CN104203343A - 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
- CN104203343A CN104203343A CN201380004397.5A CN201380004397A CN104203343A CN 104203343 A CN104203343 A CN 104203343A CN 201380004397 A CN201380004397 A CN 201380004397A CN 104203343 A CN104203343 A CN 104203343A
- Authority
- CN
- China
- Prior art keywords
- source
- pull rod
- precollimator
- dynamic loading
- collimater
- 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
- 230000033001 locomotion Effects 0.000 title claims description 11
- 230000005855 radiation Effects 0.000 title abstract description 7
- 229910017052 cobalt Inorganic materials 0.000 abstract description 15
- 239000010941 cobalt Substances 0.000 abstract description 15
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract 1
- 238000002560 therapeutic procedure Methods 0.000 abstract 1
- 206010028980 Neoplasm Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 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
- 238000006467 substitution reaction Methods 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
The pull rod device and its radiological unit of a kind of achievable source body motion
Technical field
The present invention relates to realize that radiological dose adjusts strong pull rod device and its radiological unit within the specific limits in medical instruments field, more particularly to a kind of gamma knife equipment by being turned on and off source body.Background technology
In current gamma knife equipment, including for produce the cobalt source of radioactive ray, the load source body for placing cobalt source and with the body concentric collimater in load source.As shown in figure 1, the cobalt source includes multiple collimater openings on the fixed position distribution of source body, described every relatively cobalt source position of collimater is carried, the opening size of the collimation opening of each collimater is different.Over the course for the treatment of, collimater rotates around focus simultaneously with carrying source body.In switch collimators opening, by collimater around focus it is relative carry source body and rotate to an angle switch the collimater with different openings size, to realize focus close rate that field size and focal point fixed under permanent opening size on focal plane be fixed under being open herein.
Aforesaid way has the following disadvantages：Because cobalt source position is fixed, collimater is that one rotates around focus, each collimater opening carries cobalt source position on the body of source and fixed relatively, and only rotates to realize the change of field,fixed shape around focus by collimater, 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.The content of the invention
The present invention provides a kind of pull rod device and its radiological unit for opening and closing source body, the tune powerful to realize focus dosage.Include the shifting Dynamic Loading body for being used to carry source body the embodiments of the invention provide a kind of pull rod device of achievable source body motion, the shifting Dynamic Loading body is provided with through hole along direction of axis line, source body group installing plate, source body is carried for holding movable, the source body group installing plate is provided with fluting along direction of axis line, and mobile bar is connected with moving Dynamic Loading body phase, sliding electromagnet, is connected with mobile bar.
Preferably, when sliding electromagnet promotes mobile bar, mobile bar drives shifting Dynamic Loading body to be moved on the body group installing plate of source, the through hole on shifting Dynamic Loading body is alignd or is staggered with the fluting on the body group installing plate of source.Preferably, in addition to electromagnet fixed plate, the electromagnet fixed plate is fixedly connected with source body group installing plate.Preferably, the electromagnet fixed plate is provided with opening, and electromagnet is promoted for fixed.Preferably, in addition to linear bearing, the 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 for being mounted with that the pull rod device of source body motion can be achieved, including at least one precollimator, the pull rod device is arranged on the outside of precollimator, the precollimator is open along direction of axis line provided with collimation, collimater, the collimater is arranged on the inside of precollimator, the collimation opening that the collimater is not waited provided with least two groups opening sizes, and the center of circle of the shifting Dynamic Loading body, precollimator and collimater is coincided with a bit.Preferably, in addition to treatment head cavity, the precollimator is arranged on treatment head cavity, and the center of circle of the treatment head cavity is overlapped with the center of circle of precollimator, collimater and shifting Dynamic Loading body.Preferably, the shifting Dynamic Loading body is under the promotion of sliding electromagnet, through hole and the collimation register in fluting, precollimator and the collimater in the body fixed plate of source moved on Dynamic Loading body or staggers.
The pull rod device and its radiological unit being turned on and off using the achievable source body of the embodiment of the present invention, the dynamic regulation of focus dosage is realized by the mobile combination being turned on or off of source body, makes the irradiation of tumour that different dosage fields are presented.
Brief description of the drawings
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.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples, Jin travelings Yi Walk of the present invention are described in 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 radiological unit of the inventive embodiments by Fig. 2 embodiment.As shown in Fig. 2 the radiological unit includes treatment head cavity, precollimator, collimater and moves Dynamic Loading body.Wherein, treatment head cavity cross section is substantially in inverted trapezoidal structure, and the substantially trapezoidal structure in precollimator cross section, precollimator is fixed by screws on treatment head cavity.And collimater cross section is in an annulus, and precollimator and treatment head inside cavities are arranged on, and are connected by bearing with treatment head cavity.Wherein, the center of circle of above-mentioned treatment head cavity, precollimator and collimater is converged at a bit, abbreviation axle center or radiation focus.In addition, the radiological unit also includes moving Dynamic Loading body, the shifting Dynamic Loading body is fixed on the outside of precollimator by screw, pin.In embodiments of the present invention, described to move the source body installed on Dynamic Loading body be cobalt source, and move the center of circle of the Dynamic Loading body along direction of axis line and overlapped with the above-mentioned center of circle, i.e. radiation focus.
As shown in figure 3, make the pull rod device that cobalt source is opened and closed in the radiological unit, in addition to Dynamic Loading body is moved, in addition to source body group installing plate, sliding electromagnet, mobile bar, electromagnet mounting plate and linear bearing.The source body group installing plate vertical section is in inverted F types structure, and is fixed on the outside of precollimator, and the shifting Dynamic Loading body is fixed on the body group installing plate of source by linear bearing.The shifting Dynamic Loading body is connected by screw, pin with mobile bar.In addition, mobile bar is connected with sliding electromagnet, and electromagnet is promoted to be arranged on electromagnet mounting plate.The vertical section of electromagnet mounting plate is in rectangular configuration, which is provided with opening, promotes electromagnet to be fixed on by the opening on electromagnet mounting plate.In addition, the electromagnet mounting plate is fixed on the body group installing plate of source.In actual use, electromagnet is promoted in switching electricity（Do not shown in figure）Under drive, sliding lever simultaneously drives shifting Dynamic Loading body to be moved on the body group installing plate of source.
In embodiments of the present invention, as shown in Figure 2, the radiological unit includes 4 shifting Dynamic Loading bodies, and each Dynamic Loading body that moves is provided with a through hole, and source body group installing plate along the fluting that direction of axis line is also provided with through hole matches on shifting Dynamic Loading body along direction of axis line.Edge on 4 precollimators, each precollimator
Axis direction is arranged on the collimation opening not waited provided with multigroup opening size then in the collimater on the inside of precollimator provided with a collimation opening, in inventive embodiments, as shown in Fig. 2 there is provided the different collimation opening of 4 groups of opening sizes.In actual use, treatment head cavity rotates around focus, collimater is switched to same group of opening size simultaneously, if now sliding electromagnet is in the case of energization, sliding lever simultaneously drives shifting Dynamic Loading body to move the through hole and the fluting on the body group installing plate of source, the collimation register on precollimator made on shifting Dynamic Loading body on the body group installing plate of source, we term it increase income, the radioactivity gamma rays that now cobalt source is sent focuses on axle center by the collimation opening on precollimator and collimater, reaches radiotherapy purpose.If sliding electromagnet is in the event of a power failure, sliding lever and drive move Dynamic Loading body moved in the body group fixed plate of source move Dynamic Loading body on through hole stagger completely with the fluting on the body group installing plate of source, we term it source of closing, the radioactivity gamma rays that now cobalt source is sent can not reach radiation focus by the fluting on the body group installing plate of source.In fact, user can be turned on and off by cobalt source on each shifting Dynamic Loading body, the change of focal point dosage is reached, so as to reach the regulatory function of focus dosage.For example, in embodiments of the present invention, 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 regulation of focal point dosage.
In embodiments of the present invention, the dynamic regulation of focus close rate is realized by the mobile combination being turned on or off of cobalt source, makes the irradiation of tumour that different dosage fields are presented.
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 (1)
- Claims1st, a kind of pull rod device of achievable source body motion, it is characterised in that including：Dynamic Loading body is moved, for carrying source body, the shifting Dynamic Loading body is provided with through hole along direction of axis line;Source body group installing plate, source body is carried for holding movable, and the source body group installing plate is provided with fluting along direction of axis line；Mobile bar, is connected with moving Dynamic Loading body phase；Sliding electromagnet, is connected with mobile bar.2nd, the pull rod device of achievable source body motion as claimed in claim 1, it is characterized in that, when pushing away sliding electromagnet promotion mobile bar, mobile bar drives shifting Dynamic Loading body to be moved on the body group installing plate of source, the through hole on shifting Dynamic Loading body is alignd or is staggered with the fluting on the body group installing plate of source.3rd, the pull rod device of achievable source body motion as claimed in claim 1, it is characterised in that also include：Electromagnet fixed plate, the electromagnet fixed plate is fixedly connected with source body group installing plate.4th, the pull rod device of achievable source body motion as claimed in claim 2, it is characterised in that the electromagnet fixed plate is provided with opening, for fixing sliding electromagnet.5th, the pull rod device of achievable source body motion as claimed in claim 1, it is characterised in that also including linear bearing, the shifting Dynamic Loading body is fixed in the body group fixed plate of source by linear bearing.6th, a kind of radiological unit of the pull rod device for the achievable source body motion being mounted with as described in any claim in claim 1-5, it is characterised in that including：At least one precollimator, the pull rod device is arranged on the outside of precollimator, and the precollimator is open along direction of axis line provided with collimation；Collimater, the collimater is arranged on the inside of precollimator, the collimation opening that the collimater is not waited provided with least two groups opening sizes； The center of circle for moving Dynamic Loading body, precollimator and collimater is coincided with a bit.7th, radiological unit as claimed in claim 6, it is characterised in that also include：Treatment head cavity, the precollimator is arranged on treatment head cavity, and the center of circle of the treatment head cavity is overlapped with the center of circle of precollimator, collimater and shifting Dynamic Loading body.8th, radiological unit as claimed in claim 6, it is characterized in that, the shifting Dynamic Loading body through hole and the collimation register in fluting, precollimator and the collimater in the body fixed plate of source moved on Dynamic Loading body or staggers under the promotion of sliding electromagnet.
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 true CN104203343A (en) | 2014-12-10 |
| CN104203343B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536155A (en) * | 2015-12-24 | 2016-05-04 | 河南科技大学第一附属医院 | Double-nuclear radioactive source focusing apparatus used for treatment |
| 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 |
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 |
Cited By (3)
| 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 |
| CN105536155A (en) * | 2015-12-24 | 2016-05-04 | 河南科技大学第一附属医院 | Double-nuclear radioactive source focusing apparatus used for treatment |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014131175A1 (en) | 2014-09-04 |
| CN104203343B (en) | 2017-02-22 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20170222 |