CN110112968A - Galvanometer control system and control method based on single-chip microcontroller control stepper motor - Google Patents
Galvanometer control system and control method based on single-chip microcontroller control stepper motor Download PDFInfo
- Publication number
- CN110112968A CN110112968A CN201910081012.4A CN201910081012A CN110112968A CN 110112968 A CN110112968 A CN 110112968A CN 201910081012 A CN201910081012 A CN 201910081012A CN 110112968 A CN110112968 A CN 110112968A
- Authority
- CN
- China
- Prior art keywords
- stepper motor
- galvanometer
- chip microcontroller
- control
- chip
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005611 electricity Effects 0.000 claims description 5
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000000819 phase cycle Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/14—Arrangements for controlling speed or speed and torque
- H02P8/18—Shaping of pulses, e.g. to reduce torque ripple
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/32—Reducing overshoot or oscillation, e.g. damping
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Stepping Motors (AREA)
- Mechanical Optical Scanning Systems (AREA)
Abstract
The present invention provides a kind of galvanometer control system and control method based on single-chip microcontroller control stepper motor, and the control system includes impulse generator, single-chip microcontroller, motor drive power supply circuit, amplifying circuit, X, Y-direction stepper motor and galvanometer.Control system of the invention, the galvanometer in former galvanometer system is substituted with stepper motor, with impulse generator and single-chip microcontroller output control drive waveform stepper motor rotation, it is compact-sized, convenient for control, and it is at low cost, while the timely inertia to brake when inhibiting galvanometer rotation can also be accomplished as driving original part using stepper motor, in order to avoid cause the coverage error and scanner distortion when scanning.
Description
Technical field
The invention belongs to galvanometer control fields, and in particular to a kind of OCT galvanometer control based on single-chip microcontroller control stepper motor
System and control method processed.
Background technique
In the galvanometer scanning system of OCT, the mentality of designing of galvanometer follows galvanometric design method, i.e. current-carrying conductor completely
The principle deflected in magnetic field by torque is enclosed, eyeglass is instead of indicator, and the signal of galvanometer throw of pointer is by computer
The direct current signal of the -5V Zhi+5V or -10V to+10V of control replace, to complete scheduled movement.In galvanometer system work, have
X, the scanning mirror coordination of Y both direction could complete the scanning to two-dimensional surface, i.e., laser beam is incident on two reflecting mirrors
On (scanning mirror), the reflection angle of reflecting mirror is controlled, the two reflecting mirrors can be respectively along X, Y axis scanning, to reach laser beam
Deflection, and control the reflection angle of reflecting mirror, need to be respectively supplied to one specific signal of driving circuit of two galvanometers
Wave, and need to control the corresponding transformation period of two waveform signals to complete the predetermined action of galvanometer.
Waveform signal is provided to galvanometer driving circuit is mostly waveform generator, and existing waveform generator product
Change, and volume is larger, is not easy to together with the OCT system integration, therefore designs galvanometer control system using single-chip microcontroller and integrate
In OCT system.
Summary of the invention
It is an object of the present invention to provide a kind of OCT galvanometer control systems and control based on single-chip microcontroller control stepper motor
Method.
In order to reach above-mentioned technical purpose, technical scheme is as follows: the OCT based on single-chip microcontroller control stepper motor
Galvanometer control system, including impulse generator, single-chip microcontroller, motor drive power supply circuit, amplifying circuit, X, Y-direction stepper motor
And galvanometer；
The impulse generator is connect with single-chip microcontroller, provides pulse signal for it；
The single-chip microcontroller is X, Y-direction stepper motor provides stairstep signal, and the stairstep signal is after amplifying circuit amplifies
Into X, Y-direction stepper motor；
The motor drive power supply circuit supplies electricity to X, Y-direction stepper motor through amplifying circuit,
The X, Y-direction stepper motor are connect with the galvanometer, drive the movement of galvanometer.
Preferably, the single-chip microcontroller uses STC89C52RC chip.
Preferably, the single-chip microcontroller is also connected with exterior I/O extended chip, and the I/O extended chip and amplifying circuit connect
It connects, in order to extend, while there is the advantages of economical and practical, advantage of lower cost, optimal performance cost performance can be obtained.
It is further preferred that the model 74HC165 of the I/O extended chip.
It preferably, further include operation button；The operation button is connected to the single-chip microcontroller, for adjusting vibration mirror scanning speed
Degree.Further, the operation button includes 4 independent keys, is started for vibration mirror scanning, and scanning stops and speed selects function
Energy.
Another aspect of the present invention additionally provides a kind of control method of OCT galvanometer, and the OCT galvanometer control system includes
Impulse generator, single-chip microcontroller, motor drive power supply circuit, amplifying circuit, X, Y-direction stepper motor and galvanometer；The controlling party
Method the following steps are included:
(1) impulse generator provides the pulse signal of specific frequency,
(2) single-chip microcontroller receives the pulse signal and counting that impulse generator generates,
(3) single-chip microcontroller issues stairstep signal according to count results, and X, Y-direction stepping are acted on after amplifying by amplifying circuit
Motor, then motor drive power supply circuit sending signal, X, Y-direction stepper motor drive galvanometer according to stairstep signal, change vibration
Field range when scarnning mirror.
The beneficial effects of the present invention are: the OCT galvanometer control system of the invention based on single-chip microcontroller control stepper motor, is used
Stepper motor substitutes the galvanometer in former galvanometer system, with impulse generator and single-chip microcontroller output control drive waveform stepper motor
Rotation, it is compact-sized, convenient for controlling, and also it is at low cost, while can also be accomplished in time using stepper motor as driving original part
Brake inhibits inertia when galvanometer rotation, in order to avoid cause the coverage error and scanner distortion when scanning.
Detailed description of the invention
Fig. 1 is the OCT galvanometer control system architecture schematic diagram of the invention that stepper motor is controlled based on single-chip microcontroller；
Fig. 2 is the pulse signal schematic diagram that impulse sender of the invention provides；
Fig. 3 is the input signal schematic diagram of X of the invention, Y-direction stepper motor.
Specific embodiment
The technical solution that the present invention will be described in detail in the following with reference to the drawings and specific embodiments.
The present invention provides a kind of OCT galvanometer control systems based on single-chip microcontroller control stepper motor, including pulse generation
Device, single-chip microcontroller, motor drive power supply circuit, amplifying circuit, X, Y-direction stepper motor and 2-D vibration mirror；Impulse generator and list
The connection of piece machine, provides pulse signal for it；Single-chip microcontroller is X, Y-direction stepper motor provides stairstep signal, and the stairstep signal passes through
Amplifying circuit is amplified into X, Y-direction stepper motor；Motor drive power supply circuit supplies electricity to X, Y-direction stepping through amplifying circuit
Motor；X, Y-direction stepper motor is connect with the galvanometer, drives the movement of galvanometer.
In OCT vibration mirror scanning control system of the invention, shift pulse signal is driven at control waveform by single-chip microcontroller
Dynamic driving motor, stairstep signal come from single-chip microcontroller pin；Two driving motors of X, Y-direction use small step-length, high-precision stepping
Motor, therefore the number of phases of motor is more；Stepper motor uses another set of drive circuitry.
Specifically, impulse generator provides the pulse signal of a specific frequency, the arteries and veins that pulse generator generates
It rushes signal and carries out step-by-step counting, the view when result counted to get can act on the step number of stepper motor and then change vibration mirror scanning
Field range.Two stepper motors, i.e. X, Y-direction stepper motor complete the scanning of a plane jointly, and two rotation centers do not exist
Approximately the same plane is divided into fast axle (X-direction) and slow axis (Y-direction), and for X, two pulse signal quantitative values, X is arranged in Y-direction altogether
X-direction completes primary line scanning when direction pulse signal quantitative value reaches preset value, then has a trigger signal for triggering Y
The stepper motor step in direction further returns to initial position with X-direction stepper motor, and pulse signal reaches preset value in the Y direction
When, entire flat scanning is completed, and Y-direction stepper motor returns to initial position.
It can be according to the OK range of scanning, to determine that stepper motor completes the X-direction stepper motor steps of primary line scanning
And Y-direction stepper motor steps.Since the point ordinary mail number of single-chip microcontroller pin output does not have the ability of direct-driving motor, pulse
Signal is only used to make tally function, therefore the definition of low and high level is carried out to stepper motor phase sequence, and the definition of low and high level embodies
In a program, single-chip microcontroller pin only exports stairstep signal.Stairstep signal is stored in single-chip microcontroller by what the phase sequence of motor determined
The low and high level signal in portion amplifies signal by amplifying circuit, and external motor drive power supply provides drive for two stepper motors
Kinetic force makes galvanometer work.
It can change the frequency of impulse generator generation pulse signal by software programming mode to change scanning speed, lead to
Often selection C language programming, readable good, convenient for improving and expanding, transplanting is easy, and is substantially shorter the programming development period.In journey
Different scanning speeds can be set in sequence；Single-chip microcontroller also external connection keyboard, different scanning speeds is selected by keyboard.
Another aspect of the present invention additionally provides a kind of control method of OCT galvanometer, and OCT galvanometer control system includes pulse
Generator, single-chip microcontroller, motor drive power supply circuit, amplifying circuit, X, Y-direction stepper motor and galvanometer；Control method include with
Lower step:
(1) impulse generator provides the pulse signal of specific frequency,
(2) single-chip microcontroller receives the pulse signal and counting that impulse generator generates,
(3) single-chip microcontroller issues stairstep signal according to count results, and X, Y-direction stepping are acted on after amplifying by amplifying circuit
Motor, then motor drive power supply circuit drives X, Y-direction stepper motor, X, Y-direction stepper motor drive according to stairstep signal
Galvanometer changes field range when vibration mirror scanning.
Embodiment 1
With reference to Fig. 1, a kind of OCT galvanometer control system based on single-chip microcontroller control stepper motor, including impulse generator 1,
Single-chip microcontroller 2, I/O extended chip 3, motor drive power supply circuit 4, amplifying circuit 5, X, Y-direction stepper motor 6, galvanometer 7 and operation
Key 8.
Single-chip microcontroller 2 uses STC89C52RC chip, and using the I/O extended chip 3 of model 74HC165 to single-chip microcontroller 2
I/O mouthfuls are extended, and by the way of transformation from serial to parallel, all chips share a power circuit.
Operation button 8 is connect with single-chip microcontroller 2, and the scanning speed of galvanometer 7 is divided into two grades, and scanning starts, and stops and speed is selected
It selects altogether using 4 independent keys, distributes the keyboard signal that 4 single-chip processor i/o mouths carry out scan operation key 8 altogether, when pressing certain
When one key, then corresponding I/O mouthfuls of the low and high level of the detection of single-chip microcontroller 2 operates impulse generator 1, is sent out by pulse
Raw device 1 starts, stops, is fast, the slow mode for issuing pulse signal changes system mode.
When being controlled using the control system of the present embodiment, control method the following steps are included:
(1) impulse generator 1 provides the pulse signal of specific frequency, and pulse signal is as shown in Figure 2；
(2) pulse signal for receiving the generation of impulse generator 1 of single-chip microcontroller 2 and counting；
(3) single-chip microcontroller 2 issues stairstep signal according to count results, and X, Y-direction step are acted on after amplifying by amplifying circuit
Into motor 6, motor drive power supply circuit 4 power supply X, Y-direction stepper motor 5, X, Y-direction stepper motor 6 drive according to stairstep signal
Dynamic galvanometer 7 changes field range when galvanometer 7 scans；Wherein X, the input signal of Y-direction stepper motor are as shown in Figure 3.
The beneficial effect that embodiment 1 provides control system is:
(1) galvanometer in former galvanometer system is substituted with stepper motor, with impulse generator and single-chip microcontroller output control wave
Shape drives stepper motor rotation, compact-sized, convenient for controlling, and also it is at low cost.
(2) single-chip processor i/o pin is usually multi-functional, and external extended capability is strong, while having economical and practical, cost phase
To lower advantage, optimal performance cost performance can be obtained.
(3) single-chip microcontroller is used, can choose and programmed using C language, readable good, transplanting is easy, convenient for improving and expanding,
The programming development period can be greatly shortened, and at low cost.
(4) it can accomplish the inertia to be braked when inhibiting galvanometer rotation in time as driving original part using stepper motor, in order to avoid
Cause the coverage error and scanner distortion when scanning.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to of the invention
Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (10)
1. the OCT galvanometer control system based on single-chip microcontroller control stepper motor, which is characterized in that including impulse generator, monolithic
Mechanical, electrical machine driving power circuit, amplifying circuit, X, Y-direction stepper motor and galvanometer；
The impulse generator is connect with single-chip microcontroller, provides pulse signal for it；
The single-chip microcontroller is X, Y-direction stepper motor provides stairstep signal, and the stairstep signal is amplified into through amplifying circuit
X, Y-direction stepper motor；
The motor drive power supply circuit supplies electricity to X, Y-direction stepper motor through amplifying circuit,
The X, Y-direction stepper motor are connect with the galvanometer, drive the movement of galvanometer.
2. the OCT galvanometer control system according to claim 1 based on single-chip microcontroller control stepper motor, which is characterized in that
The single-chip microcontroller uses STC89C52RC chip.
3. the OCT galvanometer control system according to claim 1 based on single-chip microcontroller control stepper motor, which is characterized in that
The single-chip microcontroller is also connected with exterior I/O extended chip, and the I/O extended chip is connect with amplifying circuit.
4. the OCT galvanometer control system according to claim 3 based on single-chip microcontroller control stepper motor, which is characterized in that
The model 74HC165 of the I/O extended chip.
5. the OCT galvanometer control system according to claim 1 based on single-chip microcontroller control stepper motor, which is characterized in that
It further include operation button；The operation button is connected to the single-chip microcontroller, for adjusting scan rate of vibrating mirror.
6. the OCT galvanometer control system according to claim 5 based on single-chip microcontroller control stepper motor, which is characterized in that
The operation button includes 4 independent keys.
7. a kind of control method of OCT galvanometer, which is characterized in that the OCT galvanometer control system includes impulse generator, monolithic
Mechanical, electrical machine driving power circuit, amplifying circuit, X, Y-direction stepper motor and galvanometer；The control method the following steps are included:
(1) impulse generator provides the pulse signal of specific frequency,
(2) single-chip microcontroller receives the pulse signal and counting that impulse generator generates,
(3) single-chip microcontroller issues stairstep signal according to count results, and X, Y-direction stepping electricity are acted on after amplifying by amplifying circuit
Machine, then motor drive power supply circuit supplies electricity to X, Y-direction stepper motor, and X, Y-direction stepper motor drive according to stairstep signal
Galvanometer changes field range when vibration mirror scanning.
8. the control method of OCT galvanometer according to claim 7, which is characterized in that the single-chip microcontroller uses
STC89C52RC chip.
9. the control method of OCT galvanometer according to claim 7, which is characterized in that the single-chip microcontroller is also circumscribed with I/O expansion
Chip is opened up, and the I/O extended chip is connect with amplifying circuit.
10. the control method of OCT galvanometer according to claim 9, which is characterized in that the model of the I/O extended chip
For 74HC165.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081012.4A CN110112968A (en) | 2019-01-28 | 2019-01-28 | Galvanometer control system and control method based on single-chip microcontroller control stepper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910081012.4A CN110112968A (en) | 2019-01-28 | 2019-01-28 | Galvanometer control system and control method based on single-chip microcontroller control stepper motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110112968A true CN110112968A (en) | 2019-08-09 |
Family
ID=67483702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910081012.4A Pending CN110112968A (en) | 2019-01-28 | 2019-01-28 | Galvanometer control system and control method based on single-chip microcontroller control stepper motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110112968A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739889A (en) * | 2019-08-15 | 2020-01-31 | 佛山市顺德区蚬华多媒体制品有限公司 | Driving device of electromagnetic driving micro motor |
| CN113659888A (en) * | 2021-06-29 | 2021-11-16 | 广州永士达医疗科技有限责任公司 | Driving system and method of OCT (optical coherence tomography) equipment |
| CN116047985A (en) * | 2023-03-30 | 2023-05-02 | 济南森峰激光科技股份有限公司 | Control system and definition control method for digital two-dimensional galvanometer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002277809A (en) * | 2001-03-15 | 2002-09-25 | Miyota Kk | Planar galvanomirror driving circuit |
| CN101458212A (en) * | 2009-01-04 | 2009-06-17 | 北京心润心激光医疗设备技术有限公司 | Real-time imaging optical coherent chromatography skin diagnostic device |
| CN201692540U (en) * | 2010-04-09 | 2011-01-05 | 杨骏 | Programmable laser aiming emergency evacuation device |
| CN104464483A (en) * | 2014-12-25 | 2015-03-25 | 湖北工程学院 | Two-dimensional galvanometric laser scanning teaching demonstration device and implementing method thereof |
| CN106073788A (en) * | 2016-07-19 | 2016-11-09 | 杭州捷诺飞生物科技有限公司 | In-situ three-dimensional based on OCT prints skin repair equipment and its implementation |
| CN108375346A (en) * | 2018-02-11 | 2018-08-07 | 西安知象光电科技有限公司 | A kind of multi-thread laser three-dimensional scanning method based on micro- galvanometer beam splitting type projection arrangement |
-
2019
- 2019-01-28 CN CN201910081012.4A patent/CN110112968A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002277809A (en) * | 2001-03-15 | 2002-09-25 | Miyota Kk | Planar galvanomirror driving circuit |
| CN101458212A (en) * | 2009-01-04 | 2009-06-17 | 北京心润心激光医疗设备技术有限公司 | Real-time imaging optical coherent chromatography skin diagnostic device |
| CN201692540U (en) * | 2010-04-09 | 2011-01-05 | 杨骏 | Programmable laser aiming emergency evacuation device |
| CN104464483A (en) * | 2014-12-25 | 2015-03-25 | 湖北工程学院 | Two-dimensional galvanometric laser scanning teaching demonstration device and implementing method thereof |
| CN106073788A (en) * | 2016-07-19 | 2016-11-09 | 杭州捷诺飞生物科技有限公司 | In-situ three-dimensional based on OCT prints skin repair equipment and its implementation |
| WO2018014440A1 (en) * | 2016-07-19 | 2018-01-25 | 杭州捷诺飞生物科技有限公司 | Oct-based in situ 3d printing skin repair equipment and implementation method therefor |
| CN108375346A (en) * | 2018-02-11 | 2018-08-07 | 西安知象光电科技有限公司 | A kind of multi-thread laser three-dimensional scanning method based on micro- galvanometer beam splitting type projection arrangement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739889A (en) * | 2019-08-15 | 2020-01-31 | 佛山市顺德区蚬华多媒体制品有限公司 | Driving device of electromagnetic driving micro motor |
| CN110739889B (en) * | 2019-08-15 | 2022-01-11 | 佛山市顺德区蚬华多媒体制品有限公司 | Driving device of electromagnetic driving micro motor |
| CN113659888A (en) * | 2021-06-29 | 2021-11-16 | 广州永士达医疗科技有限责任公司 | Driving system and method of OCT (optical coherence tomography) equipment |
| CN116047985A (en) * | 2023-03-30 | 2023-05-02 | 济南森峰激光科技股份有限公司 | Control system and definition control method for digital two-dimensional galvanometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110112968A (en) | Galvanometer control system and control method based on single-chip microcontroller control stepper motor | |
| CN104267670B (en) | A kind of laser marking on the fly hardware compensating method | |
| CN201783759U (en) | Optical fiber laser or disc laser dynamic focusing scanning spot trajectory processing system | |
| CN206331115U (en) | The laser radar system scanned based on MEMS micromirror | |
| CN106289098B (en) | The method of controlling rotation of three-dimensional laser scanner | |
| CN100504498C (en) | Precision tracing subsystem for laser communication tracking system | |
| CN1069403C (en) | Three-dimensional measuring apparatus and three-dimensional measuring method | |
| CN105258784B (en) | A kind of autompulse excitation Modal Parameters Identification and device | |
| CN104607638A (en) | Novel laser output device for 3D printing | |
| CN108247200A (en) | For the optical beam scanning system and beam scanning method of laser micropore processing | |
| CN103048811A (en) | Laser scanner | |
| CN202230201U (en) | Closed loop laser scanning range-finding device | |
| CN201698212U (en) | Laser energy follow-up control device and laser cutting machine | |
| CN207873390U (en) | Optical beam scanning system for laser micropore processing | |
| CN110194018A (en) | A kind of numerical control supersonic carving system | |
| CN100466402C (en) | Grating-selected quick tuning laser resonant cavity | |
| CN114415199A (en) | Single-line MEMS laser radar ranging method and system | |
| CN101241189A (en) | Two-dimensional scanning laser collision avoidance radar system | |
| CN216449730U (en) | Laser radar scanning device based on stepping motor | |
| CN210776030U (en) | Resonant scanning mirror based on photoelectric feedback | |
| CN103475334A (en) | Self-adaptive method for ultrasonic generator | |
| CN103397174B (en) | Device and method for eliminating stress by utilizing modal broadband vibration | |
| CN210323362U (en) | Miniature medium-long distance digital laser ranging device | |
| CN204143062U (en) | A kind of laser beam movement locus control system | |
| CN206003139U (en) | A kind of laser calculating instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent Manager of Guangdong Weiren Medical Technology Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |