101238771A CN200310123877A CN100540088C CN 100540088 C CN100540088 C CN 100540088C CN B2003101238771 A CNB2003101238771 A CN B2003101238771A CN 200310123877 A CN200310123877 A CN 200310123877A CN 100540088 C CN100540088 C CN 100540088C
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Abstract
The invention discloses a kind of radiation device of radiation treatment and method of radiating thereof, comprise: source body (2), pre-collimation body (4), the helmet (7), 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 driver part respectively with pre-collimation body (4), upward whole collimator (8) is identical with radioactive source (3) regularity of distribution with the helmet (7) for precollimator (5) on the pre-collimation body (4), the helmet (7) docks 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).Method of radiating is a system initialization, makes the pre-collimation body (4) and the helmet (7) to initial zero-bit, bit selecting, butt joint, realizes radiotherapy.Its advantage is radioactive source (a 3) focusing accuracy height, and therapeutic effect is good.
Description
Technical field
The present invention relates to a kind of radiation device of radiation treatment and method of radiating thereof.
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, the invention provides a kind of radiation device of radiation treatment and method of radiating thereof that ray accurately focuses on the public focus, therapeutic effect is good that makes the multi beam radioactive source.
The technical solution adopted for the present invention to solve the technical problems is: 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, every group of whole collimator is identical with the distribution of radiation rule, the centre of whole collimator is a ray channel, the helmet docks separably 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.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.Method of radiating is a system initialization, makes the pre-collimation body and the helmet to initial zero-bit, bit selecting, butt joint, realizes radiotherapy.
The invention has the beneficial effects as follows, 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 guaranteed 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 radio radiation channel design sketch map of this device treatment.
Radio 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.
Fig. 6 is the radiotherapy method of radiating flow chart of this device.
Among the figure: 1. shield, 2. source body, 3. radioactive source, 4. pre-collimation body, 5. precollimator, 6. heavy metal material, 7. the helmet, 8. whole collimator, 9. bearing, 10. positioning convex, 11. detents, 12. therapeutic bed, 13. shielding rods, 14. controllers, 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 cobalt-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 body 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 is 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, the helmet 7 be shaped as hollow ball-crown body, 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 the regularity of distribution of whole collimator 8 is identical with the regularity of distribution of radioactive source 3, and whole collimator 8 selects 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 is alignment pin or locating piece, detent 11 is 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 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.
The radiating method of radiotherapy is as follows:
(A) radiation appliance initialization: will collimate body 4 in advance and rotate to initial zero-bit, when rotating to initial zero-bit by the pre-collimation of controller 14 drivings body 4, controller 14 stops the rotation pre-collimation body 4; Therapeutic bed 12 drives the helmets 7 and is separated to therapeutic bed 12 initial zero-bits with pre-collimation body 4, and controller 14 drives the therapeutic bed rectilinear motions, and when the therapeutic bed 12 drive helmets 7 moved to the initial zero-bit of therapeutic bed 12, controller 14 made therapeutic bed 12 stop motions; The helmet 7 rotates to initial zero-bit, and controller 14 is finished the radiation appliance initialization;
(B) therapeutic bed 12 drives the helmet 7 and is separated to the position of changing whole collimator 8 vertically with pre-collimation body 4, controller 14 drives the therapeutic bed rectilinear motion, when the distance of the helmet 7 and pre-collimation body 4 mating surfaces during greater than positioning convex 10 length, controller 14 makes therapeutic bed 12 stop motions;
(C) collimate body 4 in advance and rotate to bit selecting, controller 14 drives pre-collimation body 4 and rotates to selected position, this position is a position in the whole collimator of many groups 8 positions, as select first group of whole collimator position or second group of whole collimator position or the 3rd group of whole collimator position or the 4th group of whole collimator position or the 5th group of whole collimator position, controller 14 stops the rotation pre-collimation body 4;
(D) collimate body 4 in advance and axially dock with the helmet 7, controller 14 drives the therapeutic bed rectilinear motion, and when therapeutic bed 12 drove the helmet 7 and collimation body 4 axially docks in advance, controller 14 made therapeutic bed 12 stop motions;
(E) collimate body 4 in advance and drive the helmet 7 together with the 2 realization rotary irradiation treatments of source body, controller 14 drives the pre-collimation body 4 drive helmets 7 and rotates synchronously with source body 2 together, when irradiation treatment was finished, controller 14 sent information, made pre-collimation body 4 drive the helmet 7 and rotated to initial zero-bit;
(F) continue treatment as selecting, select next to organize whole collimator 8, repetition methods (B, C, D, E);
(G) do not continue treatment as selecting, therapeutic bed 12 drives the helmet 7 and is separated to therapeutic bed 12 zero-bits with pre-collimation body 4, controller 14 drives the therapeutic bed rectilinear motions, and when therapeutic bed 12 drove the helmets 7 and moves to the initial zero-bit of therapeutic bed 12, controller 14 made therapeutic bed 12 stop motions.
Claims (1)
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, pre-collimation body (4) in the 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: the whole collimator (8) in some groups of different apertures is arranged on the helmet (7), every group of 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, the mechanism that is located by connecting is separately positioned on the helmet (7) and the pre-collimation body (4), and 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), the described mechanism that is located by connecting comprises a positioning convex (10), and several detents (11) that match with a positioning convex (10), on the mating surface of the pre-collimation body (4) and the helmet (7) positioning convex (10) is arranged, or several detents (11), on the mating surface of the helmet (7) and pre-collimation body (4) several detents (11) are arranged, an or positioning convex (10), positioning convex (10) is alignment pin or locating piece, and detent (11) is locating hole or locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101238771A CN100540088C (en) | 2003-12-31 | 2003-12-31 | Radiation device of radiation treatment and method of radiating thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2003101238771A CN100540088C (en) | 2003-12-31 | 2003-12-31 | Radiation device of radiation treatment and method of radiating thereof |
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| CN1634620A CN1634620A (en) | 2005-07-06 |
| CN100540088C true CN100540088C (en) | 2009-09-16 |
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| CNB2003101238771A Expired - Fee Related CN100540088C (en) | 2003-12-31 | 2003-12-31 | Radiation device of radiation treatment and method of radiating thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102451521B (en) * | 2010-10-26 | 2015-03-04 | 苏州雷泰医疗科技有限公司 | Radiotherapy equipment |
| CN102485281A (en) * | 2010-12-03 | 2012-06-06 | 深圳市华科核医疗技术有限公司 | Medical irradiation device |
| CN102688558B (en) * | 2012-05-29 | 2015-06-03 | 武汉数码刀医疗有限公司 | Radiation therapy equipment |
| JP6449127B2 (en) * | 2014-10-27 | 2019-01-09 | 住友重機械工業株式会社 | Neutron capture therapy treatment table and neutron capture therapy system |
| RU2721658C1 (en) | 2016-11-14 | 2020-05-21 | Нойборон Медтех Лтд. | Radiation based on medical images radiation shielding device and method |
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| US5528653A (en) * | 1993-04-13 | 1996-06-18 | Song; Shipeng | Rotational coniformly-focused gamma radiating unit |
| CN1126622A (en) * | 1995-06-08 | 1996-07-17 | 宋世鹏 | Method of changing ray beam diameter and radiation unit |
| CN2244943Y (en) * | 1995-08-24 | 1997-01-15 | 戴强 | Bidirectional rotary focusing mechanism for Gamma knife |
| US5627870A (en) * | 1993-06-07 | 1997-05-06 | Atea, Societe Atlantique De Techniques Avancees | Device for treating cerebral lesions by gamma radiation, and corresponding treatment apparatus |
| CN2258407Y (en) * | 1996-11-25 | 1997-07-30 | 郑铁 | Aligned focusing and screening device for radioactive cobalt rotary stereo directional head radiotherapy apparatus |
| DE19604789C2 (en) * | 1996-02-09 | 1999-08-05 | Gks Gmbh | Device for radiosurgical treatment of a patient in the head area |
| US6044126A (en) * | 1997-06-23 | 2000-03-28 | Ch&U De Lille | Process for automatically determining the configuration of a stereotactic radiosurgery helmet to which can be fitted a plurality of collimators focused on an irradiation isocenter |
| CN2676951Y (en) * | 2003-12-31 | 2005-02-09 | 深圳市尊瑞科技有限公司 | Radiation therapy radiator |
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2003
- 2003-12-31 CN CNB2003101238771A patent/CN100540088C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5528653A (en) * | 1993-04-13 | 1996-06-18 | Song; Shipeng | Rotational coniformly-focused gamma radiating unit |
| US5627870A (en) * | 1993-06-07 | 1997-05-06 | Atea, Societe Atlantique De Techniques Avancees | Device for treating cerebral lesions by gamma radiation, and corresponding treatment apparatus |
| CN1126622A (en) * | 1995-06-08 | 1996-07-17 | 宋世鹏 | Method of changing ray beam diameter and radiation unit |
| CN2244943Y (en) * | 1995-08-24 | 1997-01-15 | 戴强 | Bidirectional rotary focusing mechanism for Gamma knife |
| DE19604789C2 (en) * | 1996-02-09 | 1999-08-05 | Gks Gmbh | Device for radiosurgical treatment of a patient in the head area |
| CN2258407Y (en) * | 1996-11-25 | 1997-07-30 | 郑铁 | Aligned focusing and screening device for radioactive cobalt rotary stereo directional head radiotherapy apparatus |
| US6044126A (en) * | 1997-06-23 | 2000-03-28 | Ch&U De Lille | Process for automatically determining the configuration of a stereotactic radiosurgery helmet to which can be fitted a plurality of collimators focused on an irradiation isocenter |
| CN2676951Y (en) * | 2003-12-31 | 2005-02-09 | 深圳市尊瑞科技有限公司 | Radiation therapy radiator |
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| CN1634620A (en) | 2005-07-06 |
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Address after: 518057 Guangdong province Shenzhen city Nanshan District high tech park, North Long Hill Road No. 6 Yizhongli Science Park No. 1 building six on the south side of C District Patentee after: Shenzhen Zunrui Technology Co., Ltd. Address before: 518057 Guangdong city of Shenzhen province Nanshan District South Road seven Digital Technology Park B2 Building 5 floor C District Patentee before: Shenzhen Zunrui Technology Co., Ltd. |
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