CN217187372U

CN217187372U - Oxygen mask body and oxygen mask

Info

Publication number: CN217187372U
Application number: CN202220764357.7U
Authority: CN
Inventors: 朱越; 冯军; 朱鹏; 冯威如
Original assignee: Beijing Aozhen Medical Technology Co ltd
Current assignee: Beijing Aozhen Medical Technology Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-08-16
Anticipated expiration: 2032-04-02

Abstract

The utility model relates to an oxygen mask technical field discloses an oxygen mask body and oxygen mask. In the oxygen mask body, an air outlet end of the oxygen guide cylinder is connected to the mouth-nose area and communicated with the breathing cavity, the edge of a cylinder opening of the air outlet end is lower than or parallel to the inner surface of a mask wall of the mouth-nose area in the whole circle direction, an included angle is formed between a connecting line and a 0-degree reference plane, and the degree a of the included angle is-45 to a 45. This oxygen mask body can still ensure effective stable oxygen uptake concentration when wearer's respiratory frequency and oxygen velocity of flow change to can also show the air current oppression sense that reduces oxygen, make oxygen can evenly spread in wearer's mouth nose and its surrounding area, thereby ensure oxygen uptake treatment and promote the comfort level that the wearer used.

Description

Oxygen mask body and oxygen mask

Technical Field

The utility model relates to an oxygen mask technical field specifically relates to an oxygen mask body and oxygen mask.

Background

The existing oxygen mask usually comprises a mask body, an oxygen connector is arranged on the mask body and used for being connected with an oxygen delivery tube, wherein 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 delivery tube while the other end is communicated with the oxygen guide tube. Therefore, when in use, oxygen can enter the breathing cavity through the oxygen inlet channel in the oxygen tube and the oxygen joint and the oxygen guide cylinder in the breathing cavity in sequence so as to be used by a wearer.

However, the applicant researches in practice to find that in the existing oxygen mask, in actual use, a wearer always feels that oxygen is directly splashed on the mouth and nose area, a part of sensitive wearers feel that air flow is pressed and uncomfortable, and nasal cavities are dry and even headache, so that the comfort of the oxygen mask is reduced to a certain extent. Currently, in order to reduce the airflow oppression, medical staff usually reduces the flow rate of oxygen according to the feedback of a wearer, but the oxygen absorption concentration is reduced, and the oxygen absorption treatment effect is influenced to a certain extent. In addition, the applicant has investigated in practice to find that the existing oxygen masks of this kind cause repeated inhalation of carbon dioxide in practical use, which directly reduces the oxygen inhalation effect.

SUMMERY OF THE UTILITY MODEL

For solving the above technical problem, an object of the present invention is to provide a new oxygen mask body, which can ensure effective and stable oxygen inhalation concentration when the respiratory rate and oxygen flow rate of the wearer change, and can also significantly reduce the airflow oppression 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 therapy effect and improving the comfort level of the wearer.

In order to achieve the above object, the utility model provides an oxygen mask body, this oxygen mask body includes: a mask body comprising a breathing cavity and an oronasal region configured to correspond to an oronose of a wearer; a face-engaging edge disposed at a peripheral edge of the mask body; the oxygen guide cylinder comprises an air inlet end, an air outlet end and an oxygen delivery channel section positioned between the air inlet end and the air outlet end, the air inlet end is configured to be capable of being provided with an oxygen connector, the air outlet end is connected to the oral-nasal area and communicated with the breathing cavity, and the edge of a cylinder mouth of the air outlet end is lower than or level with the inner surface of the mask wall of the oral-nasal area in the whole circle direction; wherein, supposing perpendicular to the plane of oxygen guide cylinder central axis is 0 reference plane in the face guard body direction of height, the line between relative upper side mouth border and lower side mouth border central point in the mouth border of the end of giving vent to anger and 0 form the contained angle between the reference plane, wherein, the degree a of contained angle is: a is more than or equal to 45 and less than or equal to 45.

In the technical scheme, the degree a of the included angle between the connecting line between the central points of the upper side opening edge and the lower side opening edge opposite to the cylinder opening edge of the air outlet end and the 0-degree reference plane is as follows: a is more than or equal to-45 and less than or equal to 45, and through the included angle, a proper oxygen diffusion interval can be formed between the edge of the tube mouth of the air outlet end and the oral-nasal area of the wearer, so that even if the respiratory frequency and the oxygen flow rate of the wearer change, the oxygen mask body can still ensure effective and stable oxygen inhalation concentration and ensure the oxygen inhalation treatment effect. Meanwhile, the edge of the tube opening of the air outlet end is lower than or flush with the inner surface of the mask wall of the oral-nasal area in the whole circle direction, so that the oxygen flowing at the peripheral area in the oxygen guide tube is allowed to continuously flow along the inner surface of the mask wall of the oral-nasal area to the periphery at the edge of the tube opening of the air outlet end for diffusion, and the oxygen diffusion interval is filled. Therefore, when the oxygen mask body is used in practice, oxygen enters the oxygen guide cylinder through the oxygen connector and flows along the oxygen guide cylinder, and when oxygen in the peripheral area of the oxygen guide cylinder flows to the cylinder mouth edge of the air outlet end along the oxygen guide cylinder, the oxygen diffuses all around and continues to flow along the inner surface of the mask wall in the oral-nasal area to diffuse, and finally an oxygen ring which basically surrounds the oral-nasal area of a wearer is formed.

Preferably, the degree a is: a is more than or equal to-30 and less than or equal to 30.

More 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.

Most 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 avoidance opening is formed on a nose corresponding region of the mask body to correspond to the nose of the wearer, the nose avoidance opening extending to or at a predetermined distance from the upper oral 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 convex section protruding radially towards the inside of the oxygen guiding cylinder.

In some embodiments, at least a portion of the barrel section of the oxygen conducting barrel has a cross-sectional dimension that gradually expands in a direction from the gas inlet end to the gas outlet end.

In some embodiments, a transition region of the mask body between the oronasal region and the face-engaging edge is provided with an air-permeable structure including a plurality of open openings spaced apart in a circumferential direction of the mask body, the plurality of open openings being sized such that portions of the transition region between adjacent open openings are formed as a connecting strip having a reinforcing rib formed on an inner surface thereof extending between the oxygen guide tube and the face-engaging edge.

In addition, the utility model provides an oxygen mask, this oxygen mask include oxygen joint and above arbitrary the oxygen mask body, wherein, the oxygen joint includes connector and baffling cover, the connector includes into oxygen passageway, the baffling cover includes the baffling face, the baffling cover is connected in the exit of advancing oxygen passageway, the baffling face towards the exit of advancing oxygen passageway; the connector can install with rotating on the inlet end, advance the export of oxygen passageway with the baffling cover is located lead in the oxygen cylinder.

In the oxygen mask, because the baffle cover of the oxygen joint has a baffle surface, the baffle cover is connected at the outlet of the oxygen inlet channel and the baffle surface 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, the baffle surface can make the oxygen flow flowing out from the outlet of the oxygen inlet channel contact the baffle surface, and the baffle surface can utilize the shape of the baffle surface to diffuse the oxygen flow to the periphery so as to weaken the intensity 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 peripheral area of the oxygen guide cylinder. Thus, as described above, the oxygen mask can ensure an effective and stable oxygen inhalation concentration even when the breathing frequency and the oxygen flow rate of the wearer change, and can significantly reduce the feeling of oppression of the flow of oxygen, so that oxygen can be uniformly diffused to the nose and mouth of the wearer and the surrounding area thereof, thereby ensuring the oxygen inhalation therapy effect and improving the comfort of the wearer.

Finally, the utility model provides an oxygen therapy equipment, this oxygen therapy equipment include oxygen supply apparatus, oxygen therapy pipe and above arbitrary the oxygen mask, wherein, oxygen supply apparatus passes through the oxygen therapy pipe with advance the oxygen passageway intercommunication.

Drawings

Fig. 1 is a perspective view of an oxygen mask body according to an embodiment of the present invention.

Fig. 2 is a perspective view of the oxygen mask body of fig. 1 from another perspective.

Fig. 3 is a schematic top view of the oxygen mask body of fig. 2 as viewed from the breathing chamber.

Fig. 4 is a side (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 according to an embodiment of the present invention.

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 invention.

Fig. 7 is a perspective view of another oxygen mask body according to an embodiment of the present invention.

Fig. 8 is a perspective view of the oxygen mask body of fig. 7 from another perspective.

Fig. 9 is a perspective view of another oxygen mask body according to an embodiment of the present invention.

Fig. 10 is a perspective view of the oxygen mask body of fig. 9 from another perspective.

Fig. 11 is a perspective view of an oxygen mask with an oxygen connector according to an embodiment of the present invention.

Fig. 12 is a perspective view of another perspective view of the oxygen connector of fig. 11.

Description of the reference numerals

1-mask body, 2-face joint edge, 3-oxygen guide cylinder, 4-air inlet end, 5-air outlet end, 6-oxygen transmission channel section, 7-oxygen connector, 8-cylinder mouth edge, 9-mask wall inner surface, 10-nose corresponding region, 11-upper side mouth edge, 12-lower side mouth edge, 13-convex section, 14-open mouth, 15-connecting strip, 16-reinforcing rib, 17-connecting rod, 18-oxygen mask body, 19-connecting head, 20-baffle cover, 21-oxygen inlet channel, 22-baffling surface and 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 drawings show, by way of example, specific embodiments in which the invention may be practiced. The embodiments shown are not intended to be exhaustive of all embodiments according to the invention. 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 invention. With respect to the drawings, directional terminology, such as "lower," "upper," "left," "right," etc., is used with reference to the orientation of the drawings as described. Because components of embodiments of the present invention can be implemented in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

Referring to fig. 1-6, an object of the present invention is to provide an oxygen mask body 18, the oxygen mask body 18 comprising a mask body 1, a face attachment edge 2 and an oxygen guiding canister 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 attachment edge 2 is disposed at the peripheral edge of the mask body 1 to fit the facial contours of the wearer when in use, the oxygen guiding canister 3 comprises an air inlet end 4, an air outlet end 5 and an oxygen delivery passage section 6 between the air inlet end 4 and the air outlet end 5, the air inlet end 4 is configured to be able to mount an oxygen connector 7, the air outlet end 5 is connected to the oronasal region and communicates with the breathing cavity, and a canister mouth edge 8 of the air outlet end 5 is lower than or flush with the mask wall inner surface 9 of the oronasal region in a full circle direction; wherein, assuming that a plane perpendicular to the central axis of the oxygen guiding cylinder 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, and the height direction refers to a vertical direction of the face when the wearer wears the oxygen mask body 18), an included angle a is formed between a connecting line L between center points of an upper side edge 11 and a lower side edge 12 of the outlet end 5, which are opposite to the cylinder opening edge 8, and the 0 ° reference plane P, and a degree a of the included angle is: a is more than or equal to 45 and less than or equal to 45. That is, relative to the 0 ° reference plane, the included angle a ranges from 45 ° for counterclockwise rotation of the line L from the 0 ° reference plane P to 45 ° for clockwise rotation of the line L from the 0 ° reference plane P, such that the included angle a ranges from 45 ° -45 °. Alternatively, the connecting line L may extend horizontally. The angle range of the included angle A has positive and negative values, so that the oxygen mask body can be turned up and down to be worn.

In the oxygen mask body 18, the degree a of the included angle a formed between the line L between the center points of the upper opening edge 11 and the lower opening edge 12 opposite to the opening edge of the air outlet end 5 of the oxygen guiding cylinder 3 and the 0 ° reference plane P is: a is more than or equal to-45 and less than or equal to 45, a proper oxygen diffusion interval can be formed between the edge of the tube mouth of the air outlet end and the mouth-nose area of the wearer through the included angle A, the diffusion interval can enable the time required for the oxygen concentration in the oxygen guide tube to rise to the effective concentration to be shorter, the level of the inhaled oxygen concentration is kept stable, the oxygen concentration is sufficient, and the oxygen mask body 18 can still ensure the effective and stable oxygen inhalation concentration and ensure the oxygen inhalation therapy effect even if the breathing frequency and the oxygen flow rate of the wearer change. At the same time, since the nozzle rim of the outlet port 5 is lower than or flush with the inner surface 9 of the mask wall in the oronasal region in the entire circumferential direction, this allows oxygen flowing at the peripheral region in the oxygen guide tube 3 to continue to flow peripherally along the inner surface of the mask wall in the oronasal region at the nozzle rim of the outlet port 5 to be diffused and fill the oxygen diffusion space. Thus, in practical use of the oxygen mask body 18, when oxygen enters the oxygen guiding cylinder 3 through the oxygen connector and flows along the oxygen guiding cylinder 3, and oxygen in the peripheral area in the oxygen guiding cylinder 3 flows to the edge of the cylinder mouth of the air outlet end 5 along the oxygen guiding cylinder 3, the oxygen diffuses peripherally and continues to flow along the inner surface 9 of the mask wall in the oronasal area to diffuse, and finally an oxygen ring substantially surrounding the oronasal area of the wearer is formed, which can effectively weaken the strength of oxygen flow directly flowing to the oronasal area of the wearer, thereby remarkably reducing the air flow oppression of the oxygen, enabling the oxygen to uniformly diffuse in the oronasal area of the wearer and the peripheral area thereof, avoiding discomfort such as nasal cavity dryness and headache, and improving the use comfort of the wearer.

In addition, the oxygen mask body 18 of the present application also has significant clinical significance in attenuating the intensity of oxygen flow directly to the oronasal region of the wearer. Because the nasal mucosa of a human body can continuously secrete water to moisten inhaled air when breathing, the nasal cavity can not be dried. The excessive oxygen flow intensity directly flowing to the mouth and nose area of the wearer can directly take away a large amount of moisture of nasal mucosa when the nasal mask is inhaled, so that the nasal cavity of the wearer is dry and uncomfortable. The utility model provides an oxygen mask body 18 is because can effectively weaken the oxygen flow strength that directly flows to the person's of wearing oronasal region to can show the air current oppression sense that reduces oxygen, consequently, can avoid directly taking away the moisture of nasal cavity mucous membrane secretion objectively, thereby make the person's of wearing nasal cavity remain good mucous membrane moisture all the time and come moist inspiratory air, can not have discomfort such as nasal cavity drying and headache, promote the comfort level of treatment.

In addition, the oxygen mask body 18 of this application still very is favorable to the carbon dioxide of wearer's exhalation to discharge fast, avoids carbon dioxide to remain in the oxygen mask body. In the existing oxygen mask, a plurality of retention areas exist in the mask body, so that a part of carbon dioxide exhaled by a patient can enter and remain in the retention areas and is difficult to discharge, and when the patient inhales, the patient can directly inhale the carbon dioxide repeatedly, which is particularly unfavorable for the patient, especially a critically ill patient. Because repeated inhalation of carbon dioxide directly results in increased heart rate and increased respiratory rate, in some patients with serious diseases, carbon dioxide retention may be caused, so that the internal environment of the human body is disturbed, the pH value of blood is affected, and respiratory acidosis is caused, so that the treatment is affected. In the oxygen mask body 18 of the present application, the edge of the nozzle at the air outlet end is lower than or even with the inner surface of the mask wall in the oral-nasal region in the whole circle direction, so that the occurrence of a carbon dioxide retention area in the mask body can be completely avoided, and the carbon dioxide exhaled by the wearer can not be retained, which can completely avoid the repeated inhalation of carbon dioxide, thereby having more important clinical treatment effect, especially for critically ill patients.

In addition, in the prior art, no one has studied the oxygen inhalation effect of the patient from the structural relationship between the oxygen guide tube and the oxygen mask body. After the inventor proposes the above inventive concept, a large number of clinical tests are carried out to confirm the technical effects. In addition, in order to further maintain the level of the concentration of the inhaled oxygen, improve the stability of the concentration of the inhaled oxygen and ensure the therapeutic effect of the inhaled oxygen by the time required for increasing the concentration of the oxygen in the oxygen guide cylinder to the effective concentration, in some embodiments, the 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 in the oxygen cartridge 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 inspired oxygen concentration level for the time required to bring the oxygen concentration within the oxygen conduit to an effective concentration, the maximum inspired oxygen concentration level achieves a more advantageous effect, in some further preferred embodiments, the number a is: a is more than or equal to 10 and less than or equal to 10. In order to maintain the inspired oxygen concentration level for the time required to bring the oxygen concentration within the oxygen conduit to an effective concentration, the maximum inspired oxygen concentration level is optimally effective, in some further preferred embodiments, the number of degrees 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, and in the range, an oxygen diffusion interval with moderate size can be formed, so that oxygen can continuously flow along the inner surface of the mask wall in the oral-nasal area at the edge of the tube opening of the air outlet end to the periphery so as to be fully filled with the oxygen diffusion interval after diffusion, and the stability of oxygen absorption concentration is higher. In addition, it should be noted 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, the top outer contour line of the mask body 1 may extend along the connecting line L in the longitudinal direction in the up-down direction of fig. 4.

In addition, in the oxygen mask body, in some embodiments, the included angle between the inner surface of the edge of the nozzle edge and the inner surface of the mask wall can be 180 degrees to form a flush transition connection, or the included angle between the inner surface of the edge of the nozzle edge and the inner surface of the mask wall can be 180 degrees to 270 degrees to form a non-flush transition connection, and the flush transition connection or the non-flush transition connection can allow oxygen in the peripheral area in the oxygen guide cylinder to diffuse around when flowing along the oxygen guide cylinder to the nozzle edge of the air outlet end and flow along the inner surface of the mask wall in the oral-nasal area to continue diffusion.

In other embodiments, in order to improve the smoothness of the air flow while adapting to the extended contour of the mask body 1, referring to fig. 2, the inner surface of the rim of the mouthpiece rim 8 is smoothly connected to the inner surface of the mask wall through an arc surface protruding toward the breathing chamber in the entire circumferential direction, so that the oxygen in the peripheral region of the oxygen guide tube smoothly and smoothly flows through the arc surface at the mouthpiece rim 8 by the arc surface, smoothly flows onto the inner surface of the mask wall in the oronasal region while changing the direction to diffuse all around, and continues to flow to continue diffusion. Thus, the arc-shaped surface between the rim inner surface of the nozzle rim 8 and the mask wall inner surface can allow the oxygen flow to smoothly flow from the rim inner surface to the mask wall inner surface. Of course, the curvature of the arc-shaped surface can be specifically selected according to actual requirements.

In addition, in some embodiments, referring to fig. 5 and 6, a nose avoidance opening (not shown) is formed on a nose corresponding region 10 of the mask body 1 for corresponding to the nose of the wearer, and the nose avoidance opening extends to the upper side mouth edge 11 or maintains a predetermined distance from the upper side mouth edge 11. Therefore, the nose of the wearer can be prevented from touching the mask body 1, and the 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 escape opening, or may be formed with a nose escape opening. For another example, in the oxygen mask body shown in fig. 6, since the connecting line L is rotated clockwise with respect to the reference plane of 0 °, the nose corresponding region 10 extends in the direction toward the face, and at this time, a nose avoiding opening may be formed in the nose corresponding region 10, and of course, 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 cylinder 3 such as the oxygen delivery passage section 6 may have various forms, but it should be noted that, regardless of the form of the cross-sectional shape of the oxygen guiding cylinder 3, it is sufficient that the area of the opening of the outlet end 5 is 150mm ² -1200 mm ² And the volume of the oxygen guide cylinder 3 is 1500mm ³ -16000mm ³ And (4) finishing. For example, in some embodiments, the cross-sectional shape of the oxygen guiding cylinder 3 is a polygon, and the polygon 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 guide 3 has a circular cross-sectional shape, referenced to7 and 8. For another example, in some other embodiments, the cross-sectional shape of the oxygen guide 3 is elliptical. For another example, in some other embodiments, the cross-sectional shape of the oxygen guiding cylinder 3 includes a protruding section 13 protruding radially toward the inside of the oxygen guiding cylinder, for example, the cross-sectional shape of the oxygen guiding cylinder 3 is a quincunx 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 cylinder 3, such as the oxygen delivery channel section 6, is gradually enlarged in the direction from the air inlet end 4 to the air outlet end 5, so that the cross-sectional dimension is gradually enlarged, thereby further slowing down the oxygen flow rate while ensuring the oxygen concentration, reducing the sense of oppression of the air flow, enabling the oxygen to be uniformly diffused in the nose and mouth of the wearer and the surrounding area thereof, thereby ensuring the oxygen inhalation therapy effect and improving the comfort level of the wearer. In addition, in some embodiments, the entire length of the oxygen guiding cylinder 3 in the axial direction is gradually expanded in the direction from the gas inlet end 4 to the gas outlet end 5. In addition, in an alternative embodiment, the cross-sectional dimension of the oxygen guide cylinder 3 may be changed in a stepwise manner in the axial direction. In addition, in some embodiments, the oxygen guide cylinder 3 may be an equal diameter cylinder, that is, the inner diameter of the oxygen guide cylinder 3 is the same from the gas inlet end to the gas outlet end.

In addition, referring to fig. 1, the transition area of the mask body 1 between the oronasal area and the face engaging edge 2 is provided with an air permeable structure. The ventilation structure can allow the exhaled air of the wearer to be exhausted to the external environment, and in addition, air in the external environment is also allowed to enter the breathing cavity, so that the wearer can have the feeling similar to natural breathing when wearing the oxygen mask body, and the feeling of respiratory urgency is not generated.

Of course, the air-permeable structure may have various types, for example, in one type of the air-permeable structure, the air-permeable structure may be a plurality of air holes formed in a part of the transition region in a gathering 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 the air permeable structure, referring to fig. 1 and 2, the air permeable 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 are sized such that the transition region between the adjacent open openings 14 is formed as a connecting strip 15, and a reinforcing rib 16 extending between the oxygen guide tube 3 and the face attaching edge 2 is formed on the inner surface of the connecting strip 15, for example, extending from the oxygen guide tube 3 to the face attaching edge 2. That is, the open openings 14 may have a larger size, and the number and shape of the open openings 14 may be set according to the requirement, for example, the number of the open openings 14 may be 3, 4 or 5, and the shape may be a circular hole, a square hole or an elliptical 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 speak and drink naturally. For example, the open opening 14 under the mask body 1 may allow the wearer to drink directly from a cup, or alternatively, may allow a straw to pass through, allowing the wearer to drink through the straw.

In addition, in the oxygen mask body 18, the oxygen mask body 18 may be made of a soft material, so that the oxygen mask body 18 may be deformed to adapt to the face shape change of different wearers. Alternatively, the oxygen mask body 18 may be made of a hard material, and in this case, the face engaging edge 3 may have flexibility so as to be more suitable for being worn by different wearers, and the soft face engaging edge 2 may adapt to the face shape change of different wearers.

Furthermore, another object of the present invention is to provide an oxygen mask, which comprises an oxygen connector 7 (refer to fig. 11 and 12) and an oxygen mask body 18 as described above, wherein the oxygen connector 7 comprises a connector 19 and a baffle 20, the connector 19 comprises an oxygen inlet channel 21, the baffle 20 comprises a baffle surface 22, the baffle surface 22 can 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 connector 19 can be rotatably installed on the air inlet 4, for example, a section of cylinder of the connector 19 can be rotatably installed in the installation hole 23 of the air inlet 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 cover 20 of the oxygen connector 7 has the baffle surface 22, the baffle cover 20 is connected at the outlet of the oxygen inlet passage 21 and the baffle surface 22 faces the outlet of the oxygen inlet passage 21, and the outlet of the oxygen inlet passage 21 and the baffle cover 20 are positioned in the oxygen guiding cylinder 3, which can make the oxygen flow flowing out from the outlet of the oxygen inlet passage 21 contact the baffle surface 22, the baffle surface 22 can diffuse the oxygen flow to the surrounding by using its own baffle surface shape to weaken the oxygen flow strength, so that the oxygen flow flows into the oxygen guiding cylinder 3 from the surrounding of the baffle surface and mainly flows forward in the surrounding area of the oxygen guiding cylinder 3, thus, as mentioned above, the oxygen mask can still ensure effective and stable oxygen inhalation concentration when the breathing frequency and oxygen flow rate of the wearer change, and can also remarkably reduce the flow sense of the oxygen, so that the oxygen can be uniformly diffused in the mouth and the surrounding area of the wearer, thereby ensuring the oxygen inhalation therapy effect and improving the comfort level of the wearer.

In addition, in the oxygen mask, the shape of the baffle shield 20 may be an umbrella shape, or may be a bowl shape, and the cross section may be a circular shape, or may be a polygonal shape. In addition, the concave baffle surface of the baffle housing 20 may not be provided with any baffle plates, and referring to fig. 12, a baffle space is formed between adjacent baffle plates. Thus, after contacting the baffling concave surface, the oxygen flow is divided into a plurality of smaller oxygen flows baffled in the baffling space by the plurality of baffle plates, and the plurality of smaller oxygen flows flow to the edge along the baffling space and enter the peripheral area of the oxygen guide cylinder. In addition, a plurality of baffle plates can be uniformly distributed at circumferential intervals or non-uniformly distributed.

In addition, in the oxygen mask, the oxygen joint may have various types. For example, in one type, referring to fig. 11 and 12, a connecting rod 17 may extend from a central position of the internal passage of the connecting head, an annular oxygen inlet passage is formed between an inner surface of the internal passage of the connecting head and an outer surface of the connecting rod 17, a baffle housing is connected to the extending end of the connecting rod 17, and a plurality of baffle plates are uniformly arranged on a baffle concave surface of the baffle housing at circumferential intervals.

In addition, the connector can be installed on the air inlet end of the oxygen guide tube in a rotating mode, so that a wearer can rotate the connector according to the requirement of the wearer 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 delivery tube, thereby improving comfort.

Furthermore, the utility model also provides an oxygen therapy equipment, this oxygen therapy equipment include oxygen supply apparatus (not shown), oxygen therapy pipe and above arbitrary the oxygen mask, wherein, oxygen supply apparatus passes through oxygen therapy pipe and advances oxygen passageway intercommunication, and oxygen supply apparatus can provide the oxygen stream.

It should be understood by those skilled in the art that the above embodiments are illustrative and not restrictive. Different features which are present in different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art upon studying the drawings, the specification, and the claims. Any reference signs in the claims shall not be construed as limiting the scope. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Claims

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 oronose of a wearer;

a face engaging edge (2), the face engaging edge (2) being provided at an outer peripheral edge of the mask body (1);

the oxygen guide cylinder (3) comprises an air inlet end (4), an air outlet end (5) and an oxygen delivery channel section (6) located 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 connector (7), the air outlet end (5) is connected to the oral-nasal area and communicated with the respiratory 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 oral-nasal area in the whole circle direction;

wherein, supposing that the plane perpendicular to oxygen guide cylinder (3) the central axis is 0 reference plane (P) face mask body (1) direction of height, go out the line (L) between relative upper side mouth border (11) and lower side mouth border (12) central point in tube mouth border (8) of end (5) and form contained angle (A) between 0 reference plane (P), wherein the degree a of contained angle is: a is more than or equal to 45 and less than or equal to 45.

2. The oxygen mask body of claim 1, wherein the degree a is: a is more than or equal to-30 and less than or equal to 30.

3. The oxygen mask body of claim 2, wherein the degree a is: a is more than or equal to-20 and less than or equal to 20.

4. The oxygen mask body of claim 3, wherein the degree a is: a is more than or equal to 10 and less than or equal to 10.

5. The oxygen mask body of claim 4, wherein 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.

6. An oxygen mask body according to claim 1, wherein a nose avoidance opening is formed on a nose corresponding region (10) of the mask body (1) to correspond to the nose of the wearer, the nose avoidance opening extending to the upper side mouth edge (11) or being at a predetermined distance from the upper side mouth edge (11).

7. The oxygen mask body according to claim 1, wherein the cross-sectional shape of the oxygen guiding cylinder (3) is polygonal, oval or circular, or the cross-sectional shape of the oxygen guiding cylinder (3) comprises a convex section (13) protruding radially towards the inside of the oxygen guiding cylinder.

8. The oxygen mask body according to claim 1, wherein at least a portion of the barrel section of the oxygen guiding barrel (3) is of a cross-sectional size that is divergent in a direction from the inlet end (4) to the outlet end (5).

9. The oxygen mask body according to claim 1, wherein a transition region of the mask body (1) between the oronasal region and the face engaging edge (2) is provided with a ventilation structure comprising a plurality of open openings (14) spaced apart in a circumferential direction of the mask body (1), the plurality of open openings (14) being dimensioned such that portions of the transition region between adjacent open openings (14) are formed as connecting strips (15), the connecting strips (15) having reinforcing ribs (16) formed on an inner surface thereof extending between the oxygen guide canister (3) and the face engaging edge (2).

10. An oxygen mask, comprising an oxygen connection (7) and an oxygen mask body (18) according to any one of claims 1 to 9, wherein,

the oxygen connector (7) comprises a connector (19) and a deflection cover (20), the connector (19) comprises an oxygen inlet channel (21), the deflection cover (20) comprises a deflection surface (22), the deflection cover (20) is connected to the outlet of the oxygen inlet channel (21), and the deflection surface (22) faces to the outlet of the oxygen inlet channel (21);

connector (19) can install with rotating on air inlet end (4), advance the export of oxygen passageway (21) with baffle cover (20) are located lead in oxygen cylinder (3).