Patient interface pad with cloth

Abstract

The utility model relates to the technical field of patient interface pads, and particularly discloses a patient interface pad with cloth, which is configured to supply pressurized breathing gas to a nasal airway and a mouth airway of a user, and comprises a rigid part configured to support an elastic part, the elastic part is provided with a first opening for introducing breathing gas of continuous positive airway pressure equipment and a second opening communicated with an inner cavity of the elastic part; the elastic part is configured to provide an attachment surface for the cloth part and is provided with a third opening which is adjacent to the rigid part and is communicated with the second opening and a fourth opening through which the mouth and the nose of a user enter an inner cavity of the elastic part; the cloth part is configured to surround the nose and the mouth of a user, a sealing area is formed between the lower lip area and the nose bridge area, and the cloth part is provided with a first surface close to and partially connected with the outer surface of the elastic part and a second surface at least sealing part of the face of the user; there is also an inner edge adjacent the fourth opening and an outer edge remote from the fourth opening.

Description

Technical Field

[0001] The utility model relates to the technical field of patient interface pads, in particular to a patient interface pad that provides sealing for the nasal and oral airways of a user, and more specifically to a patient interface pad with cloth that contacts the user's face to improve comfort when worn. Background Art

[0002] In order to adapt to the different needs and preferences of user groups, continuous positive airway pressure therapy has developed many types and styles of patient interface pads, such as full-face masks, nasal masks, and nasal pillow masks. Nasal masks and nasal pillow masks are lighter than full-face masks, but for users who breathe through their mouths, full-face masks are still the best choice. At present, new types of oronasal masks have appeared on the market, which can also provide pressurized gas to the user's oral and nasal airways at the same time, but this type of mask seals the area between the nose tip and the lower lip below the user's nose bridge. The seal of the oronasal mask to the nose tip is only achieved by the mask blown by pressurized air and the skin of the nose tip. In this case, if the user moves during sleep, the nose is displaced, or due to personal differences in the nose tip, the oronasal mask may be inappropriate. The sealing performance of the full-face mask will be better, and the larger surface area can disperse the pressure.

[0003] However, most full-face masks currently use flexible seals such as silicone and rubber to seal with the user's face. This flexible seal can fit the morphological changes of various parts of the face very well. Usually, in order to achieve a good seal, the flexible seal is polished to reduce the roughness of the seal surface and make the seal surface smooth, but this smooth surface will feel slightly sticky when it contacts the face. In addition, most users wear masks at night when sleeping, and the continuous wearing time is about 6-8 hours or more. During sleep, the face will secrete oil and sweat. When oil and sweat contact the smooth seal, the user may feel sticky and uncomfortable. The secretion may also cause the mask to move more easily. Long-term wearing, coupled with the tightening of the headband to make the mask fit the skin and exert pressure on the face, may cause skin irritation and pressure sores, especially for the two sides of the nose bridge, where the fluctuations are relatively large, usually requires more force to tighten the mask, resulting in red marks.

[0004] Therefore, some products that improve the user's physical condition were launched on the market - mask liners (Cpap MaskLiners) and mask covers (Cpap Mask cover). The mask liner is a piece of textile that is placed between the mask and the user's face, allowing the liner to absorb grease and sweat to achieve a more comfortable use effect. However, since there is no fixed part, it is extremely difficult for the user to wear it, and it is difficult to fix the liner in the right position. Even if it is fixed in place, it will fall off due to movement during sleep at night. The mask cover has the same function, except that a fixed part - an elastic band - is added to the mask liner to prevent it from falling off the mask at night. However, there is still a possibility of movement on the side that fits the face, and the mask cover is relatively thick, which may cause wrinkles and air leakage when the user wears it. Neither of these can effectively solve the comfort problem of the mask.

[0005] Recently, a full-face mask with a sponge on the mask has been launched. This mask can reduce the pressure of the mask on the face and reduce the occurrence of red marks and pressure sores, but the requirements for the sponge are very high. It needs to have a suitable contour shape, and the sponge also needs to be selected with a material whose permeability is within the treatment range. And because the mask has a sponge, it cannot be washed with water, the sponge is difficult to clean, and it cannot be replaced if it is dirty. The soft sponge is also easy to damage, and a new mask needs to be replaced after damage. Therefore, it is necessary to make a mask that gives users a better user experience, so that users can get a better treatment experience and improve user compliance. Utility Model Content

[0006] Based on this, it is necessary to provide a patient interface pad that is better cleaned, replaceable and comfortable to use in response to the above-mentioned shortcomings.

[0007] In order to solve the above problems, the utility model provides a patient interface pad with cloth, which is configured to supply pressurized breathing gas to the nasal airway and oral airway of the user, comprising: a rigid part, configured to support the elastic part, one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening connected to the inner cavity of the elastic part; an elastic part, configured to be connected to the rigid part and provide an attachment surface for the cloth part, the elastic part has a third opening adjacent to the rigid part and connected to the second opening, and a fourth opening away from the rigid part for allowing the mouth and nose of the user to enter the inner cavity of the elastic part; and a cloth part, configured to surround the nose and mouth of the user and form a sealing area between the lower lip area and the bridge of the nose area, having a first surface close to and partially connected to the outer surface of the elastic part, and a second surface away from the elastic part and sealing at least a part of the bridge of the nose of the user; wherein the cloth part has an inner edge adjacent to the fourth opening and an outer edge away from the fourth opening, the inner edge is smaller than or equal to the fourth opening of the elastic part, and the inner edge of the cloth part has an overhanging part.

[0008] In one embodiment, the rigid part is made of a first material, the elastic part is made of a second material, and the fabric part is made of a textile material, wherein the first material is polycarbonate and the second material is silicone with a hardness in the range of Shore 30A-70A.

[0009] In one embodiment, the first surface of the fabric portion and the outer surface of the elastic portion are directly connected and non-detachable, and the direct connection method includes silicone adhesive, heat pressing, and molding.

[0010] In one of the embodiments, the outer edge of the fabric portion is larger than the outermost projection of the elastic portion in the X-axis direction.

[0011] The utility model also provides a patient interface pad with cloth, which is configured to supply pressurized breathing gas to the nasal airway and oral airway of the user, including: a rigid part, configured to support the elastic part, one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening connected to the inner cavity of the elastic part; the elastic part is configured to be connected to the rigid part and provide an attachment surface for the cloth part, the elastic part has a third opening adjacent to the rigid part and connected to the second opening, and a fourth opening away from the rigid part for allowing the user's mouth and nose to enter the inner cavity of the elastic part; the cloth part is configured to form a sealing area between the user's lower lip area and the nose bridge area, and has a first surface adjacent to the outer surface of the elastic part and away from the elastic part. The elastic portion comprises a second surface that is partially and at least seals a portion of the user's face, the inner edge of the fourth opening being adjacent to the outer edge of the fourth opening and being away from the fourth opening; and an adhesive layer, which is arranged between the outer surface of the elastic portion and the first surface of the fabric portion, and is used to connect the elastic portion and the fabric portion; wherein the elastic portion has a tab for fitting the nasal side wall in the nasal side area, the inner edge is larger than the fourth opening of the elastic portion, and the elastic portion and the fabric portion are configured to seal the user's face together; wherein the fabric portion is elastic, and when subjected to pressure, the fabric portion changes in accordance with the curvature of the elastic portion, wherein when the same pressure is applied to different points of the fabric portion in the X-axis direction, the displacement distances of different points on the second surface of the fabric portion are different.

[0012] In one embodiment, the adhesive layer is glue or double-sided tape, and has a thickness of 0.01-0.3 mm.

[0013] In one embodiment, the surface area of ​​the second surface of the fabric portion is at least 3.5% of the outer surface area of ​​the elastic portion.

[0014] In one embodiment, the fabric portion is single-layered and has a uniform thickness.

[0015] The utility model further provides a patient interface pad with cloth, which is configured to supply pressurized breathing gas to the nasal airway and oral airway of the user, comprising: a rigid part, configured to support the elastic part, one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening connected to the inner cavity of the elastic part; the elastic part is configured to be connected to the rigid part and provide an attachment surface for the cloth part, the elastic part has a third opening adjacent to the rigid part and connected to the second opening, and a fourth opening away from the rigid part for allowing the user's mouth and nose to enter the inner cavity of the elastic part; the cloth part is configured to form a sealing area between the user's lower lip area and the nose bridge area, and has a first surface adjacent to the outer surface of the elastic part The invention relates to a first surface of the fabric portion, a second surface away from the elastic portion and sealing at least a portion of the bridge of the nose of the user, the fabric portion having an inner edge adjacent to the fourth opening and an outer edge away from the fourth opening; and an adhesive layer, arranged between the outer surface of the elastic portion and the first surface of the fabric portion, for connecting the elastic portion and the fabric portion; wherein the curvature of the first surface of the fabric portion fits the curvature of the elastic portion, and the fabric portion is elastic, and when subjected to pressure, the fabric portion changes in accordance with the change of the curvature of the elastic portion; wherein the elastic portion has a tab in the nose side area for fitting the nose side wall, the inner edge is larger than the fourth opening of the elastic portion, and the elastic portion and the fabric portion are configured to seal the face of the user together.

[0016] In one of the embodiments, the connection between the elastic portion and the fabric portion through the adhesive layer is detachable, and the adhesive layer is a peelable glue or a double-sided adhesive.

[0017] In one embodiment, the fabric portion is multi-layered, and a layer adjacent to the elastic portion is made of a low-permeability material that prevents the adhesive layer from penetrating to the second surface.

[0018] In one of the embodiments, the fabric portion is cut into a ring-shaped contour by laser, punching, or ultrasound, wherein the inner edge shape is a triangle or a teardrop shape.

[0019] The utility model further provides a patient interface pad with cloth, which is configured to supply pressurized breathing gas to the nasal airway and oral airway of the user, comprising: a rigid part, configured to support the elastic part, one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening connected to the inner cavity of the elastic part; an elastic part, configured to be connected to the rigid part and provide an attachment surface for the cloth part, the elastic part has a third opening adjacent to the rigid part and connected to the second opening, and a fourth opening away from the rigid part for allowing the mouth and nose of the user to enter the inner cavity of the elastic part; a cloth part, configured to surround the mouth and nose of the user and form a sealing area between the lower lip area and the bridge of the nose area, having a first surface adjacent to the outer surface of the elastic part, a second surface away from the elastic part and sealing at least a part of the user's face, the cloth part has an inner edge adjacent to the fourth opening and an outer edge away from the fourth opening; wherein the cloth part has one or more of the following characteristics:

[0020] a. The surface area of ​​the second surface is at least 3.5% of the surface area of ​​the elastic portion;

[0021] b. According to AATCC 79 test method, the water absorption time is less than 30 seconds;

[0022] c. The Ra value of the second surface is in the range of 0.2-10 microns;

[0023] d. Thickness is at least 0.6mm.

[0024] In one embodiment, the air permeability of the fabric portion is 1-30 CFM as tested according to ASTM D737 test method.

[0025] In one embodiment, the material of the fabric portion is one or a mixture of cotton fiber, linen fiber, polyester fiber, elastic fiber, nylon fiber, acrylic fiber, vinylon fiber, and nylon fiber.

[0026] In one embodiment, the diameter of the first opening is 10-45 mm, the first opening is smaller than the second opening, and the inner edge of the fabric portion is smaller than or equal to the fourth opening.

[0027] The utility model also provides a patient interface pad with cloth, which is configured to supply pressurized breathing gas to the nasal airway and oral airway of the user, including: a rigid part, configured to support the elastic part, one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening connected to the inner cavity of the elastic part; the elastic part is configured to be connected to the rigid part and provide an attachment surface for the cloth part, the elastic part has a third opening adjacent to the rigid part and connected to the second opening, and a fourth opening away from the rigid part for allowing the user's mouth and nose to enter the inner cavity of the elastic part; the cloth part is configured to be placed on the user The elastic part has a first surface adjacent to the outer surface of the elastic part, a second surface away from the elastic part and sealing at least a part of the nose bridge of the user, and the fabric part has an inner edge adjacent to the fourth opening and an outer edge away from the fourth opening; and an adhesive layer is arranged between the outer surface of the elastic part and the first surface of the fabric part, and is used to connect the elastic part and the fabric part; wherein the connection between the elastic part and the fabric part through the adhesive layer is a detachable connection, and the adhesive force provided by the adhesive layer to the fabric part is greater than the weight of the fabric part itself.

[0028] In one embodiment, the thickness of the fabric portion is at least 0.6 mm and at most 3.5 mm.

[0029] In one embodiment, the width of the fabric portion is at least 10 mm.

[0030] In one embodiment, the fabric portion is a discontinuous shape.

[0031] The patient interface pad with cloth of the present invention has at least the following beneficial effects:

[0032] 1) The utility model combines fabric with a complete patient interface pad to produce a patient interface pad with fabric. By adjusting the shape and contour of the fabric part, the fabric part can be in contact with the user's face alone or seal the user's face together with the elastic part. In addition, the connection between the fabric part and the elastic part is a detachable connection, which is more convenient for manufacturers to produce and stock. Only one patient interface pad (the same rigid part and the same elastic part) needs to be prepared, and two patient interface pads with completely different usage experience can be produced through subsequent processing - with fabric and without fabric; users have more choices and can choose to install the fabric or disassemble the mode according to their needs. In addition, the patient interface pad of the utility model without fabric is itself a complete product. The modular patient interface pad design with different experiences is produced through post-processing, which is more convenient for manufacturers to stock and store, reducing storage costs. At the same time, it also reduces the production of a variety of patient interface pads, reduces energy consumption, reduces carbon dioxide emissions, and contributes to maintaining the concentration of greenhouse gases in the atmosphere from rising.

[0033] 2) Compared with the existing patient interface pad that uses silicone to seal the face, the cloth is more breathable than silicone, and has the advantages of absorbing water and sweat, and can also absorb some grease, making the user feel more refreshed when wearing it, avoiding skin sensitivity problems, and also reducing the displacement of silicone after encountering sweat and grease. At the same time, the cloth is more skin-friendly than silicone, making the user more comfortable, reducing the depression of receiving treatment, easing the user's mentality, and bringing better compliance. And the increase in the cloth part reduces the contact between the elastic part of the patient interface pad and the face, extending the service life of the patient interface pad.

[0034] 3) Compared with the existing silicone patient interface pad, the utility model adopts a cloth part. For some user groups, such as people with beards or depressions on the face after trauma, the cloth is softer 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; and the soft cloth can better conform to the facial contour, and under the compression of the face, it can fill the gaps around the beard to achieve a better seal.

[0035] 4) Compared with the mask liner or mask pad of the prior art, the patient interface pad of the utility model can have the advantages of both, and can also fix the fabric part on the elastic part, so the curvature of the second surface of the fabric part fits the curvature of the outer surface of the elastic part, which can better fit the human face. And the fixation of the fabric part and the elastic part can avoid the wrinkles of the fabric part due to the movement of the head and the changes of facial muscles during sleep, which may cause air leakage and reduce the treatment effect. The fabric part is attached to the elastic part and belongs to the integral patient interface pad. The use steps are simpler, and there is no need to tediously adjust the position of the mask liner or mask pad, which is more convenient for users to use.

[0036] 5) Compared with the existing foam interface pad, the utility model has a simple process, low defect rate and reduced cost. The R&D process and production process of the foam interface pad are difficult. The foreseeable difficulties include foam raw materials, foam shape, and fitting production with silicone. First of all, the raw materials of the foam are extremely important. It is necessary to find the raw materials with suitable softness and hardness. After various ratio tests, a comfortable one is selected and the foam permeability is guaranteed not to affect the treatment effect; then it is necessary to make and develop a new silicone as a support for the foam part, and then after a series of tests, the height, shape and contour of the foam part and the silicone are determined. Secondly, in production, the molding cycle and production cycle of the foam material are longer than those of plastic and silicone. The general production process is to use foaming to make a cube; divide it into a suitable thickness; cut or mold it into a certain shape; and join it with the silicone part after molding. This is a difficult point for production, and if one of the links goes wrong, it will affect the production of subsequent links. The fabric of the utility model can choose the comfortable fabric commonly seen in daily life, which can be formed by simply cutting to reach the predetermined shape, and then connected to the elastic part to form it. In comparison, the process of the utility model is simpler, saving R&D costs and production costs, and has fewer steps, and fewer steps also means a lower error rate and a lower product defect rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the structure of a patient interface pad in one embodiment of the utility model;

[0038] Figure 2 This is a schematic diagram of the area division of a patient interface pad in one embodiment of the utility model;

[0039] Figure 3 It is a schematic diagram of the orientation of a patient interface pad in one embodiment of the utility model;

[0040] Figure 4 It is a schematic diagram of the exploded structure of the patient interface pad in one embodiment of the utility model;

[0041] Figure 5In one embodiment of the present invention, the patient interface pad is Figure 3 A schematic cross-sectional view along the Y axis;

[0042] Figure 6 This is a schematic diagram of different coverage ranges of the fabric part in one embodiment of the utility model;

[0043] Figure 7 This is a schematic diagram of different thicknesses of the fabric part in one embodiment of the utility model;

[0044] Figure 8 for Figure 3 Structural diagram of a cross section along the Z axis in multiple embodiments;

[0045] Fig. 9 are plan views of a cloth portion in various embodiments;

[0046] Fig.10 It is a schematic diagram of the force of the patient interface pad in one embodiment of the utility model;

[0047] Fig.11 for Figure 3 Schematic diagram of the projection of the rigid part and the elastic part in the X-axis direction;

[0048] Fig.12 It is a structural schematic diagram of a patient interface pad in another embodiment of the utility model;

[0049] Fig.13 It is a structural schematic diagram of a patient interface pad in another embodiment of the utility model;

[0050] Fig.14 This is a schematic structural diagram of a patient interface pad in yet another embodiment of the present utility model;

[0051] Fig.15 It is a partially enlarged schematic diagram of the wearing state of an embodiment of the utility model. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model 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 utility model. However, the utility model 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 utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0053] The utility model aims to solve the problems that the silicone used in traditional patient interface pads fits the face and is not breathable, causing the face to be easily oily and sweaty, and the displacement of the traditional patient interface pad affects the sealing; the foam interface pads in the prior art are easy to be damaged and have high production costs; and the mask pads and mask covers are prone to wrinkles and are difficult to wear. A patient interface pad with cloth is provided. The cloth fits the user's face, can absorb sweat and grease, and is more breathable, making the user's wearing experience more comfortable, reducing the depression of receiving treatment, alleviating the user's mentality during treatment, and bringing better compliance.

[0054] Several structures of the patient interface pad with cloth of the present invention are described below in combination with specific examples.

[0055] Example 1

[0056] For details, please combine Figures 1 to 5 In this embodiment, the patient interface pad 1 includes a rigid part 2, an elastic part 3, a fabric part 4, and an adhesive layer 5, wherein the patient interface pad 1 has a first end and a second end, and both ends have an opening. The opening of the first end is used to receive pressurized gas, and the opening of the second end is an opening for the user's mouth and nose to enter the cavity of the patient interface pad. The upper end of the patient interface pad contacts the user's nose bridge area, and the lower end contacts the user's chin area. The area surrounding the nose bridge and the chin is sealed to the user's face. The contact area of ​​the patient interface pad 1 and the face can be divided into a nose bridge area 11, a nose side area 12, a cheek area 13, and a chin area 14. At the same time, considering that the nose bridge and the chin have greater fluctuations than other parts of the face, the elastic coefficients of various parts of the patient interface pad 1 are different. When the same amount of pressure is applied to different points of the patient interface pad 1 in the same direction, the point displacement distances of the patient interface pad 1 are different.

[0057] The rigid part 2 is configured to support the elastic part 3. The rigid part 2 is composed of a first material and is formed by injection molding. The first material is a plastic material. In order to better support the elastic part 3, a hard plastic (with higher hardness and not easy to deform) is preferably used, such as high-density polyethylene (HDPE), polypropylene (PP), polycarbonate (PC), polystyrene (PS), etc. In this embodiment, the first material is polycarbonate. A first opening 21 for accessing the breathing gas of the continuous positive airway pressure device is opened at one end of the rigid part 2, and a second opening 22 connected to the inner cavity of the elastic part 3 is opened at the other end. There is a side wall between the first opening 21 and the second opening 22 for guiding the airflow to the elastic part 3, and a joint connected to the elastic part 3 is provided near the second opening 22. The size and shape of the first opening 21 are determined by the part where the frame or elbow is connected to the patient interface pad. Generally, the diameter of the first opening 21 is 10-45mm; the shape and size of the second opening 22 are determined by the contour of the connection between the elastic part 3 and the rigid part 2, which is generally annular, and the first opening 21 is smaller than the second opening 22. The side wall can be continuous and uniform, or it can be provided with intentional leakage openings (for exhausting the waste gas exhaled by the user without affecting the treatment effect), or it can have raised or recessed positioning and fixing devices (for positioning or fixing the frame or elbow), or it can be provided with interfaces with other functions such as oxygen interfaces.

[0058] The elastic part 3 is configured to be connected to the rigid part 2 and provide an attachment surface for the fabric part 4. The elastic part 3 is made of a second material and is directly joined to the rigid part 2 by molding or co-molding. At this time, a commonly used complete patient interface pad is formed to simultaneously deliver pressurized gas to the user's nasal airway and oral airway. The second material is softer than the first material, easier to deform, and can adapt to changes in the facial morphology. It is usually made of a flexible material with a hardness of 30A-70A on Shore A, such as silicone, rubber, elastic plastic, etc., and preferably a biocompatible material with a hardness of 35A-50A on Shore A. In this embodiment, the second material is silicone with a hardness in the range of 30A-70A on Shore A. The elastic part 3 can be divided into a connection area connected to the rigid part 2, an attachment area connected to the fabric part 4, and other transition areas. The elastic part 3 has a third opening 31 adjacent to the rigid part 2 and connected to the second opening 22. The third opening 31 is in the connection area of ​​the elastic part and is used to receive pressurized gas. The elastic part 3 has a fourth opening 32 facing the face and away from the rigid part 2 for the user's mouth and nose to enter the inner cavity of the elastic part 3. The wall thickness of the elastic part 3 can be single-layer or multi-layer, with different wall thicknesses. Generally speaking, at least one of the positions of the elastic part 3 corresponding to the nose bridge area 11 and the chin area 14 has a thin area, that is, the wall thickness is thinner than other non-thin areas (except for the thin area), and has a greater elastic deformation ability. Because the morphological changes of the nose bridge area 11 or the chin area 14 are greater than those of other facial areas, a larger deformation area needs to be set to adapt to the facial fluctuations and better fit the skin. The elastic part 3 has a tab 33 in the nose side area 12 for fitting the nasal side wall (the side walls on both sides of the nose), which can ensure that the patient interface pad 1 fits the face better, increase the air tightness of the mask, and prevent gas leakage.

[0059] The fabric part 4 is configured to surround the user's nose and mouth and form a sealing area between the lower lip area and the bridge of the nose. It is made of textile material and has the advantages of being water-absorbent and highly breathable. It can effectively absorb the user's facial secretions at night, making the user feel dry and breathable, and improving the user's tolerance for using the mask. The raw material of the textile material can be a natural fiber: one of cotton fiber, linen, silk, and wool; or a synthetic fiber: one of polyester fiber (polyester), elastic fiber (spandex), nylon fiber, acrylic fiber, vinylon fiber, and nylon fiber; or a non-woven fabric; or a blended fabric composed of two or more, such as a blend of cotton fiber and elastic fiber, a blend of nylon fiber and elastic fiber, a blend of acrylic fiber and nylon fiber, and a blend of elastic fiber, acrylic fiber, and vinylon fiber; and can also be made with metal fiber to produce different functional fabrics, such as antibacterial fabrics, antistatic fabrics, etc. In this embodiment, the material of the fabric part 4 is a mixture of one or more of cotton fiber, linen, polyester fiber, elastic fiber, nylon fiber, acrylic fiber, vinylon fiber, and nylon fiber. Since the permeability of the patient interface pad 1 should be lower than 20L / min, there are certain requirements for the air permeability of the fabric part 4, which needs to make the user feel comfortable but not allow too much gas to leak. The air permeability of the fabric part 4 is 1-30CFM according to the ASTM D737 test method; in another embodiment, the air permeability is approximately 40-60CFM; or 50-80CFM. At the same time, the fabric part 4 needs to be able to absorb the sweat on the user's face, so the water absorption of the fabric part 4 should also have certain requirements. According to the AATCC 79 test method, the water absorption time is less than 30 seconds, the preferred absorption time is less than 20 seconds, and the more preferred absorption time is less than 10 seconds. The function of the fabric part 4 is to give the user a more comfortable experience (compared with the elastic part 3, the fabric is more skin-friendly and the user feels more comfortable), and at the same time it can increase the seal (for some facial grooves, the fabric has better deformation ability and can be filled accordingly, such as Fig.15As shown). The fabric part 4 should be made of a relatively light, soft, and smooth fabric to avoid increasing the overall weight of the patient interface pad 1 or making the patient feel uncomfortable when touching it, so the count of the fabric part 4 should not be less than 30 and not more than 100. The fabric part 4 has a first surface 41 that is close to and partially connected to the outer surface of the elastic part 3, and a second surface 42 that is away from the elastic part 3 and seals at least a portion of the user's face. More specifically, the second surface 42 of the fabric part 4 at least contacts a portion of the user's nose bridge, and the Ra value (average roughness) of the second surface 42 is in the range of 0.2-10 microns. The fabric part 4 is elastic, and when subjected to pressure, the fabric part 4 changes in accordance with the curvature of the elastic part 3, wherein when the same pressure is applied to different points of the fabric part 4 in the X-axis direction, the displacement distances of different points of the second surface 42 of the fabric part 4 are different. As shown Figure 1 , Figure 4 , Fig. 9 As shown, the fabric portion 4 has an inner edge 43 adjacent to the fourth opening 32 and an outer edge 44 away from the fourth opening 32. The shapes of the inner edge 43 and the outer edge 44 can be roughly triangular, elliptical, teardrop-shaped or any other shape that can cover the elastic portion 3. The shapes of the inner edge 43 and the outer edge 44 are not necessarily the same, for example, the inner edge is teardrop-shaped and the outer edge is triangular; the inner edge is teardrop-shaped and the outer edge is elliptical. They can also be the same shape, for example, the inner edge is elliptical and the outer edge is elliptical; the shapes can be freely combined as long as the inner edge 43 can provide an opening for the user's mouth and nose to pass through. In this embodiment, the fabric portion 4 is cut into a roughly annular (continuous end to end) contour by laser, punching, or ultrasound, wherein the inner edge 43 is triangular or teardrop-shaped. The inner edge 43 is smaller than or equal to the fourth opening 32 of the elastic portion 3, the inner edge 43 of the fabric portion 4 has an overhanging portion, and the outer edge 44 of the fabric portion 4 is larger than the outermost projection of the elastic portion 3 in the X-axis direction (such as Fig.11 As shown in FIG. 1 , the fabric portion 4 is completely in contact with the user's face. The overhanging portion of the inner edge 43 can be blown up by the pressurized gas to fit the face more closely, increase the air tightness of the patient interface pad 1, and the fabric portion 4 alone seals the user's face, which can provide better comfort. Figure 8As shown, the thickness of the fabric portion 4 can be uniform or variable, for example, gradually becoming thinner at the outer edge 44 to fit the elastic portion 3 or gradually becoming thinner at the inner edge 43 to reduce the presence on the face. In this embodiment, the fabric portion 4 is single-layered and has uniform thickness. The fabric portion 4 cannot be too thin, otherwise the user can feel the elastic portion 3, and the effect of increasing the softness and comfort of the fabric portion 3 is lost. Therefore, the thickness of the fabric portion 4 is at least 0.6 mm. Too thick fabric is prone to leakage (increased thickness increases the area for gas penetration). Therefore, in order to ensure the sealing effect of the patient interface pad 1, the thickness of the fabric portion is at most 3.5 mm. Figure 7 Shown are diagrams of cloth portions 4 of different thicknesses.

[0060] The adhesive layer 5 is a connecting layer provided between the outer surface of the elastic part 3 and the first surface 41 of the fabric part 4, and is used to connect the elastic part 3 and the fabric part 4. The adhesive layer 5 can be glue or double-sided tape, and several factors need to be considered for the material selection of the adhesive layer 5: 1) adhesive strength, 2) material properties, 3) appearance, and 4) environmental protection.

[0061] 1) The bonding strength is to ensure that the connection between the elastic part 3 and the fabric part 4 is strong enough, and to ensure that in the absence of external force, the bonding force provided by the bonding layer 5 to the fabric part 4 is greater than the gravity of the fabric part 4 itself, and that the fabric part 4 will not fall off due to movement during sleep, and will not produce wrinkles to cause air leakage; at the same time, the bonding strength cannot be too strong to avoid being unfriendly to some users or easily damaging the material during disassembly.

[0062] 2) Material properties include whether the material of the adhesive layer 5 is a biocompatible material, whether it can be connected to the materials of the elastic part 3 and the fabric part 4, and whether it can penetrate the fabric part 4; the patient interface pad 1 is a product that contacts the human body, so it is necessary to confirm that the material of the adhesive layer is harmless to the human body and complies with local regulations, such as ISO 10993 regulations; since the materials of the elastic part 3 and the fabric part 4 are quite different, for example, the common glue or double-sided tape in the market is used to bond paper, wood, plastic, and metal, it is necessary to consider that the material of the adhesive layer 5 can be connected to both at the same time and will not change the chemical or physical properties of the two. At the same time, after the adhesive layer 5 in the flowing state is fixed, it should not have a harderness higher than that of the elastic part 3 to avoid applying pressure to the user's face; at the same time, it should be noted that when the initial form of the adhesive layer 5 is in a flowing state, it is necessary to consider whether the adhesive layer 5 will penetrate the fabric part 4. If it penetrates into the second surface 42 of the fabric, it will affect the properties of the fabric and make the user feel stiff and uncomfortable.

[0063] 3) Appearance has two aspects. On the one hand, the color of the adhesive layer 5 cannot be too strange, or a color that makes the user feel that the product has defects. At present, some glues will whiten (turn white after drying, leaving white marks) if there is insufficient ventilation or other operating problems during use. It is necessary to avoid these marks affecting the final appearance of the patient interface pad 1, and there should be no irritating odor to disturb the user. On the other hand, when the fabric part 4 and the elastic part 3 are disassembled, it is necessary to consider whether the adhesive layer 5 will remain on a certain component or cause the appearance of the product to be affected.

[0064] 4) Environmental protection is considered from two aspects. On the one hand, the service life of the adhesive layer 5 is to determine how many times it can be repeatedly cleaned and disassembled before losing the adhesive strength. On the other hand, environmental considerations are considered, and an environmentally friendly adhesive layer 3 is preferred. Therefore, the choice of adhesive layer is crucial, and you can choose glue or double-sided tape from brands such as 3M, Loctite, and UHU.

[0065] In summary, the selection of the adhesive layer 5 is crucial. In this embodiment, the adhesive layer 5 is glue or double-sided tape, and the thickness is 0.01-0.3 mm. More specifically, the adhesive layer 5 is peelable glue or double-sided tape.

[0066] The connection between the elastic part 3 and the fabric part 4 through the adhesive layer 5 is detachable. The detachable connection between the fabric part 4 and the elastic part 3 allows the user to arbitrarily choose to use the fabric part 4 or not to use the fabric part 4. After the fabric part is removed, a conventional patient interface pad without fabric can be obtained, which not only provides an additional choice but also prolongs the service life of the patient interface pad. In other embodiments, the connection between the elastic part 3 and the fabric part 4 through the adhesive layer 5 is non-detachable, for example, hot melt adhesive, silicone adhesive, or permanent glue is used as the adhesive layer 5. When the fabric part 4 is fitted with the elastic part 3, the curvature of the first surface 41 of the fabric part 4 fits the curvature of the elastic part 3. The fabric portion 4 is elastic, and when connected to the elastic portion 3, it should be unstretched (i.e., the fabric portion 4 is relaxed, and there is no external force pulling to cause deformation), and cover the outer surface of the elastic portion 3. Since the deformation capacity of the fabric portion 4 is greater than that of the elastic portion 3, the fabric portion 4 can conform to the deformation of the elastic portion 3 and fit the shape of the elastic portion 3, that is, when subjected to pressure, the fabric portion 4 conforms to the change in the curvature of the elastic portion 3. In another embodiment, the fabric portion 4 may be partially stretched to cover the outer surface of the elastic portion 3. It should be noted that the fabric portion 4 should cover the contact area of ​​the patient interface pad 1, that is, the inner edge 43 is less than or equal to the fourth opening 32. In order to ensure that the opening of the inner edge 43 of the fabric portion 4 can allow the user's mouth and nose to pass through, the distance between the point on the inner edge 43 on the same side of the same straight line and the point on the fourth opening 32 projected to the plane YOZ is at most 20 mm. However, the outer edge 44 can be of any size, such as Figure 1 and Figure 6 As shown, the outer edge 44 may only cover the outermost projection of the elastic part 3 in the X-axis direction, or may completely cover the elastic part 3, or may even exceed the elastic part 3 to cover the rigid part 2. Since the wall thickness of the elastic part 3 is not uniform, and the elastic part 3 and the fabric part 4 both have certain elasticity and deformation capabilities, Fig.10 As shown, when the same pressure (eg, 5N) is applied to different points of the fabric portion 4 in the X-axis direction, the displacement distances (x) of different points on the second surface 42 of the fabric portion 4 are different.

[0067] Example 2

[0068] The patient interface pad with cloth in this embodiment is configured to supply pressurized breathing gas to the nasal and oral airways of the user, and includes: a rigid part 2, an elastic part 3, and a cloth part 4. The patient interface pad 1 provided in this embodiment is different from the patient interface pad in Example 1 in that the patient interface pad 1 does not include an adhesive layer 5. In this embodiment, the first surface 41 of the cloth part 4 and the outer surface of the elastic part 3 are directly connected and non-detachable, and the direct connection methods include silicone adhesive, hot pressing, and molding. The non-detachable direct connection between the elastic part 3 and the cloth part 4 has the following advantages: first, the non-detachable connection means that the patient interface pad 1 will not slide and fall off even if it moves during sleep; second, the non-detachable direct connection reduces the user's installation process and reduces the probability of air leakage caused by wrinkles in the cloth part 4 due to improper installation or inaccurate positioning by the user; and removing the adhesive layer 5 can reduce costs.

[0069] Example 3

[0070] The patient interface pad with cloth in this embodiment is configured to supply pressurized breathing gas to the nasal and oral airways of the user, and includes a rigid portion 2, an elastic portion 3, a cloth portion 4, and an adhesive layer 5. The patient interface pad 1 provided in this embodiment is different from the patient interface pad in Example 1 in that the cloth portion 4 covers the range of the elastic portion 3. Fig.13 As shown, in this embodiment, the fabric part 4 is cut into a ring profile by laser, punching, and ultrasound, wherein the inner edge 43 is in a triangular, teardrop shape. The elastic part 3 has a tab 33 for fitting the nasal side wall in the nasal side area 12, and the inner edge 43 is larger than the fourth opening 32 of the elastic part 3. At this time, the elastic part 3 and the fabric part 4 are configured to seal the user's face together. Since the air permeability of the elastic part 3 is much lower than that of the fabric part 4, the elastic part 3 and the fabric part 4 can seal the user's face together to increase the airtight effect of the patient interface pad 1, and the fabric part 4 fits the face to increase comfort. In order to give the user a better use experience and ensure that most of the fabric part 4 fits the face, the width of the fabric part 4 is at least 10 mm, and the surface area of ​​the second surface 42 of the fabric part 4 is at least 3.5% of the outer surface area of ​​the elastic part 3.

[0071] There are several variations of the form in which the elastic part 3 and the fabric part 4 seal the user's face together: one is that the inner edge 43 is larger than the fourth opening 32 in a whole circle, and the outer edge 44 is larger than or equal to the outermost projection of the elastic part 3 in the X-axis direction. In this case, the edge of the fourth opening 32 of the elastic part 3 and the fabric part 4 contact the face together; the other is that the inner edge 43 is larger than the fourth opening 32 in the nose bridge area 11 and the nose side area 12, and is smaller than or equal to the fourth opening 32 in the cheek area 13 or the chin area 14, and the outer edge 44 is larger than or equal to the elastic part 3 at The outermost projection in the X-axis direction, at this time, the tab 33 of the elastic part 3 and the fabric part 4 contact the face together. The reason for this design is that the height difference between the nose and the face is greater, and the air tightness of the elastic part 3 is better, so the elastic part 3 is better than the fabric part 4 in sealing the nose bridge area 11 and the nose side area 12; thirdly, the inner edge 43 is less than or equal to the fourth opening 32, and the outer edge 44 is less than the outermost projection of the elastic part 3 in the X-axis direction, at this time, the fabric part 4 and the elastic part 3 beyond the fabric part 4 contact the face. Here are a few possible situations, which can be the superposition of the above deformations or any other possibilities.

[0072] There is another implementation form of this embodiment, that is, a patient interface pad with cloth without adhesive layer 5, configured to supply pressurized breathing gas to the nasal airway and oral airway of the user, comprising a rigid part 2, an elastic part 3, and a cloth part 4. The first surface 41 of the cloth part 4 is in direct contact with the outer surface of the elastic part 3, the cloth part 4 has a roughly annular contour, the inner edge 43 is larger than the fourth opening 32, and the tab 33 of the elastic part 3 and the cloth part 4 jointly seal the user's face.

[0073] Example 4

[0074] The patient interface pad with cloth in this embodiment is configured to supply pressurized breathing gas to the nasal and oral airways of the user, and includes a rigid portion 2, an elastic portion 3, a cloth portion 4, and an adhesive layer 5. The patient interface pad 1 provided in this embodiment is different from the patient interface pad in Example 1 in that the number of layers of the cloth portion 4 is greater than that of the patient interface pad 1 in Example 1. Fig.12As shown, the fabric part 4 in this embodiment is multi-layered, and different or the same textile materials are superimposed. The combination of the multi-layer textile materials can be pressing, sewing, thermoplastic compounding, hot melt compounding, or film compounding. However, too thick fabric stacking is prone to displacement and leakage, so in order to ensure the sealing effect of the patient interface pad, the thickness of the fabric part does not exceed 3.5mm; but it cannot be too thin, otherwise the user can feel the elastic part 3, and the soft and comfortable characteristics of the fabric part 4 are lost, so the thickness of the fabric part 4 is at least 0.6mm. Multi-layer textile materials, each layer can be a superposition of the same size, thickness, and material, or different sizes, thicknesses, and materials can be used to achieve different functions. For example, the bottom layer (the layer close to the elastic part 3) uses a larger range of textile materials that can better fit the adhesive layer, and then the textile materials with the required functions, such as anti-static fabrics, are superimposed upwards, so that users can avoid the generation of static electricity when using it, providing a better experience. In some embodiments, considering that the adhesive layer 5 may have a certain degree of permeability, a layer of the fabric portion 4 adjacent to the elastic portion 3 is made of a low-permeability material, such as nylon-coated fabric, polyurethane-coated fabric, or high-density polyethylene (HDPE) fabric, which prevents the adhesive layer 5 from penetrating into the second surface 42. In this embodiment, the inner edge 43 is smaller than or equal to the fourth opening 32. In another embodiment, the inner edge 43 is larger than the fourth opening 32.

[0075] There is another implementation form of this embodiment, that is, a patient interface pad with cloth without adhesive layer 5, configured to supply pressurized breathing gas to the nasal airway and oral airway of the user, comprising a rigid part 2, an elastic part 3, and a cloth part 4. The cloth part 4 is multi-layered, and the first surface 41 of the cloth part 4 is in direct contact with the outer surface of the elastic part 3.

[0076] Example 5

[0077] The patient interface pad with cloth in this embodiment is configured to supply pressurized breathing gas to the nasal and oral airways of the user, and includes a rigid portion 2, an elastic portion 3, a cloth portion 4, and an adhesive layer 5. The patient interface pad 1 provided in this embodiment is different from the patient interface pad in Example 1 in that the cloth portion 4 is a discontinuous shape. Fig.14As shown, the fabric part 4 in this embodiment is not annular, and is arranged between the lower lip area and the nose bridge area of ​​the user to form a sealing area. There are several variations: one is to cover only the nose bridge area 11, that is, the fabric part 4 has a second surface 42 away from the elastic part 3 and seals at least a part of the user's nose bridge, which is used to reduce the pressure on the nose bridge and reduce red marks; the second is to cover only the chin area 14, that is, the second surface 42 at least contacts the user's chin; the third is two separate pieces of fabric parts 4, which contact the cheek area 13 respectively, that is, the second surface 42 at least contacts the user's cheek, to reduce the squeezing feeling on the cheekbones of the face; there may also be other forms, such as the fabric part 4 does not cover the nose bridge area 11 with a significant height difference but covers other flat areas. For comfort reasons, the area covered by the fabric portion 4 on the elastic portion 3 cannot be too small, otherwise the elastic portion 3 will contact the face and lose the purpose of adding the fabric portion 4. Therefore, the surface area of ​​the second surface 42 is at least 3.5% of the outer surface area of ​​the elastic portion 3. At this time, the fabric portion 4 is placed in the nose bridge area 11, the second surface 42 contacts the user's nose bridge, and the outer edge 44 is close to the largest outer circle projection of the elastic portion 3 in the X-axis direction. Fig.14 There is another implementation form of this embodiment, that is, a patient interface pad with cloth without adhesive layer 5, configured to supply pressurized breathing gas to the nasal airway and oral airway of the user, comprising a rigid part 2, an elastic part 3, and a cloth part 4. The cloth part 4 is discontinuous, and the first surface 41 of the cloth part 4 is in direct contact with the outer surface of the elastic part 3.

[0078] The breathing mask with good sealing performance of the utility model can at least achieve the following beneficial effects:

[0079] 1) The utility model combines the fabric part 4 with a complete patient interface pad to produce a patient interface pad 1 with fabric. By adjusting the shape and contour of the fabric part, the fabric part 4 can contact the user's face alone or seal the user's face together with the elastic part 3. In addition, the connection between the fabric part and the elastic part is a detachable connection, which is more convenient for manufacturers to produce and stock. Users can choose to install the fabric or disassemble it according to their needs. In addition, the patient interface pad of the utility model without fabric is itself a complete product. Through post-processing to produce modular patient interface pads with different experiences, it is more convenient for manufacturers to stock and store, reducing storage costs. At the same time, it also reduces the production of a variety of patient interface pads, reduces energy consumption, reduces carbon dioxide emissions, and contributes to maintaining the concentration of greenhouse gases in the atmosphere from rising.

[0080] 2) Compared with the patient interface pad that uses silicone to seal the face in the prior art, it has the advantages of absorbing water and sweat and can also absorb some grease, making the user feel more refreshed when wearing it, avoiding skin sensitivity problems, and reducing the displacement of the patient interface pad 1. At the same time, the fabric part 4 is more skin-friendly than the elastic part 3, making the user more comfortable, reducing the depression of receiving treatment, easing the user's mentality, and bringing better compliance. In addition, the addition of the fabric part 4 reduces the contact between the elastic part 3 of the patient interface pad 1 and the face, extending the service life of the patient interface pad.

[0081] 3) Compared with the existing silicone patient interface pad, the utility model adopts a cloth part 4. For some groups, such as people with beards or depressions on the face after trauma, the cloth is softer 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 1; and the soft cloth can better conform to the facial contour, and under the compression of the face, fill the gaps around the beard to achieve better sealing.

[0082] 4) Compared with the mask liner or mask pad of the prior art, the patient interface pad 1 of the utility model can have the advantages of both, and can also fix the fabric part 4 on the elastic part 3 to better fit the human face. And the fabric part 4 and the elastic part 3 are fixed to avoid wrinkles in the fabric part 4, which causes air leakage and reduces the treatment effect. The fabric part 4 is attached to the elastic part 3 and belongs to the whole patient interface pad 1, so the use steps are simpler and the user is more convenient to use.

[0083] 5) Compared with the foam interface pad in the prior art, the present invention has a simple process, a low defect rate and reduced costs. The research and development process and production process of the foam interface pad are difficult, and it is necessary to find raw materials with suitable hardness and softness; it is also necessary to produce and develop a new silicone as a support for the foam part; and then test to determine the height, shape and contour of the foam part and the silicone. Secondly, in production, the molding cycle and production cycle of the foam material are longer than those of plastic and silicone. The patient interface pad 1 of the present invention can choose the comfortable fabric part 4 commonly seen in daily life, and only cut it to achieve the predetermined shape, and then connect it to the elastic part 3 to form it. In comparison, the process of the present invention is simpler, saving research and development costs and production costs, and there are fewer processes, and fewer processes also mean lower error rates and lower product defect rates.

[0084] 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.

[0085] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A patient interface cushion with a cloth material, configured to supply pressurized breathing gas to the nasal and oral airways of a user, characterized in that: include: The rigid part is configured to support the elastic part, wherein one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening communicating with the inner cavity of the elastic part; an elastic portion, configured to be connected to the rigid portion and to provide an attachment surface for the fabric portion, the elastic portion having a third opening adjacent to the rigid portion and connected to the second opening, and a fourth opening away from the rigid portion for allowing a user's mouth and nose to enter the inner cavity of the elastic portion; and a fabric portion configured to surround the nose and mouth of a user and form a sealing area between the lower lip area and the nose bridge area, having a first surface close to and partially connected to the outer surface of the elastic portion, and a second surface away from the elastic portion and sealing at least a portion of the nose bridge of the user; The fabric portion has an inner edge adjacent to the fourth opening and an outer edge away from the fourth opening, the inner edge is smaller than or equal to the fourth opening of the elastic portion, and the inner edge of the fabric portion has an overhanging portion.

2. The patient interface pad with cloth according to claim 1, characterized in that The rigid part is made of a first material, the elastic part is made of a second material, and the fabric part is made of a textile material, wherein the first material is polycarbonate, and the second material is silicone with a hardness in the range of Shore 30A-70A.

3. The patient interface pad with cloth according to claim 1, characterized in that The first surface of the fabric part and the outer surface of the elastic part are directly connected and cannot be detached. The direct connection methods include silicone adhesive, hot pressing, and molding.

4. The patient interface pad with cloth according to claim 1, characterized in that The outer edge of the fabric portion is larger than the outermost projection of the elastic portion in the X-axis direction.

5. A patient interface cushion with cloth, configured to supply pressurized breathing gas to the nasal and oral airways of a user, characterized in that: include: The rigid part is configured to support the elastic part, wherein one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening communicating with the inner cavity of the elastic part; an elastic portion, configured to be connected to the rigid portion and to provide an attachment surface for the fabric portion, the elastic portion having a third opening adjacent to the rigid portion and connected to the second opening, and a fourth opening away from the rigid portion for allowing a user's mouth and nose to enter the inner cavity of the elastic portion; a fabric portion configured to form a sealing area between the user's lower lip region and the nose bridge region, having a first surface adjacent to the outer surface of the elastic portion, a second surface away from the elastic portion and sealing at least a portion of the user's face, an inner edge adjacent to the fourth opening and an outer edge away from the fourth opening; as well as an adhesive layer, disposed between the outer surface of the elastic portion and the first surface of the fabric portion, for connecting the elastic portion and the fabric portion; wherein the elastic portion has a tab in the nose side area for fitting the nose side wall, the inner edge is larger than the fourth opening of the elastic portion, and the elastic portion and the fabric portion are configured to seal the user's face together; The fabric portion is elastic and changes in accordance with the curvature of the elastic portion when subjected to pressure. When the same pressure is applied to different points of the fabric portion in the X-axis direction, the displacement distances of different points on the second surface of the fabric portion are different.

6. The patient interface pad with cloth according to claim 5, characterized in that The adhesive layer is glue or double-sided tape, and has a thickness of 0.01-0.3 mm.

7. The patient interface pad with cloth according to claim 5, characterized in that The surface area of ​​the second surface of the fabric portion is at least 3.5% of the outer surface area of ​​the elastic portion.

8. The patient interface pad with cloth according to claim 5, characterized in that The cloth portion is single-layered and has a uniform thickness.

9. A patient interface cushion having a cloth material, configured to supply pressurized breathing gas to the nasal and oral airways of a user, characterized in that: include: The rigid part is configured to support the elastic part, wherein one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening communicating with the inner cavity of the elastic part; an elastic portion, configured to be connected to the rigid portion and to provide an attachment surface for the fabric portion, the elastic portion having a third opening adjacent to the rigid portion and connected to the second opening, and a fourth opening away from the rigid portion for allowing a user's mouth and nose to enter the inner cavity of the elastic portion; a fabric portion, configured to form a sealing area between the user's lower lip area and the nose bridge area, having a first surface adjacent to the outer surface of the elastic portion, and a second surface away from the elastic portion and sealing at least a portion of the user's face, the fabric portion having an inner edge adjacent to the fourth opening and an outer edge away from the fourth opening; as well as an adhesive layer, disposed between the outer surface of the elastic portion and the first surface of the fabric portion, for connecting the elastic portion and the fabric portion; The curvature of the first surface of the fabric part fits the curvature of the elastic part, and the fabric part is elastic. When subjected to pressure, the fabric part changes in accordance with the curvature of the elastic part, and the second surface of the fabric part at least contacts a part of the nose bridge of the user; The elastic part has a tab in the nose side area for fitting the nose side wall, the inner edge is larger than the fourth opening of the elastic part, and the elastic part and the cloth part are configured to seal the user's face together.

10. The patient interface pad with cloth according to claim 9, characterized in that The connection between the elastic part and the fabric part through the adhesive layer is detachable, and the adhesive layer is a peelable glue or a double-sided adhesive.

11. The patient interface pad with cloth according to claim 10, characterized in that The fabric portion is multi-layered, and a layer adjacent to the elastic portion is made of a low-permeability material that prevents the adhesive layer from penetrating to the second surface.

12. The patient interface pad with cloth according to claim 9, characterized in that The cloth portion is cut into a ring-shaped contour by laser, punching, or ultrasonic wave, wherein the inner edge shape is a triangle or a teardrop shape.

13. A patient interface cushion having a cloth material, configured to supply pressurized breathing gas to the nasal and oral airways of a user, characterized in that: include: The rigid part is configured to support the elastic part, wherein one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening communicating with the inner cavity of the elastic part; an elastic portion, configured to be connected to the rigid portion and to provide an attachment surface for the fabric portion, the elastic portion having a third opening adjacent to the rigid portion and connected to the second opening, and a fourth opening away from the rigid portion for allowing a user's mouth and nose to enter the inner cavity of the elastic portion; a cloth portion configured to surround a user's mouth and nose and form a sealing area between a lower lip region and a nose bridge region, having a first surface adjacent to an outer surface of the elastic portion, a second surface away from the elastic portion and sealing at least a portion of the user's face, the cloth portion having an inner edge adjacent to the fourth opening and an outer edge away from the fourth opening; Wherein, the fabric portion has one or more of the following characteristics: a. The surface area of ​​the second surface is at least 3.5% of the surface area of ​​the elastic portion; b. According to AATCC 79 test method, the water absorption time is less than 30 seconds; c. The Ra value of the second surface is in the range of 0.2-10 microns; d. Thickness is at least 0.6mm.

14. The patient interface pad with cloth according to claim 13, characterized in that The air permeability of the fabric portion is tested according to ASTM D737 test method and is 1-30 CFM.

15. The patient interface pad with cloth according to claim 13, characterized in that The material of the cloth part is one of cotton fiber, flax, polyester fiber, elastic fiber, nylon fiber, acrylic fiber, vinylon fiber and nylon fiber.

16. The patient interface pad with cloth according to claim 13, characterized in that The diameter of the first opening is 10-45 mm, the first opening is smaller than the second opening, and the inner edge of the cloth portion is smaller than or equal to the fourth opening.

17. A patient interface cushion having a cloth material, configured to supply pressurized breathing gas to the nasal and oral airways of a user, characterized in that: include: The rigid part is configured to support the elastic part, wherein one end of the rigid part is provided with a first opening for receiving the breathing gas of the continuous positive airway pressure device, and the other end is provided with a second opening communicating with the inner cavity of the elastic part; an elastic portion, configured to be connected to the rigid portion and to provide an attachment surface for the fabric portion, the elastic portion having a third opening adjacent to the rigid portion and connected to the second opening, and a fourth opening away from the rigid portion for allowing a user's mouth and nose to enter the inner cavity of the elastic portion; a fabric portion, configured to form a sealing area between the lower lip area and the nose bridge area of ​​the user, having a first surface adjacent to the outer surface of the elastic portion, a second surface away from the elastic portion and sealing at least a portion of the nose bridge of the user, the fabric portion having an inner edge adjacent to the fourth opening and an outer edge away from the fourth opening; as well as an adhesive layer, disposed between the outer surface of the elastic portion and the first surface of the fabric portion, for connecting the elastic portion and the fabric portion; The connection between the elastic part and the fabric part through the adhesive layer is detachable, and the adhesive force provided by the adhesive layer to the fabric part is greater than the weight of the fabric part itself.

18. The patient interface pad with cloth according to claim 17, characterized in that The thickness of the fabric portion is at least 0.6 mm and at most 3.5 mm.

19. The patient interface pad with cloth according to claim 17, characterized in that The width of the fabric portion is at least 10 mm.

20. The patient interface pad with cloth according to claim 17, characterized in that The fabric portion is a discontinuous shape.

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