Breathing mask with sponge cloth

Abstract

The invention relates to the technical field of breathing masks, and particularly discloses a breathing mask which can deform according to facial features of different patients and is sealed and comfortable, and the breathing mask comprises a supporting chamber, a buffering part and a comfortable layer; the supporting chamber is provided with smoothly connected side walls and two annular openings with different sizes, the annular opening far away from the face of the patient is a first opening configured to receive pressurized gas, and the axisymmetric opening close to the face of the patient is a second opening configured to be connected with the buffering part; the buffering part comprises an elastomer and a foam body, the smooth side of the elastomer at least partially conforms to the face curve of the patient, the fixed side is connected with the supporting chamber, the sponge body comprises a curved side and a connecting side connected with the elastomer, the first side of the comfortable layer at least partially makes contact with the face of the patient, and the second side is connected with the sponge body; and the buffering part and the comfortable layer can deform to seal the face of the patient together.

Description

Technical Field

[0001] The present invention relates to one or more of the treatment and improvement of respiratory-related diseases, and provides a respiratory mask with a buffer layer that can be deformed according to different facial features of patients and a comfort layer that directly contacts the patient's face, providing a comfortable wearing experience while ensuring the sealing of the oral and nasal airways. Background Art

[0002] Breathing is one of the key processes to maintain vital signs. Its main purpose is to achieve gas exchange through the action of the upper respiratory tract and the lower respiratory tract, bringing oxygen from the external environment into the body and expelling carbon dioxide produced by metabolism. However, the collapse of the airways of some people makes it impossible for them to carry out normal gas exchange, the lungs cannot inhale enough oxygen and exhale carbon dioxide, and respiratory failure leads to a series of diseases and disorders. Obstructive sleep apnea (OSA) is a form of sleep breathing disorder characterized by upper airway obstruction during sleep. One of the ways to treat OSA is CPAP therapy. Patients need to wear corresponding equipment and connect to a machine that provides positive pressure gas to provide patients with sufficient pressurized gas for breathing. There are many challenges in the design of the respiratory mask that contacts the patient's face in the device: the face has a complex three-dimensional shape, the head and nose contain bones and soft tissues, and the structure, size, shape, and sensitivity vary from person to person. During sleep, the patient moves and the respiratory mask moves accordingly, and the sealing area of ​​the respiratory mask may change as a result; therefore, the design of the respiratory mask needs to consider sealing, wearing comfort, patient adaptability and flexibility of deformation, so that a respiratory mask can meet the needs of different patients to the greatest extent.

[0003] However, most current respiratory masks usually use soft materials such as silicone or rubber to seal with the patient's face. Such flexible materials can well adapt to the deformation of the patient's face to achieve the purpose of sealing. However, treatment usually occurs at night, and patients need to wear the respiratory mask for 8-16 hours or more. During this period, due to physiological reasons, the oil secreted by the sebaceous glands or the sweat secreted due to poor air circulation comes into contact with the non-breathable soft rubber material, which may cause the patient's facial pores to become clogged, thereby increasing the risk of acne, blackheads or pressure sores. The oil-water mixture may make the soft rubber material more likely to shift relative to the face, causing it to fall off or cause irritation or red marks on the skin due to incorrect positioning.

[0004] In view of the shortcomings of pure silicone breathing masks, the market has introduced a combination of breathing masks and breathing mask covers. Most breathing mask covers are made of cloth, which is detachably connected to the breathing mask and covers the surface of the silicone layer. The cloth can easily absorb sweat and grease, providing a dry and comfortable environment for the patient's face; but since there is no fixed part, the breathing mask cover and the silicone layer can slide relative to each other, and the cloth is prone to stacking, which increases the difficulty of patients wearing breathing masks and increases the incidence of displacement between the breathing mask and the patient's face during sleep. In addition, full-face breathing masks with sponges have also been launched on the market. The sponge is attached to the silicone layer by adhesive and provides a side that contacts the patient's face. Compared with the first two respiratory masks, the sponge's porosity, connectivity and softness ensure that the sponge respiratory mask can absorb oil and sweat while providing a better pressure dispersion effect than the first two. However, since the sponge is usually directly exposed to the outside world, frequent friction or pressure may cause the sponge to wear or break, producing fine debris, which can easily cause skin allergies in patients or be inhaled into the patient's airway, shortening the use cycle of the respiratory mask and causing unnecessary waste.

[0005] Therefore, it is necessary to design a respiratory mask that is both comfortable and durable. The contact part should be made of breathable, soft, skin-friendly, non-damageable and adsorbable materials, and the respiratory mask should have some adjustable functions so that the respiratory mask can be deformed after fitting the patient's face. While ensuring the sealing of the patient's oral and nasal airways, it provides the patient with a comfortable wearing experience and improves the patient's compliance with the product. Summary of the invention

[0006] Based on this, it is necessary to provide a comfortable breathing mask 1 that can deform according to different facial features of patients and seal the oral and nasal airways of patients to address the above-mentioned deficiencies.

[0007] A breathing mask 1 with a sponge cloth is used to seal and deliver an airflow pressurized relative to the ambient air pressure to the entrance of the nasal airway and oral airway of a patient, comprising:

[0008] The support chamber 2 is at least partially rigid, and includes a curved side wall 21, wherein the side wall 21 is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening 22, and the axisymmetric opening close to the patient's face is a second opening 23, wherein the first opening 22 is configured to receive pressurized gas, and the second opening 23 is configured to be connected to the buffer portion 3;

[0009] The buffer part 3 includes an elastic body 31 and a sponge body 32, wherein the elastic body 31 includes a smooth side 311 at least partially conforming to the curve of the patient's face, and a fixed side 312 connected to the support chamber 2, the smooth side 311 and the fixed side 312 are connected by an arc, and the sponge body 32 includes a curved side 321 facing the patient's face and a connecting side 322 opposite thereto, and the connecting side 322 is configured to be connected to the smooth side 311 of the elastic body 31; and

[0010] The comfort layer 4 comprises a first side 41 at least partially in contact with the patient's face, and a second side 42 opposite thereto, wherein the second side 42 is configured to be connected to the sponge 32, the comfort layer 4 contacts the nose bridge area 5, and the comfort layer 4 and the buffer part 3 together achieve sealing of the patient's face, and the comfort layer 4 is made of at least one absorbent material;

[0011] The comfort layer 4 is configured such that the inner edge can accommodate the oral and nasal airways of the patient, wherein the inner edge is smaller than or equal to the inner edge of the elastic body 31, and the comfort layer 4 is configured such that the comfort layer 4 alone contacts the patient's face;

[0012] The buffer part 3 and the comfort layer 4 have deformable capabilities, wherein when the same pressure is applied to different points of the buffer part 3 and the comfort layer 4 in a direction perpendicular to the coronal plane, the buffer part 3 and the comfort layer 4 deform to different degrees at different locations.

[0013] In one embodiment, the buffer portion 3 and the comfort layer 4 correspond to the user's nose bridge area 5, under-eye area 6 and chin area 7, and the buffer portion 3 is deformed in each area and fits the user's face, and the comfort layer 4 conforms to the sponge body 32 to produce corresponding deformation.

[0014] In one embodiment, the inner edge of the sponge body 32 is greater than or equal to the inner edge of the comfort layer.

[0015] In one embodiment, the elastic body 31 has different elastic moduli in different regions.

[0016] The present invention also discloses a breathing mask 1 with a sponge cloth, which is used to seal and deliver airflow pressurized relative to ambient air pressure to the entrance of the nasal airway and oral airway of a patient, comprising:

[0017] The support chamber 2 is at least partially rigid, and includes a curved side wall 21, wherein the side wall 21 is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening 22, and the axisymmetric opening close to the patient's face is a second opening 23, wherein the first opening 22 is configured to receive pressurized gas, and the second opening 23 is configured to be connected to the buffer portion 3;

[0018] The buffer part 3 includes an elastic body 31 and a sponge body 32, wherein the elastic body 31 includes a smooth side 311 at least partially conforming to the curve of the patient's face, and a fixed side 312 connected to the support chamber 2, the smooth side 311 and the fixed side 312 are connected by an arc, and the sponge body 32 includes a curved side 321 facing the patient's face and a connecting side 322 opposite thereto, and the connecting side 322 is configured to be connected to the smooth side 311 of the elastic body 31; and

[0019] The comfort layer 4 comprises a first side 41 at least partially in contact with the patient's face, and a second side 42 opposite thereto, wherein the second side 42 is configured to be non-detachably connected to the sponge body 32, and the comfort layer 4 and the buffer part 3 together achieve sealing of the patient's face, and the comfort layer 4 is made of at least one absorbent material;

[0020] The comfort layer 4 is configured such that the inner edge can accommodate the oral and nasal airway of the patient, wherein the comfort layer 4 at least partially covers the sponge 32, the inner edge of the portion of the comfort layer 4 is larger than the edge of the curved side 321 of the sponge 32, and the comfort layer 4 is configured to seal the patient's airway together with the sponge 32;

[0021] The cushioning portion 3 and the comfort layer 4 are deformable, and the comfort layer 4 is configured to conform to the sponge and produce deformation during use.

[0022] In one embodiment, the inner edge of the sponge body 32 is smaller than or equal to the inner edge of the elastic body 31 .

[0023] In one embodiment, the comfort layer 4 and the sponge 32 may be continuous or discontinuous.

[0024] In one embodiment, the inner edge shape of the sponge body 32 is roughly triangular, teardrop-shaped, V-shaped, or U-shaped.

[0025] The present invention also discloses a breathing mask 1 with a sponge cloth, which is used to seal and deliver airflow pressurized relative to ambient air pressure to the entrance of the nasal airway and oral airway of a patient, comprising:

[0026] The support chamber 2 is at least partially rigid, and includes a curved side wall 21, wherein the side wall 21 is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening 22, and the axisymmetric opening close to the patient's face is a second opening 23, wherein the first opening 22 is configured to receive pressurized gas, and the second opening 23 is configured to be connected to the buffer portion 3;

[0027] The buffer part 3 is a sponge 32, and the sponge 32 includes a curved side 321 facing the patient's face and a connecting side 322 opposite thereto, and the connecting side 322 is configured to be connected to the second opening 23 of the supporting chamber 2; and

[0028] The comfort layer 4 comprises a first side 41 at least partially in contact with the patient's face, and a second side 42 opposite thereto, wherein the second side 42 is configured to be connected to the sponge 32, the comfort layer 4 contacts the nose bridge area 5, and the comfort layer 4 and the buffer part 3 together achieve sealing of the patient's face, and the comfort layer 4 is made of at least one absorbent material;

[0029] The sponge 32 has one or more of the following characteristics:

[0030] a. Thickness at least 8mm;

[0031] b. The width is at least 8mm;

[0032] c. Density range is 10-200kg / m 3 .

[0033] In one embodiment, the support chamber 2 has a platform 24 for connecting the sponge 32 , and the sponge 32 is connected to the platform 24 .

[0034] In one embodiment, the sponge body 32 and the platform 24 of the supporting chamber 2 can be connected in an inseparable manner by gluing, hot melting or welding.

[0035] In one embodiment, the sponge 32 has different elastic moduli in different areas.

[0036] The present invention also discloses a breathing mask 1 with a sponge cloth, which is used to seal and deliver airflow pressurized relative to ambient air pressure to the entrance of the nasal airway and oral airway of a patient, comprising:

[0037] The support chamber 2 is at least partially rigid, and includes a curved side wall 21, wherein the side wall 21 is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening 22, and the axisymmetric opening close to the patient's face is a second opening 23, wherein the first opening 22 is configured to receive pressurized gas, and the second opening 23 is configured to be connected to the buffer portion 3;

[0038] The buffer part 3 includes an elastic body 31 and a sponge body 32, wherein the elastic body 31 includes a smooth side 311 at least partially conforming to the curve of the patient's face, and a fixed side 312 connected to the support chamber 2, the smooth side 311 and the fixed side 312 are connected by an arc, and the sponge body 32 includes a curved side 321 facing the patient's face and a connecting side 322 opposite thereto, and the connecting side 322 is configured to be connected to the smooth side 311 of the elastic body 31; and

[0039] The comfort layer 4 comprises a first side 41 at least partially in contact with the patient's face, and a second side 42 opposite thereto, wherein the second side 42 is configured to be connected to the sponge 32, and the comfort layer 4 and the buffer part 3 together achieve sealing of the patient's face, and the comfort layer 4 is made of at least one breathable material;

[0040] The comfort layer 4 is configured such that the inner edge can accommodate the oral and nasal airway of the patient, wherein the comfort layer 4 at least partially covers the sponge 32, the comfort layer 4 at least partially covers the sponge 32, the inner edge of the comfort layer 4 is larger than the edge of the smooth side 311 of the elastic body 31, and the comfort layer 4 is configured to seal the patient's airway together with the sponge 32;

[0041] The cushioning part 3 and the comfort layer 4 have deformable capabilities, and the comfort layer 4 is configured to conform to the sponge to produce deformation when in use;

[0042] The comfort layer 4 has one or more of the following characteristics:

[0043] a. Thickness is at least 0.2mm;

[0044] b. The Ra value of the surface of the first side 41 is not less than 0.2;

[0045] c. The ratio of the surface area of ​​the first side 41 of the comfort layer 4 to the surface area of ​​the sponge curved side 321 is 0.2-5.

[0046] In one embodiment, the inner edge of the sponge body 32 is smaller than or equal to the inner edge of the elastic body 31 .

[0047] In one embodiment, the material of the comfort layer 4 can be natural fiber or synthetic fiber, and can be a composite of one layer or multiple layers.

[0048] In one embodiment, the thickness of the comfort layer 4 does not exceed 3.5 mm.

[0049] The present invention also discloses a breathing mask 1 with a sponge cloth, which is used to seal and deliver airflow pressurized relative to ambient air pressure to the entrance of the nasal airway and oral airway of a patient, comprising:

[0050] The support chamber 2 is at least partially rigid, and includes a curved side wall 21, wherein the side wall 21 is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening 22, and the axisymmetric opening close to the patient's face is a second opening 23, wherein the first opening 22 is configured to receive pressurized gas, and the second opening 23 is configured to be connected to the buffer portion 3;

[0051] The buffer part 3 includes an elastic body 31 and a sponge body 32, wherein the elastic body 31 includes a smooth side 311 at least partially conforming to the curve of the patient's face, and a fixed side 312 connected to the support chamber 2, the smooth side 311 and the fixed side 312 are connected by an arc, and the sponge body 32 includes a curved side 321 facing the patient's face and a connecting side 322 opposite thereto, and the connecting side 322 is configured to be connected to the smooth side 311 of the elastic body 31; and

[0052] The comfort layer 4 comprises a first side 41 at least partially in contact with the patient's face, and a second side 42 opposite thereto, wherein the second side 42 is configured to be connected to the sponge 32, wherein the comfort layer 4 contacts the nose bridge area 5, and the comfort layer 4 and the buffer part 3 jointly achieve sealing of the patient's face, and the comfort layer 4 is made of at least one breathable material;

[0053] The comfort layer 4 is configured such that the inner edge can accommodate the oral and nasal airway of the patient, wherein the inner edge is smaller than or equal to the inner edge of the elastic body 31, and the comfort layer 4 is configured such that the comfort layer 4 alone contacts the patient's face;

[0054] The buffer part 3 and the comfort layer 4 have deformable capabilities, wherein when the same pressure is applied to different points of the buffer part 3 and the comfort layer 4 in a direction perpendicular to the coronal plane, the buffer part 3 and the comfort layer 4 deform to different degrees at different locations, and the comfort layer 4 is configured to deform in accordance with the sponge during use.

[0055] In one embodiment, the elastic body 31 and the sponge body 32 are connected by molding, foaming, and adhesive, and the sponge body 32 and the comfort layer 4 are connected by adhesive and foaming.

[0056] In one embodiment, the cross-sectional shape of the sponge body 32 is a triangle, a quadrilateral, a pentagon or a hexagon, and the inner edge of the sponge body 32 can be smoothly connected to the elastic body 31 .

[0057] The breathing mask 1 with sponge cloth of the present invention has at least the following beneficial effects:

[0058] 1) It is more comfortable to wear and more stable to use. Compared with the existing pure silicone breathing mask, adding a layer of material with comfort and breathability such as sponge and comfort layer 4 can improve the overall use experience of the breathing mask 1. Cloth and sponge have pores and surface tension. The pores can accommodate gas and liquid molecules. When sweat and oil adhere to the surface of the cloth or sponge, their surface tension will absorb the gas or liquid molecules. The pore structure inside the sponge is huge and intricate. When the comfort layer 4 is overloaded by adsorption, it can continue to flow to the sponge body 32 through the connection, ensuring that the patient's face is dry and comfortable all night, and avoiding the relative displacement of the breathing mask 1 from the face due to the sweat or oil secreted by the patient.

[0059] 2) Disperse pressure and reduce indentation. The sponge 32 is elastic, and the pore structure of the sponge allows the breathing mask 1 to expand when subjected to external pressure, dispersing the pressure to a wider area to reduce the sense of oppression at specific points and better disperse the pressure. Air can flow through the pores, making the sponge 32 fluffy and not pressing the face, and avoiding the skin allergy problem caused by airtightness. The soft material of the sponge allows the breathing mask 1 to better adapt to the three-dimensional height of the face, produce corresponding deformation without causing pressure, reduce the indentation of the breathing mask 1, and provide a more comfortable use experience.

[0060] 3) The sponge has good wrinkle resistance and shape retention performance. The wrinkle resistance performance means that the sponge can mostly rebound and restore its original shape under the action of external force, and it is not easy to wrinkle like paper, cloth, etc.; the shape retention performance means that the sponge can still maintain its original shape without permanent deformation after a long time or after being subjected to continuous external force; the sponge is softer than the elastomer 31. Attaching the sponge 32 to the elastomer 31 can better provide a deformable buffer layer for the patient. The pore structure of the sponge can adapt to form the most suitable seal with the patient's face and avoid the leakage effect caused by partial displacement; when the patient takes off the breathing mask 1, the shape retention of the sponge comes into play, restoring the breathing mask 1 to its original state, avoiding the situation where the silicone becomes hardened and cannot be deformed after long-term use, thereby extending the service life of the breathing mask 1.

[0061] 4) Comfort layer 4 enhances the tear strength of the sponge. The sponge becomes soft and breathable due to its tiny and huge pore structure, but its pore connection structure or connection wall is too small, which can easily cause breakage and fall off under long-term wear and deformation, resulting in sponge debris, which can be easily inhaled by patients during use. The comfort layer 4 can add a protective film to the surface of the sponge to ensure that its deformation function remains unchanged while providing the patient with an equally comfortable and safe contact surface. The comfort layer 4 has good wear resistance and toughness, and the debris and tearing caused by wear on the sponge surface are greatly reduced.

[0062] 5) Better sealing. Compared with the existing respiratory mask 1, the respiratory mask 1 with the sponge 32 and the comfort layer 4 is more user-friendly. For a small number of user groups, such as those with beards or those with facial depressions after trauma, the sponge and the comfort layer 4 are softer and have stronger deformation ability, and can fill in the grooves, such as the small protrusions formed by the beard and the face. For the one-piece elastic part, when it fits with the face, gaps will be left around the beard, reducing the sealing performance of the patient interface pad; while the soft comfort layer 4 and the sponge 32 can better conform to the facial contour, and under the pressure of the face, the gaps around the beard can be filled to achieve better sealing; and the pore structure of the two also ensures that patients with facial trauma have sufficient air permeability to avoid symptoms such as inflammation.

[0063] 6) Components can be modularly matched to reduce carbon emissions in production. Using the same mask as the basis, modular component production means a more refined and efficient production process. The main components can be carefully designed to increase the service life of the main components, and components with additional functions can be combined with the main components according to patient needs, which helps to reduce energy consumption and waste in the production process. By reducing energy consumption and waste and recycling some components, carbon emissions in production can be reduced and the environment can be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is a schematic structural diagram of a breathing mask in Embodiment 1 of the present invention;

[0065] Figure 2 This is a schematic diagram of the structure explosion of the breathing mask in the first embodiment of the present invention;

[0066] Figure 3 This is a diagram showing the area division of the breathing mask in the first embodiment of the present invention;

[0067] Figure 4 for Figure 3 Cross-section view along the AA direction;

[0068] Figure 5 for Figure 4 Cross-sectional views of the comfort layer in the AA direction with different numbers of layers;

[0069] Figure 6 It is a schematic structural diagram of a breathing mask in Embodiment 2 of the present invention;

[0070] Figure 7 It is a front view of the platform 24 of the support chamber 2 of the breathing mask in the second embodiment of the present invention and a corresponding cross-sectional view of the platform 24 of the support chamber 2 of the breathing mask in the BB direction;

[0071] Figure 8 for Figure 7 Cross-sectional views of the comfort layer in the mid-BB direction with different numbers of layers;

[0072] Fig. 9 Schematic diagram of the inverted V-shaped sponge body 32 of the breathing mask in the third embodiment of the present invention;

[0073] Fig.10 Schematic diagram of the U-shaped sponge body 32 of the breathing mask in the third embodiment of the present invention;

[0074] Fig.11 This is a schematic diagram of the regional sponge body 32 of the breathing mask in the third embodiment of the present invention;

[0075] Fig.12 is a three-dimensional schematic diagram of a breathing mask in Embodiment 1 of the present invention;

[0076] Fig.13 is a three-dimensional schematic diagram of a breathing mask in a fourth embodiment of the present invention;

[0077] Fig.14 It is a front view of the breathing mask in the fourth embodiment of the present invention;

[0078] Fig.15 is a cross-sectional view of the sponge body contour shape of the breathing mask in the first embodiment of the present invention;

[0079] Fig.16 Schematic diagram of the coronal plane of the breathing mask in the first embodiment of the present invention. DETAILED DESCRIPTION

[0080] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0081] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the invention belongs. The terms used in the specification of the invention herein are only for the purpose of describing specific embodiments and are not intended to limit the invention.

[0082] The present invention combines a comfort layer 4, a sponge 32 and an ordinary breathing mask to produce a comfortable breathing mask 1 with cushioning, and the breathing mask 1 is designed to consist of three parts: a support chamber 2, a cushioning part 3 and a comfort layer 4. The breathing mask 1 has openings on both sides, one side is configured to receive pressurized gas, and the other side is configured to accommodate and seal the oral and nasal airways of the patient. The upper end of the breathing mask 1 contacts the patient's nose bridge area 5, and the lower end contacts the patient's chin, so as to seal the patient's airway at least between the nose bridge and the lower part of the lips. The areas where the breathing mask 1 contacts the patient's face can be divided into the nose area, the under-eye area and the chin area. Considering that the human face has three-dimensional characteristics, different areas of the cushioning part 3 have different elastic moduli, and in the direction perpendicular to the coronal plane (such as Fig.16 As shown in the figure, when the same pressure is applied to different points of the breathing mask 1, different parts of the breathing mask 1 are subjected to different forces and deformations. The comfort layer 4 is configured to conform to the deformation of the sponge during use, so that the user's face is subjected to uniform force, thereby improving the user's experience of wearing the breathing mask 1.

[0083] The following specific examples illustrate several structures of the respiratory mask 1 with the cushioning part 3 and the comfort layer 4 of the present invention.

[0084] Example 1

[0085] The breathing mask 1 with sponge cloth of the present invention is configured to longitudinally pass through the user's nose bridge area 5, the area under the eyes 6 to the chin area 7, and surround the user's oral airway and nasal airway to form a sealed area. In other words, the present invention is designed to cover the user's nose and mouth at the same time. By forming a sealed relationship with the user's face, the breathing mask 1 delivers air pressure pressurized relative to the ambient air pressure to the user's nasal airway and oral airway, thereby achieving the user's treatment needs.

[0086] Please combine the specific Figures 1 to 4 ,as well as Figure 6, the breathing mask 1 of this embodiment includes a support chamber 2, a buffer part 3 and a comfort layer 4. Among them, the support chamber 2 includes at least one curved side wall 21 of curvature, the side wall 21 is smoothly connected around and forms two annular openings of different sizes, the annular opening away from the patient's face is the first opening 22, and the axially symmetrical opening close to the patient's face is the second opening 23, the first opening 22 is configured to receive pressurized gas, and the second opening 23 is configured to be connected to the buffer part 3. When the buffer part 3 includes a complete elastomer 31 and a sponge 32, the second opening 23 provides at least two different contact surfaces for connection with the elastomer 31, ensuring that the elastomer 31 is firmly connected to the breathing mask 1, and it is not easy to have cracks or insufficient connection. The support chamber 2 is at least partially rigid, and the rigid part material can be made of high-density polyethylene, polypropylene, polycarbonate, etc. by injection molding. The support chamber 2 can also have a small part of a neutral part or a noise reduction material with a hardness less than that of the rigid part material. The neutral part material can be polyester, acrylic, etc., and the noise reduction material can be nylon, cotton, natural fabric, etc. The wall thickness of the side wall 21 is about 1-5mm to ensure that the support chamber 2 has sufficient hardness to connect the buffer part 3 and receive the pressurized gas. The side wall 21 is usually continuous and uniform, and may also be provided with a small number of through openings or holes equipped with a noise reduction net (for discharging the waste gas exhaled by the patient), or may have a positioning or fixing device with a protrusion or groove (for positioning or fixing other components), or may be a component with other functions. The size and shape of the first opening 22 are usually determined by the elbow, conduit or supporting frame for transmitting pressurized gas connected thereto. Generally speaking, it is a circular opening with a diameter of about 10-45mm. The wall thickness of the part extending from the first opening is the same as that of the side wall 21 or may be slightly thinner than the side wall 21. The shape and size of the second opening 23 are determined by the buffer part 3 connected thereto. Generally speaking, it is symmetrical, and the second opening 23 is larger than the first opening 22.

[0087] The buffer part 3 includes an elastic body 31 and a sponge 32. The elastic body 31 includes a smooth side 311 that at least partially conforms to the curve of the patient's face, and a fixed side 312 connected to the support chamber 2, and the smooth side 311 and the fixed side 312 are connected by an arc; the elastic body 31 is used to provide an attachment point for the sponge 32, which can be an attachment point on the surface or an attachment point on the cut surface, and the two together form a complete buffer part 3. At least part of the surface of the smooth side 311 of the elastic body 31 is not in the same plane, and the elastic body 31 has different elastic moduli in different areas (for example, the bridge of the nose area 5 has a thinner wall thickness than other places, and the elastic modulus is positively correlated with the wall thickness. At this time, the elastic body 31 has a greater deformation ability in the bridge of the nose area 5, so that the respiratory mask 1 can better fit The elastic body 31 has a plurality of ribs, which are preferably made of rubber, silicone, elastic plastic, etc., and can adapt to the changes in facial morphology. The material can be rubber, silicone, elastic plastic, etc., and can be connected to the support chamber 2 by molding or integral molding; the surface roughness of the smooth side 311 and the fixed side 312 can be the same or different, for example, the surface of the smooth side 311 can be polished to eliminate the tiny bumps on the surface to improve the smoothness; the inner side of the arc connection can have reinforcing ribs, or the wall thickness of the elastic part can be single-layer or multi-layer to prevent the breathing mask 1 from bursting due to being too thin, or to prevent it from being blown away; the under-eye area corresponding to the elastic body 31 has protruding wings for fitting the nasal side walls (the side walls on both sides of the bridge of the nose). The sponge 32 includes a curved side 321 facing the patient's face and a connecting side 322 opposite thereto, and the connecting side 322 is configured to be connected to the smooth side 311 of the elastic body 31. The sponge 32 is used to connect the elastic body 31 and provide an attachment point for the comfort layer 4. The elastic body 31, the sponge 32 and the comfort layer 4 together form a deformable sealing part in the breathing mask 1, and the sponge 32 has adsorption, air permeability and noise reduction properties. The sponge 32 has an arc-shaped profile to better seal the patient's face and fit the support chamber 2 or the elastic body 31; the sponge 32 can also be a continuous or discontinuous shape, and the continuous annular sponge can be directly attached to the surface of the elastic body 31; the connecting side 322 can be a plane or a curved surface, and its softness and deformability support the sponge 32 to conform to the deformation of the joint. The sponge 32 may have a non-uniform thickness, with the thickest part being at least 0.5 mm, to ensure that sufficient deformation and breathable area are provided, and gradually decrease from the middle to the two sides close to the inner and outer edges, forming a gradient thickness, so that the sponge 32 can be more smoothly attached to the elastomer 31 to avoid steps causing indentations on the patient's face; it may also have a uniform thickness to ensure that the buffer part 3 formed after the sponge 32 is connected to the elastomer 31 can fit smoothly with the patient's face.The material of the sponge needs to be resistant to disinfection, breathable, water-absorbent, and biocompatible (good biocompatibility will not cause allergies or other adverse reactions, and is suitable for contact with the human body), etc. It can be a medical polyurethane sponge (with good biocompatibility, light and soft, and hypoallergenic), a medical wax sponge (which can absorb liquids and is suitable for wound dressings and hemostasis), a polyether sponge (with high elasticity and durability), a polyester sponge (light and soft), etc. The sponge 32 and the elastomer 31 are bonded and fixed by glue. Several factors need to be considered for the selection of glue materials: 1) Bonding strength: ensure that different types of tissues and materials can be bonded, the bond is stable and durable, and no relative displacement or falling off occurs under the action of external force, and normal adhesion must be maintained even in the environment of sweat, oil and other body fluids; 2) Material properties: biocompatibility, non-toxicity (no release of harmful substances or harmful gases), biodegradability, antibacterial properties, operability (with appropriate viscosity and fluidity), and rapid curing; 3) Appearance and odor: no irritating or unpleasant odor is released, and comfortable colors are selected to ensure that patients are in a good mood when using it; 4) Environmental protection: The glue contains a low amount of volatile organic compounds, and usually adopts a water-based or solvent-free formula to reduce the probability of volatilization into the air and negatively affect patient health and air quality.

[0088] The comfort layer 4 includes a first side 41 that at least partially contacts the patient's face, and a second side 42 opposite thereto. The material of the comfort layer 4 can be an absorbent material or a breathable material, such as cloth or other comfortable fabrics, flannel, etc.; it has the advantages of being water-absorbent and highly breathable, and can effectively absorb the patient's facial secretions at night, keep the patient's face dry and breathable, and improve the patient's compliance with the use of the breathing mask 1 for treatment. In order to ensure that the comfort layer 4 can have better durability and is not easy to be torn or worn, the thickness of the comfort layer 4 should be at least 0.2mm and not more than 3.5mm. The material of the comfort layer 4 can be one or more natural fabrics or synthetic fibers such as cotton (soft and breathable), silk elastic fabric, wool, spandex, polyester elastic fiber, polyester fiber (wrinkle-resistant, wear-resistant), nylon fiber (high strength, wear-resistant), acrylic (excellent elasticity, durability), and polypropylene fiber (lightweight, wear-resistant); part of the comfort layer 4 can also be made with metal fibers to make different functional comfort layers 4, such as antibacterial fabrics, antistatic fabrics, etc. Since the permeability of the breathing mask 1 should be lower than 20L / min, there are certain requirements for the air permeability of the comfort layer 4, which needs to make the user feel comfortable but not allow too much gas to leak. According to the air permeability test method in ASTMD737, the air permeability of the comfort layer 4 should be between 1-30CFM; in another embodiment, the air permeability is about 40-60CFM; or 50-80CFM. At the same time, the comfort layer 4 needs to be able to absorb the sweat on the user's face, so the water absorption of the comfort layer 4 should also have certain requirements. According to the test method in AATCC 79, the comfort layer 4 should have a water absorption time of less than 30 seconds, preferably less than 20 seconds, and more preferably less than 10 seconds. In addition to the adsorption effect, the main function of the comfort layer 4 is to enhance the tearing fastness of the sponge and prevent the sponge from cracking or wearing out; the connection state between the sponge 32 and the comfort layer 4 can be that the comfort layer 4 is completely in contact with the curved side 321 of the sponge 32. Because the comfort layer 4 needs to contact the patient's face, the Ra (surface roughness) value of the first side 41 that contacts the face is particularly important to avoid the situation where the surface is too rough and scratches the patient's face. The surface roughness of different types of materials will vary due to factors such as material properties and processing technology, so the Ra value should range from 0.2 to 10 microns. The inner edge of the fabric can be a triangle, an ellipse, a gourd, a teardrop, or other shapes that can contain the mouth and nose airway, and the outer edge can be made into different shapes based on the support chamber 2 or the sponge 32 and the elastic body 31. The shape of the inner edge and the outer edge can be the same or different; the comfort layer 4 can be formed by shearing, laser, cutting, water jet, CNC, etc., to obtain the desired shape.The comfort layer 4 and the sponge 32 can be bonded by glue, hot melt, pressure bonding, sewing, pressing, laser welding, etc., or the comfort layer 4 can be connected to the sponge by TPU or other materials that are different from the comfort layer 4 and the sponge 32; in order to ensure the quality and performance of the composite, several factors should be noted: 1) Material selection: Select a suitable composite material to ensure the compatibility between the materials and avoid delamination or non-bonding during the composite process; 2) Pretreatment: Before composite, the surface of the material should be kept clean and tidy, free of oil, dust, wrinkles and other pollutants that affect the user experience; 3) Characteristics: When selecting different composite processes, their characteristics should be fully considered. For example, glue needs to consider non-toxicity and adaptability, and hot melt, pressing, etc. need to consider whether temperature and pressure will cause material damage or deformation; 4) Environmental protection: No matter which method is chosen, energy conservation, waste disposal, process optimization, etc. need to be fully considered; after the sponge 32 is composited with the comfort layer 4, the comfort layer 4 can conform to the deformation of the sponge 32. The comfort layer 4 can be continuous or discontinuous, and the ratio of the surface area of ​​the first side 41 of the comfort layer 4 to the surface area of ​​the sponge curved side 321 is 0.2-5, ensuring that the comfort layer 4 and the sponge body 32 can be used to perform sensitive protection on different areas according to the patient's needs. The comfort layer 4 at least partially contacts the patient's nose bridge area 5, and the area of ​​the contact area with the nose bridge is 1-5mm. 2 The inner edge circumference of the comfort layer 4 is not less than 126 mm to ensure that it can accommodate the patient's oral and nasal airway.

[0089] It should be noted that the elastomer 31, the sponge 32 and the comfort layer 4 together form a seal on the patient's face in order to solve the problem that most existing respiratory masks 1 use silicone or similar airtight materials to fit the patient's face: due to long-term wearing and compression, the patient's face may produce red marks and pressure sores during use, or due to physiological reasons, the patient's face may produce oil and sweat during use, resulting in reduced friction between the airtight and non-absorbent silicone pad and the patient's face, causing the respiratory mask 1 to fall off or misplace, thereby weakening the overall sealing of the respiratory mask 1 and weakening the treatment effect. The cloth and sponge have pores and surface tension, and the pores can accommodate gas and liquid molecules. When sweat and oil adhere to the surface of the cloth or sponge, the surface tension will absorb the gas or liquid molecules, which can ensure that the patient's face is dry and comfortable all night, and avoid the relative displacement of the breathing mask 1 with the face due to the sweat or oil secreted by the patient. In addition, since the sponge has strong resilience and softness, it can quickly self-adjust to produce deformation and fit according to the three-dimensional features of the patient's face when it contacts the patient's face. Therefore, the present invention adopts a material with comfort, breathability and elasticity, and sets the elastomer 31 with strong deformation ability and the sponge 32 as the buffer part 3, so that the breathing mask 1 can buffer itself and adapt to the patient's facial contour, and increase the breathable comfort layer 4, which can improve the overall use experience of the breathing mask 1 while ensuring the sealing of the breathing mask 1.

[0090] Please combine Figures 1 to 4 , the comfort layer 4 has an annular profile (a continuous shape connected end to end), the comfort layer 4 contacts the bridge of the nose region 5 and the inner edge of the comfort layer 4 is smaller than the inner edge of the elastic body 31, and the inner edge of the sponge 32 is larger than the inner edge of the elastic body 31. The buffer part 3 and the comfort layer 4 correspond to the bridge of the nose region 5, the under-eye region 6 and the chin region 7 of the patient, and the buffer part 3 can deform to fit the user's face, and the comfort layer 4 conforms to the sponge 32 to produce corresponding deformation. In order to improve the deformation capacity of the buffer part 3, the elastomer 31 in the buffer part 3 has different elastic moduli in different regions.

[0091] Please combine Figure 5In order for the respiratory mask 1 to meet the needs of different groups of people for softness and functionality during use, the comfort layer 4 in the respiratory mask 1 can be multi-layered. The material of the comfort layer 4 in the present invention can be one or more natural fabrics or synthetic materials, and can be composited in multiple layers to achieve a soft and fluffy texture. In this way, when the patient's face contacts the respiratory mask 1 during wearing, in addition to the sealing adjustment of the buffer part 3, the multi-layer comfort layer 4 can also provide certain adjustments to achieve the best sealing effect. The material of the comfort layer 4 in the present invention can also include metal fibers and other materials that can be composited into materials with functions other than comfort. When the patient uses this multi-layer composite comfort layer 4, the respiratory mask 1 can provide it with antibacterial, antistatic or constant temperature effects.

[0092] Please combine Fig.13 , the contact range between the outer edge of the comfort layer 4 and the elastic body 31 can be different. Fig.12 -A, in this embodiment, the outer edge of the comfort layer 4 can be connected to the elastic body 31, such as Fig.12 -B, in this embodiment, the outer edge of the comfort layer 4 can be connected to the junction of the elastomer 31 and the support chamber 2, and the outer edge of the sponge 32 is wrapped into the comfort layer 4, which can prevent the edge of the sponge 32 from being easily damaged and extend the life of the breathing mask 1.

[0093] Example 2

[0094] The breathing mask 1 with sponge cloth in this embodiment is configured to pass through the user's nose bridge area 5, the area under the eyes 6 to the chin area 7 in the longitudinal direction, and surround the user's oral airway and nasal airway to form a sealed area, and deliver airflow pressurized relative to the ambient air pressure to the user's nasal airway and oral airway, including a support chamber 2, a buffer part 3 and a comfort layer 4. The breathing mask 1 provided in this embodiment is different from the breathing mask 1 in embodiment 1 in that the buffer part 3 is only a sponge 32. Figure 6-7 As shown, the sponge 32 in this embodiment is directly connected to the support chamber 2 (as shown in FIG. Figure 6 As shown, Figure 6It is a side view of the sponge 32 directly connected to the platform 24 of the support chamber 2. The part above the horizontal line is the comfort layer 4 attached to the sponge 32, and the part below the horizontal line is the hidden comfort layer 4 and shows that the sponge 31 is connected to the platform 24 of the support chamber 2). Specifically, the second opening 23 of the support chamber 2 is configured to be connected to the foam body. The second opening 23 provides a platform 24 connected to the sponge 32. The platform 24 can extend from the second opening 23 to both inside and outside, or to one side. The inner edge circumference of the platform 24 must not be less than 114.5mm to ensure that the sponge 32 is firmly connected and the sealing range includes the nasal and oral airways. The sponge 32 includes a curved side 321 facing the patient's face and a connecting side 322 opposite thereto. The connecting side 322 is configured to be connected to the second opening 23 of the support chamber 2. The thickness of the sponge 32 is at least 8mm and the width is at least 8mm to ensure that the buffer structure has sufficient volume for compression deformation. The density range of the sponge 32 is 10-200kg / m 3 , to avoid the increase of sponge hardness and weight due to excessive density and the decrease of deformation ability and water absorption, and the decrease of water absorption performance due to insufficient elasticity due to too low density; the connection method between the sponge body 32 and the platform 24 of the supporting chamber 2 can be a non-detachable connection such as glue, hot melt, welding, etc. The comfort layer 4 is connected to the curved side 321 of the sponge body 32 and can deform in accordance with the deformation of the sponge. The complete sponge cushioning layer makes the breathing mask 1 softer and more breathable, and the breathing mask 1 has fewer types of materials and is more environmentally friendly.

[0095] Please combine Figure 8 In order for the respiratory mask 1 to meet the needs of different groups of people for softness and functionality during use, the comfort layer 4 in the respiratory mask 1 can be multi-layered. The material of the comfort layer 4 in the present invention can be one or more natural fabrics or synthetic materials, and can be composited in multiple layers to achieve a soft and fluffy texture. In this way, when the patient's face contacts the respiratory mask 1 during wearing, in addition to the sealing adjustment of the buffer part 3, the multi-layer comfort layer 4 can also provide certain adjustments to achieve the best sealing effect. The material of the comfort layer 4 in the present invention can also include metal fibers and other materials that can be composited into materials with functions other than comfort. When the patient uses this multi-layer composite comfort layer 4, the respiratory mask 1 can provide it with antibacterial, antistatic or constant temperature effects.

[0096] Example 3

[0097] The breathing mask 1 with sponge cloth in this embodiment is configured to pass through the user's nose bridge area 5, the area under the eyes 6 to the chin area 7 in the longitudinal direction, fit the face of the user not exceeding the cheekbones in the transverse direction, and surround the user's oral airway and nasal airway to form a sealed area, and deliver air pressure relative to the ambient air pressure to the user's nasal airway and oral airway, including a support chamber 2, a buffer part 3 and a comfort layer 4. The breathing mask 1 provided in this embodiment is different from the breathing mask 1 in embodiment 1 in that the area covered by the sponge body 32 is as follows. Fig. 9 As shown, in this embodiment, the sponge 32 is non-annular (the head and tail are not connected). Specifically, the sponge 32 is roughly in an inverted V shape. The uppermost end can seal the nose bridge area 5, and the lowermost end is not lower than the under-eye area 6, and is connected to the elastomer 31. The sponge 32 can have a non-uniform thickness and have different elastic moduli in different areas. After the connection, the lowermost end and the elastomer 31 do not produce an obvious step, and are smoothly connected to the elastomer 31; the comfort layer 4 partially fits the sponge 32 and partially fits the elastomer 31. The inverted V-shaped sponge and the elastomer 31 together form the buffer part 3 of the breathing mask 1, providing a more comfortable sealing environment for the nose bridge area 5, avoiding the pressure on the nose bridge caused by the single elastomer 31 seal, and using a comfortable and breathable material layer on the nose bridge, under the eyes and other oily areas to absorb the grease and sweat generated by the patient during use, reduce the occurrence of relative displacement, and improve the overall use experience of the breathing mask 1.

[0098] This embodiment can be modified in two ways. One is as follows: Fig.10 As shown, the sponge 32 is roughly U-shaped, with the uppermost end not exceeding the under-eye area 6, the lowermost end sealing the chin area 7, and connected to the elastic body 31. The sponge 32 can have a non-uniform thickness and different elastic moduli in different areas. After connection, the uppermost end does not produce an obvious step with the elastic body 31, and is smoothly connected to the elastic body 31; the comfort layer 4 partially fits the sponge 32 and partially fits the elastomer 31. The U-shaped sponge and the elastomer 31 together form the buffer part 3 of the breathing mask 1, providing a greater degree of sealing for the chin area 7, avoiding the single elastomer 31 from failing to fully fit the patient's chin contour and resulting in reduced air tightness. The second is as Fig.11 As shown, the sponge 32 has a certain curvature, the uppermost end does not exceed the under-eye area 6, and is connected to the elastomer 31. The sponge 32 can have a non-uniform thickness and have different elastic moduli in different areas. After connection, the uppermost end and the lowermost end do not produce obvious steps with the elastomer 31, and are smoothly connected to the elastomer 31; the comfort layer 4 partially fits the sponge 32 and partially fits the elastomer 31. The regional sponge and the elastomer 31 together form the buffer part 3 of the breathing mask 1, providing a better seal for patients with facial trauma or dents.

[0099] Example 4

[0100] The breathing mask 1 with sponge cloth in this embodiment is configured to pass through the user's nose bridge area 5, the area under the eyes 6 to the chin area 7 in the longitudinal direction, fit the face of the user not exceeding the cheekbones in the transverse direction, and surround the user's oral airway and nasal airway to form a sealed area, and deliver air pressure relative to the ambient air pressure to the user's nasal airway and oral airway, including a support chamber 2, a buffer part 3 and a comfort layer 4. The breathing mask 1 provided in this embodiment is different from the breathing mask 1 in embodiment 1 in that: the range of contact of the inner edge of the comfort layer 4. Fig.13 -A and Fig.14 -C, when the inner edge of the comfort layer 4 is larger than the inner edge of the elastic body 31 and smaller than the inner edge of the sponge body 32, and the inner edge of the sponge body 32 is smaller than the inner edge of the elastic body 31, the comfort layer 4 and the elastic body 31 are in contact with the patient's face together; Fig.13 -B and Fig.14 -C, the inner edge of the comfort layer 4 is equal to the inner edge of the sponge 32 and is larger than the inner edge of the elastic body 31. At this time, the comfort layer 4 and the elastic body 31 are in contact with the patient's face together; Fig.13 -C and Fig.14 -D, the inner edge of the comfort layer 4 is smaller than the inner edge of the elastomer 31, and at this time, the comfort layer 4 contacts the patient's face alone; the outer edge of the sponge 32 is wrapped into the comfort layer 4, which can prevent the edge of the sponge 32 from being easily damaged, thereby extending the life of the breathing mask 1, and also preventing some patients from having allergic reactions or skin sensitivity to the sponge, which may cause discomfort when using the breathing mask 1.

[0101] In addition, the technical features in the above embodiments may be combined as needed to obtain a breathing mask 1 including all or part of the above technical features.

[0102] The breathing mask 1 with sponge cloth of the present invention has at least the following beneficial effects:

[0103] 1) It is more comfortable to wear and more stable to use. Compared with the existing pure silicone breathing mask 1, adding a layer of material with comfort and breathability such as sponge and comfort layer 4 can improve the overall use experience of the breathing mask 1. Cloth and sponge have pores and surface tension. The pores can accommodate gas and liquid molecules. When sweat and oil adhere to the surface of the cloth or sponge, their surface tension will absorb the gas or liquid molecules. The pore structure inside the sponge is huge and intricate. When the comfort layer 4 is overloaded by adsorption, it can continue to flow to the sponge body 32 through the connection, ensuring that the patient's face is dry and comfortable all night, and avoiding the relative displacement of the breathing mask 1 from the face due to the sweat or oil secreted by the patient.

[0104] 2) Disperse pressure and reduce indentation. The sponge 32 is elastic, and the pore structure of the sponge allows the breathing mask 1 to expand when subjected to external pressure, dispersing the pressure to a wider area to reduce the sense of oppression at specific points and better disperse the pressure. Air can flow through the pores, making the sponge 32 fluffy and not pressing the face, and avoiding the skin allergy problem caused by airtightness. The soft material of the sponge allows the breathing mask 1 to better adapt to the three-dimensional height of the face, produce corresponding deformation without causing pressure, reduce the indentation of the breathing mask 1, and provide a more comfortable use experience.

[0105] 3) The sponge has good wrinkle resistance and shape retention performance. The wrinkle resistance performance means that the sponge can mostly rebound and restore its original shape under the action of external force, and it is not easy to wrinkle like paper, cloth, etc.; the shape retention performance means that the sponge can still maintain its original shape without permanent deformation after a long time or after being subjected to continuous external force; the sponge is softer than the elastomer 31. Attaching the sponge 32 to the elastomer 31 can better provide a deformable buffer layer for the patient. The pore structure of the sponge can adapt to form the most suitable seal with the patient's face and avoid the leakage effect caused by partial displacement; when the patient takes off the breathing mask 1, the shape retention of the sponge comes into play, restoring the breathing mask 1 to its original state, avoiding the situation where the silicone becomes hardened and cannot be deformed after long-term use, thereby extending the service life of the breathing mask 1.

[0106] 4) Fabric enhances the tear strength of sponge. Sponge becomes soft and breathable due to its tiny and huge pore structure, but its pore connection structure or connection wall is too small, which can easily cause breakage and fall off under long-term wear and deformation, resulting in sponge debris, which can be easily inhaled by patients during use. Fabric can add a layer of protective film to the surface of the sponge to ensure that its deformation function remains unchanged while providing patients with the same comfortable and safe contact surface. In addition, due to the addition of the protective film, the protective film has better wear resistance and toughness, and the debris and tearing caused by wear on the sponge surface are greatly reduced.

[0107] 5) Better sealing. Compared with the existing breathing mask 1, the breathing mask 1 with sponge and comfort layer 4 is more user-friendly. For a small number of user groups, such as people with beards or people with facial depressions after trauma, the sponge and comfort layer 4 are softer and have stronger deformation ability, which can fill the grooves, such as the small protrusions formed by the beard and the face. For the one-piece elastic part, when it fits with the face, there will be gaps around the beard, which reduces the sealing performance of the patient interface pad; while the soft comfort layer 4 and sponge 32 can better conform to the facial contour, and under the pressure of the face, fill the gaps around the beard to achieve better sealing; and the pore structure of the two also ensures that patients with facial trauma have sufficient air permeability to avoid symptoms such as inflammation.

[0108] 6) Components can be modularly matched to reduce carbon emissions in production. Using the same mask as the basis, modular component production means a more refined and efficient production process. The main components can be carefully designed to increase the service life of the main components, and components with additional functions can be combined with the main components according to patient needs, which helps to reduce energy consumption and waste in the production process. By reducing energy consumption and waste and recycling some components, carbon emissions in production can be reduced and the environment can be protected.

[0109] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A breathing mask with a sponge cloth, used for sealing and delivering airflow pressurized relative to ambient air pressure to the entrance of the patient's nasal and oral airways, characterized in that: include: The support chamber is at least partially rigid, and includes a curved side wall, the side wall is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening, and the axisymmetric opening close to the patient's face is a second opening, the first opening is configured to receive pressurized gas, and the second opening is configured to connect to the buffer portion; The buffer part includes an elastic body and a sponge body, wherein the elastic body includes a smooth side at least partially conforming to the curve of the patient's face, and a fixed side connected to the support chamber, the smooth side and the fixed side are connected by an arc, and the sponge body includes a curved side facing the patient's face and a connecting side opposite thereto, and the connecting side is configured to be connected to the smooth side of the elastic body; as well as A comfort layer, comprising a first side at least partially in contact with the patient's face, and a second side opposite thereto, wherein the second side is configured to be connected to the sponge, the comfort layer contacts the nose bridge area, the comfort layer and the buffer portion together achieve sealing of the patient's face, and the comfort layer is made of at least one absorbent material; The comfort layer is configured such that the inner edge can accommodate the oral and nasal airway of the patient, wherein the inner edge is smaller than or equal to the inner edge of the elastic body, and is configured such that the comfort layer alone contacts the patient's face; The buffer part and the comfort layer have deformable capabilities, wherein when the same pressure is applied to different points of the buffer part and the comfort layer in a direction perpendicular to the coronal plane, the buffer part and the comfort layer deform to different degrees at different locations.

2. The breathing mask with sponge cloth according to claim 1, characterized in that: The buffer part and the comfort layer correspond to the user's nose bridge area, under-eye area and chin area, and when in use, the buffer part produces different deformations in various areas and fits the user's face, and the comfort layer conforms to the spongy body to produce corresponding deformations.

3. The breathing mask with sponge cloth according to claim 1, characterized in that: The inner edge of the sponge body is greater than or equal to the inner edge of the comfort layer.

4. The breathing mask with sponge cloth according to claim 1, characterized in that: The elastomer has different elastic moduli in different regions.

5. A breathing mask with a sponge cloth, used for sealing and delivering airflow pressurized relative to ambient air pressure to the entrance of the patient's nasal and oral airways, characterized in that: include: The support chamber is at least partially rigid, and includes a curved side wall, the side wall is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening, and the axisymmetric opening close to the patient's face is a second opening, the first opening is configured to receive pressurized gas, and the second opening is configured to connect to the buffer portion; The buffer part includes an elastic body and a sponge body, wherein the elastic body includes a smooth side at least partially conforming to the curve of the patient's face, and a fixed side connected to the support chamber, the smooth side and the fixed side are connected by an arc, and the sponge body includes a curved side facing the patient's face and a connecting side opposite thereto, and the connecting side is configured to be connected to the smooth side of the elastic body; as well as A comfort layer, comprising a first side at least partially in contact with the patient's face, and a second side opposite thereto, wherein the second side is configured to be non-detachably connected to the sponge body, the comfort layer and the buffer portion together achieve sealing of the patient's face, and the comfort layer is made of at least one absorbent material; The comfort layer is configured such that the inner edge can accommodate the oral and nasal airway of the patient, wherein the comfort layer at least partially covers the sponge, the inner edge of the comfort layer portion is larger than the edge of the curved surface side of the sponge, and the comfort layer is configured to seal the patient's airway together with the sponge; The cushioning part and the comfort layer are deformable, and the comfort layer is configured to conform to the sponge and produce deformation during use.

6. The breathing mask with sponge cloth according to claim 5, characterized in that: The inner edge of the sponge body is smaller than or equal to the inner edge of the elastic body.

7. The breathing mask with sponge cloth according to claim 5, characterized in that: The comfort layer and the sponge may be continuous or discontinuous.

8. The breathing mask with sponge cloth according to claim 5, characterized in that: The shape of the inner edge of the sponge is roughly triangular, teardrop-shaped, V-shaped, or U-shaped.

9. A breathing mask with a sponge cloth, used for sealing and delivering airflow pressurized relative to ambient air pressure to the entrance of the patient's nasal and oral airways, characterized in that: include: The support chamber is at least partially rigid, and includes a curved side wall, the side wall is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening, and the axisymmetric opening close to the patient's face is a second opening, the first opening is configured to receive pressurized gas, and the second opening is configured to connect to the buffer portion; The buffer portion is a sponge, the sponge comprising a curved side facing the patient's face and a connecting side opposite thereto, the connecting side being configured to connect to the second opening of the supporting chamber; as well as A comfort layer, comprising a first side at least partially in contact with the patient's face, and a second side opposite thereto, wherein the second side is configured to be connected to the sponge, the comfort layer contacts the nose bridge area, the comfort layer and the buffer portion together achieve sealing of the patient's face, and the comfort layer is made of at least one absorbent material; The sponge has one or more of the following characteristics: a. Thickness at least 8mm; b. The width is at least 8mm; c. Density range is 10-200kg / m 3 .

10. The breathing mask with sponge cloth according to claim 9, characterized in that: The support chamber has a platform provided for the sponge to be connected, and the sponge is connected to the platform.

11. The breathing mask with sponge cloth according to claim 9, characterized in that: The sponge body is connected to the platform of the supporting chamber by means of glue, hot melting or welding, which is an inseparable connection.

12. The breathing mask with sponge cloth according to claim 9, characterized in that: The sponge has different elastic moduli in different areas.

13. A breathing mask with a sponge cloth, used for sealing and delivering airflow pressurized relative to ambient air pressure to the entrance of the nasal and oral airways of a patient, characterized in that: include: The support chamber is at least partially rigid, and includes a curved side wall, the side wall is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening, and the axisymmetric opening close to the patient's face is a second opening, the first opening is configured to receive pressurized gas, and the second opening is configured to connect to the buffer portion; The buffer part includes an elastic body and a sponge body, wherein the elastic body includes a smooth side at least partially conforming to the curve of the patient's face, and a fixed side connected to the support chamber, the smooth side and the fixed side are connected by an arc, and the sponge body includes a curved side facing the patient's face and a connecting side opposite thereto, and the connecting side is configured to be connected to the smooth side of the elastic body; as well as A comfort layer, comprising a first side at least partially in contact with the patient's face, and a second side opposite thereto, wherein the second side is configured to be connected to the sponge body, the comfort layer and the buffer portion together achieve sealing of the patient's face, and the comfort layer is made of at least one breathable material; The comfort layer is configured such that the inner edge can accommodate the oral and nasal airway of the patient, wherein the comfort layer at least partially covers the sponge, the comfort layer at least partially covers the sponge, the inner edge of the comfort layer is larger than the edge of the smooth side of the elastic body, and the comfort layer is configured to seal the patient's airway together with the sponge; The cushioning part and the comfort layer have deformable capabilities, and the comfort layer is configured to conform to the sponge and deform during use; The comfort layer has one or more of the following characteristics: a. Thickness is at least 0.2mm; b. The Ra value of the first side surface is not less than 0.2; c. The ratio of the first side surface area of ​​the comfort layer to the sponge curved side surface area is 0.2-5.

14. The breathing mask with sponge cloth according to claim 13, characterized in that: The inner edge of the sponge body is smaller than or equal to the inner edge of the elastic body.

15. The breathing mask with sponge cloth according to claim 13, characterized in that: The material of the comfort layer can be natural fiber or synthetic fiber, and can be a single layer or a multi-layer composite.

16. The breathing mask with sponge cloth according to claim 13, characterized in that: The thickness of the comfort layer does not exceed 3.5 mm.

17. A breathing mask with a sponge cloth, used for sealing and delivering airflow pressurized relative to ambient air pressure to the entrance of the nasal and oral airways of a patient, characterized in that: include: The support chamber is at least partially rigid, and includes a curved side wall, the side wall is smoothly connected and formed to form two annular openings, the annular opening away from the patient's face is a first opening, and the axisymmetric opening close to the patient's face is a second opening, the first opening is configured to receive pressurized gas, and the second opening is configured to connect to the buffer portion; The buffer part includes an elastic body and a sponge body, wherein the elastic body includes a smooth side at least partially conforming to the curve of the patient's face, and a fixed side connected to the support chamber, the smooth side and the fixed side are connected by an arc, and the sponge body includes a curved side facing the patient's face and a connecting side opposite thereto, and the connecting side is configured to be connected to the smooth side of the elastic body; as well as A comfort layer, comprising a first side at least partially in contact with the patient's face, and a second side opposite thereto, wherein the second side is configured to be connected to the sponge, wherein the comfort layer contacts the nose bridge area, the comfort layer and the buffer portion together achieve sealing of the patient's face, and the comfort layer is made of at least one breathable material; The comfort layer is configured such that an inner edge can accommodate the oral and nasal airway of the patient, wherein the inner edge is smaller than or equal to an inner edge of the elastic body, and is configured such that the comfort layer alone contacts the patient's face; The buffer part and the comfort layer have deformable capabilities, wherein when the same pressure is applied to different points of the buffer part and the comfort layer in a direction perpendicular to the coronal plane, the buffer part and the comfort layer deform to different degrees at different locations, and the comfort layer is configured to deform in accordance with the sponge during use.

18. The breathing mask with sponge cloth according to claim 17, characterized in that: The inner edge of the sponge body is greater than or equal to the inner edge of the elastic body.

19. The breathing mask with sponge cloth according to claim 17, characterized in that: The elastic body is connected to the sponge body by molding, foaming and adhesive, and the sponge body is connected to the comfort layer by adhesive and foaming.

20. The breathing mask with sponge cloth according to claim 17, characterized in that: The cross-sectional shape of the sponge body is a triangle, a quadrilateral, a pentagon or a hexagon, and the inner edge of the sponge body can be smoothly connected to the elastic body.

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