CN101337113B - Quality control system and method for radiotherapy device - Google Patents
Quality control system and method for radiotherapy device Download PDFInfo
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- CN101337113B CN101337113B CN2008101980497A CN200810198049A CN101337113B CN 101337113 B CN101337113 B CN 101337113B CN 2008101980497 A CN2008101980497 A CN 2008101980497A CN 200810198049 A CN200810198049 A CN 200810198049A CN 101337113 B CN101337113 B CN 101337113B
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Abstract
The invention discloses a quality control system and a method for a radiotherapy device. The quality control system comprises a control terminal connected to a host computer for outputting a control command to the master machine; the host computer for controlling the operation of an orientator connected to the host computer based on the control command; the orientator for operating based on the control command, collecting the output quantity of the radiotherapy device and transmitting to a dose meter; and the dose meter for detecting the output quantity of the radiotherapy device collected by the radiotherapy device. Accordingly, the invention further discloses a quality control method for the radiotherapy device. By adopting the orientator to collect the output quantity of the radiotherapy device, the artificial measuring error is reduced, the measurement time is shortened, the working efficiency is improved, and the operating staff is safe from the radiation hazard.
Description
Technical field
The present invention relates to the control detection field of armarium, be specifically related to a kind of control system and method that is used for radiotherapy equipment.
Background technology
Radiotherapy is the important means of oncotherapy, is one of subject that develops rapidly, and the raising of radiation therapy technology level closely links to each other with the progress of equipment with the improvement of curative effect.Very high with the required precision of equipment as radiotherapy, its performance and precision have directly influenced radiocurable final effect.The application of particularly current precise radiotherapy method, precision to radiotherapy apparatus requires higher, therefore dispose high-performance, high-precision radiotherapy equipment is radiocurable basis, and the regular maintenance of these radiotherapy apparatus, maintenance and detection and adjustment are radiocurable guarantees.Particularly the detection of radiotherapy apparatus is a requisite measure of carrying out the radiotherapy quality control.Along with the development of tumour radiotherapy cause, the problem for quality assurance of radiotherapy is subjected to being engaged in oncotherapy staff's attention day by day.The basic goal of radiotherapy be to tumor region enough, precise therapeutic dosage amount, and normal surrounding tissue and organ are subjected to according to minimum, to improve tumor control rate, to reduce the radiation complication of normal structure.For the safety that guarantees radiotherapy and effectively, must carry out meticulous design and execution accurately to whole treatment plan.The overall process of finishing treatment needs implementation quality to guarantee, requires radiotherapy doctor, physics teacher, radiotherapy technology person to cooperatively interact, and makes joint efforts, and reduces each link error.Many errors can be carried out regular quality control by the performance of therapy apparatus and be solved.Radiocurable quality assurance complexity, and the present radiotherapy quality assurance still depends on QA quality assurance's profile and experience to a great extent, and the very big possible artificial measurement error of existence, Measuring Time is long, inefficiency, this returns operator simultaneously and brings certain radiation hazradial bundle.
Summary of the invention
Be to provide a kind of quality control system and method that is used for radiotherapy equipment based on the deficiencies in the prior art the object of the invention, Measuring Time shortens, and work efficiency improves, and artificial measurement error reduces, and increases the reliability of measurement result.
For achieving the above object, a kind of quality control system that is used for radiotherapy equipment provided by the invention comprises:
Control terminal links to each other with main frame, is used to export control instruction to main frame;
Main frame is used for controlling according to described control instruction the running of connected position finder;
Position finder, it operates according to described control instruction, gathers the output of radiotherapy equipment and is sent to doser;
Doser is used to detect the output of the radiotherapy equipment that described position finder collects.
Particularly, described main frame comprises: circuit main board, be used to receive and handle the control instruction of described control terminal, and the output corresponding instruction is to stepper motor driving circuit or electric rotating machine drive circuit; Stepper motor driving circuit, the instruction generation first driving signal of exporting according to described circuit main board exports described position finder to; The electric rotating machine drive circuit, the instruction generation second driving signal of exporting according to described circuit main board exports described position finder to; Power supply is used for providing working power to described circuit main board, described stepper motor driving circuit and electric rotating machine drive circuit.
Described position finder comprises: base plate, its upper surface is provided with first gear, described first gear by electric rotating machine according to described second drive; Rotating panel is connected by rotating shaft with the center of described base plate, and its lower surface is provided with rotation disc, and the circumference of described rotation disc is provided with second gear with described first gears engaged, and described rotating panel upper surface is provided with slide rail; Slidable panels is connected on the described rotating panel by described slide rail, and described slidable panels top is connected with the probe that is used to gather the output of radiotherapy equipment and is sent to doser; Motor is connected with described slidable panels, drives the signal controlling slidable panels along described slide rail horizontal slip according to described first.
Described base plate top is provided with two limited blocks, and accordingly, described rotating circular disk circumference is provided with one and is used to limit the block that Plane of rotation only can rotate between two limited blocks.Described two limited blocks limit described Plane of rotation and horizontally rotate an angle of 90 degrees degree.
This system also comprises photographic head, is used to gather the video information of described position finder work process, and is sent to main frame, and repeated transmission is given control terminal and shown.
Described control terminal is a PC; Described PC links to each other with main frame by netting twine.
The present invention also provides a kind of method of quality control that is used for radiotherapy equipment, comprising:
Control terminal is exported first control instruction to main frame;
Described first control instruction of host process, and export the first driving signal to position finder;
Position finder drives the signal running according to described first, gathers first output of radiotherapy equipment and is sent to doser;
Control terminal is exported second control instruction to main frame;
Described second control instruction of described host process, and export the second driving signal to position finder;
Position finder drives the signal running according to described second, gathers second output of radiotherapy equipment and is sent to doser;
Doser detects first and second outputs of the radiotherapy equipment that described position finder collects.
Particularly, described position finder drives the signal running according to described second, be on the position finder electric rotating machine according to described second drive signal drive rotating panel with its engagement revolve turn 90 degrees after, stop the rotation, electric rotating machine returns a signal and gives the electric rotating machine drive circuit and be sent to circuit main board, circuit main board triggered stepper motor driving circuit and exported the 3rd and drive signal and be sent to motor in the position finder this moment, motor drives the signal running according to the described the 3rd, the drive slidable panels slides, and slidable panels top probe is gathered second output of radiotherapy equipment and is sent to doser.
The present invention adopts motor and electric rotating machine to control the output that position finder is gathered radiotherapy equipment automatically, reduced artificial measurement error, Measuring Time is short, high efficiency, simultaneously, make operator avoid radiation hazradial bundle by the remote isolated operation position finder of control terminal.
For making the present invention easier to understand, further set forth a kind of quality control system and method that is used for radiotherapy equipment of the present invention below in conjunction with accompanying drawing.
Description of drawings
The block diagram of an embodiment of the quality control system that Fig. 1 is used for radiotherapy equipment for the present invention is a kind of.
Fig. 2 is the concrete block diagram of the preferred embodiment of Fig. 1 of the present invention.
Fig. 3 is the vertical view of the preferred embodiment of position finder among Fig. 1 of the present invention.
Fig. 4 is the cutaway view of the preferred embodiment A-A of position finder among Fig. 3 of the present invention.
Fig. 5 is the cutaway view of the preferred embodiment B-B of position finder among Fig. 4 of the present invention.
The flow chart of an embodiment of the method for quality control that Fig. 6 is used for radiotherapy equipment for the present invention is a kind of.
The specific embodiment
A kind of quality control system that is used for radiotherapy equipment of the present invention is to be specifically designed to measure for example aid system of the wild index of illumination of clinac and cobalt-60 treating machines of medical radiotherapy equipment.The ray vertical irradiation that radiotherapy equipment radiates out is to the slidable panels of this system's position finder, by the probe horizontal slip on the computer-controlled stepper motor drive slidable panels, thereby gather the information of ray output, send doser to and measure the wild index of illumination of radiotherapy equipment, mainly comprise repeatability and the uniformity and the penumbra of light open country.Wherein computer control terminal and doser are placed on an independent room, and position finder and radiotherapy equipment are placed on another isolated room, thereby make operator can carry out detecting operation efficiently and safely.
With reference now to accompanying drawing, describe embodiments of the invention, Fig. 1 is the block diagram of an embodiment of a kind of quality control system that is used for radiotherapy equipment of the present invention, and this system comprises:
Control terminal 1 links to each other with main frame, is used to export control instruction to main frame; Control terminal 1 can be a PC, and it links to each other with main frame to the main frame sending controling instruction by netting twine;
Position finder 3, it operates according to described control instruction, gathers the output of radiotherapy equipment and is sent to doser;
Fig. 2 is the concrete block diagram of the preferred embodiment of Fig. 1 of the present invention.Described main frame 2 comprises: circuit main board 201, be used to receive and handle the control instruction of described control terminal PC 1, and the output corresponding instruction is to stepper motor driving circuit 202 or electric rotating machine drive circuit 203; Stepper motor driving circuit 202 produces first according to the instruction of described circuit main board output and drives signal and export motor 303 in the described position finder 3 to, and motor 303 drives the signal running according to first and drives probe and gather the output of radiotherapy equipment and be sent to doser 4; The instruction generation second driving signal that electric rotating machine drive circuit 203 is exported according to described circuit main board 201 exports the electric rotating machine 316 in the described position finder 3 to, and electric rotating machine 316 drives the signal running according to second; Power supply 204 is used for providing working power to described circuit main board 201, described stepper motor driving circuit 202 and electric rotating machine drive circuit 203.CCD photographic head 5 is connected on the circuit main board of main frame 2 by USB interface, be used to gather the video information of described position finder 3 work process, and be sent to main frame 2, send control terminal PC 1 to by netting twine again and show that wherein the pixel of CCD photographic head 5 is greater than 300,000.
Describe the internal mechanical structure and the operation principle of position finder 3 in detail below in conjunction with accompanying drawing.Fig. 3, Fig. 4, Fig. 5 are respectively the vertical view of the preferred embodiment of position finder among Fig. 1 of the present invention, the vertical sectional view of A-A, and the horizontal cross of B-B.
As Fig. 3, Fig. 4 and shown in Figure 5, position finder comprises:
Described position finder 3 comprises: base plate 311, its upper surface are provided with first gear 312, and lower surface is provided with an electric rotating machine 316, are used for rotating according to described second drive, first gear 312; Rotating panel 301 is connected by rotating shaft with the center of described base plate 311, rotating panel 301 can horizontally rotate around this rotating shaft, its lower surface is provided with rotation disc 317, the circumference of described rotation disc 317 is provided with second gear with 312 engagements of described first gear, electric rotating machine 316 drives first gear 312 and rotates drive second gear, thereby makes rotation disc 317 band rotating panels 301 horizontally rotate;
Described rotating panel 301 upper surfaces are provided with two horizontal slide rails 305; Slidable panels 302 is connected on the described rotating panel 301 by described slide rail 305, and described slidable panels 302 tops are connected with and are used to the probe 304 gathering the output of radiotherapy equipment and be sent to doser 4; Being provided with one in the motor 303 can be around the screw rod of its main axis rotation, this screw rod and described slidable panels 302 are connected by volution, when motor 303 rotates according to its screw rod of first drive that receives, volution moves horizontally along screw rod, thereby drives slidable panels 302 along slide rail 305 horizontal slips parallel with screw rod.
Its performance indications comprise: 1, probe 304 round trips are 150 millimeters; The anglec of rotation of rotating panel 301 is 90 degree, and error is in positive and negative 0.2 degree scope; 2, probe 304 setting accuracies are not more than 0.2 millimeter; 3, repeatability is not more than 0.2 millimeter.
Describe the workflow of this system in detail below in conjunction with accompanying drawing 6.
At first, ready work, device initialize, make each equipment and instrument of system all be in original state, the rotating panel of position finder is adjusted to the position that overlaps fully with base plate, and radiotherapy apparatus to be detected is placed on the top of position finder, make its beam vertical irradiation center above the rotating panel of position finder.Wherein, position finder, radiotherapy equipment, photographic head, main frame are placed in the independent room, control terminal PC and doser are placed on the outside, room, operator are by the running of each equipment in the video control room of photographic head shooting like this, thereby improved work efficiency, the harm of having avoided x radiation x to bring.Below be detailed workflow step:
Step S01, control terminal export first control instruction to main frame; Operator send the control instruction of measuring radiotherapy equipment horizontal direction output by computer, and this instruction comprises relevant parameter, for example the horizontal coordinate scale value of Ce Lianging etc.;
Step S02, the circuit main board in the main frame handle above-mentioned first control instruction, and the triggering stepper motor driving circuit output first driving signal is sent to the motor in the position finder;
Step S03, motor drives the slidable panels horizontal slip according to the described first driving signal running, and the output of the radiotherapy equipment of the corresponding horizontal coordinate scale value of probe collection position, slidable panels top also is sent to doser;
Step S04, control terminal export second control instruction to main frame; Operator send the control instruction of measuring radiotherapy equipment vertical direction output by computer, and this instruction comprises relevant parameter, for example the vertical coordinate scale value of Ce Lianging etc.;
Step S05, the circuit main board in the main frame handle the also parameters such as vertical coordinate scale value of storage measurement of described second control instruction, and the triggering electric rotating machine drive circuit output second driving signal is sent to the electric rotating machine in the position finder;
Step S06, electric rotating machine drives signal driven gear 312 according to described second and rotates, thereby drive horizontally rotates with the rotating circular disk 317 of its engagement, after rotating panel revolves and turn 90 degrees, link stopper is lived for 315 limited 314 grades, stop the rotation, this moment, slidable panels was in and the vertical state of base plate, electric rotating machine returns a signal and gives the electric rotating machine drive circuit and be sent to circuit main board, circuit main board triggered stepper motor driving circuit and exported the 3rd and drive signal and be sent to motor in the position finder this moment, motor drives the signal running according to the described the 3rd, the drive slidable panels slides, and the output of the radiotherapy equipment vertical direction of the corresponding vertical coordinate scale value of probe collection position, slidable panels top also is sent to doser.
Step S07, doser detect the horizontal direction of the radiotherapy equipment that described position finder collects and the output of vertical direction, and show measurement result.
Above disclosed only is preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (7)
1. a control system that is used for radiotherapy equipment is characterized in that, comprising:
Control terminal links to each other with main frame, is used to export control instruction to main frame;
Main frame is used for controlling according to described control instruction the running of connected position finder;
Position finder, it operates according to described control instruction, gathers the output of radiotherapy equipment and is sent to doser;
Doser is used to detect the output of the radiotherapy equipment that described position finder collects;
Wherein, described main frame comprises:
Circuit main board is used to receive and handle the control instruction of described control terminal, and the output corresponding instruction is to stepper motor driving circuit or electric rotating machine drive circuit;
Stepper motor driving circuit, the instruction generation first driving signal of exporting according to described circuit main board exports described position finder to;
The electric rotating machine drive circuit, the instruction generation second driving signal of exporting according to described circuit main board exports described position finder to;
Power supply is used for providing working power to described circuit main board, described stepper motor driving circuit and electric rotating machine drive circuit;
Described position finder comprises:
Base plate, its upper surface is provided with first gear, described first gear by electric rotating machine according to described second drive;
Rotating panel is connected by rotating shaft with the center of described base plate, and its lower surface is provided with rotation disc, and the circumference of described rotation disc is provided with second gear with described first gears engaged, and described rotating panel upper surface is provided with slide rail;
Slidable panels is connected on the described rotating panel by described slide rail, and described slidable panels top is connected with the probe that is used to gather the output of radiotherapy equipment and is sent to doser;
Motor is connected with described slidable panels, drives the signal controlling slidable panels along described slide rail horizontal slip according to described first.
2. a kind of control system that is used for radiotherapy equipment as claimed in claim 1, it is characterized in that, described base plate top is provided with two limited blocks, and accordingly, described rotation disc circumference is provided with one and is used to limit the block that rotating panel only can rotate between two limited blocks.
3. a kind of control system that is used for radiotherapy equipment as claimed in claim 2 is characterized in that, described two limited blocks limit described rotating panel and horizontally rotate an angle of 90 degrees degree.
4. a kind of control system that is used for radiotherapy equipment as claimed in claim 1 is characterized in that it also comprises photographic head, is used to gather the video information of described position finder work process, and is sent to main frame, and repeated transmission is given control terminal and shown.
5. a kind of control system that is used for radiotherapy equipment as claimed in claim 1 is characterized in that described control terminal is a PC.
6. a kind of control system that is used for radiotherapy equipment as claimed in claim 5 is characterized in that described PC links to each other with main frame by netting twine.
7. a control method that is used for radiotherapy equipment is characterized in that, comprising:
Control terminal is exported first control instruction to main frame;
Described first control instruction of host process, and export the first driving signal to position finder;
Position finder drives the signal running according to described first, and the motor on the described position finder drives signal according to described first makes slidable panels do horizontal slip, gathers the horizontal direction output of radiotherapy equipment and is sent to doser;
Control terminal is exported second control instruction to main frame;
Described second control instruction of host process, and export the second driving signal to position finder;
Position finder drives the signal running according to described second, gathers the vertical direction output of radiotherapy equipment and is sent to doser;
Doser detects the horizontal direction and the vertical direction output of the radiotherapy equipment that described position finder collects;
Wherein, described position finder drives the signal running according to described second, be on the position finder electric rotating machine according to described second drive signal drive rotating panel with its engagement revolve turn 90 degrees after, stop the rotation, electric rotating machine returns a signal and gives the electric rotating machine drive circuit and be sent to circuit main board, circuit main board triggered stepper motor driving circuit and exported the 3rd and drive signal and be sent to motor in the position finder this moment, motor drives the signal running according to the described the 3rd, the drive slidable panels slides, and slidable panels top probe is gathered the vertical direction output of radiotherapy equipment and is sent to doser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101980497A CN101337113B (en) | 2008-08-27 | 2008-08-27 | Quality control system and method for radiotherapy device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101980497A CN101337113B (en) | 2008-08-27 | 2008-08-27 | Quality control system and method for radiotherapy device |
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| CN101337113A CN101337113A (en) | 2009-01-07 |
| CN101337113B true CN101337113B (en) | 2010-12-15 |
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| CN103630924B (en) * | 2013-12-10 | 2016-01-06 | 上海市计量测试技术研究院 | The multidimensional detection device of body radioactivity surface monitoring system |
| CN104656122A (en) * | 2015-01-31 | 2015-05-27 | 成都理工大学 | Multi-dimensional nuclear safety door detection and verification device |
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|---|---|---|---|---|
| CN2755735Y (en) * | 2004-12-13 | 2006-02-01 | 房吉旺 | Calibrating instrument for multifunctional radiotherapeutic apparatus |
| CN1857160A (en) * | 2006-05-16 | 2006-11-08 | 杨诚 | Positioning precision detecting method and device for medical radiotherapy equipment |
| CN1919374A (en) * | 2005-08-25 | 2007-02-28 | 惠小兵 | Radiation therapeutical irradiation device |
| CN2889199Y (en) * | 2006-03-13 | 2007-04-18 | 山东省肿瘤医院 | Organ movement simulated platform for imaging analysis and guidance of radiotherapy |
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- 2008-08-27 CN CN2008101980497A patent/CN101337113B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2755735Y (en) * | 2004-12-13 | 2006-02-01 | 房吉旺 | Calibrating instrument for multifunctional radiotherapeutic apparatus |
| CN1919374A (en) * | 2005-08-25 | 2007-02-28 | 惠小兵 | Radiation therapeutical irradiation device |
| CN2889199Y (en) * | 2006-03-13 | 2007-04-18 | 山东省肿瘤医院 | Organ movement simulated platform for imaging analysis and guidance of radiotherapy |
| CN1857160A (en) * | 2006-05-16 | 2006-11-08 | 杨诚 | Positioning precision detecting method and device for medical radiotherapy equipment |
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