Frame assembly of patient interface and mask system

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a frame assembly of a patient interface and a mask system.The frame assembly comprises a main support component, and the main support component is provided with an airway interface component limiting a central hole opening; the airway interface member is configured to engage the breathing tube assembly for delivering a supply of pressurized air or breathable gas to the patient's airway inlet; the support arms are arranged on the two opposite side portions of the air channel connector component, each support arm extends outwards from the air channel connector component and comprises a rigid supporting component and a flexible component, the main support component is made of a first material, the rigid supporting component is made of a second material, and the flexible component is made of a flexible material. The flexible component is made of a third material, the rigidity of the first material is larger than that of the second material, and the rigidity of the second material is larger than that of the third material, so that the pressure intensity between the rigid supporting component and the face of the patient is reduced, discomfort of the patient is reduced, and the use experience of the patient is greatly improved.

Description

Technical Field

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

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

[0003] Currently, a breathing mask typically includes a main support, a mask mounted on the main support, and a connecting arm mounted on the main support. The two ends of the connecting arm extend to both sides of the main support for head strap connection. When using the breathing mask, the mask is wrapped around the patient's mouth and nose, and then the head strap is pulled forward from the back of the patient's head and connected to the connecting arm to secure the breathing mask using the head strap and connecting arm.

[0004] To facilitate observation of the patient's breathing status, the main support is usually made of transparent material. However, because the connecting arms are located on the main support and extend to both sides of the main support, the connecting arms will block the transparent area of ​​the main support, thus affecting medical staff's observation of the patient's breathing status. At the same time, because the connecting arms have a certain degree of rigidity, patients will experience discomfort after wearing the breathing mask on their face, and long-term wear may lead to pressure sores, thus affecting the patient's user experience. Utility Model Content

[0005] This application provides a framework component for a patient interface to facilitate medical staff in observing the patient's respiratory status, improve the patient's wearing comfort, and enhance the patient's user experience.

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

[0007] A patient interface frame assembly includes a main support member having an airway interface member defining a central orifice, the airway interface member being configured to engage a breathing tubing assembly for supplying pressurized air or breathable gas to a patient's airway inlet; and support arms disposed on opposite sides of the airway interface member, each support arm extending outward from the airway interface member; and each support arm including a rigid support member and a flexible member; the main support member is made of a first material, the rigid support member is made of a second material, and the flexible member is made of a third material, wherein the first material has a higher rigidity than the second material, and the second material has a higher rigidity than the third material.

[0008] By adopting the above technical solution, since the support arms are located on opposite sides of the airway interface component, the obstruction of the transparent area of ​​the airway interface component by the support arms is reduced, ensuring the visibility of the airway interface and thus facilitating medical staff to observe the patient's breathing status. Furthermore, since the support arms include rigid support components and flexible components, the rigid support component contacts the patient's face through the flexible component. The main support component is made of a first material, the rigid support component is made of a second material, and the flexible component is made of a third material. The rigidity of the first material is greater than that of the second material, and the rigidity of the second material is greater than that of the third material. This reduces the pressure between the rigid support component and the patient's face while ensuring the support effect of the rigid support component, thereby reducing patient discomfort and preventing pressure sores that may occur with prolonged wear, greatly improving the patient's experience. Simultaneously, the support arms remain in an open position when the frame assembly is not in use, reducing the difficulty of wearing the frame assembly and greatly facilitating its placement on the patient's face, thus improving the efficiency of frame assembly placement.

[0009] Especially when patients are lying on their side while wearing this frame structure, the flexible components greatly reduce the pressure between the rigid support components and the patient's face, thereby significantly improving the patient's wearing comfort.

[0010] Optionally, each of the rigid support members includes a main extension arm, an upper extension arm, and a lower extension arm. The main extension arm has a first end connected to the main support member via a connecting structure and a second end configured to transition to the upper extension arm and the lower extension arm. The second end extends obliquely upward and downward along the axis of the main extension arm to form the upper extension arm and the lower extension arm.

[0011] By adopting the above technical solution, since the rigid support component includes a main extension arm, an upper extension arm, and a lower extension arm, the number of connection points between the rigid support component and the headband is increased, thereby increasing the stability of the frame assembly and preventing relative movement between the frame assembly and the patient's head due to the patient's head movement. Furthermore, since the second end extends upward and downward along the axis of the main extension arm to form an upper extension arm and a lower extension arm, the axes of the main extension arm, the upper extension arm, and the lower extension arm intersect at a single point, making the rigid support component more balanced in terms of force, thereby increasing the stability of the frame assembly when worn on the patient's face.

[0012] Optionally, the axis of the main extension arm and the axis of the upper extension arm form an angle α, where α satisfies: 120°≤α≤160°;

[0013] And / or, the axis of the main extension arm and the axis of the lower extension arm form an angle γ, where γ satisfies: 90°≤γ≤110°;

[0014] And / or, the axis of the upper extension arm forms an angle β with the axis of the lower extension arm, where β satisfies: 120°≤β≤160°.

[0015] By adopting the above technical solution, since α satisfies: 120°≤α≤160° and / or γ satisfies: 90°≤γ≤110° and / or β satisfies: 120°≤β≤160°, on the one hand, the rigid support component is more ergonomic, thereby further improving the user's wearing experience; on the other hand, the rigid support component is more balanced in terms of force after being connected to the headband, thereby ensuring the stability of the frame component worn on the patient's face and further improving the user's wearing comfort.

[0016] Optionally, the flexible component is integrally formed with the rigid support component using a hot-pressing composite process.

[0017] By adopting the above technical solution, the flexible component is integrally formed with the rigid support component using a hot-pressing composite process, thereby increasing the connection stability between the flexible component and the rigid support component. This not only satisfies the support function of the rigid support component, but also achieves a comfortable wearing effect. Compared with adhesive or kit methods, it increases the aesthetics of the support arm, thereby further improving the patient's user experience.

[0018] Optionally, the flexible member includes a breathable elastic layer and breathable fabric layers disposed on both sides of the breathable elastic layer, wherein the breathable fabric layer located on one side of the breathable elastic layer is connected to the rigid support member.

[0019] By adopting the above technical solution, since the flexible component includes a breathable elastic layer and breathable fabric layers on both sides of the breathable elastic layer, the breathability of the flexible component is increased on the one hand, and the flexible component is more skin-friendly on the other hand, so as to further improve the wearing experience of patients.

[0020] Optionally, the rigid support member is provided with a limiting surface, and the end of the flexible member abuts against the limiting surface.

[0021] By adopting the above technical solution, since the end of the flexible component abuts against the limiting surface, the limiting surface can cooperate with the stop of the flexible component to limit the flexible component, thereby increasing the stability of the flexible component. In addition, when assembling the flexible component, the limiting surface can position the flexible component so that the assembler can quickly find the position where the flexible component needs to be installed, thereby improving the assembly efficiency and accuracy of the flexible component.

[0022] Optionally, each of the rigid support members includes a main extension arm, an upper extension arm, and a lower extension arm. The lower extension arm is provided with a snap-fit ​​portion. The frame assembly also includes a rotating member that can snap-fit ​​with the snap-fit ​​portion. The rotating member is rotatable about the axial direction of the snap-fit ​​portion and has a mounting hole for connecting a headband.

[0023] Alternatively, the headband may be provided with a engaging part that can engage with the engaging part, and the engaging part may be rotatable about the axial direction of the engaging part.

[0024] By adopting the above technical solution, when installing the headband, the headband is connected to the mounting hole on the rotating component. Since the rotating component can engage with the snap-fit ​​part, the headband can be assembled to the rigid support component by snap-fit, thereby reducing the difficulty of assembling the headband and improving the assembly efficiency of the frame assembly. Furthermore, the rotating component can rotate around the axial direction of the snap-fit ​​part, so that the angle between the headband and the rigid support component can be adjusted arbitrarily. On the one hand, this can further increase the patient's wearing comfort, and on the other hand, it can increase the fixation stability of the frame assembly.

[0025] When installing the headband, simply snap the mating part and the snap-fit ​​part together to facilitate assembly, thereby improving the wearing efficiency of the frame assembly and reducing the difficulty of wearing it. Since the mating part can rotate around the axial direction of the snap-fit ​​part, the angle between the headband and the rigid support member can be adjusted arbitrarily, thereby improving the patient's comfort when wearing the frame assembly and enhancing its fixation effect.

[0026] At the same time, the number of ways to wear the frame components has been increased to enhance the flexibility of frame component wearing methods.

[0027] Optionally, the flexible member is flush with the end of the lower extension arm or extends to the outside of the end of the lower extension arm.

[0028] By adopting the above technical solution, since the flexible component is flush with or extends to the lower extension arm, the area of ​​the flexible component is increased. This avoids the rigid support component from contacting the patient's face during the installation of the rotating component or mating part, thus preventing discomfort to the patient and further improving the patient's user experience.

[0029] Optionally, the airway interface component has connection holes on both opposite sides, and the frame assembly also includes a connection structure integrally formed on each of the support arms. Each connection structure includes a connection post passing through the corresponding connection hole and a connection piece disposed on the inner and outer sides of the airway interface component.

[0030] By adopting the above technical solution, the connection structure includes a connecting post passing through the connecting hole and connecting pieces located on the inner and outer sides of the airway interface component, thereby increasing the connection stability between the support arm and the airway interface component. At the same time, it reduces the area of ​​the transparent window of the airway interface component occupied by the support arm, so as to facilitate medical staff to observe the patient's breathing status.

[0031] Optionally, the airway interface component has receiving grooves on both its inner and outer sides, and at least a portion of the connecting piece is located in the receiving grooves.

[0032] By adopting the above technical solution, since at least part of the connecting piece is located in the receiving groove, the periphery of the connecting piece can cooperate with the groove wall of the receiving groove to prevent the support arm from rotating around the connecting column, thereby increasing the connection stability between the support arm and the airway interface component; at the same time, the setting of the receiving groove can also reduce the thickness of the connecting piece protruding from the inside of the airway interface component, so that the connecting piece and the mask can avoid each other, thereby increasing the connection stability between the mask and the airway interface component.

[0033] Optionally, the end of the airway interface component is provided with a clearance notch communicating with the receiving groove, and a connecting block located in the clearance notch is provided between the two connecting pieces.

[0034] By adopting the above technical solution, since a connecting block located in the clearance notch is provided between the two connecting pieces, on the one hand, the two connecting pieces are connected together by the connecting block to further increase the connection stability between the support arm and the airway interface component. On the other hand, the connecting block can be hidden in the clearance notch so that the connecting block can avoid the mask and increase the connection stability between the mask and the frame assembly.

[0035] This application also provides a mask system to facilitate medical staff in observing the patient's breathing status, improve the patient's wearing comfort, and enhance the user experience.

[0036] A mask system includes a mask body and a frame assembly as described above. The mask body is disposed on the airway interface member. The mask body has a stop surface, and the airway interface member has a mating surface. The stop surface can stop and engage with the mating surface to restrict relative rotation between the mask body and the airway interface member.

[0037] By adopting the above technical solution, the mask system in this application uses the aforementioned frame components, thereby reducing the area of ​​the transparent window of the airway interface component occupied by the support arm. This facilitates medical staff's observation of the patient's breathing status and reduces the pressure between the support arm and the patient's face, improving the patient's comfort when wearing the mask system and thus enhancing the patient's user experience. In addition, since the stop surface can cooperate with the mating surface stop, the connection stability between the mask body and the airway interface component is increased, ensuring the stability of the mask body when worn on the patient's face.

[0038] Optionally, the mask body is provided with a positioning groove, and the airway interface component is provided with a positioning rib that can extend into the positioning groove.

[0039] By adopting the above technical solution, since the positioning rib can extend into the positioning groove, the cooperation between the positioning rib and the positioning groove can further limit the mask body, thereby further increasing the connection stability between the mask body and the airway interface component, and also playing a foolproof role for the mask body.

[0040] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0041] 1. The frame component in this application includes a main support member having an airway interface member defining a central orifice, the airway structure member being configured to connect to a breathing tubing assembly for supplying pressurized air or breathable gas to the patient's airway inlet; and support arms located on opposite sides of the airway interface member, each support arm extending outward from the airway interface member, thereby reducing the obstruction of the transparent area of ​​the airway interface member by the support arms to ensure the visibility of the airway interface, thus ensuring that medical personnel can easily observe the patient's respiratory status; and each support arm includes a rigid support member and a flexible member; the main support member is made of a first material, the rigid support member is made of a second material, and the flexible member is made of a third material, the rigidity of the first material is greater than that of the second material, and the rigidity of the second material is greater than that of the third material, thereby reducing the pressure between the rigid support member and the patient's face while ensuring the support effect of the rigid support member, thereby reducing patient discomfort and avoiding the occurrence of pressure sores that may occur with long-term wear, thus greatly improving the patient's user experience. At the same time, it allows the support arm to remain in an open position when the frame component is not in use, thereby reducing the difficulty of wearing the frame component and making it much easier to wear the frame component on the patient's face, thus improving the efficiency of wearing the frame component.

[0042] 2. Each rigid support member in this application includes a main extension arm, an upper extension arm, and a lower extension arm, thereby increasing the connection points between the rigid support member and the headband to increase the stability of the frame assembly and prevent relative movement between the frame assembly and the patient's head due to the patient's head movement; the main extension arm has a first end connected to the main support member via a connecting structure and a second end configured to transition to the upper and lower extension arms. The second end extends upward and downward along the axis of the main extension arm to form the upper and lower extension arms, so that the axes of the main extension arm, the upper extension arm, and the lower extension arm intersect at one point, so that the rigid support member is more balanced under force, thereby increasing the stability of the frame assembly worn on the patient's face.

[0043] 3. The flexible component in this application is integrally formed with the rigid support component using a hot-pressing composite process, which increases the connection stability between the flexible component and the rigid support component. This not only satisfies the support function of the rigid support component, but also achieves a comfortable wearing effect. Compared with adhesive or kit methods, it increases the aesthetics of the support arm, thereby further improving the patient's user experience. Attached Figure Description

[0044] 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:

[0045] Figure 1 This is a schematic diagram of the structure of the mask system according to one embodiment of this application;

[0046] Figure 2 This is a structural schematic diagram of the rigid support member described in one embodiment of this application;

[0047] Figure 3 This is a schematic diagram of the support arm according to one embodiment of this application;

[0048] Figure 4 This is a structural schematic diagram of the rigid support member described in one embodiment of this application;

[0049] Figure 5 This is a partial structural cross-sectional view of the frame component described in one embodiment of this application;

[0050] Figure 6 This is a schematic diagram of the airway interface component according to one embodiment of this application;

[0051] Figure 7 This is a schematic diagram of the structure of the rotating component according to one embodiment of this application;

[0052] Figure 8 This is an exploded structural diagram illustrating the connection between the airway interface component and the mask body in one embodiment of this application.

[0053] Figure label:

[0054] 1. Airway interface component; 11. Receiving groove; 12. Circumvention notch; 13. Mating surface; 14. Positioning rib; 15. Connecting hole; 2. Support arm; 21. Rigid support component; 211. Main extension arm; 212. Upper extension arm; 213. Lower extension arm; 214. Limiting surface; 215. Snap-fit ​​part; 22. Flexible component; 3. Rotating component; 31. Mounting hole; 32. Snap-fit ​​cavity; 33. Extension wall; 4. Connecting structure; 41. Connecting post; 42. Connecting piece; 421. Connecting block; 5. Mask body; 51. Stop surface; 52. Positioning groove. Detailed Implementation

[0055] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] Reference Figures 1 to 8 A patient interface frame assembly is disclosed, comprising a main support member having an airway interface member 1 defining a central orifice, the airway interface member 1 being configured to engage a breathing tubing assembly for supplying pressurized air or breathable gas to the patient's airway inlet; and support arms 2 disposed on opposite sides of the airway interface member 1, each support arm 2 extending outward from the airway interface member 1; and each support arm 2 including a rigid support member 21 and a flexible member 22; the main support member is made of a first material, the rigid support member 21 is made of a second material, and the flexible member 22 is made of a third material, wherein the rigidity of the first material is greater than that of the second material, and the rigidity of the second material is greater than that of the third material.

[0061] Understandably, the support arm 2 is provided in two parts and is located on opposite sides of the airway interface member 1; at least a portion of each flexible member 22 is located inside the corresponding rigid support member 21, that is, at least a portion of the two flexible members 22 is located on opposite sides of the two rigid support members 21, so that the rigid support member 21 contacts the patient's face through the flexible member 22.

[0062] The rigidity of the first material is greater than that of the second material, and the rigidity of the second material is greater than that of the third material. This results in the airway interface component 1 having the greatest rigidity among the three components: the airway interface component 1, the rigid support component 21, and the flexible component 22. This ensures effective support for the mask and increases its stability when worn on the patient's face. Simultaneously, the rigid support component 21 has a rigidity between that of the airway interface component 1 and the flexible component 22, allowing the support arm 2 to remain open when the frame assembly is not in use. This reduces the difficulty of wearing the frame assembly, greatly facilitating its placement on the patient's face and improving wearing efficiency. Furthermore, the flexible component 22 has the least rigidity and is relatively soft, thus increasing the comfort of wearing the frame assembly on the patient's face.

[0063] Since the support arm 2 is located on both sides opposite to the airway interface component 1, the obstruction of the transparent area of ​​the airway interface component 1 by the support arm 2 is reduced, so as to ensure the visibility of the airway interface and thus ensure that medical staff can easily observe the patient's breathing status.

[0064] Furthermore, since the support arm 2 includes a rigid support member 21 and a flexible member 22, the rigid support member 21 contacts the patient's face through the flexible member 22. The main support member is made of a first material, the rigid support member 21 is made of a second material, and the flexible member 22 is made of a third material. The rigidity of the first material is greater than that of the second material, and the rigidity of the second material is greater than that of the third material. Thus, while ensuring the support effect of the rigid support member 21, the pressure between the rigid support member 21 and the patient's face is reduced, thereby reducing the patient's discomfort and avoiding the possibility of pressure sores from long-term wear, which greatly improves the patient's user experience.

[0065] Especially for patients lying on their side while wearing this frame structure, the flexible component 22 greatly reduces the pressure between the rigid support component 21 and the patient's face, thereby greatly improving the patient's wearing comfort.

[0066] This application does not specifically limit the structure of the rigid support member 21; preferably, refer to... Figure 2 , Figure 3 and Figure 4 Each rigid support member 21 includes a main extension arm 211, an upper extension arm 212, and a lower extension arm 213. The main extension arm 211 has a first end connected to the main support member via a connecting structure 4 and a second end configured to transition to the upper extension arm 212 and the lower extension arm 213. The second end extends upward and downward along the axis of the main extension arm 211 to form the upper extension arm 212 and the lower extension arm 213.

[0067] Since the rigid support member 21 includes a main extension arm 211, an upper extension arm 212, and a lower extension arm 213, the number of connection points between the rigid support member 21 and the headband is increased, thereby increasing the stability of the frame assembly and preventing relative movement between the frame assembly and the patient's head due to the patient's head movement. Furthermore, while ensuring the number of connection points between the rigid support member 21 and the headband, the production cost of the rigid support member 21 is reduced, and the contact area between the rigid support member 21 and the patient's face is decreased, thereby further improving the patient's wearing comfort.

[0068] Furthermore, since the second end extends upward and downward along the axis of the main extension arm 211 to form the upper extension arm 212 and the lower extension arm 213, the axes of the main extension arm 211, the upper extension arm 212 and the lower extension arm 213 intersect at one point, so that the rigid support member 21 is subjected to more balanced forces, thereby increasing the stability of the frame assembly worn on the patient's face.

[0069] Preferably, the main extension arm 211, the upper extension arm 212, and the lower extension arm 213 are integrally formed to increase the connection stability of the three and improve the fixing stability of the airway interface component 1.

[0070] Furthermore, refer to Figure 2 An angle α is formed between the axis of the main extension arm 211 and the axis of the upper extension arm 212, where α satisfies: 120°≤α≤160°; and / or, an angle γ is formed between the axis of the main extension arm 211 and the axis of the lower extension arm 213, where γ satisfies: 90°≤γ≤110°; and / or, an angle β is formed between the axis of the upper extension arm 212 and the axis of the lower extension arm 213, where β satisfies: 120°≤β≤160°.

[0071] Since α satisfies: 120°≤α≤160°, γ satisfies: 90°≤γ≤110°, and β satisfies: 120°≤β≤160°, on the one hand, the rigid support component 21 is more ergonomic, thereby further improving the user's wearing experience. On the other hand, the rigid support component 21 is more balanced in terms of force after being connected to the headband, thereby ensuring the stability of the frame component worn on the patient's face and further improving the user's wearing comfort.

[0072] In other embodiments, the rigid support member 21 may also be a triangular planar structure, as long as the rigid support member 21 has a first connection end that connects to the airway interface member 1 and two second connection ends that connect to the headband.

[0073] This application does not specify the connection method between the flexible component 22 and the rigid support component 21. Preferably, the flexible component 22 is integrally formed with the rigid support component 21 using a hot-pressing composite process, which increases the connection stability between the flexible component 22 and the rigid support component 21. This not only satisfies the support function of the rigid support component 21, but also achieves a comfortable wearing effect. Compared with adhesive or set methods, it increases the aesthetics of the support arm 2, thereby further improving the patient's user experience.

[0074] In other embodiments, the flexible member 22 may also be connected to the rigid support member 21 by adhesive bonding or fitting.

[0075] This application does not specifically limit the structure of the flexible component 22. Preferably, the flexible component 22 includes a breathable elastic layer and breathable fabric layers disposed on both sides of the breathable elastic layer. The breathable fabric layer located on one side of the breathable elastic layer is connected to the rigid support component 21, which increases the breathability of the flexible component 22 on the one hand and makes the flexible component 22 more skin-friendly on the other hand, so as to further improve the patient's wearing experience.

[0076] Preferably, the breathable elastic layer is made of high-density foam, and the breathable fabric layer is made of a blend of nylon fiber and spandex fiber or polyester fiber, so as to improve the breathability of the flexible component 22 and reduce the production cost of the flexible component 22.

[0077] Furthermore, the breathable fabric layer is overlaid on the outside of the breathable elastic layer so that the breathable elastic layer can be hidden inside the breathable fabric layer, thereby extending the service life of the breathable elastic layer.

[0078] In other embodiments, the flexible member 22 may also include a breathable elastic layer and a breathable fabric layer disposed on one side of the breathable elastic layer, the breathable elastic layer being connected to the rigid support member 21, so as to reduce the production cost of the flexible member 22.

[0079] In a preferred embodiment, refer to Figure 2 , Figure 3 and Figure 4 The rigid support member 21 is provided with a limiting surface 214, and the end of the flexible member 22 abuts against the limiting surface 214.

[0080] Specifically, the shape of the flexible component 22 is adapted to the shape of the support arm 2, and both the main extension arm 211 and the upper extension arm 212 are provided with limiting surfaces 214. Two ends of the flexible component 22 respectively abut against the two limiting surfaces 214, thereby enabling the limiting surfaces 214 to cooperate with the flexible component 22 to stop and limit the flexible component 22, thus increasing the stability of the flexible component 22. In addition, when assembling the flexible component 22, the limiting surfaces 214 can position the flexible component 22 so that the assembler can quickly find the position where the flexible component 22 needs to be installed, thereby improving the assembly efficiency and accuracy of the flexible component 22.

[0081] This application does not specifically limit the formation method of the limiting surface 214. Preferably, the limiting surface 214 is formed by thinning the middle part of the rigid support member 21 to reduce the production cost of the rigid support member 21. In other embodiments, the limiting surface 214 may also be formed on the side wall of the rib of the rigid support member 21.

[0082] This application does not specify the connection method between the headband and the rigid support member 21, which can be any of the following embodiments:

[0083] Implementation Method 1, in this implementation method, refer to Figure 1 , Figure 3 and Figure 7 Each rigid support member 21 includes a main extension arm 211, an upper extension arm 212 and a lower extension arm 213. The lower extension arm 213 is provided with a snap-fit ​​part 215. The frame assembly also includes a rotating member 3 that can snap-fit ​​with the snap-fit ​​part 215. The rotating member 3 can rotate about the axial direction of the snap-fit ​​part 215, and the rotating member 3 has a mounting hole 31 for connecting the headband.

[0084] Understandably, the end of the upper extension arm 212 is also provided with a mounting hole 31 for connecting the head strap.

[0085] When installing the headband, the headband is connected to the mounting hole 31 on the rotating component 3. Since the rotating component 3 can engage with the snap-fit ​​part 215, the headband can be assembled onto the rigid support component 21 by snap-fit, thereby reducing the difficulty of assembling the headband and improving the assembly efficiency of the frame assembly. Furthermore, the rotating component 3 can rotate around the axial direction of the snap-fit ​​part 215, so that the angle between the headband and the rigid support component 21 can be adjusted arbitrarily. On the one hand, this can further increase the patient's wearing comfort and ensure the flexibility of the wearing angle; on the other hand, it can increase the fixation stability of the frame assembly.

[0086] In this embodiment, the structure of the snap-fit ​​part 215 and the rotating member 3 is not specifically limited. Preferably, the snap-fit ​​part 215 is a snap-fit ​​post provided on the lower extension arm 213, and the rotating member 3 is provided with a snap-fit ​​cavity 32 that can snap-fit ​​with the snap-fit ​​post, so as to realize the snap-fit ​​engagement between the snap-fit ​​part 215 and the rotating member 3.

[0087] The better one is to refer to Figure 3 and Figure 7 The snap-fit ​​part 215 is a snap-fit ​​sub-buckle with a snap-fit ​​end. The snap-fit ​​cavity 32 has a through-hole for the snap-fit ​​end to snap into the interior of the snap-fit ​​cavity 32, so that the sub-buckle can snap into the interior of the snap-fit ​​cavity 32 through the side of the snap-fit ​​cavity 32. The mounting hole 31 and the through-hole are located on the same side of the snap-fit ​​cavity 32 to increase the connection stability between the rotating member 3 and the lower extension arm 213.

[0088] Furthermore, refer to Figure 7 The snap-fit ​​cavity 32 is provided with extended walls 33 on both sides of the passage. The distance between the two extended walls 33 gradually decreases in the direction close to the passage, so that the extended walls 33 can guide the snap-fit ​​part 215, thereby reducing the difficulty of assembling the rotating component 3 into the snap-fit ​​part 215 and improving the assembly efficiency of the rotating component 3.

[0089] In other embodiments, the snap-fit ​​part 215 is a snap-fit ​​post provided on the lower extension arm 213, the snap-fit ​​post having a snap-fit ​​end, and the rotating member 3 is provided with a snap-fit ​​hole for the snap-fit ​​end to pass through, so that the snap-fit ​​end passes through the snap-fit ​​hole and engages with the snap-fit ​​of the rotating member 3; or, the snap-fit ​​part 215 is a female buckle provided on the lower extension arm 213, and the rotating member 3 is provided with a female buckle, so that the female buckle and the female buckle together form a snap fastener structure.

[0090] The second embodiment differs from the first embodiment in that the headband is provided with a mating part that can engage with the snap-fit ​​part 215, and the mating part can rotate around the axial direction of the snap-fit ​​part 215.

[0091] It is understood that the rotating member 3 has been omitted in this embodiment. The existing headband has been improved by providing a mating part that can engage with the snap-fit ​​part 215. The end of the upper extension arm 212 is also provided with a mounting hole 31 for connecting the headband.

[0092] When installing the headband, simply snap the mating part on the headband into the snap-fit ​​part 215 to facilitate the assembly of the headband, thereby improving the wearing efficiency of the frame assembly and reducing the difficulty of wearing the frame assembly. Since the mating part can rotate around the axial direction of the snap-fit ​​part 215, the angle between the headband and the rigid support member 21 can be adjusted arbitrarily to improve the patient's comfort when wearing the frame assembly and to improve the fixation effect of the frame assembly.

[0093] In this embodiment, the structure of the snap-fit ​​part 215 and the mating part is not specifically limited. Preferably, the snap-fit ​​part 215 is a male buckle provided on the lower extension arm 213, and the mating part is a female buckle provided on the end of the headband, so that the male buckle and the female buckle together form a snap fastener structure.

[0094] In other embodiments, the snap-fit ​​part 215 is a snap-fit ​​post provided on the lower extension arm 213, and the mating part is a fixing piece provided on the end of the headband. The fixing piece is provided with a hole structure for the snap-fit ​​post to pass through, and one end of the snap-fit ​​post passes through the hole structure and snaps into the fixing piece.

[0095] In the third embodiment, both the upper extension arm 212 and the lower extension arm 213 are provided with mounting holes 31 for connecting the headband, so that the headband can be connected to the rigid support member 21 through the mounting holes 31.

[0096] In the above-described embodiments one and two, preferably, the flexible member 22 is flush with the end of the lower extension arm 213 or extends to the outside of the end of the lower extension arm 213, thereby increasing the area of ​​the flexible member 22. This avoids the rigid support member 21 from contacting the patient's face during the installation of the rotating member 3 or the mating part, which could cause discomfort to the patient and further improve the patient's user experience.

[0097] Preferably, both sides of the flexible member 22 protrude from the side of the rigid support member 21 to further improve the patient's wearing comfort.

[0098] This application does not specify the connection method between the support arm 2 and the airway interface component 1. Preferably, refer to... Figure 4 , Figure 5 and Figure 6 The airway interface component 1 has connection holes 15 on both sides. The frame assembly also includes a connection structure 4 integrally formed on each support arm 2. Each connection structure 4 includes a connection post 41 passing through the corresponding connection hole 15 and a connection piece 42 on the inner and outer sides of the airway interface component 1. This increases the connection stability between the support arm 2 and the airway interface component 1, while reducing the area of ​​the transparent window of the airway interface component 1 occupied by the support arm 2, so as to facilitate medical staff to observe the patient's breathing status.

[0099] Specifically, the connecting structure 4 is located at the end of the main extension arm 211 and is integrally formed with the rigid support member 21 to increase the connection stability between the connecting structure 4 and the support arm 2.

[0100] Furthermore, refer to Figure 5 and Figure 8 The airway interface component 1 has receiving grooves 11 on both its inner and outer sides. At least a portion of the connecting piece 42 is located in the receiving groove 11, so that the periphery of the connecting piece 42 can cooperate with the groove wall of the receiving groove 11 to prevent the support arm 2 from rotating around the connecting column 41, thereby increasing the connection stability between the support arm 2 and the airway interface component 1. At the same time, the setting of the receiving groove 11 can also reduce the thickness of the connecting piece 42 protruding from the inner side of the airway interface component 1, so that the connecting piece 42 can avoid the mask, thereby increasing the connection stability between the mask and the airway interface component 1.

[0101] Preferably, the connecting piece 42 located inside the airway interface component 1 is flush with the inner wall of the airway interface component 1, so that the connecting piece 42 can avoid contact with the mask, thereby increasing the stability of the mask.

[0102] Furthermore, refer to Figure 5 and Figure 6The end of the airway interface component 1 is provided with a clearance notch 12 that communicates with the receiving groove 11. A connecting block 421 located in the clearance notch 12 is provided between the two connecting pieces 42. On the one hand, the two connecting pieces 42 are connected together through the connecting block 421 to further increase the connection stability between the support arm 2 and the airway interface component 1. On the other hand, the connecting block 421 can be hidden in the clearance notch 12 so that the connecting block 421 can avoid the mask and increase the connection stability between the mask and the frame assembly.

[0103] This application does not specifically limit the first and second materials. Preferably, the first material is polycarbonate (PC), which has high light transmittance, as well as high stability, impact resistance, heat resistance, good support, and good dimensional stability, which can better support and position the mask and facilitate the positioning and assembly of the breathing tubing. The second material is polypropylene (PP), which has good tensile and compressive strength, good bending fatigue resistance, and can be bent multiple times. Compared with the PC material used for the support, it is more flexible, can better fit the patient's facial contours, has better fit, and is more comfortable to wear.

[0104] Reference Figure 1 , Figure 6 and Figure 8 This application also discloses a mask system, which includes a mask body 5 and a frame assembly as described above. The mask body 5 is disposed on the airway interface member 1. The mask body 5 has a stop surface 51, and the airway interface member 1 has a mating surface 13. The stop surface 51 can stop and engage with the mating surface 13 to restrict the relative rotation of the mask body 5 and the airway interface member 1.

[0105] Because the mask system in this application uses the aforementioned frame components, the area occupied by the transparent window of the airway interface component 1 by the support arm 2 is reduced, thereby facilitating medical staff to observe the patient's breathing status. At the same time, the pressure between the support arm 2 and the patient's face is reduced, thereby improving the patient's comfort when wearing the mask system and thus enhancing the patient's user experience. In addition, since the stop surface 51 can stop with the mating surface 13, the connection stability between the mask body 5 and the airway interface component 1 is increased, thereby ensuring the stability of the mask body 5 when worn on the patient's face.

[0106] Preferably, the stop surface 51 is located on the upper part of the mask body 5, and the mating surface 13 is located on the upper part of the airway interface component 1, so as to reduce the difficulty of assembling the mask body 5 to the airway interface component 1 and improve the assembly efficiency of the mask body 5.

[0107] In a preferred embodiment, refer to Figure 6 and Figure 8The mask body 5 is provided with a positioning groove 52, and the airway interface component 1 is provided with a positioning rib 14 that can extend into the positioning groove 52. The cooperation between the positioning rib 14 and the positioning groove 52 can further limit the mask body 5, thereby further increasing the connection stability between the mask body 5 and the airway interface component 1, and also playing a foolproof role for the mask body 5.

[0108] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0109] 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.

[0110] 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 framework component for a patient interface, characterized in that, The device includes a main support component having an airway interface component (1) defining a central orifice, the airway interface component (1) being configured to engage a breathing tubing assembly for supplying pressurized air or breathable gas to a patient's airway inlet; and support arms (2) located on opposite sides of the airway interface component (1), each of the support arms (2) extending outward from the airway interface component (1); and each of the support arms (2) including a rigid support component (21) and a flexible component (22); the main support component is made of a first material, the rigid support component (21) is made of a second material, and the flexible component (22) is made of a third material, wherein the rigidity of the first material is greater than that of the second material, and the rigidity of the second material is greater than that of the third material.

2. The framework component for a patient interface according to claim 1, characterized in that, Each of the rigid support members (21) includes a main extension arm (211), an upper extension arm (212), and a lower extension arm (213). The main extension arm (211) has a first end connected to the main support member via a connecting structure (4) and a second end configured to transition to the upper extension arm (212) and the lower extension arm (213). The second end extends obliquely upward and downward along the axis of the main extension arm (211) to form the upper extension arm (212) and the lower extension arm (213).

3. The framework component for a patient interface according to claim 2, characterized in that, The axis of the main extension arm (211) and the axis of the upper extension arm (212) form an angle α, where α satisfies: 120°≤α≤160°; And / or, the axis of the main extension arm (211) forms an angle γ with the axis of the lower extension arm (213), where γ satisfies: 90°≤γ≤110°; And / or, the axis of the upper extension arm (212) forms an angle β with the axis of the lower extension arm (213), where β satisfies: 120°≤β≤160°.

4. The framework component for a patient interface according to claim 1, characterized in that, The flexible component (22) is integrally formed with the rigid support component (21) using a hot-pressing composite process.

5. The framework component for a patient interface according to claim 1, characterized in that, The flexible member (22) includes a breathable elastic layer and breathable fabric layers disposed on both sides of the breathable elastic layer. The breathable fabric layer located on one side of the breathable elastic layer is connected to the rigid support member (21).

6. The framework component for a patient interface according to claim 1, characterized in that, The rigid support member (21) is provided with a limiting surface (214), and the end of the flexible member (22) abuts against the limiting surface (214).

7. The framework component for a patient interface according to claim 1, characterized in that, Each of the rigid support members (21) includes a main extension arm (211), an upper extension arm (212) and a lower extension arm (213), the lower extension arm (213) being provided with a snap-fit ​​part (215), the frame assembly also including a rotating member (3) capable of snap-fitting with the snap-fit ​​part (215), the rotating member (3) being capable of rotating about the axial direction of the snap-fit ​​part (215), and the rotating member (3) having a mounting hole (31) for connecting a headband; Alternatively, the headband may be provided with a engaging part that can engage with the engaging part (215), the engaging part being rotatable about the axial direction of the engaging part (215).

8. A frame component for a patient interface according to claim 7, characterized in that, The flexible member (22) is flush with the end of the lower extension arm (213) or extends to the outside of the end of the lower extension arm (213).

9. A framework component for a patient interface according to claim 1, characterized in that, The airway interface component (1) is provided with connection holes (15) on both sides opposite to each other. The frame assembly also includes a connection structure (4) integrally formed on each of the support arms (2). Each connection structure (4) includes a connection post (41) passing through the corresponding connection hole (15) and a connection piece (42) provided on the inner and outer sides of the airway interface component (1).

10. A frame component for a patient interface according to claim 9, characterized in that, The airway interface component (1) has receiving grooves (11) on both its inner and outer sides, and at least a portion of the connecting piece (42) is located in the receiving grooves (11).

11. A frame component for a patient interface according to claim 9, characterized in that, The end of the airway interface component (1) is provided with a clearance notch (12) communicating with the receiving groove (11), and a connecting block (421) located in the clearance notch (12) is provided between the two connecting pieces (42).

12. A face mask system, characterized in that, The device includes a mask body (5) and a frame assembly as described in any one of claims 1-11, wherein the mask body (5) is disposed on the airway interface member (1), the mask body (5) has a stop surface (51), the airway interface member (1) has a mating surface (13), and the stop surface (51) is capable of engaging with the mating surface (13) to restrict relative rotation between the mask body (5) and the airway interface member (1).

13. A face mask system according to claim 12, characterized in that, The mask body (5) is provided with a positioning groove (52), and the airway interface component (1) is provided with a positioning rib (14) that can extend into the positioning groove (52).

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