CN113842568A - Far-isolation internal-collection source blocking gas mask - Google Patents
Far-isolation internal-collection source blocking gas mask Download PDFInfo
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- CN113842568A CN113842568A CN202010630177.5A CN202010630177A CN113842568A CN 113842568 A CN113842568 A CN 113842568A CN 202010630177 A CN202010630177 A CN 202010630177A CN 113842568 A CN113842568 A CN 113842568A
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- 230000000903 blocking effect Effects 0.000 title claims description 6
- 238000002955 isolation Methods 0.000 title description 16
- 238000001914 filtration Methods 0.000 claims abstract description 30
- 241000700605 Viruses Species 0.000 claims abstract description 21
- 238000009423 ventilation Methods 0.000 claims abstract description 14
- 208000015181 infectious disease Diseases 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 claims abstract description 4
- 230000000740 bleeding effect Effects 0.000 claims abstract description 3
- 230000009545 invasion Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims abstract 2
- 239000000084 colloidal system Substances 0.000 claims description 14
- 230000036541 health Effects 0.000 claims description 3
- 238000011161 development Methods 0.000 claims 1
- 230000018109 developmental process Effects 0.000 claims 1
- 230000003612 virological effect Effects 0.000 claims 1
- 230000007123 defense Effects 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 13
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 12
- 230000002265 prevention Effects 0.000 description 4
- 208000035473 Communicable disease Diseases 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 210000002345 respiratory system Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to the field of medical equipment, in particular to a far-distance, internal-collection, source-blocking and gas mask. Comprises a mask, a ventilation pipe, a filtering device and a speed-regulating fan. One end of the ventilation pipe is communicated with the mask, and the other end of the ventilation pipe is communicated with the filtering net, so that the face of the human body is remotely isolated from the filtering net. The closing cover is connected with the filtering closing seat in a sealing way, so that viruses collected by the filtering net arranged inside the filtering closing seat are sealed inside the filtering closing seat, and the purposes of preventing contact and environmental pollution are achieved. The positive pressure is formed in the mask by inflating the speed regulation fan, so that the invasion of external gas is resisted, the safety of medical care personnel is protected, the mask is not required to be excessively sealed with the face by the positive pressure, and the wearing comfort level is improved. On the contrary, the speed regulation fan reversal change is the mode of bleeding, is the negative pressure in the face guard, makes the cluster personnel of flowing join in marriage the area, reaches the infection of healthy people's air defense, has the virus of patient exhaust to collect in worrying about closing, blocks the epidemic situation from the source, and this technique connects reasonable, has advantages such as better protection security and more function.
Description
The technical field is as follows:
the invention belongs to the field of medical equipment, and particularly relates to a far-distance, internal-collection, source-blocking and gas mask.
Background art:
the virus isolation protective measures are needed to be taken between patients and medical care personnel in the medical field for preventing mutual infection, such as wearing protective clothing, wearing masks, gloves, eyepieces and the like, especially, the requirements of outbreak infectious diseases on the protective measures are more urgent and strict, and even if the protective measures are strict, the infection conditions can not be completely avoided, so that the safety of the medical care personnel can not be completely protected, the disease control and treatment are greatly influenced, the epidemic situation is rapidly diffused, and serious consequences are caused. Therefore, it is important to improve protective equipment and meet performance requirements, and currently, protective measures adopted in the medical field are mainly protective clothing, eyepieces and masks, of which masks are the most important. Because most infectious diseases are related to a respiratory system, viruses enter the body most directly through a breathing channel, and the viruses of a patient can be discharged out of the body through the respiratory tract, so that the mask can be used as a barrier to block the viruses from entering and leaving the mask, but no matter what type of mask, the mask has a common point, namely an isolation effect, namely, healthy people block the viruses outside the mask, the patient blocks the viruses inside the mask, the mask becomes the basis of the viruses, and the viruses can be transmitted to or even diffused once the mask has a chance, so that medical care personnel are often infected. In addition, the medical staff are armed to make the mask feel stuffy, hot and uncomfortable to breathe, the mask and the skin are excessively contacted to cause some injuries in order to seal, the isolation is still unreliable, thought pressure is brought to the medical staff, and a series of negative effects are caused by the protection problem in long-time work. Particularly, the disease patients with the explosive infectious diseases cannot be effectively isolated and protected after entering the hospital, the problem cannot be solved by taking care of the patients through a mask, the main reason for the rapid spread of the virus is that virus carriers are among the moving people, and particularly the protection and isolation in dense areas are important. To sum up, the blocking of epidemic situation, isolation protection are the first importance, and protective mask measure is single, lacks comprehensive function and all-round supporting, becomes a prevention and control flat bottleneck, and the urgent needs improve.
The invention content is as follows:
in order to overcome the defects of the existing protective equipment, the invention provides a far-isolation, inner-collection, source-blocking and gas mask. The mask overcomes the defects of incomplete isolation, unreliability, uncomfortable wearing and incomplete functions of the existing protective mask, and particularly adopts the remote isolation of the face and a virus filter screen; the filter screen is arranged in the sealed part, and collected viruses are isolated from the outside; the positive pressure mode matched protective clothing is used for medical personnel to wear, so that the problems of unreliable isolation and discomfort are solved; the negative pressure mode is used for being worn by patients and mobile cluster personnel, so that infection prevention of patients is achieved, viruses of the patients are collected in a closed mode, the environment is in a purification state through gas circulation filtration, source prevention and control are achieved, and epidemic situations are blocked rapidly.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a remote, internal collection, source block, respirator comprising: the mask, the ventilation pipe, the filter box and the speed regulation fan. The mask includes: the novel face mask comprises an apron and a mask net, wherein the mask is made of transparent and air-tight flexible materials, the upper end of the mask is bent inwards to form a hook shape, the lower end of the mask is bent inwards to form an arc shape to be matched with the chin of a human body, the middle part of the mask is protruded, the mask is bilaterally symmetrical and bent inwards to the side face of the face, the edges of the left side and the right side are concave-convex shapes, the convex part is matched with the face of the human body, the concave part is a vent used for discharging air in the mask, the outsides of the left side and the right side of the mask are respectively provided with the apron made of the air-tight materials, one side of the apron is connected with the mask, the other side of the apron is matched with the face of the human body, the lower part of the mask is provided with the mask net, the function of the mask net is the same as that of the mask is provided with the mask, when the mask is inflated, one part of air is discharged through the mask net, one part of the air acts on the apron through the concave port, the apron, the opening amplitude is automatically adjusted according to the size of air flow, the air filled after filtering, the mask is in a micro-positive pressure state, the positive pressure is used for resisting the invasion of outside air, so that the mask does not need to be excessively contacted and sealed with the face.
The ventilation pipe includes: elastic colloid annular tube and vertical communicating tube. The front end of the elastic colloid annular tube is in hanging connection with the upper end of the face mask, the rear end of the elastic colloid annular tube is communicated with the upper end of the vertical communicating tube, a plurality of vent holes are formed in the lower end of the hanging connection section of the elastic colloid annular tube and the face mask, the vent holes are communicated with the inside of the face mask, and the elastic colloid annular tube is matched with the head of a human body to play roles in ventilation and positioning.
The filter cassette comprises: a filter box base, a waistband, a filter screen and a box cover. The upper end of the filter box seat is communicated with the lower end of the vertical communicating pipe, and the outer waist part is provided with a waistband which is fixed on the waist of a human body. The filter screen sets up in filtering box seat inside, and the filter screen is for sealing the cooperation with filtering box seat inner wall all around, and the filter screen area is greater than conventional gauze mask area a plurality of times, the lid is for sealing the cooperation with filtering box seat. The gas is dispersed from the box cover and passes through the filter screen, and then enters the interior of the filter box base.
The speed governing fan includes: and (4) a storage battery. The speed regulation fan is arranged in the middle of the lower end of the box cover, and an air outlet of the speed regulation fan is communicated with the inside of the box cover. The speed regulation fan turns into the mode of aerifing to a left side, is the malleation state in the face guard for medical personnel support protective clothing and wear, otherwise, the fan turns right, changes into the mode of bleeding, is the negative pressure in the face guard, and the apron is in the shutoff state all the time, and inside the person's of wearing exhalant suction filter cartridge, discharge to public environment after filtering. The air-bleed mode is used for undiagnosed patients and personnel in mobile and cluster situations. The storage battery comprises backup batteries which are arranged at the left and right sides of the outer lower end of the box cover respectively, and the backup means that the batteries can be alternately assembled and disassembled, and the backup batteries operate one by one and are disassembled for charging. Compared with the prior art, the invention has the beneficial effects that:
the invention provides a far-isolation, inner-collection, source-blocking and gas mask. The mask is adopted to collect the filtered gas, and the ventilation pipe is communicated to change the virus gathered on the mask into the virus gathered on the filter screen, so that the virus is far away from the facial organs of the human body; the filter screen is arranged and designed in the filter box, so that touch contact is avoided; the design of air flow circulation filtration by adopting the speed-regulating fan to inflate is adopted, the environment is purified, the breathing in the mask is safe at positive pressure, excessive sealing is not needed, the wearing comfort level is improved, and the problems of sultriness, sweating and the like are solved by matching with protective clothing; the reverse rotation of the speed-regulating fan is changed into an air extraction mode design, so that the health people can wear the health-care clothes to prevent infection, and patients wear the health-care clothes to collect viruses in the filter box through negative pressure, so that the health-care clothes can be worn by the patients who cannot enter a hospital, the patients who are not sure, the patients can flow, the patients can be gathered in a cluster, and the health-care clothes can be worn by the workers on the office, so that the dynamic isolation can be realized, and the propagation can be blocked at the source; the technology can be used for other dustproof and gas-defense purposes besides the medical field, and compared with the mask, the mask has the advantages of safety, practicability and suitability for popularization.
Description of the drawings:
FIG. 1 is a schematic side view of a remote isolation, internal collection, source block, respirator.
Fig. 2 is a planer view of the mask shown in fig. 1A.
FIG. 3 is a left side view of a far isolation, inner collection, source block, respirator filter cartridge concept B.
In the figure: 1 is a face mask, 2 is an apron, 3 is a cover net, 4 is a human body, 5 is a convex shape, 6 is a concave shape, 7 is an elastic colloid annular tube, 8 is a vertical communicating tube, 9 is an air vent, 10 is a filtering box seat, 11 is a waistband, 12 is a filtering net, 13 is a box cover, 14 is a speed-regulating fan, and 15 is a storage battery.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in the figure 1-3, the far-isolation, inner-collection, source-blocking and gas-defense mask comprises four parts, namely a mask, a ventilation pipe, a filter box and a speed-regulating fan.
The mask 1 comprises: apron 2, cover net 3. The upper end of the face mask 1 is inwards bent to form a hook shape, the lower end of the face mask 1 is inwards bent to form an arc shape and is matched with the 4 chin of a human body, the middle of the face mask 1 protrudes outwards, the left side and the right side of the face mask 1 are symmetrically inwards bent to form the arc shape, the edges of the left side and the right side are concave-convex shapes, the convex shapes 5 are matched with the side faces of the 4 face of the human body, the concave shapes 6 are ventilation openings, the ventilation openings are used for discharging gas in the face mask 1, the left end and the right end of the face mask 1 are respectively provided with an apron 2, one side of the apron 2 is bonded with the face mask 1, the other side of the apron is matched with the 4 face of the human body, a mask net 3 is arranged below the face mask 1, and the function of the mask net 3 is the same as that of the mask.
The ventilation pipe includes: the mask comprises an elastic colloid annular tube 7 and a vertical communicating tube 8, wherein the front end of the elastic colloid annular tube 7 is in hanging fit with the upper end of the mask 1, a plurality of vent holes 9 are formed in the lower end of the hanging section of the elastic colloid annular tube 7 and the mask 1, the vent holes 9 are communicated with the inside of the mask 1, and the upper end of the vertical communicating tube 8 is communicated with the rear end of the elastic colloid annular tube 7.
The filter cassette comprises: a filter box base 10, a waistband 11, a filter screen 12 and a box cover 13. The upper end of the filtering box base 10 is communicated with the vertical communicating pipe 8, a waistband 11 is arranged on the outer waist portion, the waistband 11 is fixed with the waist portion of the human body 4, the filtering net 12 is arranged inside the filtering box base 10, the periphery of the filtering net 12 is in sealed fit with the inner wall of the filtering box base 10, and the box cover 13 is in sealed connection with the filtering box base 10.
The speed regulation fan 14 includes: and a battery 15. The speed regulation fan 14 is arranged at the lower end of the box cover 13, and an air outlet of the speed regulation fan 14 is communicated with the inside of the box cover 13. The storage battery 15 comprises backup batteries which are respectively arranged at the left and the right of the outer lower end of the box cover 13, and the backup batteries are operated one by one and can be detachably charged.
When the air inflation type medical apron is implemented, the speed-adjusting fan rotates leftwards, generated air flow blows into the box cover and is dispersed outside the filter screen, the air flow enters the filter box seat arranged on the inner side of the filter screen after being filtered, then enters the vertical communicating pipe and the elastic colloid annular pipe upwards, and further enters the face mask through a plurality of air holes arranged on the lower portion of the front end of the elastic colloid annular pipe, after air is sucked by a wearer, a part of residual air is discharged from the face mask, a part of residual air acts on the apron through the concave opening, the opening amplitude of the apron is automatically adjusted according to the size of the air flow, the apron also has the function of adjusting the air pressure of the face mask, and the air inflation mode is used for the medical care personnel or the health personnel to wear. On the contrary, the air inflation mode can be converted into an air exhaust mode by the right rotation of the speed regulation fan, the inside of the face mask is changed from positive pressure to negative pressure, the apron automatically adjusts and seals under the action of the negative pressure according to the shape of the face, the negative pressure mode is used for personnel in the mobile cluster occasion to wear, the infection prevention of the patients is achieved, and the viruses are collected and filtered inside the filter box by the personnel with the diseases.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (4)
1. A remote, internal collection, source block, respirator, characterized by: it comprises a face mask, a ventilation pipe, a filtering combination and a speed-regulating fan. The wind power generated by the speed regulation fan arranged at the lower end of the filter screen fixed on the waist of the human body is blown into the filter screen cover, enters the filter screen seat after the filter screen in the filter screen cover is not arranged, then upwards enters the vertical communicating pipe and the elastic colloid annular pipe, and then enters the face mask through a plurality of air vents below the front end of the elastic colloid annular pipe. After the filtered gas is supplied to the personnel to inhale, the residual gas is discharged from the cover net and the concave port, and the apron automatically adjusts the opening amplitude according to the size of the gas flow.
2. A remote isolating, internal collecting, source blocking, gas mask as recited in claim 1, wherein: one end of the ventilation pipe is communicated with the mask, the other end of the ventilation pipe is communicated with the filtering net, and the face of the human body is isolated from the filtering net in a long distance. The speed regulation fan is converted into an inflation mode, positive pressure is formed in the mask to resist the invasion of outside gas, and the gas eliminates fog in the mask in the circulation process, so that the medical care personnel can be protected safely and can be worn comfortably.
3. A remote isolating, internal collecting, source blocking, gas mask as recited in claim 1, wherein: the closing cover is connected with the filtering closing seat in a sealing mode, the filtering net is sealed inside the filtering closing seat, and the filtering net is absolutely contacted with the filtering closing seat to pollute the environment reluctantly.
4. A remote isolating, internal collecting, source blocking, gas mask as recited in claim 1, wherein: the speed governing fan reversal can be by the mode change of aerifing to the mode of bleeding, change to the negative pressure by the malleation in the face guard for the cluster personnel that flow are worn and are reached the health personnel and prevent the infection, and the virus that has the patient exhaust is collected and is closed inside in the worry, from the source, in the developments, block the viral propagation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010630177.5A CN113842568A (en) | 2020-06-27 | 2020-06-27 | Far-isolation internal-collection source blocking gas mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010630177.5A CN113842568A (en) | 2020-06-27 | 2020-06-27 | Far-isolation internal-collection source blocking gas mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113842568A true CN113842568A (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010630177.5A Pending CN113842568A (en) | 2020-06-27 | 2020-06-27 | Far-isolation internal-collection source blocking gas mask |
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| Country | Link |
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| CN (1) | CN113842568A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2631246Y (en) * | 2003-05-20 | 2004-08-11 | 马伟博 | Medical protective clothing |
| CN2669905Y (en) * | 2003-12-09 | 2005-01-12 | 余红民 | Positive pressure breath dustproof and protective devices |
| CN2673362Y (en) * | 2004-01-18 | 2005-01-26 | 广州市森杨电子科技有限公司 | Positive, negative pressure dynamic gas protecting and purifying shield |
| US20060102184A1 (en) * | 2004-11-17 | 2006-05-18 | Dragerwerk Aktiengesellschaft | Breathing mask with integrated suction area |
| CN2933465Y (en) * | 2006-04-21 | 2007-08-15 | 张克东 | Positive pressure type breath dustproof and protective device |
| CN202070038U (en) * | 2011-04-18 | 2011-12-14 | 陈彤 | Lightweight micro-positive-pressure dust mask |
| CN103230651A (en) * | 2013-01-16 | 2013-08-07 | 段鳗珊 | Fresh air supplying face mask |
| JP5818191B1 (en) * | 2014-12-09 | 2015-11-18 | 哲夫 村山 | Dust proof mask |
| CN205494719U (en) * | 2016-04-09 | 2016-08-24 | 莫军 | Can freely breathe device and system of clean air |
| CN206261958U (en) * | 2016-11-24 | 2017-06-20 | 重庆市中定科技有限公司 | Back of the body formula filters antidusting and anti-poisoning mask |
| CN111195402A (en) * | 2020-02-26 | 2020-05-26 | 苏州理想眼科医院有限公司 | Positive pressure elastic protective hood |
| CN111202920A (en) * | 2020-02-18 | 2020-05-29 | 荣轩平 | Protective head cover |
| CN111227333A (en) * | 2020-04-05 | 2020-06-05 | 姚奇 | Protective clothing family |
| CN111249637A (en) * | 2020-03-18 | 2020-06-09 | 重庆陈氏清洁服务有限公司 | Human body respiration protection method and device |
| CN210696088U (en) * | 2020-04-01 | 2020-06-09 | 尹成松 | Full-closed integrated medical protective clothing for inflation and exhaust |
-
2020
- 2020-06-27 CN CN202010630177.5A patent/CN113842568A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2631246Y (en) * | 2003-05-20 | 2004-08-11 | 马伟博 | Medical protective clothing |
| CN2669905Y (en) * | 2003-12-09 | 2005-01-12 | 余红民 | Positive pressure breath dustproof and protective devices |
| CN2673362Y (en) * | 2004-01-18 | 2005-01-26 | 广州市森杨电子科技有限公司 | Positive, negative pressure dynamic gas protecting and purifying shield |
| US20060102184A1 (en) * | 2004-11-17 | 2006-05-18 | Dragerwerk Aktiengesellschaft | Breathing mask with integrated suction area |
| CN2933465Y (en) * | 2006-04-21 | 2007-08-15 | 张克东 | Positive pressure type breath dustproof and protective device |
| CN202070038U (en) * | 2011-04-18 | 2011-12-14 | 陈彤 | Lightweight micro-positive-pressure dust mask |
| CN103230651A (en) * | 2013-01-16 | 2013-08-07 | 段鳗珊 | Fresh air supplying face mask |
| JP5818191B1 (en) * | 2014-12-09 | 2015-11-18 | 哲夫 村山 | Dust proof mask |
| CN205494719U (en) * | 2016-04-09 | 2016-08-24 | 莫军 | Can freely breathe device and system of clean air |
| CN206261958U (en) * | 2016-11-24 | 2017-06-20 | 重庆市中定科技有限公司 | Back of the body formula filters antidusting and anti-poisoning mask |
| CN111202920A (en) * | 2020-02-18 | 2020-05-29 | 荣轩平 | Protective head cover |
| CN111195402A (en) * | 2020-02-26 | 2020-05-26 | 苏州理想眼科医院有限公司 | Positive pressure elastic protective hood |
| CN111249637A (en) * | 2020-03-18 | 2020-06-09 | 重庆陈氏清洁服务有限公司 | Human body respiration protection method and device |
| CN210696088U (en) * | 2020-04-01 | 2020-06-09 | 尹成松 | Full-closed integrated medical protective clothing for inflation and exhaust |
| CN111227333A (en) * | 2020-04-05 | 2020-06-05 | 姚奇 | Protective clothing family |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211228 |