A respiratory mask cushion for improved fit
By setting gaskets and airbag modules on the breathing mask to drive the pressure surface to move in the opposite direction, combined with pressure sensor detection, the problem of poor fit between the breathing mask and the patient's face is solved, achieving a better fit and user comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN PEOPLES HOSPITAL
- Filing Date
- 2025-03-17
- Publication Date
- 2026-06-23
AI Technical Summary
The existing breathing masks do not fit tightly to the faces of different patients, resulting in air leakage and uneven pressure distribution, which affects the treatment effect and may cause skin pressure injuries.
A gasket is placed on the breathing mask, and the gasket contacts the patient's face to form several pressure surfaces. The inner and outer sides of the pressure surfaces are moved in opposite directions by the airbag module. The pressure is detected by the pressure sensor and the tilt is controlled to match the facial shape of different patients.
It improves the fit between the breathing mask and the patient's face, reduces air leakage, avoids pressure injuries, and enhances user compliance.
Smart Images
Figure CN224387890U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of breathing mask accessories technology, and more particularly to a breathing mask pad for improving fit. Background Technology
[0002] In the medical field, to prevent cross-infection between medical staff and patients, and to cope with various respiratory diseases such as asthma and chronic obstructive pulmonary disease, respiratory masks have been developed to meet the needs of medical protection and respiratory support. They offer numerous advantages. First, they provide a high concentration of oxygen, helping patients maintain normal respiratory function and are suitable for patients with various symptoms of breathing difficulties or hypoxia. Second, respiratory masks are made of medical-grade materials, ensuring safety and reliability. Furthermore, they are highly efficient at delivering oxygen, ensuring that patients' blood oxygen saturation reaches normal levels.
[0003] When a patient wears a breathing mask, the mask fits snugly against their face and chin. However, head sizes and facial shapes vary considerably among patients. Current breathing masks typically have fixed dimensions, leading to variations in the curvature of the edges when in contact with different patients' faces. Since the edge curvature is also fixed, this results in a loose fit, making air leakage more likely and affecting treatment effectiveness. Furthermore, prolonged wear causes uneven pressure distribution on the face, potentially leading to pressure sores, discomfort, and reduced patient compliance. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this application is to provide a breathing mask pad for improving fit, aiming to solve the problem that the edges of existing breathing masks do not fit tightly to the faces of different patients.
[0005] The technical solution adopted by this application to solve the technical problem is as follows: A breathing mask pad for improving fit, comprising: a gasket, the gasket being detachably mounted on the breathing mask, the surface of the gasket in contact with the patient's face forming a plurality of pressure surfaces, the pressure surfaces having opposing inner and outer sides, the inner and outer sides of the pressure surfaces being driven to move toward or away from the patient's face.
[0006] A plurality of airbag modules are disposed within the gasket, and the plurality of airbag modules are respectively connected to a plurality of pressure-applying surfaces. The inner and outer sides of the plurality of pressure-applying surfaces move in opposite directions under the drive of the corresponding airbag modules.
[0007] A plurality of pressure sensors are disposed on the inner and outer sides of a plurality of pressure-applying surfaces, and the pressure sensors are used to detect the pressure between the inner and outer sides of the pressure-applying surfaces and the patient's face.
[0008] Furthermore, the airbag module includes two airbags, which are disposed within the gasket and are respectively connected to the inner and outer sides of the pressure surface.
[0009] A cylinder module is disposed within the gasket and is connected to two airbags respectively. The cylinder module is used to drive the two airbags to expand and contract simultaneously.
[0010] Furthermore, the cylinder module includes: a cylinder, the cylinder being disposed within the gasket, and the two ends of the cylinder being connected to the two airbags respectively;
[0011] A piston, which is slidably disposed within the cylinder along the length direction of the cylinder;
[0012] A lead screw module is connected to the cylinder, and the piston slides under the drive of the lead screw module.
[0013] Furthermore, the cylinder is coaxially arranged with the lead screw module, the cylinder module is disposed between the two airbags, and the cylinder is arranged parallel to the two airbags.
[0014] Furthermore, several pressure sensors are respectively disposed between several airbags and the corresponding pressure application surfaces.
[0015] Furthermore, the gasket includes: a body portion, the body portion being annular in shape, the body portion being detachably mounted on a breathing mask, and the pressure-applying surface being disposed on the body portion;
[0016] The receiving cavity is disposed within the main body, and a plurality of the airbag modules and a plurality of the pressure sensors are disposed within the receiving cavity.
[0017] Furthermore, the gasket also includes a mounting groove disposed on the surface of the body portion opposite to the pressure-applying surface, the mounting groove being used for connection with a breathing mask.
[0018] Furthermore, the pressure application surface is provided with three surfaces, and the three pressure application surfaces are provided corresponding to the patient's face and chin.
[0019] Compared with the prior art, this utility model sets a gasket on the breathing mask to contact the patient's face. The surface of the gasket in contact with the patient's face forms several pressure surfaces. In use, several airbag modules can be controlled to drive the corresponding pressure surfaces to move toward or away from the patient's face. Since the inner and outer sides of the pressure surfaces move in opposite directions, the pressure surfaces will tilt. Therefore, in actual use, the degree of tilt of the pressure surfaces can be controlled to match the faces of different patients, thereby improving the fit between the breathing mask and the patient's face. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall structure of the breathing mask pad for improving fit from one perspective, as provided in this embodiment.
[0022] Figure 2 This is a schematic diagram of the overall structure of the breathing mask pad for improving fit from another perspective provided in this embodiment;
[0023] Figure 3 This is a partial cross-sectional view of the breathing mask pad provided in this embodiment for improving fit;
[0024] Figure 4 This is the embodiment. Figure 3 A magnified schematic diagram of the structure at point A;
[0025] Figure 5 This is a cross-sectional view of the breathing mask pad provided in this embodiment for improving fit;
[0026] Figure 6 This is the embodiment. Figure 5 A magnified schematic diagram of the structure at point B.
[0027] In the diagram: 100, washer; 110, body; 120, pressure surface; 121, inner side; 122, outer side; 130, receiving cavity; 140, mounting groove; 200, airbag module; 210, airbag; 220, cylinder module; 221, cylinder; 222, piston; 223, lead screw module; 300, pressure sensor. Detailed Implementation
[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0029] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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 on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] Furthermore, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.
[0032] This utility model provides, for example Figures 1 to 6 The image shows a breathing mask pad designed to improve fit, aiming to address the shortcomings of existing breathing masks where the edges do not fit snugly against the faces of different patients.
[0033] The breathing mask pad used to improve fit mainly includes: gasket 100, several airbag modules 200 and pressure sensor 300.
[0034] The gasket 100 is detachably mounted on the breathing mask. The surface of the gasket 100 that contacts the patient's face forms a plurality of pressure surfaces 120. The pressure surfaces 120 have opposing inner sides 121 and outer sides 122. The inner sides 121 and outer sides 122 of the pressure surfaces 120 are driven to move toward or away from the patient's face.
[0035] Specifically, such as Figure 1 As shown, the inner side 121 of the pressure surface 120 is the side of the pressure surface 120 facing the center of the gasket 100, and the outer side 122 of the pressure surface 120 is the side of the pressure surface 120 away from the center of the gasket 100. Several pressure surfaces 120 can be made of easily deformable materials such as silicone, and can move towards or away from the patient's face when force is applied.
[0036] Several airbag modules 200 are disposed within the gasket 100. The airbag modules 200 are respectively connected to several pressure surfaces 120. The inner side 121 and outer side 122 of the pressure surfaces 120 are driven by the corresponding airbag modules 200 to move in opposite directions.
[0037] Specifically, considering the patient's face as an arc, it can be assumed that the center of the face is convex while the edges are concave. The "curvature" and "outer diameter" of different patients' faces vary. Therefore, when the inner side 121 of one of the pressure surfaces 120 is driven to move away from the patient's face, and the outer side 122 is driven to move towards the patient's face, the pressure surface 120 will gradually tilt until it is tangent to the part of the pressure surface 120 that contacts the patient's face. At this point, the fit between the breathing mask and the patient's face is considered to be at its highest. Therefore, in actual use, the angle of the pressure surface 120 can be adjusted according to the different facial features of different patients to improve the fit between the breathing mask and the patient's face.
[0038] Several pressure sensors 300 are respectively disposed on the inner side 121 and outer side 122 of several pressure surfaces 120. The pressure sensors 300 are used to detect the pressure between the inner side 121 and outer side 122 of the pressure surface 120 and the patient's face.
[0039] In practical use, to avoid excessive force exerted by the pressure surface 120 on the patient's face, a pressure preset value can be set. When several pressure sensors 300 detect that the pressure between the inner side 121 and outer side 122 of the pressure surface 120 and the patient's face exceeds the preset value, the tilting of the pressure surface 120 will stop, thus preventing injury to the patient's face. Simultaneously, several pressure sensors 300 can detect the pressure on the inner side 121 and outer side 122 of the same pressure surface 120 to determine the degree of fit between the breathing mask and the patient's face. That is, when the pressure on the inner side 121 and outer side 122 of the same pressure surface 120 is the same, it can be considered that the breathing mask has the highest degree of fit with the patient's face. It should be noted that the above embodiment can be controlled by a microcontroller, or the values of several pressure sensors 300 can be displayed on a monitor for manual reference and comparison; this is not limited here.
[0040] When a patient wears a breathing mask, the mask fits snugly against their face and chin. However, head sizes and facial shapes vary considerably among patients. Current breathing masks typically have fixed dimensions, leading to variations in the curvature of the edges when in contact with different patients' faces. Since the edge curvature is also fixed, this results in a loose fit, making air leakage more likely and affecting treatment effectiveness. Furthermore, prolonged wear causes uneven pressure distribution on the face, potentially leading to pressure sores, discomfort, and reduced patient compliance.
[0041] This invention features a gasket 100 on a breathing mask to contact the patient's face. The surface of the gasket 100 in contact with the patient's face forms several pressure surfaces 120. During use, several airbag modules 200 can be controlled to drive the corresponding pressure surfaces 120 to move toward or away from the patient's face. Since the inner side 121 and the outer side 122 of the pressure surface 120 move in opposite directions, the pressure surface 120 will tilt. Therefore, in actual use, the tilt of the pressure surface 120 can be controlled to match the faces of different patients, thereby improving the fit between the breathing mask and the patient's face.
[0042] In some embodiments, such as Figures 3 to 6 As shown, the airbag module 200 includes two airbags 210, which are disposed inside the gasket 100 and are respectively connected to the inner side 121 and the outer side 122 of the pressure surface 120.
[0043] The cylinder module 220 is disposed inside the gasket 100 and is connected to two airbags 210 respectively. The cylinder module 220 is used to drive the two airbags 210 to expand and contract simultaneously.
[0044] Specifically, the gasket 100 may consist of a relatively rigid outer shell and a relatively soft contact surface. The outer shell is connected to the breathing mask. The cylinder modules 220 of the airbag 210 are all disposed inside the outer shell and are connected and fixed to the outer shell. The pressure surfaces 120 are respectively disposed on the contact surfaces. The contact surfaces can move toward the patient's face as the airbag 210 expands and move away from the patient's face as the airbag 210 contracts.
[0045] In some embodiments, such as Figures 3 to 6 As shown, the cylinder module 220 includes: a cylinder 221, which is disposed in the washer 100, and the two ends of the cylinder 221 are respectively connected to two airbags 210.
[0046] Piston 222 is slidably disposed inside cylinder 221 along the length direction of cylinder 221;
[0047] The lead screw module 223 is connected to the cylinder 221, and the piston 222 slides under the drive of the lead screw module 223.
[0048] In some embodiments, such as Figures 3 to 6 As shown, cylinder 221 and lead screw module 223 are coaxially arranged, cylinder module 220 is arranged between two airbags 210, and cylinder 221 and two airbags 210 are arranged in parallel.
[0049] Specifically, cylinder 221 and the two airbags 210 are both strip-shaped and are arranged along the circumference of gasket 100, thereby reducing the width of gasket 100 (the distance between the inner side 121 and the outer side 122 of the pressure surface 120).
[0050] In some embodiments, such as Figures 5 to 6 As shown, several pressure sensors 300 are respectively disposed between several airbags 210 and corresponding pressure surfaces 120. They can detect the pressure between the pressure surfaces 120 and the patient's face. The pressure sensors 300 are preferably thin-film pressure sensors 300, which can be attached to the pressure surfaces 120 for use.
[0051] In some embodiments, such as Figures 1 to 6 As shown, the gasket 100 includes: a body portion 110, the body portion 110 being annular in shape, the body portion 110 being detachably mounted on a breathing mask, and a pressure surface 120 being disposed on the body portion 110;
[0052] The receiving cavity 130 is located inside the main body 110, and several airbag modules 200 and several pressure sensors 300 are all located inside the receiving cavity 130.
[0053] Preferably, the cavity 130 is equipped with a power supply, a lead screw module 223 drive board and other circuit structures, so that medical staff can control the movement of the lead screw module 223 via wired or wireless means.
[0054] In some embodiments, such as Figures 2 to 6 As shown, the gasket 100 also includes a mounting groove 140, which is disposed on the surface of the body portion 110 opposite to the pressure surface 120, and is used to connect to a breathing mask.
[0055] In some embodiments, three pressure surfaces 120 are provided, and the three pressure surfaces 120 correspond to the patient's cheeks and chin.
[0056] In actual use, the patient's cheeks and chin have a large curvature. When the gasket 100 comes into contact with the patient's face, the tightness of the contact between the gasket 100 and the patient's cheeks and chin can be improved by adjusting the tilt angle of the corresponding pressure surface 120, thereby greatly improving the fit between the breathing mask and the patient's face.
[0057] In summary, a breathing mask pad for improving fit is provided, comprising a gasket, several airbag modules, and a pressure sensor. The surface of the gasket that contacts the patient's face forms several pressure surfaces. The inner and outer sides of these pressure surfaces move in opposite directions driven by the corresponding airbag modules. The pressure sensor detects the pressure between the inner and outer sides of the pressure surfaces and the patient's face. This invention, by setting a gasket on the breathing mask to contact the patient's face, and the surface of the gasket forming several pressure surfaces, allows for control of the airbag modules to drive the corresponding pressure surfaces toward or away from the patient's face during use. Because the inner and outer sides of the pressure surfaces move in opposite directions, the pressure surfaces tilt. Therefore, in actual use, the degree of tilt of the pressure surfaces can be controlled to match the faces of different patients, improving the fit between the breathing mask and the patient's face.
[0058] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A breathing mask pad for improving fit, characterized in that, include: A gasket for removable mounting on a breathing mask, wherein the surface of the gasket in contact with the patient’s face forms a plurality of pressure surfaces, the pressure surfaces having opposing inner and outer sides, the inner and outer sides of the pressure surfaces being driven to move toward or away from the patient’s face. A plurality of airbag modules are disposed within the gasket, and the plurality of airbag modules are respectively connected to a plurality of pressure-applying surfaces. The inner and outer sides of the plurality of pressure-applying surfaces move in opposite directions under the drive of the corresponding airbag modules. A plurality of pressure sensors are disposed on the inner and outer sides of a plurality of pressure-applying surfaces, and the pressure sensors are used to detect the pressure between the inner and outer sides of the pressure-applying surfaces and the patient's face.
2. The breathing mask pad for improving fit according to claim 1, characterized in that, The airbag module includes two airbags, which are disposed within the gasket and connected to the inner and outer sides of the pressure surface, respectively. A cylinder module is disposed within the gasket and is connected to two airbags respectively. The cylinder module is used to drive the two airbags to expand and contract simultaneously.
3. The breathing mask pad for improving fit according to claim 2, characterized in that, The cylinder module includes: a cylinder, which is disposed within the gasket, and both ends of the cylinder are respectively connected to the two airbags; A piston, which is slidably disposed within the cylinder along the length direction of the cylinder; A lead screw module is connected to the cylinder, and the piston slides under the drive of the lead screw module.
4. The breathing mask pad for improving fit according to claim 3, characterized in that, The cylinder is coaxially arranged with the lead screw module, the cylinder module is arranged between the two airbags, and the cylinder is arranged parallel to the two airbags.
5. The breathing mask pad for improving fit according to claim 2, characterized in that, Several pressure sensors are respectively disposed between several airbags and the corresponding pressure application surfaces.
6. The breathing mask pad for improving fit according to claim 1, characterized in that, The gasket includes: a body portion, the body portion being annular in shape, the body portion being detachably mounted on a breathing mask, and the pressure-applying surface being disposed on the body portion; The receiving cavity is disposed within the main body, and a plurality of the airbag modules and a plurality of the pressure sensors are disposed within the receiving cavity.
7. The breathing mask pad for improving fit according to claim 6, characterized in that, The gasket further includes a mounting groove disposed on the surface of the body portion opposite to the pressure-applying surface, the mounting groove being used for connection with a breathing mask.
8. The breathing mask pad for improving fit according to any one of claims 1-7, characterized in that, The pressure application surface is provided with three surfaces, and the three pressure application surfaces are provided corresponding to the patient's face and chin.