Disposable oxygen feeder

Abstract

The utility model discloses a disposable oxygen feeder, which relates to the technical field of medical instruments and comprises an air inlet pipe, and a first pipe joint is arranged at the outlet end of the air inlet pipe. The device further comprises a mouth air supply device and a nose air supply device. The nozzle air supply device comprises a device body and a second pipe connector, an air inlet channel and an air outlet channel are formed in the device body, an inlet of the air inlet channel is communicated with the second pipe connector, and an outlet of the air inlet channel and an inlet of the air outlet channel are both located at the front end of the device body. The second pipe joint and an outlet of the air outlet channel are positioned at the rear end or the side surface of the device main body; the nasal air supply device comprises a nasal tube and a third tube joint communicated with the nasal tube; the second pipe joint and the third pipe joint can be detachably connected to the first pipe joint. The structural design of the scheme is used for optimizing the use cost problem, the cleaning problem and the expiration convenience problem of the oxygen feeder.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a disposable oxygen dispenser. Background Art

[0002] In routine hospital treatment, oxygen inhalation usually occurs in patients with respiratory diseases, heart diseases, diabetes, and brain diseases. For patients who can complete oxygen inhalation independently, disposable oxygen dispensers are usually used to assist oxygen inhalation. In order to avoid discomfort caused by long-term oxygen inhalation (long-term oxygen inhalation through the mouth may cause pharyngeal discomfort and other problems), oxygen inhalation is generally completed through nasal inhalation. For oxygen dispensers, such patients usually use nasal cannulas to administer oxygen through the nostrils. For patients with nasal congestion, oxygen inhalation is completed through the mouth.

[0003] In the prior art, in order to solve the problem of oral and nasal oxygen inhalation, oxygen supply devices that can match oral and nasal oxygen supply at the same time are generally in the form of masks. The oxygen supply mask of this type of oxygen supply device can cover the mouth and nose at the same time. The oxygen inhaler can choose oral oxygen inhalation or nostril oxygen inhalation according to his own breathing characteristics. Compared with the disposable oral and nasal oxygen supply tube provided by patent application number CN202021256882.5, this form has the problem of relatively high use cost. The disposable oral and nasal oxygen supply tube provided by patent application number CN202021256882.5 can be used as an oral oxygen supply device and a nasal oxygen supply device, but when it is first used as a nasal oxygen supply device and then used as an oral oxygen supply device, the nasal suction tube may need to be cleaned when connecting the mouth suction tube, which has the problem of relatively troublesome use. In addition, although the tube-type oxygen supply device in the prior art can provide mouth oxygen supply, it is not equipped with a channel for exhalation, and the user has certain discomfort when using it. Utility Model Content

[0004] The utility model provides a disposable oxygen dispenser, and the specific structural design is used to optimize the use cost problem, cleaning problem and exhalation convenience problem of the oxygen dispenser.

[0005] In view of the above problems, the utility model provides a disposable oxygen feeder to solve the problems through the following technical points: a disposable oxygen feeder, comprising an air inlet pipe, wherein the outlet end of the air inlet pipe is provided with a first pipe joint;

[0006] Also included are a mouth air supply device and a nasal air supply device that are independent of each other;

[0007] The nozzle air supply device comprises a device body and a second pipe joint connected to the device body, an air inlet channel and an air outlet channel are arranged on the device body, the inlet of the air inlet channel is communicated with the second pipe joint, the outlet of the air inlet channel and the inlet of the air outlet channel are both located at the front end of the device body, the second pipe joint and the outlet of the air outlet channel are located at the rear end or side of the device body, a one-way valve is arranged on the air outlet channel, and the conduction direction of the one-way valve is: the airflow can enter from the inlet of the air outlet channel and flow out from the outlet of the air outlet channel;

[0008] The nasal air supply device includes a nasal tube and a third tube joint communicating with the nasal tube;

[0009] The second pipe joint and the third pipe joint can both be detachably connected to the first pipe joint.

[0010] When the oxygen supply device is in use, the inlet end of the air inlet pipe is used to be connected to the oxygen tube or oxygen cylinder. When the oxygen inhaler can breathe oxygen through the nostrils, the third pipe joint on the nasal air supply device is connected to the first pipe joint, and the oxygen inhaler inserts the nasal tube into the nostrils to breathe oxygen. For oxygen inhalers who have difficulty breathing oxygen through the nostrils, the second pipe joint on the mouth air supply device is connected to the first pipe joint, and the oxygen inhaler holds the device body in the mouth and inhales oxygen from the air inlet pipe through the air inlet channel. At this time, the one-way valve is in a state of cutting off the air outlet channel under the negative pressure at the front end of the device body, so that the oxygen inhaler can better complete the oxygen inhalation. In the exhalation stage, the one-way valve is in a state of forcing the air outlet channel to be connected under the positive pressure at the front end of the device body, so that the oxygen inhaler can better complete the exhalation.

[0011] Different from the prior art, the present solution is provided with a mouth air supply device and a nasal air supply device which are independent of each other. The oxygen inhaler can choose to connect the mouth air supply device or the nasal air supply device to the air inlet pipe according to his / her own conditions when inhaling oxygen, so as to meet the oxygen inhalation needs of oxygen inhalers with different physical conditions. At the same time, since the mouth air supply device and the nasal air supply device are independent devices, when making the oxygen dispenser, it is not necessary to make a larger mask-type structure that can cover the mouth and nose at the same time, and there is no problem of high material cost due to the need to consider the requirements of the degree of fit between the mask-type structure and the face and the requirements of fit comfort. At the same time, since the mouth air supply device and the nasal air supply device are independent devices, when switching from nasal oxygen inhalation to oral oxygen inhalation, the nasal dirt contaminated on the nasal tube will not be directly contacted by the mouth. Compared with the common situation where oral and nasal oxygen inhalation share the same oxygen inhalation tube, the psychological rejection of the oxygen inhaler can be effectively eliminated. The independence of the mouth air supply device and the nasal air supply device can also optimize the mouth cleaning problem during the oxygen inhalation process. At the same time, for nasal cannula oxygen inhalation, the channel between the outside of the nasal cannula and the nostrils can be used as an exhalation channel. For mouth oxygen inhalation, the use of the air outlet channel and the one-way valve can not only better solve the problem of efficient oxygen inhalation, but also achieve smooth exhalation while keeping the device body in the mouth all the time, thereby improving the convenience of exhalation and making the breathing of the oxygen inhaler more natural.

[0012] In a specific embodiment, as a solution that is simple to operate and very convenient to connect or disconnect the air intake pipe from the mouth air supply device or the nasal air supply device, the second pipe joint and the third pipe joint are each connected to the first pipe joint by plug connection. Considering the purpose of connection, the connection method can be replaced by threaded connection, clamping connection, tape wrapping connection, etc.

[0013] In a specific embodiment, as a solution for improving oxygen utilization by reducing oxygen leakage, achieving relatively simple axial sealing on the inner side of the first pipe joint, and preventing the mouth air supply device or the nasal air supply device from falling off unintentionally by using an axial sealing device, an O-ring protruding relative to the inner wall of the first pipe joint and coaxial with the first pipe joint is installed on the inner side of the first pipe joint, and annular grooves are provided on the outer walls of the second pipe joint and the third pipe joint. When the second pipe joint and the third pipe joint are inserted into the first pipe joint, the sealing ring is embedded in the annular groove and compressed and deformed. In the present scheme, the O-ring serves as the axial sealing device, and its outer side can be bonded to the inner wall of the first pipe joint, or it can be embedded in the first pipe joint by using an annular groove located on the inner wall of the first pipe joint. When the second pipe joint or the third pipe joint is inserted into the first pipe joint, the front end of the second pipe joint or the third pipe joint is first squeezed by the O-ring, and the second pipe joint or the third pipe joint is continuously penetrated into the first pipe joint. When the annular groove on the second pipe joint or the third pipe joint moves to the position of the O-ring, the O-ring rebounds and is embedded in the groove of the second pipe joint or the third pipe joint. At this time, the O-ring not only plays an axial sealing role, but also uses the force of the O-ring on the second pipe joint or the third pipe joint to prevent the mouth air supply device or the nasal air supply device from falling off relative to the intake pipe.

[0014] In a specific embodiment, considering that the oxygen inhaler has alternate nostril ventilation, as a solution that any nostril can be used for oxygen inhalation when using a nasal air supply device, the nasal air supply device is provided with two nasal tubes, and also includes a main tube, and the third tube joint is connected to the nasal tube through the main tube. The method of using this solution is: when using the nasal air supply device to inhale oxygen, different nasal tubes are inserted into different nostrils.

[0015] In a specific embodiment, in order to fix the nasal air supply device on the face of the oxygen inhaler during nasal oxygen inhalation, a head strap connected to the main pipe is further included, one end of the head strap is fixedly connected to one end of the main pipe, and the other end of the head strap is fixedly connected to the other end of the main pipe, and the head strap and the main pipe form a head circumference space. The method of using this solution is: after the nasal tube is correctly inserted into the nostril, the oxygen supply device is worn on the head of the oxygen inhaler through the head circumference space formed by the head strap and the main pipe.

[0016] In a specific embodiment, as a one-way valve with a simple structure and light weight, the one-way valve includes a tympanic membrane arranged at the outlet of the air outlet channel, and the tympanic membrane is a spherical shell structure with a convex middle portion and an edge connected to the air outlet channel;

[0017] A cross-shaped slit is provided in the middle of the eardrum;

[0018] The eardrum is made of elastic material, and when the eardrum is in a natural state, the slit is in a closed state. The principle of the one-way valve in this solution is: the natural state is a state in which the pressure on both sides of the eardrum is consistent. When the oxygen inhaler holds the device body in his mouth and inhales, the middle convex eardrum is subjected to a force toward the concave side of the eardrum, and this force can further maintain the closed state of the slit. When the oxygen inhaler holds the device body in his mouth and exhales, the middle convex eardrum is subjected to a force toward the convex side of the eardrum. At this time, the closed state of the slit is broken, and an air outlet channel is obtained on the eardrum for the oxygen inhaler to exhale. The characteristics of this solution are also that the eardrum located at the outlet of the air outlet channel is exposed to a relatively open environment. When the eardrum is damaged due to long-term use or improper protection, the oxygen inhaler or related personnel can still perform relevant processing on the eardrum, such as cutting off the eardrum, and using fingers to intermittently close the outlet of the air outlet channel to obtain a basic one-way air guide function.

[0019] In a specific embodiment, in order to make the oxygen inhaler more comfortable to hold the device body in the mouth, the front end of the device body is a flat mouth with an elliptical cross section, the length of the flat mouth is greater than 3 cm, and the air inlet channel and the air outlet channel are arranged along the long axis of the elliptical surface. In this scheme, when the device body is held in the mouth, the device body that enters the mouth of the oxygen inhaler is the flat mouth, and the design of the elliptical cross section is used to obtain an ideal lip sealing effect. The arrangement of the air inlet channel and the air outlet channel on the device body is used to reduce the short axis size of the elliptical surface. Mask-type oral and nasal oxygen dispensers are recommended for young children. For example, for adult users, the length of the long axis of the elliptical surface can be designed to be 2 to 3.2 cm, and the length of the short axis of the elliptical surface can be 1.5 to 2.5 cm. In order to make better use of the flat mouth, the air inlet channel and the air outlet channel also use flat channels, and the long axis and short axis of the flat channel are respectively parallel to the long axis and short axis of the flat mouth.

[0020] In a specific embodiment, when a flat mouthpiece is used to stably hold the device body in the mouth, the flat mouthpiece is made of elastic material to make the flat mouthpiece more comfortable. For example, the eardrum and the flat mouthpiece of the mouth air supply device are made of rubber, and the materials of other places are made of plastic.

[0021] In a specific embodiment, in order to guide the oxygen inhaler to correctly hold the device body in the mouth, a bite mark is pre-made on the side of the front end of the flat mouth, and the bite mark is a groove set on the side of the flat mouth. When the present solution is used, the flat mouth goes deep into the mouth, and the teeth are embedded in the groove to correctly hold the device body in the mouth of the oxygen inhaler.

[0022] In a specific embodiment, in order to package the oxygen dispenser as a complete set of products, it also includes a packaging bag for packaging the air inlet tube, the mouth air supply device and the nasal air supply device as a complete set of products.

[0023] The utility model has the following beneficial effects:

[0024] In this solution, when using, the oxygen inhaler can choose to connect a mouth air supply device or a nasal air supply device to the air inlet pipe according to their own conditions when inhaling oxygen, so as to meet the oxygen inhalation needs of oxygen inhalers with different physical conditions;

[0025] Under the condition of meeting the demand for selective oxygen inhalation through the mouth and nose, the present solution does not need to be made into a larger mask-type structure that can cover the mouth and nose at the same time, and there is no problem of high material cost caused by the need to consider the requirements for the degree of fit between the mask-type structure and the face and the requirements for fit comfort, so that the use of the present oxygen dispenser has good economical efficiency;

[0026] When switching from nasal oxygen inhalation to oral oxygen inhalation, the nasal dirt on the nasal tube will not be directly touched by the mouth. Compared with the common situation where oral and nasal oxygen inhalation share the same oxygen inhalation tube, it can effectively eliminate the psychological rejection of oxygen inhalers. The independence of the mouth air supply device and the nasal air supply device can also optimize the mouth cleaning problem during oxygen inhalation.

[0027] For mouth oxygen inhalation, the use of the air outlet channel and the one-way valve can not only better solve the problem of efficient oxygen inhalation, but also achieve smooth exhalation while keeping the device body in the mouth all the time, thereby improving the convenience of exhalation and making the breathing of the oxygen inhaler more natural. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the composition of an embodiment of a disposable oxygen dispenser described in this solution;

[0029] Figure 2 for Figure 1 Rear view of the middle mouth air supply device;

[0030] Figure 3 for Figure 1 Side view of the middle nozzle air supply device.

[0031] The reference numerals in the figure are: 1. air inlet pipe, 2. first pipe joint, 3. second pipe joint, 4. flat mouth, 5. air inlet channel, 6. air outlet channel, 7. head strap, 8. nasal tube, 9. main pipe, 10. third pipe joint, 11. eardrum, 12. incision. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the embodiments, but the present invention is not limited to the following embodiments:

[0033] Embodiment 1:

[0034] like Figures 1 to 3 As shown, a disposable oxygen dispenser comprises an air inlet pipe 1, wherein the outlet end of the air inlet pipe 1 is provided with a first pipe joint 2;

[0035] Also included are a mouth air supply device and a nasal air supply device that are independent of each other;

[0036] The nozzle air supply device comprises a device body and a second pipe joint 3 connected to the device body, an air inlet channel 5 and an air outlet channel 6 are arranged on the device body, the inlet of the air inlet channel 5 is communicated with the second pipe joint 3, the outlet of the air inlet channel 5 and the inlet of the air outlet channel 6 are both located at the front end of the device body, the outlet of the second pipe joint 3 and the air outlet channel 6 are located at the rear end or side of the device body, and a one-way valve is arranged on the air outlet channel 6, and the conduction direction of the one-way valve is: the airflow can enter from the inlet of the air outlet channel 6 and flow out from the outlet of the air outlet channel 6;

[0037] The nasal air supply device includes a nasal tube 8 and a third tube connector 10 communicating with the nasal tube 8;

[0038] The second pipe joint 3 and the third pipe joint 10 can be detachably connected to the first pipe joint 2 .

[0039] When the oxygen supply device is in use, the inlet end of the air inlet pipe 1 is used to be connected to an oxygen tube or an oxygen cylinder. When the oxygen inhaler can breathe oxygen through the nostrils, the third pipe joint 10 on the nasal air supply device is connected to the first pipe joint 2, and the oxygen inhaler inserts the nasal tube 8 into the nostrils to breathe oxygen. For oxygen inhalers who have difficulty breathing oxygen through the nostrils, the second pipe joint 3 on the mouth air supply device is connected to the first pipe joint 2, and the oxygen inhaler holds the device body in the mouth and inhales oxygen from the air inlet pipe 1 through the air inlet channel 5. At this time, the one-way valve is in a state of cutting off the air outlet channel 6 under the negative pressure at the front end of the device body, so that the oxygen inhaler can better complete the oxygen inhalation. In the exhalation stage, the one-way valve is in a state of forcing the air outlet channel 6 to be connected under the positive pressure at the front end of the device body, so that the oxygen inhaler can better complete the exhalation.

[0040] Different from the prior art, the present solution is provided with a mouth air supply device and a nasal air supply device which are independent of each other. The oxygen inhaler can choose to connect the mouth air supply device or the nasal air supply device to the air inlet pipe 1 according to his / her own conditions during oxygen inhalation, so as to meet the oxygen inhalation needs of oxygen inhalers with different physical conditions. At the same time, since the mouth air supply device and the nasal air supply device are independent devices, when making the oxygen supply device, it is not necessary to make a larger mask-type structure that can cover the mouth and nose at the same time, and there is no problem of high material cost due to the need to consider the requirements of the degree of fit between the mask-type structure and the face and the requirements of fit comfort. At the same time, since the mouth air supply device and the nasal air supply device are independent devices, when switching from nasal oxygen inhalation to oral oxygen inhalation, the nasal dirt stained on the nasal tube 8 will not be directly contacted by the mouth. Compared with the common situation where oral and nasal oxygen inhalation share the same oxygen inhalation tube, the psychological rejection of the oxygen inhaler can be effectively eliminated. The independence of the mouth air supply device and the nasal air supply device can also optimize the mouth cleaning problem during oxygen inhalation. At the same time, for oxygen inhalation through the nasal tube 8, the channel between the outer side of the nasal tube 8 and the nostrils can be used as an exhalation channel. For oxygen inhalation through the mouth, the use of the air outlet channel 6 and the one-way valve can not only better solve the problem of efficient oxygen inhalation, but also achieve smooth exhalation while keeping the device body in the mouth all the time, thereby improving the convenience of exhalation and making the breathing of the oxygen inhaler more natural.

[0041] More specifically, as a solution that is simple to operate and very convenient to connect or disconnect the air intake pipe 1 with the mouth air supply device or the nasal air supply device, the second pipe joint 3 and the third pipe joint 10 are each connected to the first pipe joint 2 by plug connection. Considering the purpose of connection, the connection method can be replaced by threaded connection, clamping connection, tape wrapping connection, etc.

[0042] In more detail, as a solution that improves oxygen utilization by reducing oxygen leakage, realizes relatively simple axial sealing on the inner side of the first pipe joint 2, and utilizes an axial sealing device to prevent the mouth air supply device or the nasal air supply device from falling off unintentionally, an O-ring protruding relative to the inner wall of the first pipe joint 2 and coaxial with the first pipe joint 2 is installed on the inner side of the first pipe joint 2, and annular grooves are provided on the outer walls of the second pipe joint 3 and the third pipe joint 10. When the second pipe joint 3 and the third pipe joint 10 are inserted into the first pipe joint 2, the sealing ring is embedded in the annular groove and compressed and deformed. In the present scheme, the O-ring serves as the axial sealing device, and its outer side can be bonded to the inner wall of the first pipe joint 2, or it can be embedded in the first pipe joint 2 by using an annular groove located on the inner wall of the first pipe joint 2. When the second pipe joint 3 or the third pipe joint 10 is inserted into the first pipe joint 2, the front end of the second pipe joint 3 or the third pipe joint 10 first squeezes the O-ring, and makes the second pipe joint 3 or the third pipe joint 10 continue to penetrate into the first pipe joint 2. When the annular groove on the second pipe joint 3 or the third pipe joint 10 moves to the position of the O-ring, the O-ring rebounds and is embedded in the groove of the second pipe joint 3 or the third pipe joint 10. At this time, the O-ring not only plays an axial sealing role, but also uses the force of the O-ring on the second pipe joint 3 or the third pipe joint 10 to prevent the mouth air supply device or the nasal air supply device from falling off relative to the air intake pipe 1.

[0043] In more detail, considering that the oxygen inhaler has alternate nostril ventilation, as a solution that any nostril can be used for oxygen inhalation when using the nasal air supply device, the nasal air supply device is provided with two nasal tubes 8, and also includes a main tube 9, and the third tube joint 10 is connected to the nasal tube 8 through the main tube 9. The method of using this solution is: when using the nasal air supply device to inhale oxygen, different nasal tubes 8 are inserted into different nostrils.

[0044] More specifically, in order to fix the nasal air supply device on the face of the oxygen inhaler during nasal oxygen inhalation, it also includes a head strap 7 connected to the main pipe 9, one end of the head strap 7 is fixedly connected to one end of the main pipe 9, and the other end of the head strap 7 is fixedly connected to the other end of the main pipe 9, and the head strap 7 and the main pipe 9 form a head circumference space. The method of using this solution is: after the nasal tube 8 is correctly inserted into the nostril, the oxygen supply device is worn on the head of the oxygen inhaler through the head circumference space surrounded by the head strap 7 and the main pipe 9.

[0045] More specifically, as a one-way valve having a simple structure and light weight, the one-way valve comprises a tympanic membrane 11 disposed at the outlet of the air outlet channel 6, wherein the tympanic membrane 11 is a spherical shell structure with a convex middle portion and an edge connected to the air outlet channel 6;

[0046] A cross-shaped slit 12 is provided in the middle of the eardrum 11;

[0047] The eardrum 11 is made of elastic material, and when the eardrum 11 is in a natural state, the slit 12 is in a closed state. The principle of the one-way valve in this solution is: the natural state is a state in which the pressure on both sides of the eardrum 11 is consistent. When the oxygen inhaler holds the device body in his mouth and inhales, the eardrum 11 with a convex middle part is subjected to a force toward the concave side of the eardrum 11, and this force can further maintain the closed state of the slit 12. When the oxygen inhaler holds the device body in his mouth and exhales, the eardrum 11 with a convex middle part is subjected to a force toward the convex side of the eardrum 11. At this time, the closed state of the slit 12 is broken, and an air outlet channel 6 is obtained on the eardrum 11 for the oxygen inhaler to exhale. The characteristics of this solution are also that the eardrum 11 located at the outlet of the air outlet channel 6 is exposed to a relatively open environment. When the eardrum 11 is damaged due to long-term use or improper protection, the oxygen inhaler or relevant personnel can still perform relevant processing on the eardrum 11, such as cutting off the eardrum 11, and using fingers to intermittently close the outlet of the air outlet channel 6 to obtain a basic one-way air guide function.

[0048] More specifically, in order to make the oxygen inhaler more comfortable to hold the device in the mouth, the front end of the device body is a flat mouth 4 with an elliptical cross section, the length of the flat mouth 4 is greater than 3 cm, and the air inlet channel 5 and the air outlet channel 6 are arranged along the long axis of the elliptical surface. In this solution, when the device body is held in the mouth, the device body that enters the mouth of the oxygen inhaler is the flat mouth 4, and the design of the elliptical cross section is used to obtain an ideal lip sealing effect. The arrangement of the air inlet channel 5 and the air outlet channel 6 on the device body is used to reduce the short axis size of the elliptical surface. Mask-type oral and nasal oxygen dispensers are recommended for young children. For example, for adult users, the length of the long axis of the elliptical surface can be designed to be 2 to 3.2 cm, and the length of the short axis of the elliptical surface can be 1.5 to 2.5 cm. In order to better utilize the flat mouth 4, the air inlet channel 5 and the air outlet channel 6 also use flat channels, and the long axis and short axis of the flat channel are respectively parallel to the long axis and short axis of the flat mouth 4.

[0049] More specifically, when the flat mouth 4 is used to stably hold the device body in the mouth, in order to make the flat mouth 4 more comfortable to bite, the flat mouth 4 is made of elastic material. For example, the eardrum 11 and the flat mouth 4 of the mouth air supply device are made of rubber, and the materials of other places are made of plastic.

[0050] More specifically, in order to guide the oxygen inhaler to hold the device body in the mouth correctly, a bite mark is pre-made on the side of the front end of the flat mouth 4, and the bite mark is a groove set on the side of the flat mouth 4. When the present solution is used, the flat mouth 4 is inserted into the mouth, and the teeth are embedded in the groove to position the oxygen inhaler to hold the device body in the mouth correctly.

[0051] More specifically, in order to package the oxygen dispenser as a complete set of products, it also includes a packaging bag for packaging the air inlet tube, the mouth air supply device and the nasal air supply device as a complete set of products.

[0052] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, other embodiments derived without departing from the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable oxygen dispenser, comprising an air inlet pipe (1), characterized in that: The outlet end of the air inlet pipe (1) is provided with a first pipe joint (2); Also included are a mouth air supply device and a nasal air supply device that are independent of each other; The nozzle air supply device comprises a device body and a second pipe joint (3) connected to the device body, an air inlet channel (5) and an air outlet channel (6) are arranged on the device body, the inlet of the air inlet channel (5) is communicated with the second pipe joint (3), the outlet of the air inlet channel (5) and the inlet of the air outlet channel (6) are both located at the front end of the device body, the outlets of the second pipe joint (3) and the air outlet channel (6) are located at the rear end or side of the device body, and a one-way valve is arranged on the air outlet channel (6), and the conduction direction of the one-way valve is such that the air flow can enter from the inlet of the air outlet channel (6) and flow out from the outlet of the air outlet channel (6); The nasal air supply device comprises a nasal tube (8) and a third tube joint (10) communicating with the nasal tube (8); The second pipe joint (3) and the third pipe joint (10) can both be detachably connected to the first pipe joint (2).

2. A disposable oxygen dispenser according to claim 1, characterized in that: The second pipe joint (3) and the third pipe joint (10) are each connected to the first pipe joint (2) by plug-in connection.

3. A disposable oxygen dispenser according to claim 2, characterized in that: An O-type sealing ring is installed on the inner side of the first pipe joint (2), protruding relative to the inner wall of the first pipe joint (2) and coaxial with the first pipe joint (2); annular grooves are arranged on the outer walls of the second pipe joint (3) and the third pipe joint (10); when the second pipe joint (3) and the third pipe joint (10) are inserted into the first pipe joint (2), the sealing ring is embedded in the annular groove and is compressed and deformed.

4. A disposable oxygen dispenser according to claim 1, characterized in that: The nasal air supply device is provided with two nasal tubes (8) and also includes a main tube (9); a third tube joint (10) is connected to the nasal tubes (8) through the main tube (9).

5. A disposable oxygen dispenser according to claim 4, characterized in that: It also includes a head strap (7) connected to the main tube (9), one end of the head strap (7) is fixedly connected to one end of the main tube (9), and the other end of the head strap (7) is fixedly connected to the other end of the main tube (9), and the head strap (7) and the main tube (9) enclose a head circumference space.

6. A disposable oxygen dispenser according to claim 1, characterized in that: The one-way valve comprises a tympanic membrane (11) arranged at the outlet of the air outlet channel (6); the tympanic membrane (11) is a spherical shell structure with a convex middle portion and an edge connected to the air outlet channel (6); A cross-shaped slit (12) is provided in the middle of the eardrum (11); The eardrum (11) is made of elastic material, and when the eardrum (11) is in a natural state, the slit (12) is in a closed state.

7. A disposable oxygen dispenser according to claim 1, characterized in that: The front end of the device body is a flat mouth (4) with an elliptical cross section. The length of the flat mouth (4) is greater than 3 cm. The air inlet channel (5) and the air outlet channel (6) are arranged along the long axis of the elliptical surface.

8. A disposable oxygen dispenser according to claim 7, characterized in that: The flat mouth (4) is made of elastic material.

9. A disposable oxygen dispenser according to claim 7, characterized in that: A bite mark is prefabricated on the side surface of the front end of the flat mouth (4), and the bite mark is a groove arranged on the side surface of the flat mouth (4).

10. A disposable oxygen dispenser according to any one of claims 1 to 9, characterized in that: Also included is a packaging bag for packaging the air inlet tube (1), the mouth air supply device and the nasal air supply device into a complete set of products.

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