CN104203343B - Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus - Google Patents
Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus Download PDFInfo
- Publication number
- CN104203343B CN104203343B CN201380004397.5A CN201380004397A CN104203343B CN 104203343 B CN104203343 B CN 104203343B CN 201380004397 A CN201380004397 A CN 201380004397A CN 104203343 B CN104203343 B CN 104203343B
- Authority
- CN
- China
- Prior art keywords
- precollimator
- source
- dynamic loading
- collimater
- pull rod
- 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.)
- Expired - Fee Related
Links
- 230000033001 locomotion Effects 0.000 title claims description 12
- 230000005855 radiation Effects 0.000 title abstract description 6
- 239000010941 cobalt Substances 0.000 abstract description 15
- 229910017052 cobalt Inorganic materials 0.000 abstract description 15
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 15
- 238000002560 therapeutic procedure Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
- 239000007787 solid Substances 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
- A61N5/1048—Monitoring, verifying, controlling systems and methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/405—Source units specially adapted to modify characteristics of the beam during the data acquisition process
-
- 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
- A61N2005/1092—Details
- A61N2005/1095—Elements inserted into the radiation path within the system, e.g. filters or wedges
Abstract
A pull rod apparatus capable of implementing startup and shutdown of a source body and a radiation apparatus of the pull rod apparatus. The radiation apparatus comprises a therapy head cavity, a precollimator, a collimator, and a mobile source carrier body. The pull rod apparatus comprises a push-pull solenoid, a movable rod, a solenoid fixing plate, a cobalt source set fixing plate, and a linear bearing. The mobile source carrier body is connected to the cobalt source set fixing plate via the linear bearing and is arranged on the outer side of the precollimator. The mobile source carrier body is connected sequentially to the movable rod and the push-pull solenoid. The push-pull solenoid is arranged on the solenoid fixing plate, while the solenoid fixing plate is connected to the cobalt source set fixing plate. In an actual use process, insofar that the push solenoid is either connected to or disconnected from power, the movable rod is pushed to drive the mobile source body into startup or shutdown. Employment of the pull rod apparatus allows for solving of the problem that dose rate at a focus point cannot be adjusted dynamically.
Description
Technical field
The present invention relates to medical instruments field, it is turned on and off by making source body in more particularly, to a kind of gamma knife equipment
Realize radiological dose and adjust strong pull rod device and its radiological unit within the specific limits.
Background technology
At present in gamma knife equipment, including the cobalt source for producing radioactive ray, for place cobalt source load source body and with
The body concentric collimater in load source.As shown in figure 1, described cobalt source is in the fixed position distribution of the source of load body, described collimater is relatively every
Multiple collimater openings are included on a cobalt source position, the opening size of the collimation opening of each collimater is different.In therapeutic process
In, collimater is rotated around focus with the source of load body simultaneously.In switch collimators opening, source body is relatively carried around focus by collimater
Rotate to an angle to switch the collimater with different openings size, to realize solid under permanent opening size on focal plane
Fixed field size and the focus close rate of focal point fixation under this opening.
Aforesaid way has the following disadvantages：Because cobalt source position is fixing, collimater is that one rotates around focus, each
Collimater opening relatively carries cobalt source position on the body of source and fixes, and only rotates around focus to realize field,fixed shape by collimater
The change of shape is it is impossible to realize the regulatory function of focal plane part of the body cavity above the diaphragm housing the heart and lungs dose point.
Content of the invention
The present invention provides a kind of pull rod device opening and closing source body and its radiological unit, in order to realize focus dosage
Tune powerful.
The pull rod device embodiments providing a kind of body motion of achievable source includes the movement for carrying source body
Load source body, described shifting Dynamic Loading body is provided with through hole, source body group installing plate along direction of axis line, carries source body for holding movable,
Described source body group installing plate is provided with fluting, mobile bar along direction of axis line, is connected with moving Dynamic Loading body phase, sliding electromagnet,
It is connected with mobile bar.
Preferably, when sliding electromagnet promotes mobile bar, mobile bar drives moves Dynamic Loading body on the body group installing plate of source
Motion, makes the through hole on shifting Dynamic Loading body align with the fluting on the body group installing plate of source or stagger.
Preferably, also include electromagnet fixed plate, described electromagnet fixed plate is fixedly connected with source body group installing plate.
Preferably, described electromagnet fixed plate is provided with opening, promotes electromagnet for fixing.
Preferably, also include linear bearing, described shifting Dynamic Loading body is fixed in the body group fixed plate of source by linear bearing.
The embodiment of the present invention additionally provides a kind of radiological unit, including：At least one precollimator, described precollimator is along axial line side
To being provided with collimation opening；Collimater, described collimater is arranged on inside precollimator, and described collimater is provided with least two groups and opens
The collimation opening that mouth size does not wait.Described radiological unit also includes can achieve the pull rod device of source body motion, described pull rod device
It is arranged on outside precollimator.Described pull rod device includes：Move Dynamic Loading body, for carrying source body, described shifting Dynamic Loading body edge
Direction of axis line is provided with through hole；Source body group installing plate, carries source body for holding movable, described source body group installing plate is along axial line
Direction is provided with fluting, and described fluting is directed at the collimation opening of described precollimator；Mobile bar, is connected with moving Dynamic Loading body phase；
And sliding electromagnet, it is connected with mobile bar.The described center of circle moving Dynamic Loading body, precollimator and collimater coincides with one
Point, when sliding electromagnet promotes mobile bar, mobile bar drives shifting Dynamic Loading body to move on the body group installing plate of source, moves Dynamic Loading
Collimation register in fluting on through hole on body and source body group installing plate, precollimator and collimater or stagger.Relatively
Excellent, also include treatment head cavity, described precollimator is arranged on treatment head cavity, the center of circle of described treatment head cavity with pre-
Collimater, collimater and the center of circle coincidence moving Dynamic Loading body.
The pull rod device being turned on and off using the achievable source body of the embodiment of the present invention and its radiological unit, by source body
The dynamic regulation to realize focus dosage for the mobile combination being turned on or off, make the irradiation of tumour assume different dosage
?.
Brief description
Fig. 1 is radiological unit structural representation in existing gamma knife；
Fig. 2 is a kind of radiological unit structure cross-sectional provided in an embodiment of the present invention；
Fig. 3 is a kind of vertical section schematic diagram of radiological unit provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
Technical scheme for a better understanding of the present invention, applicant illustrates this by the specific embodiment of Fig. 2
The radiological unit of bright embodiment.As shown in Fig. 2 this radiological unit includes treatment head cavity, precollimator, collimater and movement
Load source body.Wherein, treatment head cavity cross section is in substantially inverted trapezoidal structure, the substantially trapezoidal structure in precollimator cross section, in advance
Collimater is fixed by screws on treatment head cavity.And collimater cross section is in an annulus, and it is arranged on precollimator and controls
Treat head inside cavities, and be connected with treatment head cavity by bearing.Wherein, above-mentioned treatment head cavity, precollimator and standard
The center of circle of straight device converges at a bit, abbreviation axle center or radiation focus.Additionally, this radiological unit also includes moving Dynamic Loading body, institute
State and move the outside that Dynamic Loading body is fixed on precollimator by screw, pin.In embodiments of the present invention, described shifting Dynamic Loading body
The source body of upper installation is cobalt source, and shifting Dynamic Loading body is overlapped along the center of circle of direction of axis line with the above-mentioned center of circle, i.e. radiation focus.
As shown in figure 3, making the pull rod device that cobalt source opens and closes in this radiological unit, in addition to moving Dynamic Loading body, also
Including source body group installing plate, sliding electromagnet, mobile bar, electromagnet mounting plate and linear bearing.Described source body group installing plate
Vertical section is in inverted F type structure, and is fixed on outside precollimator, and described shifting Dynamic Loading body is fixed on source by linear bearing
On body group installing plate.Described shifting Dynamic Loading body is connected with mobile bar by screw, pin.Additionally, mobile bar and push-and-pull electromagnetism
Iron phase connects, and sliding electromagnet is arranged on electromagnet mounting plate.The vertical section of electromagnet mounting plate is in rectangular configuration, thereon
It is provided with opening, sliding electromagnet is fixed on electromagnet mounting plate by this opening.Additionally, this electromagnet mounting plate is fixed on source
On body group installing plate.In actual use, sliding electromagnet switching electricity (not shown) drive under, push-and-pull move
Bar simultaneously drives shifting Dynamic Loading body to move on the body group installing plate of source.
In embodiments of the present invention, as shown in Fig. 2 described radiological unit includes 4 shifting Dynamic Loading bodies, each moves Dynamic Loading
Body is provided with a through hole along direction of axis line, and is also provided with along direction of axis line on the body group installing plate of source and moves on Dynamic Loading body
The fluting that through hole matches.4 precollimators, each precollimator are provided with a collimation opening along axis direction, and arrange
The collimation opening that multigroup opening size does not wait then is provided with the collimater inside precollimator, in inventive embodiments, such as Fig. 2
Shown, it is provided with 4 groups of different collimation openings of opening size.In actual use, treatment head cavity rotates around focus, accurate
Straight device is simultaneously switching to same group of opening size, if now sliding electromagnet in the case of energising, sliding lever simultaneously drives
Shifting Dynamic Loading body moves on the body group installing plate of source makes the through hole on shifting Dynamic Loading body and the fluting on the body group installing plate of source, pre- standard
Collimation register on straight device, we term it increasing income, the radioactivity gamma rays that now cobalt source sends passes through precollimator
And the collimation opening in collimater and focus on axle center, reach radiotherapy purpose.If sliding electromagnet is in the situation of power-off
Under, sliding lever simultaneously drives shifting Dynamic Loading body to move to the through hole moving on Dynamic Loading body and source body group on the body group installing plate of source
Fluting on installing plate staggers completely, we term it closing source, the radioactivity gamma rays that now cobalt source sends cannot pass through source
Fluting on body group installing plate reaches radiation focus.It is true that user can move the opening of cobalt source on Dynamic Loading body by each
Open or close, reach the change of focal point dosage, thus reaching the regulatory function of focus dosage.For example, in the embodiment of the present invention
In, it is possible to achieve 4 carry source body and are all turned on, or 3 are opened even only unlatching one, to reach the dynamic of focal point dosage
Adjust.
In embodiments of the present invention, the dynamic of focus close rate is realized by the mobile combination being turned on or off of cobalt source
State is adjusted, and makes the irradiation of tumour assume different dosage fields.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of pull rod device of achievable source body motion is it is characterised in that include：
Move Dynamic Loading body, for carrying source body, described shifting Dynamic Loading body is provided with through hole along direction of axis line；Source body group is installed
Plate, carries source body for holding movable, and described source body group installing plate is provided with fluting along direction of axis line, wherein, described source body group
Installing plate is arranged on a precollimator, and described precollimator is provided with collimation opening, described fluting be aligned along direction of axis line
The collimation opening of described precollimator, and it is provided with collimater inside precollimator, described collimater is provided with least two groups
The collimation opening that opening size does not wait；
Mobile bar, is connected with moving Dynamic Loading body phase；
Sliding electromagnet, is connected with mobile bar；
The described center of circle moving Dynamic Loading body, precollimator and collimater coincides with a bit, when sliding electromagnet promotes mobile bar
When, mobile bar drives shifting Dynamic Loading body to move on the body group installing plate of source, moves the through hole on Dynamic Loading body and source body group installing plate
On fluting, the collimation register in precollimator and collimater or stagger.
2. the pull rod device that can achieve source body motion as claimed in claim 1 is it is characterised in that also include：Electromagnetism ferropexy
Plate, described electromagnet fixed plate is fixedly connected with source body group installing plate.
3. the pull rod device that can achieve source body motion as claimed in claim 1 is it is characterised in that described electromagnet fixed plate sets
There is opening, be used for fixing sliding electromagnet.
4. can achieve the pull rod device of source body motion as claimed in claim 1 it is characterised in that also including linear bearing, institute
State shifting Dynamic Loading body to be fixed in the body group fixed plate of source by linear bearing.
5. a kind of radiological unit, including：
At least one precollimator, described precollimator is provided with collimation opening along direction of axis line；
Collimater, described collimater is arranged on inside precollimator, and described collimater is provided with least two groups opening sizes
Collimation opening；
It is characterized in that, also include can achieve the pull rod device of source body motion, described pull rod device is arranged on outside precollimator,
Described pull rod device includes：Move Dynamic Loading body, for carrying source body, described shifting Dynamic Loading body is provided with logical along direction of axis line
Hole；
Source body group installing plate, carries source body for holding movable, and described source body group installing plate is provided with fluting along direction of axis line, institute
State the collimation opening that fluting is directed at described precollimator；
Mobile bar, is connected with moving Dynamic Loading body phase；And
Sliding electromagnet, is connected with mobile bar；And
The described center of circle moving Dynamic Loading body, precollimator and collimater coincides with a bit, when sliding electromagnet promotes mobile bar
When, mobile bar drives shifting Dynamic Loading body to move on the body group installing plate of source, moves the through hole on Dynamic Loading body and source body group installing plate
On fluting, the collimation register in precollimator and collimater or stagger.
6. radiological unit as claimed in claim 5 is it is characterised in that also include：Treatment head cavity, described precollimator is installed
On treatment head cavity, the center of circle of described treatment head cavity is overlapped with the center of circle of precollimator, collimater and shifting Dynamic Loading body.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/071987 WO2014131175A1 (en) | 2013-02-28 | 2013-02-28 | Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104203343A CN104203343A (en) | 2014-12-10 |
| CN104203343B true CN104203343B (en) | 2017-02-22 |
Family
ID=51427476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380004397.5A Expired - Fee Related CN104203343B (en) | 2013-02-28 | 2013-02-28 | Pull rod apparatus capable of implementing movement of source body and radiation apparatus of the pull rod apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104203343B (en) |
| WO (1) | WO2014131175A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107053B (en) * | 2015-08-27 | 2020-09-08 | 西安大医集团股份有限公司 | Intensity modulated radiotherapy device |
| CN105536155B (en) * | 2015-12-24 | 2018-03-16 | 河南科技大学第一附属医院 | One kind is treated with double-core radioactive source focusing arrangement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6512813B1 (en) * | 1999-05-03 | 2003-01-28 | Franz Krispel | Rotating stereotactic treatment system |
| CN2676951Y (en) * | 2003-12-31 | 2005-02-09 | 深圳市尊瑞科技有限公司 | Radiation therapy radiator |
| CN1666300A (en) * | 2002-07-05 | 2005-09-07 | 埃莱克塔公共有限公司 | Apparatus and method for radiation therapy where the collimatorhelmet comprises slidable plates for controlling the collimator openings |
| CN101239224A (en) * | 2007-07-16 | 2008-08-13 | 深圳市海博科技有限公司 | Radiation therapy driving device |
| CN201115752Y (en) * | 2007-11-27 | 2008-09-17 | 深圳市海博科技有限公司 | Multi-alignment-body radiation therapy device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202620505U (en) * | 2012-05-29 | 2012-12-26 | 深圳市奥沃医学新技术发展有限公司 | Collimation device and radiotherapy equipment capable of switching ray beam limiting unit |
-
2013
- 2013-02-28 CN CN201380004397.5A patent/CN104203343B/en not_active Expired - Fee Related
- 2013-02-28 WO PCT/CN2013/071987 patent/WO2014131175A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6512813B1 (en) * | 1999-05-03 | 2003-01-28 | Franz Krispel | Rotating stereotactic treatment system |
| CN1666300A (en) * | 2002-07-05 | 2005-09-07 | 埃莱克塔公共有限公司 | Apparatus and method for radiation therapy where the collimatorhelmet comprises slidable plates for controlling the collimator openings |
| CN2676951Y (en) * | 2003-12-31 | 2005-02-09 | 深圳市尊瑞科技有限公司 | Radiation therapy radiator |
| CN101239224A (en) * | 2007-07-16 | 2008-08-13 | 深圳市海博科技有限公司 | Radiation therapy driving device |
| CN201115752Y (en) * | 2007-11-27 | 2008-09-17 | 深圳市海博科技有限公司 | Multi-alignment-body radiation therapy device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014131175A1 (en) | 2014-09-04 |
| CN104203343A (en) | 2014-12-10 |
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