CN114569859B - Oxygen mask body and oxygen mask - Google Patents
Oxygen mask body and oxygen mask Download PDFInfo
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- CN114569859B CN114569859B CN202210351657.7A CN202210351657A CN114569859B CN 114569859 B CN114569859 B CN 114569859B CN 202210351657 A CN202210351657 A CN 202210351657A CN 114569859 B CN114569859 B CN 114569859B
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- oxygen
- mask body
- outlet end
- cylinder
- wearer
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- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 379
- 239000001301 oxygen Substances 0.000 title claims abstract description 379
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 376
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 238000009423 ventilation Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 9
- 230000001815 facial effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 21
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000036387 respiratory rate Effects 0.000 abstract description 5
- 210000001331 nose Anatomy 0.000 description 25
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 20
- 229910002092 carbon dioxide Inorganic materials 0.000 description 10
- 239000001569 carbon dioxide Substances 0.000 description 10
- 238000002640 oxygen therapy Methods 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000035565 breathing frequency Effects 0.000 description 4
- 210000003128 head Anatomy 0.000 description 4
- 210000003928 nasal cavity Anatomy 0.000 description 4
- 206010019233 Headaches Diseases 0.000 description 3
- 231100000869 headache Toxicity 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 210000002850 nasal mucosa Anatomy 0.000 description 3
- 206010028740 Nasal dryness Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 208000028399 Critical Illness Diseases 0.000 description 1
- 208000003826 Respiratory Acidosis Diseases 0.000 description 1
- 241000973497 Siphonognathus argyrophanes Species 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
- 230000001419 dependent effect Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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. ventilators; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
-
- 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. ventilators; Tracheal tubes
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
- A61M16/0816—Joints or connectors
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The application relates to the technical field of oxygen masks, and discloses an oxygen mask body and an oxygen mask. In the oxygen mask body, the air outlet end of the oxygen guide cylinder is connected to the mouth-nose area and communicated with the breathing cavity, and the edge of the cylinder mouth of the air outlet end is lower than or flush with the inner surface of the mask wall of the mouth-nose area in the whole circle direction; the volume of the oxygen guiding cylinder is 2000mm 3 ‑16000mm 3 . The oxygen mask body can still ensure effective and stable oxygen inhalation concentration when the respiratory rate and the oxygen flow rate of a wearer change, and can also remarkably reduce the airflow compression sense of oxygen, so that the oxygen can be uniformly diffused in the mouth and nose of the wearer and surrounding areas of the wearer, thereby ensuring the oxygen inhalation treatment effect and improving the comfort level of the wearer.
Description
Technical Field
The application relates to the technical field of oxygen masks, in particular to an oxygen mask body and an oxygen mask.
Background
The existing oxygen mask generally comprises a mask body, wherein an oxygen connector is arranged on the mask body and used for being connected with an oxygen therapy tube, an oxygen guide tube extending out of the breathing cavity is arranged on the inner surface of the breathing cavity in the mask body, an oxygen inlet channel is arranged in the oxygen connector, and one end of the oxygen inlet channel is communicated with the oxygen therapy tube while the other end is communicated with the oxygen guide tube. Thus, when in use, oxygen can enter the breathing cavity through the oxygen inlet channel in the oxygen joint and the oxygen guide cylinder in the breathing cavity in sequence so as to be used by a wearer.
However, the inventor has found in practice that in the prior art, the wearer often has a feeling that oxygen flows directly into the mouth and nose area, and a part of sensitive wearer's mouth and nose will have a more obvious uncomfortable feeling of air flow compression, nasal dryness and even headache, which reduces the comfort of the oxygen mask to some extent. Currently, in order to reduce this sense of airflow compression, the healthcare worker typically reduces the oxygen flow rate based on the wearer's feedback, but this will also reduce the oxygen inhalation concentration, which will affect the oxygen inhalation treatment effect to some extent. In addition, the inventor found in practical studies that the existing oxygen mask can cause repeated inhalation of carbon dioxide in practical use, which directly reduces oxygen inhalation effect.
Disclosure of Invention
To solve the above problems, an object of the present application is to provide a new oxygen mask body that can ensure an effective and stable oxygen inhalation concentration when the respiratory rate and the oxygen flow rate of a wearer are changed, and also can significantly reduce the air flow pressure feeling of oxygen, so that oxygen can be uniformly diffused in the nose and mouth of the wearer and the surrounding area thereof, thereby ensuring the oxygen inhalation treatment effect and improving the comfort of the wearer.
In order to achieve the above object, the present application provides an oxygen mask body comprising: a mask body comprising a breathing cavity and an oronasal region configured to correspond to an oronasal portion of a wearer; the face fitting edge is arranged at the peripheral edge of the mask body; the oxygen guide cylinder comprises an air inlet end, an air outlet end and an oxygen transmission channel section positioned between the air inlet end and the air outlet end, wherein the air inlet end is configured to be capable of installing an oxygen connector, the air outlet end is connected to the oronasal region and communicated with the breathing cavity, and the edge of the cylinder opening of the air outlet end is lower than or flush with the inner surface of the mask wall of the oronasal region in the whole circle direction; wherein the volume of the oxygen guide cylinder is 2000mm 3 -16000mm 3 。
In the technical proposal, the volume of the oxygen guiding cylinder is 2000mm 3 -16000mm 3 By such a volume of the oxygen guide tube, it is possible to ensure sufficient oxygen concentration in the oxygen guide tube while reducing the flow rate of oxygen even if the respiratory rate and the flow rate of oxygen occur to the wearerThe oxygen mask body can still ensure effective and stable oxygen inhalation concentration and ensure oxygen inhalation treatment effect. At the same time, because the edge of the nozzle of the air outlet end is lower than or level with the inner surface of the mask wall of the mouth-nose area in the whole circle direction, the oxygen flowing at the peripheral area in the oxygen guide cylinder is allowed to continuously flow to the periphery along the inner surface of the mask wall of the mouth-nose area at the edge of the nozzle of the air outlet end so as to be diffused. In practical use, oxygen enters the oxygen guide cylinder through the oxygen connector and flows along the oxygen guide cylinder, and when oxygen in the peripheral area in the oxygen guide cylinder flows to the cylinder mouth edge of the air outlet end along the oxygen guide cylinder, the oxygen is diffused all around and continuously flows along the inner surface of the mask wall of the mouth-nose area to be diffused, and finally an oxygen ring which basically surrounds the mouth-nose area of a wearer is formed, so that the oxygen flow intensity of the oxygen which directly flows to the mouth-nose area of the wearer can be effectively weakened, the air flow pressing sense of the oxygen can be obviously reduced, the oxygen can be uniformly diffused in the mouth-nose area and the peripheral area of the wearer, and the use comfort of the wearer is improved.
In some embodiments, the nozzle area of the air outlet end is 200mm 2 -1200 mm 2 。
Preferably, the nozzle area of the air outlet end is 240mm 2 -1120mm 2 The volume of the oxygen guide cylinder is 2200mm 3 -15000mm 3 。
Further preferably, the nozzle area of the air outlet end is 300mm 2 -1000mm 2 The volume of the oxygen guide cylinder is 3000mm 3 -13000mm 3 。
More preferably, the nozzle area of the air outlet end is 400mm 2 -650mm 2 The volume of the oxygen guide cylinder is 4100mm 3 -7700mm 3 。
In some embodiments, assuming that a plane perpendicular to the central axis of the oxygen guiding cylinder is a 0 ° reference plane, in the height direction of the mask body, an included angle is formed between a connecting line between the central points of the upper side port edge and the lower side port edge of the opposite port edge of the air outlet end and the 0 ° reference plane, and the degree a of the included angle is: -45 a is not less than 45.
Preferably, the degree a is: -a is more than or equal to 30 and less than or equal to 30.
Further preferably, the degree a is: -a is more than or equal to 20 and less than or equal to 20.
More preferably, the degree a is: -a is more than or equal to 10 and less than or equal to 10.
More preferably, the degree a is: a is more than or equal to 4 and less than or equal to 7, or a is more than or equal to-7 and less than or equal to-4.
In some embodiments, a nose avoiding opening is formed in a nose corresponding region of the mask body for corresponding to a nose of a wearer, the nose avoiding opening extending to or maintaining a preset distance from the upper side mouth edge.
In some embodiments, the cross-sectional shape of the oxygen guiding cylinder is polygonal, elliptical or circular, or the cross-sectional shape of the oxygen guiding cylinder comprises a protruding section protruding radially inward of the oxygen guiding cylinder.
In some embodiments, the cross-sectional dimension of at least a portion of the barrel section of the oxygen guiding barrel diverges in a direction from the inlet end to the outlet end.
In some embodiments, the mask body is provided with a ventilation structure in a transition region between the oronasal region and the facial fitting edge, the ventilation structure comprising a plurality of open openings spaced apart in a circumferential direction of the mask body, the plurality of open openings being sized such that a portion of the transition region between adjacent open openings forms a connecting strip having reinforcing ribs formed on an inner surface thereof that extend between the oxygen guide tube and the facial fitting edge.
In addition, the application also provides an oxygen mask, which comprises an oxygen connector and the oxygen mask body, wherein the oxygen connector comprises a connector and a baffle cover, the connector comprises an oxygen inlet channel, the baffle cover comprises a baffle surface, the baffle cover is connected to the outlet of the oxygen inlet channel, and the baffle surface faces to the outlet of the oxygen inlet channel; the connector can be rotatably arranged on the air inlet end, and the outlet of the air inlet channel and the baffle cover are positioned in the oxygen guide cylinder.
In the oxygen mask, since the baffle cover of the oxygen connector is provided with the baffle surface, the baffle cover is connected to the outlet of the oxygen inlet channel and faces the outlet of the oxygen inlet channel, and the outlet of the oxygen inlet channel and the baffle cover are positioned in the oxygen guide cylinder, after the oxygen flow flowing out of the outlet of the oxygen inlet channel contacts the baffle surface, the baffle surface can diffuse the oxygen flow to the periphery by utilizing the self baffle surface to weaken the strength of the oxygen flow, so that the oxygen flow flows into the oxygen guide cylinder from the periphery of the baffle surface and mainly flows forwards in the periphery area of the oxygen guide cylinder. Thus, as described above, the oxygen mask can ensure an effective and stable oxygen inhalation concentration when the respiratory rate and the oxygen flow rate of the wearer are varied, and can also significantly reduce the air flow pressure of oxygen, so that oxygen can be uniformly diffused in the mouth and nose of the wearer and the surrounding area thereof, thereby ensuring the oxygen inhalation treatment effect and improving the comfort of the wearer.
Finally, the application provides an oxygen therapy device comprising an oxygen supply device, an oxygen therapy tube and an oxygen mask as described in any of the above, wherein the oxygen supply device is communicated with the oxygen inlet channel through the oxygen therapy tube.
Drawings
Fig. 1 is a schematic perspective view of an oxygen mask body according to one embodiment of the present application.
Fig. 2 is a schematic perspective view of another view of the oxygen mask body of fig. 1.
Fig. 3 is a schematic top view of the oxygen mask body of fig. 2 from the respiratory cavity.
Fig. 4 is a schematic side view (front view) of the oxygen mask body of fig. 1.
Fig. 5 is a schematic view of an included angle a of an oxygen mask body provided in accordance with an embodiment of the present application.
Fig. 6 is a schematic view of an included angle a of another oxygen mask body provided in accordance with an embodiment of the present application.
Fig. 7 is a schematic perspective view of one view of another oxygen mask body provided in accordance with one embodiment of the present application.
Fig. 8 is a schematic perspective view of another view of the oxygen mask body of fig. 7.
Fig. 9 is a schematic perspective view of a view of yet another oxygen mask body provided in accordance with an embodiment of the present application.
Fig. 10 is a schematic perspective view of another view of the oxygen mask body of fig. 9.
Fig. 11 is a schematic perspective view of an oxygen fitting in an oxygen mask according to an embodiment of the present application.
Fig. 12 is a schematic perspective view of another view of the oxygen fitting of fig. 11.
Description of the reference numerals
The face mask comprises a 1-mask body, a 2-face fitting edge, a 3-oxygen guide tube, a 4-air inlet end, a 5-air outlet end, a 6-oxygen transmission channel section, a 7-oxygen connector, an 8-tube opening edge, a 9-mask wall inner surface, a 10-nose corresponding area, an 11-upper side opening edge, a 12-lower side opening edge, a 13-protruding section, a 14-open mouth, a 15-connecting strip, a 16-reinforcing rib, a 17-connecting rod, an 18-oxygen mask body, a 19-connector, a 20-baffle cover, a 21-oxygen inlet channel, a 22-baffle surface and a 23-mounting hole.
Detailed Description
In the following detailed description of the embodiments, reference is made to the accompanying drawings, which form a part hereof. The accompanying drawings show, by way of illustration, specific embodiments in which the application may be practiced. The embodiments shown are not intended to be exhaustive of all embodiments according to the application. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present application. For the drawings, directional terms, such as "lower", "upper", "left", "right", etc., are used with reference to the orientation of the drawings as described. These directional terms are used for purposes of illustration and not limitation, as the components of embodiments of the present application can be implemented in a variety of orientations. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present application is defined by the appended claims.
Referring to fig. 1-4, it is an object of the present application to provide an oxygen mask body 18, the oxygen mask body 18 comprising a mask body 1, a face-fitting edge 2 and an oxygen-guiding tube 3, wherein the mask body 1 comprises a breathing cavity and an oronasal region configured to correspond to the oronasal region of a wearer, the face-fitting edge 2 being provided at the peripheral edge of the mask body 1 to fit the facial contours of the wearer in use, the oxygen-guiding tube 3 comprising an inlet end 4, an outlet end 5 and an oxygen-delivering channel section 6 between the inlet end 4 and the outlet end 5, the inlet end 4 being configured to be able to mount an oxygen fitting 7, the outlet end 5 being connected to the oronasal region and communicating with the breathing cavity, the mouth rim 8 of the outlet end 5 being lower than or flush with the mask wall inner surface 9 of the oronasal region in the full circle; wherein the volume of the oxygen guiding cylinder 3 is 2000mm 3 -16000mm 3 。
In the oxygen mask body, the thickness of the wall of the oxygen guiding tube 3 is relatively small and is ignored, and the volume of the oxygen guiding tube 3 is the volume of the oxygen guiding tube 3.
In the oxygen mask body 18, since the volume of the oxygen guiding cylinder 3 is 2000mm 3 -16000mm 3 Through such oxygen guiding cylinder volume, can be in the time of slowing down the oxygen velocity of flow, make the oxygen concentration in the oxygen guiding cylinder rise to the time that effective concentration required for be shorter, inhale oxygen concentration level and maintain stable, oxygen concentration is sufficient, even if the breathing rate and the oxygen velocity of flow of wearer change, this oxygen mask body 18 still can ensure effective stable oxygen uptake concentration, ensures oxygen uptake treatment effect. At the same time, since the nozzle rim of the outlet end 5 is lower than or flush with the mask wall inner surface 9 of the oronasal region in the full circle direction, this allows oxygen flowing at the peripheral region within the oxygen guide tube 3 to continue to flow all around along the mask wall inner surface of the oronasal region at the nozzle rim of the outlet end 5 to diffuse. Thus, in actual use, the oxygen mask body 18 allows oxygen to enter the oxygen guiding cylinder 3 through the oxygen joint and flow along the oxygen guiding cylinder 3, and oxygen in the peripheral area inside the oxygen guiding cylinder 3 follows the oxygen guiding cylinderWhen the oxygen cylinder 3 flows to the edge of the cylinder mouth of the air outlet end 5, the oxygen cylinder is diffused all around and flows along the inner surface 9 of the mask wall of the mouth-nose area to be diffused, and finally an oxygen ring which basically surrounds the mouth-nose area of a wearer is formed, so that the oxygen flow intensity of oxygen which directly flows to the mouth-nose area of the wearer can be effectively weakened, the air flow pressing sense of oxygen can be obviously reduced, the oxygen can be uniformly diffused in the mouth-nose area and the surrounding area of the wearer, discomfort such as nasal cavity dryness and headache can be avoided, and the comfort of the use of the wearer can be improved.
In addition, the oxygen mask body 18 of the present application is also of significant clinical significance for reducing the intensity of oxygen flow directly to the oral-nasal area of the wearer. Because the nasal mucosa of the human body can be continuously split to moisten inhaled air during breathing, the nasal cavity cannot be dried. The excessive oxygen flow intensity directly flowing to the oral-nasal area of the wearer can directly take away a large amount of nasal mucosa moisture during inhalation, so that the nasal cavity of the wearer is uncomfortable to dry. The oxygen mask body 18 of the present application can effectively weaken the intensity of oxygen flow directly flowing to the oral-nasal area of the wearer, and can remarkably reduce the air flow compression feeling of oxygen, so that the direct taking away of moisture secreted by nasal mucosa can be avoided objectively, so that good mucosal moisture is always maintained in the nasal cavity of the wearer to moisten inhaled air, discomfort such as nasal dryness and headache can be avoided, and the therapeutic comfort is improved.
In addition, the oxygen mask body 18 of the present application is also very beneficial for the rapid removal of carbon dioxide exhaled by the wearer, avoiding carbon dioxide retention within the oxygen mask body. In existing oxygen masks, there are a number of residence areas within the mask body such that a portion of the carbon dioxide exhaled by the patient will enter and remain in these residence areas without being readily expelled, which can directly result in repeated inhalation of carbon dioxide by the patient upon inhalation of the patient, which is particularly disadvantageous to patients, particularly critically ill patients. Because repeated inhalation of carbon dioxide can directly lead to an increase in heart rate and an increase in respiratory rate, for some patients suffering from serious illness, carbon dioxide retention can also be caused, so that the environment in the human body is disturbed, the PH value of blood is influenced, and respiratory acidosis can be generated, so that treatment is influenced. In the oxygen mask body 18 of the present application, however, because the nozzle edge of the outlet end is lower than or flush with the inner surface of the mask wall in the mouth-nose region in the full circle direction, the carbon dioxide retention area in the mask body can be completely avoided, and the carbon dioxide exhaled by the wearer cannot be retained, which can completely avoid repeated inhalation of carbon dioxide, thus having more important clinical treatment effects, especially for critical patients.
In addition, in order to further improve the stability of the oxygen inhalation concentration and ensure the oxygen inhalation treatment effect, in some embodiments, the nozzle area of the air outlet end 5 is 200mm 2 -1200mm 2 . By such a nozzle area, an appropriate oxygen area can be formed at the wearer's mouth-nose area while incorporating a volume of 2000mm of the oxygen guide cylinder 3 3 -16000mm 3 The time required for the oxygen concentration in the oxygen guide tube to rise to the effective concentration can be further shortened, the level of the sucked oxygen concentration is kept stable, and the oxygen concentration is sufficient, so that even if the breathing frequency and the oxygen flow rate of a wearer change, the oxygen mask body 18 can still ensure the effective and stable oxygen absorption concentration and ensure the oxygen absorption treatment effect.
In addition, in order to further improve the stability of the oxygen absorption concentration, ensure the oxygen absorption treatment effect, ensure the time required for the oxygen concentration in the oxygen guiding cylinder to rise to the effective concentration, maintain the level of the oxygen absorption concentration, and the maximum level of the oxygen absorption concentration reaches the better effect, in some embodiments, the area of the cylinder mouth of the air outlet end 5 is 240mm 2 -1120mm 2 The volume of the oxygen guiding cylinder 3 is 2200mm 3 -15000mm 3 . In order to maintain the inhaled oxygen concentration level for the time required for the oxygen concentration in the oxygen guide cylinder to rise to the effective concentration, the maximum inhaled oxygen concentration level is more effective, and in some preferred embodiments, the nozzle area of the air outlet end 5 is 300mm 2 -1000mm 2 The volume of the oxygen guiding cylinder 3 is 3000mm 3 -13000mm 3 . In order to maintain the inhaled oxygen concentration level for the time required for the oxygen concentration within the oxygen guide cylinder to rise to the effective concentration, the maximum inhaled oxygen concentration level is optimally achieved, in some further preferred embodimentsThe area of the nozzle of the air outlet end 5 is 400mm 2 -650mm 2 The volume of the oxygen guiding cylinder 3 is 4100mm 3 -7700mm 3 。
In addition, here, the length of the sheet was 200mm 2 -1200mm 2 The nozzle area of the outlet port 5 may be any value, for example, see the specific values in table 1 below (the area size is from left to right in the first row, then from left to right in the second row, then from left to right in the third row).
TABLE 1
In addition, the length of the tube is 2000mm 3 -16000mm 3 The volume of the oxygen guiding cylinder 3 can be any value, for example, see the specific values in table 2 below (the volume is from left to right in the first row, then from left to right in the second row, then from left to right in the third row).
TABLE 2
In addition, referring to fig. 5 and 6, in some embodiments, assuming that a plane perpendicular to the central axis of the oxygen guiding tube 3 is a 0 ° reference plane P, in a height direction of the mask body 1 (for example, a double arrow direction shown in fig. 1, in addition, the height direction refers to a vertical direction of a face when the wearer wears the oxygen mask body 18), a line L between a central point of the upper port edge 11 and the lower port edge 12 opposite to the port edge 8 of the air outlet end 5 forms an angle a with the 0 ° reference plane P, and a degree of the angle a is: -45 a is not less than 45. That is, the included angle a ranges from 45 ° to 45 ° from the 0 ° reference plane, and thus ranges from 45 ° -45 °. Alternatively, the line L may extend horizontally. The positive and negative values of the angle range of the included angle A are considered that the oxygen mask body can be worn in an up-and-down rotation way.
The degree a of the included angle A formed between the connecting line L between the central points of the upper side port edge 11 and the lower side port edge 12 opposite to the port edge of the air outlet end 5 of the oxygen guide cylinder 3 and the 0-degree reference plane P is as follows: -45 a is less than or equal to 45, and through the included angle A, a proper oxygen diffusion interval is formed between the edge of the cylinder mouth of the air outlet end and the mouth and nose area of a wearer, and the volume of the oxygen guide cylinder 3 is combined with 2000mm 3 -16000mm 3 The time required for the oxygen concentration in the oxygen guide cylinder to rise to the effective concentration can be shortened, the level of the inhaled oxygen concentration is kept stable, the oxygen concentration is sufficient, and even if the breathing frequency and the oxygen flow rate of a wearer change, the oxygen mask body 18 can still ensure the effective and stable oxygen inhalation concentration and ensure the oxygen inhalation treatment effect. At the same time, since the nozzle rim of the outlet port 5 is lower than or flush with the mask wall inner surface 9 of the oronasal region in the full circle direction, this allows oxygen flowing at the peripheral region within the oxygen guiding cylinder 3 to continue to flow all around along the mask wall inner surface of the oronasal region at the nozzle rim of the outlet port 5 to diffuse and fill the oxygen diffusion space. Thus, in actual use, the oxygen mask body 18 enters the oxygen guiding tube 3 through the oxygen connector and flows along the oxygen guiding tube 3, and when the oxygen in the peripheral area in the oxygen guiding tube 3 flows to the edge of the tube mouth of the air outlet end 5 along the oxygen guiding tube 3, the oxygen in the peripheral area is diffused and flows along the inner surface 9 of the mask wall of the mouth-nose area to be diffused, and finally an oxygen ring which basically surrounds the mouth-nose area of the wearer is formed, so that the intensity of the oxygen flow which directly flows to the mouth-nose area of the wearer can be effectively weakened, the air flow compression sense of the oxygen can be obviously reduced, the oxygen can be uniformly diffused in the mouth-nose area and the surrounding area of the wearer, and the comfort of the wearer in use can be improved.
For example, in one embodiment, the outlet end 5 of the oxygen guide cylinder 3 has a cylinder mouth area of 200mm 2 -1200mm 2 The volume of the oxygen guiding cylinder 3 is 2000mm 3 -16000mm 3 And the degree of the included angle A is a DEG, wherein-45 is less than or equal to a and less than or equal to 45, and the oxygen mask body 18 is still provided with the change of the breathing frequency and the oxygen flow velocity of a wearer through the area of the nozzle, the volume of the oxygen guiding cylinder 3 and the included angle ABut can further ensure the effective and stable oxygen inhalation concentration and ensure the oxygen inhalation treatment effect.
In addition, in the prior art, no one studies the oxygen inhalation effect of a patient from the structural relation of the oxygen guide tube and the oxygen mask body. The inventors have made a number of clinical trials after proposing the above inventive concept to confirm the above technical effects. In addition, in order to further increase the oxygen concentration in the oxygen guide tube to the effective concentration time, maintain the inhaled oxygen concentration level, promote the stability of oxygen concentration, ensure oxygen inhalation treatment effect, in some embodiments, degree a is: -a is more than or equal to 30 and less than or equal to 30. To further maintain the inspired oxygen concentration level for the time required to raise the oxygen concentration within the oxygen guide cylinder to an effective concentration, in some preferred embodiments, the degree a is: -a is more than or equal to 20 and less than or equal to 20. In order to maintain the inhaled oxygen concentration level for the time required for the oxygen concentration within the oxygen guide cylinder to rise to an effective concentration, the maximum inhaled oxygen concentration level achieves a more optimal effect, in some further preferred embodiments, the degree a is: -a is more than or equal to 10 and less than or equal to 10. In order to maintain the inhaled oxygen concentration level for the time required for the oxygen concentration within the oxygen guide cylinder to rise to an effective concentration, the maximum inhaled oxygen concentration level achieves an optimal effect, in some further preferred embodiments, the degree a is: a is more than or equal to 4 and less than or equal to 7, or a is more than or equal to-7 and less than or equal to-4. In addition, it should be noted here that the degree a may be any specific value between-45 and 45, for example, a may be 0, 5, 15 or 25.
In addition, referring to fig. 4, in the up-down direction of fig. 4, the top outer contour line of the mask body 1 may extend along the connection line L in the height direction.
In addition, in some embodiments, the angle between the rim inner surface of the nozzle rim and the inner surface of the mask wall may be 180 ° to flush transition, or the angle between the rim inner surface of the nozzle rim and the inner surface of the mask wall may be between 180 ° -270 ° to form a non-flush transition that may allow oxygen in the peripheral region within the oxygen guide tube to diffuse around as it flows along the oxygen guide tube to the nozzle rim of the outlet end and continue to flow along the inner surface of the mask wall in the oronasal region to continue to diffuse.
In other embodiments, in order to promote smoothness of the flow of the gas while adapting to the extended contour of the mask body 1, referring to fig. 2, the rim inner surface of the nozzle rim 8 is smoothly connected with the inner surface of the mask wall in the full circle direction by an arc surface protruding toward the breathing chamber, so that, by the arc surface, oxygen in the peripheral region inside the oxygen guide tube smoothly flows through the arc surface at the nozzle rim 8, smoothly flows onto the inner surface of the mask wall in the oronasal region while changing the direction to diffuse to the periphery, and continues to flow to continue to diffuse. Thus, the arcuate surface between the rim inner surface of the mouthpiece rim 8 and the mask wall inner surface can allow oxygen flow to smoothly flow from the rim inner surface to the mask wall inner surface. Of course, the arc curvature of the arc surface can be specifically selected according to actual requirements.
In addition, referring to fig. 5 and 6, in some embodiments, a nose avoidance opening (not shown) is formed in the nose correspondence section 10 of the mask body 1 for correspondence with the nose of the wearer, the nose avoidance opening extending to the upper side mouth rim 11 or being maintained at a predetermined distance from the upper side mouth rim 11. Thus, the nose of the wearer can be prevented from touching the mask body 1, and wearing comfort is improved. For example, in the oxygen mask body shown in fig. 5, since the nose corresponding region 10 extends in a direction away from the face, the nose corresponding region 10 may not be formed with a nose avoiding opening, or may be formed with a nose avoiding opening. For another example, in the oxygen mask body shown in fig. 6, since the line L is rotated clockwise with respect to the 0 ° reference plane, the nose corresponding region 10 extends in the direction toward the face, and the nose corresponding region 10 may be formed with a nose avoiding opening, but the nose corresponding region 10 may not be formed with a nose avoiding opening.
In addition, in the oxygen mask body 18, the cross-sectional shape of the oxygen guiding tube 3 such as the oxygen therapy passageway section 6 may have various forms, but it should be noted that, regardless of the cross-sectional shape of the oxygen guiding tube 3, it is sufficient that the nozzle area of the outlet end 5 is 150mm 2 -1200 mm 2 And oxygen guiding cylinder3 has a volume of 1500mm 3 -16000mm 3 And (3) obtaining the product. For example, in some embodiments, the cross-sectional shape of the oxygen guiding tube 3 is a polygon, which may be a triangle, a square (refer to fig. 1 and 3), a rectangle, a trapezoid, a pentagon, a hexagon, or the like. For example, in some other embodiments, the oxygen cannula 3 is circular in cross-sectional shape, see fig. 7 and 8. For another example, in some other embodiments, the cross-sectional shape of the oxygen cannula 3 is elliptical. For another example, in some other embodiments, the cross-sectional shape of the oxygen guiding cylinder 3 includes a convex section 13 that protrudes radially toward the inside of the oxygen guiding cylinder, e.g., the cross-sectional shape of the oxygen guiding cylinder 3 is a quincuncial shape or a pentagonal shape (refer to fig. 9 and 10). Of course, the cross-sectional shape of the oxygen guiding cylinder 3 may also be other shapes.
In addition, in some embodiments, the cross-sectional dimension of at least a part of the oxygen guiding tube 3, such as the oxygen therapy passageway section 6, is gradually enlarged in the direction from the air inlet end 4 to the air outlet end 5, so that the oxygen flow rate can be further reduced while the oxygen concentration is ensured, the air flow compression sense is reduced, and the oxygen can be uniformly diffused in the mouth and nose of the wearer and the surrounding area thereof, thereby ensuring the oxygen inhalation treatment effect and improving the comfort of the wearer in use. In addition, in some embodiments, the entire length of the oxygen guiding cylinder 3 in the axial direction diverges in the direction from the air inlet end 4 to the air outlet end 5. In addition, in alternative embodiments, the cross-sectional dimensions of the oxygen cannula 3 may vary in a stepwise manner in the axial direction. In addition, in some embodiments, the oxygen cylinder 3 may be a constant diameter cylinder, that is, the inner diameter of the oxygen cylinder 3 is the same from the inlet end to the outlet end.
In addition, referring to fig. 1, the transition region of the mask body 1 between the oronasal region and the face-engaging edge 2 is provided with a ventilation structure. The ventilation structure may allow the exhaled air of the wearer to be expelled into the external environment and, in addition, allow air from the external environment to enter the breathing chamber, which may allow the wearer to have a feel similar to natural breathing when wearing the oxygen mask body without creating a sense of respiratory urgency.
Of course, the ventilation structure may be of various types, for example, in one type of ventilation structure, the ventilation structure may be a plurality of air holes formed in a portion of the transition region in a concentrated manner, and of course, the number, size and shape of the air holes may be set according to actual requirements. Alternatively, in another type of ventilation structure, referring to fig. 1 and 2, the ventilation structure includes a plurality of open openings 14 arranged at intervals in the circumferential direction of the mask body 1, the plurality of open openings 14 being sized such that portions of the transition region between adjacent open openings 14 are formed as connecting strips 15, and reinforcing ribs 16 extending between the oxygen guiding tube 3 and the face fitting edge 2, for example, extending from the oxygen guiding tube 3 to the face fitting edge 2, are formed on the inner surface of the connecting strips 15. That is, the open openings 14 may have a larger size, and in addition, the number and shape of the open openings 14 may be set according to the need, for example, the number of the open openings 14 may be 3, 4 or 5, the shape may be a circular hole, a square hole or an oval hole, for example, the shape of each open opening 14 may be as shown in fig. 1 and 2. The open mouth 14 may allow the wearer to naturally speak and drink water. For example, the open mouth 14 under the mask body 1 may allow the wearer to drink directly from a drinking cup, or may allow a straw to pass through so that the wearer drinks through the straw.
In addition, in the oxygen mask body 18, the oxygen mask body 18 may be made of soft materials, so that the oxygen mask body 18 may be deformed to adapt to the facial shape changes of different wearers. Alternatively, the oxygen mask body 18 may be made of a hard material, and in this case, the face-fitting edge 3 may have flexibility so as to be more suitable for wearing by different wearers, and the soft face-fitting edge 2 may be adapted to the face shape of different wearers.
Furthermore, it is another object of the present application to provide an oxygen mask comprising an oxygen fitting 7 (refer to fig. 11 and 12) and an oxygen mask body 18 as described in any of the above, wherein the oxygen fitting 7 comprises a connection head 19 and a baffle 20, the connection head 19 comprises an oxygen inlet channel 21, the baffle 20 comprises a baffle surface 22, the baffle surface 22 may be a baffle concave surface or a baffle convex surface, the baffle 20 is connected at the outlet of the oxygen inlet channel 21, the baffle surface 22 faces the outlet of the oxygen inlet channel 21, the connection head 19 is rotatably mounted on the air inlet end 4, for example a section of cylinder of the connection head 19 is rotatably mounted in a mounting hole 23 of the air inlet end 4, and the outlet of the oxygen inlet channel 21 and the baffle 20 are located in the oxygen guiding cylinder 3.
In the oxygen mask, since the baffle 20 of the oxygen joint 7 has the baffle 22, the baffle 20 is connected at the outlet of the oxygen inlet passage 21 and the baffle 22 faces the outlet of the oxygen inlet passage 21, and the outlet of the oxygen inlet passage 21 and the baffle 20 are located in the oxygen guiding tube 3, this can make the oxygen flow flowing out from the outlet of the oxygen inlet passage 21 contact the baffle 22, and after the baffle 22 can diffuse the oxygen flow around by its own baffle shape to weaken the oxygen flow intensity, so that the oxygen flow flows into the oxygen guiding tube 3 from around the baffle and flows forward mainly in the peripheral area of the oxygen guiding tube 3, as described above, the oxygen mask can still ensure an effective stable oxygen absorbing concentration when the breathing frequency and the oxygen flow rate of the wearer change, and can also significantly reduce the air flow pressing feeling of the oxygen, make the oxygen uniformly diffuse in the mouth and nose of the wearer and the peripheral area thereof, thereby ensuring the treatment effect and improving the comfort of the use of the wearer.
In addition, in the oxygen mask, the baffle 20 may have an umbrella shape, or may have a bowl shape, and may have a circular cross-section, or may have a polygonal cross-section. In addition, the baffle concave surface of the baffle cap 20 may not be provided with any baffle plate, and referring to fig. 12, a baffle space is formed between adjacent baffle plates. In this way, after the oxygen flow contacts the concave baffle surface, the oxygen flow is divided into a plurality of smaller oxygen flows which are deflected in the baffle space by a plurality of baffle plates, and the smaller oxygen flows flow along the baffle space to the edge and enter the peripheral area of the oxygen guide cylinder, so that the baffle plates can fully disperse the oxygen flow entering through the oxygen inlet channel so as to further weaken the oxygen flow intensity. In addition, the plurality of baffle plates may be uniformly spaced circumferentially or unevenly distributed.
In addition, in the oxygen mask, the oxygen joint may be of various types. For example, in one type, referring to fig. 11 and 12, a connecting rod 17 may be protruded from a central position of an inner passage of the connector, an annular oxygen inlet passage is formed between an inner surface of the inner passage of the connector and an outer surface of the connecting rod 17, a baffle cover is connected to the protruded end of the connecting rod 17, and a plurality of baffle plates are uniformly provided at circumferential intervals on a baffle concave surface of the baffle cover.
In addition, the connector can be rotatably arranged on the air inlet end of the oxygen guide cylinder, so that a wearer can rotate the connector according to own requirements to adjust the position of the oxygen mask relative to the oxygen therapy tube. For example, when the wearer needs to lie down, the connector can be rotated to adjust the relative position between the oxygen mask and the oxygen therapy tube, thereby improving comfort.
In addition, the present application also provides an oxygen therapy device including an oxygen supply apparatus (not shown), an oxygen supply pipe, and an oxygen mask as described above, wherein the oxygen supply apparatus is communicated with the oxygen inlet passage through the oxygen supply pipe, and the oxygen supply apparatus can supply oxygen flow.
Those skilled in the art will appreciate that the above-described embodiments are exemplary and not limiting. The different technical features presented in the different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art in view of the drawings, the description, and the claims. Any reference signs in the claims shall not be construed as limiting the scope. The presence of certain features in different dependent claims does not imply that these features cannot be combined to advantage.
Claims (14)
1. An oxygen mask body, comprising:
a mask body (1), the mask body (1) comprising a breathing cavity and an oronasal region configured to correspond to an oronasal of a wearer;
a face fitting edge (2), the face fitting edge (2) being provided at the peripheral edge of the mask body (1);
an oxygen guiding cylinder (3), wherein the oxygen guiding cylinder (3) comprises an air inlet end (4), an air outlet end (5) and an oxygen delivery channel section (6) positioned between the air inlet end (4) and the air outlet end (5), the air inlet end (4) is configured to be capable of being provided with an oxygen joint (7), the air outlet end (5) is connected to the oronasal region and is communicated with the breathing cavity, and a cylinder mouth edge (8) of the air outlet end (5) is lower than or flush with the inner surface (9) of the mask wall of the oronasal region in the whole circle direction;
wherein the volume of the oxygen guide cylinder (3) is 2000mm 3 -16000mm 3 The area of the cylinder mouth of the air outlet end (5) is 200mm 2 -1200mm 2 。
2. Oxygen mask body according to claim 1, characterized in that the nozzle area of the outlet end (5) is 240mm 2 -1120mm 2 The volume of the oxygen guide cylinder (3) is 2200mm 3 -15000mm 3 。
3. Oxygen mask body according to claim 2, characterized in that the nozzle area of the outlet end (5) is 300mm 2 -1000mm 2 The volume of the oxygen guide cylinder (3) is
3000mm 3 -13000mm 3 。
4. An oxygen mask body according to claim 3, wherein the nozzle area of the outlet end (5) is 400mm 2 -650mm 2 The volume of the oxygen guide cylinder (3) is
4100mm 3 -7700mm 3 。
5. Oxygen mask body according to any one of claims 1-4, characterized in that assuming a 0 ° reference plane (P) is a plane perpendicular to the central axis of the oxygen guiding cartridge (3), in the height direction of the mask body (1), the angle (a) is formed between the line between the center points of the opposite upper side port edge (11) and lower side port edge (12) of the cartridge port edge (8) of the air outlet port (5) and the 0 ° reference plane (P), the degree a of the angle being: -45 a is not less than 45.
6. The oxygen mask body of claim 5, wherein the degree a is: -a is more than or equal to 30 and less than or equal to 30.
7. The oxygen mask body of claim 6, wherein the degree a is: -a is more than or equal to 20 and less than or equal to 20.
8. The oxygen mask body of claim 7, wherein the degree a is: -a is more than or equal to 10 and less than or equal to 10.
9. The oxygen mask body of claim 8, wherein the degree a is: a is more than or equal to 4 and less than or equal to 7 or less than or equal to-7 and less than or equal to-4.
10. Oxygen mask body according to claim 1, characterized in that the mask body (1) is formed with a nose relief opening on a nose corresponding region (10) for corresponding to the nose of the wearer, which nose relief opening extends to the upper side mouth rim (11) of the nozzle rim (8) or is kept at a preset distance from the upper side mouth rim (11) of the nozzle rim (8).
11. Oxygen mask body according to claim 1, characterized in that the cross-sectional shape of the oxygen guiding cylinder (3) is polygonal, elliptical or circular, or that the cross-sectional shape of the oxygen guiding cylinder (3) comprises protruding sections (13) protruding radially towards the inside of the oxygen guiding cylinder.
12. Oxygen mask body according to claim 1, characterized in that the cross-sectional dimension of at least a part of the barrel section of the oxygen guiding barrel (3) tapers in the direction from the inlet end (4) to the outlet end (5).
13. Oxygen mask body according to claim 1, characterized in that the transition area of the mask body (1) between the oronasal area and the facial abutment edge (2) is provided with a ventilation structure comprising a plurality of open openings (14) arranged at intervals in the circumferential direction of the mask body (1), the plurality of open openings (14) being dimensioned such that the portion of the transition area between adjacent open openings (14) is formed as a connecting strip (15), the connecting strip (15) being formed on its inner surface with stiffening ribs (16) extending between the oxygen guiding cylinder (3) and the facial abutment edge (2).
14. An oxygen mask comprising an oxygen fitting (7) and an oxygen mask body (18) according to any one of claims 1-13, wherein the oxygen fitting (7) comprises a connector (19) and a baffle (20), the connector (19) comprising an oxygen inlet channel (21), the baffle (20) comprising a baffle surface (22), the baffle (20) being connected at the outlet of the oxygen inlet channel (21), the baffle surface (22) being oriented towards the outlet of the oxygen inlet channel (21);
the connector (19) can be rotatably arranged on the air inlet end (4), and the outlet of the air inlet channel (21) and the baffle cover (20) are positioned in the oxygen guide cylinder (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210351657.7A CN114569859B (en) | 2022-04-02 | 2022-04-02 | Oxygen mask body and oxygen mask |
| PCT/CN2022/128086 WO2023072219A1 (en) | 2021-10-28 | 2022-10-27 | Oxygen face mask body and oxygen face mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210351657.7A CN114569859B (en) | 2022-04-02 | 2022-04-02 | Oxygen mask body and oxygen mask |
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| CN114569859A CN114569859A (en) | 2022-06-03 |
| CN114569859B true CN114569859B (en) | 2023-11-03 |
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| CN202210351657.7A Active CN114569859B (en) | 2021-10-28 | 2022-04-02 | Oxygen mask body and oxygen mask |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023072219A1 (en) * | 2021-10-28 | 2023-05-04 | 北京奥臻医疗科技有限公司 | Oxygen face mask body and oxygen face mask |
| CN115999005B (en) * | 2023-03-15 | 2023-08-22 | 杭州超德斯实业有限公司 | Medical oxygen mask |
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| CN114569859A (en) | 2022-06-03 |
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