A high-flow oxygen inhalation device that prevents falling off

Abstract

The present invention relates to an anti-falling high-flow oxygen inhalation device, comprising an air source connecting pipe for communicating with an air source and an air outlet structure provided on the air source connecting pipe, the air outlet structure comprising a main pipe, the side of the main pipe having two air outlet pipes which are parallel to each other and spaced apart and connected to the main pipe, the two air outlet pipes being jointly equipped with an anti-falling component, the oxygen inhalation device is anti-falling by being directly fixed to the patient's nose, so that the oxygen inhalation tube does not need to be worn on the patient's ear, which is extremely convenient for patients whose ears are not convenient to fit the oxygen inhalation tube. In addition, the air outlet pipe of the present application is supported in the nostril by a plurality of elastic spokes, the air outlet pipe cannot be tilted up or down in the nostril, but maintains a relatively centered position with the nostril in the nostril, so that the air outlet end of the air outlet pipe will not be blocked, and the normal oxygen outlet of the pipe will not be hindered, and the oxygen flow rate is higher than that of traditional oxygen inhalation tubes.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an anti-falling high-flow oxygen inhalation device. Background Art

[0002] Patients with clinical respiratory failure often need oxygen supply through the respiratory tract, which requires the use of an oxygen tube. Currently, a ring-shaped nasal oxygen tube is commonly used in clinical practice. The wearing method is: the oxygen outlet is aligned with the nostrils, and the oxygen tubes on both sides are hung on the ears and tightened at the chin. This wearing method is more convenient for general patients, but for myopic patients who wear glasses, since they need to wear glasses temples on their ears, wearing an oxygen tube on the ear will increase the burden on the patient's ears. If the oxygen tube is not hung on the ear, the oxygen outlet of the existing oxygen tube is easy to fall off from the nose. Therefore, this application proposes a high-flow oxygen inhalation device that prevents it from falling off for patients whose ears are not convenient for wearing oxygen tubes. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a high-flow oxygen inhalation device that is resistant to falling off.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is:

[0005] A high-flow oxygen inhalation device with an anti-dropout function includes an air source connecting pipe for communicating with an air source and an air outlet structure provided on the air source connecting pipe, the air outlet structure including a main pipe connected to and communicating with the air source connecting pipe, the main pipe having two air outlet pipes parallel to each other and spaced apart and communicating with the main pipe on its side, the two air outlet pipes being jointly equipped with an anti-dropout component;

[0006] The anti-falling assembly includes two elastic members respectively provided on the two air outlet pipes and a connecting member provided between the two elastic members;

[0007] The elastic member includes a first connecting portion fixedly or rotatably connected to an end of the outlet pipe away from the main pipe, a second connecting portion sleeved outside the outlet pipe and located between the first connecting portion and the main pipe, and an elastic spoke fixedly connected between the first connecting portion and the second connecting portion, wherein the portion of the elastic spoke away from the two ends is in a naturally curved state convex away from the outside of the outlet pipe;

[0008] The connecting member is fixed between the second connecting portions of the two elastic members.

[0009] Furthermore, the first connection portion is defined as a rotating ring, and the rotating ring is coaxially rotatably connected to the outer periphery of the outlet pipe, and the second connection portion is defined as a slip ring.

[0010] Furthermore, each of the elastic members has a plurality of elastic spokes between the first connecting portion and the second connecting portion, and the plurality of elastic spokes of each of the elastic members are distributed around the circumference of the corresponding air outlet pipe.

[0011] Furthermore, the side of the main pipe has two branch pipes communicating with the main pipe, the two outlet pipes are rotatably connected to the two branch pipes respectively, a first sealing plate is fixedly connected to the inside of the branch pipe, the first sealing plate has a first notch, and a second sealing plate in contact with the first sealing plate is fixedly connected to one end of the outlet pipe close to the first sealing plate, the second sealing plate has a second notch; when the second notch overlaps with the first notch, the outlet pipe communicates with the main pipe through the branch pipe;

[0012] When the first notch and the second notch are in an overlapping state, after the outlet pipe is rotated N degrees axially relative to the branch pipe, the first notch will no longer overlap with the second notch. At this time, the second notch is closed by the first sealing plate and the first notch is closed by the second sealing plate, and the outlet pipe is not connected to the main pipe; the range of the rotation angle N is greater than 0 degree and less than 360 degrees.

[0013] Furthermore, a combined slide groove is provided on the side of the air outlet pipe, and the slip ring is provided with a slider slidably assembled in the combined slide groove, and the combined slide groove includes a linear slide groove parallel to the axis of the air outlet pipe and a spiral slide groove connected to the end of the linear slide groove away from the main pipe; the angle between the perpendicular line between the end of the spiral slide groove close to the linear slide groove and its axis and the perpendicular line between the end away from the linear slide groove and its axis is equal to N degrees; when the slider is located in the linear slide groove, the second notch overlaps with the first notch.

[0014] Furthermore, the rotation angle N is limited to 180 degrees.

[0015] Furthermore, an annular groove is provided on the inner side of the branch pipe, and a convex ring is provided on the side surface of the air outlet pipe and is rotatably assembled in the annular groove.

[0016] Furthermore, the main pipe is formed by splicing two main pipe shells, and the two branch pipes are each formed by splicing two branch pipe shells, and the two branch pipe shells on both sides are respectively located on the two main pipe shells.

[0017] Furthermore, the anti-falling component is made of stainless steel.

[0018] Furthermore, the gas source connecting pipe includes a first connecting pipe and two second connecting pipes connected to one end of the first connecting pipe away from the gas source, and the two second connecting pipes are connected to two ends of the main pipe at one end away from the first connecting pipe.

[0019] The present invention provides a high-flow oxygen inhalation device that prevents falling off. The oxygen inhalation device is fixed directly to the patient's nose to achieve anti-falling wearing. In this way, the oxygen inhalation tube does not need to be worn on the patient's ear. It is very convenient for patients whose ears are not convenient to match the oxygen inhalation tube. In addition, the outlet tube of the present application is supported in the nostril by multiple elastic spokes. The outlet tube cannot be tilted up or down in the nostril, but maintains a relatively centered position with the nostril in the nostril. In this way, the outlet end of the outlet tube will not be blocked, and the normal oxygen discharge of the outlet tube will not be hindered. Compared with traditional oxygen inhalation tubes, it has a higher oxygen flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is a schematic structural diagram of Example 1 of the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure at point A in the middle;

[0023] Figure 3 This is a schematic structural diagram of the main pipe in Example 2 of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the air outlet pipe in Example 2 of the present invention;

[0025] Figure 5 This is a schematic structural diagram of Example 3 of the present invention;

[0026] Figure 6 Schematic diagram of the air outlet pipe structure in Example 3 of the present invention Figure 1 ;

[0027] Figure 7 Schematic diagram of the air outlet pipe structure in Example 3 of the present invention Figure 2 ;

[0028] Figure 8 Schematic diagram of the elastic member structure in Example 3 of the present invention;

[0029] Figure 9 This is a schematic structural diagram of Example 4 of the present invention;

[0030] Figure 10 This is a schematic structural diagram of the main pipe in Example 4 of the present invention;

[0031] Figure 11 This is a schematic diagram of the assembly of the main pipe and the second connecting pipe in Example 4 of the present invention.

[0032] The meanings of the reference numerals in the accompanying drawings are:

[0033] Gas source connecting pipe 1, first connecting pipe 11, second connecting pipe 12, convex ring 121;

[0034] Air outlet structure 2, main pipe 21, branch pipe 211, annular groove 2111, branch pipe shell 2112, first closing plate 212, first notch 213, main pipe shell 214, convex annular groove 2141, air outlet pipe 22, second closing plate 221, second notch 222, convex ring 223, anti-falling component 23, elastic member 231, first connecting part 2311, rotating ring 23111, slider 23122, rotating groove 23113, second connecting part 2312, slip ring 23121, elastic spoke 2313, connecting member 232, combined slide groove 24, linear slide groove 241, spiral slide groove 242. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings.

[0036] Example 1

[0037] Reference Figure 1 and Figure 2 The anti-drop high-flow oxygen inhalation device of this embodiment includes an air source connecting pipe 1 for communicating with an air source, and an air outlet structure 2 provided on the air source connecting pipe 1. In this embodiment, the air source connecting pipe 1 includes a first connecting pipe 11 communicating with the air source, and two second connecting pipes 12 connected to the end of the first connecting pipe 11 away from the air source. The ends of the two second connecting pipes 12 away from the first connecting pipe 11 are respectively connected to the air source input ends of the air outlet structure 2.

[0038] The air outlet structure 2 has at least one air source input and two air source outputs. The air source input is connected to the air source connection tube 1, and the two air source outputs are inserted into the patient's nostrils to deliver air into the patient's respiratory tract. In the illustrated embodiment, the air outlet structure 2 includes a main pipe 21, flanked by two parallel, spaced-apart air outlet pipes 22 that communicate with the main pipe 21, and anti-drop components 23 disposed on the two air outlet pipes 22.

[0039] Both ends of the main pipe 21 are defined as gas source input ends, each of which is in sealed communication with the ends of the two second connecting pipes 12, distal from the first connecting pipe 11. Two openings are provided on the sidewall of the main pipe 21, corresponding to the positions of the two outlet pipes 22. Both openings extend radially through the sidewall of the main pipe 21.

[0040] The anti-drop component 23 can be made of stainless steel. The stainless steel anti-drop component 23 has good elasticity and is not easy to breed bacteria. The anti-drop component 23 includes two elastic members 231 respectively provided on the two air outlet pipes 22 and a connecting member 232 provided between the two elastic members 231.

[0041] The elastic member 231 includes a first connection portion 2311 fixedly or rotatably connected to the side of the outlet pipe 22 away from the main pipe 21, a second connection portion 2312 sleeved on the outside of the outlet pipe 22 and located between the first connection portion 2311 and the main pipe 21, and an elastic spoke 2313 fixedly connected between the first connection portion 2311 and the second connection portion 2312. The parts of the elastic spoke 2313 away from its two ends are in a naturally bent state convex toward the side away from the outlet pipe 22, that is, bent into a U-shape.

[0042] In order to limit the upper part of the elastic member 231 from moving up and down relative to the air outlet pipe 22, the first connecting portion 2311 is fixedly or rotatably connected to the side of the air outlet pipe 22 away from the main pipe 21, that is, the upper part of the air outlet pipe 22, so that the upper part of the elastic member 231 cannot move up and down relative to the air outlet pipe 22. In this embodiment, the first connecting portion 2311 is rotatably connected to the air outlet pipe 22. Specifically, the first connecting portion 2311 is defined as a rotating ring 23111, which is coaxially rotatably connected to the outer side of the air outlet pipe 22. Furthermore, a rotating groove 23113 is provided on the upper outer side of the air outlet pipe 22, and the rotating ring 23111 is rotatably assembled in the rotating groove 23113 to limit the rotating ring 23111 from moving up and down relative to the air outlet pipe 22. It should be understood that the rotational connection method between the rotating ring 23111 and the air outlet pipe 22 is not limited to the above-mentioned embodiment. In other embodiments, other structures that can limit the up and down movement of the rotating ring 23111 relative to the air outlet pipe 22 can also be considered, such as setting limit members fixed to the air outlet pipe 22 on the upper and lower sides of the rotating ring 23111.

[0043] In order to allow the second connection portion 2312 to be sleeved outside the air outlet pipe 22 , the second connection portion 2312 is defined as a slip ring 23121 . The slip ring 23121 is sleeved outside the air outlet pipe 22 , so that the slip ring 23121 can axially slide and rotate relative to the air outlet pipe 22 .

[0044] In this embodiment, each elastic member 231 has 12 elastic spokes 2313 between the first connecting portion 2311 and the second connecting portion 2312. The 12 elastic spokes 2313 of each elastic member 231 are distributed around the outer side of the corresponding air outlet pipe 22. The shape formed by the 12 elastic spokes 2313 is approximately lantern-shaped. In the natural state, that is, when the elastic member 231 is not worn, the diameter of the lantern-shaped elastic spokes 2313 is greater than 5 cm. The diameter of the nostrils of ordinary people is 3 to 4.5 cm. The 5 cm lantern-shaped elastic spokes 2313 can just cover this range, and at the same time, a certain margin can be left for rebound to provide elastic force.

[0045] Specifically, the connecting member 232 is fixed between the second connecting portions 2312 of the two elastic members 231. In this embodiment, the connecting member 232 is a long strip-shaped paddle structure. The elastic spokes 2313 in a natural state will lift the second connecting portion 2312 upward relative to the first connecting portion 2311. This is the case for the second connecting portions 2312 on both sides, so that the connecting member 232 can be lifted upward.

[0046] When using the oxygen inhalation device, connect the first connecting tube 11 to the air source, that is, to the oxygen outlet end of the oxygen supply device, and then wear the air outlet structure 2 on the patient's nose. When wearing it, hold the main tube 21 and the connecting piece 232, and press the connecting piece 232 toward the side of the main tube 21, so that the connecting piece 232 drives the two slip rings 23121 to slide toward the side of the main tube 21 at the same time. This process can stretch the 12 elastic spokes 2313 of the two elastic members 231, and the protruding parts of the elastic spokes 2313 away from the air outlet pipe 22 will gradually move closer, and the diameters of the two lantern-shaped elastic spokes 2313 will decrease. When the diameters of the two lantern-shaped elastic spokes 2313 are small, the 12 elastic spokes 2313 will be stretched. After measuring the diameter of the patient's nostrils, the two elastic parts 231 are inserted into the two nostrils of the patient respectively, and then the connecting part 232 is loosened. The two lantern-shaped elastic spokes 2313 will rebound under the action of their own elastic force until they abut against the inner wall of the patient's nostrils. In this way, the two elastic parts 231 can be stuck in the two nostrils of the patient under the action of their own elastic force. At this time, the two air outlet tubes 22 are fixed in the two nostrils respectively. At this point, the wearing operation is completed, and the patient can inhale oxygen through the oxygen inhalation device. The oxygen inhalation device is directly fixed to the patient's nose to achieve anti-falling wearing. In this way, the oxygen tube does not need to be worn on the patient's ears, which is convenient for patients whose ears are not convenient to wear the oxygen tube.

[0047] When a traditional oxygen inhalation tube is in use, the air outlet tube inserted into the nostril has no other structure to support it, so it is easy to tilt up or down in the nostril, so that the air outlet end of the air outlet tube is easy to abut against the upper or lower wall of the patient's nostril, thereby hindering the normal oxygen discharge of the air outlet tube, which reduces the oxygen flow rate to a certain extent. The air outlet tube 22 of the present application is supported in the nostril by 12 elastic spokes 2313. The air outlet tube 22 cannot tilt up or down in the nostril, but maintains a relatively centered position with the nostril in the nostril. In this way, the air outlet end of the air outlet tube 22 will not be blocked, and the normal oxygen discharge of the air outlet tube 22 will not be hindered. Compared with traditional oxygen inhalation tubes, it has a higher oxygen flow rate.

[0048] Example 2

[0049] In some cases, it is necessary to temporarily remove the air outlet structure 2 to stop oxygen supply. For example, when the inside of the nostrils needs to be inspected, the air outlet structure 2 needs to be removed from the nose. In order to prevent foreign matter from entering the air source connecting tube 1 through the air outlet tube 22, this embodiment has made further improvements on the basis of the previous embodiment. Figure 3-4 As shown, in this embodiment, the side of the main pipe 21 has two branch pipes 211 that communicate with the main pipe 21, and the two outlet pipes 22 are rotatably connected to the two branch pipes 211. Specifically, an annular groove 2111 is formed on the inner side of the branch pipe 211, and the side of the outlet pipe 22 has a protruding ring 223 that is rotatably assembled in the annular groove 2111. The protruding ring 223 is assembled in the annular groove 2111 to enable a rotatable connection between the outlet pipe 22 and the branch pipe 211. It should be understood that the rotatable connection between the outlet pipe 22 and the branch pipe 211 is not limited to the above embodiment, and other connection methods that can achieve a rotatable connection between the outlet pipe 22 and the branch pipe 211 can also be considered in other embodiments.

[0050] A first sealing plate 212 is fixedly connected to the inside of the branch pipe 211. The first sealing plate 212 has a first notch 213. A second sealing plate 221 is fixedly connected to the end of the outlet pipe 22 close to the first sealing plate 212 and in contact with the first sealing plate 212. The second sealing plate 221 has a second notch 222. When the second notch 222 overlaps with the first notch 213, the outlet pipe 22 communicates with the main pipe 21 through the branch pipe 211. When the first notch 213 and the second notch 222 are in the overlapping state, the outlet pipe 22 is rotated N degrees relative to the branch pipe 211 (as shown in FIG. Figure 3 and Figure 4 As shown, in this embodiment, the rotation angle N is limited to 180 degrees), the first notch 213 will not overlap with the second notch 222. At this time, the second notch 222 is closed by the first sealing plate 212 and the first notch 213 is closed by the second sealing plate 221, and the air outlet pipe 22 is not connected to the main pipe 21.

[0051] After removing the air outlet structure 2 from the patient's nose, the two air outlet tubes 22 can be rotated 180 degrees relative to their corresponding branch tubes 211, so that they are no longer connected to the main tube 21. This prevents foreign matter from entering the main tube 21 through the air outlet tubes 22 and affecting the subsequent normal use of the oxygen inhalation device. When the air outlet tubes 22 need to be restored to ventilation, they can be rotated 180 degrees relative to their corresponding branch tubes 211.

[0052] Example 3

[0053] In Example 2, when cutting off the outlet pipe 22 and the main pipe 21, people need to manually operate, but patients or medical staff often forget this operation. Therefore, in order to solve this problem, this embodiment has made further improvements on the basis of Example 2. Figure 5-8 As shown, in this embodiment, a combined chute 24 is opened on the side of the air outlet pipe 22, and the slip ring 23121 is provided with a slider 23122 slidably assembled in the combined chute 24, and the combined chute 24 includes a linear chute 241 parallel to the axis of the air outlet pipe 22 and a spiral chute 242 connected to the linear chute 241 away from the main pipe 21; the angle between the perpendicular line connecting the end of the spiral chute 242 close to the linear chute 241 and its axis and the perpendicular line connecting the end away from the linear chute 241 and its axis is equal to 180 degrees. When the slider 23122 is located in the linear chute 241, the second notch 222 overlaps with the first notch 213.

[0054] In the natural state, that is, when the elastic member 231 is not worn, the elastic spoke 2313 will drive the second connecting portion 2312 to retract upward until the slider 23122 abuts against the top position of the spiral slide groove 242. In this state, the first notch 213 will not overlap with the second notch 222. At this time, the second notch 222 is closed by the first sealing plate 212 and the first notch 213 is closed by the second sealing plate 221, and the air outlet pipe 22 is not connected to the main pipe 21.

[0055] When the nose of the patient is worn, the main pipe 21 and the connecting piece 232 are held and the connecting piece 232 is pressed toward one side of the main pipe 21, so that the connecting piece 232 drives the two sliding rings 23121 to slide toward one side of the main pipe 21 at the same time. The two sliding rings 23121 cannot rotate relative to the corresponding air outlet pipes 22 under the limiting action of the two air outlet pipes 22 and the connecting piece 232, that is, the two sliding rings 23121 and the sliders 23122 inside the sliding rings 23121 all slide vertically downward, while the two air outlet pipes 22 can rotate relative to the corresponding elastic members 231 and relative to the corresponding branch pipes 211. Therefore, the sliders 23122 cooperate with the spiral grooves 242 on the sides of the air outlet pipes 22 to force the air outlet pipes 22 to rotate axially relative to the branch pipes 211 during the vertical sliding process. After sliding the slide 242, it will enter the linear slide 241. At this time, the air outlet pipe 22 has rotated 180 degrees relative to the corresponding branch pipe 211. That is, the second notch 222 has been rotated to align with the first notch 213, and the air outlet pipe 22 has been connected to the main pipe 21 through the branch pipe 211. When the slider 23122 continues to slide in the linear slide 241, the air outlet pipe 22 will no longer rotate. The sliding stroke of the slider 23122 in the linear slide 241 can be used to adjust the diameter of the lantern-shaped elastic spoke 2313. After the diameter of the lantern-shaped elastic spoke 2313 is smaller than the diameter of the patient's nostrils, the two elastic members 231 are respectively inserted into the two nostrils of the patient, and then the connecting member 232 is loosened. The two lantern-shaped elastic spokes 2313 will rebound under the action of their own elastic force until they abut against the inner wall of the patient's nostrils, and the wearing is completed.

[0056] After the air outlet structure 2 is removed from the patient's nose, the elastic spokes 2313 will rebound, driving the sliding ring 23121 and the slider 23122 to slide upward. The slider 23122 will slide upward from the linear slide 241 into the spiral slide 242 until it abuts against the end of the spiral slide 242 away from the linear slide 241. When the slider 23122 passes through the spiral slide 242, it will force the air outlet pipe 22 to rotate 180 degrees, that is, the first notch 213 will no longer overlap with the second notch 222. At this time, the second notch 222 is closed by the first sealing plate 212 and the first notch 213 is closed by the second sealing plate 221, and the air outlet pipe 22 is no longer connected to the main pipe 21. In this way, the air outlet pipe 22 and the main pipe 21 are automatically cut off, without the need for manual operation by the patient or staff, and automatically play a protective role. In addition, this design can automatically cut off the oxygen discharge channel when the air outlet structure 2 is accidentally detached from the patient's nose, avoiding useless oxygen output and waste.

[0057] Some oxygen supply devices that are equipped with oxygen supply pressure sensors to continuously monitor the oxygen supply pressure can directly detect the situation when the air outlet structure 2 separates from the patient's nose and the air outlet is automatically cut off when using the present oxygen inhalation device to supply oxygen to the patient. Corresponding sound and light alarms or other alarm measures can be set to attract the attention of medical staff, so that medical staff can promptly know that the air outlet structure 2 has separated from the patient's nose, thereby allowing medical staff to respond quickly and ensure the patient's life safety as much as possible.

[0058] In actual application, when the slider 23122 is located at the connection between the linear slide 241 and the spiral slide 242, the diameter of the lantern-shaped elastic spoke 2313 can be set to be greater than or equal to 5 cm. This can prevent the lantern-shaped elastic spoke 2313 from rebounding in the nostril to drive the slider 23122 into the spiral slide 242 and drive the exhaust pipe 22 to rotate, thereby preventing the overlapping area of the second notch 222 and the first notch 213 from being reduced, thereby ensuring a higher oxygen flow rate.

[0059] Example 4

[0060] In order to facilitate the assembly of the various structures in the air outlet structure 2, this embodiment has made improvements on the basis of the previous embodiment, such as Figure 9-10 As shown, in this embodiment, the main pipe 21 is formed by splicing two main pipe shells 214, and the two branch pipes 211 are each formed by splicing two branch pipe shells 2112. The two branch pipe shells 2112 on both sides are respectively located on the two main pipe shells 214. In this way, during assembly, the corresponding components are assembled on one main pipe shell 214, and then the other main pipe shell 214 is covered. Then, corresponding fixing measures are taken to fix it, such as using adhesives for bonding. In this way, the assembly of the air outlet structure 2 can be completed, which is convenient for assembly and conducive to production.

[0061] It is worth mentioning that the two second connecting tubes 12 are each provided with an outwardly protruding convex ring 121 at one end away from the first connecting tube 11. Correspondingly, convex ring grooves 2141 are provided at both ends of the inner sides of the two main tube shells 214. After the two main tube shells 214 are assembled with each other, the convex ring 121 is snapped into the two convex ring grooves 2141 to enhance the connection strength between the second connecting tube 12 and the branch tube 211, making it difficult for the connecting tube 12 to fall out of the main tube 21.

[0062] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A high-flow oxygen inhalation device that prevents falling off, characterized by: The invention comprises an air source connecting pipe for communicating with an air source and an air outlet structure provided on the air source connecting pipe, wherein the air outlet structure comprises a main pipe connected to and communicating with the air source connecting pipe, and the side of the main pipe has two air outlet pipes which are parallel to each other and spaced apart and communicate with the main pipe, and the two air outlet pipes are jointly equipped with an anti-drop assembly; The anti-falling assembly includes two elastic members respectively provided on the two air outlet pipes and a connecting member provided between the two elastic members; The elastic member includes a first connecting portion fixedly or rotatably connected to an end of the outlet pipe away from the main pipe, a second connecting portion sleeved outside the outlet pipe and located between the first connecting portion and the main pipe, and an elastic spoke fixedly connected between the first connecting portion and the second connecting portion, wherein the portion of the elastic spoke away from the two ends is in a naturally curved state convex away from the outside of the outlet pipe; The connecting member is fixedly connected between the second connecting portions of the two elastic members; The first connection portion is defined as a rotating ring, the rotating ring is coaxially rotatably connected to the outer periphery of the outlet pipe, and the second connection portion is defined as a slip ring; A plurality of elastic spokes are provided between the first connecting portion and the second connecting portion of each elastic member, and the plurality of elastic spokes of each elastic member are distributed around the circumference of the corresponding air outlet pipe; The side of the main pipe has two branch pipes connected to the main pipe, and the two outlet pipes are rotatably connected to the two branch pipes respectively. A first sealing plate is fixedly connected to the inside of the branch pipe, and the first sealing plate has a first notch. A second sealing plate is fixedly connected to one end of the outlet pipe close to the first sealing plate and in contact with the first sealing plate, and the second sealing plate has a second notch; when the second notch overlaps with the first notch, the outlet pipe communicates with the main pipe through the branch pipe; When the first notch and the second notch are in an overlapping state, after the outlet pipe is rotated N degrees axially relative to the branch pipe, the first notch will no longer overlap with the second notch. At this time, the second notch is closed by the first sealing plate and the first notch is closed by the second sealing plate, and the outlet pipe is not connected to the main pipe. The range of the rotation angle N is greater than 0 degrees and less than 360 degrees. A combined slide groove is provided on the side of the air outlet pipe, and the slip ring is provided with a slider slidably assembled in the combined slide groove. The combined slide groove includes a linear slide groove parallel to the axis of the air outlet pipe and a spiral slide groove connected to the end of the linear slide groove away from the main pipe; the angle between the perpendicular line between the end of the spiral slide groove close to the linear slide groove and its axis and the perpendicular line between the end of the spiral slide groove away from the linear slide groove and its axis is equal to N degrees; when the slider is located in the linear slide groove, the second notch overlaps with the first notch.

2. The anti-falling high-flow oxygen inhalation device according to claim 1, characterized in that: The rotation angle N is limited to 180 degrees.

3. The anti-falling high-flow oxygen inhalation device according to claim 1, characterized in that: An annular groove is provided on the inner side of the branch pipe, and a convex ring which is rotatably assembled in the annular groove is provided on the side of the air outlet pipe.

4. The anti-falling high-flow oxygen inhalation device according to claim 3, characterized in that: The main pipe is formed by splicing two main pipe shells, and the two branch pipes are each formed by splicing two branch pipe shells. The two branch pipe shells on both sides are respectively located on the two main pipe shells.

5. The anti-falling high-flow oxygen inhalation device according to any one of claims 1 to 4, characterized in that: The anti-falling component is made of stainless steel.

6. The anti-falling high-flow oxygen inhalation device according to any one of claims 1 to 4, characterized in that: The gas source connecting pipe includes a first connecting pipe and two second connecting pipes connected to one end of the first connecting pipe away from the gas source, and the two second connecting pipes are respectively connected to two ends of the main pipe at one end away from the first connecting pipe.

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