CN111494831B - Air filtering artificial nose - Google Patents
Air filtering artificial nose Download PDFInfo
- Publication number
- CN111494831B CN111494831B CN202010430917.0A CN202010430917A CN111494831B CN 111494831 B CN111494831 B CN 111494831B CN 202010430917 A CN202010430917 A CN 202010430917A CN 111494831 B CN111494831 B CN 111494831B
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- China
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- filter element
- sealing shell
- supporting plates
- plate
- heat exchange
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/06—Nose filters
Abstract
The invention discloses a novel high-efficiency air filtering artificial nose, and belongs to the technical field of medical and health biological protection. A wet heat exchange filter element is arranged in the sealed shell; a socket is arranged at the opposite position of the side surface of the sealing shell and the wet heat exchange filter element, and the wet heat exchange filter element is inserted into the sealing shell from the socket; a bottom plate and a top plate are fixed in the sealing shell, bottom supporting plates are fixed on the bottom plate and uniformly arranged, and top supporting plates are fixed on the top plate; a folding filter element is arranged between the bottom supporting plate and the top supporting plate, and the bottom supporting plate and the top supporting plate are inserted in the bending of the folding filter element in a staggered way. The folding filter element adopts the PTEF microporous membrane, so that the mechanical filtration of virus and other pollution particles can be realized for a long time, the surface area of the filter membrane is enlarged due to the design of the folded angle, and the airflow resistance is greatly reduced; by adopting the staggered stay plates to provide support for the folding filter element, the service life of the folding filter element is prolonged, and the folding filter element can be used for a long time even under the condition of active humidification and ventilation.
Description
Technical Field
The invention relates to the technical field of medical and health biological protection, in particular to an air filtering artificial nose for humidifying and filtering a mechanical ventilation pipeline.
Background
Artificial nose is an important tool for isolating viral pneumonia patients from transmitting viruses outwards through respiratory pipelines. The main stream artificial nose in the current market uses polypropylene melt-blown non-woven fabrics as core filter materials, the pore diameter of the material is large, virus particles are basically adsorbed by static electricity, and the material is arranged in a tiling mode, so that the area of a filter membrane is small, and the air flow resistance is large. Because the humidification of the air to the mucous membrane during the mechanical ventilation of critically ill patients is very important for the discharge of secretions, the passive humidification of the artificial nose has limited effect and often requires the use of an active antipyretic humidifier. Under the condition that nearly saturated humidity air flows through the polypropylene melt-blown non-woven fabric filter screen, the condensate water can easily attenuate the static quantity of the filter screen, and the original protection effect is difficult to achieve. This disadvantage results in the need for frequent replacement of the artificial nose by medical personnel (4-6 hours in the case of active humidification, 1 day of replacement for passive humidification), but each replacement of the artificial nose is equivalent to one time opening the respiratory tract of the infected person, increasing the risk of viral dispersion into the air.
Disclosure of Invention
In order to solve the technical problems, the invention provides a novel high-efficiency air filtering artificial nose which is high-efficiency and durable in filtering and free from fear of humidification, and is used for dealing with epidemic prevention of high-infectivity viruses which are rapidly transmitted through respiratory tracts.
The invention is realized by the following technical scheme: an air filtering artificial nose comprises a sealing shell, wherein two ends of the sealing shell are respectively connected with a distal end interface and a proximal end interface, and one side of the distal end interface is connected with a sampling hole and a blocking nut; a wet heat exchange filter element is arranged at one side, close to the proximal end interface, in the sealing shell; a socket is arranged at the opposite position of the side surface of the sealing shell and the wet heat exchange filter element, and the wet heat exchange filter element is inserted into the sealing shell from the socket; a cover plate is hinged to the outer side of the socket; the inner side surface of the cover plate is provided with a trapezoid rubber block matched with the socket; the trapezoid rubber block is inserted into the socket in a matched mode, and the joint of the periphery of the trapezoid rubber block and the socket is an inclined plane; a bottom plate is fixed on one side, close to the far-end interface, of the sealing shell, a bottom supporting plate is fixed on the bottom plate, and uniformly distributed through holes are formed in the bottom plate and the bottom supporting plate; a top plate is arranged on one side, close to the wet heat exchange filter element, in the sealing shell, a top supporting plate is fixed on the top plate, and uniformly distributed through holes are formed in the top plate and the top supporting plate; the bottom supporting plates and the top supporting plates are uniformly staggered, a folding filter element is arranged between the bottom supporting plates and the top supporting plates, and the bottom supporting plates and the top supporting plates are inserted into the bends of the folding filter element in a staggered manner;
the folding filter element comprises a PTEE microporous membrane, and spun-bonded non-woven fabrics are attached to two sides of the PTEE microporous membrane.
It is further: the inner wall of the sealed shell is fixed with a baffle, the top plate is erected on the baffle, and the end part of the top plate is fixed with the baffle through a connecting screw.
One end of the cover plate is hinged with the sealing shell through a hinge, and the other end of the cover plate is fixed with the sealing shell through a fastening screw.
The wet heat exchange filter element comprises hydrophobic paper which is repeatedly folded.
This novel high-efficient air filtration artificial nose can provide effectual respiratory protection for the mechanical ventilation patient, and better avoiding breathing machine, anesthesia machine to be polluted by respiratory tract infection patient simultaneously. Compared with the prior art, the invention has the beneficial effects that:
1, the folding filter element adopts a PTEF microporous membrane, does not depend on static electricity, can realize long-time mechanical filtration of virus and other pollution particles, and the design of the folding angle of the PTFE microporous membrane enlarges the surface area of the filter membrane, so that the air flow resistance is greatly reduced, and the applicability of the PTEF microporous membrane is improved;
2, the filter element with large folding angle design is easy to collapse due to condensed water, so that the surface area of the filter membrane is reduced, and the air resistance is improved; according to the scheme, the supporting plates which are arranged in a staggered mode are adopted to provide support for the folding filter element, so that the shape of the folding filter element can be kept on one hand, and the folding filter element can work for a long time; on the other hand, the supporting plate can be used for condensing condensed water to flow down, so that the water absorption capacity of the folding filter element is reduced and the service life of the folding filter element is prolonged under a stable working state; therefore, even in the case of active humidification ventilation, the device can be used for a long time;
3, the wet heat exchange filter element has the capacity of keeping 70% of temperature and humidity of the respiratory tract and is used for the condition requiring moisture preservation; the wet heat exchange filter core adopts a quick extraction and insertion installation structure, can be selectively installed according to different use conditions, and improves the condition adaptation capability of the artificial nose.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a folded filter cartridge according to an embodiment of the invention;
in the figure: 1. a remote interface; 2. a seal housing; 2-1, a socket; 2-2, a gear stage; 3. a proximal interface; 4. a wet heat exchange filter element; 5. sampling hole and blocking nut; 6. a bottom plate; 7. a bottom stay plate; 8. a top plate; 9. a top brace; 10. folding the filter element; 10-1, PTEE microporous membrane; 10-2, spun-bonded nonwoven fabric; 11. a cover plate; 11-1, a trapezoid rubber block; 12. a connecting screw; 13. a hinge; 14. and (5) fastening a screw.
Description of the embodiments
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Referring to fig. 1 and 2, an air filtering artificial nose comprises a sealing shell 2, wherein two ends of the sealing shell 2 are respectively connected with a distal end interface 1 and a proximal end interface 3, and one side of the distal end interface 1 is connected with a sampling hole and a blocking nut 5.
The improvement of the embodiment is that:
a wet heat exchange filter element 4 is arranged on one side of the sealing shell 2 close to the proximal end opening 3, and the wet heat exchange filter element 4 comprises repeatedly folded hydrophobic paper. The side surface of the sealing shell 2 is provided with a socket 2-1 at the opposite position of the wet heat exchange filter element 4, and the wet heat exchange filter element 4 is inserted into the sealing shell 2 from the socket 2-1. The outer side of the socket 2-1 is hinged with a cover plate 11 through a hinge 13, and the inner side surface of the cover plate 11 is provided with a trapezoid rubber block 11-1 matched with the socket 2-1. The trapezoid rubber block 11-1 is inserted into the socket 2-1 in a matched mode, and the joint of the periphery of the trapezoid rubber block 11-1 and the socket 2-1 is an inclined plane; the original end of the cover plate 11 is fixed with the sealing shell 2 through a fastening screw 14; after the trapezoid rubber block 11-1 is pressed, the periphery is deformed to a certain extent, and the sealing effect is achieved. The wet heat exchange filter element has the capability of retaining 70% of the temperature and humidity of the respiratory tract and is used for the condition requiring moisture retention. The wet heat exchange filter element adopts a rapid extraction and insertion installation structure, can be selectively installed according to different use conditions, and improves the condition adaptation capability of the artificial nose.
A bottom plate 6 is fixed on one side of the sealing shell 2 close to the far-end interface 1, bottom supporting plates 7 are uniformly arranged on the bottom plate 6, and uniformly distributed through holes are formed in the bottom plate 6 and the bottom supporting plates 7. The inner wall of the sealed shell 2 is fixed with a baffle 2-2, a top plate 8 is erected on the baffle 2-2, and the end part of the top plate 8 is fixed with the baffle 2-2 through a connecting screw 12. The top plate 8 is fixedly provided with top supporting plates 9 which are uniformly arranged, and the top plate 8 and the top supporting plates 9 are provided with uniformly distributed through holes. The bottom supporting plates 7 and the top supporting plates 9 are uniformly staggered, a folding filter element 10 is arranged between the bottom supporting plates 7 and the top supporting plates 9, and the bottom supporting plates 7 and the top supporting plates 9 are staggered and inserted into the bending of the folding filter element 10.
Because the filter element with large folding angle design is easy to collapse due to condensed water, the surface area of the filter membrane is reduced, and the air resistance is improved. Therefore, the support plates which are arranged in a staggered way are adopted to provide support for the folding filter element, so that the shape of the folding filter element can be maintained on one hand, and the folding filter element can be ensured to work for a long time; on the other hand, the supporting plate can be used for condensing condensed water to flow down, so that the water absorption capacity of the folding filter element is reduced and the service life of the folding filter element is prolonged under a stable working state; therefore, even in the case of active humidification ventilation, the device can be used for a long time.
Further, the folded filter element 10 comprises a PTEE microporous membrane 10-1, and spun-bonded non-woven fabrics 10-2 are adhered to two sides of the PTEE microporous membrane 10-1. The folding filter element adopts the PTEF microporous membrane, does not depend on static electricity, can realize long-time mechanical filtration of virus and other pollution particles, and the angle design of the PTFE microporous membrane enlarges the surface area of the filter membrane, so that the air flow resistance is greatly reduced, and the applicability of the PTEF microporous membrane is improved.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form 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 the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (2)
1. An air filtering artificial nose comprises a sealing shell (2), wherein two ends of the sealing shell (2) are respectively connected with a far-end interface (1) and a near-end interface (3), and one side of the far-end interface (1) is connected with a sampling hole and a blocking nut (5);
the method is characterized in that:
a wet heat exchange filter element (4) is arranged on one side, close to the proximal end interface (3), in the sealing shell (2); a socket (2-1) is arranged at the opposite position of the side surface of the sealing shell (2) and the wet heat exchange filter element (4), and the wet heat exchange filter element (4) is inserted into the sealing shell (2) from the socket (2-1); a cover plate (11) is hinged to the outer side of the socket (2-1); the inner side surface of the cover plate (11) is provided with a trapezoid rubber block (11-1) matched with the socket (2-1); the trapezoid rubber block (11-1) is inserted into the socket (2-1) in a matched mode, and the joint of the periphery of the trapezoid rubber block (11-1) and the socket (2-1) is an inclined plane;
a bottom plate (6) is fixed on one side, close to the far-end interface (1), of the sealing shell (2), bottom supporting plates (7) are uniformly arranged on the bottom plate (6), and uniformly distributed through holes are formed in the bottom plate (6) and the bottom supporting plates (7); a top plate (8) is arranged on one side, close to the wet heat exchange filter element (4), in the sealing shell (2), top supporting plates (9) are uniformly arranged on the top plate (8), and uniformly distributed through holes are formed in the top plate (8) and the top supporting plates (9); the bottom supporting plates (7) and the top supporting plates (9) are uniformly staggered, a folding filter element (10) is arranged between the bottom supporting plates (7) and the top supporting plates (9), and the bottom supporting plates (7) and the top supporting plates (9) are staggered and inserted into the bends of the folding filter element (10);
the folding filter element (10) comprises a PTEE microporous membrane (10-1), and spun-bonded non-woven fabrics (10-2) are attached to two sides of the PTEE microporous membrane (10-1);
the inner wall of the sealing shell (2) is fixedly provided with a baffle (2-2), the top plate (8) is erected on the baffle (2-2), and the end part of the top plate (8) is fixed with the baffle (2-2) through a connecting screw (12);
one end of the cover plate (11) is hinged with the sealing shell (2) through a hinge (13), and the other end of the cover plate (11) is fixed with the sealing shell (2) through a fastening screw (14).
2. The air filtering artificial nose according to claim 1, wherein: the wet heat exchange filter element (4) comprises hydrophobic paper which is repeatedly folded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430917.0A CN111494831B (en) | 2020-05-20 | 2020-05-20 | Air filtering artificial nose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010430917.0A CN111494831B (en) | 2020-05-20 | 2020-05-20 | Air filtering artificial nose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111494831A CN111494831A (en) | 2020-08-07 |
| CN111494831B true CN111494831B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010430917.0A Active CN111494831B (en) | 2020-05-20 | 2020-05-20 | Air filtering artificial nose |
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| CN (1) | CN111494831B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000107539A (en) * | 1998-10-01 | 2000-04-18 | Daikin Ind Ltd | Air filter pack and air filter |
| CN2705444Y (en) * | 2004-05-12 | 2005-06-22 | 徐建君 | Filter core |
| CN201997199U (en) * | 2009-05-11 | 2011-10-05 | 天津市滨海净化设施有限公司 | Novel low-resistance high-temperature resisting high-efficiency filter |
| CN102989249A (en) * | 2012-08-23 | 2013-03-27 | 蚌埠市多宝塑模科技有限公司 | Enhanced air filter |
| CN205814820U (en) * | 2016-06-02 | 2016-12-21 | 广州涞富医疗设备有限公司 | A kind of artificial nose of band waste liquid tank |
| CN205814821U (en) * | 2016-06-02 | 2016-12-21 | 广州妥谱医疗设备有限公司 | A kind of artificial nose from effluent |
| CN208911677U (en) * | 2018-07-18 | 2019-05-31 | 广州信成净化设备有限公司 | It is a kind of just to imitate folding net type filter |
| CN110270165A (en) * | 2018-03-16 | 2019-09-24 | 梁克俭 | Convenient for the air cleaning facility unpicked and washed |
| CN110464960A (en) * | 2019-08-26 | 2019-11-19 | 江苏海德医学科技股份有限公司 | Heat and moisture exchanger and filter |
| CN213789679U (en) * | 2020-05-20 | 2021-07-27 | 朱杨子 | Novel high-efficient filtration artificial nose |
-
2020
- 2020-05-20 CN CN202010430917.0A patent/CN111494831B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000107539A (en) * | 1998-10-01 | 2000-04-18 | Daikin Ind Ltd | Air filter pack and air filter |
| CN2705444Y (en) * | 2004-05-12 | 2005-06-22 | 徐建君 | Filter core |
| CN201997199U (en) * | 2009-05-11 | 2011-10-05 | 天津市滨海净化设施有限公司 | Novel low-resistance high-temperature resisting high-efficiency filter |
| CN102989249A (en) * | 2012-08-23 | 2013-03-27 | 蚌埠市多宝塑模科技有限公司 | Enhanced air filter |
| CN205814820U (en) * | 2016-06-02 | 2016-12-21 | 广州涞富医疗设备有限公司 | A kind of artificial nose of band waste liquid tank |
| CN205814821U (en) * | 2016-06-02 | 2016-12-21 | 广州妥谱医疗设备有限公司 | A kind of artificial nose from effluent |
| CN110270165A (en) * | 2018-03-16 | 2019-09-24 | 梁克俭 | Convenient for the air cleaning facility unpicked and washed |
| CN208911677U (en) * | 2018-07-18 | 2019-05-31 | 广州信成净化设备有限公司 | It is a kind of just to imitate folding net type filter |
| CN110464960A (en) * | 2019-08-26 | 2019-11-19 | 江苏海德医学科技股份有限公司 | Heat and moisture exchanger and filter |
| CN213789679U (en) * | 2020-05-20 | 2021-07-27 | 朱杨子 | Novel high-efficient filtration artificial nose |
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| Publication number | Publication date |
|---|---|
| CN111494831A (en) | 2020-08-07 |
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Effective date of registration: 20230919 Address after: 221000 No. 209 Copper Mountain Road, Jiangsu, Xuzhou Applicant after: XUZHOU MEDICAL University Address before: 221009 No. 199 Jiefang South Road, Jiangsu, Xuzhou Applicant before: Zhu Yangzi |
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