CN111346282A - Novel coronavirus filter for noninvasive ventilator pipeline - Google Patents
Novel coronavirus filter for noninvasive ventilator pipeline Download PDFInfo
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- CN111346282A CN111346282A CN202010159591.2A CN202010159591A CN111346282A CN 111346282 A CN111346282 A CN 111346282A CN 202010159591 A CN202010159591 A CN 202010159591A CN 111346282 A CN111346282 A CN 111346282A
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- filter
- novel coronavirus
- noninvasive ventilator
- vent hole
- snap ring
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- 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
- A61M16/0087—Environmental safety or protection means, e.g. preventing explosion
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- 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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
- A61M16/106—Filters in a path
- A61M16/107—Filters in a path in the inspiratory path
Abstract
The novel coronavirus filter for the noninvasive ventilator pipeline comprises a filtering structure and a fixing structure for fixing the filtering structure on an expiratory valve, and is characterized in that the filtering structure is arranged at an exhaust hole opening below a ventilator mask, and the filtering structure is communicated with an exhaust hole; the filtering structure is arranged on the side wall of the fixed structure and is fixedly connected with the fixed structure; through fixing filtration on expiratory valve, the gas of patient exhalation gets into filtration through the exhaust hole, releases into the air after filtration of filtration, and the gas that gets into in the air after patient exhalation does not contain novel coronavirus this moment, then the reduction of very big degree medical personnel treatment and nursing are infected the risk when using the breathing machine patient.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a novel coronavirus filter for a noninvasive ventilator circuit.
Background
The novel coronavirus pneumonia (COVID-19) is pneumonia caused by 2019 novel coronavirus infection, the clinical manifestations of the pneumonia mainly include fever, hypodynamia and dry cough, upper respiratory symptoms such as nasal obstruction and rhinorrhea are rare, the transmission route mainly includes respiratory droplets and close contact transmission, and the possibility of aerosol transmission exists under the condition of long-time exposure to high-concentration aerosol in a relatively closed environment.
The new coronavirus pneumonia is in an early rapid change stage. China has published the whole genome sequence of a novel coronavirus that leads to novel coronavirus pneumonia, which will help global scientists and public health organizations to add research and development of diagnostic reagents, as well as study of virus pathogenicity. The national Weijian Commission has issued No. 1 bulletin, which brings pneumonia infected by novel coronavirus into the infectious disease class B regulated by infectious disease control Law, but takes the prevention and control measures of the infectious disease class A and brings the pneumonia into quarantine infectious disease management.
Based on current epidemiological investigation, the incubation period is 1-14 days, and is mostly 3-7 days. It is mainly manifested as fever, fatigue and dry cough. A few patients have nasal obstruction, watery nasal discharge, pharyngalgia and diarrhea. Severe patients often develop dyspnea and/or hypoxemia one week after onset, and severe patients rapidly progress to acute respiratory distress syndrome, septic shock, refractory metabolic acidosis, and hemorrhagic coagulation dysfunction. It is worth noting that the patients with severe or critical illness may have moderate or low fever, even without obvious fever. Mild patients only manifest low fever, slight asthenia, etc., and no manifestations of pulmonary inflammation.
For patients with serious or critical illness, when respiratory distress and/or hypoxemia can not be relieved after the patients receive standard oxygen therapy, the patients need to use a respirator for assisted respiration, noninvasive ventilation has the advantages of no need of establishing an artificial airway, difficulty in generating ventilator-related pneumonia, convenience in use and removal and the like, and the method is often used as a first-choice treatment method for ventilator-assisted respiration of patients with coronavirus pneumonia and is widely applied clinically. However, the gas exhaled by the patient is released into the air through the exhaust hole on the exhalation valve, the gas exhaled by the patient with the novel coronavirus pneumonia contains the novel coronavirus, the medical personnel and other patients in a sick room are exposed to the environment containing the gas exhaled by the patient for a long time, the environment is relatively closed, the risk of aerosol transmission exists, and the occupational risk of infection of the medical personnel is increased.
The invention provides a novel coronavirus filter for a noninvasive ventilator pipeline, aiming at the problem that medical staff and other patients in a sick room in the prior art are exposed in the environment containing the gas exhaled by a novel coronavirus pneumonia patient for a long time and have occupational risks of aerosol transmission.
Disclosure of Invention
In order to solve the problems set forth in the background above, the present invention provides a novel coronavirus filter for use in a noninvasive ventilator circuit.
The novel coronavirus filter for the noninvasive ventilator pipeline comprises a filtering structure and a fixing structure for fixing the filtering structure on an expiratory valve, and is characterized in that the filtering structure is arranged at an exhaust hole opening below a ventilator mask, and the filtering structure is communicated with an exhaust hole; the filtering structure is arranged on the side wall of the fixed structure and is fixedly connected with the fixed structure; through fixing filtration on the expiratory valve, the gas of patient exhalation gets into filtration through the exhaust hole, releases into the air after filtration of filtration, and the gas that gets into in the air after patient exhalation does not contain novel coronavirus this moment, then the reduction of very big degree medical personnel treatment and nursing the risk of being infected when using the breathing machine patient.
Furthermore, the fixing structure is arranged into an annular clamping ring, the inner diameter of the clamping ring is larger than the outer diameter of the expiratory valve, and the clamping ring is tightly attached to the outer surface of the expiratory valve; the clamping ring is tightly attached to the expiratory valve, so that air leakage is effectively reduced.
Further, the angle of the clamping ring is set to be 340-350 degrees; the pressure detection valve arranged beside the exhaust hole is provided with a containing gap, so that the tight connection between the clamping ring and the expiratory valve is ensured.
Furthermore, a vent hole is arranged at the position, corresponding to the exhaust hole, of the side wall of the clamping ring, the filtering structure is arranged at the outer opening of the vent hole, and the filtering structure is integrally connected with the outer edge of the vent hole; this arrangement allows the filter structure to communicate with the vent holes and the exhaled air from the patient to enter the filter structure to be filtered.
Further, the diameter of the vent hole is larger than that of the exhaust hole, and the vent hole covers the exhaust hole; this arrangement prevents exhaled air from the exhaust vent from passing directly into the atmosphere.
Furthermore, a leakage-proof air cushion is arranged around the vent hole and is integrally connected with the edge of the vent hole; the arrangement enhances the tightness of the vent hole and greatly reduces the probability of virus entering air.
Furthermore, the anti-leakage air cushion is made of soft medical silica gel material; the air leakage prevention cushion with the arrangement has good sealing performance.
Further, the filter structure comprises a shell and a filter element arranged inside the shell, and the shell is integrally connected with the outer edge of the vent hole.
Further, the shell is arranged to be a horn-shaped shell, and the side wall of one end of the horn-shaped shell with larger bottom area faces to the atmosphere end; the shell with the arrangement can smoothly release the gas exhaled by the patient into the air.
Further, the size of the housing is larger than that of the exhaust hole, and the housing completely covers the exhaust hole; this arrangement ensures smooth flow of gas.
Further, a hollow hole is formed in the side wall of one end, with a larger bottom area, of the horn-shaped shell; this arrangement ensures that the filtered gas can be smoothly released into the atmosphere.
Further, the filter element is a filter element containing a novel coronavirus inactivation substance; the filter element with the arrangement can inactivate the novel coronavirus.
Further, the novel coronavirus inactivation substance is diethyl ether or 75% ethanol or chlorine-containing disinfectant or peroxyacetic acid; the substances can effectively inactivate the novel coronavirus, can inactivate other bacteria or viruses in addition, can also achieve the inactivation function on other bacteria or viruses, and enable the filter to have a wider application range.
Further, the filter element also comprises a water absorption layer; the water absorbing layer can absorb water in the air, and the filter is prevented from being blocked.
Further, the outer edge of the filter element is tightly connected with the inner wall of the shell; this arrangement avoids the release of unfiltered gases into the air.
Furthermore, the clamping ring is made of soft and non-toxic plastic materials, and the inner diameter of the opening end of the clamping ring is smaller than the outer diameter of the expiratory valve; the clamping ring can be buckled on the expiratory valve by means of the property of the material of the clamping ring, and the expiratory valve is convenient to use.
Or the clamping ring is made of hard plastic materials, and a connecting structure for fixing the clamping ring on the expiratory valve is arranged at the opening end of the clamping ring; this arrangement provides a secure attachment of the collar to the exhalation valve.
Furthermore, the connecting structure comprises a connecting ring arranged on one side of the opening of the clamping ring and a magic tape arranged on the opposite side of the opening of the clamping ring, a first adhesive surface of the magic tape is arranged at one end of the magic tape connected with the opening of the clamping ring, and a second adhesive surface corresponding to the first adhesive surface is arranged at the free end of the magic tape; when the fastening ring is used, the free end of the magic tape penetrates through the connecting ring and then the second pasting surface and the first pasting surface are pasted, so that the fastening ring is fixed on the exhalation valve.
Furthermore, 2-4 connecting rings and corresponding magic tapes are arranged at the opening end of the clamping ring; the arrangement enhances the firmness of the fixing of the clamping ring on the expiratory valve.
Or the connecting structure comprises a buckle arranged on one side of the opening of the clamping ring and a clamping groove arranged on the opposite side of the opening of the clamping ring, and the buckle is clamped with the clamping groove; when the exhalation valve is used, the buckle is clamped into the clamping groove, so that the clamping ring is fixed on the exhalation valve.
Furthermore, two sides of the opening of the clamping ring are respectively provided with a soft extending plate, the buckle is arranged on the soft extending plate on one side, and the clamping groove is arranged on the opposite soft extending plate; this kind sets up convenient to use, can be fast with buckle and draw-in groove built-up connection.
Further, a sterile packaging bag for packaging the novel coronavirus filter for the noninvasive ventilator circuit is arranged; this arrangement ensures sterility of the novel coronavirus filter for use in a noninvasive ventilator circuit.
Compared with the virus filtering apparatus in the prior art, the technical scheme of the invention has the following advantages:
1. this technical scheme's filtration sets up at exhaust hole opening part, has avoided setting up the filter between breathing machine pipeline and face guard among the prior art, influences the patient and breathes in and lead to the patient to hold back the breath and the condition that the breathing difficulty aggravates.
2. The filtering structure of the technical scheme can be conveniently and quickly fixed on the expiratory valve, and is convenient to replace.
3. The filtering structure of the technical scheme has the advantages of simple structure, low overall price, economy, practicability and environmental protection.
4. This technical scheme's the effectual novel coronavirus deactivation with in the patient's gas of exhaling of filtration, the reduction of very big degree medical personnel and other patients in the sick room expose for a long time in the environment that contains the virus and through the risk that aerosol is infected, effectively protected medical personnel's life safety.
The application method of the technical scheme comprises the following steps: before use, the production date and the validity period of the sterile packaging bag are checked, a novel coronavirus filter for a noninvasive ventilator pipeline is taken out, a clamping ring is fixed on an expiratory valve, a vent hole of the clamping ring is aligned with an exhaust hole on the expiratory valve, the open end of the clamping ring is aligned with a pressure detection valve on the expiratory valve, the clamping ring is tightly attached to the outer side wall of the expiratory valve and firmly fixed, gas exhaled by a patient enters a filtering structure through the exhaust hole, viruses in the gas are inactivated by a filter element, and the gas filtered by the filtering structure is harmless gas which does not threaten the life safety of medical personnel; in addition, the nurse can in time change the novel coronavirus filter that is used for noninvasive ventilator circuit of new for the patient according to the actual use condition of filter core to guarantee the lasting validity of filtration to viral inactivation.
Drawings
FIG. 1 is a schematic diagram of the structure of the novel coronavirus filter for noninvasive ventilator circuit of the present invention fixed on an exhalation valve;
FIG. 2 is a schematic diagram showing the overall structure of the novel coronavirus filter for noninvasive ventilator circuit of the present invention;
FIG. 3 is a schematic structural view of the novel coronavirus filter for a noninvasive ventilator circuit of the present invention fixed to an exhalation valve by a hook and loop fastener;
FIG. 4 is a schematic view of the overall structure of the novel coronavirus filter for noninvasive ventilator circuit of the present invention, wherein the coronavirus filter is provided with a magic tape and a connection ring;
FIG. 5 is a schematic view of the overall structure of the novel coronavirus filter for noninvasive ventilator circuit of the present invention, wherein the coronavirus filter is provided with a magic tape and a connection ring;
FIG. 6 is a schematic structural view of the novel coronavirus filter for noninvasive ventilator circuit of the present invention fixed to the exhalation valve by a buckle;
FIG. 7 is a schematic view of the overall structure of the novel coronavirus filter for noninvasive ventilator circuit of the present invention with a buckle and a slot;
FIG. 8 is a schematic top view of the novel coronavirus filter for a noninvasive ventilator circuit of the present invention with a snap and a slot;
FIG. 9 is a schematic cross-sectional view of the novel coronavirus filter for noninvasive ventilator circuit of the present invention with a buckle and a slot;
FIG. 10 is a schematic cross-sectional view of a novel coronavirus filter clip and clip for a noninvasive ventilator circuit of the present invention;
FIG. 11 is a schematic diagram of an exploded view of the novel coronavirus filter for use in a noninvasive ventilator circuit of the present invention;
FIG. 12 is a schematic diagram of the overall structure of the novel coronavirus filter structure for noninvasive ventilator circuit of this invention;
in the figure, 1, a filter structure; 11. a filter element; 12. hollowing out holes; 2. a snap ring; 21. a snap ring opening; 22. a connecting ring; 23. magic tape; 24. a soft extension plate; 241. buckling; 242. a card slot; 25. a vent hole; 251. the air leakage prevention cushion; 3. an exhalation valve; 31. an exhaust hole; 32. and a pressure detection valve.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
EXAMPLE 1 novel coronavirus Filter for noninvasive ventilator circuits
The novel coronavirus filter for the noninvasive ventilator comprises a filtering structure 1 and a fixing structure for fixing the filtering structure 1 on an expiratory valve 3, and is characterized in that the filtering structure 1 is arranged at the opening of an exhaust hole 31 below a ventilator mask, and the filtering structure 1 is communicated with the exhaust hole 31; the filtering structure 1 is arranged on the side wall of the fixed structure, and the filtering structure 1 is fixedly connected with the fixed structure; through fixing filtration 1 on expiratory valve 3, the gas of patient exhalation gets into filtration 1 through exhaust hole 31, releases into the air after filtration 1 filters, and the gas that gets into in the air after the patient exhalation at this moment does not contain novel coronavirus almost, then the reduction of very big degree medical personnel treatment and nursing are infected the risk when using the breathing machine patient.
The fixing structure is an annular clamping ring 2, the inner diameter of the clamping ring 2 is larger than the outer diameter of the expiratory valve 3, and the clamping ring 2 is tightly attached to the outer surface of the expiratory valve 3; the clamping ring 2 and the expiratory valve 3 are tightly attached, so that air leakage is effectively reduced.
The angle of the clamping ring 2 is set to be 340 degrees; the arrangement leaves a gap for accommodating the pressure detection valve 32 beside the exhaust hole 31, and ensures the tight connection between the snap ring 2 and the expiratory valve 3.
A vent hole 25 is arranged at the position, corresponding to the exhaust hole 31, of the side wall of the clamping ring 2, the filtering structure 1 is arranged at the outer opening of the vent hole 25, and the filtering structure 1 is integrally connected with the outer edge of the vent hole 25; this arrangement places the filter structure 1 in communication with the vent hole 31 and the patient's exhaled air enters the filter structure 1 to be filtered.
The diameter of the vent hole 25 is larger than that of the exhaust hole 31, and the vent hole 25 covers the exhaust hole 31; this arrangement prevents exhaled air from the exhaust vents 31 from passing directly into the atmosphere.
The filter structure 1 comprises a shell and a filter element 11 arranged in the shell, wherein the shell is integrally connected with the outer edge of the vent hole 25.
The shell is a horn-shaped shell, and the side wall of one end of the horn-shaped shell with larger bottom area faces the atmosphere end; the shell with the arrangement can smoothly release the gas exhaled by the patient into the air.
The filter element 11 is a filter element 11 containing a novel coronavirus inactivation substance; the filter element 11 arranged in this way can inactivate the novel coronavirus.
The novel coronavirus inactivating substance is diethyl ether, can effectively inactivate the novel coronavirus, can inactivate other bacteria or viruses in addition, can also inactivate other bacteria or viruses, and can also inactivate other bacteria or viruses, so that the filter has a wider application range.
The outer edge of the filter element 11 is tightly connected with the inner wall of the shell; this arrangement avoids the release of unfiltered gases into the air.
The clamping ring 2 is made of soft nontoxic plastic materials, and the inner diameter of the opening 21 end of the clamping ring is smaller than the outer diameter of the expiratory valve 3; the arrangement can be realized by buckling the clamping ring 2 on the expiratory valve 3 by means of the property of the material of the clamping ring 2, so that the usage is convenient.
Arranging a sterile packaging bag for packaging the novel coronavirus filter for the noninvasive ventilator circuit; this arrangement ensures sterility of the novel coronavirus filter for use in a noninvasive ventilator circuit.
EXAMPLE 2 novel coronavirus Filter for noninvasive ventilator circuits
The novel coronavirus filter for the noninvasive ventilator comprises a filtering structure 1 and a fixing structure for fixing the filtering structure 1 on an expiratory valve 3, and is characterized in that the filtering structure 1 is arranged at the opening of an exhaust hole 31 below a ventilator mask, and the filtering structure 1 is communicated with the exhaust hole 31; the filtering structure 1 is arranged on the side wall of the fixed structure, and the filtering structure 1 is fixedly connected with the fixed structure; through fixing filtration 1 on expiratory valve 3, the gas of patient exhalation gets into filtration 1 through exhaust hole 31, releases into the air after filtration 1 filters, and the gas that gets into in the air after the patient exhalation at this moment does not contain novel coronavirus almost, then the reduction of very big degree medical personnel treatment and nursing are infected the risk when using the breathing machine patient.
The fixing structure is an annular clamping ring 2, the inner diameter of the clamping ring 2 is larger than the outer diameter of the expiratory valve 3, and the clamping ring 2 is tightly attached to the outer surface of the expiratory valve 3; the clamping ring 2 and the expiratory valve 3 are tightly attached, so that air leakage is effectively reduced.
The angle of the clamping ring 2 is set to be 350 degrees; the arrangement leaves a gap for accommodating the pressure detection valve 32 beside the exhaust hole 31, and ensures the tight connection between the snap ring 2 and the expiratory valve 3.
A vent hole 25 is arranged at the position, corresponding to the exhaust hole 31, of the side wall of the clamping ring 2, the filtering structure 1 is arranged at the outer opening of the vent hole 25, and the filtering structure 1 is integrally connected with the outer edge of the vent hole 25; this arrangement places the filter structure 1 in communication with the vent hole 31 and the patient's exhaled air enters the filter structure 1 to be filtered.
The diameter of the vent hole 25 is larger than that of the exhaust hole 31, and the vent hole 25 covers the exhaust hole 31; this arrangement prevents exhaled air from the exhaust vents 31 from passing directly into the atmosphere.
A leakage-proof air cushion 251 is arranged around the vent hole 25, and the leakage-proof air cushion 251 is integrally connected with the edge of the vent hole 25; the arrangement enhances the tightness of the vent hole 25 and greatly reduces the probability of virus entering the air.
The anti-leakage air cushion 251 is made of soft medical silica gel material; the anti-leakage air cushion 251 has good sealing performance.
The filter structure 1 comprises a shell and a filter element 11 arranged in the shell, wherein the shell is integrally connected with the outer edge of the vent hole 25.
The shell is a horn-shaped shell, and the side wall of one end of the horn-shaped shell with larger bottom area faces the atmosphere end; the shell with the arrangement can smoothly release the gas exhaled by the patient into the air.
The filter element 11 is a filter element 11 containing a novel coronavirus inactivation substance; the filter element 11 arranged in this way can inactivate the novel coronavirus.
The novel coronavirus inactivated substance is 75% ethanol; the above substances can effectively inactivate novel coronavirus; in addition, other bacteria or viruses can be inactivated, and the inactivation function can be achieved for other bacteria or viruses, so that the filter has wider application range
The filter element 11 also comprises a water absorbing layer; the water absorbing layer can absorb water in the air, and the filter is prevented from being blocked.
The outer edge of the filter element 11 is tightly connected with the inner wall of the shell; this arrangement avoids the release of unfiltered gases into the air.
The clamping ring 2 is made of soft nontoxic plastic materials, and the inner diameter of the opening 21 end of the clamping ring is smaller than the outer diameter of the expiratory valve 3; the arrangement can be realized by buckling the clamping ring 2 on the expiratory valve 3 by means of the property of the material of the clamping ring 2, so that the usage is convenient.
Arranging a sterile packaging bag for packaging the novel coronavirus filter for the noninvasive ventilator circuit; this arrangement ensures sterility of the novel coronavirus filter for use in a noninvasive ventilator circuit.
EXAMPLE 3 novel coronavirus Filter for noninvasive ventilator circuits
The novel coronavirus filter for the noninvasive ventilator comprises a filtering structure 1 and a fixing structure for fixing the filtering structure 1 on an expiratory valve 3, and is characterized in that the filtering structure 1 is arranged at the opening of an exhaust hole 31 below a ventilator mask, and the filtering structure 1 is communicated with the exhaust hole 31; the filtering structure 1 is arranged on the side wall of the fixed structure, and the filtering structure 1 is fixedly connected with the fixed structure; through fixing filtration 1 on expiratory valve 3, the gas of patient exhalation gets into filtration 1 through exhaust hole 31, releases into the air after filtration 1 filters, and the gas that gets into in the air after the patient exhalation at this moment does not contain novel coronavirus almost, then the reduction of very big degree medical personnel treatment and nursing are infected the risk when using the breathing machine patient.
The fixing structure is an annular clamping ring 2, the inner diameter of the clamping ring 2 is larger than the outer diameter of the expiratory valve 3, and the clamping ring 2 is tightly attached to the outer surface of the expiratory valve 3; the clamping ring 2 and the expiratory valve 3 are tightly attached, so that air leakage is effectively reduced.
The angle of the clamping ring 2 is set to be 345 degrees; the arrangement leaves a gap for accommodating the pressure detection valve 32 beside the exhaust hole 31, and ensures the tight connection between the snap ring 2 and the expiratory valve 3.
A vent hole 25 is arranged at the position, corresponding to the exhaust hole 31, of the side wall of the clamping ring 2, the filtering structure 1 is arranged at the outer opening of the vent hole 25, and the filtering structure 1 is integrally connected with the outer edge of the vent hole 25; this arrangement places the filter structure 1 in communication with the vent hole 31 and the patient's exhaled air enters the filter structure 1 to be filtered.
The diameter of the vent hole 25 is larger than that of the exhaust hole 31, and the vent hole 25 covers the exhaust hole 31; this arrangement prevents exhaled air from the exhaust vents 31 from passing directly into the atmosphere.
A leakage-proof air cushion 251 is arranged around the vent hole 25, and the leakage-proof air cushion 251 is integrally connected with the edge of the vent hole 25; the arrangement enhances the tightness of the vent hole 25 and greatly reduces the probability of virus entering the air.
The anti-leakage air cushion 251 is made of soft medical silica gel material; the anti-leakage air cushion 251 has good sealing performance.
The filter structure 1 comprises a shell and a filter element 11 arranged in the shell, wherein the shell is integrally connected with the outer edge of the vent hole 25.
The shell is a horn-shaped shell, and the side wall of one end of the horn-shaped shell with larger bottom area faces the atmosphere end; the shell with the arrangement can smoothly release the gas exhaled by the patient into the air.
The size of the housing is larger than that of the exhaust hole 31, and the housing completely covers the exhaust hole 31; this arrangement ensures smooth flow of gas.
A hollow hole 12 is formed in the side wall of one end of the horn-shaped shell with larger bottom area; this arrangement ensures that the filtered gas can be smoothly released into the atmosphere.
The filter element 11 is a filter element 11 containing a novel coronavirus inactivation substance; the filter element 11 arranged in this way can inactivate the novel coronavirus.
The novel coronavirus inactivating substance is a chlorine-containing disinfectant; the substances can effectively inactivate the novel coronavirus, can inactivate other bacteria or viruses in addition, can also achieve the inactivation function on other bacteria or viruses, and enable the filter to have a wider application range.
The filter element 11 also comprises a water absorbing layer; the water absorbing layer can absorb water in the air, and the filter is prevented from being blocked.
The outer edge of the filter element 11 is tightly connected with the inner wall of the shell; this arrangement avoids the release of unfiltered gases into the air.
The clamp ring 2 is made of hard plastic materials, and a connecting structure for fixing the clamp ring 2 on the expiratory valve 3 is arranged at the end of the clamp ring opening 21; this arrangement allows the retaining ring 2 to be securely fixed to the exhalation valve 3.
The connecting structure comprises a connecting ring 22 arranged on one side of the snap ring opening 21 and a magic tape 23 arranged on the opposite side of the snap ring opening 21, wherein a first sticking surface of the magic tape 23 is arranged at one end of the magic tape 23 connected with the snap ring opening 21, and a second sticking surface corresponding to the first sticking surface is arranged at the free end of the magic tape 23; when in use, the free end of the magic tape 23 passes through the connecting ring 22 and then the second adhesive surface is adhered to the first adhesive surface, so that the snap ring 2 is fixed on the expiratory valve 3.
2 connecting rings 22 and corresponding magic tapes 23 are arranged at the end of the snap ring opening 21; this arrangement enhances the security of the securing of the collar 2 to the exhalation valve 3.
Arranging a sterile packaging bag for packaging the novel coronavirus filter for the noninvasive ventilator circuit; this arrangement ensures sterility of the novel coronavirus filter for use in a noninvasive ventilator circuit.
EXAMPLE 4 novel coronavirus Filter for noninvasive ventilator circuits
The novel coronavirus filter for the noninvasive ventilator comprises a filtering structure 1 and a fixing structure for fixing the filtering structure 1 on an expiratory valve 3, and is characterized in that the filtering structure 1 is arranged at the opening of an exhaust hole 31 below a ventilator mask, and the filtering structure 1 is communicated with the exhaust hole 31; the filtering structure 1 is arranged on the side wall of the fixed structure, and the filtering structure 1 is fixedly connected with the fixed structure; through fixing filtration 1 on expiratory valve 3, the gas of patient exhalation gets into filtration 1 through exhaust hole 31, releases into the air after filtration 1 filters, and the gas that gets into in the air after the patient exhalation this moment does not contain novel coronavirus, then the reduction of very big degree medical personnel treatment and nursing are infected the risk when using the breathing machine patient.
The fixing structure is an annular clamping ring 2, the inner diameter of the clamping ring 2 is larger than the outer diameter of the expiratory valve 3, and the clamping ring 2 is tightly attached to the outer surface of the expiratory valve 3; the clamping ring 2 and the expiratory valve 3 are tightly attached, so that air leakage is effectively reduced.
The angle of the clamping ring 2 is set to be 350 degrees; the arrangement leaves a gap for accommodating the pressure detection valve 32 beside the exhaust hole 31, and ensures the tight connection between the snap ring 2 and the expiratory valve 3.
A vent hole 25 is arranged at the position, corresponding to the exhaust hole 31, of the side wall of the clamping ring 2, the filtering structure 1 is arranged at the outer opening of the vent hole 25, and the filtering structure 1 is integrally connected with the outer edge of the vent hole 25; this arrangement places the filter structure 1 in communication with the vent hole 31 and the patient's exhaled air enters the filter structure 1 to be filtered.
The diameter of the vent hole 25 is larger than that of the exhaust hole 31, and the vent hole 25 covers the exhaust hole 31; this arrangement prevents exhaled air from the exhaust vents 31 from passing directly into the atmosphere.
A leakage-proof air cushion 251 is arranged around the vent hole 25, and the leakage-proof air cushion 251 is integrally connected with the edge of the vent hole 25; the arrangement enhances the tightness of the vent hole 25 and greatly reduces the probability of virus entering the air.
The anti-leakage air cushion 251 is made of soft medical silica gel material; the anti-leakage air cushion 251 has good sealing performance.
The filter structure 1 comprises a shell and a filter element 11 arranged in the shell, wherein the shell is integrally connected with the outer edge of the vent hole 25.
The shell is a horn-shaped shell, and the side wall of one end of the horn-shaped shell with larger bottom area faces the atmosphere end; the shell with the arrangement can smoothly release the gas exhaled by the patient into the air.
The size of the housing is larger than that of the exhaust hole 31, and the housing completely covers the exhaust hole 31; this arrangement ensures smooth flow of gas.
A hollow hole 12 is formed in the side wall of one end of the horn-shaped shell with larger bottom area; this arrangement ensures that the filtered gas can be smoothly released into the atmosphere.
The filter element 11 is a filter element 11 containing a novel coronavirus inactivation substance; the filter element 11 arranged in this way can inactivate the novel coronavirus.
The novel coronavirus inactivating substance is peroxyacetic acid; the substances can effectively inactivate the novel coronavirus, can inactivate other bacteria or viruses in addition, can also achieve the inactivation function on other bacteria or viruses, and enable the filter to have a wider application range.
The filter element 11 also comprises a water absorbing layer; the water absorbing layer can absorb water in the air, and the filter is prevented from being blocked.
The outer edge of the filter element 11 is tightly connected with the inner wall of the shell; this arrangement avoids the release of unfiltered gases into the air.
The clamp ring 2 is made of hard plastic materials, and a connecting structure for fixing the clamp ring 2 on the expiratory valve 3 is arranged at the end of the clamp ring opening 21; this arrangement allows the retaining ring 2 to be securely fixed to the exhalation valve 3.
The connecting structure comprises a buckle 241 arranged on one side of the clamping ring opening 21 and a clamping groove 242 arranged on the opposite side of the clamping ring opening 21, and the buckle 241 is clamped with the clamping groove 242; when the exhalation valve is used, the buckle 241 is clamped into the clamping groove 242, so that the clamping ring 2 is fixed on the exhalation valve 3.
Two sides of the snap ring opening 21 are respectively provided with a soft extending plate 24, the buckle 241 is arranged on the soft extending plate 24 on one side, and the clamping groove 242 is arranged on the opposite soft extending plate 24; this kind sets up convenient to use, can be fast with buckle 241 and draw-in groove 242 composite connection.
Arranging a sterile packaging bag for packaging the novel coronavirus filter for the noninvasive ventilator circuit; this arrangement ensures sterility of the novel coronavirus filter for use in a noninvasive ventilator circuit.
The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.
Claims (10)
1. The novel coronavirus filter for the noninvasive ventilator pipeline comprises a filtering structure and a fixing structure for fixing the filtering structure on an expiratory valve, and is characterized in that the filtering structure is arranged at an exhaust hole opening below a ventilator mask, and the filtering structure is communicated with an exhaust hole; the filtering structure is arranged on the side wall of the fixing structure and is fixedly connected with the fixing structure.
2. The novel coronavirus filter for noninvasive ventilator circuit of claim 1, wherein the fixed structure is configured as a circular ring-shaped snap ring, the inner diameter of the snap ring is larger than the outer diameter of the expiratory valve, and the snap ring is tightly attached to the outer surface of the expiratory valve.
3. The novel coronavirus filter for noninvasive ventilator circuit of claim 2, wherein a vent hole is provided at a position corresponding to the vent hole on the side wall of the snap ring, the filter structure is provided at the outer opening of the vent hole, and the filter structure is integrally connected with the outer edge of the vent hole.
4. The novel coronavirus filter for noninvasive ventilator circuit of claim 3, wherein an anti-air-leakage cushion is disposed around the vent hole, and the anti-air-leakage cushion is integrally connected with the edge of the vent hole.
5. The novel coronavirus filter for noninvasive ventilator circuit of claim 1, wherein the filter structure comprises a housing and a filter element disposed inside the housing, the housing is integrally connected with the outer edge of the vent hole.
6. The novel coronavirus filter for noninvasive ventilator circuit of claim 5, wherein the filter cartridge is a filter cartridge containing a novel coronavirus inactivating substance.
7. The novel coronavirus filter for noninvasive ventilator circuit of claim 6, wherein the filter cartridge further comprises a water-absorbing layer.
8. The novel coronavirus filter for noninvasive ventilator circuit of claim 2, wherein the snap ring is made of soft non-toxic plastic material, and the inner diameter of the open end of the snap ring is smaller than the outer diameter of the expiratory valve.
9. The novel coronavirus filter for noninvasive ventilator circuits of claim 2, wherein the snap ring is made of rigid plastic material, and a connection structure for fixing the snap ring on the exhalation valve is arranged at the open end of the snap ring.
10. The novel coronavirus filter for noninvasive ventilator circuit of any one of claims 1-9, wherein a sterile packaging bag is provided for packaging the novel coronavirus filter for noninvasive ventilator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159591.2A CN111346282A (en) | 2020-03-10 | 2020-03-10 | Novel coronavirus filter for noninvasive ventilator pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010159591.2A CN111346282A (en) | 2020-03-10 | 2020-03-10 | Novel coronavirus filter for noninvasive ventilator pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN111346282A true CN111346282A (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010159591.2A Pending CN111346282A (en) | 2020-03-10 | 2020-03-10 | Novel coronavirus filter for noninvasive ventilator pipeline |
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