CN209809260U - Infectious department purifies formula and breathes nursing device - Google Patents
Infectious department purifies formula and breathes nursing device Download PDFInfo
- Publication number
- CN209809260U CN209809260U CN201920304420.7U CN201920304420U CN209809260U CN 209809260 U CN209809260 U CN 209809260U CN 201920304420 U CN201920304420 U CN 201920304420U CN 209809260 U CN209809260 U CN 209809260U
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- sterilization bin
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- sterilizer
- air inlet
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Abstract
The utility model discloses a nursing device is breathed to infectious department's purification formula relates to the medical instrument field. The utility model comprises a breathing mask, a sterilizer and a high-pressure oxygen supply device; the breathing mask is communicated with a sterilizer, and the sterilizer comprises a primary filter cavity, an ultraviolet sterilization bin and a plasma sterilization bin; the primary filter cavity is communicated with the breathing mask, and a dust filter screen and a plurality of layers of HEPA filter screens are arranged in the primary filter cavity; the ultraviolet sterilization bin is communicated with the primary filter cavity, and an ultraviolet generator is arranged on the inner wall of the ultraviolet sterilization bin; the plasma sterilization bin is communicated with the ultraviolet sterilization bin and the breathing mask, and a plasma generator is arranged on the inner wall of the plasma sterilization bin; one output end of the high-pressure oxygen supply equipment is communicated with the plasma sterilization bin, and the other output end of the high-pressure oxygen supply equipment is communicated with the one-way air inlet. The utility model discloses a mode of breathing mask and the combination of sterilizer to and the method of multiple filtration, multistage sterilization, solved current problem that can not carry out real-time disinfection to the gas of infectious department patient's exhalation.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a purification type respiratory nursing device for an infectious department.
Background
Because of the specificity of the disease, infectious pathogens in the body are possibly transmitted to the air through breathing, coughing and other ways in the nursing links such as respiratory nursing, oxygen supply support and the like of an infectious department patient, most of the current respiratory nursing instruments only have the function of oxygen supply support, the gas exhaled by the patient cannot be well disinfected, the gas transmitted to the air is very likely to threaten the safety of other patients and medical care personnel, great inconvenience is brought to nursing work, the existing infectious department disinfection mode mainly cleans a ward with alcohol regularly, disinfects by ultraviolet rays and the like, but the non-real-time disinfection mode still cannot avoid the transmission of the pathogens generated in the two disinfection operations, and meanwhile, the medical care personnel who perform the disinfection operations are also potentially threatened.
Disclosure of Invention
An object of the utility model is to provide a nursing device is breathed to infectious department's purification formula to and HEPA filter screen, ultraviolet sterilization and plasma disinfect these more efficient methods of killing the bacterium, solved current problem that can not disinfect in real time to the gas of infectious department's patient exhalation.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model relates to a purification type respiration nursing device for infectious diseases department, which comprises a respiratory mask and a sterilizer, wherein the respiratory mask is provided with a one-way air inlet and a one-way air outlet which are respectively communicated with the sterilizer air inlet and the sterilizer air outlet through conduits, and the sterilizer comprises a primary filter chamber, an ultraviolet sterilization bin and a plasma sterilization bin;
the primary filter cavity is arranged on the inner wall of the sterilizer, and one end of the primary filter cavity is communicated with the one-way air outlet through a conduit; a dust filter screen and a plurality of layers of HEPA filter screens are sequentially arranged in the primary filter cavity in the direction vertical to the section of the conduit;
the ultraviolet sterilization bin is arranged on the inner wall of the sterilizer, and an air inlet of the ultraviolet sterilization bin is communicated with an air outlet of the primary filter cavity through a conduit; an ultraviolet generator is arranged on the inner wall of the ultraviolet sterilization bin;
the plasma sterilization bin is arranged on the inner wall of the sterilizer, an air inlet of the plasma sterilization bin is communicated with an air outlet of the ultraviolet sterilization bin through a guide pipe, and an air outlet of the plasma sterilization bin is communicated with the one-way air inlet through a guide pipe; the inner wall of the plasma sterilization bin is provided with a plasma generator;
the purification type respiratory nursing device for the infectious department further comprises a high-pressure oxygen supply device, wherein the high-pressure oxygen supply device comprises two output ends, one output end is communicated with the plasma sterilization bin through a conduit, and the other output end is communicated with the one-way air inlet through a conduit.
As a further improvement of the scheme, a second-stage pressure reducing valve is arranged in a conduit which is communicated with the one-way air inlet of the high-pressure oxygen supply equipment.
As a further improvement of the scheme, a secondary filtering cavity is communicated between the ultraviolet sterilization cabin and the plasma sterilization cabin through a conduit, and a plurality of filter screens vertical to the section of the conduit are arranged in the secondary filtering cavity.
As a further improvement of the scheme, an electromagnetic valve is arranged at an air outlet of the plasma sterilization bin.
As a further improvement of the scheme, the guide pipes are internally provided with one-way valves.
As a further improvement of the above scheme, two sides of the breathing mask are respectively connected with one end of each of two elastic bandages, and the other ends of the two elastic bandages are connected by a buckle.
As a further improvement of the scheme, the connection part of the one-way air inlet and the conduit of the plasma sterilization bin adopts a detachable structure.
As a further improvement of the scheme, the joint of the one-way air inlet and the conduit at the output end of the high-pressure oxygen supply equipment adopts a detachable structure.
As a further improvement of the scheme, the joint of the one-way air outlet and the conduit of the primary filtering cavity adopts a detachable structure.
The utility model discloses following beneficial effect has:
the utility model discloses a mode of breathing mask and the combination of sterilizer carries out real-time bactericidal treatment to the gas that contains multiple germ that every patient of infectious department exhaled, has avoided because the germ that can not disinfect in real time and lead to spreads, has also avoided medical personnel to infect the possibility of virus in the disinfection process simultaneously. The utility model discloses a combination of multiple filtration and multiple mode of disinfecting for the efficiency of disinfecting improves greatly, has still added the oxygen air current in the plasma storehouse of disinfecting and has mixxed, further optimizes bactericidal effect.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structure diagram of the internal structure of the purification type respiratory nursing device for the infectious department.
In the drawings, the components represented by the respective reference numerals are listed below:
1-breathing mask, 2-sterilizer, 3-one-way air inlet, 4-one-way air outlet, 5-primary filter chamber, 6-ultraviolet sterilization chamber, 7-plasma sterilization chamber, 8-dust filter screen, 9-HEPA filter screen, 10-
An ultraviolet generator, 11-a plasma generator, 12-a high-pressure oxygen supply device, 13-a two-stage pressure reducing valve, 14-
A secondary filter cavity, 15-an electromagnetic valve, 16-a one-way valve and 17-a binding band.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model relates to a nursing device is breathed to infectious department's purification formula, including respirator 1, sterilizer 2, one-way air inlet 3, one-way gas outlet 4, primary filter chamber 5, secondary filter chamber 14, ultraviolet sterilization storehouse 6, plasma sterilization storehouse 7, dust filter screen 8, HEPA filter screen 9, ultraviolet generator 10, plasma generator 11, high pressure oxygen supply equipment 12, second grade relief pressure valve 13, solenoid valve 15, check valve 16 and bandage 17.
Be equipped with one-way air inlet 3 and one-way gas outlet 4 on the respirator 1, one-way air inlet 3 and one-way gas outlet 4 communicate with 2 air inlets of sterilizer and sterilizer 2 gas outlets through the pipe respectively, the carrier gas that patient expired gets into sterilizer 2 through one-way gas outlet 4 of face guard and handles, and the purge gas after the processing gets into the face guard through one-way air inlet 3, supplies patient to inhale, and the continuous circulation according to this plays the gaseous effect of purification carrier. One end of an elastic bandage 17 is connected respectively to the both sides of respirator 1, and the other end of elastic bandage 17 adopts the buckle to connect, conveniently fixes respirator 1 at patient's face.
The sterilizer 2 comprises a primary filter chamber 5, a secondary filter chamber 14, an ultraviolet sterilization chamber 6 and a plasma sterilization chamber 7.
The primary filter chamber 5 is arranged on the inner wall of the sterilizer 2, one end of the primary filter chamber 5 is communicated with the one-way air outlet 4 through a conduit, and the bacteria-carrying gas exhaled by the patient firstly enters the primary filter chamber 5 for filtering after passing through the one-way air outlet 4 of the mask. The primary filter cavity 5 is internally provided with a dust filter screen 8 and a plurality of layers of HEPA filter screens 9 in sequence in the direction vertical to the cross section of the conduit. Wherein dust filter screen 8 plays coarse filtration's effect, filters large granule impurity such as dust earlier. The HEPA filter screen 9 has the effective rate of 99.998% for filtering particles of 0.1-0.3 microns, is characterized in that air can pass through but pollutants such as smoke, dust and bacteria cannot pass through, and can be made of PP filter paper, glass fiber, composite PP PET filter paper, melt-blown polyester non-woven fabric, melt-blown glass fiber and the like. The HEPA filter screen of multilayer can further improve the filtration efficiency of particulate.
The ultraviolet sterilization bin 6 is arranged on the inner wall of the sterilizer 2, the air inlet of the ultraviolet sterilization bin 6 is communicated with the air outlet of the primary filter cavity 5 through a conduit, and bacteria-carrying gas filtered by the primary filter cavity 5 enters the ultraviolet sterilization bin 6 for further ultraviolet sterilization. Install ultraviolet generator 10 on the inner wall in ultraviolet sterilization storehouse 6, the embodiment of the utility model discloses an adopt ultraviolet lamp, also can adopt other modes to produce the ultraviolet ray in other embodiments. The inner wall and the outer wall of the ultraviolet sterilization bin 6 are both made of 304L or 316L stainless steel materials, and the ultraviolet irradiance is enhanced through polishing treatment, so that the situation that the sterilization of the bacteria-carrying gas is incomplete in the sterilization process is avoided.
Plasma sterilization bin 7 is installed on the inner wall of sterilizer 2, and the air inlet of plasma sterilization bin 7 passes through the gas outlet intercommunication of pipe and ultraviolet sterilization bin 6, and the gas outlet of plasma sterilization bin 7 passes through pipe and one-way air inlet 3 intercommunication, and the preliminary purified gas through 6 sterilization processes in ultraviolet sterilization bin gets into plasma sterilization bin 7 again and carries out further sterilization purification process, and the purified gas after the processing gets into the face guard through one-way air inlet 3 and supplies the patient to inhale. The plasma generator 11 is arranged on the inner wall of the plasma sterilization bin 7, the generated bipolar plasma electrostatic field decomposes and breaks negatively charged bacteria, polarizes and adsorbs dust, the sterilization effect of the plasma is rapid and thorough, the sterilization rate of natural bacteria in the air reaches 100% in 30 minutes, and the sterilization rate of natural bacteria in the air reaches more than 99% in 40 minutes. An electromagnetic valve 15 is also arranged at the outlet of the plasma sterilization bin 7 so as to conveniently close the whole ventilation pipeline at any time.
Also can reach the purpose that further improves the filtration efficiency of particle through setting up secondary filter chamber 14, and the mode of multiple collocation combination also can be adopted in the filter screen setting in secondary filter chamber 14, if the form etc. of a plurality of layers dust filter screen 8, a plurality of layers HEPA filter screen or a plurality of layers dust filter screen 8 and a plurality of layers HEPA filter screen combination all belong to the utility model discloses a protection scope. And the installation position of the secondary filter cavity 14 can be near the back of the primary filter cavity 5, can also be between the ultraviolet sterilization bin 6 and the plasma sterilization bin 7, and can also be installed at the back of the plasma sterilization bin 7, which does not affect the realization of the utility model.
The utility model provides a nursing device is breathed to infectious department's purification formula still includes high pressure oxygen supply equipment 12, and high pressure oxygen supply equipment 12 contains two outputs, and every output all is equipped with the valve, conveniently sets up the break-make alone. One output end of the high-pressure oxygen supply equipment 12 is communicated with the plasma sterilization bin 7 through a conduit, and the other output end is communicated with the one-way air inlet 3 through a conduit. The high-pressure oxygen supply equipment 12 is communicated with the plasma sterilization bin 7 so that when the plasma sterilization bin 7 is used for further sterilization and disinfection of primary purified gas, oxygen airflow can be introduced, and therefore stirring effect is generated on the gas in the plasma sterilization bin 7, and the plasma sterilization effect is more sufficient. The high pressure oxygen supply device 12 is communicated with the one-way air inlet 3 to directly switch the oxygen supply pipeline to provide oxygen for the patient when the patient needs to relieve the illness state of the patient, wherein the secondary pressure reducing valve 13 is used for enabling the high pressure in the pipeline to reach the normal pressure for the patient to use.
A one-way valve 16 is provided on all the above-mentioned connected conduits to prevent the purified gas from being contaminated again.
The pipe connection of the one-way air inlet 3 and the plasma sterilization bin 7, the pipe connection of the one-way air inlet 3 and the output end of the high-pressure oxygen supply equipment 12, and the pipe connection of the one-way air outlet 4 and the primary filter cavity 5 can adopt detachable structures, such as thread structures, so as to facilitate the replacement of the breathing mask 1.
One specific application of this embodiment is: be equipped with one-way air inlet 3 and one-way gas outlet 4 on respirator 1, one-way air inlet 3 and the one-way gas outlet 4 of face guard communicate with 2 air inlets of sterilizer and sterilizer 2 gas outlets through the pipe respectively, the fungus-carrying gas that patient exhaled gets into sterilizer 2 through one-way gas outlet 4 and handles, the one end of an elastic bandage 17 is connected respectively to respirator 1's both sides, elastic bandage 17's the other end adopts the buckle to connect, the convenience is fixed respirator 1 at patient's face.
The bacteria-carrying gas exhaled by the patient firstly enters the primary filter chamber 5 for filtering after passing through the one-way air outlet 4. A dust filter screen 8 and a plurality of layers of HEPA filter screens 9 are sequentially arranged in the primary filter cavity 5. Wherein dust filter screen 8 plays coarse filtration's effect, filters large granule impurity such as dust earlier. The HEPA filter screen 9 mainly aims at 0.1-0.3 micron bacteria and the like for filtering, and the multi-layer HEPA filter screen 9 can further improve the filtering efficiency of particles.
The bacteria-carrying gas filtered by the primary filter chamber 5 enters an ultraviolet sterilization chamber 6 for further ultraviolet sterilization. The primary purified gas after the sterilization treatment of the ultraviolet sterilization chamber 6 enters the secondary filter chamber 14 for further filtration, and a plurality of HEPA filter screens 9 are arranged in the secondary filter chamber 14, so that the purpose of further filtering the residual bacteria is achieved. The gas purified again is led into the plasma sterilization bin 7 for further sterilization and purification treatment, wherein a plasma electrostatic field generated by the plasma generator 11 decomposes and breaks negatively charged bacteria, polarizes and adsorbs dust, and in the plasma sterilization treatment process, the high-pressure oxygen supply equipment 12 leads oxygen gas flow into the plasma sterilization bin 7, so that the gas in the plasma sterilization bin 7 is stirred, and the plasma sterilization effect is more sufficient. The treated purified gas enters the mask through the one-way inlet 3 for inhalation by the patient. When a patient needs an emergency, the plasma sterilization bin 7 can close the whole ventilation pipeline at any time by closing the electromagnetic valve 15 at the outlet, and then open a passage for supplying oxygen directly to the breathing mask 1 by the high-pressure oxygen supply equipment 12, so as to provide oxygen for the patient and relieve the illness state of the patient.
The pipe connection part of the one-way air inlet 3 and the plasma sterilization bin 7, the pipe connection part of the one-way air inlet 3 and the output end of the high-pressure oxygen supply equipment 12 and the pipe connection part of the one-way air outlet 4 and the primary filter cavity 5 all adopt a thread detachable structure so as to facilitate the replacement of the breathing mask 1.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The utility model provides an infectious department purifies formula and breathes nursing device, includes respirator (1) and sterilizer (2), be equipped with one-way air inlet (3) and one-way gas outlet (4) on respirator (1), one-way air inlet (3) and one-way gas outlet (4) respectively through the pipe with sterilizer (2) air inlet and sterilizer (2) gas outlet intercommunication, its characterized in that: the sterilizer (2) comprises a primary filter cavity (5), an ultraviolet sterilization bin (6) and a plasma sterilization bin (7);
the primary filtering cavity (5) is arranged on the inner wall of the sterilizer (2), and one end of the primary filtering cavity (5) is communicated with the one-way air outlet (4) through a conduit; a dust filter screen (8) and a plurality of layers of HEPA filter screens (9) are sequentially arranged in the primary filter cavity (5) in the direction vertical to the section of the conduit;
the ultraviolet sterilization bin (6) is arranged on the inner wall of the sterilizer (2), and an air inlet of the ultraviolet sterilization bin (6) is communicated with an air outlet of the primary filter cavity (5) through a conduit; an ultraviolet generator (10) is arranged on the inner wall of the ultraviolet sterilization bin (6);
the plasma sterilization bin (7) is arranged on the inner wall of the sterilizer (2), the air inlet of the plasma sterilization bin (7) is communicated with the air outlet of the ultraviolet sterilization bin (6) through a guide pipe, and the air outlet of the plasma sterilization bin (7) is communicated with the one-way air inlet (3) through a guide pipe; a plasma generator (11) is arranged on the inner wall of the plasma sterilization bin (7);
the purification type respiratory nursing device for the infectious department further comprises a high-pressure oxygen supply device (12), wherein the high-pressure oxygen supply device (12) comprises two output ends, one output end of the high-pressure oxygen supply device (12) is communicated with the plasma sterilization bin (7) through a conduit, and the other output end of the high-pressure oxygen supply device (12) is communicated with the one-way air inlet (3) through a conduit.
2. The purification type respiratory nursing device for infectious department according to claim 1, wherein the conduit of the high pressure oxygen supply equipment (12) communicated with the one-way air inlet (3) is internally provided with a secondary pressure reducing valve (13).
3. The purification type respiratory nursing device for infectious department according to claim 1, wherein a secondary filtering cavity (14) is further communicated between the ultraviolet sterilizing chamber (6) and the plasma sterilizing chamber (7) through a conduit, and a plurality of layers of filter screens vertical to the cross section of the conduit are arranged in the secondary filtering cavity (14).
4. The purification type respiratory nursing device for infectious department of infectious department according to claim 1, characterized in that an electromagnetic valve (15) is arranged at the air outlet of the plasma sterilization chamber (7).
5. An infectious department purified breathing care device according to claim 1, characterized in that a one-way valve (16) is arranged in each conduit.
6. The purification type respiratory nursing device for infectious department of infectious department according to claim 1, wherein one end of an elastic bandage (17) is connected to each side of the respiratory mask (1), and the two elastic bandages (17) are connected by a buckle.
7. The purification type respiratory nursing device for infectious department according to claim 1, wherein the connection position of the one-way air inlet (3) and the conduit of the plasma sterilization chamber (7) adopts a detachable structure.
8. The purification type respiration nursing device for infectious diseases of claim 1, wherein the connection between the one-way air inlet (3) and the conduit at the output end of the high pressure oxygen supply device (12) is detachable.
9. The purification type respiratory nursing device for infectious department of infectious department according to claim 1, wherein the connection part of the one-way air outlet (4) and the conduit of the primary filtering cavity (5) adopts a detachable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304420.7U CN209809260U (en) | 2019-03-11 | 2019-03-11 | Infectious department purifies formula and breathes nursing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304420.7U CN209809260U (en) | 2019-03-11 | 2019-03-11 | Infectious department purifies formula and breathes nursing device |
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| Publication Number | Publication Date |
|---|---|
| CN209809260U true CN209809260U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920304420.7U Expired - Fee Related CN209809260U (en) | 2019-03-11 | 2019-03-11 | Infectious department purifies formula and breathes nursing device |
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| CN (1) | CN209809260U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111135335A (en) * | 2020-02-26 | 2020-05-12 | 杭州鼎岳空分设备有限公司 | Medical treatment vacuum system sterilization processing apparatus |
| CN111359116A (en) * | 2020-04-02 | 2020-07-03 | 丁志国 | Hood device for biological protection |
| CN111388738A (en) * | 2020-04-08 | 2020-07-10 | 华中科技大学 | Two-way breathing purifier based on plasma |
| CN111494774A (en) * | 2020-04-14 | 2020-08-07 | 西安交通大学 | Plasma active gas humidifier |
| CN111840736A (en) * | 2020-07-15 | 2020-10-30 | 南通市第一人民医院 | Ventilation device for patient in infectious department |
| WO2021175401A1 (en) * | 2020-03-01 | 2021-09-10 | Ahmed Sherif Ahmed Moustafa Kamal | Disinfectant viral and bacterial portable mask |
| WO2021189150A1 (en) * | 2020-03-27 | 2021-09-30 | Etrace Medical Diagnostics Inc. | Wearable devices for treating air for inhalation and exhalation |
| CN113519932A (en) * | 2020-04-22 | 2021-10-22 | 武汉发明家创新科技有限公司 | Ultraviolet sterilizing mask |
| CN114887248A (en) * | 2022-04-12 | 2022-08-12 | 安徽央环增材科技有限公司 | Sterilization, disinfection and dust removal respiratory system |
-
2019
- 2019-03-11 CN CN201920304420.7U patent/CN209809260U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111135335A (en) * | 2020-02-26 | 2020-05-12 | 杭州鼎岳空分设备有限公司 | Medical treatment vacuum system sterilization processing apparatus |
| WO2021175401A1 (en) * | 2020-03-01 | 2021-09-10 | Ahmed Sherif Ahmed Moustafa Kamal | Disinfectant viral and bacterial portable mask |
| WO2021189150A1 (en) * | 2020-03-27 | 2021-09-30 | Etrace Medical Diagnostics Inc. | Wearable devices for treating air for inhalation and exhalation |
| CN115835913A (en) * | 2020-03-27 | 2023-03-21 | 斯派拉创新有限公司 | Wearable device for treating air for inhalation and exhalation |
| CN111359116A (en) * | 2020-04-02 | 2020-07-03 | 丁志国 | Hood device for biological protection |
| CN111388738A (en) * | 2020-04-08 | 2020-07-10 | 华中科技大学 | Two-way breathing purifier based on plasma |
| CN111494774A (en) * | 2020-04-14 | 2020-08-07 | 西安交通大学 | Plasma active gas humidifier |
| CN113519932A (en) * | 2020-04-22 | 2021-10-22 | 武汉发明家创新科技有限公司 | Ultraviolet sterilizing mask |
| CN111840736A (en) * | 2020-07-15 | 2020-10-30 | 南通市第一人民医院 | Ventilation device for patient in infectious department |
| CN114887248A (en) * | 2022-04-12 | 2022-08-12 | 安徽央环增材科技有限公司 | Sterilization, disinfection and dust removal respiratory system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 Termination date: 20210311 |