Liner system for breathing patient interface and breathing patient interface

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, and discloses a breathing patient interface liner system and a breathing patient interface wherein the liner system comprises a housing member and a sealing member, the sealing member comprises a nose sealing area and a mouth sealing area located below the nose sealing area, the nose sealing area comprises a nose corner supporting area and an under-nose sealing area above a nose opening, an elastic deformation part is arranged on the periphery of the under-nose sealing area, and the mouth sealing area comprises an upper lip sealing area, a lower lip sealing area and a side face sealing area. The nose angle supporting area is located between the side face sealing area and the under-nose sealing area, the inner side face of the nose angle supporting area is provided with an elastic supporting structure protruding out of the inner side face of the sealing component so as to increase the structural strength of the nose angle supporting area, on one hand, the structural strength of the nose angle supporting area is improved, and therefore the air tightness between the liner system and the face of a patient is improved; and on the other hand, the production difficulty of the liner system is reduced, and the production cost of the liner system is further reduced.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, specifically relating to a padding system for a respiratory patient interface and a respiratory patient interface. Background Technology

[0002] A respiratory patient interface is a medical device that covers a patient's mouth and nose to deliver oxygen or a gas mixture into the patient's airway, increasing the patient's oxygen intake and gas pressure in the airway to improve the patient's respiratory function.

[0003] Currently, respiratory patient interfaces generally include a support, a padding system located inside the support, and a connector located outside the support. The connector is used to connect the breathing tubing to the padding system. The padding system is typically a face mask, which is large and covers the entire face. This results in a heavy padding system and pressure on the patient's nasal bridge, affecting the user experience. Therefore, nasal masks were developed. Nasal masks only cover the patient's nose and mouth and avoid pressure on the nasal bridge, thus reducing the weight of the padding system and preventing pressure on the nasal bridge, thereby improving the user experience.

[0004] The nasal mask has a nasal corner area corresponding to the patient's nasal corner. In order to increase the airtightness between the nasal mask and the patient's face, the nasal mask needs to be equipped with a support structure to support the nasal corner area. However, the current support structure is usually a recessed structure at the nasal corner, which results in a double-layer structure. This increases the difficulty of molding the nasal mask, increases the production cost of the nasal mask, and also results in a weaker support structure and a poorer support effect on the nasal corner area, thus affecting the airtightness between the nasal mask and the patient's face. Utility Model Content

[0005] This application provides a liner system for a respiratory patient interface to reduce the manufacturing difficulty and cost of the liner system and improve the airtightness between the liner system and the patient's face.

[0006] The technical solution adopted in this application is as follows:

[0007] A padding system for a respiratory patient interface, the respiratory patient interface being used to seal and deliver an airflow to the inlet of a respiratory patient's airway under a continuous positive pressure relative to ambient air pressure, the padding system comprising:

[0008] A housing component and a sealing component that together with the housing component forms a breathing cavity;

[0009] The housing component is made of a relatively rigid material and includes an annular opening and a mating perimeter. The annular opening is configured to allow breathing gas to flow into the breathing chamber during use. The housing component is connected and adapted to the sealing component at the mating perimeter to provide relative support to the sealing component during use.

[0010] The sealing member is made of a relatively flexible material and forms a seal along the facial contour of the breathing patient during use. The sealing member is configured to be positioned completely below the bridge of the nose of the breathing patient's face and to expose the bridge of the nose. The sealing member includes a nasal sealing area and an oral sealing area located below the nasal sealing area. The nasal sealing area includes at least one nasal opening. The oral sealing area includes at least one oral opening. The nasal sealing area includes a nasal corner support area and a subnasal sealing area above the nasal opening. The subnasal sealing area has an elastic deformation portion around its periphery. The oral sealing area includes an upper lip sealing area, a lower lip sealing area, and a side sealing area.

[0011] The nasal corner support area is located between the side sealing area and the subnasal sealing area. The inner side of the nasal corner support area is provided with an elastic support structure that protrudes from the inner side of the sealing member to increase the structural strength of the nasal corner support area.

[0012] By adopting the above technical solution, the periphery of the nasal sealing area is provided with an elastic deformation portion, which can elastically support the nasal sealing area. This allows the nasal sealing area to elastically deform in the direction of approaching or moving away from the patient's nose, ensuring the contact area between the nasal sealing area and the patient, thereby ensuring the airtightness between the nasal sealing area and the patient's nose. At the same time, it can also reduce the pressure exerted by the nasal sealing area on the patient's nose, thereby improving the patient's wearing comfort. Since the inner side of the nasal corner support area is provided with an elastic support structure that protrudes from the inner side of the sealing member, on the one hand, compared with the concave structure in the prior art, the structural strength of the nasal corner support area is improved, ensuring the contact area between the nasal corner support area and the patient, thereby improving the airtightness between the padding system and the patient's face. On the other hand, it reduces the production difficulty of the padding system, increases the yield of the padding system, and thus reduces the production cost of the padding system.

[0013] Optionally, the width 'a' of the elastic support structure satisfies: 10mm ≤ a ≤ 30mm; and the thickness 'b' at the elastic support structure satisfies: 1.5mm ≤ b ≤ 5mm.

[0014] If the width 'a' of the elastic support structure is less than 10mm, it will affect the support effect of the elastic support structure on the nasal corner support area, thereby affecting the contact area between the nasal corner support area and the patient, thus affecting the airtightness between the padding system and the patient, and eventually causing air leakage. If the width 'a' of the elastic support structure is greater than 30mm, it will cause the nasal corner support area to compress the patient, thereby affecting the patient's user experience. At the same time, it will increase the amount of raw materials used in the elastic support structure, thereby increasing the production cost of the padding system.

[0015] If the thickness b at the elastic support structure is less than 1.5mm, it will affect the support effect of the elastic support structure on the nasal corner support area, which in turn affects the contact area between the nasal corner support area and the patient, resulting in air leakage. If the thickness b at the elastic support structure is greater than 5mm, it will cause the nasal corner support area to compress the patient, thus affecting the patient's user experience. It will also increase the amount of raw materials used in the elastic support structure, thereby increasing the production cost of the padding system.

[0016] In summary, setting the width 'a' of the elastic support structure to 10mm ≤ a ≤ 30mm and the thickness 'b' of the elastic support structure to 1.5mm ≤ b ≤ 5mm ensures airtightness between the padding system and the patient's face, preventing air leakage and guaranteeing the treatment effect. It also avoids pressure on the patient from the nasal corner support area, improving the patient's experience and reducing the production cost of the padding system to some extent.

[0017] Optionally, the thickness of the side sealing area is less than the thickness of the elastic support structure.

[0018] By adopting the above technical solution, since the thickness of the side sealing area is less than that of the elastic support structure, the side sealing area is more prone to elastic deformation than the nasal corner support area, so as to ensure the contact area between the side sealing area and the patient's face, thereby improving the airtightness between the side sealing area and the patient's face. In addition, it also makes the side sealing area softer, thereby improving the patient's wearing comfort.

[0019] Optionally, the sealing member has a connecting end connected to the housing member and a sealing end opposite to the connecting end, and the thickness of the sealing member gradually decreases from the connecting end to the sealing end.

[0020] By adopting the above technical solution, since the thickness of the sealing component gradually decreases from the connecting end to the sealing end, and the connecting end is connected to the shell component, on the one hand, the connection strength between the sealing component and the shell component is increased, thereby increasing the stability of the padding system, ensuring the service life of the padding system, and further improving the user experience. On the other hand, it makes the sealing end more flexible, so that the sealing end is more likely to undergo elastic deformation, thereby improving the patient's wearing comfort and avoiding the phenomenon of facial acne caused by wearing the padding system.

[0021] Optionally, the top of the nasal sealing area has a recess for accommodating the patient's nasal septum.

[0022] By adopting the above technical solution, since the top of the nasal sealing area has a recessed part, and the recessed part is used to accommodate the patient's nasal septum, the contact area between the padding system and the patient's nose is guaranteed, thereby increasing the airtightness between the padding system and the patient. At the same time, it reduces the deformation of the nasal sealing area after the padding system is worn by the user, so as to avoid the phenomenon of pressure on the patient due to large deformation of the nasal sealing area, and further improve the patient's user experience.

[0023] Optionally, the thickness of the subnasal sealing area is equal to the thickness of the upper lip sealing area and the thickness of the lower lip sealing area, and both are less than the thickness of the side sealing area.

[0024] By adopting the above technical solution, since the thickness of the subnasal sealing area is equal to the thickness of the upper lip sealing area and the thickness of the lower lip sealing area, and both are less than the thickness of the side sealing area, on the one hand, the production difficulty of the sealing components is reduced, thereby increasing the yield of the sealing components and reducing the production cost of the sealing components. At the same time, the subnasal sealing area, upper lip sealing area, and lower lip sealing area are made softer, thereby improving the wearing comfort of the patient. On the other hand, the structural strength of the side sealing area is increased to ensure the contact area between the side sealing area and the patient's face, thereby ensuring the airtightness between the padding system and the patient.

[0025] Optionally, the elastic deformable portion includes one or more folded sections, which are capable of providing a degree of compression or movement of the padding system in the subnasal sealing area.

[0026] By adopting the above technical solution, since the elastic deformation part includes one or more folded sections, the padding system can be compressed or moved to a certain extent in the subnasal sealing area to ensure the contact area between the subnasal sealing area and the patient, thereby ensuring the airtightness between the padding system and the patient. At the same time, it can also reduce the pressure on the patient from the subnasal sealing area to reduce the pressure on the patient, thereby further improving the patient's user experience.

[0027] Optionally, the folded segment includes a first wall and a second wall, with an included angle α between the first wall and the second wall, wherein the included angle α satisfies: 20°≤α≤80°.

[0028] By adopting the above technical solution, since the first wall and the second wall form an included angle α, and the included angle α satisfies: 20°≤α≤80°, on the one hand, the folding section ensures the support effect of the nasal sealing area, so as to ensure the contact area between the nasal sealing area and the patient, and to ensure the airtightness between the padding system and the patient, thereby ensuring the treatment effect on the patient. On the other hand, it ensures the elastic deformation effect of the nasal sealing area, so as to reduce the force required when the padding system deforms in the nasal sealing area, thereby reducing the pressure rod felt by the patient and improving the patient's wearing experience.

[0029] Optionally, the first wall and the second wall form a deformation space with openings on the side, wherein the opening height c of the deformation space satisfies: 2mm≤c≤15mm.

[0030] By adopting the above technical solution, since the height c of the deformation opening satisfies: 2mm≤c≤15mm, on the one hand, the deformation range of the padding system in the nasal sealing area is guaranteed, thereby improving the adjustment range of the padding system and making it suitable for a variety of patients, thus increasing the flexibility of the padding system, and on the other hand, reducing the production difficulty of the padding system.

[0031] Optionally, the first wall is located above the second wall, and the width of the first wall is smaller than the width of the second wall.

[0032] By adopting the above technical solution, since the first wall is located above the second wall and the width of the first wall is smaller than the width of the second wall, the outer contour of the sealing member transitions smoothly at the fold section, thereby ensuring the outer contour of the sealing member, which increases the aesthetics of the gasket system and also reduces the production difficulty of the gasket system.

[0033] This application also discloses a respiratory patient interface to reduce the production cost of the respiratory patient interface and improve the airtightness between the respiratory patient interface and the patient's face.

[0034] A respiratory patient interface includes a support, a padding system connected to the support, a headband connected to the support, and a connector connected to the support and for communicating with the padding system, the padding system being selected from the above-described padding systems.

[0035] By adopting the above technical solution, the respiratory patient interface in this application uses the aforementioned padding system, thereby reducing the production difficulty of the respiratory patient interface, increasing the yield rate of the respiratory patient interface, reducing the production cost of the respiratory patient interface, and ensuring the contact area between the padding system and the patient, thereby improving the airtightness between the respiratory patient interface and the patient's face.

[0036] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0037] 1. The padding system of this application includes a shell component and a sealing component. The sealing component includes a nasal sealing area and an oral sealing area located below the nasal sealing area. The nasal sealing area includes a nasal corner support area and a subnasal sealing area above the nasal opening. The subnasal sealing area is provided with an elastic deformation portion around its periphery. The oral sealing area includes an upper lip sealing area, a lower lip sealing area, and a lateral sealing area. The nasal corner support area is located between the lateral sealing area and the subnasal sealing area. The inner surface of the nasal corner support area is provided with an elastic support structure protruding from the inner surface of the sealing component to increase the structural strength at the nasal corner support area. On the one hand, this improves the structural strength of the nasal corner support area, thereby improving the airtightness between the padding system and the patient's face. On the other hand, it reduces the manufacturing difficulty of the padding system, increases the yield of the padding system, and thus reduces the production cost of the padding system.

[0038] 2. In this application, the width 'a' of the elastic support structure satisfies: 10mm≤a≤30mm; the thickness 'b' of the elastic support structure satisfies: 1.5mm≤b≤5mm. This ensures airtightness between the padding system and the patient's face to prevent air leakage and guarantee the treatment effect. It also avoids pressure on the patient from the nasal corner support area, thus improving the patient's experience and reducing the production cost of the padding system to some extent.

[0039] 3. In this application, the thickness of the side sealing area is less than the thickness of the elastic support structure, which makes the side sealing area more prone to elastic deformation than the nasal corner support area, so as to ensure the contact area between the side sealing area and the patient's face, thereby improving the airtightness between the side sealing area and the patient's face. In addition, it also makes the side sealing area softer, thereby improving the patient's wearing comfort. Attached Figure Description

[0040] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0041] Figure 1 This is a schematic diagram of the structure of the padding system described in one embodiment of this application;

[0042] Figure 2 This is a schematic diagram of the sealing member described in one embodiment of this application;

[0043] Figure 3 This is a cross-sectional view of the sealing member described in one embodiment of this application;

[0044] Figure 4 This is a schematic diagram of the sealing member described in one embodiment of this application from another perspective;

[0045] Figure 5 This is a cross-sectional view of another location of the sealing member described in one embodiment of this application;

[0046] Figure 6 This is a cross-sectional view of the sealing member at another location in one embodiment of this application;

[0047] Figure 7 This is a cross-sectional view of the sealing member according to one embodiment of this application, mainly showing the included angle α between the first wall and the second wall;

[0048] Figure 8 This is a cross-sectional view of the sealing member described in one embodiment of this application, mainly showing the opening height c of the deformation space;

[0049] Figure 9 This is a schematic diagram of the respiratory patient interface described in one embodiment of this application.

[0050] Figure label:

[0051] 1. Shell component; 2. Sealing component; 21. Nose opening; 22. Mouth opening; 23. Nose corner support area; 231. Elastic support structure; 24. Subnasal sealing area; 241. Recessed portion; 25. Elastic deformation portion; 251. Folded section; 252. First wall; 253. Second wall; 26. Upper lip sealing area; 27. Lower lip sealing area; 28. Side sealing area; 29. ​​Connecting end; 291. Sealing end; 3. Bracket; 4. Headband; 5. Connector; 6. Breathing tubing. Detailed Implementation

[0052] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0053] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0054] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0055] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0057] Reference Figures 1 to 8 A liner system for a respiratory patient interface is disclosed. The respiratory patient interface is used to seal and deliver airflow to the inlet of the respiratory patient's airway under a continuous positive pressure relative to the ambient air pressure. The liner system includes a housing component 1 and a sealing component 2 that forms a breathing cavity together with the housing component 1.

[0058] The housing component 1 is made of a relatively rigid material and includes an annular opening and a mating perimeter. The annular opening is configured to allow breathing gas to flow into the breathing chamber during use. The housing component 1 is connected and adapted to the sealing component 2 at the mating perimeter to provide relative support for the sealing component 2 during use.

[0059] The sealing member 2 is made of a relatively flexible material and forms a seal along the facial contour of the breathing patient during use. The sealing member 2 is configured to be positioned completely below the bridge of the nose of the breathing patient and expose the bridge of the nose. The sealing member 2 includes a nasal sealing area and an oral sealing area located below the nasal sealing area. The nasal sealing area includes at least one nasal opening 21, and the oral sealing area includes at least one oral opening 22. The nasal sealing area includes a nasal corner support area 23 and a subnasal sealing area 24 above the nasal opening 21. The subnasal sealing area 24 is provided with an elastic deformation portion 25 around its periphery. The oral sealing area includes an upper lip sealing area 26, a lower lip sealing area 27, and a side sealing area 28.

[0060] The nasal corner support area 23 is located between the side sealing area 28 and the subnasal sealing area 24. The inner side of the nasal corner support area 23 is provided with an elastic support structure 231 that protrudes from the inner side of the sealing member 2 to increase the structural strength of the nasal corner support area 23.

[0061] It should be noted that the above-mentioned "shell component 1 is made of a relatively rigid material" and "sealing component 2 is made of a relatively flexible material" means that the rigidity of the material used to make shell component 1 is greater than that of the material used to make sealing component 2, so as to ensure the supporting effect of shell component 1 on sealing component 2, thereby ensuring the airtightness between the padding system and the patient, and making sealing component 2 more flexible to improve the patient's wearing comfort.

[0062] Because the periphery of the nasal sealing area 24 is provided with an elastic deformation portion 25, the elastic deformation portion 25 can provide elastic support for the nasal sealing area, so that the nasal sealing area can elastically deform in the direction of approaching or moving away from the patient's nose, thereby ensuring the contact area between the nasal sealing area and the patient, thus ensuring the airtightness between the nasal sealing area and the patient's nose, and at the same time reducing the pressure exerted by the nasal sealing area on the patient's nose, thereby improving the patient's wearing comfort.

[0063] Because the inner side of the nasal corner support area 23 is provided with an elastic support structure 231 that protrudes from the inner side of the sealing member 2, on the one hand, compared with the recessed structure in the prior art, the structural strength of the nasal corner support area 23 is improved to ensure the contact area between the nasal corner support area 23 and the patient, thereby improving the airtightness between the padding system and the patient's face. On the other hand, it reduces the production difficulty of the padding system, increases the yield of the padding system, and thus reduces the production cost of the padding system.

[0064] It is understandable that the elastic support structure 231 is a block structure integrally formed on the sealing component 2, so as to ensure the strengthening effect of the elastic support structure 231 on the strength of the nasal corner support area 23, while increasing the connection strength between the elastic support structure 231 and the nasal corner support area 23 and reducing the production difficulty of the sealing component 2.

[0065] This application does not specify the connection method between the sealing member 2 and the shell member 1. The two can be integrally set by a two-color molding process or a part of the sealing member 2 can be covered by the shell member 1. The two can also be connected by bonding or other fixed connection methods, or even by a detachable connection method.

[0066] In addition, the shell component 1 can be made of transparent material or opaque material, and the sealing component 2 can be made of transparent or transparent frosted material.

[0067] In a preferred embodiment, refer to Figure 3 and Figure 5 The width a of the elastic support structure 231 satisfies: 10mm≤a≤30mm; the thickness b at the elastic support structure 231 satisfies: 1.5mm≤b≤5mm.

[0068] It should be noted that the "thickness b at the elastic support structure 231" mentioned in this application refers to the sum of the thicknesses of the nasal corner support area 23 and the elastic support structure 231.

[0069] According to experimental data, if the width 'a' of the elastic support structure 231 is less than 10 mm, it will affect the support effect of the elastic support structure 231 on the nasal corner support area 23, thereby affecting the contact area between the nasal corner support area 23 and the patient, thus affecting the airtightness between the padding system and the patient, and leading to air leakage. If the width 'a' of the elastic support structure 231 is greater than 30 mm, it will cause the nasal corner support area 23 to compress the patient, thereby affecting the patient's user experience. At the same time, it will also increase the amount of raw materials used in the elastic support structure 231, thereby increasing the production cost of the padding system.

[0070] If the thickness b at the elastic support structure 231 is less than 1.5 mm, it will affect the support effect of the elastic support structure 231 on the nasal corner support area 23, thereby affecting the contact area between the nasal corner support area 23 and the patient, resulting in air leakage. If the thickness b at the elastic support structure 231 is greater than 5 mm, it will cause the nasal corner support area 23 to compress the patient, thereby affecting the patient's user experience. It will also increase the amount of raw materials used in the elastic support structure 231, thereby increasing the production cost of the padding system.

[0071] In summary, setting the width a of the elastic support structure 231 to 10mm≤a≤30mm and the thickness b of the elastic support structure 231 to 1.5mm≤b≤5mm ensures airtightness between the padding system and the patient's face, preventing air leakage and guaranteeing the treatment effect. It also avoids pressure on the patient from the nasal corner support area 23, improving the patient's experience and reducing the production cost of the padding system to some extent.

[0072] In a preferred embodiment, refer to Figure 2 The thickness of the side sealing area 28 is less than the thickness of the elastic support structure 231, which makes the side sealing area 28 more prone to elastic deformation than the nasal corner support area 23, so as to ensure the contact area between the side sealing area 28 and the patient's face, thereby improving the airtightness between the side sealing area 28 and the patient's face. In addition, it also makes the side sealing area 28 softer, thereby improving the patient's wearing comfort.

[0073] In a preferred embodiment, refer to Figure 6 , Figure 7 and Figure 8 The sealing member 2 has a connecting end 29 connected to the housing member 1 and a sealing end 291 opposite to the connecting end 29. The thickness of the sealing member 2 gradually decreases from the connecting end 29 to the sealing end 291.

[0074] Understandably, the sealing end 291 is used to contact the patient's face.

[0075] Since the thickness of the sealing member 2 gradually decreases from the connecting end 29 to the sealing end 291, and the connecting end 29 is connected to the shell member 1, on the one hand, the connection strength between the sealing member 2 and the shell member 1 is increased, thereby increasing the stability of the padding system to ensure the service life of the padding system and further improving the user experience. On the other hand, it makes the sealing end 291 more flexible, so that the sealing end 291 is more likely to undergo elastic deformation, thereby improving the patient's wearing comfort and avoiding the phenomenon of facial acne caused by wearing the padding system. At the same time, it also reduces the production difficulty of the sealing member 2 and improves the production efficiency of the sealing member 2.

[0076] In a preferred embodiment, refer to Figure 1 and Figure 4The top of the nasal sealing area has a recess 241, which is used to accommodate the patient's nasal septum, thereby ensuring the contact area between the padding system and the patient's nose. This increases the airtightness between the padding system and the patient, while reducing the deformation of the nasal sealing area after the padding system is worn by the user. This avoids the phenomenon of pressure on the patient due to large deformation of the nasal sealing area, and further improves the patient's user experience.

[0077] Preferably, the recess 241 is formed by the downward recess of the top of the nose sealing area to reduce the manufacturing difficulty of the sealing member 2.

[0078] In a preferred embodiment, the thickness of the subnasal sealing area 24 is equal to the thickness of the upper lip sealing area 26 and the thickness of the lower lip sealing area 27, and both are less than the thickness of the side sealing area 28. On the one hand, this reduces the manufacturing difficulty of the sealing component 2, thereby increasing the yield of the sealing component 2 and reducing the production cost of the sealing component 2. At the same time, it makes the subnasal sealing area 24, the upper lip sealing area 26, and the lower lip sealing area 27 softer, thereby improving the wearing comfort of the patient. On the other hand, it increases the structural strength of the side sealing area 28 to ensure the contact area between the side sealing area 28 and the patient's face, thereby ensuring the airtightness between the padding system and the patient.

[0079] In a preferred embodiment, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 The elastic deformation portion 25 includes one or more folded sections 251, which are capable of providing a degree of compression or movement for the padding system in the subnasal sealing area 24.

[0080] Since the elastic deformation portion 25 includes one or more folded segments 251, the padding system can be compressed or moved to a certain extent in the subnasal sealing area 24 to ensure the contact area between the subnasal sealing area 24 and the patient, thereby ensuring the airtightness between the padding system and the patient. At the same time, it can also reduce the pressure exerted on the patient by the subnasal sealing area 24 to reduce the pressure on the patient, thereby further improving the patient's user experience.

[0081] Preferably, the folded segment 251 is provided and extends circumferentially along the subnasal sealing area 24 to simplify the structural design of the mold used to produce the sealing component 2, reduce the production difficulty of the sealing component 2, and thus reduce the production cost of the sealing component 2; and the wall thickness of the folded segment 251 is less than the wall thickness at the connection position between the sealing component 2 and the folded segment 251, so that the folded segment 251 deforms first than other areas of the sealing component 2, so as to ensure the elastic support effect on the subnasal sealing area 24.

[0082] This application does not specifically limit the structure of the folded segment 251; preferably, refer to... Figure 3 , Figure 7 and Figure 8 The folded segment 251 includes a first wall 252 and a second wall 253, with an included angle α between the first wall 252 and the second wall 253, which satisfies the following: 20°≤α≤80°.

[0083] It is understandable that the cross-sectional shape of the folded segment 251 is V-shaped.

[0084] Since the first wall 252 and the second wall 253 form an included angle α, and the included angle α satisfies: 20°≤α≤80°, on the one hand, the folding section 251 ensures the supporting effect of the nasal sealing area 24, so as to ensure the contact area between the nasal sealing area 24 and the patient, and to ensure the airtightness between the padding system and the patient, thereby ensuring the treatment effect on the patient. On the other hand, it ensures the elastic deformation effect of the nasal sealing area 24, so as to reduce the force required by the padding system when the nasal sealing area 24 deforms, thereby reducing the pressure rod felt by the patient and improving the patient's wearing experience.

[0085] Furthermore, refer to Figure 3 , Figure 7 and Figure 8 The first wall 252 and the second wall 253 form a deformation space with an opening on the side. The opening height c of the deformation space satisfies: 2mm≤c≤15mm. On the one hand, this ensures the deformation range of the padding system in the subnasal sealing area 24, thereby improving the adjustment range of the padding system so that it can be used for a variety of patients, thus increasing the flexibility of the padding system. On the other hand, it reduces the manufacturing difficulty of the padding system.

[0086] Furthermore, refer to Figure 3 , Figure 7 and Figure 8 The opening of the deformation space faces the outside of the sealing member 2, so that the first wall 252 and the second wall 253 are located inside the sealing member 2, thereby reducing the production difficulty of the sealing member 2 and enabling the folded section 251 to avoid the patient's face, so as to ensure the contact area between the padding system and the patient and improve the patient's wearing experience.

[0087] Furthermore, refer to Figure 3 , Figure 7 and Figure 8The first wall 252 is located above the second wall 253, and the width of the first wall 252 is smaller than the width of the second wall 253. This allows the outer contour of the sealing member 2 to transition smoothly at the fold section 251, thus ensuring the outer contour of the sealing member 2. This increases the aesthetics of the gasket system and also reduces the production difficulty of the gasket system.

[0088] It is understandable that the inner end of the first wall 252 protrudes from the inner side of the sealing member 2, and the inner end of the second wall 253 also protrudes from the inner side of the sealing member 2. The inner end of the first wall 252 is connected to the inner end of the second wall 253 to ensure the elastic support effect of the elastic deformation part 25 on the nasal sealing area 24.

[0089] In other embodiments, the cross-section of the folded segment 251 may also be C-shaped, wavy, or other shapes that can deform.

[0090] Reference Figures 1 to 9 This application also discloses a respiratory patient interface, which includes a support 3, a padding system connected to the support 3, a headband 4 connected to the support 3, and a connector 5 connected to the support 3 and used to communicate with the padding system, wherein the padding system adopts the aforementioned padding system.

[0091] Because the respiratory patient interface in this application uses the aforementioned padding system, the production difficulty of the respiratory patient interface is reduced, the yield rate of the respiratory patient interface is increased, the production cost of the respiratory patient interface is reduced, and the contact area between the padding system and the patient is guaranteed, thereby improving the airtightness between the respiratory patient interface and the patient's face.

[0092] Furthermore, the respiratory patient interface also includes a breathing tube 6 connected to the connector 5 to connect the respiratory patient interface to a treatment device to provide oxygen or a gas mixture to the patient.

[0093] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0094] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0095] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A padding system for a respiratory patient interface, characterized in that, The respiratory patient interface is used to seal and deliver airflow to the respiratory patient's airway inlet under a continuous positive pressure relative to ambient air pressure, and the padding system includes: The shell component (1) and the sealing component (2) that together with the shell component (1) form a breathing cavity; The housing member (1) is made of a relatively rigid material and includes an annular opening and a mating perimeter. The annular opening is configured to allow breathing gas to flow into the breathing chamber during use. The housing member (1) is connected and adapted to the sealing member (2) at the mating perimeter to provide relative support for the sealing member (2) during use. The sealing member (2) is made of a relatively flexible material and forms a seal along the facial contour of the breathing patient during use. The sealing member (2) is configured to be positioned completely below the bridge of the nose of the breathing patient and expose the bridge of the nose of the breathing patient. The sealing member (2) includes a nasal sealing area and an oral sealing area located below the nasal sealing area. The nasal sealing area includes at least one nasal opening (21). The oral sealing area includes at least one oral opening (22). The nasal sealing area includes a nasal corner support area (23) and a subnasal sealing area (24) above the nasal opening (21). The subnasal sealing area (24) is provided with an elastic deformation portion (25) around its periphery. The oral sealing area includes an upper lip sealing area (26), a lower lip sealing area (27), and a side sealing area (28). The nasal corner support area (23) is located between the side sealing area (28) and the nasal sub-sealing area (24). The inner side of the nasal corner support area (23) is provided with an elastic support structure (231) protruding from the inner side of the sealing member (2) to increase the structural strength of the nasal corner support area (23).

2. The respiratory patient interface padding system according to claim 1, characterized in that, The width a of the elastic support structure (231) satisfies: 10mm≤a≤30mm; the thickness b of the elastic support structure (231) satisfies: 1.5mm≤b≤5mm.

3. The respiratory patient interface padding system according to claim 1, characterized in that, The thickness of the side sealing area (28) is less than the thickness of the elastic support structure (231).

4. A respiratory patient interface padding system according to claim 1, characterized in that, The sealing member (2) has a connecting end (29) connected to the housing member (1) and a sealing end (291) opposite to the connecting end (29), and the thickness of the sealing member (2) gradually decreases from the connecting end (29) to the sealing end (291).

5. A liner system for a respiratory patient interface according to claim 1, characterized in that, The top of the nasal sealing area has a recess (241) for accommodating the patient's nasal septum.

6. A liner system for a respiratory patient interface according to claim 1, characterized in that, The thickness of the subnasal sealing area (24) is equal to the thickness of the upper lip sealing area (26) and the thickness of the lower lip sealing area (27), and both are less than the thickness of the side sealing area (28).

7. A respiratory patient interface padding system according to any one of claims 1-6, characterized in that, The elastic deformable portion (25) includes one or more folded segments (251), which are capable of providing a degree of compression or movement of the padding system in the subnasal sealing area (24).

8. A liner system for a respiratory patient interface according to claim 7, characterized in that, The folded segment (251) includes a first wall (252) and a second wall (253), and an included angle α is formed between the first wall (252) and the second wall (253), wherein the included angle α satisfies: 20°≤α≤80°.

9. A liner system for a respiratory patient interface according to claim 8, characterized in that, The first wall (252) and the second wall (253) form a deformation space with an opening on the side, and the opening height c of the deformation space satisfies: 2mm≤c≤15mm.

10. A liner system for a respiratory patient interface according to claim 8, characterized in that, The first wall (252) is located above the second wall (253), and the width of the first wall (252) is smaller than the width of the second wall (253).

11. A respiratory patient interface, characterized in that, The device includes a support (3), a padding system connected to the support (3), a headband (4) connected to the support (3), and a connector (5) connected to the support (3) and used for communicating with the padding system, wherein the padding system is selected from the padding systems described in any one of claims 1-10.

Images