CN105705201A - Radioactive source assembly and treatment head and gamma knife having radioactive source assembly - Google Patents
Radioactive source assembly and treatment head and gamma knife having radioactive source assembly Download PDFInfo
- Publication number
- CN105705201A CN105705201A CN201480002967.1A CN201480002967A CN105705201A CN 105705201 A CN105705201 A CN 105705201A CN 201480002967 A CN201480002967 A CN 201480002967A CN 105705201 A CN105705201 A CN 105705201A
- Authority
- CN
- China
- Prior art keywords
- roller
- radioactive source
- ray
- side wall
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002285 radioactive effect Effects 0.000 title claims abstract description 54
- 230000000712 assembly Effects 0.000 claims description 29
- 238000000429 assembly Methods 0.000 claims description 29
- 230000005855 radiation Effects 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding 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
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000033912 thigmotaxis Effects 0.000 description 1
Classifications
-
- 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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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of Radiation (AREA)
- Radiation-Therapy Devices (AREA)
- Nuclear Medicine (AREA)
Abstract
A gamma knife treatment head comprises a shield, a radioactive source assembly and a collimator. The shield comprises an accommodating chamber and multiple through-holes communicating the accommodating chamber to the outside. The radioactive source assembly is rotatably accommodated in the accommodating chamber and comprises a radioactive source and a roller. The roller accommodates the radioactive source and has multiple ray channels where rays emitted by the radioactive source are sent out. The roller can rotate to a first position to make the ray channels corresponding to the through-holes (62), and to a second position to make the ray channels staggered from the through-holes. Because the radioactive source is opened or closed in a manner of rotating the radioactive source assembly, the collimating and source closing dislocation distance travel is shortened, and the overall volume and the overall weight of the device are reduced. The invention also provides a radioactive source assembly and a gamma knife.
Description
Specification
Radiation source assemblies and treatment head and gamma knife technical field with the radiation source assemblies
The present invention relates to technical field of medical equipment, and in particular to be a kind of radiation source assemblies and treatment head and gamma knife with the radiation source assemblies.
Background technology
Tumour is a kind of common frequently-occurring disease, and gamma knife is a kind of common therapeutic equipment.Gamma knife is also known as stereotaxis gamma ray emissions treatment system, it is a kind of the present computer technology, horseley-Clarke technique and surgical technic of merging in the therapeutic article of one, the gamma rays geometric focusing that it sends Co 60, concentration is penetrated in focus, disposably, the tissue destroyed in target spot of lethal, and ray passes through human normal tissue almost fanout free region, and dosage falls sharply, therefore it treats range of exposures and normal structure boundary clearly, edge is visually referred to as " gamma knife " as being cut knife.
Gamma knife includes the shield with reception room, semiclosed the radiation source assemblies being housed in the reception room and is arranged at the opening of the reception room sentencing the collimater of the sealing reception room.Collimater to should the opening of reception room go out to offer multiple collimating apertures, the ray that radioactive source is sent can be projected outside the reception room by the collimating aperture.In the prior art, closing radioactive source is realized typically by radioactive source and collimating aperture are staggered into a certain distance by way of translation.However, in order to meet surface shielding requirements, the dislocation distance stroke is longer, causes the volume of whole gamma knife larger.In addition, focus fixed range of the exit end face of collimating aperture to radioactive source, in the case of end face shielding requirements are met, the distance of radioactive source to focus is elongated, and focus close rate declines.
The content of the invention
The present invention provides a kind of radiation source assemblies for the treatment of head and gamma knife and the volume that can reduce whole gamma knife with smaller size smaller.
The embodiments of the invention provide a kind of gamma knife treatment head, including shield, radiation source assemblies and collimater.The shield includes reception room and multiple through holes that the reception room is communicated to outside.The radiation source assemblies are rotationally housed in the reception room and including radioactive source and roller, and the roller houses the radioactive source and with multiple ray channels projected for the ray that the radioactive source is sent.Roller can turn to ray channel first position corresponding with the through hole and the second place staggered with the through hole.
Preferably, the reception room and the roller are cylindrical and coaxial, and the roller is rotated about the axis thereof.Preferably, the cavity that the roller includes the side wall of its parallel axis and surrounded by the side wall, the ray channel runs through the side wall；The radiation source assemblies also include being housed in the cavity and fix the radioactive source fixed block of the radioactive source and be arranged on the radioactive source fixed block both sides with the shielding slab for the both sides for sealing cavity axial direction.
Preferably, in addition to the bearing that is arranged between the lateral wall at the axial two ends of the roller and the shield, so that the roller is rotatable around its axis.
Preferably, the collimater has multiple collimating apertures, the collimater can be moved to the collimating aperture the 3rd position corresponding with the through hole when the roller is located at the first position, and the 4th position that the collimating aperture staggers with the through hole is moved to when the roller is located at the second place.
A kind of radiation source assemblies, including roller, its is cylindrical, and the cavity and multiple ray channels through the side wall for having the side wall of its parallel axis, being surrounded by the side wall；Radioactive source fixed block, it is housed in the cavity；Multiple radioactive sources, it is fixed to the radioactive source fixed block and its ray sent projects the roller by the plurality of ray channel；And shielding slab, it is arranged on the radioactive source fixed block both sides and gone with close:The both sides of H last of the twelve Earthly Branches cavity axial direction.
Preferably, the side of fixed block is fitted with the inwall of the cavity, and includes the accepting hole of multiple the plurality of radioactive sources of collecting through itself, and the opening that the plurality of accepting hole is close to the inwall of the cavity is corresponding with the plurality of ray channel.
Preferably, the thickness of side wall diametrically where the plurality of ray channel is less than relative opposite side
Side wall thickness.
Preferably, in addition to the bearing that is arranged on the lateral wall at the axial two ends of the roller, so that the roller is rotatable around its axis.
A kind of gamma knife with radiation source assemblies as described above or treatment head.
The treatment head of the gamma knife of this implementation is implemented to be turned on and off radioactive source as a result of the mode of rotary emission source component, collimation is closed source dislocation distance stroke and shortens, so that equipment overall volume is small, overall weight diminishes.Shielding material is reduced.In addition, focus fixed range of the exit end face of collimating aperture to radioactive source, in the case of end face shielding requirements are met, can realize source to the Distance Shortened of focus, the raising of focus close rate by rotating pass source roller.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of radiation source assemblies provided in an embodiment of the present invention；
Fig. 2 is the schematic cross-sectional view of the treatment head of gamma knife provided in an embodiment of the present invention, and it includes radiation source assemblies as shown in Figure 1；And
Fig. 3 is that Fig. 2 treatment head is located at the schematic cross-sectional view of another state.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples, the present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Technical scheme must be understood in order to more preferable, applicant illustrates the radiation source assemblies of the invention and the treatment head of gamma knife by Fig. 1 embodiment.Fig. 1 is the schematic cross-sectional view of radiation source assemblies provided in an embodiment of the present invention.As shown in figure 1, the radiation source assemblies of present embodiment include roller 10, radioactive source fixed block 20, multiple radioactive sources 30, two shielding slabs 40 and two bearings 50.Roller 10 is cylindrical, the side wall 12 with its parallel axis, the cavity 14 surrounded by the side wall 12 and multiple ray channels 16 through the side wall 12.Radioactive source fixed block 20
It is housed in the cavity 14, multiple accepting holes 22 through its own is offered thereon.The side of radioactive source 30 is fitted with the side wall 12 of roller 10, and accepting hole 22 be close to the inwall of cavity 14 opening it is corresponding respectively with ray channel 16.In this way, the ray that radioactive source 30 is sent can be projected outside roller 10 by linear ray channel 16.Preferably, the thickness diametrically of the side wall 12 of the roller 10 where ray channel 16 is less than the thickness of the side wall of relative opposite side.In this way, being conducive to the injection of ray, it is also beneficial to shown opposite side and preferably shields ray.Shielding slab 40 is arranged on the both sides that the both sides of radioactive source fixed block 20 are located at axial direction with the cavity 14 of sealed cylinder 10.In this way, radiation source assemblies form a whole.In the present embodiment, radioactive source 30 is cobalt source, and the radioactive source fixed block 20 is also referred to as cobalt source fixed block.
It is the schematic cross-sectional view of the treatment head of gamma knife provided in an embodiment of the present invention incorporated by reference to Fig. 2 and 3, Fig. 2, Fig. 3 is that Fig. 2 treatment head is located at the schematic cross-sectional view of another state.The treatment head of gamma knife includes shield 60, collimater 70 and radiation source assemblies as shown in Figure 1.Preferably, the treatment head of gamma knife also includes the casing 80 of cladding shield 60, with guard shield body 60.Shield 60 is made up of shielding material, such as lead, and it forms columned reception room 64 and multiple through holes 62 that reception room 64 is communicated to outside.Collimater 70 has multiple collimating apertures 72.Radiation source assemblies as shown in Figure 1 are by being sheathed on the bearing 50 on the lateral wall 12 at the axial two ends of the roller 10 (as shown in Fig. 1）Can rotationally it be housed in reception room 64 along its axis.Drive 18 as shown in Figure 1 can be set in the axial side of radiation source assemblies, and it is connected to a drive device, such as motor.In this way, under the driving of the drive device, roller 10 can turn to ray channel 16 and the corresponding first position of through hole 62（As shown in Figure 2）And cause radioactive source 30 to be in opening；Roller 10 also can turn to ray channel 16 and staggered with the through hole 62（Such as stagger 180 degree）The second place and cause radioactive source 30 be closed.Collimater 70 is moved to the 3rd position corresponding with through hole 62 of collimating aperture 72 when roller 10 is located at the first position, to realize treatment；The 4th position that the collimating aperture 72 through hole 62 staggers also is moved at 10 second places of roller, to terminate treatment.
The treatment head of the gamma knife of this implementation implements being turned on and off to radioactive source 30 as a result of the mode of rotary emission source component, collimation is closed source dislocation distance stroke and shortens, so that equipment overall volume is small, overall weight diminishes.Shielding material is reduced.In addition, focus fixed range of the exit end face of collimating aperture 72 to radioactive source 30, in the case of end face shielding requirements are met, can realize source to the Distance Shortened of focus, the raising of focus close rate by rotating pass source roller 10.
It is appreciated that the shape of roller 10 is also not necessarily limited to cylinder, it can also be that if tangent plane is octagon, the other shapes of cylinder of hexagon etc. etc. are rotated about the axis thereof as long as reception room 64 can hold it.Similarly, reception room 64 is also not necessarily limited to cylinder.
It is appreciated that because radiation source assemblies are housed in shield 60 completely, its shielding slab 40 for being located at the axial both sides of roller 10 need not can also be set, and the now ray of the radioactive source 30 still exhibition of shielded body 60 is covered.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., should be included in the scope of the protection.
Claims (9)
- Claims1st, a kind of radiation source assemblies, it is characterised in that including：Roller, and the cavity and multiple ray channels through the side wall that there is the side wall of its parallel axis, surrounded by the side wall；Radioactive source fixed block, it is housed in the cavity；Multiple radioactive sources, it is fixed to the radioactive source fixed block and its ray sent projects the roller by the plurality of ray channel；AndShielding slab, it is arranged on the radioactive source fixed block both sides to seal the both sides of cavity axial direction.2nd, the radiation source assemblies as described in claim 1, it is characterized in that, fitted with the inwall of the cavity side of fixed block, and including the accepting hole of multiple the plurality of radioactive sources of collecting through itself, the opening that the plurality of accepting hole is close to the inwall of the cavity is corresponding with the plurality of ray channel.3rd, the radiation source assemblies as described in claim 1, it is characterised in that the roller is cylindrical, the thickness of side wall diametrically where the plurality of ray channel is less than the thickness of the side wall of relative opposite side.4th, the radiation source assemblies as described in claim 1, it is characterised in that also including the bearing being arranged on the lateral wall at the axial two ends of the roller, so that the roller is rotatable around its axis.5th, a kind of gamma knife treatment head, including shield, radiation source assemblies and collimater, it is characterised in that：The shield includes reception room and multiple through holes that the reception room is communicated to outside；The radiation source assemblies are rotationally housed in the reception room and including radioactive source and roller, and the roller houses the radioactive source and with multiple ray channels projected for the ray that the radioactive source is sent；The roller can turn to ray channel first position corresponding with the through hole and the second place staggered with the through hole.6th, gamma knife treatment head as claimed in claim 5, it is characterised in that the reception room and the roller are cylindrical and coaxial, and the roller is rotated about the axis thereof. 7th, gamma knife treatment head as claimed in claim 6, it is characterised in that the cavity that the roller includes the side wall of its parallel axis and surrounded by the side wall, the ray channel runs through the side wall；The radiation source assemblies also include being housed in the cavity and fix the radioactive source fixed block of the radioactive source and be arranged on the radioactive source fixed block both sides with the shielding slab for the both sides for sealing cavity axial direction.8th, gamma knife treatment head as claimed in claim 5, it is characterised in that also including the bearing being arranged between the lateral wall and the shield at the axial two ends of the roller, so that the roller is rotatable around its axis.9th, gamma knife treatment head as claimed in claim 5, it is characterized in that, the collimater has multiple collimating apertures, the collimater can be moved to the collimating aperture the 3rd position corresponding with the through hole when the roller is located at the first position, and the 4th position that the collimating aperture staggers with the through hole is moved to when the roller is located at the second place.10th, a kind of gamma knife with the radiation source assemblies as described in Claims 1-4 or the treatment head as described in claim 5 to 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/082736 WO2016011604A1 (en) | 2014-07-22 | 2014-07-22 | Radioactive source assembly and treatment head and gamma knife having radioactive source assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105705201A true CN105705201A (en) | 2016-06-22 |
| CN105705201B CN105705201B (en) | 2019-02-19 |
Family
ID=55162408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480002967.1A Active CN105705201B (en) | 2014-07-22 | 2014-07-22 | Radiation source assemblies and treatment head and gamma knife with the radiation source assemblies |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105705201B (en) |
| WO (1) | WO2016011604A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721793A (en) * | 2018-06-15 | 2018-11-02 | 岑永娟 | Gamma knife radiotherapy equipment radioactive sources safety dress changes system |
| CN109310877A (en) * | 2016-06-23 | 2019-02-05 | 深圳市奥沃医学新技术发展有限公司 | Method, shield, treatment head and the therapeutic equipment being imaged using radiographic source |
| CN111022029A (en) * | 2019-11-11 | 2020-04-17 | 东华理工大学 | Automatic installation and replacement device for logging radioactive source |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2871555T3 (en) * | 2016-07-06 | 2021-10-29 | Univ Clemson Res Foundation | Radiation delivery devices |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448611A (en) * | 1992-08-04 | 1995-09-05 | Framatome Societe Anonyme | Process and apparatus for the treatment of lesions by high frequency radiation |
| CN2719342Y (en) * | 2004-04-29 | 2005-08-24 | 杭州华源伽玛医疗设备投资有限公司 | Gamma ray radiation device |
| CN2736014Y (en) * | 2004-09-15 | 2005-10-26 | 杭州华源伽玛医疗设备投资有限公司 | Turn-to-close type gamma ray radiation device |
| CN201115753Y (en) * | 2007-11-27 | 2008-09-17 | 深圳市海博科技有限公司 | Radiation therapy device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202342702U (en) * | 2012-04-06 | 2012-07-25 | 刘巍峰 | Medical radiotherapy device |
-
2014
- 2014-07-22 WO PCT/CN2014/082736 patent/WO2016011604A1/en active Application Filing
- 2014-07-22 CN CN201480002967.1A patent/CN105705201B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5448611A (en) * | 1992-08-04 | 1995-09-05 | Framatome Societe Anonyme | Process and apparatus for the treatment of lesions by high frequency radiation |
| CN2719342Y (en) * | 2004-04-29 | 2005-08-24 | 杭州华源伽玛医疗设备投资有限公司 | Gamma ray radiation device |
| CN2736014Y (en) * | 2004-09-15 | 2005-10-26 | 杭州华源伽玛医疗设备投资有限公司 | Turn-to-close type gamma ray radiation device |
| CN201115753Y (en) * | 2007-11-27 | 2008-09-17 | 深圳市海博科技有限公司 | Radiation therapy device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109310877A (en) * | 2016-06-23 | 2019-02-05 | 深圳市奥沃医学新技术发展有限公司 | Method, shield, treatment head and the therapeutic equipment being imaged using radiographic source |
| CN108721793A (en) * | 2018-06-15 | 2018-11-02 | 岑永娟 | Gamma knife radiotherapy equipment radioactive sources safety dress changes system |
| CN108721793B (en) * | 2018-06-15 | 2023-09-22 | 岑永娟 | Safe radioactive source replacing system of gamma knife radiotherapy equipment |
| CN111022029A (en) * | 2019-11-11 | 2020-04-17 | 东华理工大学 | Automatic installation and replacement device for logging radioactive source |
| CN111022029B (en) * | 2019-11-11 | 2022-10-28 | 东华理工大学 | Automatic installation and replacement device for logging radioactive source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105705201B (en) | 2019-02-19 |
| WO2016011604A1 (en) | 2016-01-28 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160622 Assignee: Xi'an grand Medical Digital Technology Co., Ltd. Assignor: Shenzhen Aowo Medical New Technology Development Co.,Ltd. Contract record no.: 2017610000013 Denomination of invention: Radioactive source assembly and treatment head and gamma knife having radioactive source assembly License type: Exclusive License Record date: 20170503 |
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Change date: 20180911 Contract record no.: 2017610000013 Assignee after: Xi'an great medicine group Co., Ltd. Assignee before: Xi'an grand Medical Digital Technology Co., Ltd. |
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Assignee: Xi'an great medicine group Co., Ltd. Assignor: Shenzhen Aowo Medical New Technology Development Co.,Ltd. Contract record no.: 2017610000013 Date of cancellation: 20181113 |
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Application publication date: 20160622 Assignee: Xi'an great medicine group Co., Ltd. Assignor: Shenzhen Aowo Medical New Technology Development Co.,Ltd. Contract record no.: 2018610000029 Denomination of invention: Radioactive source assembly and treatment head and gamma knife having radioactive source assembly License type: Common License Record date: 20181116 |
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