Liner of breathing mask

Abstract

The embodiment of the invention discloses a liner of a breathing mask, and relates to the technical field of medical instruments.The liner comprises an upper opening, a lower opening, an outer side face, an inner side face, a nose bridge attaching part, a face attaching part and a jaw attaching part, the liner is made of an elastic soft material, and the face attaching part is in bilateral symmetry; a plurality of reinforcing ribs or / and deformation grooves are arranged on the inner side face corresponding to the face attaching portion, one ends of the reinforcing ribs or / and the deformation grooves face the upper opening, and the other ends of the reinforcing ribs or / and the deformation grooves face the lower opening. The ideal air sealing effect of the mask and the face of a patient is greatly improved; the mask is simple in structure, low in cost, capable of solving big problems and very suitable for the attribute that the mask is frequently replaced or disposable as a consumable.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a liner of a breathing mask. Background Art

[0002] At present, ventilators have been widely used in clinical treatment and hospital rescue. There is no need to insert a tube into the patient's airway through surgery. Instead, a pressure ventilation device and a breathing mask worn on the patient's face are used to deliver continuous pressure ventilation or variable pressure ventilation to the patient's airway to treat the patient. Since each patient's face shape is different, the mask's cushioning cannot fit the face shape of each patient, and the ideal sealing effect between the mask and the patient's face cannot be achieved. Summary of the invention

[0003] The purpose of the present invention is to provide a liner for a breathing mask, aiming to solve the problem in the prior art that reinforcing ribs and / or deformation grooves are provided to improve the ideal air sealing effect between the mask and the patient's face.

[0004] The present invention adopts the following technical solution: The present invention provides a cushion for a breathing mask, the cushion comprising an upper opening, a lower opening, an outer side surface, an inner side surface, a nose bridge contact portion, a face contact portion and a chin contact portion, the cushion is made of a flexible soft material, the face contact portion is bilaterally symmetrical, a plurality of reinforcing ribs and / or deformation grooves are arranged at the inner side surface portion corresponding to the face contact portion, one end of the reinforcing ribs and / or deformation grooves faces the upper opening and the other end faces the lower opening.

[0005] Furthermore, the distance between one end of the reinforcing rib and / or the deformation groove toward the upper opening is 0 to 30 mm, and the distance between the other end of the reinforcing rib and / or the deformation groove toward the lower opening is 0 to 15 mm.

[0006] Furthermore, the plurality of reinforcing ribs and / or deformation grooves include at least 4 reinforcing ribs and / or deformation grooves.

[0007] Furthermore, the distance between every two reinforcing ribs or / and deformation grooves among the four reinforcing ribs or / and deformation grooves is less than 20 mm.

[0008] Furthermore, a transition surface is provided at the root where the reinforcing rib and / or the deformation groove is connected to the inner side surface.

[0009] Furthermore, the thickness and / or height of the reinforcing rib and / or the deformation groove is 0.3 to 5 mm.

[0010] The present invention provides a liner for a breathing mask. The beneficial effect is to increase the probability of the liner of the mask being adapted to each patient's face shape, and greatly improve the ideal air sealing effect between the mask and the patient's face. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A three-dimensional schematic diagram of the inner side of a liner of a breathing mask; Figure 2 A schematic diagram of the outer three-dimensional shape of a liner of a breathing mask; Figure 3 is a schematic cross-sectional view of a liner of a breathing mask; Figure 4 A schematic cross-sectional view of a liner and a frame of a breathing mask; Markings in the figure: M1-outer side, M2-inner side K1-upper opening K2-lower opening T-reinforcement ribs and / or deformation grooves DETAILED DESCRIPTION

[0013] The cushion includes an upper opening, a lower opening, an outer side surface, an inner side surface, a nose bridge contact portion, a face contact portion, and a chin contact portion. The cushion is made of a flexible soft material. The face contact portion is bilaterally symmetrical. The inner side surface corresponding to the face contact portion is provided with a plurality of reinforcing ribs or / and deformation grooves. One end of the reinforcing ribs or / and deformation grooves faces the upper opening and the other end faces the lower opening. That is to say, the arrangement direction of each reinforcing rib or / and deformation groove is from the upper opening to the lower opening. Since the human face is irregular, the shapes of the upper opening and the lower opening of the outer side surface and the inner side surface are also irregular. Therefore, the directions of the reinforcing ribs or / and deformation grooves described in the present invention include but are not limited to oblique, positive, vertical, and tangential directions. Each reinforcing rib and / or deformation groove can support the mask body when the mask body transmits pressure, and at the same time, it can elastically deform to allow a larger area of ​​the outer side to fit the patient's face. The glue between the two reinforcing ribs and / or deformation grooves is thinner than the reinforcing ribs and / or deformation grooves, so the outer side and the inner side between the two reinforcing ribs and / or deformation grooves can also be more flexible. Since the mask cushion has elastic deformation functions with different strengths in multiple directions, the probability of adapting to each patient's face shape is increased, greatly improving the ideal air sealing effect between the mask and the patient's face. The structure is simple and low-cost to solve big problems, which is very suitable for masks that are consumables that are often replaced or disposable.

[0014] In practice, each reinforcing rib and / or deformation groove may be composed of multiple sections of reinforcing ribs and / or deformation grooves, which also falls within the scope of protection of the present invention and the claims.

[0015] After multiple sleep wearing experiments, the distance from one end of the reinforcing rib or / and deformation groove toward the upper opening is 0 to 30 mm, and the distance from the other end toward the lower opening is 0 to 15 mm. The multiple reinforcing ribs or / and deformation grooves include at least 4 reinforcing ribs or / and deformation grooves. The distance between every 2 reinforcing ribs or / and deformation grooves among the 4 reinforcing ribs or / and deformation grooves is less than 20 mm. The thickness or / and height of the reinforcing ribs or / and deformation grooves is 0.3 to 5 mm. According to the thickness of the commonly used silicone pads combined with the density and thickness or / and height of the reinforcing ribs or / and deformation grooves, it is most ideal to determine at least 4 reinforcing ribs or / and deformation grooves. Avoid the pressure of the reinforcing ribs or / and deformation grooves from being concentrated on the patient's face to cause uncomfortable red erythema.

[0016] The root of the reinforcing rib or / and the deformation groove connected to the inner side is provided with a transition surface. The transition surface in the present invention includes but is not limited to an R angle surface or an inclined surface or a curved surface, the purpose of which is to evenly disperse the pressure of the reinforcing rib or / and the deformation groove to the inner side of the face, and avoid the pressure of the reinforcing rib or / and the deformation groove being concentrated on the patient's face to cause uncomfortable red erythema.

[0017] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The above specific implementation is only illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in the field can make many forms without departing from the spirit of the present invention and the scope of protection of the claims, which are all within the protection of the present invention.

Claims

1. A liner for a breathing mask, characterized in that: The cushion comprises an upper opening, a lower opening, an outer side surface, an inner side surface, a nose bridge contact portion, a face contact portion and a chin contact portion; the cushion is made of a flexible soft material; the face contact portion is bilaterally symmetrical; a plurality of reinforcing ribs and / or deformation grooves are provided on the inner side surface corresponding to the face contact portion; one end of the reinforcing ribs and / or deformation grooves faces the upper opening and the other end faces the lower opening.

2. The elbow joint according to claim 1, characterized in that: The distance between one end of the reinforcing rib and / or the deformation groove and the upper opening is 0 to 30 mm, and the distance between the other end and the lower opening is 0 to 15 mm.

3. The elbow joint according to claim 1, characterized in that: The plurality of reinforcing ribs and / or deformation grooves include at least 4 reinforcing ribs and / or deformation grooves.

4. The elbow joint according to claim 3, characterized in that: The distance between every two of the four reinforcing ribs and / or deformation grooves is less than 20 mm.

5. The elbow joint according to claim 1, characterized in that: A transition surface is provided at the root where the reinforcing rib and / or the deformation groove is connected to the inner side surface.

6. The elbow joint according to claim 1, characterized in that: The thickness and / or height of the reinforcing rib and / or the deformation groove is 0.3 to 5 mm.

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