CN207186926U - Leaf position monitoring device, multi-leaf optical grating and the therapeutic equipment of a kind of multi-leaf optical grating - Google Patents
Leaf position monitoring device, multi-leaf optical grating and the therapeutic equipment of a kind of multi-leaf optical grating Download PDFInfo
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- CN207186926U CN207186926U CN201720011391.6U CN201720011391U CN207186926U CN 207186926 U CN207186926 U CN 207186926U CN 201720011391 U CN201720011391 U CN 201720011391U CN 207186926 U CN207186926 U CN 207186926U
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Abstract
The utility model provides a kind of leaf position monitoring device, multi-leaf optical grating and the therapeutic equipment of multi-leaf optical grating, is related to medical instruments field, and blade includes may pass through region for forming beam along the front end face and rear end face on blade movement direction, the front end face of blade；Leaf position monitoring device includes：Space wave launcher, space wave launcher can launch the space wave of straightline propagation, and the space wave that space wave launcher is sent is radiated on the rear end face of blade；Space wave receiver, it is arranged in the light path for the reflection space ripple that the rear end face through blade reflects, receives the reflection space ripple of the rear end face reflection through blade；Processor is connected with space wave launcher and space wave receiver, and the space wave of space wave and space wave the receiver reception sent according to space wave launcher determines the position of blade.
Description
Technical field
Radiotherapy instrument field is the utility model is related to, in particular, is related to a kind of leaf position monitoring of multi-leaf optical grating
Device, multi-leaf optical grating and therapeutic equipment.
Background technology
Three-dimensional conformal type radiotherapy and IMRT are the important means of modern precise radiotherapy, are to improve to put
Penetrate the effective measures of the treatment ratio of gains.Why 3 dimensional conformal radiation therapy and IMRT can reach accurate radiotherapy
Purpose relies primarily on multi-leaf optical grating.Therefore, for the design and use of multi-leaf optical grating, the accurate monitoring to its blade movement displacement
It is to realize accurate radiotherapy, reduces the important channel to the irradiation of patient's normal structure.
At present, the positioning of blade such as CCD camera system positions, and CCD camera system monitoring principle is to use optics
Image-forming principle, the position of blade is monitored according to the light field of formation of the visible ray after multi-leaf optical grating.Can in this method
See that light is easily disturbed by ambient light, so the reliability and accuracy of monitoring result cannot be guaranteed.
Therefore, it is necessary to propose a kind of higher and safe and reliable multi-leaf raster leaf position monitoring device of accuracy.
Utility model content
The utility model provides the higher and safe and reliable multi-leaf raster leaf position monitoring device of a kind of accuracy, more
Leaf grating and therapeutic equipment.
The purpose of this utility model is achieved through the following technical solutions：
A kind of leaf position monitoring device of multi-leaf optical grating, the blade include along the front end face on blade movement direction and
Rear end face, the front end face of the blade may pass through region for forming beam；
The leaf position detection means includes：
Space wave launcher, the space wave launcher can launch the space wave of straightline propagation, the space wave transmitting
The space wave that device is sent is radiated on the rear end face of the blade；
Space wave receiver, it is arranged in the light path for the reflection space ripple that the rear end face through the blade reflects, receives warp
The reflection space ripple of the rear end face reflection of the blade；
Processor, it is connected with the space wave launcher and the space wave receiver, and is launched according to the space wave
The space wave that the space wave and the space wave receiver that device is sent receive determines the position of blade.
Preferably, the space wave launcher and/or the space wave receiver are installed on the fixation of the multi-leaf optical grating
Opening position.
Preferably, in addition to motor, screw mandrel and motor encoder；
The both ends of the screw mandrel respectively with the blade and the motor connection, driving of the screw mandrel in the motor
Under, drive the blade movement；
The motor encoder and the motor connection, the rotation revolution by obtaining the motor determine the position of blade
Put.
Preferably, the space wave can be laser, infrared ray, ultrashort wave or ultrasonic wave.
The utility model discloses a kind of multi-leaf optical grating, including the leaf position monitoring of any described multi-leaf optical grating as described above
Device and multiple blades, and the motor of the blade is driven, it is equipped with corresponding space wave launcher, space on each blade
Ripple receiver and processor.
Preferably, the multi-leaf optical grating includes installing plate, the space wave launcher and/or space wave receiver peace
On the installing plate.
Preferably, the multi-leaf optical grating includes guide rail case, and the blade is arranged in the guide rail case, and the installing plate is consolidated
It is scheduled on the guide rail case.
Preferably, the blade includes the first blade and the second blade, and the thickness of first blade is more than described second
The thickness of blade, the motor include the first motor for driving first blade and the second electricity for driving second blade
Machine.
The utility model discloses a kind of therapeutic equipment, including any described a kind of multi-leaf optical grating as described above.
The leaf position monitoring device of multi-leaf optical grating in the utility model is included along blade movement direction due to blade
Front end face and rear end face, the front end face of blade, which is used to forming beam, may pass through region；Leaf position detection means includes：Space
Wave launcher, space wave launcher can launch the space wave of straightline propagation, and the space wave that space wave launcher is sent is radiated at
On the rear end face of blade；Space wave receiver, it is arranged in the light path for the reflection space ripple that the rear end face through blade reflects, receives
The reflection space ripple of rear end face reflection through blade；Processor, it is connected with space wave launcher and space wave receiver, and according to
The space wave that the space wave and space wave receiver that space wave launcher is sent receive determines the position of blade.Using this side
The space wave signal that formula can utilization space wave launcher is sent, the signal will be anti-after the rear end face of blade is irradiated to
It is emitted back towards, is received by space wave receiver, the signal and space wave receiver that then processor is sent according to space wave launcher
The signal characteristic poor (such as phase shift, the time difference) of reception determines the distance of the movement of blade, so that it is determined that the position of blade, measurement
Leaf position accuracy is higher and safe and reliable.
Brief description of the drawings
Fig. 1 is the schematic diagram of the multi-leaf optical grating of the utility model embodiment；
Fig. 2 is the blade schematic diagram of the utility model embodiment；
Fig. 3 is the schematic diagram of the motor mounting plate of the utility model embodiment.
Reference：
1- blades, 2- cover plates, 3- circuit boards, 5- length of blade, 6- vane noses face, 7- width of blades, 8- blade sides,
9- blade heights, 13- blades upper surface, 14- blades lower surface, 17- blade rear ends face, 11- guide rail casees, 22- fasteners, 23-
Motor, 25- laser range finders, 26- machine installing plates, 27- leads.
Embodiment
In description of the present utility model, it is to be understood that term " " center ", " transverse direction ", " on ", " under ", " left side ",
The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are based on shown in the drawings
Orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model
Limitation.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, unless otherwise indicated, the implication of " multiple "
It is two or more.In addition, term " comprising " and its any deformation, it is intended that cover non-exclusive include.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
The utility model is described in further detail with preferred embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, the leaf position monitoring device of a kind of multi-leaf optical grating, blade 1 are included along blade movement direction
On front end face 6 and rear end face 17, the front end face 6 of blade, which is used to forming beam, may pass through region；Leaf position detection means bag
Include：Space wave launcher, space wave launcher can launch the space wave of straightline propagation, the space wave that space wave launcher is sent
It is radiated on the rear end face of blade；Space wave receiver, it is arranged on the light path of the reflection space ripple of the rear end face reflection through blade
On, receive the reflection space ripple that the rear end face through blade reflects；Processor, with space wave launcher and the space wave receiver
Connection, and the space wave of space wave and space wave the receiver reception sent according to space wave launcher determines the position of blade
Put.
The space wave that can utilization space wave launcher is sent in this way, the space wave are being irradiated to blade
It will reflect back, be received by space wave receiver, the sky that then processor is sent according to space wave launcher after rear end face
Between space wave characteristic poor (such as phase shift, the time difference) that receives of ripple and space wave receiver determine blade movement distance so that
The position of blade is determined, it is higher and safe and reliable to measure leaf position accuracy.
In the present embodiment, example, space wave can be laser, infrared ray, ultrashort wave (ultrashort wave, ultra-short
Wave, also known as very high frequency(VHF) (VHF) ripple, metric wave, wave-length coverage are 1 meter to 10 meters, radio of the frequency from 30 megahertzs to 300 megahertzs
Ripple), hyperfrequency waves (frequency be more than 300 megahertzs of radio wave)) or ultrasonic wave, or other space wave signals, wherein, laser and
Infrared stability is good, and concentration degree is high, and ranging is more accurate.
Ultrasonic wave is that a kind of frequency is higher than 20000 hertz of sound wave, and when space wave is ultrasonic wave, then the utility model is wherein
A kind of mode, example, the leaf position monitoring device of multi-leaf optical grating can also be included：Ultrasonic transmitter, ultrasonic wave hair
Emitter can launch ultrasonic wave, and the ultrasonic irradiation that ultrasonic transmitter is sent is on the rear end face of blade；Ultrasonic receiver, if
Put in the light path of the reflectance ultrasound ripple of the rear end face reflection through blade；Processor, respectively with ultrasonic transmitter and described super
Acoustic receiver connects, and the ultrasonic wave that the ultrasonic wave and ultrasonic receiver sent according to ultrasonic transmitter receives determines
The position of blade.
The ultrasonic signal that can thus utilize ultrasonic transmitter to send, the signal are encountering the rear end face of blade
It will reflect back, be received by ultrasonic receiver afterwards, the signal and surpass that then processor is sent according to ultrasonic transmitter
The signal that acoustic receiver receives determines the distance of the movement of blade, so that it is determined that the position of blade, the leaf position essence of measurement
True property is higher and safe and reliable.
In the present embodiment, example, space wave launcher and/or space wave receiver are installed on the fixed bit of multi-leaf optical grating
Place is put, so as to which space wave launcher and space wave receiver be fixed.Example can be space wave launcher installed in leafy
The fixed position or space wave receiver of grating are installed on fixed position or the space of multi-leaf optical grating
Wave launcher and space wave receiver are installed on the fixed position of multi-leaf optical grating.In addition it is also possible to processor is arranged on more
The fixed position of leaf grating.Example, as shown in figure 1, the fixed position of multi-leaf optical grating can be the guide rail of multi-leaf optical grating
Case 11, or installing plate, such as motor mounting plate 26 are first-class.
In the present embodiment, example, in addition to motor, screw mandrel and motor encoder；The both ends of screw mandrel respectively with blade
And motor connection, screw mandrel drive blade movement under the driving of motor；Motor encoder and motor connection, by obtaining motor
Rotation revolution determine the position of blade.In this way, thus can utilization space ripple in this way
Or ultrasonic ranging directly measures the distance of blade movement, and the operational factor that motor encoder can obtain motor includes motor
Rotation revolution so as to learn indirectly blade movement distance, the distance and motor encoder of so above-mentioned space wave or ultrasound
The distance that device measures is combined, and forms the closed loop to blade displacement monitoring, can obtain the movement of more accurate blade away from
From so as to reach the purpose of accurate control blade, while can also entering to the real-time of blade movement, high precision and high security
Row control, realizes the closed-loop control to blade movement.
In the present embodiment, example, the distance that the distance of space wave or ultrasound and motor encoder are measured is carried out
With reference to can be processor, or single-chip microcomputer etc. has circuit board of programmable functions etc.., can be with specifically during combination
It is that the distance for measuring above two is averaged, so as to obtain the displacement of the smaller blade of error.
According to the one of example of the utility model, as shown in Figure 1 to Figure 3, a kind of multi-leaf optical grating disclosed in the present embodiment,
Leaf position monitoring device and multiple blades 1 including multi-leaf optical grating any as described above, and the motor 23 of driving blade, often
It is equipped with individual blade on corresponding space wave launcher, space wave launcher and processor, or each blade and is equipped with phase
Ultrasonic transmitter, ultrasonic transmitter and the processor answered.So as to obtain the distance of the motion of more accurate blade, reach
The purpose of accurate control blade.
In the present embodiment, example, as shown in figure 1, multi-leaf optical grating includes guide rail case 11, blade 1 is arranged on guide rail case 11
Interior, guide rail case is additionally provided with cover plate 2, and cover plate 2 can protect the blade in guide rail case, and guide rail case 11 is provided with motor mounting plate 26,
Motor 23 is arranged on motor mounting plate 26, and motor 23 can be moved by leading screw driving blade.It can thus allow motor steady
Fixed fixation, so as to which driving blade moves.Certainly, guide rail case can also be provided with other installing plates, such as installing plate of circuit etc.
Deng.Example, can be that space wave launcher is arranged on motor mounting plate or space wave receiver is installed on motor peace
Loading board or space wave launcher and space wave receiver are installed on motor mounting plate.In addition it is also possible to processor is pacified
Mounted in motor mounting plate.It is of course also possible to it is that ultrasonic transmitter is arranged on motor mounting plate or ultrasonic receiver
It is installed on motor mounting plate or ultrasonic transmitter and ultrasonic receiver is installed on motor mounting plate.In addition, also may be used
So that processor is arranged on into motor mounting plate.
In the present embodiment, as shown in Fig. 2 blade also includes blade side 8, blade upper surface 13, blade lower surface 14, leaf
Leaf length 5, width of blade 7, blade height 9.
In this implementation, illustrated so that space wave is laser as an example, example, as shown in figure 3, can be leaf position prison
Surveying device includes laser range finder 25, and laser range finder 25 is connected to miscellaneous part, such as circuit board by wire 27.Laser Measuring
Distance meter includes generating laser, laser pickoff and processor.Generating laser is used to launch laser, is radiated at the rear end of blade
Face back reflection, reflection can be reflected along incident path, i.e. straight line transmitting and reflection；Can also be that incident light and reflected light have
Certain angle, so receives reflected light by laser pickoff, preprocessor can according to transmitting laser and receive laser when
Between difference the displacement of blade is calculated with the speed of laser, and then determine leaf position.
In the present embodiment, example, as shown in Figure 1 to Figure 3, laser range finder 25 is arranged on motor mounting plate 26, when
Other positions can also be so arranged on, as long as laser can be irradiated to blade rear end face 17.The number of laser range finder 25
Amount corresponds with blade 1, is also equipped with corresponding the motor 23 set, motor encoder with blade on motor mounting plate 26
Device.So set on the motor mounting plate that can allows laser range finder to fix, so as in blade movement, laser range finder
Position is fixed, it is ensured that the accuracy of ranging.The position of laser range finder installation is it is ensured that the laser of laser range finder
The beam of transmitting is accurately impinged upon on corresponding blade, and can receive the laser beam of return, so as to carry out ranging.Simultaneously
Ensure the mounting stability of motor and motor encoder, make ranging accurate.Example, as shown in figure 3, motor mounting plate 26 passes through
Fastener 22 is arranged on guide rail case.
As shown in Figure 1 to Figure 3, because laser range finder 25 is fixed on motor mounting plate 26, and on motor mounting plate 26
It is fixed on guide rail case 11, so when blade 1 moves, laser range finder 25 is fixed, the basis of laser ranging sensor 25
Time difference between laser beam and the laser firing rate of transmitting that the blade 1 received reflects, with reference to the light velocity, it is possible to measure leaf
The distance between piece and laser range finder 25.
It is A and B respectively as shown in figure 1, the leaf optical grating construction in the present embodiment is divided into left and right two parts, A and B two
It is point just the same, in symmetric position.
With reference to shown in Fig. 3, example, blade includes the first blade and the second blade, and the thickness of the first blade is more than described
The thickness of second blade, the first blade form the both sides of two groups of guide rail casees set respectively, and the second blade forms one group and is arranged on
Centre, i.e. the one of the second blade group are arranged between two groups of the first blade, can so allow enhancing multi-leaf optical grating stability.
Motor includes the second motor of the second blade of the first motor and driving of the first blade of driving, and motor encoder includes and described the
First motor encoder of one motor connection and the second motor encoder with the second motor connection.Installed on motor mounting plate 26
There is fastener 22, motor mounting plate is fixed on guide rail case using fastener.First motor 23, the second motor 24 basis respectively
The width of blade 7 and number order (A1, A2...An) of blade 1 are in picturesque disorder to be arranged on motor mounting plate 26.First motor
23rd, the installation site of the second motor 24 and motor encoder is it is ensured that motor is moved by the effective driving blade 1 of screw mandrel.Laser
Rangefinder 25 according to the width of blade 7 and number order (A1, A2...An) of blade 1 it is in picturesque disorder be arranged on motor mounting plate
On 26.Certain motor encoder is also together to be arranged on motor on motor mounting plate, and above description is merely illustrative.
With reference to shown in Fig. 1, example, circuit board 3 is also equipped with guide rail case 11, with reference to shown in Fig. 3, laser range finder 25
Circuit board 3 is connected to by wire 27.Thus can by the circuit board of the data transfer of laser range finder to multi-leaf optical grating,
Motor encoder is also connected on circuit board, so as to the convenient control to elements such as laser range finder and motor encoders and signal
Transmission, acquisition etc..Controller is by the precise displacement amount of the blade directly measured according to laser range finder, and according to motor encoder
After the encoder values that device measures show that the precise displacement amount of blade is combined indirectly, the reliable accurate control to blade displacement is realized
System.
With reference to shown in Fig. 2, example, blade includes the rear end face towards the motor mounting plate, and laser range finder swashs
Light output end is towards the rear end face.The displacement of blade so can be more accurately obtained, so that laser range finder
Ranging is more accurate.
A kind of therapeutic equipment, including a kind of multi-leaf optical grating described above is also disclosed in the present embodiment.In this way can
The space wave signal sent with utilization space wave launcher, the signal will be reflected back after the rear end face of blade is irradiated to
Go, received by space wave receiver, the signal and space wave receiver that then processor is sent according to space wave launcher receive
Signal determine blade movement distance, so that it is determined that the position of blade, the leaf position accuracy of measurement is higher and safe
Reliably.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (10)
1. the leaf position monitoring device of a kind of multi-leaf optical grating, it is characterised in that the blade is included along blade movement direction
Front end face and rear end face, the front end face of the blade, which is used to forming beam, may pass through region；
The leaf position monitoring device includes：
Space wave launcher, the space wave launcher can launch the space wave of straightline propagation, the space wave launcher hair
The space wave gone out is radiated on the rear end face of the blade；
Space wave receiver, it is arranged in the light path for the reflection space ripple that the rear end face through the blade reflects, receives described in warp
The reflection space ripple of the rear end face reflection of blade；
Processor, it is connected with the space wave launcher and the space wave receiver, and is sent out according to the space wave launcher
The space wave that the space wave gone out and the space wave receiver receive determines the position of blade.
2. leaf position monitoring device according to claim 1, it is characterised in that the space wave launcher and/or institute
State the fixed position that space wave receiver is installed on the multi-leaf optical grating.
3. leaf position monitoring device according to claim 1, it is characterised in that also including motor, screw mandrel and motor
Encoder；
The both ends of the screw mandrel are respectively with the blade and the motor connection, and the screw mandrel is under the driving of the motor, band
Move the blade movement；
The motor encoder and the motor connection, the rotation revolution by obtaining the motor determine the position of blade.
4. leaf position monitoring device according to claim 1, it is characterised in that the space wave is laser, infrared
Line, ultrashort wave or ultrasonic wave.
5. a kind of multi-leaf optical grating, it is characterised in that include the leaf position of the multi-leaf optical grating as described in Claims 1-4 is any
Monitoring device and multiple blades, corresponding space wave launcher, space wave receiver and processor are equipped with each blade.
6. multi-leaf optical grating according to claim 5, it is characterised in that the multi-leaf optical grating includes installing plate, the space
Wave launcher and/or the space wave receiver are arranged on the installing plate.
7. multi-leaf optical grating according to claim 6, it is characterised in that the multi-leaf optical grating includes guide rail case, the blade
In the guide rail case, the installing plate is fixed on the guide rail case.
8. multi-leaf optical grating according to claim 5, it is characterised in that the blade includes the first blade and the second blade,
The thickness of first blade is more than the thickness of second blade, and the multi-leaf optical grating includes driving the of first blade
One motor and the second motor for driving second blade.
9. multi-leaf optical grating according to claim 8, it is characterised in that second blade is located in the multi-leaf optical grating
Heart position, first blade are located at the both sides of second blade.
10. a kind of therapeutic equipment, it is characterised in that including a kind of multi-leaf optical grating as described in claim 5 to 9 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720011391.6U CN207186926U (en) | 2017-01-05 | 2017-01-05 | Leaf position monitoring device, multi-leaf optical grating and the therapeutic equipment of a kind of multi-leaf optical grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720011391.6U CN207186926U (en) | 2017-01-05 | 2017-01-05 | Leaf position monitoring device, multi-leaf optical grating and the therapeutic equipment of a kind of multi-leaf optical grating |
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| CN201720011391.6U Active CN207186926U (en) | 2017-01-05 | 2017-01-05 | Leaf position monitoring device, multi-leaf optical grating and the therapeutic equipment of a kind of multi-leaf optical grating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323855A (en) * | 2018-11-09 | 2019-02-12 | 清华大学 | Based on the polynary beam limiting device mechanical test device of the radiotherapy of light curtain |
| WO2024027741A1 (en) * | 2022-08-03 | 2024-02-08 | Shanghai United Imaging Healthcare Co., Ltd. | Position detection devices of multi-leaf collimators |
| CN118259290A (en) * | 2024-03-26 | 2024-06-28 | 智维精准(北京)医疗科技有限公司 | Ultrasonic sensor detection system for multi-leaf collimator blades |
-
2017
- 2017-01-05 CN CN201720011391.6U patent/CN207186926U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323855A (en) * | 2018-11-09 | 2019-02-12 | 清华大学 | Based on the polynary beam limiting device mechanical test device of the radiotherapy of light curtain |
| WO2024027741A1 (en) * | 2022-08-03 | 2024-02-08 | Shanghai United Imaging Healthcare Co., Ltd. | Position detection devices of multi-leaf collimators |
| CN118259290A (en) * | 2024-03-26 | 2024-06-28 | 智维精准(北京)医疗科技有限公司 | Ultrasonic sensor detection system for multi-leaf collimator blades |
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Address after: 710000 Room 10301, Unit 1, Floor 3, Floor 1, Building 28, International City Business Center, No. 66, Fengcheng 12 Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: CYBERMED RADIOTHERAPY TECHNOLOGIES Co.,Ltd. Address before: 710000 Room 11720, Unit 17, Floor 1, Unit 1, Unit 1, Building 28, International City Business Center, 66 Fengcheng Road, Jingkai District, Xi'an City, Shaanxi Province Patentee before: CYBERMED RADIOTHERAPY TECHNOLOGIES Co.,Ltd. Address after: 710000 Room 11720, Unit 17, Floor 1, Unit 1, Unit 1, Building 28, International City Business Center, 66 Fengcheng Road, Jingkai District, Xi'an City, Shaanxi Province Patentee after: CYBERMED RADIOTHERAPY TECHNOLOGIES Co.,Ltd. Address before: 710000, No. 66 Fengcheng 12 road, Xi'an City, Shaanxi, 66, 28, building 1, unit 17, international business center. Patentee before: CYBERMED TECHNOLOGIES (XI'AN) Co.,Ltd. |
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Address after: 710000 Unit 1, Unit 3, Room 10301, Building 28, Pioneer International City Business Center, 66 Fengcheng 12 Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: Xi'an Dayi Group Co.,Ltd. Address before: 710000 Unit 1, Unit 3, Room 10301, Building 28, Pioneer International City Business Center, 66 Fengcheng 12 Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee before: CYBERMED RADIOTHERAPY TECHNOLOGIES Co.,Ltd. |
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