CN208511699U - Nasal sprayer - Google Patents
Nasal sprayer Download PDFInfo
- Publication number
- CN208511699U CN208511699U CN201820273976.XU CN201820273976U CN208511699U CN 208511699 U CN208511699 U CN 208511699U CN 201820273976 U CN201820273976 U CN 201820273976U CN 208511699 U CN208511699 U CN 208511699U
- Authority
- CN
- China
- Prior art keywords
- passage
- storage bottle
- filter core
- channel
- nasal sprayer
- 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.)
- Expired - Fee Related
Links
- 238000011010 flushing procedure Methods 0.000 claims abstract description 46
- 238000003860 storage Methods 0.000 claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 22
- 238000000889 atomisation Methods 0.000 claims description 16
- 210000003928 nasal cavity Anatomy 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 239000006210 lotion Substances 0.000 claims 1
- 238000004080 punching Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 238000005507 spraying Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 208000025938 nasal cavity disease Diseases 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 206010039083 rhinitis Diseases 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
Abstract
The utility model proposes a kind of nasal sprayers.The nasal sprayer of the utility model includes storage bottle and the spray head for being installed on the storage bottle, flushing liquor and compressed gas can be accommodated in storage bottle, spray head is equipped with ejiction opening, first passage, second channel and the orifice for being connected to first passage and second channel are formed in spray head, first passage is connected to storage bottle, and filter core is equipped in first passage, second channel is connected to ejiction opening, and atomizer is equipped in second channel.
Description
Technical field
The utility model relates to a kind of nasal sprayers.
Background technique
Currently, air pollution is more serious, larger impact is caused to the nasal cavity health of people, the problems such as rhinitis occurs
People gradually increases.In order to treat nasal cavity disease, often nasal cavity is cleaned using special nasal cavity cleaning device, wherein
Nasal sprayer is relatively conventional one kind.
Existing nasal sprayer generally comprises storage bottle and the spray head that is installed on storage bottle, can accommodate life in storage bottle
Rationality seawater and compressed gas, spray head can be equipped with ejiction opening and valve, be equipped with atomization chamber in ejiction opening, atomization chamber one end be equipped with
The orifice of storage bottle connection, the other end are connected to ejiction opening, and atomizer is additionally provided in atomization chamber.When in use, can make to spray
Mouth alignment nasal cavity simultaneously opens valve, and under the action of compressed gas, the physiological seawater in storage bottle passes through atomization chamber from ejection
Mouth sprays into nasal cavity, and is atomized during through orifice and atomizer, is formed by spraying, to be rinsed to nasal cavity.
Compression pressure in the storage bottle of existing nasal sprayer is larger, so that the ejection pressure of flushing liquor is larger,
It is easy that nasal cavity is caused to impact, causes comfort poor.If, can but directly by the pressure reduction of the compressed gas in storage bottle
Spraying droplet can be made to become larger or even become column ejection, so that flushing effect is deteriorated.
Above- mentioned information are only used for reinforcing the understanding to the background of the utility model disclosed in the background technology part, because
This it may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Utility model content
The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, and flushing effect can guaranteed by providing one kind
Under the premise of, reduce the nasal sprayer for spraying pressure.
The additional aspect and advantage of the utility model will be set forth in part in the description, and partly will be from retouching
It is apparent from stating, or the practice acquistion of the utility model can be passed through.
One aspect according to the present utility model, a kind of nasal sprayer, including storage bottle and it is installed on the storage bottle
Spray head, flushing liquor and compressed gas can be accommodated in the storage bottle, the spray head is equipped with ejiction opening, is formed in the spray head
The orifice of first passage, second channel and the connection first passage and the second channel, the first passage with it is described
Storage bottle connection, and filter core is equipped in the first passage, the second channel is connected to the ejiction opening, and described second is logical
Atomizer is equipped in road.
An embodiment according to the present utility model, the filter core include one or more layers strainer.
An embodiment according to the present utility model, the aperture of the filter core are 15 μm -20 μm.
An embodiment according to the present utility model, the material of the filter core are metal or plastics.
An embodiment according to the present utility model, the filter core are multi-layer sintering metal mesh.
An embodiment according to the present utility model, the periphery of the filter core and the inner wall interference of the first passage are matched
It closes, be clamped or be bonded.
An embodiment according to the present utility model, interior be equipped with of the second channel are located at the atomizer and the atomization
The periphery of water core between hole, the water core is formed with the water-carrying groove passed through for flushing liquor.
An embodiment according to the present utility model, the water-carrying groove are extended spirally along the central axes direction of the water core.
An embodiment according to the present utility model, the atomizer are eddy current atomization device.
An embodiment according to the present utility model, the storage bottle be equipped with diversion pipe, the spray head include pedestal and
Nozzle, the pedestal are set on the storage bottle, and the first passage is formed in the pedestal, and the diversion pipe cooperation is stretched
Enter the first passage.The nozzle is formed on the pedestal and extends to the direction far from the pedestal, and can protrude into and make
The nasal cavity of user, the second channel are formed in the nozzle, and the ejiction opening is set in the nozzle far from the pedestal
One end.
As shown from the above technical solution, the utility model has at least one of following advantages and good effect:
The flushing liquor extruded from storage bottle can pass sequentially through filter core, orifice and atomizer and be atomized, finally by spraying
Mouth sprays, so as to be rinsed to nasal cavity.
Before flushing liquor is by orifice, the pressure of flushing liquor can be reduced by the barrier effect of filter core, thus not dropping
In the case where low compression pressure, the ejection pressure of flushing liquor is reduced, reduces the impact to nasal cavity, is conducive to improve comfortable
Degree.
Filter core can also reduce the surface tension of flushing liquor, flushing liquor is broken up while reducing flushing liquor pressure, carry out
Initial atomization avoids making atomizing effect be deteriorated because of flushing liquor pressure reduction, be conducive to improve the atomizing effect of flushing liquor
Guarantee flushing effect.
Detailed description of the invention
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature and advantage of the utility model will
It becomes readily apparent from.
Fig. 1 is the schematic diagram of one embodiment of the utility model nasal sprayer.
Fig. 2 is the schematic diagram of internal structure of nasal sprayer in Fig. 1.
In figure: 1, storage bottle；11, diversion pipe；2, spray head；21, pedestal；211, first passage；212, orifice；22, it sprays
Mouth；3, filter core；4, atomizer；5, water core.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein.Although using the term of relativity, example in this specification
Relativeness of the component for another component of icon is described such as "upper", "lower", but these terms are used for this explanation
Merely for convenient in book, for example, with reference to the accompanying drawings described in exemplary direction.It is appreciated that, if the device of icon overturn
It is set to turn upside down, then the component described in "upper" will be as the component in "lower".The term of other relativities, such as
"top", "bottom" etc. also make have similar meaning.When certain structure is at other structures "upper", it is possible to refer to that certain structural integrity is formed
In in other structures, or refers to that certain structure is " direct " and be arranged in other structures, or refer to that certain structure is set by another structure " indirect "
It sets in other structures.
Term "one", " one ", "the" and " described " to indicate there are one or more elements/component part/etc.；With
Language " comprising " and " having " is to indicate the open meaning being included and refer to element/composition portion in addition to listing
Also may be present except divide/waiting other element/component part/etc.；Term " first ", " second " etc. are only used as label, no
It is the quantity limitation to its object.
A kind of nasal sprayer, as depicted in figs. 1 and 2, the utility model are provided in the utility model example embodiment
The nasal sprayer of embodiment may include storage bottle 1 and spray head 2.
In one embodiment, the shape of storage bottle 1 can be cylindric or other shapes, internal to have cavity, should
Flushing liquor and compressed gas can be accommodated in cavity, which can be physiological seawater or other liquid that can be used for nasal irrigation
Body, compressed gas can be air, nitrogen etc..Meanwhile the top of storage bottle 1 can be equipped with diversion pipe 11, diversion pipe 11 can be along storage
Expect that the central axes direction of bottle 1 extends, under the action of compressed gas, flushing liquor can be exported from diversion pipe 11.
In one embodiment, spray head 2 may include pedestal 21 and nozzle 22, in which:
Pedestal 21 can be set to the top of storage bottle 1, and cover at outside diversion pipe 11, and can be connected through a screw thread, be clamped or
Other way is connected on storage bottle 1.Meanwhile first passage 211 is formed in pedestal 21, diversion pipe 11, which can cooperate, protrudes into first
Channel 211, and can be tightly connected using interference fit or in the way of sealing ring etc. with first passage 211, to make from water conservancy diversion
The flushing liquor that pipe 11 exports can enter first passage 211.In addition, can also be equipped with an orifice 212, the orifice in pedestal 21
212 can be connected to first passage 211, and flushing liquor can pass through orifice 212 under the action of compressed gas, and orifice 212 can subtract
Small surface tension of liquid is broken up flushing liquor, to be atomized to flushing liquor, the shape and size of orifice 212 are herein
Particular determination is not done, being subject to can be such that flushing liquor is atomized, and concrete principle can refer to existing nasal sprayer or other atomizations dress
The working principle of orifice in setting, this will not be detailed here.
Nozzle 22 can be column structure, and size and shape are limited with can extend into nasal cavity.Nozzle 22 can be set to pedestal
Extend on 21 and to the direction far from pedestal 21, and nozzle 22 can be obliquely installed with respect to the central axes of pedestal 21, it is of course also possible to
It is arranged along the central axes to pedestal 21.Meanwhile nozzle 22 offers ejiction opening far from one end of pedestal 21, and can set in nozzle 22
There is second channel, second channel one end is connected to above-mentioned ejiction opening, and the other end is connected to orifice 212, so that through orifice
The flushing liquor of 212 atomizations can enter second channel.
In the other embodiment of the utility model, spray head 2 can also be other structures, however it is not limited to above-mentioned embodiment party
Spray head 2 in formula, will not enumerate herein.
In one embodiment, the nasal sprayer of the utility model can also include filter core 3, and filter core 3 can be multilayer
Sintered metal net, may include the strainer of multiple layer metal material, and the material of strainer can be the stainless of 316L or other models
Steel.The aperture of the mesh of every layer of strainer can be 15 μm -20 μm, such as 15 μm, 17 μm or 20 μm etc..Meanwhile filter core 3 can be set to the
In one channel 211, and the periphery of filter core 3 can be interference fitted with the inner wall of first passage 211, so that filter core 3 is fixed on first
In channel 211.In addition, filter core 3 is between diversion pipe 11 and orifice 212, so that into the flushing liquor in first passage 211
Second channel can be entered after through filter core 3, then through orifice 212, thus carrying out mist to flushing liquor using orifice 212
Before change, filter core 3 can be first passed through, initial atomization is carried out to flushing liquor and reduces pressure.
In the other embodiment of the utility model, the material of filter core 3 can also be other metals, such as copper；Certainly,
Filter core 3 can also be the plastics such as polypropylene, will not enumerate herein.The multistorey strainer mesh of filter core 3 can also be consolidated otherwise
It is set to an entirety, however it is not limited to above-mentioned sintering processing, for example, the multistorey strainer mesh of filter core 3 can be solid by special frame
It is fixed.Meanwhile filter core 3 can also be fixed in first passage 211 by the modes such as being clamped, being bonded.In addition, filter core 3 can also be only
Including one layer of strainer, the modes such as the edge of the strainer can be clamped or bond are fixed in first passage 211.
In one embodiment, the nasal sprayer of the utility model can also include atomizer 4, and atomizer 4 can pass through
The modes such as interference fit, clamping or bonding are fixed in second channel, and are located at the one end of nozzle 22 far from pedestal 21, so that
Flushing liquor can spray, so as to pass through mist after passing sequentially through filter core 3 and orifice 212 by atomizer 4 and from ejiction opening
Change device 4 to be further atomized flushing liquor.
Atomizer 4 can be eddy current atomization device, which can have the vortex groove passed through for flushing liquor, specific
Structure and principle can refer to existing eddy current atomization device, and this will not be detailed here.Certainly, in the other embodiment of the utility model
In, atomizer 4 can also be other types of atomising device, as long as can be installed in second channel and be atomized to flushing liquor
, will not enumerate herein.
In one embodiment, the nasal sprayer of the utility model can also include water core 5, which can be column
Structure, and can be set in second channel, and water core 5 is between orifice 212 and atomizer 4.Meanwhile the periphery shape of water core 5
At there is water-carrying groove, which can twist extend along the central axes direction of water core 5, and the inner wall of water-carrying groove and second channel can
The channel passed through for flushing liquor is formed, so that the flushing liquor into second channel can be flowed along the water-carrying groove of water core 5 to atomizer 4
It is dynamic, and exported eventually by atomizer 4 by ejiction opening.
The nasal sprayer of the utility model embodiment can also include valve, the valve can be set to spray head 2 on and with
Diversion pipe 11 connects, and by pressing the openable diversion pipe 11 of the valve, compressed gas in storage bottle 1 can be by flushing of hydraulic to the
One channel 211.In addition, the nasal sprayer of the utility model embodiment can also include other components, specifically refer to existing
There is nasal sprayer, does not enumerate further herein.
The nasal sprayer of the utility model embodiment, can by compressed gas to flushing liquor pressurize, by flushing liquor by
Diversion pipe 11 is pressed into first passage 211, after followed by filter core 3, orifice 212, water core 5 and atomizer 4, finally by spraying
Mouth sprays, hence into nasal cavity, to be rinsed to nasal cavity.
In above process, filter core 3 can carry out first order atomization to flushing liquor, and reduce the pressure of flushing liquor, then, lead to
It crosses orifice 212 and second level atomization is carried out to flushing liquor, finally, carrying out third level atomization to flushing liquor by atomizer 4 again.Due to
Before flushing liquor is by orifice 212, by the blocking of filter core 3, the pressure of flushing liquor is reduced, thus not reducing
In the case where compression pressure, the ejection pressure of ejiction opening is reduced, reduces the impact to nasal cavity, is conducive to improve comfort level.
Simultaneously as filter core 3 can reduce surface tension of liquid, flushing liquor is broken up, atomizing effect is made to be guaranteed, is avoided because of flushing liquor
Pressure reduction and so that atomizing effect is deteriorated, advantageously ensure that flushing effect.
It should be appreciated that the utility model be not limited in its application to this specification proposition component detailed construction and
Arrangement.The utility model can have other embodiments, and can realize and execute in many ways.Aforementioned change
Shape form and modification are fallen in the scope of the utility model.It should be appreciated that this reality of this disclosure and restriction
It is mentioned or all alternative groups of two or more apparent independent features with the novel text and/or drawings that extend to
It closes.All these different combinations constitute multiple alternative aspects of the utility model.Embodiment described in this specification is said
The best mode for becoming known for realizing the utility model is illustrated, and those skilled in the art will be enable practical new using this
Type.
Claims (10)
1. a kind of nasal sprayer can accommodate punching in the storage bottle including storage bottle and the spray head for being installed on the storage bottle
Washing lotion and compressed gas, the spray head are equipped with ejiction opening, which is characterized in that first passage, second logical is formed in the spray head
The orifice in road and the connection first passage and the second channel, the first passage is connected to the storage bottle, and institute
It states and is equipped with filter core in first passage, the second channel is connected to the ejiction opening, and is equipped with atomizer in the second channel.
2. nasal sprayer according to claim 1, which is characterized in that the filter core includes one or more layers strainer.
3. nasal sprayer according to claim 2, which is characterized in that the aperture of the mesh of the filter core is 15 μm of -20 μ
m。
4. nasal sprayer according to claim 2, which is characterized in that the material of the filter core is metal or plastics.
5. nasal sprayer according to claim 4, which is characterized in that the filter core is multi-layer sintering metal mesh.
6. nasal sprayer according to claim 1, which is characterized in that the periphery of the filter core and the first passage
Inner wall interference fit, clamping or bonding.
7. nasal sprayer according to claim 1-6, which is characterized in that be equipped with and be located in the second channel
The periphery of water core between the atomizer and the orifice, the water core is formed with the water-carrying groove passed through for flushing liquor.
8. nasal sprayer according to claim 7, which is characterized in that the water-carrying groove is along the central axes side of the water core
To extending spirally.
9. nasal sprayer according to claim 1-6, which is characterized in that the atomizer is eddy current atomization
Device.
10. nasal sprayer according to claim 1-6, which is characterized in that the storage bottle is equipped with water conservancy diversion
Pipe, the spray head include:
Pedestal is set on the storage bottle, and the first passage is formed in the pedestal, and the diversion pipe cooperation is protruded into described
First passage；
Nozzle is formed on the pedestal and extends to the direction far from the pedestal, and can protrude into the nasal cavity of user, described
Second channel is formed in the nozzle, and the ejiction opening is set to one end in the nozzle far from the pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820273976.XU CN208511699U (en) | 2018-02-27 | 2018-02-27 | Nasal sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820273976.XU CN208511699U (en) | 2018-02-27 | 2018-02-27 | Nasal sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208511699U true CN208511699U (en) | 2019-02-19 |
Family
ID=65326964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820273976.XU Expired - Fee Related CN208511699U (en) | 2018-02-27 | 2018-02-27 | Nasal sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208511699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115068795A (en) * | 2022-07-28 | 2022-09-20 | 纳索菲德(上海)制药技术有限公司 | Spray head for spraying liquid medicine into nose and device thereof |
| WO2024021769A1 (en) * | 2022-07-28 | 2024-02-01 | Nasal-Phyto (Sz) Pharmaceutical Technology Co., Ltd. | Spray head and device for intranasal spraying of liquid medicine |
-
2018
- 2018-02-27 CN CN201820273976.XU patent/CN208511699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115068795A (en) * | 2022-07-28 | 2022-09-20 | 纳索菲德(上海)制药技术有限公司 | Spray head for spraying liquid medicine into nose and device thereof |
| WO2024021769A1 (en) * | 2022-07-28 | 2024-02-01 | Nasal-Phyto (Sz) Pharmaceutical Technology Co., Ltd. | Spray head and device for intranasal spraying of liquid medicine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208511699U (en) | Nasal sprayer | |
| CN206443207U (en) | A kind of spray chamber and ultrasonic electronic cigarette | |
| CN206473655U (en) | Nasal spray special purpose device | |
| CN105603412A (en) | Automatic spraying system of galvanized pipe passivation liquid | |
| CN204093613U (en) | Atomization of liquid shower nozzle | |
| CN201862501U (en) | Air-sucking and bubbling mechanism for shower head | |
| CN103708091B (en) | The dual spring atomizing pump that a kind of spray effect is good | |
| CN209221210U (en) | A kind of air-pump type cosmetic spraying instrument | |
| JPS6344122Y2 (en) | ||
| CN105834016A (en) | Novel sprinkler shower nozzle | |
| CN207430560U (en) | A kind of atomizer | |
| CN207761864U (en) | A kind of detachable oil spout mouth structure | |
| CN207287828U (en) | A kind of twin fluid atomization core | |
| CN207287820U (en) | A kind of pneumatic moisturizing instrument | |
| CN207575076U (en) | It is a kind of can storage carrier soap liquid box | |
| CN105129250A (en) | Single-body universal proportional valve and spraying tank | |
| CN206153001U (en) | Arc high pressure shower head | |
| CN206836204U (en) | A kind of spray nozzle type extrudes tobacco tar | |
| CN106395120B (en) | Hair jelly sprayer | |
| CN103445466B (en) | Perfume bottle | |
| CN209788902U (en) | Multifunctional air pump type beauty appliance | |
| CN212423998U (en) | Spray type cosmetic bottle | |
| CN107472684A (en) | A kind of spray cap structure for cosmetic bottle spraying | |
| CN209138937U (en) | Atomizing pump with defencive function | |
| CN218943955U (en) | Atomizing head with silencing screening cavity |
Legal Events
| 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: 20190219 |