An integrated non-invasive oxygen mask

Abstract

The present invention discloses an integrally formed non-invasive oxygen mask, comprising a containing body, which is provided with an air inlet and an air outlet, a neck guard being integrally formed and connected on the inner wall near the opening of the containing body, an air leakage-proof barrier sheet being integrally formed and connected on the inner wall of the containing body and located above the neck guard or on the upper part of the neck guard, the neck guard comprising a neck guard bottom sheet and neck guard fabric, the neck guard fabric being provided with air bags, each of the air bags being air-connected to each other, one side of the air bag protruding to form an air bag convex portion, and the other side being correspondingly concave to form an air bag groove portion, a connecting portion being provided between two adjacent air bags so that an extrusion space is formed between the two adjacent air bag protrusions, the size of the air bag and the extrusion space can be adjusted when the neck guard is inflated, and the patient can wear it directly without the need for the complicated steps similar to the protective mask in the prior art, the product having a simple structure, high production efficiency and low cost, is conducive to market promotion and market competition.

Description

Technical field

[0002] The invention relates to the technical field of protective masks, in particular to an integrally formed non-invasive oxygen mask. [Background Technology]

[0004] A Chinese patent (publication number CN102238976A) discloses a shield for non-invasive ventilation of patients. Specifically, the following contents are disclosed in the specification [paragraphs 0021-0023]: The characteristic of the present invention is that a ring body represented by the reference numeral 20 is provided. Figures 1 to 4 In the embodiment shown, the annular body is formed of two semicircles 21 and 22 connected to one another by a pivoting arrangement formed by a pivot pin 24 and having a coupling means at the other end consisting of a tab 25a arranged at one end and insertable into a slot 25b arranged at the opposite end. The annular body can be provided by a substantially rigid member or, alternatively, by a member having a certain degree of flexibility, advantageously by a plate made of a plastic material such as polyvinyl chloride, polypropylene, acrylonitrile-butadiene-styrene, polyoxymethylene, the commercially known Delrin, or other copolymers. The annular body 20 is provided with means for fixing to the containment body 2, which in a possible embodiment consist of radial tabs 27 fixed or heat-sealed to the annular body or forming part of the annular body 20 and having through-holes 28 for providing a stable connection with coupling pins 29 provided on the rigid ring 3 at the base of the containment body. Due to the flexible component of the ring 20 that mates with the housing, the ring is essentially rigid and suitable for use with the intermediate cushion 8 as an abutment for the collar 10. According to an embodiment conceptually related to the previous embodiment, the ring, designated by reference numeral 20', can be formed in one piece with a closable notch 26, enabling the ring to be positioned around the patient's neck by exploiting the flexibility of the material. The tabs 27 can be inserted into coupling slots 30 provided on the cushion 8, or alternatively, the cushion 8 can be heat-sealed or mated directly to the ring 20 or 20'. Furthermore, the two-part or one-piece ring 20 or 20' has a soft protective edge 31 on its inner edge; an outer protective edge 32 can optionally be provided on its outer edge.

[0005] As can be seen from the above, the base of the housing body is fixedly connected to the collar via a rigid ring. The rigid ring is provided with a connecting pin, which is assembled with the through-hole of the radial protrusion on the liner to complete the fixation. Therefore, there are the following defects: 1. The shield is split, and the stability and airtightness after the components are connected are poor; 2. The donning steps are numerous and complicated, which is not convenient for patients to wear; 3. As can be seen from the accompanying drawings, the base of the housing body is provided with a rigid ring and the inner edge of the annular body includes a soft protective edge. Both the rigid ring and the soft protective edge will exert a certain degree of restraint on the liner during inflation. In other words, its flexibility is poor and it cannot be worn by different patients, and its versatility is low. 4. The shield of the prior art is assembled from multiple components, resulting in low assembly efficiency and high production costs, which is not conducive to market promotion. Therefore, the invention is made based on the shortcomings of the above products. [Summary of the invention]

[0007] To solve the above problems, the present invention provides an integrally formed non-invasive oxygen mask, which has the advantages of being easy to wear, highly flexible and having good airtightness.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A one-piece non-invasive oxygen mask includes a housing body 1 having an opening at its bottom for inserting the patient's head, the housing body 1 having an air inlet 11 and an air outlet 12, an inflatable or deflated neckband 2 integrally connected to the inner wall near the opening of the housing body 1, an annular and flexible air leakage-proof barrier sheet 3 integrally connected to the inner wall of the housing body 1 and located above the neckband 2 or on the upper part of the neckband 2, the neckband 2 includes a neck bottom sheet 22 integrally formed with the inner wall of the housing body 1 and a neck fabric 26 integrally formed with the neck bottom sheet 22, the neck fabric 26 is provided with a plurality of spaced and annularly distributed on the inner circumference of the side wall of the housing body 1. The airbags 21 are connected to each other by air. One side of the airbag 21 is protruded to form an airbag protrusion 20, and the other side is correspondingly recessed to form an airbag groove 23. A connecting portion 24 is provided between two adjacent airbags 21 so that an extrusion space 25 is formed between the two adjacent airbag protrusions 20. The airbag protrusions 20 and the extrusion spaces 25 are staggered with each other and are distributed in a ring shape on the inner circumference of the side wall of the accommodating body 1. The size of the airbags 21 and the extrusion spaces 25 can be adjusted when the scarf 2 is inflated. The scarf 2 is mainly made of the scarf base film 22 covering the notch of each airbag groove 23 and welding them into one body, and then welding the head and tail ends of the scarf base film 22 into a ring.

[0010] As a preferred embodiment, it is further defined as follows: the container body 1 is mainly composed of a top sheet 14 and transparent side surrounding sheets 13 .

[0011] As a preferred embodiment, it is further defined as follows: the side surrounding sheets 13 are formed into a cylindrical shape by welding rectangular sheets end to end, and the top sheet 14 is circular and welded to the top of the side surrounding sheets 13 as a whole.

[0012] As a preferred embodiment, it is further defined as: the neckband 2 is welded to the base circumference of the side surrounding sheet 13, and the left and right ends of the side surrounding sheet 13 are welded together so that the side surrounding sheet 13 forms a hollow accommodating body 1 for accommodating the patient's head, and the neckband 2 is located inside the accommodating body 1.

[0013] As a preferred embodiment, it is further defined as: the anti-leakage barrier sheet 3 includes an anti-leakage barrier sheet main body 31 and a disc-shaped skirt 32 arranged at the upper end of the anti-leakage barrier sheet main body 31 and expanding outward to form a disc, the skirt 32 can be fitted with the upper end surface of the neckband 2, and the anti-leakage barrier sheet main body 31 can be fitted with the inner side surface of the neckband 2.

[0014] As a preferred embodiment, it is further defined as: the anti-leakage barrier sheet main body 31 extends out of the opening of the accommodating body 1 along its axial direction, one side of the anti-leakage barrier sheet 3 can cover the extrusion space 25, and the other side of the anti-leakage barrier sheet 3 can fit the patient's neck.

[0015] As a preferred embodiment, it is further defined as follows: the neckband 2 is integrally or externally connected with an inflation device 4 , and the inflation device 4 inflates the airbag 21 through a neckband air nozzle 41 .

[0016] As a preferred embodiment, it is further defined as follows: the air inlet 11 and the air outlet 12 are both provided with a connecting piece 10 , and there are two air inlets 11 and two air outlets 12 .

[0017] As a preferred embodiment, it is further defined as: a single row or multiple rows of the airbags 21 are distributed in a ring shape on the inner circumference of the side wall of the accommodating body 1, and the multiple rows of the airbags 21 are distributed at intervals in the upper and lower directions, and a connecting portion 24 is provided between two adjacent airbag protrusions 20 in the same longitudinal direction so that an extrusion space 25 is formed between the two adjacent airbag protrusions 20.

[0018] As a preferred embodiment, it is further defined as follows: the material of the container body 1, the air leakage-proof barrier sheet 3 and the neckband 2 are all TPU.

[0019] The beneficial effects of the present invention are:

[0020] 1. When inflated, the two air bags expand and squeeze each other to fill the squeeze space, thereby enhancing the air tightness of the containment body and preventing air leakage. In addition, the squeeze space can provide the air bags with a surplus expansion space to maximize the deformation of the neckband for different patients to wear, thereby increasing a certain degree of flexibility and thus increasing the comfort of the patient when wearing it; the containment body, the anti-leakage barrier sheet and the neckband have a certain flexibility, and the containment body, the anti-leakage barrier sheet and the neckband are welded together by a welding machine. When wearing, the patient's head is put into the containment body through the neckband, and then the neckband is inflated so that the neckband acts as the anti-leakage barrier sheet and is tightly attached to the patient's neck, thereby playing an airtight role; in addition, the containment body, the anti-leakage barrier sheet and the neckband of this product are welded together by a hot melt machine and can be directly worn by the patient without the cumbersome steps similar to the existing protective shield. The structure of this product is simple, the production efficiency is high and the cost is low, which is conducive to market promotion and market competition.

[0021] 2. The container body is mainly composed of rectangular sheets welded end to end to form cylindrical side sheets and a circular top sheet welded on top of the side sheets. This manufacturing method has simple steps, high production efficiency and low cost.

[0022] 3. The air leakage prevention barrier sheet includes an air leakage prevention barrier sheet main body and a disc-shaped skirt arranged at the upper end of the air leakage prevention barrier sheet main body and expanding outward to form a disc-shaped skirt. The skirt can fit with the upper end surface of the neckband, and the air leakage prevention barrier sheet main body can fit with the inner side surface of the neckband. The air leakage prevention barrier sheet main body extends out of the opening of the accommodating body along its axial direction, which can improve the close fit between the air leakage prevention barrier sheet and the neckband, and further increase the air tightness when worn by the patient.

Brief Description of the Drawings

[0024] Figure 1 This is one of the structural diagrams created by the present invention;

[0025] Figure 2 This is the second structural diagram of the present invention;

[0026] Figure 3 It is an exploded view of the invention;

[0027] Figure 4 It is a cross-sectional view of the present invention;

[0028] Figure 5 yes Figure 4 A magnified view of point A;

[0029] Figure 6 This is one of the structural diagrams when the neck scarf is in a long strip shape;

[0030] Figure 7This is the second diagram showing the structure of the scarf when it is in a long strip shape;

[0031] Figure 8 is a structural diagram showing the distribution of a single-row airbag on the inner peripheral surface of the side wall of the housing body after deployment;

[0032] Figure 9 is a structural diagram showing that multiple rows of air bags are distributed on the inner peripheral surface of the side wall of the housing body after deployment;

[0033] Figure 10 It is a process flow chart created by the present invention. [Specific implementation method]

[0035] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0036] As attached Figure 1 To the attached Figure 10As shown, an integrally formed non-invasive oxygen mask includes a containing body 1 with an opening at the bottom for the patient's head to extend into, the containing body 1 has an air inlet 11 and an air outlet 12, the air inlet 11 and the air outlet 12 are both provided with a connector 10, and the air inlet 11 and the air outlet 12 are both provided with two, and a neck girdle 2 that can be inflated or deflated is integrally formed and connected on the inner wall near the opening of the containing body 1, and a ring-shaped and flexible air leakage-proof barrier sheet 3 is integrally formed and connected on the inner wall of the containing body 1 and above the neck girdle 2 or on the upper part of the neck girdle 2, the neck girdle 2 includes a neck bottom sheet 22 integrally formed with the inner wall of the containing body 1 and a neck fabric 26 integrally formed with the neck bottom sheet 22, and the neck fabric 26 is provided with several The airbags 21 are spaced apart and distributed in a ring shape on the inner circumference of the side wall of the containing body 1, and each of the airbags 21 is gas-connected to each other. One side of the airbag 21 is protruded to form an airbag protrusion 20, and the other side is correspondingly recessed to form an airbag groove 23. A connecting portion 24 is provided between two adjacent airbags 21 so that an extrusion space 25 is formed between the two adjacent airbag protrusions 20. The airbag protrusions 20 and the extrusion spaces 25 are staggered with each other and distributed in a ring shape on the inner circumference of the side wall of the containing body 1. The size of the airbags 21 and the extrusion spaces 25 can be adjusted when the scarf 2 is inflated. The scarf 2 is mainly made of the scarf base film 22 covering the notch of each airbag groove 23 and welding them into one body, and then the head and tail ends of the scarf base film 22 are welded into a ring. When inflated, the two airbags 21 expand and squeeze each other to fill the squeezing space 25, thereby enhancing the air tightness of the container body 1 and preventing air leakage. In addition, the squeezing space 25 can provide the airbags 21 with a surplus of expansion space to maximize the deformation of the neckband 2 for different patients to wear, thereby increasing a certain degree of flexibility and thus increasing the patient's comfort when wearing it; the material of the container body 1, the anti-leakage barrier sheet 3 and the neckband 2 are all TPU thermoplastic polyurethane elastomer, also known as thermoplastic polyurethane rubber, so that the container body 1, the anti-leakage barrier sheet 3 and the neckband 2 have a certain Flexible, the containing body 1, the anti-leakage barrier sheet 3 and the neckband 2 are welded into one by a welding machine. When wearing, the patient's head is put into the containing body 1 through the neckband 2, and then the neckband 2 is inflated so that the neckband 2 acts as the anti-leakage barrier sheet 3 and fits tightly against the patient's neck, thereby playing an airtight role; in addition, the containing body 1, the anti-leakage barrier sheet 3 and the neckband 2 of this product are welded into one by a hot melt machine, and can be directly worn by the patient without the need for cumbersome steps like the protective shields in the prior art. The product has a simple structure, high production efficiency and low cost, which is conducive to market promotion and market competition.

[0037] As attached Figure 6 and attached Figure 7As shown, specifically, the manufacturing process of the scarf 2 is as follows: first, the TPU sheet is passed through a jig, and then the TPU sheet is adsorbed by a vacuum forming machine to form an airbag 21 group with a concave end face forming an airbag groove part 23 and a protruding other end face forming an airbag protrusion part 20. Finally, the TPU scarf bottom sheet 22 is laid flat on the concave end face, and the two are welded together by a welding machine. The scarf 2 can be completed. The manufacturing process steps are simple and easy to mass produce.

[0038] As attached Figure 4 , Attachment Figure 8 and attached Figure 9 As shown, the container body 1 is mainly composed of side sheets 13 and a top sheet 14. The side sheets 13 are formed by welding rectangular sheets end to end into a cylindrical shape. The top sheet 14 is circular and welded to the top of the side sheets 13 as a whole. Figure 4 , Attachment Figure 8 and attached Figure 9 As shown, the neck girdle 2 is welded to the base circumference of the side wrapping sheet 13, and the left and right ends of the side wrapping sheet 13 are welded together to form a hollow receiving body 1 for receiving the patient's head, and the neck girdle 2 is located inside the receiving body 1. This manufacturing method has simple steps, high production efficiency and low cost.

[0039] As attached Figure 2 and attached Figure 3 As shown, the air leakage barrier sheet 3 includes an air leakage barrier sheet body 31 and a disc-shaped skirt 32 disposed at the upper end of the air leakage barrier sheet body 31 and flaring outward. The skirt 32 can fit the upper end surface of the neckband 2, and the air leakage barrier sheet body 31 can fit the inner side surface of the neckband 2. The air leakage barrier sheet body 31 extends axially out of the opening of the receiving body 1. When the neckband 2 is inflated, one side of the air leakage barrier sheet 3 can cover the squeeze space 25, and the other side of the air leakage barrier sheet 3 can fit the patient's neck. This can improve the tight fit between the air leakage barrier sheet 3 and the neckband 2, further enhancing the airtightness when worn by the patient.

[0040] As attached Figure 4 and attached Figure 5 As shown, the scarf 2 is integrally or externally connected with an inflation device 4, and the inflation device 4 inflates the air bag 21 through a scarf air nozzle 41. The scarf air nozzle 41 is connected to one end of the trachea, and the other end of the trachea is connected to a press-type inflation bag through an adjusting valve body. The scarf 2 can be inflated by manually pressing the inflation bag, and the scarf 2 can be deflated by adjusting the valve body. The operation is simple and convenient for users to use.

[0041] As attached Figure 8 , Attachment Figure 9 As shown, a single row or multiple rows of the airbags 21 are distributed in a ring shape on the inner circumference of the side wall of the containing body 1. The multiple rows of airbags 21 are distributed at intervals in the upper and lower directions. There is a connecting portion 24 between two adjacent airbag protrusions 20 in the same longitudinal direction, so that an extrusion space 25 is formed between the two adjacent airbag protrusions 20. The multiple rows of airbags 21 can further increase the airtightness of the containing body 1.

[0042] As attached Figure 10 As shown, the present invention also provides a manufacturing process for an integrated non-invasive oxygen mask, comprising the following steps:

[0043] S1, cutting the first and second raw materials required for manufacturing the oxygen mask: Select the first and second raw materials, the first raw material being a transparent plastic sheet or a transparent rubber sheet, and the second raw material being a flexible sealing material, cut the first raw material into a top sheet 14, side sheets 13, and a neck bottom sheet 22, respectively, and cut the second raw material into an air leakage-proof barrier sheet 3;

[0044] S2, opening air inlet holes and air outlet holes: opening a plurality of air inlet holes and air outlet holes on the side panel 13;

[0045] S3, assembling and fixing the connecting piece 10: inserting the connecting piece 10 into the side panel air inlet and the side panel air outlet, and welding the connecting piece 10 to the side panel sheet 13;

[0046] S4, manufacturing the neck fabric 26: selecting a third raw material, which is a plastic sheet or a rubber sheet, and placing the third raw material on a blister machine. The blister machine forms the flat third raw material into a plurality of spaced and raised airbag protrusions 20 on one side and a plurality of corresponding airbag grooves 23 on the other side, thereby forming airbags 21. A connecting portion 24 is provided between the bottoms of two adjacent airbag protrusions 20, so that an extrusion space 25 is formed between the two adjacent airbag protrusions 20;

[0047] S5, manufacturing the neckband 2: welding the neckband base sheet 22 and the neckband fabric 26 on the side of the airbag groove portion 23 together using a welding machine, so that all the airbag groove portions 23 are connected and form an airbag cavity;

[0048] S6, welding the neck gas nozzle 41: opening a hole for the neck gas nozzle 41 on the neck girdle 2, passing the neck gas nozzle 41 through the hole, and then welding the neck gas nozzle 41 to the neck girdle 2 using a welding machine;

[0049] S7, integrally fixing the neckband 2: welding the neckband bottom sheet 22 of the neckband 2 to the lower ends of the side wrapping sheets 13 into one piece, so that the connecting portion 24 and the extrusion space 25 face the side away from the side wrapping sheets 13;

[0050] S8, manufacturing a barrel-shaped side panel, welding the two ends of the side panel sheet 13 together, so that the side panel sheet 13 forms a hollow barrel-shaped side panel, and the neckband 2 is located inside the barrel-shaped side panel, so that the plurality of connecting portions 24 and the plurality of extrusion spaces 25 are distributed in an annular shape inside the barrel-shaped side panel;

[0051] S9, welding the air leakage barrier sheet 3: welding the two ends of the air leakage barrier sheet 3 together along its length direction and welding it to the upper end of the neck bib 2 or the side periphery sheet 13 and above the inner wall surface of the upper end of the neck bib 2;

[0052] S10, manufacturing a receiving body 1 for receiving the patient's head: welding the top sheet 14 to the end of the side sheet 13 away from the neckband 2, so that the top sheet 14 and the side sheet 13 form a hollow receiving body 1 for receiving the patient's head;

[0053] S11 , assembling the inflation and deflation device: connecting the device for inflating and deflation of the neckband 2 to the neckband air nozzle 41 , thereby adjusting the size of the airbag 21 and the squeezing space 25 .

[0054] Furthermore, in step S6, the neck air nozzle 41 can be welded to the neck bottom film 22, or it can be welded to the air bag protrusion 20 of the neck 2 fabric; in the present embodiment, the neck air nozzle 41 is welded to the neck bottom film 22, and the neck air nozzle 41 also passes through the side sheet 13 to be exposed to the outside, and the neck air nozzle 41 is also welded to the side sheet 13 to facilitate the assembly of the inflation and deflation device; of course, the neck air nozzle 41 can also be set at the lower end of the air bag protrusion 20, so that the neck air nozzle 41 is not blocked by the side sheet 13 and is directly exposed, and the inflation and deflation device can be assembled directly. This technical solution is a replacement for step S6 and is also included in the scope of protection of the present invention.

[0055] Furthermore, in step S7, the neck bottom film 22 of the neck scarf 2 is connected to the side of the side sheet 13 away from the side connected to the connecting piece 10, and the left and right ends and the lower end of the neck scarf 2 and the side sheet 13 are aligned. Of course, it can also be set to a situation where the lower end is not aligned. This technical solution is a replacement for step S7 and is also included in the scope of protection of the present invention.

[0056] Furthermore, in step S9, the upper end of the air leakage-proof barrier sheet 3 is welded to the outer peripheral surface of the neck girdle 2 or the inner wall surface of the side surrounding sheet 13 by a welding machine; the welding machine is a high-frequency plastic welding machine or an ultrasonic welding machine. The welding and welding of the welding machine make the connection tight, and there is no gap between the neck girdle 2 and the side surrounding sheets 13, avoiding air leakage and the like, so that the side surrounding sheets 13 can only communicate with the outside world through the space formed by the air leakage-proof barrier sheet 3, but cannot communicate with the outside world through the neck girdle 2 or the side surrounding sheets 13, thereby improving the airtightness of the container body and effectively protecting the patient's personal safety.

[0057] Furthermore, not only can the anti-leakage barrier sheet 3 be welded in the manner of step S9, but the following welding and assembly method can also be adopted: after fixing the neckband 2 in step S7, the anti-leakage barrier sheet 3 is directly welded to the upper end of the neckband 2 or the side sheet 13 and is higher than the inner wall surface of the upper end of the neckband 2, so that in step S8, the two ends of the anti-leakage barrier sheet 3 along its length direction are first welded together, and then the left and right ends of the side sheet 13 are welded together. This technical solution is a replacement for step S8 and is also included in the protection scope of the present invention.

[0058] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An integrally formed non-invasive oxygen mask, comprising a housing body (1) having an opening at its bottom for inserting a patient's head into, the housing body (1) having an air inlet (11) and an air outlet (12), a neckband (2) capable of being inflated or deflated being integrally formed and connected to the inner wall of the housing body (1) near the opening, and a ring-shaped and flexible air leakage-proof barrier sheet (3) being integrally formed and connected to the inner wall of the housing body (1) and located above the neckband (2) or on the upper part of the neckband (2), Its characteristics are: The housing body (1) is composed of a top sheet (14) and a transparent side sheet (13), wherein the side sheet (13) is formed by welding rectangular sheets end to end to form a cylindrical shape, and the top sheet (14) is circular and welded to the top of the side sheet (13) as a whole; the neck (2) is welded to the base circumference of the side sheet (13), and the left and right ends of the side sheet (13) are welded together so that the side sheet (13) forms a hollow housing body (1) for accommodating the patient's head, and the neck (2) is located inside the housing body (1). The scarf (2) comprises a scarf base (22) integrally formed with the inner wall of the housing body (1) and a scarf fabric (26) integrally formed with the scarf base (22), the scarf fabric (26) being provided with a plurality of air bags (21) spaced apart and distributed in an annular manner on the inner peripheral surface of the side wall of the housing body (1), each of the air bags (21) being gas-connected to each other, one side of the air bag (21) being protruded to form an air bag protrusion (20), and the other side being correspondingly concave to form an air bag groove (23), and a connecting portion (24) being provided between two adjacent air bags (21) so that An extrusion space (25) is formed between two adjacent airbag protrusions (20), and the airbag protrusions (20) and the extrusion space (25) are staggered and distributed in a ring shape on the inner peripheral surface of the side wall of the housing body (1). When the neckband (2) is inflated, the size of the airbag (21) and the extrusion space (25) can be adjusted. The neckband (2) is mainly made of the neckband bottom sheet (22) covering the notch of each airbag groove portion (23) and welding them into one body, and then welding the head end and tail end of the neckband bottom sheet (22) into a ring shape; the air leakage barrier sheet (3) includes an anti-leakage barrier sheet (21) and an anti-leakage barrier sheet (21). The air leakage barrier sheet body (31) and a disc-shaped skirt (32) are arranged on the upper end of the air leakage barrier sheet body (31) and expanded outward to form a disc, the skirt (32) can fit with the upper end surface of the neckband (2), the air leakage barrier sheet body (31) can fit with the inner side surface of the neckband (2), the air leakage barrier sheet body (31) extends out of the opening of the accommodating body (1) along its axial direction, one side of the air leakage barrier sheet (3) can cover the extrusion space (25), and the other side of the air leakage barrier sheet (3) can fit with the patient's neck.

2. The one-piece non-invasive oxygen mask according to claim 1, characterized in that: The neckband (2) is integrally or externally connected to an inflation device (4), and the inflation device (4) inflates the air bag (21) through the neckband air nozzle (41).

3. The one-piece non-invasive oxygen mask according to claim 1, characterized in that: The air inlet (11) and the air outlet (12) are both provided with a connecting piece (10), and there are two air inlets (11) and two air outlets (12).

4. The one-piece non-invasive oxygen mask according to claim 1, characterized in that: A single row or multiple rows of the airbags (21) are distributed in an annular shape on the inner peripheral surface of the side wall of the housing body (1), and the multiple rows of the airbags (21) are distributed at intervals in the upper and lower directions. A connecting portion (24) is provided between two adjacent airbag protrusions (20) in the same longitudinal direction, so that an extrusion space (25) is formed between the two adjacent airbag protrusions (20).

5. The one-piece non-invasive oxygen mask according to claim 1, characterized in that: The material of the containing body (1), the air leakage-proof barrier sheet (3) and the neckband (2) are all TPU.

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