Anti-collapse inflatable oxygen inhalation mask

Abstract

The invention discloses an anti-collapse inflatable oxygen inhalation mask and belongs to the technical field of medical equipment, the anti-collapse inflatable oxygen inhalation mask comprises an inner mask, an air inlet pipe and an air outlet pipe, a sleeve rope is arranged on the inner mask, a sealing cavity is formed in the position, used for making contact with the face of a patient, of the inner mask, an inner cavity of the inner mask is a breathing cavity, and the air inlet pipe is used for conveying oxygen to the sealing cavity and the breathing cavity; the air outlet pipe is communicated with the sealing cavity and the breathing cavity, and valves are arranged on the air inlet pipe and the air outlet pipe. The air pressure in the breathing cavity is larger than that in the hyperbaric oxygen chamber through the air inlet pipe, so that the inner cover can be stably supported, the inner cover is effectively prevented from collapsing and deforming due to pressure extrusion in the chamber, oxygen in the breathing cavity is prevented from leaking, the effective oxygen delivery amount is remarkably increased, and the oxygen delivery efficiency is improved. The waste of medical resources is reduced, the oxygen therapy efficiency of the patient is improved, and a good oxygen therapy effect on the patient is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to an anti-collapse inflatable oxygen-inhaling mask. Background Art

[0002] Hyperbaric oxygen therapy, an important clinical treatment, significantly increases the dissolved oxygen content in the blood by placing patients in an environment above atmospheric pressure to breathe pure oxygen, accelerating tissue repair, inhibiting infection, and improving ischemic and hypoxic diseases. The core equipment of this technology is the hyperbaric oxygen chamber. The respiratory mask is the terminal device that directly connects the patient to the hyperbaric oxygen chamber's oxygen supply system. Its performance determines the efficacy and safety of the hyperbaric oxygen chamber's oxygen treatment for patients.

[0003] Existing hyperbaric oxygen chambers generally use a closed breathing mask, secured to the patient's face by a physical strap and relying on a silicone seal to provide airtight coverage around the mouth and nose. However, in a high-pressure environment (typically 2.0-2.8 atmospheres), the internal pressure of the mask is significantly lower than the external chamber pressure, making the mask structure susceptible to collapse and deformation due to external pressure. This phenomenon leads to numerous problems, including: First, mask collapse reduces the fit of the mask to the patient's face, causing oxygen leakage (oxygen leakage rate can reach 20%-35%), significantly reducing effective oxygen delivery and requiring a significant increase in oxygen flow to compensate, resulting in a waste of medical resources. Second, oxygen leakage reduces the efficiency of increasing the patient's blood oxygen concentration, compromising treatment effectiveness. Third, the collapsed mask reduces the internal cavity space, forcing the patient to overcome the external high pressure on the airway, which can lead to respiratory muscle fatigue. This can especially increase the risk of asphyxiation for those with impaired cardiopulmonary function, reducing the safety and reliability of treatment.

[0004] Based on this, there is an urgent need to design an anti-collapse inflatable oxygen mask to adapt to the use environment of the hyperbaric oxygen chamber and provide reliable technical support for patients' hyperbaric oxygen therapy. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the existing technology and provide an anti-collapse inflatable oxygen mask that can be used in a hyperbaric oxygen chamber, effectively prevent collapse and deformation, improve the oxygen therapy efficiency for patients and ensure the effect of oxygen therapy.

[0006] To achieve the above-mentioned objectives, the present invention provides an anti-collapse inflatable oxygen mask, comprising an inner mask, an air inlet pipe and an air outlet pipe, wherein the inner mask is provided with a rope, the inner mask is used to cover the patient's mouth and nose, and a sealed cavity is formed at the position where the inner mask is used to contact the patient's face, the inner cavity of the inner mask is a breathing cavity, the air inlet pipe is used to transport oxygen to the sealed cavity and the breathing cavity, so that the air pressure in the breathing cavity is greater than the air pressure in the hyperbaric oxygen chamber through the air inlet pipe, the air outlet pipe is connected to the sealed cavity and the breathing cavity, and valves are provided on both the air inlet pipe and the air outlet pipe.

[0007] Preferably, it further includes a connector and an outer cover, the inner cover is provided with the connector along its edge for contacting the patient's face, the connector is connected to the edge of the outer cover to enclose the sealed cavity with the inner cover, and the air pressure of the sealed cavity is made greater than the air pressure of the breathing cavity through the air inlet pipe; the outer cover is provided with the rope, the outer cover is connected to the inner cover and is used to cover the patient's face.

[0008] Preferably, one end of the air inlet pipe and the air outlet pipe is respectively provided with an air hole connected to the sealed cavity, the valve is used to open or close the air hole, and the other end of the air inlet pipe and the air outlet pipe is used to connect to the oxygen supply equipment of the hyperbaric oxygen chamber.

[0009] Preferably, windows for the patient's line of sight are respectively opened on the outer cover and the connecting piece, and a transparent baffle is provided at the window of the outer cover; a flexible belt is provided along the edge of the outer cover; and a rope is provided on the top and bottom of the outer cover.

[0010] Preferably, it also includes an outer cover and several air bags, the inner cavities of the several air bags are the sealed cavities, the inner cavity of the inner cover is the breathing cavity, and the air pressure of the sealed cavity is made greater than the air pressure of the breathing cavity through the air inlet pipe, the inner cover is provided with a flexible strip along its edge, and the outer wall of the inner cover is evenly and spaced apart.

[0011] Preferably, edges of the inner cover and the outer cover are connected with a protective layer for shielding the airbags.

[0012] Preferably, the top edges of the outer cover and the inner cover are flush with each other.

[0013] Beneficial effects: 1. During use, the anti-collapse inflatable oxygen mask of the present invention gradually fills the sealed cavity with oxygen through the air inlet tube and expands, thereby reducing the pressure of the inner mask on the patient's face and improving the patient's wearing comfort.

[0014] 2. During use, the anti-collapse inflatable oxygen mask of the present invention ensures that the air pressure in the breathing chamber is greater than the air pressure in the hyperbaric oxygen chamber through the air inlet pipe, thereby providing stable support for the inner mask. This not only effectively prevents the inner mask from collapsing and deforming due to the pressure in the chamber and prevents oxygen leakage in the breathing chamber, but also significantly increases the effective oxygen delivery, reduces the waste of medical resources, and improves the oxygen therapy efficiency for patients, ensuring good oxygen therapy effects for patients.

[0015] 3. During use, the anti-collapse inflatable oxygen mask of the present invention does not cause compression and deformation of the breathing chamber due to cabin pressure, so the patient does not need to exert extra force to resist airway compression, thereby reducing respiratory muscle fatigue and ensuring the safety and reliability of oxygen therapy.

[0016] 4. During use, the anti-collapse inflatable oxygen mask of the present invention allows the inner mask edge to fit tightly against the patient's face due to the action of the rope after the sealed cavity expands. This improves the adaptability of the inner mask edge to different patient facial contours (such as a sunken nose bridge, prominent cheekbones, etc.), thereby ensuring the sealing of the inner mask breathing cavity, significantly reducing the oxygen leakage rate, and ensuring the oxygen therapy effect of the hyperbaric oxygen chamber on the patient, providing reliable technical support for the patient's hyperbaric oxygen therapy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 1 is a schematic structural diagram of an anti-collapse inflatable oxygen-absorbing mask according to embodiment 1 of the present invention; Figure 2 2 is a schematic structural diagram of an anti-collapse inflatable oxygen-inhaling mask according to a second embodiment of the present invention, viewed from a first perspective; Figure 3 2 is a schematic structural diagram of an anti-collapse inflatable oxygen-absorbing mask according to a second embodiment of the present invention at a second viewing angle; Figure 4 2 is a schematic structural diagram of the anti-collapse inflatable oxygen-absorbing mask embodiment 2 of the present invention after the connector is removed; Figure 5 1 is a schematic structural diagram of a third embodiment of an anti-collapse inflatable oxygen-absorbing mask according to the present invention; Figure 6 3 is a schematic structural diagram of the anti-collapse inflatable oxygen-absorbing mask of Example 3 of the present invention after the protective layer is removed; Figure 72 is a schematic structural diagram of Example 4 of the anti-collapse inflatable oxygen-inhaling mask of the present invention.

[0019] In the figure: 1-inner cover; 2-inlet pipe; 3-outlet pipe; 4-rope; 5-sealing chamber; 6-breathing chamber; 7-valve; 8-connector; 9-outer cover; 10-air hole; 11-window; 12-flexible belt; 13-airbag; 14-flexible strip; 15-protective layer. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0023] In the description of this application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not necessarily imply that a component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical" and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0025] It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] Example 1: The present invention provides an anti-collapse inflatable oxygen-inhaling mask.

[0027] In one embodiment of the present invention, the anti-collapse inflatable oxygen mask includes an inner mask 1, an air inlet pipe 2 and an air outlet pipe 3. The inner mask 1 is provided with a rope 4. The inner mask 1 is used to cover the patient's mouth and nose, and a sealed cavity 5 is formed at the position where the inner mask 1 is in contact with the patient's face. The inner cavity of the inner mask 1 is a breathing cavity 6. The air inlet pipe 2 is used to transport oxygen to the sealed cavity 5 and the breathing cavity 6, so that the air pressure of the breathing cavity 6 is greater than the air pressure in the hyperbaric oxygen chamber through the air inlet pipe 2. The air outlet pipe 3 is connected with the sealed cavity 5 and the breathing cavity 6, and valves 7 are provided on both the air inlet pipe 2 and the air outlet pipe 3.

[0028] Specifically, if Figures 1 to 7As shown, in the anti-collapse inflatable oxygen mask of the present invention, since a loop 4 is provided on the inner mask 1, the patient can put the loop 4 on the head so that the inner mask 1 covers the mouth and nose, and the loop 4 can be made of an elastic band or Velcro, etc., thereby allowing the inner mask 1 to fit closely to the patient's facial contours, ensuring that the patient's mouth and nose are completely contained within the breathing cavity 6 of the inner mask 1, effectively preventing the displacement of the inner mask 1 due to changes in air pressure in the hyperbaric oxygen chamber or movement of the patient. Furthermore, a sealing cavity 5 is formed at the position where the inner mask 1 contacts the patient's face. That is, during the production process of the anti-collapse inflatable oxygen mask of the present invention, a hollow annular silicone trachea can be bonded or integrally formed at the edge where the inner mask 1 contacts the patient's face, and the inner cavity of the trachea serves as the sealing cavity 5. The structural design is simple and reasonable. It can be understood that during use of the anti-collapse inflatable oxygen mask of the present invention, since valves 7 are provided on both the air inlet pipe 2 and the air outlet pipe 3, the patient can operate the control valve 7 so that the air inlet pipe 2 can deliver the oxygen output by the oxygen supply equipment in the hyperbaric oxygen chamber to the sealed cavity 5 and the breathing cavity 6. That is, after the patient opens the valve 7 of the air inlet pipe 2, oxygen enters the sealed cavity 5, causing the sealed cavity 5 to gradually fill with oxygen and expand, thereby reducing the squeezing of the inner mask 1 on the patient's face and improving the comfort of the patient wearing the inner mask 1; at the same time, after the sealed cavity 5 is filled with oxygen, the oxygen enters the breathing cavity 6 for the patient to breathe and perform oxygen therapy, and the patient simultaneously opens the valve 7 of the air outlet pipe 3, and the gas exhaled by the patient is discharged from the air outlet pipe 3 and sent back to the oxygen supply equipment of the hyperbaric oxygen chamber for collection, thereby completing the oxygen therapy process for the patient.

[0029] It should be noted that the valve 7 can be a three-way valve in the prior art, that is, the valve body of the valve 7 has an inlet and two outlets. The patient can control whether the air inlet pipe 2 or the air outlet pipe 3 is connected to the sealed chamber 5 or the breathing chamber 6 by operating the valve 7. For example, after the patient wears the inner mask 1, the patient can operate the valve 7 to make the air inlet pipe 2 only connected to the sealed chamber 5 (at this time, the valve 7 of the air outlet pipe 3 is closed to ensure the sealing of the sealed chamber 5), so that the sealed chamber 5 can be gradually expanded to support the inner mask 1; after the sealed chamber 5 is expanded to its full extent, the patient operates the valve 7 to make the air inlet pipe 2 only connected to the breathing chamber 6, so that oxygen can be transported into the breathing chamber 6 through the air inlet pipe 2 (at this time, the valve 7 of the air outlet pipe 3 is in a state of sealing the sealed chamber 5, so that the breathing chamber 6 and The oxygen supply equipment of the hyperbaric oxygen chamber is used to discharge the gas exhaled by the patient into the breathing chamber 6 to ensure the oxygen concentration in the breathing chamber 6), and the patient adjusts the oxygen supply equipment of the hyperbaric oxygen chamber so that the air pressure in the breathing chamber 6 is greater than the air pressure in the hyperbaric oxygen chamber, thereby being able to firmly support the inner mask 1, which not only effectively avoids the inner mask 1 from being squeezed and deformed by the pressure in the chamber and prevents the oxygen in the breathing chamber 6 from leaking, but also significantly improves the effective oxygen supply, reduces the waste of medical resources and improves the oxygen therapy efficiency for the patient, ensuring a good oxygen therapy effect for the patient; at the same time, since the volume of the breathing chamber 6 is not compressed and deformed due to the pressure in the chamber, the patient does not need to exert extra force to resist respiratory tract compression, reduces respiratory muscle fatigue, and ensures the safety and reliability of oxygen therapy.

[0030] Furthermore, it is worth noting that, since the sealed cavity 5, after expansion, can be used by the lanyard 4 to allow the edge of the inner mask 1 to fit tightly against the patient's face, the inner mask 1 edge can be more adaptable to different patient facial contours (such as a sunken nose bridge, prominent cheekbones, etc.), thereby ensuring the sealing of the breathing cavity 6 of the inner mask 1, significantly reducing the oxygen leakage rate, ensuring the oxygen therapy effect of the hyperbaric oxygen chamber on the patient, and providing reliable technical support for the patient's hyperbaric oxygen therapy. Actual use results show that, compared to traditional oxygen masks, the anti-collapse inflatable oxygen mask of the present invention has an oxygen leakage rate of less than 5% (traditional oxygen masks have a leakage rate of 20%-35%) and increases blood oxygen saturation by 15%-20%.

[0031] Example 2: This embodiment is based on the embodiment 1, and is a further improved and refined design made to increase / optimize the structural function. Figures 1 to 3 Preferably, the anti-collapse inflatable oxygen mask of the present invention further includes a connector 8 and an outer cover 9. The inner cover 1 is provided with a connector 8 along its edge for contacting the patient's face. The connector 8 is connected to the edge of the outer cover 9 to enclose a sealed cavity 5 with the inner cover 1. The air pressure in the sealed cavity 5 is greater than the air pressure in the breathing cavity 6 through the air inlet pipe 2. The outer cover 9 is provided with a rope 4. The outer cover 9 is connected to the inner cover 1 and is used to cover the patient's face.

[0032] Specifically, in this embodiment, an inner mask 1 is positioned within an outer mask 9 and positioned to cover the patient's mouth and nose to form a breathing chamber 6. Since the inner mask 1 is provided with a connector 8 along its edge for contact with the patient's face, which can be made of a medical silicone sheet, for example, by connecting the edge of the connector 8 to the edges of the inner mask 1 and outer mask 9, a closed, sealed chamber 5 is formed, resulting in a simple and rational structural design. Furthermore, both the inner mask 1 and outer mask 9 can be made of lightweight, transparent composite materials, allowing medical staff to directly observe the patient's mouth and nose, allowing for real-time monitoring of the patient's breathing status, mask fogging, or emergency situations (such as vomiting), thereby enhancing treatment safety. Furthermore, the outer mask 9 completely covers the patient's face, creating a sealed space between the outer mask 9 and the patient's face. This isolates the high-humidity air within the hyperbaric oxygen chamber, effectively preventing the patient's eyes and facial skin from prolonged exposure to dry conditions and improving treatment comfort.

[0033] The air inlet 2 and the air outlet 3 are in close contact with the patient's face, and the pressure of the air inlet 2 is greater than that of the air in the air inlet 2. The air inlet 2 and the air outlet 3 are in close contact with the patient's face, and the pressure of the air inlet 2 is greater than that of the air in the air inlet 2.

[0034] In this embodiment, Figures 1 to 4 As shown, one end of the inlet pipe 2 and the outlet pipe 3 are each provided with an air hole 10 that communicates with the sealed chamber 5. A valve 7 is used to open or close the air hole 10. The other ends of the inlet pipe 2 and the outlet pipe 3 are connected to the oxygen supply equipment of the hyperbaric oxygen chamber. Specifically, the patient operates the valve 7 to open or close the air hole 10 on the inlet pipe 2 and the outlet pipe 3. This allows oxygen to be stably and smoothly delivered to the sealed chamber 5 to support the outer cover 9 and apply pressure to the inner cover 1. It can also be discharged through the outlet pipe 3, facilitating the adjustment of the air pressure in the sealed chamber 5 and achieving the rapid pressure relief function of the sealed chamber 5. The structural design is simple and reasonable.

[0035] In this embodiment, the outer cover 9 and the connecting member 8 are respectively provided with windows 11 for the patient's line of sight, and a transparent baffle is provided at the window 11 of the outer cover 9; a flexible belt 12 is provided along the edge of the outer cover 9; and a set of ropes 4 are provided at the top and bottom of the outer cover 9. Specifically, Figures 2 to 4 As shown, by providing windows 11 in the outer cover 9 and connector 8, and using curved tempered glass or other materials as transparent baffles, the patient's visual impairment caused by the outer cover 9 can be eliminated, thereby improving the patient's clarity of vision when observing the surrounding environment. Furthermore, by providing a flexible band 12 along the edge of the outer cover 9, which can be made of medical silicone tape, etc., the patient's facial comfort when in contact with the outer cover 9 can be improved. In addition, by providing a lanyard 4 at the top and bottom of the outer cover 9, the stability of the outer cover 9 can be significantly improved, ensuring reliable use.

[0036] Example 3: This embodiment is a further improved and refined design based on Example 1 in order to increase / optimize the structural function. Preferably, the anti-collapse inflatable oxygen mask of the present invention also includes an outer cover 9 and a plurality of air bags 13. The inner cavity of the plurality of air bags 13 is a sealing cavity 5, and the inner cavity of the inner cover 1 is a breathing cavity 6. The air pressure of the sealing cavity 5 is greater than the air pressure of the breathing cavity 6 through the air inlet pipe 2. The inner cover 1 is provided with a flexible strip 14 along its edge, and a plurality of air bags 13 are evenly and spaced apart on the outer wall of the inner cover 1.

[0037] Specifically, if Figure 1 、 Figure 5 and Figure 6As shown, in this embodiment, by evenly and spaced apart arrangement of the air bags 13 on the outer wall of the inner cover 1, that is, the air bags 13 are located between the inner cover 1 and the outer cover 9, and the air bags 13 are connected to the air inlet pipe 2, the air bags 13 can be filled with oxygen under the action of the air inlet pipe 2 and the air pressure in the sealed cavity 5 is made greater than the air pressure in the breathing cavity 6 (the operation and control principle of the valves 7 on the air inlet pipe 2 and the air outlet pipe 3 is the same as that in embodiment 1 and will not be described in detail here), and thus a plurality of evenly arranged high-pressure support points can be constructed between the inner cover 1 and the outer cover 9. The coordinated action of these support points can not only provide even and comprehensive support force to the outer cover 9, ensuring that the outer cover 9 maintains a rigid shape under the high-pressure environment of the hyperbaric oxygen chamber and avoids collapse and deformation, but also apply even downward pressure to the inner cover 1, ensuring that the edge of the inner cover 1 fits tightly against the patient's face. In addition, since the inner mask 1 is provided with a flexible strip 14 along its edge, the flexible strip 14 can be a medical silicone strip. When the inner mask 1 is pressed downward toward the patient's face by the action of the plurality of airbags 13, the flexible strip 14 elastically deforms, thereby buffering the downward pressure of the plurality of airbags 13 on the inner mask 1, thereby preventing the inner mask 1 from collapsing and deforming. This not only improves the comfort of the patient wearing the mask, but also effectively prevents oxygen leakage in the breathing chamber 6, thereby reducing the waste of medical resources and improving the oxygen treatment efficiency for the patient. It should be noted that since the inner cavity of the plurality of airbags 13 is a sealed cavity 5, if a certain airbag 13 is damaged, the medical staff only needs to replace the corresponding damaged airbag 13 to meet the recycling of the anti-collapse inflatable oxygen mask of the present invention, reducing the cost of use and having good economic efficiency.

[0038] In this embodiment, the edges of the inner cover 1 and the outer cover 9 are connected with a protective layer 15 for shielding a plurality of airbags 13. It can be understood that Figure 1 、 Figure 5 and Figure 6 As shown, the protective layer 15 can not only shield the airbags 13, preventing the airbags 13 from being damaged by scratches or punctures from external objects, thereby extending the service life of the airbags 13, but also provide protection for the patient when the airbags 13 explode due to over-inflation, thereby significantly improving the safety of the anti-collapse inflatable oxygen mask of the present invention.

[0039] Example 4: This embodiment is a further improved and refined design based on the embodiment 1 in order to increase / optimize the structural function. Figures 1 to 7 As shown, the top edges of the outer cover 9 and the inner cover 1 are flush with each other, which not only completely prevents the outer cover 9 or the inner cover 1 from blocking the patient's line of sight, making it easier for the patient to see and know the surrounding environment, but also reduces the pressure of the outer cover 9 on the patient's entire face, thereby improving the patient's wearing comfort.

[0040] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An anti-collapse inflatable oxygen mask, characterized in that: The invention comprises an inner cover (1), an air inlet pipe (2) and an air outlet pipe (3), wherein a rope (4) is provided on the inner cover (1), the inner cover (1) is used to cover the patient's mouth and nose, and a sealed cavity (5) is formed at a position where the inner cover (1) contacts the patient's face, the inner cavity of the inner cover (1) is a breathing cavity (6), the air inlet pipe (2) is used to transport oxygen to the sealed cavity (5) and the breathing cavity (6), so that the air pressure of the breathing cavity (6) is greater than the air pressure in the hyperbaric oxygen chamber through the air inlet pipe (2), the air outlet pipe (3) is communicated with the sealed cavity (5) and the breathing cavity (6), and valves (7) are provided on both the air inlet pipe (2) and the air outlet pipe (3).

2. The anti-collapse inflatable oxygen mask according to claim 1, characterized in that: The invention also includes a connecting piece (8) and an outer cover (9), wherein the inner cover (1) is provided with the connecting piece (8) along its edge for contacting the patient's face, the connecting piece (8) is connected to the edge of the outer cover (9) to enclose the sealed cavity (5) with the inner cover (1), and the air pressure of the sealed cavity (5) is made greater than the air pressure of the breathing cavity (6) through the air inlet pipe (2); the outer cover (9) is provided with the rope (4), and the outer cover (9) is connected to the inner cover (1) and is used to cover the patient's face.

3. The anti-collapse inflatable oxygen mask according to claim 2, characterized in that: One end of the air inlet pipe (2) and the air outlet pipe (3) is respectively provided with an air hole (10) communicating with the sealed cavity (5); the valve (7) is used to open or close the air hole (10); the other end of the air inlet pipe (2) and the air outlet pipe (3) is used to communicate with the oxygen supply equipment of the hyperbaric oxygen chamber.

4. The anti-collapse inflatable oxygen mask according to claim 3, characterized in that: The outer cover (9) and the connecting member (8) are respectively provided with windows (11) for the patient's line of sight to pass through, and a transparent baffle is provided at the window (11) of the outer cover (9); the outer cover (9) is provided with a flexible belt (12) along its edge; and the top and bottom of the outer cover (9) are both provided with the rope (4).

5. The anti-collapse inflatable oxygen mask according to claim 1, characterized in that: The invention also includes an outer cover (9) and a plurality of air bags (13), wherein the inner cavities of the plurality of air bags (13) are the sealed cavities (5), the inner cavities of the inner cover (1) are the breathing cavities (6), and the air pressure of the sealed cavities (5) is made greater than the air pressure of the breathing cavities (6) through the air inlet pipe (2), the inner cover (1) is provided with a flexible strip (14) along its edge, and the outer wall of the inner cover (1) is evenly and spaced apart.

6. The anti-collapse inflatable oxygen mask according to claim 5, characterized in that: The edges of the inner cover (1) and the outer cover (9) are connected with a protective layer (15) for shielding a plurality of the airbags (13).

7. The anti-collapse inflatable oxygen mask according to any one of claims 2 to 6, characterized in that: The top edges of the outer cover (9) and the inner cover (1) are flush with each other.

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