Oxygen mask body and oxygen mask

Abstract

The present invention relates to the technical field of oxygen masks, and discloses an oxygen mask body and an oxygen mask. The oxygen mask body comprises: a mask body, the mask body comprising a breathing cavity and an oral and nasal region configured to correspond to the wearer's mouth and nose; a facial fitting edge, the facial fitting edge being arranged on the outer peripheral edge of the mask body; an oxygen guide tube, the oxygen guide tube being arranged on the oral and nasal region, the oxygen guide tube comprising an air inlet end, an air outlet end, and an oxygen supply channel section located between the air inlet end and the air outlet end, the air inlet end being configured to be able to install an oxygen connector, and the air outlet end being in communication with the breathing cavity; the volume of the oxygen guide tube is 2000mm 3 ‑16000mm 3 The oxygen mask body can ensure an effective and stable oxygen concentration when the wearer's breathing frequency and oxygen flow rate change, thereby ensuring the oxygen therapy effect.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen masks, in particular to an oxygen mask body and an oxygen mask. Background Art

[0002] Existing oxygen masks typically include a mask body with an oxygen connector for connecting to an oxygen tube. An oxygen guide tube extends into the breathing chamber within the mask body, located on its inner surface. The oxygen connector includes an oxygen inlet channel, one end of which connects to the oxygen tube and the other end to the oxygen guide tube. In this way, during use, oxygen enters the breathing chamber through the oxygen tube, the oxygen inlet channel within the oxygen connector, and the oxygen guide tube within the breathing chamber, where it is then consumed by the wearer.

[0003] However, the applicant's research has revealed that, during actual use, wearers of existing oxygen masks often experience a sensation of oxygen rushing directly into their mouth and nose. Some sensitive wearers experience noticeable discomfort from airflow pressure, as well as nasal dryness and even headaches, which reduces the mask's comfort. Currently, to reduce this pressure, medical staff typically reduce the oxygen flow rate based on wearer feedback. However, this also reduces the oxygen concentration, which can negatively impact the effectiveness of oxygen therapy. Furthermore, the applicant's research has revealed that existing oxygen masks can lead to repeated inhalation of carbon dioxide, directly reducing oxygen absorption. Summary of the Invention

[0004] In order to solve the above technical problems, one object of the present invention is to provide a new oxygen mask body, which can ensure an effective and stable oxygen concentration when the wearer's breathing frequency and oxygen flow rate change, thereby ensuring the oxygen therapy effect.

[0005] In order to achieve the above-mentioned object, the present invention provides an oxygen mask body, which includes: a mask body, the mask body including a breathing cavity and an oral and nasal area configured to correspond to the wearer's mouth and nose; a facial fitting edge, the facial fitting edge being arranged on the peripheral edge of the mask body; an oxygen guide tube, the oxygen guide tube being arranged on the oral and nasal area, the oxygen guide tube including an air inlet end, an air outlet end, and an oxygen supply channel section located between the air inlet end and the air outlet end, the air inlet end being configured to be able to install an oxygen connector and the air outlet end being connected to the breathing cavity; wherein the volume of the oxygen guide tube is 2000mm 3 -16000mm 3 .

[0006] In this technical solution, since the volume of the oxygen-conducting cylinder is 2000mm 3 -16000mm 3Through such an oxygen cylinder volume, the oxygen concentration in the oxygen cylinder can be ensured to be sufficient while slowing down the oxygen flow rate. Even if the wearer's breathing frequency and oxygen flow rate change, the oxygen mask body can still ensure an effective and stable oxygen concentration and ensure the effect of oxygen therapy.

[0007] In some embodiments, the outlet port area is 200 mm 2 -1200mm 2 .

[0008] Preferably, the outlet port area is 240 mm 2 -1120mm 2 The volume of the oxygen-conducting cylinder is 2200mm 3 -15000mm 3 .

[0009] More preferably, the outlet port area is 300 mm 2 -1000mm 2 The volume of the oxygen-conducting cylinder is 3000mm 3 -13000mm 3 .

[0010] More preferably, the outlet port area is 400 mm 2 -650mm 2 The volume of the oxygen-conducting cylinder is 4100mm 3 -7700mm 3 .

[0011] In some embodiments, the cross-sectional shape of the oxygen-conducting cylinder is polygonal, elliptical, or circular, or the cross-sectional shape of the oxygen-conducting cylinder includes a protruding section radially protruding toward the interior of the oxygen-conducting cylinder.

[0012] In some embodiments, the cross-sectional dimensions of at least a portion of the oxygen-conducting cylinder gradually expand in a direction from the gas inlet end to the gas outlet end.

[0013] In some embodiments, a nose avoidance opening is formed on the nose corresponding area of ​​the mask body for corresponding to the wearer's nose, and the nose avoidance opening extends to the edge of the tube opening of the air outlet end or maintains a preset distance from the edge of the tube opening of the air outlet end.

[0014] In some embodiments, a breathable structure is provided in the transition area of ​​the mask body between the mouth and nose area and the face-fitting edge, wherein the breathable structure includes a plurality of open openings spaced apart in the circumferential direction of the mask body, and the dimensions of the plurality of open openings are configured so that a portion of the transition area between adjacent open openings is formed as a connecting strip, and a reinforcing rib extending between the oxygen-conducting cylinder and the face-fitting edge is formed on the inner surface of the connecting strip.

[0015] In addition, the present invention provides an oxygen mask, which includes an oxygen connector and any of the above-described oxygen mask bodies, wherein the oxygen connector includes a connector and a deflector, the connector includes an oxygen inlet channel, the deflector includes a deflection surface, the deflector is connected to the outlet of the oxygen inlet channel, and the deflection surface faces the outlet of the oxygen inlet channel; the connector is rotatably mounted on the air inlet end, and the outlet of the oxygen inlet channel and the deflector are located in the oxygen guide cylinder.

[0016] In this oxygen mask, since the deflector of the oxygen connector has a deflecting surface, the deflector is connected to the outlet of the oxygen inlet channel with the deflecting surface facing the outlet of the oxygen inlet channel, and the outlet of the oxygen inlet channel and the deflector are located within the oxygen guide tube, this allows the oxygen flow flowing out of the outlet of the oxygen inlet channel to contact the deflecting surface. The deflecting surface can use its own deflecting surface shape to diffuse the oxygen flow to the surrounding area to weaken the oxygen flow intensity, so that the oxygen flow flows from the surrounding area of ​​the deflecting surface into the oxygen guide tube and flows forward mainly in the area around the oxygen guide tube. In this way, the oxygen mask can still ensure an effective and stable oxygen inhalation concentration when the wearer's breathing frequency and oxygen flow rate change, and can also significantly reduce the pressure of the oxygen airflow, so that the oxygen can be evenly diffused in the wearer's mouth, nose and surrounding areas, thereby ensuring the oxygen inhalation treatment effect and improving the wearer's comfort.

[0017] Finally, the present invention provides an oxygen therapy device, which includes an oxygen supply device, an oxygen supply tube and any of the above-mentioned oxygen masks, wherein the oxygen supply device is connected to the oxygen inlet channel through the oxygen supply tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of a three-dimensional structure of an oxygen mask body provided in accordance with an embodiment of the present invention.

[0019] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the oxygen mask body from another perspective.

[0020] Figure 3 yes Figure 2 A schematic diagram of the structure of the oxygen mask body viewed from above as viewed from the breathing chamber.

[0021] Figure 4 yes Figure 1 A schematic diagram of the side view (front view) structure of an oxygen mask body.

[0022] Figure 5 The present invention is a perspective diagram of another oxygen mask body provided in accordance with an embodiment of the present invention.

[0023] Figure 6 yes Figure 5 A schematic diagram of the three-dimensional structure of the oxygen mask body from another perspective.

[0024] Figure 7 The present invention is a perspective diagram of another oxygen mask body provided in accordance with an embodiment of the present invention.

[0025] Figure 8 yes Figure 7 A schematic diagram of the three-dimensional structure of the oxygen mask body from another perspective.

[0026] Figure 9 The present invention provides a stereoscopic structural diagram of an oxygen joint in an oxygen mask according to an embodiment of the present invention.

[0027] Figure 10 yes Figure 9 Schematic diagram of the three-dimensional structure of the oxygen connector from another perspective.

[0028] Description of Reference Numerals

[0029] 1-mask body, 2-face fitting edge, 3-oxygen guide tube, 4-air inlet end, 5-air outlet end, 6-oxygen supply channel section, 7-oxygen connector, 8-tube mouth edge, 9-mask wall inner surface, 10-nose corresponding area, 11-upper side mouth edge, 12-lower side mouth edge, 13-protruding section, 14-open mouth, 15-connecting strip, 16-reinforcement rib, 17-connecting rod, 18-oxygen mask body, 19-connector, 20-baffle cover, 21-oxygen inlet channel, 22-baffle surface, 23-mounting hole. DETAILED DESCRIPTION

[0030] In the following detailed description of the embodiments, reference is made to the accompanying drawings which form a part of the description. The drawings illustrate specific embodiments in which the present invention is implemented by way of example. The embodiments shown are not intended to be exhaustive of all embodiments according to the present invention. It will 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 terms, such as "bottom", "top", "left", "right", etc., are used with reference to the orientation of the drawings being described. Since the components of the embodiments of the present invention can be implemented in a variety of orientations, these directional terms are for illustrative purposes, not for limiting purposes. Therefore, the following specific embodiments are not intended to be limiting, and the scope of the present invention is defined by the appended claims.

[0031] refer to Figures 1-8 One object of the present invention is to provide an oxygen mask body 18, which includes a mask body 1, a facial fitting edge 2, and an oxygen guide tube 3, wherein the mask body 1 includes a breathing cavity and an oral and nasal area configured to correspond to the wearer's mouth and nose, the facial fitting edge 2 is provided on the outer peripheral edge of the mask body 1 to fit the wearer's facial contour when in use, the oxygen guide tube 3 is provided on the oral and nasal area, the oxygen guide tube 3 includes an air inlet end 4, an air outlet end 5, and an oxygen supply 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 able to install an oxygen connector 7, the air outlet end 5 is connected to the breathing cavity, and the volume of the oxygen guide tube 3 is 2000mm 3 -16000mm 3 .

[0032] In the oxygen mask body 18, since the volume of the oxygen tube 3 is 2000mm 3 -16000mm 3 By using such a volume of oxygen cylinder, the oxygen flow rate can be slowed down while the time required for the oxygen concentration in the oxygen cylinder to rise to the effective concentration is shortened, the inhaled oxygen concentration level is maintained stable, and the oxygen concentration is sufficient. Even if the wearer's breathing frequency and oxygen flow rate change, the oxygen mask body can still ensure an effective and stable oxygen concentration and ensure the effect of oxygen therapy.

[0033] In addition, the oxygen mask body 18 of the present application also has obvious clinical significance for reducing the intensity of the oxygen flow directly flowing to the wearer's mouth and nose area. Because when breathing, the human nasal mucosa will continuously secrete moisture to moisten the inhaled air, so that the nasal cavity will not dry out. Excessive oxygen flow intensity that flows directly to the wearer's mouth and nose area will directly take away a large amount of nasal mucosal moisture during inhalation, causing the wearer's nasal cavity to feel dry and uncomfortable. The oxygen mask body 18 of the present application can effectively reduce the intensity of the oxygen flow that flows directly to the wearer's mouth and nose area, and can significantly reduce the sense of pressure of the oxygen airflow. Therefore, it can objectively avoid directly taking away the moisture secreted by the nasal mucosa, so that the wearer's nasal cavity always maintains good mucosal moisture to moisten the inhaled air, thereby improving the comfort of treatment.

[0034] In addition, it should be noted that, in the oxygen mask body, when the wall thickness of the oxygen conducting tube 3 is relatively thin and can be ignored, the volume of the oxygen conducting tube 3 is the capacity of the oxygen conducting tube 3 .

[0035] In the oxygen mask body 18, in some embodiments, the air outlet end 5 of the oxygen guide tube 3 can protrude from the inner surface 9 of the mask wall in the mouth and nose area by a predetermined distance, and the predetermined distance can be selected according to actual needs.

[0036] Optionally, in some embodiments, the outlet port 5 is connected to the nose and mouth area, and the rim 8 of the outlet port 5 is lower than or flush with the inner surface 9 of the mask wall in the nose and mouth area. This allows oxygen flowing in the surrounding area of ​​the oxygen conduit tube 3 to continue to flow and diffuse along the inner surface of the mask wall in the nose and mouth area at the rim of the outlet port 5. Thus, during actual use of the oxygen mask body 18, oxygen enters the oxygen conduit tube 3 through the oxygen connector and flows along the oxygen conduit tube 3. As the oxygen in the surrounding area of ​​the oxygen conduit tube 3 flows along the oxygen conduit tube 3 to the rim of the outlet port 5, it diffuses and continues to flow along the inner surface 9 of the mask wall in the nose and mouth area, ultimately forming an oxygen circle that substantially surrounds the wearer's nose and mouth area. This effectively reduces the intensity of the oxygen flow directly to the wearer's nose and mouth area, significantly reducing the sense of pressure from the oxygen flow and allowing oxygen to diffuse evenly throughout the wearer's nose and mouth area and surrounding areas, eliminating discomfort such as nasal dryness and headaches, and improving wearer comfort.

[0037] Furthermore, the oxygen mask body 18 of the present application significantly facilitates the rapid expulsion of carbon dioxide exhaled by the wearer, preventing it from accumulating within the mask body. Existing oxygen masks often contain numerous retention zones within the mask body. Consequently, some of the carbon dioxide exhaled by the patient enters and accumulates within these zones, making it difficult to exhale. This leads to re-inhalation of carbon dioxide during inhalation, which is particularly detrimental to patients, particularly those in critical care. This re-inhalation of carbon dioxide can directly increase heart rate and respiratory rate. For some critically ill patients, it can also lead to carbon dioxide retention, disrupting the internal environment, affecting blood pH, and potentially causing respiratory acidosis, which can hinder treatment. In contrast, the oxygen mask body 18 of the present application, because the edge of the outlet port is lower than or flush with the inner surface of the mask wall in the nose and mouth area along its entire circumference, completely avoids the formation of carbon dioxide retention zones within the mask body. Consequently, exhaled carbon dioxide cannot accumulate, completely preventing re-inhalation of carbon dioxide and thus achieving a more significant clinical therapeutic effect, especially for critically ill patients.

[0038] In addition, in the oxygen mask body, in some embodiments, the angle between the inner surface of the edge of the barrel edge and the inner surface of the mask wall can be 180° to form a smooth transition connection, or the angle between the inner surface of the edge of the barrel edge and the inner surface of the mask wall can be between 180° and 270° to form a non-straight transition connection. This straight transition connection or non-straight transition connection can allow the oxygen in the surrounding areas of the oxygen guide cylinder to diffuse around when it flows along the oxygen guide cylinder to the barrel edge at the air outlet end and continue to flow along the inner surface of the mask wall in the mouth and nose area to continue to diffuse.

[0039] In other embodiments, in order to improve the smoothness of air flow while adapting to the extended contour of the mask body 1, reference is made to Figure 2 The inner surface of the rim 8 of the barrel opening smoothly connects to the inner surface of the mask wall along the entire circumference via a curved surface that protrudes toward the breathing chamber. This allows oxygen in the surrounding area of ​​the oxygen-conducting barrel to flow smoothly and steadily through the curved surface at the barrel opening rim 8. While changing direction to diffuse in all directions, it then flows smoothly onto the inner surface of the mask wall in the mouth and nose area, where it continues to flow and diffuse. Therefore, the curved surface between the inner surface of the rim 8 of the barrel opening and the inner surface of the mask wall allows oxygen to flow smoothly from the inner surface of the rim to the inner surface of the mask wall. Of course, the curvature of the curved surface can be specifically selected based on actual needs.

[0040] In addition, in order to further improve the stability of oxygen concentration and ensure the effect of oxygen therapy, in some embodiments, the nozzle area of ​​the gas outlet 5 is 200mm 2 -1200mm 2With such a tube mouth area, a suitable oxygen area can be formed at the wearer's mouth and nose area, and at the same time, the volume of the oxygen tube 3 is 2000mm 3 -16000mm 3 , which can further shorten the time required for the oxygen concentration in the oxygen cylinder to rise to an effective concentration, maintain a stable inhaled oxygen concentration level, and ensure sufficient oxygen concentration. Therefore, even if the wearer's breathing frequency and oxygen flow rate change, the oxygen mask body 18 can still further ensure an effective and stable inhaled oxygen concentration, thereby ensuring the effect of oxygen inhalation therapy.

[0041] In addition, in one embodiment, the area of ​​the outlet end 5 of the oxygen guide tube 3 is 200mm 2 -1200mm 2 , the volume of oxygen tube 3 is 2000mm 3 -16000mm 3 Due to such a tube opening area, the volume of the oxygen guide tube 3, and the tube opening edge of the air outlet end 5 being lower than or flush with the inner surface 9 of the mask wall in the mouth and nose area in the entire circumferential direction, even if the wearer's breathing frequency and oxygen flow rate change, the oxygen mask body 18 can still ensure an effective and stable oxygen inhalation concentration, ensure the oxygen inhalation therapy effect, and allow the oxygen flowing in the surrounding area of ​​the oxygen guide tube 3 to continue to flow around along the inner surface of the mask wall in the mouth and nose area at the tube opening edge of the air outlet end 5 to diffuse. In this way, during actual use of the oxygen mask body 18, oxygen enters the oxygen guide tube 3 through the oxygen connector and flows along the oxygen guide tube 3. When the oxygen in the surrounding area of ​​the oxygen guide tube 3 flows along the oxygen guide tube 3 to the edge of the tube mouth of the air outlet end 5, it diffuses around and continues to flow along the inner surface 9 of the mask wall in the mouth and nose area to diffuse, and finally forms an oxygen circle that basically surrounds the wearer's mouth and nose area. This can effectively weaken the intensity of the oxygen flow directly flowing to the wearer's mouth and nose area, thereby significantly reducing the pressure of the oxygen airflow, allowing the oxygen to be evenly diffused in the wearer's mouth and nose and the surrounding areas, thereby improving the wearer's comfort.

[0042] In addition, in order to further improve the stability of the oxygen concentration and ensure the effect of oxygen therapy, the time required for the oxygen concentration in the oxygen tube to rise to the effective concentration is required to maintain the level of inhaled oxygen concentration and achieve the best effect at the maximum inhaled oxygen concentration level. In some embodiments, the outlet port area of ​​5 is 240mm. 2 -1120mm 2 , the volume of oxygen tube 3 is 2200mm 3 -15000mm 3 In order to increase the oxygen concentration in the oxygen guide tube to the effective concentration time, maintain the inhaled oxygen concentration level, and achieve the best effect at the maximum inhaled oxygen concentration level, in some preferred embodiments, the tube mouth area of ​​the gas outlet end 5 is 300mm 2-1000mm 2 , the volume of oxygen tube 3 is 3000mm 3 -13000mm 3 In order to increase the oxygen concentration in the oxygen guide cylinder to the effective concentration, maintain the inhaled oxygen concentration level, and achieve the best effect at the maximum inhaled oxygen concentration level, in some further preferred embodiments, the outlet port area of ​​​​the gas outlet end 5 is 400mm 2 -650mm 2 , the volume of oxygen tube 3 is 4100mm 3 -7700mm 3 .

[0043] In addition, it should be noted that at 200mm 2 -1200mm 2 The area of ​​the outlet port 5 can be any value, for example, refer to the specific values ​​in the following Table 1 (the area size is the first row from left to right, then the second row from left to right, and then the third row from left to right).

[0044]

[0045] Table 1

[0046] In addition, it should be noted that at 2000mm 3 -16000mm 3 The volume of the oxygen-conducting cylinder 3 can be any value, for example, refer to the specific values ​​in the following Table 2 (the volume size is the first row from left to right, then the second row from left to right, and then the third row from left to right).

[0047]

[0048] Table 2

[0049] In addition, in some embodiments, referring to 1, a nose avoidance opening (not shown) is formed on the nose corresponding area 10 of the mask body 1 for corresponding to the wearer's nose. The nose avoidance opening extends to the tube mouth edge 8 of the air outlet end 5 or maintains a preset distance from the tube mouth edge 8 of the air outlet end 5. For example, the nose avoidance opening extends to the upper side opening edge 11 of the tube mouth edge 8 or maintains a preset distance from the upper side opening edge 11. In this way, the wearer's nose can be prevented from touching the mask body 1, thereby improving wearing comfort. For example, in Figure 1 In the oxygen mask body shown, since the nose corresponding area 10 extends in a direction away from the face, the nose corresponding area 10 may not be formed with a nose avoidance opening, or may be formed with a nose avoidance opening. Figure 4In the oxygen mask body shown, since the connecting line L can rotate clockwise relative to the 0° reference horizontal plane, the nose corresponding area 10 extends in the direction toward the face. In this case, a nose avoidance opening can be formed in the nose corresponding area 10. Of course, the nose corresponding area 10 does not need to be formed with a nose avoidance opening.

[0050] In addition, in the oxygen mask body 18, the cross-sectional shape of the oxygen guide tube 3, such as the oxygen delivery channel section 6, can have various forms. However, it should be noted that no matter what the cross-sectional shape of the oxygen guide tube 3 is, as long as the tube opening area of ​​the gas outlet end 5 is 200mm 2 -1200mm 2 And the volume of oxygen tube 3 is 2000mm 3 -16000mm 3 For example, in some embodiments, no matter what the cross-sectional shape of the oxygen-conducting cylinder 3 is, as long as the cylinder opening area of ​​the gas outlet end 5 is 200mm 2 -1200mm 2 And the volume of oxygen tube 3 is 2000mm 3 -16000mm 3 For example, in some embodiments, the cross-sectional shape of the oxygen-conducting cylinder 3 is a polygon, which can be a triangle or a square (see Figure 1 and Figure 3 ), rectangle, trapezoid, pentagon or hexagon, etc. For example, in some other embodiments, the cross-sectional shape of the oxygen-conducting cylinder 3 is circular, referring to Figure 5 and Figure 6 For another example, in some other embodiments, the cross-sectional shape of the oxygen guide tube 3 is an ellipse. For another example, in some other embodiments, the cross-sectional shape of the oxygen guide tube 3 includes a protruding section 13 radially protruding toward the interior of the oxygen guide tube, for example, the cross-sectional shape of the oxygen guide tube 3 is a plum blossom shape or a pentagonal shape (refer to Figure 7 and Figure 8 ). Of course, the cross-sectional shape of the oxygen-conducting cylinder 3 can also be other shapes.

[0051] In addition, in some embodiments, the cross-sectional dimensions of at least a portion of the oxygen-conducting tube 3, such as the oxygen delivery channel section 6, gradually expand in the direction from the air inlet end 4 to the air outlet end 5. In this way, due to the gradual expansion of the cross-sectional dimensions, the oxygen flow rate can be further slowed down while ensuring the oxygen concentration, reducing the sense of airflow pressure, so that the oxygen can be evenly diffused in the wearer's mouth and nose and surrounding areas, thereby ensuring the oxygen inhalation therapy effect and improving the wearer's comfort. In addition, in some embodiments, the entire length of the oxygen-conducting tube 3 in the axial direction gradually expands in the direction from the air inlet end 4 to the air outlet end 5. In addition, in an optional embodiment, the cross-sectional dimensions of the oxygen-conducting tube 3 can change in a step-by-step manner in the axial direction. In addition, in some embodiments, the oxygen-conducting tube 3 can be a constant-diameter tube, that is, the inner diameter of the air-conducting tube 3 is the same from the air inlet end to the air outlet end.

[0052] In addition, reference Figure 1 The mask body 1 is provided with a breathable structure in the transition area between the nose and mouth area and the face-fitting edge 2. The breathable structure allows the wearer's exhaled gas to be discharged to the outside environment, and also allows air from the outside environment to enter the breathing cavity. This allows the wearer to experience a feeling similar to natural breathing when wearing the oxygen mask body, without any sense of breathing pressure.

[0053] Of course, the breathable structure can be of various types. For example, in one type of breathable structure, the breathable structure can be a plurality of pores gathered and formed on a portion of the transition area. Of course, the number, size and shape of the pores can be set according to actual needs. Alternatively, in another type of breathable structure, reference Figure 1 and Figure 2 The ventilation structure includes a plurality of openings 14 spaced apart in the circumferential direction of the mask body 1. The sizes of the plurality of openings 14 are configured so that the transition region between adjacent openings 14 forms a connecting strip 15. The inner surface of the connecting strip 15 is formed with a reinforcing rib 16 extending between the oxygen-conducting tube 3 and the face-fitting edge 2, for example, extending from the oxygen-conducting tube 3 to the face-fitting edge 2. In other words, the openings 14 can have a relatively large size. In addition, the number and shape of the openings 14 can be set according to needs. For example, the number of the openings 14 can be 3, 4, or 5, and the shape can be a circular hole, a square hole, or an elliptical hole. For example, the shape of each opening 14 can be as follows: Figure 1 、 Figure 2 As shown. The open mouth 14 can allow the wearer to speak or drink water naturally. For example, the open mouth 14 below the mask body 1 can allow the wearer to drink water directly from a cup, or can allow a straw to pass through so that the wearer drinks water through the straw.

[0054] In addition, the oxygen mask body 18 can be made of a soft material so that it can deform to accommodate the varying facial shapes of different wearers. Alternatively, the oxygen mask body 18 can be made of a hard material. In this case, the face-fitting edge 3 can be flexible to better accommodate different wearers, and the flexible face-fitting edge 2 can adapt to the varying facial shapes of different wearers.

[0055] In addition, another object of the present invention is to provide an oxygen mask, which includes an oxygen connector 7 (refer to Figure 9 and Figure 10 ) and any of the above-described oxygen mask bodies 18, wherein the oxygen connector 7 includes a connector 19 and a deflector 20, the connector 19 includes an oxygen inlet channel 21, the deflector 20 includes a deflection surface 22, the deflection surface 22 can be a deflection concave surface or a deflection convex surface, the deflector 20 is connected to the outlet of the oxygen inlet channel 21, the deflection surface 22 faces the outlet of the oxygen inlet channel 21, the connector 19 can be rotatably mounted on the air inlet end 4, for example, a section of a cylinder of the connector 19 can be rotatably mounted in the mounting hole 23 of the air inlet end 4, and the outlet of the oxygen inlet channel 21 and the deflector 20 are located in the oxygen guide cylinder 3.

[0056] In this oxygen mask, since the deflector 20 of the oxygen connector 7 has a deflection surface 22, the deflector 20 is connected to the outlet of the oxygen inlet channel 21 and the deflection surface 22 faces the outlet of the oxygen inlet channel 21, and the outlet of the oxygen inlet channel 21 and the deflector 20 are located in the oxygen guide tube 3. This allows the oxygen flow flowing out of the outlet of the oxygen inlet channel 21 to contact the deflection surface 22. The deflection surface 22 can use its own deflection surface shape to diffuse the oxygen flow to the surroundings to weaken the intensity of the oxygen flow, so that the oxygen flow flows from the surroundings of the deflection surface into the oxygen guide tube 3 and mainly flows forward in the surrounding areas of the oxygen guide tube 3. In this way, as described above, the oxygen mask can still ensure an effective and stable oxygen inhalation concentration when the wearer's breathing frequency and oxygen flow rate change, and can also significantly reduce the pressure of the oxygen airflow, so that the oxygen can be evenly diffused in the wearer's mouth and nose and the surrounding areas, thereby ensuring the oxygen inhalation treatment effect and improving the wearer's comfort.

[0057] In addition, in the oxygen mask, the shape of the deflector 20 can be an umbrella shape, or a bowl shape, and the cross section can be a circular shape, or a polygonal shape. In addition, the deflector concave surface of the deflector 20 may not be provided with a baffle of any shape, as shown in FIG. Figure 10Adjacent baffles form baffle spaces. Thus, upon contacting the concave baffle surface, the oxygen flow is divided by the baffles into multiple smaller oxygen flows, each deflected within the baffle spaces. These smaller oxygen flows flow along the baffle spaces toward the edges and into the surrounding area of ​​the oxygen guide cylinder. Therefore, the baffles can fully disperse the oxygen flow entering through the oxygen inlet channel, further reducing the intensity of the oxygen flow. Furthermore, the baffles can be evenly or unevenly spaced around the circumference.

[0058] In addition, in the oxygen mask, the oxygen connector can have multiple types. For example, in one type, Figure 9 and Figure 10 A connecting rod 17 may extend from the center of the internal channel of the connector, and an annular oxygen inlet channel is formed between the inner surface of the internal channel of the connector and the outer surface of the connecting rod 17. The deflector is connected to the protruding end of the connecting rod 17, and a plurality of baffles are evenly spaced circumferentially on the deflection concave surface of the deflector.

[0059] In addition, the connector is rotatably mounted on the inlet end of the oxygen guide cylinder. This allows the wearer to adjust the position of the oxygen mask relative to the oxygen supply tube as needed. For example, if the wearer needs to lie down, the connector can be rotated to adjust the relative position between the oxygen mask and the oxygen supply tube, thereby improving comfort.

[0060] In addition, the present invention also provides an oxygen therapy device, which includes an oxygen supply device (not shown), an oxygen supply tube and any of the above-mentioned oxygen masks, wherein the oxygen supply device is connected to the oxygen inlet channel through the oxygen supply tube, and the oxygen supply device can provide an oxygen flow.

[0061] Those skilled in the art will appreciate that the above embodiments are illustrative and non-restrictive. Different technical features appearing in different embodiments may be combined to achieve beneficial effects. Based on a study of the drawings, the specification, and the claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. Any reference numerals in the claims should not be construed as limiting the scope of protection. The presence of certain technical features in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. An oxygen mask body, characterized in that: include: A mask body (1), the mask body (1) comprising a breathing cavity and an oronasal region configured to correspond to the wearer's oronasal region; A face fitting edge (2), the face fitting edge (2) being arranged on the outer peripheral edge of the mask body (1); An oxygen guide cylinder (3), the oxygen guide cylinder (3) being arranged on the oral and nasal region, the oxygen guide cylinder (3) comprising 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) being configured to be capable of being installed with an oxygen connector (7), and the air outlet end (5) being in communication with the breathing cavity; Wherein, the volume of the oxygen-conducting cylinder (3) is 2000mm 3 -16000mm 3 The outlet port area of ​​the gas outlet (5) is 200 mm 2 -1200 mm 2 .

2. The oxygen mask body according to claim 1, characterized in that: The outlet port area of ​​the gas outlet (5) is 240 mm 2 -1120mm 2 The volume of the oxygen-conducting cylinder (3) is 2200 mm 3 -15000mm 3 .

3. The oxygen mask body according to claim 2, characterized in that: The outlet port area of ​​the gas outlet (5) is 300 mm 2 -1000mm 2 The volume of the oxygen-conducting cylinder (3) is 3000mm 3 -13000mm 3 .

4. The oxygen mask body according to claim 3, characterized in that: The outlet port area of ​​the gas outlet (5) is 400 mm 2 -650mm 2 The volume of the oxygen-conducting cylinder (3) is 4100 mm 3 -7700mm 3 .

5. The oxygen mask body according to any one of claims 1 to 4, characterized in that: The cross-sectional shape of the oxygen-conducting cylinder (3) is polygonal, elliptical or circular, or the cross-sectional shape of the oxygen-conducting cylinder (3) includes a protruding section (13) that protrudes radially toward the interior of the oxygen-conducting cylinder.

6. The oxygen mask body according to any one of claims 1 to 4, characterized in that: The cross-sectional dimensions of at least a portion of the oxygen-conducting cylinder (3) gradually expand in the direction from the air inlet end (4) to the air outlet end (5).

7. The oxygen mask body according to any one of claims 1 to 4, characterized in that: A nose avoidance opening is formed on a nose corresponding area (10) of the mask body (1) for corresponding to the nose of the wearer, and the nose avoidance opening extends to the edge (8) of the barrel opening of the air outlet end (5) or maintains a preset distance from the edge (8) of the barrel opening of the air outlet end (5).

8. The oxygen mask body according to any one of claims 1 to 4, characterized in that: The transition area of ​​the mask body (1) between the mouth and nose area and the face fitting edge (2) is provided with a breathable structure, the breathable structure comprising a plurality of open openings (14) spaced apart in the circumferential direction of the mask body (1), the dimensions of the plurality of open openings (14) being configured such that a portion of the transition area between 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 fitting edge (2) is formed on the inner surface of the connecting strip (15).

9. An oxygen mask, characterized in that: The invention comprises an oxygen connector (7) and an oxygen mask body (18) according to any one of claims 1 to 8, wherein: The oxygen connector (7) comprises a connector (19) and a deflector (20), wherein the connector (19) comprises an oxygen inlet channel (21), and the deflector (20) comprises a deflection surface (22), wherein the deflector (20) is connected to the outlet of the oxygen inlet channel (21), and the deflection surface (22) faces the outlet of the oxygen inlet channel (21); The connector (19) is rotatably mounted on the air inlet end (4), and the outlet of the oxygen inlet channel (21) and the deflector (20) are located in the oxygen guide cylinder (3).

Images