Respiratory mask

Abstract

This utility model relates to the field of ventilation therapy equipment and discloses a breathing mask. The breathing mask includes a frame assembly and a headband. The headband is positioned to be fitted onto the frame assembly via the front side of the frame assembly. The left and right ends of the frame assembly are respectively provided with locking structures for corresponding portions of the headband to engage. Each locking structure includes a slot and a slit at the bottom of the slot. The slot can accommodate the corresponding portion of the headband, and the slit allows the corresponding portion to enter and exit the slot. This utility model's breathing mask eliminates the need for a bone beam arm; the headband can be directly fitted onto the front side of the frame assembly, and then the headband portions corresponding to the two locking structures at the left and right ends of the frame assembly are engaged with the locking structures. This simplifies the structure of the breathing mask and reduces costs. Furthermore, compared to a bone beam arm, the headband is relatively soft, allowing for better adaptation to different patient face shapes and ensuring the stability of the breathing mask during wear.

Description

Technical Field

[0001] This utility model relates to the field of ventilation therapy equipment, and more specifically to a breathing mask. Background Technology

[0002] Several methods are known for delivering pressurized gas to patients to aid their breathing. Continuous positive airway pressure (CPAP) involves delivering pressurized air to a patient, typically through a patient interface such as a mouth-nose mask, nasal mask, or nasal pillow mask. CPAP therapy is used to treat snoring and obstructive sleep apnea (OSA), a condition characterized by repeated collapse of the upper airway during inspiration. Positive pressure keeps the upper airway open, preventing collapse. CPAP treatment for OSA has generally proven effective and safe. CPAP is also commonly used for patients with various respiratory conditions, including COPD (chronic obstructive pulmonary disease).

[0003] Non-invasive ventilation therapy involves a patient interface located on the patient's face, typically a mouth-nose mask, nasal mask, or nasal pillow mask. During treatment, an external breathing device, such as a ventilator, is used. The patient interface connects the gas pressure provided by the ventilator to the patient's airway, delivering breathing air into the patient's airway.

[0004] Breathing masks typically include a mouth-nose mask, a nose mask, a soft face contact portion (such as a pad), a rigid or semi-rigid frame, tubular components, and a headband. To maintain stable wear of the mask, the frame typically has bony arms extending outward from both ends, and the headband connects to the bony arms to secure the breathing mask to the user's face.

[0005] Among them, the bone beam arm is generally rigid or semi-rigid and has a basically fixed shape. When facing patients with different face shapes and different degrees of fatness and thinness, there may be cases of facial discomfort or poor sealing. Utility Model Content

[0006] The purpose of this invention is to overcome the problems of facial discomfort or poor sealing that may occur in patients due to the use of bone beam arms in existing breathing masks.

[0007] To achieve the above objectives, the present invention provides a breathing mask, which includes a frame assembly and a headband. The headband is configured to be fitted onto the frame assembly via the front side of the frame assembly, and the left and right ends of the frame assembly are respectively provided with a snap-fit ​​structure for corresponding parts of the headband to be snapped into place. The snap-fit ​​structure includes a slot and a slit formed at the bottom of the slot. The slot is configured to accommodate the corresponding part of the headband, and the slit is configured to allow the corresponding part to enter and exit the slot.

[0008] In some embodiments, the frame assembly includes a frame and an air intake pipe, a through hole is provided in the middle of the frame, one end of the air intake pipe is connected to the through hole, the headband is provided with a clearance part for avoiding the air intake pipe, and the snap-fit ​​structure is provided at the left and right ends of the frame.

[0009] In some embodiments, the gap is located on the front side of the bottom wall of the slot.

[0010] In some embodiments, the width of the gap is less than the thickness of the corresponding portion of the headband, and the thickness of the corresponding portion of the headband is equal to the width of the slot.

[0011] In some embodiments, the headband has an opening that can be fitted over the air intake pipe, and the opening forms the clearance portion.

[0012] In some embodiments, the headband is provided with an arcuate portion that curves toward the upper or lower side of the frame, the arcuate portion forming the clearance portion.

[0013] In some embodiments, a first connecting portion is provided on the upper or lower side of the frame, and a second connecting portion is provided on the arc-shaped portion, wherein the second connecting portion is configured to be detachably connected to the first connecting portion.

[0014] In some embodiments, the first connecting portion includes a root extending outward from the front side of the frame and a head disposed at the end of the root, the outer diameter of the head being larger than the outer diameter of the root; the second connecting portion is a connecting hole, the diameter of the second connecting portion being larger than the outer diameter of the root and smaller than the outer diameter of the head.

[0015] In some embodiments, the headband includes a front side strap, a rear side strap, and a top side strap that are interconnected, and the headband is connected to the frame assembly via the front side strap.

[0016] In some embodiments, the headband is made of an elastic material.

[0017] In some embodiments, the front side belt, the rear side belt, and the top side belt are formed as a single unit.

[0018] In some embodiments, the rear side strap and the top side strap form a single unit, and the front side strap is detachably connected to this single unit and is configured to be length-adjustable.

[0019] In some embodiments, the breathing mask further includes a pad that is detachably attached to the rear side of the frame assembly.

[0020] In some embodiments, the pad includes a body and a sealing portion connected to the rear side of the body for sealing connection with the patient's face, the interior of the body defining a gas chamber, and an air inlet communicating with the gas chamber being provided on the front side of the body, the pad being detachably connected to the frame assembly through the air inlet.

[0021] The breathing mask provided by this utility model does not require a bone beam arm. During installation, the headband can be directly placed on the front side of the frame assembly, and then the headband portions corresponding to the two snap-fit ​​structures at the left and right ends of the frame assembly can be snapped into the snap-fit ​​structures. On the one hand, this simplifies the structure of the breathing mask and reduces costs; on the other hand, compared to the bone beam arm, the headband is relatively soft, which can better fit different patients' face shapes and ensure the stability of the breathing mask when worn.

[0022] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0023] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0024] Figure 1 This is a perspective view of one embodiment of the breathing mask of this utility model;

[0025] Figure 2 yes Figure 1 Exploded view of a breathing mask;

[0026] Figure 3 yes Figure 1 A partial cross-sectional view of a medium-sized breathing mask;

[0027] Figure 4 yes Figure 1 3D view of the mid-frame components;

[0028] Figure 5 yes Figure 1 Another 3D view of the mid-frame components;

[0029] Figure 6 yes Figure 1 A cross-sectional view of the mid-frame component;

[0030] Figure 7 yes Figure 1 A three-dimensional view of the headband;

[0031] Figure 8 yes Figure 1 A three-dimensional view of the inner padding;

[0032] Figure 9 yes Figure 1 Another perspective view of the middle liner;

[0033] Figure 10 This is a perspective view of another embodiment of the breathing mask of this utility model, in which the padding is removed;

[0034] Figure 11 yes Figure 10 A three-dimensional view of the headband;

[0035] Figure 12 yes Figure 10 3D view of the mid-frame components;

[0036] Figure 13 yes Figure 10 Another 3D view of the mid-frame components.

[0037] Explanation of reference numerals in the attached figures

[0038] 10-Frame assembly, 11-Snap-fit ​​structure, 111-Slot, 112-Gap, 12-Frame, 121-Through hole, 122-First connecting part, 1221-Root, 1222-Head, 123-Annular flange, 124-Flange ring, 13-Inlet pipe, 20-Headband, 21-Break-off part, 22-Second connecting part, 23-Front side band, 231-Snap fastener, 24-Rear side band, 25-Top side band, 30-Pad, 31-Body, 32-Sealing part, 33-Gas chamber, 34-Inlet, 35-Annular boss. Detailed Implementation

[0039] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this utility model by way of example, but should not be used to limit the scope of this utility model. This utility model can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0040] These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0041] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] Furthermore, the terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0043] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0044] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0045] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0046] This utility model provides a breathing mask, which includes a frame assembly 10 and a headband 20. The headband 20 is configured to be sleeved on the frame assembly 10 through the front side of the frame assembly 10, and the left and right ends of the frame assembly 10 are respectively provided with snap-fit ​​structures 11 for the corresponding parts of the headband 20 to snap into place.

[0047] It should be noted that the directions "front, back, left, and right" mentioned above are for reference only. Figure 1 The orientation is shown. The headband 20 is fitted onto the frame assembly 10 via the front side, meaning that the rear side of one section of the headband 20 abuts against the front side of the frame assembly 10. After being worn on the patient's head, the headband's backward pulling force provides a force towards the patient's face to the frame assembly 10, thereby stably holding the frame assembly 10 to the patient's face. The corresponding part of the headband 20 refers to the part of the headband that corresponds to the position of the two-end locking structures 11 when the headband is fitted onto the frame assembly.

[0048] The breathing mask provided by this utility model does not require a bone beam arm. During installation, the headband 20 can be directly placed on the front side of the frame assembly 10, and then the headband portions corresponding to the two snap-fit ​​structures 11 at the left and right ends of the frame assembly 10 can be snapped into the snap-fit ​​structures 11. On the one hand, this simplifies the structure of the breathing mask, reduces costs, and facilitates installation; on the other hand, compared to the bone beam arm, the headband 20 is relatively soft, which can better fit different patients' face shapes and ensure the stability of the breathing mask when worn.

[0049] In this invention, the snap-fit ​​structure 11, as part of the frame assembly, achieves the snap-fit ​​of the headband. No structural modifications to the headband are required to accommodate the snap-fit ​​with the frame assembly; that is, the headband does not need to have a structure that mates with the snap-fit ​​structure 11. For example... Figure 4 or Figure 5 As shown, the snap-fit ​​structure 11 may include a snap-fit ​​groove 111 and a slit 112 formed at the bottom of the snap-fit ​​groove 111. The snap-fit ​​groove 111 is configured to accommodate a corresponding part of the headband 20, and the slit 112 is configured to allow the corresponding part to enter and exit the snap-fit ​​groove 111. The left and right sides of the snap-fit ​​groove 111 are open (for the headband to pass through), and the top of the snap-fit ​​groove 111 is closed. After the headband is snapped into the snap-fit ​​groove 111 through the slit 112 at the bottom of the snap-fit ​​groove, the top wall of the snap-fit ​​groove 111 can limit its movement.

[0050] Furthermore, such as Figure 4 or Figure 5 As shown, the slit 112 is preferably located on the front side of the bottom wall of the slot 111. After the breathing mask is worn on the patient's head, the part of the headband 20 connected to the frame assembly will be subjected to a backward pull, causing this part of the headband to abut against the front side of the frame assembly. Setting the slit 112 on the front side of the bottom wall of the slot can further prevent the headband from coming off from the slit 112.

[0051] In some embodiments, the width of the gap 112 (i.e., the front-to-back dimension) is set to be equal to the thickness of the corresponding portion of the headband 20 and less than the width of the slot 111. In other embodiments, the width of the gap 112 (i.e., the front-to-back dimension) is set to be less than the thickness of the corresponding portion of the headband 20, and the width of the slot 111 (i.e., the front-to-back dimension) is set to be equal to or slightly greater than the thickness of the corresponding portion of the headband 20.

[0052] In this utility model, see Figures 4-6 or Figures 12-13 The frame assembly 10 may include a frame 12 and an air intake pipe 13. A through hole 121 is provided in the middle of the frame 12. One end of the air intake pipe 13 is connected to the through hole 121. A clearance part 21 for avoiding the air intake pipe 13 is provided on the headband 20. A snap-fit ​​structure 11 is provided at the left and right ends of the frame 12.

[0053] The frame 12 can be a plate-like component. To further improve the stability of the breathing mask after wearing, the length of the frame 12 in the left-right direction is greater than its length in the up-down direction, so as to increase the contact area with the headband. The length of the frame 12 in the up-down direction can be equal to or close to the corresponding part of the headband. The frame 12 and the air inlet tube 13 can be a single piece or separate pieces (both are for secondary installation, and further, can be detachable).

[0054] The avoidance section 21 can be implemented in various ways. In some implementations, such as... Figures 1-2 as well as Figure 7 As shown, the headband 20 has an opening that can be fitted over the air intake pipe 13, forming a clearance portion 21. This opening not only allows passage over the air intake pipe 13 but also improves the strength and reliability of the connection between the headband and the frame assembly. In another embodiment, see... Figure 10 and Figure 11 The headband 20 has an arc-shaped portion that curves toward the upper or lower side of the frame 12, forming a clearance portion 21. It is understood that the arc-shaped profile of the arc-shaped portion matches the profile of the air intake pipe 13.

[0055] In the embodiment where the avoidance part 21 is an arc-shaped part, in order to further improve the firmness and reliability of the connection between the headband and the frame assembly, a first connecting part 122 can be provided on the upper or lower side of the frame 12, and a second connecting part 22 can be provided on the arc-shaped part. The second connecting part 22 is configured to be detachably connected to the first connecting part 122.

[0056] The first connecting portion 122 and the second connecting portion 22 can be any detachable connecting structure. In some embodiments, see [reference needed]. Figures 10-13The first connecting part 122 includes a root 1221 extending outward from the front side of the frame 12 and a head 1222 disposed at the end of the root 1221. The outer diameter of the head 1222 is larger than the outer diameter of the root 1221. The second connecting part 22 is a connecting hole. The diameter of the hole of the second connecting part 22 is larger than the outer diameter of the root 1221 and smaller than the outer diameter of the head 1222.

[0057] Furthermore, such as Figure 13 As shown, the root 1221 can be a strip extending perpendicular to the front side of the frame, and the head 1222 can be a strip extending perpendicular to the root 1221, i.e., the first connecting portion 122 is formed in a T-shape. Since the headband is flexible, the second connecting portion 22 with a smaller aperture can be fitted over the head 1222 onto the root 1221, where the head 1222 can provide a limiting effect. Furthermore, because the second connecting portion 22 of the headband experiences a backward pulling force after being worn on the patient's head, the second connecting portion 22 is less likely to detach from the first connecting portion 122.

[0058] In this invention, the headband 20 may include a front side strap 23, a rear side strap 24 and a top side strap 25 that are connected to each other, and the headband 20 is connected to the frame assembly 10 through the front side strap 23.

[0059] In some implementations, such as Figure 7 As shown, the front strap 23, rear strap 24, and top strap 25 are formed as a single unit. In this embodiment, at least the portion of the headband that mates with the frame assembly can be made flexible. Of course, to accommodate different patients' heads, at least the front strap 23 of the headband can be made of an elastic material. To further improve fit and comfort, the entire headband 20 can be made of an elastic material.

[0060] In other implementations, such as Figure 11 As shown, the rear strap 24 and the top strap 25 form a single piece, and the front strap 23 is detachably connected to this single piece and is configured to be adjustable in length. Specifically, each end of the front strap 23 may be provided with a buckle 231, and the single piece formed by the rear strap 24 and the top strap 25 is provided with a connecting hole for the buckle 231 to connect. The length of the front strap 23 can be adjusted by adjusting the length of the buckle 231.

[0061] In this utility model, see Figure 1 The breathing mask also includes a pad 30, which is detachably attached to the rear side of the frame assembly 10. The pad 30 may be made of a relatively soft, elastic material.

[0062] It should be noted that when the breathing mask is of different types, such as a mouth-nose mask or a nose mask, the pad 30 will also have a different structure accordingly.

[0063] Specifically, such as Figure 3 , Figure 8 and Figure 9 In the illustrated embodiment, the pad 30 may include a main body 31 and a sealing portion 32 connected to the rear side of the main body 31 for sealing connection with the patient's face. The main body 31 defines a gas chamber 33 inside, and an air inlet 34 communicating with the gas chamber 33 is provided on the front side of the main body 31. The pad 30 is detachably connected to the frame assembly 10 through the air inlet 34. The sealing portion 32 may be a nasal plug that seals against the nose. In use, gas enters the gas chamber 33 from the air inlet tube 13 through the air inlet 34, and is then supplied to the patient through the sealing portion 32.

[0064] The padding 30 can be connected to the frame 12 via any suitable detachable connection structure. For example... Figure 3 In the embodiment shown, an annular flange 123 protruding toward the rear and extending around the through hole 121 may be formed on the rear side of the frame 12, and a flange ring 124 protruding radially outward may be provided at the end of the annular flange 123; the air inlet 34 of the gasket 30 may have an annular boss 35 protruding radially inward, and the annular boss 35 may pass over the flange ring 124 and fit on the annular flange 123.

[0065] Another aspect of this invention provides a ventilation therapy device, including the aforementioned breathing mask.

[0066] The aforementioned ventilation therapy device may also include a main unit and a ventilation tubing. The ventilation tubing can connect the main unit and a breathing mask (specifically, it can be connected to the air inlet tube 13 of the breathing mask) to deliver the breathing gas generated by the main unit to the breathing mask for the patient to inhale.

[0067] The ventilation therapy equipment may be a ventilator or an oxygen therapy device, etc.

[0068] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0069] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the different embodiments can be combined in any way.

Claims

1. A breathing mask, characterized in that, The breathing mask includes a frame assembly (10) and a headband (20). The headband (20) is configured to be fitted onto the frame assembly (10) through the front side of the frame assembly (10). The left and right ends of the frame assembly (10) are respectively provided with a snap-fit ​​structure (11) for the corresponding part of the headband (20) to snap into. The snap-fit ​​structure (11) includes a slot (111) and a slit (112) formed at the bottom of the slot (111). The slot (111) is configured to accommodate the corresponding part of the headband (20), and the slit (112) is configured to allow the corresponding part to enter and exit the slot (111).

2. The breathing mask according to claim 1, characterized in that, The gap (112) is located on the front side of the bottom wall of the slot (111), and / or The width of the gap (112) is less than the thickness of the corresponding part of the headband (20), and the thickness of the corresponding part of the headband (20) is equal to the width of the slot (111).

3. The breathing mask according to claim 1, characterized in that, The frame assembly (10) includes a frame (12) and an air intake pipe (13). A through hole (121) is provided in the middle of the frame (12). One end of the air intake pipe (13) is connected to the through hole (121). A clearance part (21) for avoiding the air intake pipe (13) is provided on the headband (20). The snap-fit ​​structure (11) is provided at the left and right ends of the frame (12).

4. The breathing mask according to claim 3, characterized in that, The headband (20) has an opening that can be fitted over the air intake pipe (13), and this opening forms the clearance part (21); or The headband (20) is provided with an arc-shaped portion that curves toward the upper or lower side of the frame (12), and the arc-shaped portion forms the avoidance portion (21).

5. The breathing mask according to claim 4, characterized in that, The frame (12) is provided with a first connecting part (122) on its upper or lower side, and a second connecting part (22) is provided on the arc-shaped part. The second connecting part (22) is configured to be detachably connected to the first connecting part (122).

6. The breathing mask according to claim 5, characterized in that, The first connecting portion (122) includes a root portion (1221) extending outward from the front side of the frame (12) and a head portion (1222) disposed at the end of the root portion (1221), wherein the outer diameter of the head portion (1222) is larger than the outer diameter of the root portion (1221); the second connecting portion (22) is a connecting hole, wherein the diameter of the hole of the second connecting portion (22) is larger than the outer diameter of the root portion (1221) and smaller than the outer diameter of the head portion (1222).

7. The breathing mask according to claim 1, characterized in that, The headband (20) includes a front side strap (23), a rear side strap (24), and a top side strap (25) that are interconnected, and the headband (20) is connected to the frame assembly (10) via the front side strap (23); and / or The headband (20) is made of elastic material.

8. The breathing mask according to claim 7, characterized in that, The front side strip (23), the rear side strip (24), and the top side strip (25) form an integral piece, or The rear side strip (24) and the top side strip (25) form an integral piece, and the front side strip (23) is detachably connected to the integral piece and is configured to be adjustable in length.

9. The breathing mask according to any one of claims 1-8, characterized in that, The breathing mask also includes a liner (30) which is detachably attached to the rear side of the frame assembly (10).

10. The breathing mask according to claim 9, characterized in that, The pad (30) includes a main body (31) and a sealing part (32) connected to the rear side of the main body (31) for sealing connection with the patient's face. The interior of the main body (31) defines a gas chamber (33). An air inlet (34) communicating with the gas chamber (33) is provided on the front side of the main body (31). The pad (30) is detachably connected to the frame assembly (10) through the air inlet (34).

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