CN104955521B - Radiotherapy equipment and laser verification device therefor - Google Patents
Radiotherapy equipment and laser verification device therefor Download PDFInfo
- Publication number
- CN104955521B CN104955521B CN201480002955.9A CN201480002955A CN104955521B CN 104955521 B CN104955521 B CN 104955521B CN 201480002955 A CN201480002955 A CN 201480002955A CN 104955521 B CN104955521 B CN 104955521B
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- laser
- source
- collimater
- movable panel
- mounting hole
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 41
- 238000012795 verification Methods 0.000 title abstract 3
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 238000007405 data analysis Methods 0.000 claims abstract description 4
- 230000002285 radioactive effect Effects 0.000 claims description 37
- 230000001225 therapeutic effect Effects 0.000 claims description 28
- 238000004458 analytical method Methods 0.000 claims description 26
- 230000000052 comparative effect Effects 0.000 claims description 3
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000002560 therapeutic procedure Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000005260 alpha ray Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- 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
- A61N5/103—Treatment planning systems
-
- 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
- A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
-
- 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
- A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
- A61N2005/105—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using a laser alignment system
-
- 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
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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)
- Radiation-Therapy Devices (AREA)
Abstract
The present invention provides a laser verification device for use with a multi-source radiotherapy equipment. The multi-source radiotherapy equipment comprises multiple radiation sources, multiple collimators and a therapy bed. The multiple radiation sources are arranged in one-to-one correspondence to the multiple collimators. The laser verification device comprises: a positioning plate, fixed on the multi-source radiotherapy equipment and arranged between the radiation sources and the collimators; a movable plate, arranged on and movable relative to the positioning plate, and provided with multiple first mounting holes and multiple second mounting holes which are spaced apart from the multiple first mounting holes, the movable plat being used for switching the multiple first mounting holes or the multiple second mounting holes to positions corresponding to the multiple collimators; multiple laser emitters, arranged in the multiple second mounting holes respectively; and a collector-analyzer, arranged on the therapy bed and used for collecting beams emitted from the laser emitters and performing data analysis.
Description
Technical field
It is the present invention relates to a kind of multi-source radiotherapy equipment more particularly to a kind of for realizing being turned on and off for part source
Multi-source radiotherapy equipment laser checking device and radiotherapy apparatus.
Background technology
In Patients During Radiotherapy, in order to avoid RADI human body normal structure, it is necessary to highly precisely collimation device, shine
Launched field and patient body position are positioned.Laser orientation system is the equipment that precision calibration is commonly used in radiotherapy, its energy
Enough ensure the accuracy and repeatability of therapeutic equipment precision.However, the system accuracy of existing radiotherapy apparatus is typically by penetrating
Wild piece and focus Dose Calibration realize that complex operation, the time is long, relatively costly.
The content of the invention
In order to solve the above technical problems, verifying device the invention provides a kind of laser for multi-source radiotherapy equipment
And radiotherapy apparatus.
One embodiment of the invention provides a kind of laser checking device, for a multi-source radiotherapy equipment.The multi-source is put
Penetrating therapeutic equipment includes multiple radioactive sources, multiple collimaters and therapeutic bed, the multiple radioactive source and the multiple collimater
Correspond and set.The laser checking device includes：Location-plate, is fixed on the multi-source radiotherapy equipment, and set
Between the radioactive source and the collimater；Movable panel, is arranged on the location-plate and can be relative to the location-plate
It is mobile, multiple first mounting holes and multiple second mounting holes, the multiple first mounting hole are offered in the movable panel
With the multiple second mounting hole interval setting, the movable panel is for the multiple first mounting hole or multiple second to be pacified
Dress hole is switched to position corresponding with the multiple collimater；Multiple generating lasers, are separately positioned on the multiple second peace
In dress hole；And collection analysis device, it is arranged in the therapeutic bed, the light beam for gathering the laser transmitter projects is gone forward side by side
Row data analysis.Wherein, when the multiple radioactive source is closed, the movable panel sends out the laser in multiple second mounting holes
Emitter moves to position corresponding with the collimater, to cause that the light beam of the laser transmitter projects is irradiated to the collection
On analyzer；When the multiple radioactive source is opened, the movable panel by the multiple first mounting hole move to it is described
The corresponding position of collimater, described in causing where the radiation exposure that sends of the radioactive source to the correspondingly collection analysis device
The position of therapeutic bed.
Present invention also offers a kind of radiotherapy apparatus, including above-mentioned laser checking device.
The laser checking device that multi-source radiotherapy equipment of the invention is used, can be without radioactive source or radioactive source
In the case of closing, the precision and launched field shape of collimater are verified, and carry out the automatic calibration of equipment precision accordingly.And, use
Family can intuitively see the precision position of launched field shape and launched field and focus in the environment of without radiation exposure (radioactive source closing)
Put such that it is able to directly calibrate the precision of radiotherapy apparatus as needed.
Brief description of the drawings
Fig. 1 is the structural representation of multi-source radiotherapy equipment according to a first embodiment of the present invention.
Fig. 2 is the part-structure schematic diagram of the laser checking device of the multi-source radiotherapy equipment of Fig. 1.
Fig. 3 is the functional block diagram of the collection analysis device of the laser checking device of Fig. 2.
Fig. 4 is the structural representation of multi-source radiotherapy equipment according to a second embodiment of the present invention.
Specific embodiment
Make further more detailed description to technical scheme with reference to specific embodiment.Obviously, retouched
The embodiment stated is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, should all belong to
The scope of protection of the invention.
First embodiment
Fig. 1 is referred to, it is the structural representation of the radiotherapy apparatus 100 of first embodiment of the invention.In the present embodiment, institute
Radiotherapy apparatus 100 are stated for multi-source radiotherapy equipment.The radiotherapy apparatus 100 at least include that one carries source body 10, multiple radiation
Source 20, multiple precollimators 30, multiple collimaters 40, laser checking device 50 and a therapeutic bed 60.It is the multiple
Radioactive source 20 is arranged on load source body 10, laser checking device 50 be arranged on the radioactive source 20 and therapeutic bed 60 it
Between, the precollimator 30 is arranged between load source body 10 and laser checking device 50, and the collimater 40 is set
Verified between device 50 and the therapeutic bed 60 in the laser.The multiple radioactive source 20 and the multiple precollimator 30 with
And the multiple collimater 40 is corresponded and set.
In the present embodiment, load source body 10 is bowl-shape, and can be rotated relative to the collimater 40 so that the radiation
Source 20 can also move relative to the collimater 40.It is appreciated that in other embodiments, load source body 10 can also be round
Ring-type or arc shape, and the radioactive source 20 may be alternatively provided as being maintained static relative to the collimater 40.Load source body
Ray is provided with 10 by hole, when state is increased income, the ray of radioactive source 20 carries out radiation focusing by the ray by hole.
The pre-collimated passage corresponding with the position of radioactive source 20, the pre-collimated passage are offered on the precollimator 30
For realizing that ray limits beam function, useless alpha ray shield is fallen, and useful ray is focused on by pre-collimated passage
In focus.
The collimater 40 is provided with different openings size and the collimating aperture corresponding with the position of radioactive source 20, by collimation
The opening size in hole realizes focal point different size launched field.In the present embodiment, the collimater 40 is set to can be relative to described
Radioactive source 20 is moved, and is switched with the position for realizing different collimating apertures.It is understood that the collimater 40 may be alternatively provided as admittedly
It is fixed motionless, now, drive the position rotated to carry out different collimating apertures of radioactive source 20 to switch by carrying source body 10.
Fig. 2 is referred to, the laser checking device 50 includes location-plate 51, movable panel 52, multiple generating lasers 53
And collection analysis device 54.The location-plate 51 is fixed in the mounting bracket of the radiotherapy apparatus 100 (figure is not regarded), and is set
On the collimater 40.The movable panel 52 is arranged on the location-plate 51, and the generating laser 53 is arranged on
In the movable panel 52, the collection analysis device 54 is arranged in the therapeutic bed 60.
More specifically, the location-plate 51 is in straight panel shape, and a sliding groove (non-label) is offered on the location-plate 51.
In other embodiments, the shape of the location-plate 51 may also be configured to identical with the load source 10 shapes of body.
The movable panel 52 is arranged in the sliding groove of the location-plate 51, and can be along the sliding groove relative to institute
Location-plate 51 is stated to move.Specifically, the movable panel 52 is connected by a motor 55 with the location-plate 51.It is described
Motor 55 includes drive division 551 and driving section 553, and the drive division 551 is fixed on the location-plate 51, the transmission
Portion 553 is connected with the one end of the movable panel 52, and the movable panel 52 is followed described under the driving of the drive division 551
Moved relative to the location-plate 51 in the sliding groove driving section 553.Multiple first is offered in the movable panel 52
Mounting hole 521 and multiple second mounting holes 523, first mounting hole 521 and the interval setting of the second mounting hole 523.
The movable panel 52 be used for by the multiple first mounting hole 521 or multiple second mounting holes 523 be switched to it is the multiple
The corresponding position of collimater 40.In the present embodiment, the quantity of the mounting hole 523 of first mounting hole 521 and second is even number,
First mounting hole 521 is symmetrically distributed in the center line both sides of the movable panel 52, and second mounting hole 523 is also symmetrical
It is distributed in the center line both sides of the movable panel 52.The mounting hole 523 of first mounting hole 521 and second is both with respect to described
The center line of movable panel 52 forms specific inclination angle so that the extended line of the center line of multiple first mounting holes 521
Focus can be intersected at, and the extended line of the center line of multiple second mounting holes 523 can also intersect at the focus.
Wherein, the focus is fallen within the collection analysis device 54.In the present embodiment, the multiple first mounting hole 521 and multiple
Second mounting hole 523 is through hole, and the quantity of first mounting hole 521 is equal to the quantity of second mounting hole 523, and often
Spacing between two adjacent the first mounting holes 521 and the second mounting hole 523 is equal.When the motor 55 drives
When the movable panel 52 is moved, multiple first mounting holes 521 are alternately directed at described with multiple second mounting hole 523
The ray of load source body 10 is by hole and the collimating aperture of collimater 40.
The multiple generating laser 53 is separately positioned in the multiple second mounting hole 523.It is described in the present embodiment
The transmitting of generating laser 53 is the light for being located at visible light wave range.It is understood that in other embodiments, can also pass through
Other kinds of transmitter launches the light of the visible light wave range.
When treatment is needed, the multiple radioactive source 20 is opened, and the movable panel 52 is by the multiple first mounting hole
521 move to position corresponding with the collimating aperture of the collimater 40, are arrived with the radiation exposure for the radioactive source 20 is sent
In the therapeutic bed 60, that is, the position where focus.And when needing to carry out position detection, close the multiple radioactive source
20, the generating laser 53 in multiple second mounting holes 523 is moved to the movable panel 52 standard with the collimater 40
The corresponding position of straight hole, is irradiated on the collection analysis device 54 with the light beam for the generating laser 53 is launched.
The collection analysis device 54 is used for according to user's needs, gathers the light beam of the transmitting of generating laser 53 and carries out
Data analysis.Specifically, when therapeutic bed 60 moves to corresponding treatment position, and it is described to cause that the collection analysis device 54 is located at
When generating laser 53 launches the focal point of light, the collection analysis device 54 can gather the transmitting of the generating laser 53
Light spot shape, spot size, facula position, intensity of the various parameters of light beam, such as light beam etc..It is described in the present embodiment
Microprocessor is integrated with collection analysis device 54, the data that the microprocessor can be collected into the collection analysis device 54 are direct
Calculating is analyzed, and directly transmits calibration signal to load source body 10, precollimator 30, collimater 40 and therapeutic bed 60,
Calibrated with to it.Certainly, the setting of the collection analysis device 54 is not limited thereto.In other embodiments, it is described to adopt
Set analysis device 54 is connected with an equipment control computer, and the collection analysis device 54 can only carry out hot spot collection and data point
Analysis, data results then are issued into equipment control computer carries out later stage calculating treatment.
Fig. 3 is referred to, more specifically, the collection analysis device 54 includes acquisition module 541, referrer module 543, compares mould
Block 545 and calibration module 547.
The acquisition module 541 is used to gather the light beam of the transmitting of the generating laser 53, and obtains relevant parameter, for example
Light spot shape, spot size, facula position, intensity of light beam etc..In the present embodiment, the acquisition module 541 uses profile
The technology of identification, parameter collection is carried out to the light spot shape and spot size.
The referrer module 543 is used to prestore multiple original reference data.In the present embodiment, the referrer module
Original reference data in 543 be by the multi-source radiotherapy equipment carried out it is mechanically calibrated after, then measure the laser
Verify the relevant parameter of device 50 and obtain.Specially：Calibrated by frock in the precision of the multi-source radiotherapy equipment 100
After the completion of, radiotherapy apparatus 100 is in the closed mode of radioactive source 20.The generating laser 53 of the laser checking device 50 is moved
To the position of the collimating aperture corresponding to collimater 40, generating laser 53 is powered and laser beam occurs, and laser beam penetrated by collimating aperture
Go out.Be sent to laser collection analysis device 54 at focal position by therapeutic bed 60, and it is (spot size, size, strong to carry out data acquisition
Degree, position etc.).The position coordinate data of data and the Current therapeutic bed 60 that laser collection analysis device 54 is gathered is input to laser
Verify in the microprocessor of device 50, the original reference data of device 50 are verified as laser.In other embodiments, in order to carry
The accuracy of initial parameter high, the original reference data may also be set to the average value by multiple laser check results.
The comparison module 545 is used in the data that currently collect acquisition module 541 and the referrer module 543
Original reference data compare.In the present embodiment, the comparison module 545 will be collected currently by setting up a coordinate system
Data and the original reference data be respectively identified in the coordinate system, by the comparing to coordinate points, and obtain described
The comparative result of the original reference data in the current data for collecting and the referrer module 543.
The calibration module 547 is used for the comparative result according to the comparison module 545, is calculated calibration value, and will
The calibration value feeds back to the collimater 40 and therapeutic bed 60, and school is carried out with to the collimater 40 and therapeutic bed 60
Standard, obtains standard compliant relevant parameter.
When needing to carry out equipment precision calibration, radiotherapy apparatus 100 is in the closed mode of radioactive source 20, laser is gathered
Analyzer 54 is placed on the ad-hoc location of the therapeutic bed 60, and starts position precision checking button.Therapeutic bed 60 drives laser
Collection analysis device 54 is moved by the coordinate value track of the therapeutic bed 60 recorded in laser checking device 50.The then position of collimater 40
At the collimating aperture of original reference data acquisition, movable plate moves to generating laser 53 corresponding with the collimating aperture of collimater 40
Position, generating laser 53 be powered send laser beam.Laser collection analysis device 54 carries out data acquisition, analysis.Laser is verified
Data that device 50 will be collected currently and original reference data (spot size, size, intensity, position etc.) are compared meter
Calculate, calculate deviation, and be supplied to the control device of collimater 40 and therapeutic bed 60 so that control device is according to deviation data
Carry out device location amendment, it is ensured that equipment precision.
Second embodiment
Fig. 4 is referred to, the multi-source radiotherapy equipment 200 of second embodiment of the invention is radiated with the multi-source of first embodiment
Therapeutic equipment 100 is roughly the same, and its difference is：Multiple generating laser 53a are arranged on multiple the of the movable panel 52a
While two mounting hole 523a, the multiple radioactive source 20a is also set, respectively on multiple first installations of the movable panel 52a
In the 521a of hole.That is, the movable panel 52a of laser checking device 50a instead of the rotatable load in first embodiment
Source body 10 so that radioactive source 20a and generating laser 53a is arranged on movable panel 52a simultaneously.Now, the precollimator
30a is arranged between the movable panel 52a and the collimater 40a of the laser checking device 50a.Thus, radiotherapy is saved
The volume and cost of equipment 200.
The laser checking device that multi-source radiotherapy equipment of the invention is used, can be without radioactive source or radioactive source
In the case of closing, the precision and launched field shape of collimater are verified, and carry out the automatic calibration of equipment precision accordingly.And, use
Family can intuitively see the precision position of launched field shape and launched field and focus in the environment of without radiation exposure (radioactive source closing)
Put such that it is able to directly calibrate radiotherapy apparatus precision as needed.
Described above is only the preferred embodiment in the embodiment of the present invention, can not limit this hair with this certainly
Bright interest field, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (10)
1. a kind of laser verifies device, and for a multi-source radiotherapy equipment, the multi-source radiotherapy equipment is put including multiple
Source, multiple collimaters and therapeutic bed are penetrated, the multiple radioactive source is corresponded with the multiple collimater and set, and its feature exists
In the laser checking device includes：
Location-plate, is fixed on the multi-source radiotherapy equipment, and be arranged between the radioactive source and the collimater；
Movable panel, is arranged on the location-plate and can be moved relative to the location-plate, is offered in the movable panel
Multiple first mounting holes and multiple second mounting holes, the multiple first mounting hole set with the multiple second mounting hole interval
Put, the movable panel is used to be switched to the multiple first mounting hole or multiple second mounting holes and the multiple collimater
Corresponding position；
Multiple generating lasers, are separately positioned in the multiple second mounting hole；And
Collection analysis device, is arranged in the therapeutic bed, for gathering the light beam of the laser transmitter projects and carrying out data
Analysis；
Wherein, when the multiple radioactive source is closed, the movable panel moves the generating laser in multiple second mounting holes
Position corresponding with the collimater is moved, to cause that the light beam of the laser transmitter projects is irradiated to the collection analysis device
On；When the multiple radioactive source is opened, the movable panel moves to and the collimater the multiple first mounting hole
Corresponding position, to cause the therapeutic bed where the radiation exposure that sends of the radioactive source to the correspondingly collection analysis device
Position.
2. laser as claimed in claim 1 verifies device, it is characterised in that the multi-source radiotherapy equipment also includes load source
Body and precollimator, the multiple radioactive source are arranged on the body of the load source, and the precollimator is arranged on the laser and tests
Between card device and load source body.
3. laser as claimed in claim 1 verifies device, it is characterised in that the multi-source radiotherapy equipment also includes pre- standard
Straight device, the precollimator is arranged between the location-plate of the laser checking device and the collimater, the multiple radiation
Source is separately positioned in the multiple first mounting hole.
4. laser as claimed in claim 1 verifies device, it is characterised in that the laser checking device also includes driving electricity
Machine, the motor includes drive division and driving section, and the drive division is arranged on the location-plate, the driving section and institute
Movable panel connection is stated, the movable panel follows the driving section relative to the positioning under the driving of the drive division
Plate is moved.
5. laser as claimed in claim 1 verifies device, it is characterised in that first mounting hole and the second mounting hole are homogeneous
Specific inclination angle is formed for the center line of the movable panel so that the extension of the center line of multiple first mounting holes
Line can intersect at focus, and the extended line of the center line of multiple second mounting holes can also intersect at the focus.
6. laser as claimed in claim 1 verifies device, it is characterised in that the collection analysis device includes：
Acquisition module, for gathering the light beam of the laser transmitter projects, and obtains relevant parameter；
Referrer module, for prestoring multiple original reference data；
Comparison module, for the original reference data ratio in the data that currently collect acquisition module and the referrer module
Compared with；
Calibration module, for the comparative result according to the comparison module, is calculated calibration value, and the calibration value is fed back
To the collimater and therapeutic bed, calibrated with to the collimater and therapeutic bed, obtain standard compliant related ginseng
Number.
7. laser as claimed in claim 6 verifies device, it is characterised in that the relevant parameter includes spot size, light intensity
Degree and facula position.
8. laser as claimed in claim 7 checking device, it is characterised in that the original reference data in the referrer module are
By the average value of multiple laser check results.
9. laser as claimed in claim 7 checking device, it is characterised in that the original reference data in the referrer module are
By the multi-source radiotherapy equipment carried out it is mechanically calibrated after, then measure the relevant parameter of the laser checking device and obtain
.
10. a kind of radiotherapy apparatus, including multiple radioactive sources, multiple collimaters, therapeutic bed and such as claim 1-9 are any one
Laser checking device described in, the multiple radioactive source is corresponded with the multiple collimater and set, the laser checking
Device is arranged between the radioactive source and the therapeutic bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710227569.5A CN107050665B (en) | 2014-11-21 | 2014-11-21 | Radiotherapy equipment and laser verification device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2014/091843 WO2015096572A1 (en) | 2013-12-25 | 2014-11-21 | Radiotherapy equipment and laser verification device therefor |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710227569.5A Division CN107050665B (en) | 2014-11-21 | 2014-11-21 | Radiotherapy equipment and laser verification device thereof |
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| Publication Number | Publication Date |
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| CN104955521A CN104955521A (en) | 2015-09-30 |
| CN104955521B true CN104955521B (en) | 2017-05-24 |
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| CN201710227569.5A Active CN107050665B (en) | 2014-11-21 | 2014-11-21 | Radiotherapy equipment and laser verification device thereof |
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| CN201710227569.5A Active CN107050665B (en) | 2014-11-21 | 2014-11-21 | Radiotherapy equipment and laser verification device thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108744311A (en) * | 2018-06-14 | 2018-11-06 | 宋世鹏 | X-ray self-focusing radiographic source and its application method |
| CN110101977B (en) * | 2019-05-07 | 2021-08-24 | 沈阳东软智睿放疗技术有限公司 | Method and device for realizing position calibration of medical linear accelerator |
| CN112859147B (en) * | 2019-09-26 | 2023-09-22 | 中国计量科学研究院 | Calibration system for forming environment for calibrating polarization degree |
| CN110779442B (en) * | 2019-10-18 | 2021-05-11 | 北京东软医疗设备有限公司 | ISO precision testing method and system for multi-axis medical interventional therapy equipment |
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- 2014-11-21 CN CN201480002955.9A patent/CN104955521B/en not_active Expired - Fee Related
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| CN1778274A (en) * | 2004-11-22 | 2006-05-31 | 深圳市益普生医疗设备发展有限公司 | X ray therapeutical system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107050665A (en) | 2017-08-18 |
| CN107050665B (en) | 2020-01-24 |
| CN104955521A (en) | 2015-09-30 |
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