CN112827042A - Oxygen therapy mask suitable for lung disease treatment - Google Patents
Oxygen therapy mask suitable for lung disease treatment Download PDFInfo
- Publication number
- CN112827042A CN112827042A CN202110003604.1A CN202110003604A CN112827042A CN 112827042 A CN112827042 A CN 112827042A CN 202110003604 A CN202110003604 A CN 202110003604A CN 112827042 A CN112827042 A CN 112827042A
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- Prior art keywords
- oxygen
- pipeline
- treatment
- plug
- pipe
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- 208000019693 Lung disease Diseases 0.000 title claims abstract description 18
- 238000002640 oxygen therapy Methods 0.000 title claims abstract description 16
- 239000003814 drug Substances 0.000 claims abstract description 76
- 239000001301 oxygen Substances 0.000 claims abstract description 50
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 50
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 49
- 230000007423 decrease Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 18
- 210000002345 respiratory system Anatomy 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 239000000443 aerosol Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 206010011224 Cough Diseases 0.000 description 3
- 206010047700 Vomiting Diseases 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000008673 vomiting Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 230000003434 inspiratory effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000003296 saliva Anatomy 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008263 liquid aerosol Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
Abstract
The invention relates to the technical field of oxygen therapy masks, and discloses an oxygen therapy mask suitable for treating lung diseases, which comprises a mask body, wherein a pipeline is arranged on one side of the mask body, a communicating pipe is arranged at the bottom end of the pipeline in a threaded manner, a three-way joint is arranged at the bottom end of the communicating pipe, an oxygen therapy pipe is arranged on one side of the three-way joint, a medicament pipe is arranged at the bottom end of the three-way joint, a plug is arranged in the bottom of the pipeline, a spiral groove is formed in the side wall of the plug, and a spiral channel is formed between the plug and the pipeline. The oxygen therapy face guard of this scheme can still realize the oxygen suppliment when guaranteeing the gaseous medicine that supplies of medicament, makes the oxygen suppliment and use medicine to go on simultaneously and become the reality on the one hand, and on the other hand owing to can supply oxygen when supplying medicine, has reduced severe patient when inhaling medicine, because of the risk that the oxygen caused absolutely, and is further, also owing to the oxygen suppliment that lasts, the patient can ensure comparatively steady state, so also ensured good inhalant treatment.
Description
Technical Field
The invention belongs to the technical field of oxygen therapy masks, and particularly relates to an oxygen therapy mask suitable for treating lung diseases.
Background
The oxygen mask is a device for transferring oxygen from the storage tank to the lung of a human body, and can cover the nose and mouth or the whole face of a user, so that a high-oxygen environment is formed near the mouth and the nose of the user, and an oxygen supply effect is realized.
For some patients, particularly patients with lung diseases, the inhalant mode is required to be adopted for medicine supply while oxygen supply is performed, the existing inhalant medicine supply device and the oxygen inhalation and supply device are of separate structures, and for patients with serious diseases, the existing mode is adopted, so that oxygen cannot be supplemented in time during medicine supply, great risk exists, the oxygen inhalation amount is less, the breathing difficulty of the patients can be caused, and the inhalation effect of the inhalant is greatly reduced.
Therefore, there is a need to design a device capable of supplying both medicine and oxygen to reduce the medical risk and ensure good inhalant therapy for critically ill patients.
Disclosure of Invention
In view of the above situation, the present invention provides an oxygen mask for treating pulmonary diseases, which is a device capable of supplying both drugs and oxygen to reduce the medical risk of patients with serious diseases and ensure good therapeutic effect of inhalants.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an oxygen therapy face guard suitable for lung disease treatment, includes the face guard body, the pipeline is installed to one side of face guard body, and communicating pipe is installed to the bottom screw thread of pipeline, and three way connection is installed to the bottom of communicating pipe, and oxygen therapy pipe is installed to one side of three way connection, and the medicament pipe is installed to three way connection's bottom. In this aspect, the medicament tube is adapted to be connected to an aerosol or medicinal liquid device.
Preferably, a plug is arranged in the bottom of the pipeline, a spiral groove is formed in the side wall of the plug, and a spiral channel is formed between the plug and the pipeline.
Preferably, the width and/or depth of the spiral channel gradually decreases in a bottom-up direction.
Preferably, a plurality of protrusions are arranged at intervals on the lower side of the spiral channel.
Preferably, a three-way channel is formed at the top of the pipeline, one port of the three-way channel is connected with an air outlet pipe, the other port of the three-way channel is connected with a corrugated pipe, the corrugated pipe is connected with a suction nozzle, and the suction nozzle is positioned in the mask body. In the scheme of this application, the suction nozzle shape is adapted with the shape of the mouth of the user. Preferably, the corrugation direction of the corrugated pipe is opposite to the spiral direction of the spiral channel.
Preferably, the corrugated depth of the bellows gradually decreases in the direction from the conduit to the mask body.
Preferably, the corrugated width of the bellows gradually decreases in the direction from the conduit to the mask body.
Preferably, the top of the pipeline is provided with an air outlet pipe, and a one-way filter valve is arranged inside the air outlet pipe.
Preferably, the outlet pipe is of a horn-shaped structure with a larger lower end and a smaller upper end.
Preferably, a one-way valve is further arranged in the channel.
Preferably, the outer wall of the mask body is further fixedly provided with an elastic belt, and the middle part of the elastic belt is sleeved with a rubber sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. the oxygen mask has the advantages that the oxygen supply can be realized while the medicine gas is ensured to supply medicine through the oxygen supply pipe and the medicine pipe, on one hand, the oxygen supply and the medicine application can be realized simultaneously, on the other hand, the oxygen supply can be realized during the medicine supply, the risk of serious patients caused by oxygen interruption during the medicine suction is reduced, and further, the patients can ensure a stable state due to continuous oxygen supply, so that a good inhalant treatment effect is ensured;
2. in the scheme, the spiral channel is formed, so that the inhalant and oxygen can be fully mixed, the discomfort caused to the respiratory tract of a patient by the concentrated inhalant of local inhalation gas is reduced, the adverse effects of cough, vomiting and the like are caused, the medicine supply is not smooth, the deposition amount of the inhalant is reduced, the inhalant is further ensured to be inhaled, and the good treatment effect is further ensured;
3. in the scheme, the spiral channel is formed, so that the inhalant and oxygen can be fully mixed, the discomfort caused to the respiratory tract of a patient by the concentrated inhalant of local inhalation gas is reduced, the adverse effects of cough, vomiting and the like are caused, the medicine supply is not smooth, the deposition amount of the inhalant is reduced, the inhalant is further ensured to be inhaled, and the good treatment effect is further ensured;
4. the width and/or depth of the spiral channel are/is gradually reduced in the direction from bottom to top, by adopting the mode, the rotational flow gas has larger flow velocity and enters the next section of channel at a larger flow velocity, the uniformity of the mixture of the inhalant and the oxygen is further improved, the sedimentation of dust particles or liquid drop particles in the inhalant is also reduced, and the gas has higher flow velocity and can also be beneficial to entering the deep part of the respiratory tract, and the treatment effect is further improved;
5. the lower side of the spiral channel is provided with a plurality of bulges at intervals, the arrangement of the bulges further enables airflow to be disordered, further uniformity of mixing of the medicament and oxygen is further improved, and when heavier large-particle medicament exists, the bulges can also play a role in blocking and smashing, so that the large-particle medicament does not enter a rear-section channel and is continuously impacted by gas to be reduced, discomfort caused by inhalation of the inhalant is further avoided, medicament supply effect is further improved, and medicament waste is avoided;
6. in the scheme of the application, the shape of the suction nozzle is matched with the shape of the mouth of a user, and when medicine is supplied, the mouth of the patient can hold the suction nozzle to suck the medicine, so that the medicine can further enter the deep part of the respiratory tract, and the medicine supply effect is ensured; in the scheme of this application, the face guard body can all wrap including user's oral area and nasal part, and the patient can adopt the oral area to breathe in, the mode that the nasal part exhales to avoid the influence of expired gas to follow-up medicament gas, especially expired moisture probably causes the problem of follow-up gas adhesion at the passageway lateral wall, so, has also improved the medicine supply effect by a wide margin; the corrugated pipe has the side wall in the shape of a spiral groove, so that the mode further increases the uniformity of mixing oxygen and medicament gas;
7. when a patient operates by mistake or the nose is not smooth and the mouth of the patient exhales air, water vapor exhaled by saliva can be gathered in the groove of the corrugated pipe and does not flow into the front channel, so that the adsorption of the medicament is reduced; moreover, the corrugated pipe has good length deformation capability, can also be suitable for the requirements of patients with various facial shapes, and can ensure good matching between the patient and the suction nozzle;
8. when exhaling, the air current is discharged to the external world through the outlet duct, can not enter into the bottom of pipeline, can filter the medicament of exhalation through the one-way strainer valve, make the medicament stay at the top of pipeline, the circulation action, can guarantee good confession medicine effect, avoid causing the pollution to the air, and, in the use later stage, the one-way strainer valve can also be patted, make the medicament of adhesion on it fall down to the face guard in, take off the back when the ripple, can adopt the inspiratory mode of face guard, continue to inhale the medicament, thus, further the waste of medicament has been avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of a nozzle mounting structure of the present invention;
in the figure: 1. a mask body; 2. a pipeline; 3. a communicating pipe; 4. a three-way joint; 5. an oxygen delivery tube; 6. a drug tube; 7. a spiral channel; 8. a three-way passage; 9. a bellows; 10. a suction nozzle; 11. corrugation; 12. a one-way valve; 13. an air outlet pipe; 14. a one-way filter valve; 15. elastic band, 16-plug, 17-bulge.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples, given by figures 1, 2 and 3,
the utility model provides an oxygen therapy face guard suitable for lung disease treatment, includes face guard body 1, pipeline 2 is installed to one side of face guard body 1, and communicating pipe 3 is installed to the bottom screw thread of pipeline 2, and three way connection 4 is installed to the bottom of communicating pipe 3, and oxygen therapy pipe 5 is installed to one side of three way connection 4, and medicament pipe 6 is installed to the bottom of three way connection 4. In this embodiment, the drug tube 6 is used in connection with an aerosol or medicinal liquid aerosol device.
The oxygen therapy face guard of this scheme through setting up oxygen therapy pipe 5 and medicament pipe 6, can still realize the oxygen suppliment when guaranteeing the gaseous medicine that supplies of medicament, makes the oxygen suppliment and use medicine go on simultaneously and become the reality on the one hand, and on the other hand, owing to can supply oxygen when supplying medicine, has reduced severe patient when inhaling medicine, because of the risk that the oxygen caused absolutely, and is further, also because the oxygen suppliment that lasts, the patient can guarantee comparatively steady state, so also guaranteed good inhalant treatment.
In a preferred embodiment, a plug 16 is disposed in the bottom of the pipe 2, a spiral groove is disposed on the sidewall of the plug 16, and a spiral channel 7 is formed between the plug 16 and the pipe 2. The inhalant is usually powder or aerosol, in the scheme, the spiral channel 7 is formed, on one hand, the inhalant and oxygen can be fully mixed, so that the discomfort caused by the local inhalant gas on the respiratory tract of a patient, cough or vomiting and other adverse feelings, which cause unsmooth medicine supply, are reduced, on the other hand, the deposition amount of the inhalant is also reduced, the inhalant is further ensured to be inhaled, and a good treatment effect is further ensured.
In a preferred embodiment, in addition to the above, the width and/or depth of the spiral channel 7 is gradually decreased from bottom to top. Adopt this kind of mode, make this place whirl gas have great velocity of flow to great velocity of flow enters into next section passageway, and further improvement inhalant and oxygen mix's is even, also reduces the subsidence of dust granule or liquid droplet granule in the inhalant, and in addition, gas has higher velocity of flow and can also do benefit to and get into respiratory tract depths, further improves treatment.
In a preferred embodiment, in addition to the above-mentioned embodiment, a plurality of protrusions 17 are further provided at intervals on the lower side of the spiral channel 7. The arrangement of the bulge 17 further makes the air flow be disordered, and further improves the uniformity of the mixture of the medicament and the oxygen. Moreover, when there is heavier large granule medicament, the protrusion 17 can also play the effect of blocking and smashing, so that the large granule medicament does not enter the rear section channel, but continues to be reduced by gas impact, thus further avoiding discomfort caused by inhalation of the inhalant, further improving medicament supply effect and avoiding medicament waste.
In a preferred embodiment, in addition to the above manner, a three-way channel 8 is formed at the top of the pipeline 2, an air outlet pipe 13 is connected to one port of the three-way channel 8, a corrugated pipe 9 is connected to the other port, a suction nozzle 10 is connected to the corrugated pipe 9, and the suction nozzle 10 is located in the mask body 1. In the present embodiment, the shape of the mouthpiece 10 is adapted to the shape of the mouth of the user. When medicine is supplied, the patient can hold the suction nozzle 10 at the mouth to suck the medicine, so that the medicine can further enter the deep part of the respiratory tract, and the medicine supply effect is ensured; in the scheme of the application, the mask body 1 can cover the mouth and the nose of a user, and a patient can inhale through the mouth and exhale through the nose so as to avoid the influence of the exhaled air on the subsequent medicament gas, particularly the problem that the subsequent gas is adhered to the side wall of the channel due to the exhaled moisture, thereby greatly improving the medicament supply effect; moreover, the corrugated pipe 9 has a spiral groove-shaped side wall, so that the uniformity of mixing oxygen and medicament gas is further increased; moreover, when the patient operates by mistake or the nose is not smooth and the mouth of the patient exhales air, the water vapor exhaled by the saliva can be gathered in the groove of the corrugated pipe 9 and does not flow into the front channel, so that the adsorption of the medicament is reduced; moreover, the bellows 9 has good length deformability, and can be adapted to the needs of patients with various facial shapes, and can ensure good fit between the patient and the mouthpiece 10.
In a preferred embodiment, in addition to the above-mentioned embodiment, the bellows 9 is detachably connected to the three-way passage 8. By adopting the mode, when medicine supply is not needed, the corrugated pipe 9 is removed, and the medicine pipe 6 or the medicine aerosol device is blocked, so that conventional oxygen supply can be realized.
In a preferred embodiment, in addition to the above-described embodiment, the corrugation 11 of the bellows 9 is twisted in a direction opposite to the direction of the spiral passage 7. Therefore, when the gas in the channel flows, two different rotation directions exist, and the uniformity of mixing the oxygen and the medicament is further improved.
In a preferred embodiment, in addition to the above, the depth of the corrugation 11 of the corrugated tube 9 is gradually reduced in the direction from the tube 2 to the mask body 1.
In a preferred embodiment, in addition to the above, the width of the corrugation 11 of the corrugated tube 9 is gradually reduced in the direction from the tube 2 to the mask body 1. In this way, the grooves of the bellows 9 actually squeeze the gas when the gas flows, so that the gas flow speed at the side wall is accelerated, and the deposition of the medicament is further reduced.
In a preferred embodiment, in addition to the above embodiment, an outlet pipe 13 is installed at the top of the pipe 2, and a one-way filter valve 14 is installed inside the outlet pipe 13.
In a preferred embodiment, in addition to the above-described embodiment, the outlet pipe 13 has a trumpet-shaped structure with a large lower end and a small upper end. With the structure, the medicament adsorbed on the one-way filter valve can be further conveniently beaten down to
In a preferred embodiment, in addition to the above-described embodiment, a check valve 12 is further provided in the passage. When exhaling, the air current is discharged to the external world through outlet duct 13, can not enter into pipeline 2's bottom, can filter the medicament of exhalation through one-way filter valve 14, make the medicament stay at pipeline 2's top, the circulation action, can guarantee good confession medicine effect, avoid causing the pollution to the air, and, in the use later stage, one-way filter valve 14 can also be patted, make the medicament of adhesion on it fall to the face guard in, after ripple 11 takes off, can adopt the inspiratory mode of face guard, continue to inhale the medicament, so, further the waste of medicament has been avoided.
In a preferred embodiment, in addition to the above-mentioned mode, the one-way filter valve 14 is detachably connected to the air outlet pipe 13. The mask of the present application may then be used as a conventional oxygen mask after removal of the one-way filter valve 14.
In a preferred embodiment, in addition to the above-mentioned mode, an elastic band 15 is further fixedly mounted on the outer wall of the mask body 1, and a rubber sleeve is sleeved on the middle portion of the elastic band 15.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An oxygen therapy face guard suitable for lung disease treatment, includes the face guard body, its characterized in that: the pipeline is installed to one side of face guard body, and communicating pipe is installed to the bottom screw thread of pipeline, and three way connection is installed to the bottom of communicating pipe, and the oxygen therapy pipe is installed to one side of three way connection, and the medicament pipe is installed to three way connection's bottom.
2. An oxygen delivery mask suitable for use in the treatment of pulmonary diseases according to claim 1, wherein: a plug is arranged at the bottom of the pipeline, a spiral groove is formed in the side wall of the plug, and a spiral channel is formed between the plug and the pipeline.
3. An oxygen delivery mask suitable for use in the treatment of pulmonary diseases according to claim 2, wherein: a plug is arranged at the bottom of the pipeline, a spiral groove is formed in the side wall of the plug, and a spiral channel is formed between the plug and the pipeline.
4. An oxygen delivery mask as claimed in claim 3, adapted for treatment of pulmonary diseases, wherein: the width and/or depth of the spiral channel gradually decreases in the direction from bottom to top.
5. An oxygen delivery mask as claimed in claim 4, adapted for treatment of pulmonary diseases, wherein: and a plurality of bulges are arranged at intervals on the lower side of the spiral channel.
6. An oxygen delivery mask suitable for use in the treatment of pulmonary diseases according to any one of claims 1 to 5, wherein: the pipeline still is connected with the bellows, and the one end fixed mounting of bellows has the suction nozzle, the suction nozzle is located this internal face guard.
7. An oxygen delivery mask as claimed in claim 6, adapted for treatment of pulmonary diseases, wherein: the corrugation spiral direction of the corrugated pipe is opposite to the spiral direction of the spiral channel.
8. An oxygen delivery mask suitable for use in the treatment of pulmonary diseases according to claim 7, wherein: the corrugated width and/or depth of the corrugated tube gradually decreases in the direction from the conduit to the mask body.
9. An oxygen delivery mask suitable for use in the treatment of pulmonary diseases according to claim 8, wherein: an air outlet pipe is installed at the top of the pipeline, and a one-way filter valve is installed inside the air outlet pipe.
10. An oxygen delivery mask suitable for use in the treatment of pulmonary diseases according to claim 9, wherein: the outlet duct is the less horn-shaped structure of lower extreme great, upper end, still be provided with the check valve in the passageway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110003604.1A CN112827042A (en) | 2021-01-04 | 2021-01-04 | Oxygen therapy mask suitable for lung disease treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110003604.1A CN112827042A (en) | 2021-01-04 | 2021-01-04 | Oxygen therapy mask suitable for lung disease treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112827042A true CN112827042A (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110003604.1A Withdrawn CN112827042A (en) | 2021-01-04 | 2021-01-04 | Oxygen therapy mask suitable for lung disease treatment |
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| Country | Link |
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| CN (1) | CN112827042A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115957414A (en) * | 2023-03-15 | 2023-04-14 | 四川省医学科学院·四川省人民医院 | Bronchoscope protective mask |
-
2021
- 2021-01-04 CN CN202110003604.1A patent/CN112827042A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115957414A (en) * | 2023-03-15 | 2023-04-14 | 四川省医学科学院·四川省人民医院 | Bronchoscope protective mask |
| CN115957414B (en) * | 2023-03-15 | 2023-06-09 | 四川省医学科学院·四川省人民医院 | Protective mask for bronchoscope |
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Application publication date: 20210525 |
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