CN215900646U - Multifunctional medical breathing mask - Google Patents
Multifunctional medical breathing mask Download PDFInfo
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- CN215900646U CN215900646U CN202121830920.8U CN202121830920U CN215900646U CN 215900646 U CN215900646 U CN 215900646U CN 202121830920 U CN202121830920 U CN 202121830920U CN 215900646 U CN215900646 U CN 215900646U
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- breathing mask
- mask body
- control unit
- chip microcomputer
- alarm device
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- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 98
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 230000000241 respiratory effect Effects 0.000 claims description 7
- 238000011282 treatment Methods 0.000 abstract description 15
- 230000007547 defect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 47
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 26
- 239000001301 oxygen Substances 0.000 description 26
- 229910052760 oxygen Inorganic materials 0.000 description 26
- 206010019909 Hernia Diseases 0.000 description 22
- 108091006146 Channels Proteins 0.000 description 14
- 239000003814 drug Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 230000003727 cerebral blood flow Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010001052 Acute respiratory distress syndrome Diseases 0.000 description 1
- 102000004868 N-Methyl-D-Aspartate Receptors Human genes 0.000 description 1
- 108090001041 N-Methyl-D-Aspartate Receptors Proteins 0.000 description 1
- 206010038687 Respiratory distress Diseases 0.000 description 1
- 201000000028 adult respiratory distress syndrome Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 210000005013 brain tissue Anatomy 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000007012 clinical effect Effects 0.000 description 1
- 238000011284 combination treatment Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002461 excitatory amino acid Effects 0.000 description 1
- 239000003257 excitatory amino acid Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000008338 local blood flow Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000000324 neuroprotective effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 208000002815 pulmonary hypertension Diseases 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to a multifunctional medical breathing mask, which comprises a breathing mask body and a four-way joint, wherein the front surface of the breathing mask is provided with an air inlet, and one end of the four-way joint is connected with the breathing mask through the air inlet; the other three ends of the four-way joint are used as gas inlet ends and are provided with gas flowmeters, and the ports are provided with switch valves; the breathing mask body is provided with a concentration detection device; one side of the breathing mask body is provided with an emergency exhalation channel, and the other side of the breathing mask body is provided with an air outlet which is connected with an air outlet pipe; the multifunctional medical breathing mask also comprises a single chip microcomputer control unit, and the switching valve, the concentration detection device, the alarm device and the gas flowmeter are electrically connected with the single chip microcomputer control unit through leads; elastic binding belts are arranged on two sides of the breathing mask body and are fixed on the head through buckles and clamping rings; an alarm device is also arranged. The utility model can overcome the defects of troublesome operation, inconvenient mixed use of treatment means and inaccurate detection of related data in the prior art.
Description
Technical Field
The utility model belongs to the technical field of breathing apparatuses, and particularly relates to a multifunctional medical breathing mask.
Background
At present, a breathing mask is indispensable for carrying out various treatments on patients, for example, aerosol inhalation treatment is a common method for treating respiratory diseases, and compared with other administration modes, aerosol inhalation treatment has the characteristics of small dosage, quick drug effect, small systemic side effect and convenience in use. However, the existing atomization treatment facilities are used independently in a set, and patients can only wear one breathing mask which only can carry out atomization inhalation, so that the combination treatment is very inconvenient. In addition, medical gas inhalation is an important treatment method and means, for example, xenon is colorless and tasteless inert gas, has the characteristics of non-combustibility, non-explosive property, non-malformation, low blood gas distribution coefficient and the like, can block excitatory amino acid NMDA receptors, simultaneously proves the reliable neuroprotective effect of xenon in various experiments, and also proves the effective treatment effect on ARDS and pulmonary hypertension; and xenon is used as a tracer for measuring cerebral blood flow, perfusion enhancement scanning is carried out, cerebral blood flow of different parts of the brain can be calculated through a CT workstation system, the cerebral CT has low requirements on CT equipment, short time and high spatial resolution, can be directly compared with a common CT image, is accurate in positioning, can quantitatively analyze local blood flow change of deep brain tissue and accurately evaluate cerebral blood flow reserve, can obtain more comprehensive and detailed CBF data, and related experts indicate that Xe-CT has higher sensitivity than TCD in the evaluation of cerebral blood flow reserve. Patients with respiratory distress need to carry an oxygen mask to inhale oxygen when the patients are seriously ill, the breathing mask is necessary, but the oxygen mask needs to be taken off when the patients are emergently rescued in case of special conditions and critical conditions of the patients, the repeated operation is very troublesome, the rescue opportunity can be delayed, and the work difficulty is increased for medical staff. The existing masks including a mask for atomization inhalation, a mask for medical gas inhalation and an oxygen inhalation mask are only used for a specific treatment project, have single functions, cannot realize seamless switching of multiple treatment modes, and possibly delay the rescue time. Therefore, a multifunctional medical respiratory mask is needed.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the multifunctional medical breathing mask which can overcome the defects of troublesome medical operation, inconvenient mixed use of treatment means and inaccurate detection of related data in the prior art.
A multifunctional medical breathing mask comprises a breathing mask body and a four-way joint, wherein the front surface of the breathing mask is provided with an air inlet, and one end of the four-way joint is connected with the breathing mask through the air inlet; the other three ends of the four-way joint are used as gas inlet ends and are provided with gas flowmeters, and the ports are provided with switch valves; a concentration detection device is arranged on the breathing mask body; an emergency exhalation channel is formed in one side of the breathing mask body and used for exhausting air to the outside in an emergency manner; the other side of the breathing mask body is provided with an air outlet which is connected with an air outlet pipe; the multifunctional medical breathing mask also comprises a single chip microcomputer control unit, and the switching valve, the concentration detection device, the alarm device and the gas flowmeter are electrically connected with the single chip microcomputer control unit through leads; elastic binding belts are arranged on two sides of the breathing mask body and are fixed on the head through buckles and snap rings.
An alarm device is arranged below the air inlet in the front of the breathing mask body, and the alarm device is a buzzer alarm device.
The emergency exhalation channel is connected with an exhaust valve in series, and the exhaust valve is an electric exhaust valve and is electrically connected with the singlechip control unit; the breathing mask is characterized in that a pressure sensor is arranged in the breathing mask body, and the pressure sensor is electrically connected with the single chip microcomputer control unit and the alarm device.
The utility model has the beneficial effects that: the utility model is provided with the four-way joint, can realize that the required gas or liquid medicine is conveyed to the user through the three air inlet ends under the condition of not taking off the mask, has reasonable structural design, multiple functions, convenience and practicability, can timely and accurately change the air flow by transmitting data through the singlechip control unit, the concentration monitoring device and the gas flowmeter, and has more obvious treatment effect. The mask has the advantages of high degree of automation, simple operation, accurate data detection, small error, good clinical effect and wide prospect. The one-way gas check valve is arranged in the utility model, so that gas backflow can be effectively prevented. Multifunctional medical treatment respirator still is provided with pressure sensor and alarm device when satisfying patient's actual demand better, reports to the police when too big internal function that leads to of face guard internal pressure is obstructed.
Drawings
Fig. 1 is a schematic view of a multifunctional medical respiratory mask provided in embodiment 1 of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a side view of FIG. 1;
FIG. 5 is a bottom view of FIG. 1;
wherein,
the breathing mask comprises a breathing mask body 1, a four-way joint 2, a gas flowmeter 3, a switching valve 4, an oxygen concentration sensor 5, a hernia concentration sensor 6, an emergency exhalation channel 7, an air outlet 8 and an alarm device 9.
Detailed Description
For better understanding of the present invention, the technical solutions and effects of the present invention will be described in detail by the following embodiments with reference to the accompanying drawings.
Example 1
As shown in fig. 1-5, a multifunctional medical breathing mask comprises a breathing mask body 1 and a four-way joint 2, wherein an air inlet is formed in the front surface of the breathing mask body, and one end of the four-way joint 2 is connected with the breathing mask body through the air inlet; the other three ends of the four-way joint 2 are provided with gas flow meters 3 as gas inlet ends, and the ports are provided with switch valves 4; in this embodiment, three air inlet ends of the four-way joint 2 are respectively connected with a hernia air inlet pipe, an oxygen air inlet pipe for breathing and an atomized liquid medicine delivery pipe. The breathing mask body 1 is provided with a concentration detection device; an emergency exhalation channel 7 is formed in one side of the breathing mask body 1 and used for exhausting air to the outside in an emergency manner; the other side of the breathing mask body 1 is provided with an air outlet 8 which is connected with an air outlet pipe. An alarm device 9 is arranged below the front air inlet of the breathing mask body 1, and the alarm device 9 is a buzzer alarm device. Multifunctional medical treatment respirator still includes single chip microcomputer control unit (not shown in the figure), ooff valve 4, concentration detection device, alarm device 9, gas flowmeter 3 pass through the wire and are connected with single chip microcomputer control unit electricity, and concentration detection device, gas flowmeter 3 give single chip microcomputer control unit with the data transfer who detects, and single chip microcomputer control unit sends the instruction to ooff valve 4 of three air inlets according to the data of accepting. The model of the single chip microcomputer control unit in the embodiment adopts an STM32F215VE single chip microcomputer.
Two sides of the breathing mask body 1 are provided with elastic binding belts (not shown in the figure) which are fixed on the head through buckles and snap rings.
In this embodiment, hernia intake pipe and oxygen intake pipe pass through four way connection 2 and join, then the atomizing liquid medicine that rethread four way connection 2 and atomizing liquid medicine conveyer pipe carried joins, carries to the air inlet of the respirator body 1.
Preferably, the emergency exhalation channel 7 is connected in series with an exhaust valve, and the exhaust valve is an electric exhaust valve and is electrically connected with the singlechip control unit; the breathing mask body 1 is internally provided with a pressure sensor which is electrically connected with the single chip microcomputer control unit and the alarm device 9. The pressure sensor transmits the detected pressure value inside the breathing mask body 1 to the single chip microcomputer control unit, and when the pressure inside the breathing mask body 1 received by the single chip microcomputer control unit is increased to a certain preset value, the single chip microcomputer control unit sends an opening instruction to the exhaust valve, and the emergency exhalation channel 7 is opened; meanwhile, the pressure sensor converts the pressure signal into an electric signal and transmits the electric signal to the alarm device 9, and the alarm device 9 starts alarming after receiving the signal. In this embodiment, when the internal air pressure of the respiratory mask body 1 increases to 1.55KP, the emergency exhalation passageway 7 is opened.
The embodiment is provided with two concentration detection devices which are arranged at two sides of an upper air inlet of the breathing mask body 1 and are respectively an oxygen concentration sensor 5 and a hernia concentration sensor 6, wherein the oxygen concentration sensor 5 and the hernia concentration sensor 6 transmit detected oxygen concentration and hernia concentration data in the breathing mask body 1 to a single chip microcomputer control unit; the gas flowmeter 3 transmits the detected flow data of the air inlet end to the singlechip control unit. The singlechip control unit compares the received oxygen concentration, hernia concentration and flow data of the air inlet end with the proper oxygen concentration and hernia concentration data preset in the singlechip control unit, controls the opening and closing degree of the switch valve 4, when the values detected by the concentration detection device and the gas flowmeter 3 are greater than the preset values, the singlechip control unit sends an instruction to the switch valve 4 to reduce the opening degree, and when the values detected by the concentration detection device and the gas flowmeter 3 are less than the preset values, the singlechip control unit sends an instruction to the switch valve 4 to increase the opening degree, controls the flow of the three air inlet ends, and ensures that the gas concentration in the breathing mask is suitable for patients.
Example 2
A multifunctional medical breathing mask comprises a breathing mask body 1 and a four-way joint 2, wherein the front surface of the breathing mask is provided with an air inlet, and one end of the four-way joint 2 is connected with the breathing mask through the air inlet; the other three ends of the four-way joint 2 are provided with gas flow meters 3 as gas inlet ends, and the ports are provided with switch valves 4; in this embodiment, three air inlet ends of the four-way joint 2 are respectively connected with a hernia air inlet pipe, an oxygen air inlet pipe for breathing and an atomized liquid medicine delivery pipe. The breathing mask body 1 is provided with a concentration detection device; an emergency exhalation channel 7 is formed in one side of the breathing mask body 1 and used for exhausting air to the outside in an emergency manner; the other side of the breathing mask body 1 is provided with an air outlet 8 which is connected with an air outlet pipe. An alarm device 9 is arranged below the front air inlet of the breathing mask body 1, and the alarm device 9 is a buzzer alarm device. Multifunctional medical treatment respirator still includes single chip microcomputer control unit (not shown in the figure), ooff valve 4, concentration detection device, alarm device 9, gas flowmeter 3 pass through the wire and are connected with single chip microcomputer control unit electricity, and concentration detection device, gas flowmeter 3 give single chip microcomputer control unit with the data transfer who detects, and single chip microcomputer control unit sends the instruction to ooff valve 4 of three air inlets according to the data of accepting. The model of the single chip microcomputer control unit in the embodiment adopts an STM32F215VE single chip microcomputer.
Two sides of the breathing mask body 1 are provided with elastic binding belts (not shown in the figure) which are fixed on the head through buckles and snap rings.
In this embodiment, hernia intake pipe and oxygen intake pipe pass through four way connection 2 and join, then the atomizing liquid medicine that rethread four way connection 2 and atomizing liquid medicine conveyer pipe carried joins, carries to the air inlet of the respirator body 1.
Preferably, the emergency exhalation channel 7 is connected in series with an exhaust valve, and the exhaust valve is an electric exhaust valve and is electrically connected with the singlechip control unit; the breathing mask body 1 is internally provided with a pressure sensor which is electrically connected with the single chip microcomputer control unit and the alarm device 9. The pressure sensor transmits the detected pressure value inside the breathing mask body 1 to the single chip microcomputer control unit, and when the pressure inside the breathing mask body 1 received by the single chip microcomputer control unit is increased to a certain preset value, the single chip microcomputer control unit sends an opening instruction to the exhaust valve, and the emergency exhalation channel 7 is opened; meanwhile, the pressure sensor converts the pressure signal into an electric signal and transmits the electric signal to the alarm device 9, and the alarm device 9 starts alarming after receiving the signal. In this embodiment, when the internal air pressure of the respiratory mask body 1 increases to 1.55KP, the emergency exhalation passageway 7 is opened.
The embodiment is provided with two concentration detection devices which are arranged at two sides of an upper air inlet of the breathing mask body 1 and are respectively an oxygen concentration sensor 5 and a hernia concentration sensor 6, wherein the oxygen concentration sensor 5 and the hernia concentration sensor 6 transmit detected oxygen concentration and hernia concentration data in the breathing mask body 1 to a single chip microcomputer control unit; the gas flowmeter 3 transmits the detected flow data of the air inlet end to the singlechip control unit. The singlechip control unit compares the received oxygen concentration, hernia concentration and flow data of the air inlet end with the proper oxygen concentration and hernia concentration data preset in the singlechip control unit, controls the opening and closing degree of the switch valve 4, when the values detected by the concentration detection device and the gas flowmeter 3 are greater than the preset values, the singlechip control unit sends an instruction to the switch valve 4 to reduce the opening degree, and when the values detected by the concentration detection device and the gas flowmeter 3 are less than the preset values, the singlechip control unit sends an instruction to the switch valve 4 to increase the opening degree, controls the flow of the three air inlet ends, and ensures that the gas concentration in the breathing mask is suitable for patients.
Preferably, an air check valve (not shown in the figure) is arranged at the air inlet, and the air can be ventilated to the interior of the breathing mask body 1 from the four-way joint 2 only in one way; and an air check valve (not shown in the figure) is arranged at the air outlet 8, and air can be discharged from the breathing mask body 1 to the outside in a unidirectional way. The gas check valve does not allow gas to flow back, and the breathing channel is smoother through the one-way gas guiding performance of the gas check valve.
Example 3
A multifunctional medical breathing mask comprises a breathing mask body 1 and a four-way joint 2, wherein the front surface of the breathing mask is provided with an air inlet, and one end of the four-way joint 2 is connected with the breathing mask through the air inlet; the other three ends of the four-way joint 2 are provided with gas flow meters 3 as gas inlet ends, and the ports are provided with switch valves 4; in the embodiment, three air inlet ends of the four-way joint 2 are respectively connected with a hernia air inlet pipe, an oxygen air inlet pipe for breathing and an atomized water delivery pipe. The breathing mask body 1 is provided with a concentration detection device; an emergency exhalation channel 7 is formed in one side of the breathing mask body 1 and used for exhausting air to the outside in an emergency manner; the other side of the breathing mask body 1 is provided with an air outlet 8 which is connected with an air outlet pipe. An alarm device 9 is arranged below the front air inlet of the breathing mask body 1, and the alarm device 9 is a buzzer alarm device. Multifunctional medical treatment respirator still includes single chip microcomputer control unit (not shown in the figure), ooff valve 4, concentration detection device, alarm device 9, gas flowmeter 3 pass through the wire and are connected with single chip microcomputer control unit electricity, and concentration detection device, gas flowmeter 3 give single chip microcomputer control unit with the data transfer who detects, and single chip microcomputer control unit sends the instruction to ooff valve 4 of three air inlets according to the data of accepting. The model of the single chip microcomputer control unit in the embodiment adopts an STM32F215VE single chip microcomputer.
Two sides of the breathing mask body 1 are provided with elastic binding belts (not shown in the figure) which are fixed on the head through buckles and snap rings.
In this embodiment, hernia intake pipe and oxygen intake pipe pass through four way connection 2 and join, then the atomizing liquid medicine that rethread four way connection 2 and atomizing liquid medicine conveyer pipe carried joins, carries to the air inlet of the respirator body 1.
Preferably, the emergency exhalation channel 7 is connected in series with an exhaust valve, and the exhaust valve is an electric exhaust valve and is electrically connected with the singlechip control unit; the breathing mask body 1 is internally provided with a pressure sensor which is electrically connected with the single chip microcomputer control unit and the alarm device 9. The pressure sensor transmits the detected pressure value inside the breathing mask body 1 to the single chip microcomputer control unit, and when the pressure inside the breathing mask body 1 received by the single chip microcomputer control unit is increased to a certain preset value, the single chip microcomputer control unit sends an opening instruction to the exhaust valve, and the emergency exhalation channel 7 is opened; meanwhile, the pressure sensor converts the pressure signal into an electric signal and transmits the electric signal to the alarm device 9, and the alarm device 9 starts alarming after receiving the signal. In this embodiment, when the internal air pressure of the respiratory mask body 1 increases to 1.55KP, the emergency exhalation passageway 7 is opened.
The embodiment is provided with two concentration detection devices which are arranged at two sides of an upper air inlet of the breathing mask body 1 and are respectively an oxygen concentration sensor 5 and a hernia concentration sensor 6, wherein the oxygen concentration sensor 5 and the hernia concentration sensor 6 transmit detected oxygen concentration and hernia concentration data in the breathing mask body 1 to a single chip microcomputer control unit; the gas flowmeter 3 transmits the detected flow data of the air inlet end to the singlechip control unit. The singlechip control unit compares the received oxygen concentration, hernia concentration and flow data of the air inlet end with the proper oxygen concentration and hernia concentration data preset in the singlechip control unit, controls the opening and closing degree of the switch valve 4, when the values detected by the concentration detection device and the gas flowmeter 3 are greater than the preset values, the singlechip control unit sends an instruction to the switch valve 4 to reduce the opening degree, and when the values detected by the concentration detection device and the gas flowmeter 3 are less than the preset values, the singlechip control unit sends an instruction to the switch valve 4 to increase the opening degree, controls the flow of the three air inlet ends, and ensures that the gas concentration in the breathing mask is suitable for patients.
Preferably, an air check valve (not shown in the figure) is arranged at the air inlet, and the air can be ventilated to the interior of the breathing mask body 1 from the four-way joint 2 only in one way; and an air check valve (not shown in the figure) is arranged at the air outlet 8, and air can be discharged from the breathing mask body 1 to the outside in a unidirectional way. The gas check valve does not allow gas to flow back, and the breathing channel is smoother through the one-way gas guiding performance of the gas check valve.
Including the port that can carry the atomized water in the inlet end in this implementation, can carry the atomized water according to patient's actual conditions, for conveying gas humidification, heating, can make gas transportation safer, prevent that the inside atmospheric pressure of respirator is too big, the trachea internal gas flow is too big, feels more comfortable when still making patient's inhaled gas simultaneously, more is favorable to the recovery of patient's state of an illness.
Claims (3)
1. A multifunctional medical breathing mask is characterized in that: the breathing mask comprises a breathing mask body and a four-way joint, wherein the front surface of the breathing mask is provided with an air inlet, and one end of the four-way joint is connected with the breathing mask through the air inlet; the other three ends of the four-way joint are used as gas inlet ends and are provided with gas flowmeters, and the ports are provided with switch valves; a concentration detection device is arranged on the breathing mask body; an emergency exhalation channel is formed in one side of the breathing mask body and used for exhausting air to the outside in an emergency manner; the other side of the breathing mask body is provided with an air outlet which is connected with an air outlet pipe; the multifunctional medical breathing mask also comprises a single chip microcomputer control unit, and the switching valve, the concentration detection device, the alarm device and the gas flowmeter are electrically connected with the single chip microcomputer control unit through leads; elastic binding belts are arranged on two sides of the breathing mask body and are fixed on the head through buckles and snap rings.
2. The multifunctional medical respiratory mask of claim 1, wherein: an alarm device is arranged below the air inlet in the front of the breathing mask body, and the alarm device is a buzzer alarm device.
3. The multifunctional medical respiratory mask of claim 1, wherein: the emergency exhalation channel is connected with an exhaust valve in series, and the exhaust valve is an electric exhaust valve and is electrically connected with the singlechip control unit; the breathing mask is characterized in that a pressure sensor is arranged in the breathing mask body, and the pressure sensor is electrically connected with the single chip microcomputer control unit and the alarm device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121830920.8U CN215900646U (en) | 2021-08-06 | 2021-08-06 | Multifunctional medical breathing mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121830920.8U CN215900646U (en) | 2021-08-06 | 2021-08-06 | Multifunctional medical breathing mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215900646U true CN215900646U (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121830920.8U Expired - Fee Related CN215900646U (en) | 2021-08-06 | 2021-08-06 | Multifunctional medical breathing mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215900646U (en) |
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2021
- 2021-08-06 CN CN202121830920.8U patent/CN215900646U/en not_active Expired - Fee Related
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