CN112190810B - Respirator mask - Google Patents
Respirator mask Download PDFInfo
- Publication number
- CN112190810B CN112190810B CN202011107861.1A CN202011107861A CN112190810B CN 112190810 B CN112190810 B CN 112190810B CN 202011107861 A CN202011107861 A CN 202011107861A CN 112190810 B CN112190810 B CN 112190810B
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- top cover
- cover
- annular cavity
- air
- blade
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- 230000009467 reduction Effects 0.000 claims abstract description 19
- 238000007664 blowing Methods 0.000 claims abstract description 11
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000011900 installation process Methods 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002644 respiratory therapy Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 description 1
- 208000004756 Respiratory Insufficiency Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008518 non respiratory effect Effects 0.000 description 1
- 208000001797 obstructive sleep apnea Diseases 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 201000004193 respiratory failure Diseases 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
- A61M16/06—Respiratory or anaesthetic masks
-
- 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
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0683—Holding devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- 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
- A61M2205/42—Reducing noise
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A respirator mask comprises a mask body, wherein a gel connecting edge is arranged on the edge of the mask body, a first bubble group is arranged in the connecting edge, each first bubble is communicated with the bottom of the gel connecting edge, an inverted V-shaped gel pad is arranged at the upper part of the mask, a second bubble group is arranged in the gel pad, each second bubble is communicated with the bottom of the gel pad, the mask body is connected with a respirator body, a blowing device and a noise reduction cover are arranged in the respirator body, the noise reduction cover and the blowing device of the respirator are integrated, and the noise reduction cover comprises a first top cover and a second top cover; the first top cover is fixedly connected with the second top cover, a first annular cavity is formed between the first top cover and the second top cover, and a second air passing port is reserved at the lower part of the air inlet reserved at the upper parts of the first top cover and the second top cover; the invention can effectively solve the problem that the noise reduction function of the existing noise reduction cover is not obvious, and can effectively reduce the cost and simplify the installation process.
Description
Technical Field
The invention relates to a mask device, in particular to a breathing machine mask.
Background
A ventilator, which is a device having an artificial ventilation function, is widely used for treating diseases such as respiratory failure and sleep apnea hypopnea syndrome due to various causes, and occupies a very important position in the modern medical field. In the field of noninvasive ventilators, with the attention of people on respiratory therapy, the performance requirements on ventilators are higher, wherein two indexes which are easily perceived by users are radiation noise and conduction noise respectively. The two indexes directly influence whether the user can fall asleep or not, and particularly can be used as a judgment basis for judging whether the user is willing to accept noninvasive and non-respiratory therapy for a long time or not when the user just uses the device.
The noise source of the noninvasive ventilator is mainly a blowing device, and the traditional mask is difficult to fix and reduce noise.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a respirator mask, which includes a mask body, a gel connection edge is disposed at an edge of the mask body, a first bubble group is disposed in the connection edge, each first bubble is disposed with a gel pad that is communicated with a bottom of the gel connection edge, an inverted V-shaped gel pad is disposed at an upper portion of the mask, a second bubble group is disposed in the gel pad, each second bubble is communicated with a bottom of the gel pad, the mask body is connected with a respirator body, a blower device and a noise reduction cover are disposed in the respirator body, the noise reduction cover and the blower device of the respirator are integrated, and the noise reduction cover includes a first top cover and a second top cover;
the first top cover is fixedly connected with the second top cover, a first annular cavity is formed between the first top cover and the second top cover, and a second air passing port is reserved at the lower part of the air inlet reserved at the upper parts of the first top cover and the second top cover;
the first top cover and the second top cover are respectively and fixedly connected with a bottom cover of the air blowing device, a second annular cavity is formed between the first top cover and the bottom cover and between the second top cover and the bottom cover, and an air outlet is formed in the bottom cover;
the double-layer impellers comprise a connecting rod, and a top-layer impeller and a bottom-layer impeller which are fixed at two ends of the connecting rod, and first air passing ports are reserved on the top-layer impeller, the edge and the inner walls of the first top cover and the second top cover;
the connecting rod is fixed on an output shaft of the driving motor, a plurality of first blades are fixed on the top-layer impeller positioned in the first annular cavity, and a plurality of second blades are fixed on the bottom-layer impeller positioned in the second annular cavity.
As a further improvement of the above scheme:
preferably, the first annular cavity and the second annular cavity are provided with sound insulation layers on the inner walls.
Preferably, the area ratio among the air inlet, the first air passing port and the second air passing port is 1-2.
Preferably, the heights of the first and second blades are gradually reduced from the center to the edge of the double-layer impeller.
Preferably, the top impeller divides the first annular cavity into a first air chamber and a second air chamber.
Preferably, there are 7 first vanes.
Preferably, there are 3 or 5 of said second blades.
Preferably, the second blade is larger in size than the first blade.
Compared with the prior art, the invention has the following beneficial effects:
1. the bottom of the respirator mask is provided with a gel connecting edge, so that the conduction noise can be effectively reduced.
2. The gel connection edge is internally provided with a bubble group which can be conveniently adsorbed at the breathing opening after being pressed out of air.
3. The gel pad can be clamped at two ends of the nasal alar part, the mask is fixed, and the gel pad is also internally provided with a bubble group, so that the fixation is convenient.
4. The top-layer impeller is provided with a large number of first blades, the installation angle of the first blades is small, and noise generated when the top-layer impeller rotates is small;
5. the number of the second blades on the bottom-layer impeller is small, the installation angle of the second blades is large, the wind pressure and the wind volume can be effectively increased, and meanwhile, noise generated by the second blades can be blocked by the bottom cover, the bottom wall of the first top cover, the bottom wall of the second top cover and the second air chamber;
6. the noise reduction cover and the air blowing device of the respirator are integrated, the noise reduction cover does not need to be additionally arranged, the noise reduction effect can be achieved, the cost can be effectively reduced, and the process of installing the noise reduction cover is reduced, so that the assembly efficiency can be improved;
7. a first annular cavity is formed between the first top cover and the second top cover 9, air enters the first annular cavity, is accelerated for the first time through an impeller in the first annular cavity, can be subjected to pre-acceleration treatment, and can block noise generated by the second annular cavity;
8. a second annular cavity is formed between the first top cover and the bottom cover 5 and between the first top cover and the second top cover 9 and the bottom cover 5 respectively, air passing through the first annular cavity flows through the first air passing port and then enters the second annular cavity, the second annular cavity can accelerate the air for the second time, and noise generated by the secondary acceleration can be blocked by the first cavity and the bottom cover;
9. double-layer impellers are arranged in the first annular cavity and the second annular cavity, and air in the first annular cavity and the second annular cavity is accelerated at the same time;
10. the air can be accelerated through the first blade and the second blade, and the noise conducted out is reduced while enough air pressure and air quantity are obtained through setting the parameters of the first blade and the second blade;
11. the area ratio among the air inlet 3, the first top cover 1 and the second air passing port 10 is 1-2, and the area ratio can approximately effectively avoid the bottleneck effect caused by overlarge air pressure difference between the front air and the rear air or the noise caused by the collision of the air with an object, a blade and an impeller under the pressure action;
12. the top layer impeller divides the first annular cavity into a first air chamber and a second air chamber, the second air chamber is located between the top layer impeller and the bottom layer impeller and plays a transition role, the second air chamber separates the double-layer impeller, and noise generated by mutual interference and air collision when the double-layer impellers are adjacent can be avoided.
Drawings
Fig. 1 is an overall structural view of the present invention.
Fig. 2 is an exploded view of the present invention.
FIG. 3 is a sectional view of the present invention.
Fig. 4 is a front view of fig. 3.
Fig. 5 is a mask structure view.
Fig. 6 is a view showing the structure of a gel pad.
FIG. 7 is a view showing the structure of a gel-bonded side.
Reference numerals:
1 first hood, 2 gas outlets, 3 air inlets, 4 first blades, 5 bottom hoods, 6 bottom impellers, 7 top impellers, 8 second blades, 9 second hoods, 10 second air passing ports, 11 output shafts of driving motors, 12 first air passing ports, 13 gel pads, 14 gel connecting edges, 15 second air bubbles and 16 first air bubbles.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
As shown in fig. 1-7, a respirator mask comprises a mask body, a gel connecting edge 14 is arranged at the edge of the mask body, a first bubble 16 group is arranged in the connecting edge, each first bubble 16 is provided with a gel pad 13 communicated with the bottom of the gel connecting edge 14, an inverted V-shaped gel pad 13 is arranged at the upper part of the mask, a second bubble 15 group is arranged in the gel pad 13, each second bubble 15 is communicated with the bottom of the gel pad 13, the mask body is connected with a respirator body, a blowing device and a noise reduction cover are arranged in the respirator body, the noise reduction cover and the blowing device of the respirator are integrated, and the noise reduction cover comprises a first top cover and a second top cover 9;
the first top cover and the second top cover 9 are fixedly connected, a first annular cavity is formed between the first top cover and the second top cover 9, air enters the first annular cavity, is accelerated for the first time through an impeller in the first annular cavity, can be subjected to pre-acceleration treatment, and can be used for blocking noise generated by the second annular cavity, and a second air passing port 10 is reserved at the lower part of the air inlet 3 reserved at the upper parts of the first top cover and the second top cover 9;
the first top cover and the second top cover 9 are respectively and fixedly connected with a bottom cover 5 of the air blowing device, a second annular cavity is formed between the first top cover and the bottom cover 5 and between the first top cover and the second top cover 9 and the bottom cover 5 respectively, air passing through the first annular cavity flows through the first air passing port and then enters the second annular cavity, the second annular cavity can accelerate the air for the second time, noise generated by the secondary acceleration can be blocked by the first cavity and the bottom cover, and an air outlet 2 is formed in the bottom cover 5;
double-layer impellers are arranged in the first annular cavity and the second annular cavity and accelerate air in the first annular cavity and the second annular cavity, the double-layer impellers comprise a connecting rod, a top-layer impeller 7 and a bottom-layer impeller 6, the top-layer impeller 7 and the bottom-layer impeller 6 are fixed at two ends of the connecting rod, and a first air passing port 12 is reserved between the edges of the top-layer impeller 7 and the inner walls of the first top cover and the second top cover 9;
on the connecting rod was fixed in driving motor's output shaft 11, was located be fixed with a plurality of first blades 4 on the top layer impeller in the first annular cavity, was located be fixed with a plurality of second blades 8 on the bottom impeller 6 in the second annular cavity, the air can accelerate through first blade and second blade, through the setting to first blade and second blade parameter to reduce the noise that conducts out when obtaining sufficient wind pressure and the amount of wind.
First annular cavity and second annular cavity inner wall all are equipped with the puigging, and the puigging can carry out the separation to the noise.
The area ratio among the air inlet 3, the first top cover 1 and the second air passing port 10 is 1-2, and the area ratio can approximately effectively avoid the bottleneck effect caused by overlarge air pressure difference between the front air and the rear air or the noise caused by the collision of the air with an object, blades and an impeller under the pressure action.
The heights of the first blade 4 and the second blade 8 are gradually reduced from the center to the edge of the double-layer impeller.
The top layer impeller divides the first annular cavity into a first air chamber and a second air chamber, the second air chamber is located between the top layer impeller and the bottom layer impeller and plays a transition role, the second air chamber separates the double-layer impeller, and noise generated by mutual interference and air collision when the double-layer impellers are adjacent can be avoided.
The number of the first blades 4 is 7, and the noise generated by the blades can be reduced by the large number of the blades under the condition of a constant rotating speed.
The size of second blade 8 is greater than the size of first blade 4, under the same rotational speed condition, the great wind pressure and the amount of wind of producing of blade size, the less noise reduction that can of blade size, the internal less blade that sets up of first annular chamber can effectively reduce the noise that air-blast device produced, set up great blade in the second annular cavity and can guarantee great amount of wind and wind pressure, and the noise that produces carries out the separation by end cover and first annular cavity.
The working principle of the invention is as follows: the motor rotates to drive the double-layer impeller to rotate, at the moment, negative pressure is generated in the first annular cavity and the second annular cavity, outside air enters from the air inlet 3 under the action of atmospheric pressure, the air passes through the top-layer impeller and the first blades 4 to accelerate when passing through the first air chamber, the number of the first blades 4 on the top-layer impeller is large, the installation angle of the first blades 4 is small, and noise generated when the top-layer impeller rotates is small;
air process first time after accelerateing the second air chamber with second air port 10 gets into in the second annular cavity, gets into the air of second annular cavity is by bottom impeller 6 and second blade 8 accelerate once more, 8 numbers of second blade on the bottom impeller 6 are less, just 8 installation angles of second blade are great, can effectively increase wind pressure and amount of wind, and the noise that second blade 8 produced simultaneously can be by the diapire of end cover 5, first overhead guard, the diapire of second overhead guard 9 and second air chamber give the separation, are followed by the air that accelerates once more 2 discharges in the gas outlet.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the claims of the present invention should not be limited by the above-mentioned embodiments, because the modifications, equivalent variations, improvements, etc. made in the claims of the present invention still fall within the scope of the present invention.
Claims (3)
1. The utility model provides a breathing machine, includes face guard body, blast apparatus and falls the cover of making an uproar, its characterized in that: the mask comprises a mask body and is characterized in that a gel connection edge is arranged on the edge of the mask body, a first bubble group is arranged in the connection edge, each first bubble is communicated with the bottom of the gel connection edge, an inverted V-shaped gel pad is arranged at the upper part of the mask, a second bubble group is arranged in the gel pad, each second bubble is communicated with the bottom of the gel pad, the mask body is connected with a respirator body, a blowing device and a noise reduction cover are arranged in the respirator body, the noise reduction cover and the blowing device of the respirator are integrated, and the noise reduction cover comprises a first top cover and a second top cover;
the first top cover and the second top cover are fixedly connected, a first annular cavity is formed between the first top cover and the second top cover, and a second air passing port is reserved at the lower part of an air inlet reserved at the upper parts of the first top cover and the second top cover;
the first top cover and the second top cover are respectively and fixedly connected with a bottom cover of the air blowing device, a second annular cavity is formed between the first top cover and the bottom cover and between the first top cover and the bottom cover, and an air outlet is formed in the bottom cover;
the double-layer impellers comprise a connecting rod, and a top-layer impeller and a bottom-layer impeller which are fixed at two ends of the connecting rod, and first air passing ports are reserved on the top-layer impeller, the edge and the inner walls of the first top cover and the second top cover;
the connecting rod is fixed on an output shaft of the driving motor, a plurality of first blades are fixed on the top-layer impeller positioned in the first annular cavity, and a plurality of second blades are fixed on the bottom-layer impeller positioned in the second annular cavity; the heights of the first blade and the second blade are gradually reduced from the center to the edge of the double-layer impeller; the top-layer impeller divides the first annular cavity into a first air chamber and a second air chamber; 7 first blades are arranged; 3 or 5 second blades; the second blade is larger in size than the first blade.
2. The ventilator of claim 1, wherein: and the inner walls of the first annular cavity and the second annular cavity are both provided with a sound insulation layer.
3. The ventilator of claim 1, wherein: the area ratio among the air inlet, the first air passing port and the second air passing port is 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107861.1A CN112190810B (en) | 2020-10-16 | 2020-10-16 | Respirator mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107861.1A CN112190810B (en) | 2020-10-16 | 2020-10-16 | Respirator mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112190810A CN112190810A (en) | 2021-01-08 |
| CN112190810B true CN112190810B (en) | 2023-03-10 |
Family
ID=74009591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011107861.1A Active CN112190810B (en) | 2020-10-16 | 2020-10-16 | Respirator mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112190810B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205064369U (en) * | 2015-10-20 | 2016-03-02 | 陈蓓 | Domestic breathing machine, fan and impeller thereof |
| CN109453143A (en) * | 2018-12-27 | 2019-03-12 | 济南秦鲁药业科技有限公司 | Dispoable medical hydrogel eye plaster and its production system |
| CN211301641U (en) * | 2019-12-27 | 2020-08-21 | 郭月红 | Special protection pad of medical aseptic face guard |
-
2020
- 2020-10-16 CN CN202011107861.1A patent/CN112190810B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205064369U (en) * | 2015-10-20 | 2016-03-02 | 陈蓓 | Domestic breathing machine, fan and impeller thereof |
| CN109453143A (en) * | 2018-12-27 | 2019-03-12 | 济南秦鲁药业科技有限公司 | Dispoable medical hydrogel eye plaster and its production system |
| CN211301641U (en) * | 2019-12-27 | 2020-08-21 | 郭月红 | Special protection pad of medical aseptic face guard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112190810A (en) | 2021-01-08 |
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| PB01 | Publication | ||
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| 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: A respirator mask Effective date of registration: 20231205 Granted publication date: 20230310 Pledgee: China Construction Bank Corporation Shaoyang Jianshe Road Sub-branch Pledgor: HUNAN VENT MEDICAL TECHNOLOGY Co.,Ltd. Registration number: Y2023980069588 |
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