CN107362425B - Portable Oxygen generator intermittence oxygen system based on human body respiration - Google Patents
Portable Oxygen generator intermittence oxygen system based on human body respiration Download PDFInfo
- Publication number
- CN107362425B CN107362425B CN201710586752.4A CN201710586752A CN107362425B CN 107362425 B CN107362425 B CN 107362425B CN 201710586752 A CN201710586752 A CN 201710586752A CN 107362425 B CN107362425 B CN 107362425B
- Authority
- CN
- China
- Prior art keywords
- oxygen
- module
- signal
- solenoid valve
- main control
- 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.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
- A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
Landscapes
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a kind of Portable Oxygen generator intermittence oxygen system based on human body respiration, including main control unit and with the pressure sensor of main control unit communication connection, electronic timer, oxygen supply solenoid valve and buzzer siren；The present invention passes through the pressure data in acquisition oxygen face mask, judge the respiratory state of user, and then it is opened or closed by supplying oxygen solenoid valve control oxygen, intermittent oxygen supply is realized according to user's respiratory rate, and the oxygen that oxygenerator is produced is greatly saved, improves the utilization rate of oxygen, reach identical oxygen supply effect, intermittence oxygen supply oxygen demand only continuously supply oxygen 1/6, so that the volume of oxygenerator, weight and energy consumption greatly reduce, solve the bottleneck problem of Portable Oxygen generator.
Description
Technical field
The invention belongs to oxygenerator technical fields, are related to a kind of oxygenerator oxygen system, specifically a kind of to be exhaled based on human body
The Portable Oxygen generator intermittence of suction supports system.
Background technique
Oxygen is the necessary material of energy needed for generating bodily fuctions' activity, is the indispensable biological element of human body.Oxygen processed
Equipment is important medical technologies Support Equipment, is the important means for the treatment of of war wound.Oxygen processed, which equips common oxygen technique processed, mainly film
Partition method, cryogenic air separation method, chemical method and pressure swing adsorption method (PSA).Low energy consumption with it for pressure-variable adsorption legal system oxygen, it is pollution-free and
The features such as at low cost, is used widely in Portable oxygen-preparing equipment.For the volume for reducing Portable pressure swing adsorption oxygenerator
And weight, it is the important channel of oxygen supply micromation processed using advanced section oxygen method.
Summary of the invention
The purpose of the present invention is to provide a kind of Portable Oxygen generator intermittence oxygen system based on human body respiration.
The purpose of the present invention can be achieved through the following technical solutions:
Portable Oxygen generator intermittence oxygen system based on human body respiration, including main control unit and with main control list
Pressure sensor, electronic timer, oxygen supply solenoid valve and the buzzer siren of member communication connection；
The pressure sensor acquires the pressure data in oxygen face mask, and is output to main control unit；
The electronic timer provides clocking capability according to the instruction of main control unit, and chronometric data is output to master
The unit of control；
The main control unit includes Pressure Analysis module, tapping mode module, solenoid valve driving module, accident analysis mould
Block, parameter setting module and fault alarm module；
The Pressure Analysis module, the pressure data uploaded to pressure sensor is analyzed, when being negative in oxygen face mask
When pressure, pressure data is compared with pressure of inspiration(Pi) parameter threshold preset in parameter setting module, if reaching preset threshold,
Output is for oxygen signal to solenoid valve driving module and tapping mode module；If not up to preset threshold, exports stop signal and arrive
Solenoid valve driving module；When being not negative pressure in oxygen face mask, output pre-warning signal to failure analysis module；
The tapping mode module, when receiving for oxygen signal, output timing signal to electronic timer starts timing,
When the timer time reaching the preset inspiratory duration threshold value of parameter setting module, output stop signal to solenoid-driven mould
Block is simultaneously stopped timing, and the electronic timer time is reset；
The solenoid valve driving module, when receiving for oxygen signal, control oxygen supply solenoid valve is opened, and is started to supply oxygen, be received
When to stop signal, control oxygen supply solenoid valve is closed, oxygen feeding stop；
The failure analysis module, when receiving pre-warning signal, output timing signal to electronic timer starts timing,
When negative pressure occurs in oxygen face mask, stops timing, and the electronic timer time is reset, reach parameter setting when the timer time
When the preset expiratory duration threshold value of module, output fault-signal to fault alarm module；
The parameter setting module presets pressure of inspiration(Pi) parameter threshold for user according to own situation, when air-breathing
Between the parameters such as threshold value and expiratory duration threshold value；
The fault alarm module exports alarm signal to buzzer siren, continues simultaneously when receiving fault-signal
Output carries out continuing oxygen supply for oxygen signal to solenoid valve driving module；
The oxygen supply solenoid valve connects oxygenerator air accumulator and oxygen face mask, controls oxygenerator air accumulator and oxygen face mask
Between be connected or truncation；
The buzzer siren carries out buzzing alarm when receiving the alarm signal of main control unit output.
Beneficial effects of the present invention: the Portable Oxygen generator intermittence provided by the invention based on human body respiration supplies oxygen system
System judges the respiratory state of user by the pressure data in acquisition oxygen face mask, and then passes through oxygen supply solenoid valve control oxygen
It opens or closes, intermittent oxygen supply is realized according to user's respiratory rate, the oxygen that oxygenerator is produced is greatly saved, improves oxygen
The utilization rate of gas, reaches identical oxygen supply effect, the oxygen demand of intermittence oxygen supply only continuously supply oxygen 1/6, thus greatly
The volume, weight and energy consumption for reducing oxygenerator, solve the bottleneck problem of Portable Oxygen generator.
Detailed description of the invention
Present invention is further described in detail in the following with reference to the drawings and specific embodiments.
Fig. 1 is system schematic of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of Portable Oxygen generator intermittence oxygen system based on human body respiration, packet
Include main control unit and the pressure sensor communicated to connect with main control unit, electronic timer, oxygen supply solenoid valve and bee
Ring alarm, wherein pressure sensor is mounted in oxygen face mask, and oxygen supply solenoid valve is mounted on oxygenerator oxygen container and oxygen uptake face
On tracheae between cover.
Pressure sensor for acquiring the pressure data in oxygen face mask, and is output to main control unit.
Electronic timer provides clocking capability according to the instruction of main control unit, and by chronometric data be output to master control it
Unit.
Main control unit include Pressure Analysis module, tapping mode module, solenoid valve driving module, failure analysis module,
Parameter setting module and fault alarm module.
Pressure Analysis module, the pressure data uploaded to pressure sensor are analyzed, when in oxygen face mask being negative pressure,
Pressure data is compared with pressure of inspiration(Pi) parameter threshold preset in parameter setting module, if reaching preset threshold, is sentenced
Determine user and be in suction condition, exports for oxygen signal to solenoid valve driving module and tapping mode module；If not up to default threshold
Value, then export stop signal to solenoid valve driving module；When being not negative pressure in oxygen face mask, output pre-warning signal to failure point
Analyse module.
Tapping mode module, when receiving for oxygen signal, output timing signal to electronic timer starts timing, works as meter
When device time when reaching the preset inspiratory duration threshold value of parameter setting module, export stop signal to solenoid valve driving module, together
When stop timing, and the electronic timer time is reset.
Solenoid valve driving module, when receiving for oxygen signal, control oxygen supply solenoid valve is opened, and is started to supply oxygen, is received and stop
When stop signal, control oxygen supply solenoid valve is closed, oxygen feeding stop.
Failure analysis module, when receiving pre-warning signal, output timing signal to electronic timer starts timing, works as suction
When negative pressure occurs in oxygen mask, stops timing, and the electronic timer time is reset, reach parameter setting module when the timer time
When preset expiratory duration threshold value, output fault-signal to fault alarm module.
Parameter setting module presets pressure of inspiration(Pi) parameter threshold, inspiratory duration threshold for user according to own situation
The parameters such as value and expiratory duration threshold value.
Fault alarm module exports alarm signal to buzzer siren when receiving fault-signal, while lasting output
For oxygen signal to solenoid valve driving module, carry out continuing oxygen supply.
Solenoid valve is supplied oxygen, oxygenerator air accumulator and oxygen face mask are connected, is controlled between oxygenerator air accumulator and oxygen face mask
Intermittent oxygen-supply operation is realized in conducting or truncation.
Buzzer siren carries out buzzing alarm when receiving the alarm signal of main control unit output, prompts user timely
Maintenance.
Portable Oxygen generator intermittence oxygen system provided by the invention based on human body respiration, by acquiring oxygen face mask
Interior pressure data judges the respiratory state of user, and then is opened or closed by supplying oxygen solenoid valve control oxygen, according to user
Respiratory rate realizes intermittent oxygen supply, and the oxygen that oxygenerator is produced is greatly saved, improves the utilization rate of oxygen, reaches identical
Oxygen supply effect, intermittence oxygen supply oxygen demand only continuously supply oxygen 1/6, thus greatly reduce the volume of oxygenerator,
Weight and energy consumption solve the bottleneck problem of Portable Oxygen generator.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (1)
1. the Portable Oxygen generator intermittence oxygen system based on human body respiration, it is characterised in that: including main control unit and
With pressure sensor, electronic timer, oxygen supply solenoid valve and the buzzer siren of main control unit communication connection；
The pressure sensor acquires the pressure data in oxygen face mask, and is output to main control unit；The electric time-keeping
Device provides clocking capability according to the instruction of main control unit, and by timing
Data are output to main control unit；
The main control unit include Pressure Analysis module, tapping mode module, solenoid valve driving module, failure analysis module,
Parameter setting module and fault alarm module；
The Pressure Analysis module, the pressure data uploaded to pressure sensor are analyzed, when in oxygen face mask being negative pressure,
Pressure data is compared with pressure of inspiration(Pi) parameter threshold preset in parameter setting module, if reaching preset threshold, output
For oxygen signal to solenoid valve driving module and tapping mode module；If not up to preset threshold, stop signal is exported to electromagnetism
Valve drive module；When being not negative pressure in oxygen face mask, output pre-warning signal to failure analysis module；
The tapping mode module, when receiving for oxygen signal, output timing signal to electronic timer starts timing, works as meter
When device time when reaching the preset inspiratory duration threshold value of parameter setting module, export stop signal to solenoid valve driving module, together
When stop timing, and the electronic timer time is reset；
The solenoid valve driving module, when receiving for oxygen signal, control oxygen supply solenoid valve is opened, and is started to supply oxygen, is received and stop
When stop signal, control oxygen supply solenoid valve is closed, oxygen feeding stop；
The failure analysis module, when receiving pre-warning signal, output timing signal to electronic timer starts timing, works as suction
When negative pressure occurs in oxygen mask, stops timing, and the electronic timer time is reset, reach parameter setting mould when the timer time
When the preset expiratory duration threshold value of block, output fault-signal to fault alarm module；
The parameter setting module presets pressure of inspiration(Pi) parameter threshold, inspiratory duration threshold for user according to own situation
Value and expiratory duration threshold parameter；
The fault alarm module exports alarm signal to buzzer siren when receiving fault-signal, while lasting output
For oxygen signal to solenoid valve driving module, carry out continuing oxygen supply；
The oxygen supply solenoid valve connects oxygenerator air accumulator and oxygen face mask, controls between oxygenerator air accumulator and oxygen face mask
Conducting or truncation；
The buzzer siren carries out buzzing alarm when receiving the alarm signal of main control unit output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586752.4A CN107362425B (en) | 2017-07-18 | 2017-07-18 | Portable Oxygen generator intermittence oxygen system based on human body respiration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586752.4A CN107362425B (en) | 2017-07-18 | 2017-07-18 | Portable Oxygen generator intermittence oxygen system based on human body respiration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107362425A CN107362425A (en) | 2017-11-21 |
| CN107362425B true CN107362425B (en) | 2019-11-26 |
Family
ID=60306879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710586752.4A Active CN107362425B (en) | 2017-07-18 | 2017-07-18 | Portable Oxygen generator intermittence oxygen system based on human body respiration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107362425B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534295B (en) * | 2018-12-27 | 2024-04-26 | 贵安新区华旭科技开发有限公司 | Oxygen production control method and control circuit of portable oxygen generator |
| CN113195024B (en) * | 2018-12-29 | 2024-04-05 | 青岛精安医疗科技有限责任公司 | Oxygen generation system and method |
| CN110937578A (en) * | 2019-12-09 | 2020-03-31 | 无锡赫尔德克精密机械有限公司 | Breath type portable oxygen generator and control method thereof |
| CN114073801A (en) * | 2020-08-17 | 2022-02-22 | 南京古都网络科技有限公司 | Pulse respiration synchronous oxygen supply system |
| CN111921050A (en) * | 2020-08-19 | 2020-11-13 | 华氧医疗科技(大连)有限公司 | Method for controlling oxygen delivery |
| CN112546388B (en) * | 2020-12-04 | 2023-03-14 | 可孚医疗科技股份有限公司 | Self-adaptive pulse type oxygen generator and oxygen supply control method and device thereof |
| CN112675391A (en) * | 2020-12-17 | 2021-04-20 | 四川省至圣贝尔医疗器械有限公司 | Self-adaptive oxygen inhalation device |
| CN114225251B (en) * | 2021-12-17 | 2022-08-09 | 中国科学院合肥物质科学研究院 | Oxygen suppliment control system based on IMU |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201481942U (en) * | 2009-08-26 | 2010-05-26 | 纪成尧 | Respiration synchronous controller |
| CN103547308A (en) * | 2011-05-13 | 2014-01-29 | 皇家飞利浦有限公司 | Sensor and valve integrated into a patient interface |
| CN203417382U (en) * | 2013-07-29 | 2014-02-05 | 林刚 | Pulse oxygen supply device for minitype medical oxygen generating device |
| CN203469165U (en) * | 2013-08-21 | 2014-03-12 | 江苏富林医疗设备有限公司 | Respirator |
| CN105477753A (en) * | 2014-09-15 | 2016-04-13 | 台达电子工业股份有限公司 | Exhaust control method and breathing auxiliary apparatus applying same |
| CN105771049A (en) * | 2016-05-25 | 2016-07-20 | 戴如春 | Automatic respirator |
| US9399109B2 (en) * | 2012-03-02 | 2016-07-26 | Breathe Technologies, Inc. | Continuous positive airway pressure (CPAP) therapy using measurements of speed and pressure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8020555B2 (en) * | 2003-06-18 | 2011-09-20 | New York University | System and method for improved treatment of sleeping disorders using therapeutic positive airway pressure |
| CN101543655A (en) * | 2009-04-29 | 2009-09-30 | 江苏万泰科技股份有限公司 | Method for detecting breathing state during pulse oxygen supply |
| CN105664319A (en) * | 2016-03-18 | 2016-06-15 | 沈阳迈思医疗科技有限公司 | Control method and control device of oxygen production and assisted respiration integration |
-
2017
- 2017-07-18 CN CN201710586752.4A patent/CN107362425B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201481942U (en) * | 2009-08-26 | 2010-05-26 | 纪成尧 | Respiration synchronous controller |
| CN103547308A (en) * | 2011-05-13 | 2014-01-29 | 皇家飞利浦有限公司 | Sensor and valve integrated into a patient interface |
| US9399109B2 (en) * | 2012-03-02 | 2016-07-26 | Breathe Technologies, Inc. | Continuous positive airway pressure (CPAP) therapy using measurements of speed and pressure |
| CN203417382U (en) * | 2013-07-29 | 2014-02-05 | 林刚 | Pulse oxygen supply device for minitype medical oxygen generating device |
| CN203469165U (en) * | 2013-08-21 | 2014-03-12 | 江苏富林医疗设备有限公司 | Respirator |
| CN105477753A (en) * | 2014-09-15 | 2016-04-13 | 台达电子工业股份有限公司 | Exhaust control method and breathing auxiliary apparatus applying same |
| CN105771049A (en) * | 2016-05-25 | 2016-07-20 | 戴如春 | Automatic respirator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107362425A (en) | 2017-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107362425B (en) | Portable Oxygen generator intermittence oxygen system based on human body respiration | |
| RU2719992C1 (en) | Systems and methods of producing nitrogen oxide in outpatient conditions | |
| CN102202618B (en) | Apparatus and methods for controlling tissue oxygenation for wound healing and promoting tissue viability | |
| CN202387074U (en) | Portable respirator | |
| CN106806999B (en) | For alleviating the electronic control circuit and oxygen supply equipment of altitude sickness | |
| CN106512158B (en) | Intelligent atomization drug delivery system based on breathing circuit | |
| CN101437564A (en) | Hardware configuration for pressure driver | |
| CN216366217U (en) | Oxygen generator | |
| CN206852879U (en) | A kind of impulsive compressional oxygen oxygen supply | |
| CN111821551A (en) | Oxygen supply controller and oxygen supply system comprising same | |
| CN112316264B (en) | Wall breathing oxygen automatic device for hospital | |
| DE102011018671B4 (en) | Mobile ventilator | |
| CN104368095A (en) | Air conditioning machine | |
| CN110384850B (en) | Portable auxiliary breathing device | |
| CN204951872U (en) | Medical breathing machine of intelligence | |
| CN207799482U (en) | SCM Based apparatus of oxygen supply | |
| CN113877036A (en) | Oxygen generator and respiratory therapy method | |
| CN214860316U (en) | Oxygen therapy pipeline and oxygen system | |
| CN204352393U (en) | Air regulation machine | |
| CN209809233U (en) | Breathing machine with exhaust treatment device | |
| CN209075284U (en) | A kind of plateau health care cabin | |
| CN105582603A (en) | Gas flow pressure sensor-based medical oxygen uptake device | |
| CN206687987U (en) | Intelligent apparatus of oxygen supply | |
| CN212235673U (en) | Integral type oxygen suppliment equipment | |
| CN213131658U (en) | Oxygen supply equipment capable of automatically converting oxygen supply mode |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Intermittent oxygen supply system of portable oxygen generator based on human respiration Effective date of registration: 20211209 Granted publication date: 20191126 Pledgee: Hefei state control construction finance Company limited by guarantee Pledgor: HEFEI KANGJUREN INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2021980014440 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221024 Granted publication date: 20191126 Pledgee: Hefei state control construction finance Company limited by guarantee Pledgor: HEFEI KANGJUREN INTELLIGENT TECHNOLOGY Co.,Ltd. Registration number: Y2021980014440 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: 3 / F, building 4, No. 33, Qiuju Road, Baiyan Science Park, Hefei hi tech Zone, Anhui 230000 Patentee after: Hefei Kangjuren Medical Device Technology Co.,Ltd. Address before: 230000 room 803, block C, Xiangfeng Creative Park, 211 Xiangzhang Avenue, high tech Zone, Hefei, Anhui Province Patentee before: HEFEI KANGJUREN INTELLIGENT TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |