Oral-nasal mask assembly for breathing machine and oral-nasal mask
By designing a partitioned sealed mouth and nose pad and nose gasket structure, the problem of poor sealing of existing mouth and nose masks is solved, efficient sealing and oxygen confidentiality are achieved for patients with different face shapes, and the comfort and efficiency of ventilator use are improved.
Patent Information
- Application Number
- CN202422294307.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing oral and nasal masks have a silicone pad that does not fit the patient's face shape, which causes the face to be pressed tightly during sealing, resulting in indentations, and cannot effectively seal the mouth and nose of patients with different face shapes.
An oronasal mask assembly is designed, including an oronasal cushion, an oronasal mask shell and a ventilation tube. The oronasal cushion is divided into an oral gasket and a nasal gasket, which respectively seal the patient's mouth and nose. The upper end of the nasal gasket is set at an angle. The ventilation tube provides breathing assistance through the breathing holes, and a columella support plate and a folded sealing slope are set in the nasal gasket to enhance the sealing effect.
It achieves efficient sealing for patients with different face shapes, reduces facial indentations, improves sealing effects, and prevents oxygen leakage through anti-peek tongues, thereby enhancing breathing assistance effects.
Smart Images
Figure CN223404236U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of respiratory masks, and in particular to an oronasal mask assembly and an oronasal mask for a ventilator. Background Art
[0002] A ventilator is a medical device used to assist or replace a person's natural breathing process to treat respiratory insufficiency or other related conditions. It works by creating positive pressure during inspiration, forcing gas into the patient's lungs, and then expelling the gas during expiration through the elastic recoil of the patient's chest and lungs.
[0003] The ventilator needs to supply air to the patient through a respiratory mask. Respiratory masks include oronasal masks, nasal masks, and nasal pillow masks.
[0004] Among them, the oronasal mask refers to a breathing mask that covers the patient's mouth and nose. The oronasal mask can seal the patient's oral and nasal respiratory tract and prevent air leakage caused by mouth breathing.
[0005] Existing oronasal masks have a silicone pad on the inner fold for sealing. The pad extends from the bridge of the nose down to the mouth. Because everyone's nose bridge is different in length and height, if the silicone pad doesn't fit the patient's face, the headband is tightened to press the silicone pad against the patient's face to ensure a complete seal, ultimately leaving an indentation on the patient's face.
[0006] In order to improve the fit of an oronasal mask to the mouth and nose of patients with different face shapes, the present application provides an oronasal mask assembly and an oronasal mask for a ventilator. Utility Model Content
[0007] In order to overcome the problems existing in the related art, the first aspect of the present application provides an oronasal mask assembly for a ventilator, comprising: an oronasal cushion, an oronasal mask shell, and a ventilation tube;
[0008] The ventilation tube, the oronasal mask shell and the oronasal pad are assembled in sequence along the inhalation direction;
[0009] The ventilation tube is connected to the breathing air hole in the center of the oronasal mask shell through a pipe opening, and the oronasal pad is fixed around the oronasal mask shell;
[0010] The left and right ends of the mouth and nose pad are bent toward the inhalation direction, the upper end of the mouth and nose pad is provided with a nose gasket, and the lower end of the mouth and nose pad is provided with a mouth gasket;
[0011] The lower end of the nose gasket is connected to the upper end of the mouth gasket, and the upper end of the nose gasket is tilted toward the exhalation direction;
[0012] The oral gasket is used to seal the patient's mouth, the nasal gasket is used to seal the patient's nose, and the ventilation tube provides breathing assistance through the breathing hole.
[0013] In one embodiment, the middle portion of the oral gasket is hollowed out to form an oral air hole, and the middle portion of the nose gasket is hollowed out to form a first nose air hole and a second nose air hole.
[0014] In one embodiment, a columella support plate is further provided between the first nasal air hole and the second nasal air hole, the shape of the columella support plate is adapted to the shape of the columella, and the upper end of the nasal gasket is used to fit the patient's nose wing.
[0015] In one embodiment, the nose gasket further comprises a left nose wing sealing slope and a right nose wing sealing slope formed by folding toward the inhalation direction;
[0016] The first nasal air hole and the second nasal air hole are respectively arranged on the left nose wing sealing inclined surface and the right nose wing sealing inclined surface.
[0017] In one embodiment, the vent tube includes a tube body, an exhaust hole, and an anti-peeping tongue;
[0018] The exhaust hole is an opening on the side wall of the tube body. The anti-peeping tongue is arranged in the tube body and is located below the exhaust hole. The anti-peeping tongue is used to fold toward the inhalation direction and block the exhaust hole.
[0019] In one embodiment, one end of the anti-peeping tongue is movably connected to the inner wall of the tube body, the anti-peeping tongue fits the inner wall of the tube body along the circumference of the tube body, and the shape of the exhaust hole is adapted to the shape of the anti-peeping tongue.
[0020] A second aspect of the present application provides an oronasal mask for a ventilator, comprising: a detachable bracket, a headband, and the oronasal mask assembly described above;
[0021] The detachable bracket is movably connected to the oronasal mask shell of the oronasal mask assembly, and the headband is connected to the detachable bracket via a buckle;
[0022] The headband is used to fix the oral and nasal mask assembly on the patient's mouth and nose.
[0023] In one embodiment, the detachable bracket is movably connected to the outer folding surface of the oronasal mask shell, and the outer folding surface is the side of the oronasal mask shell facing the ventilation tube.
[0024] In one embodiment, magnetic clips are respectively provided at the left and right ends of the outer folding surface of the oral and nasal mask shell, and magnetic fasteners are respectively provided at the left and right ends of the detachable bracket.
[0025] In one embodiment, the detachable bracket includes a nasal gasket fixing strap and an oral gasket fixing strap;
[0026] The nose gasket fixing belt is fitted to the upper edge of the outer folding surface of the oronasal mask shell, and the mouth gasket fixing belt is fitted to the lower edge of the outer folding surface of the oronasal mask shell.
[0027] The technical solution provided by this application may have the following beneficial effects:
[0028] In this application, the oronasal mask shell is adapted to fold inwards around the patient's face, and the upper end of the nasal gasket is tilted around the oral gasket toward the exhalation direction. When the patient wears the oronasal mask, the nasal gasket can wrap around the nose along the nose tip and nostrils, independently sealing the nose. Finally, after the oral gasket seals, the ventilation tube is inserted to provide breathing assistance.
[0029] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.
[0031] Figure 1 A schematic diagram of the three-dimensional structure of a nasal pillow mask assembly according to an embodiment of the present application;
[0032] Figure 2 A rear view of a nasal pillow mask assembly according to an embodiment of the present application is shown;
[0033] Figure 3 A schematic diagram of the three-dimensional structure of a nasal pillow mask according to an embodiment of the present application;
[0034] Figure 4 for Figure 2 AA section view in the figure;
[0035] Description of the accompanying drawings: oral and nasal pad 1, nasal gasket 11, first nasal air hole 111, second nasal air hole 112, columella support plate 113, oral gasket 12, oral air hole 121, oral and nasal mask shell 2, ventilation tube 3, detachable bracket 10, magnetic clip 101, nasal gasket fixing strap 102, oral gasket fixing strap 103, headband 20, oral and nasal mask assembly 30, tube body 31, exhaust hole 3, anti-peek tongue piece 33. DETAILED DESCRIPTION
[0036] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0037] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0038] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0039] Example 1
[0040] The existing oral and nasal masks are provided with a silicone pad on the inner folding surface for sealing, and the silicone pad covers the patient's nose bridge and mouth area downward.
[0041] Since the length and height of each person's nose bridge are different, when the silicone pad does not fit the patient's face shape, in order to achieve a complete seal, the headband 20 will be tightened to press the silicone pad against the patient's face, eventually leaving an indentation on the patient's face.
[0042] In order to improve the fit of the oronasal mask to the mouth and nose of patients with different face shapes, the embodiment of the present application provides an oronasal mask assembly 30 for a ventilator, the structure of which is as follows: Figure 1 As shown, it includes: an oronasal pad 1, an oronasal mask shell 2 and a ventilation tube 3.
[0043] Specifically, the ventilation tube 3, the oronasal mask shell 2, and the oronasal pad 1 are assembled in sequence along the inhalation direction. The ventilation tube 3 is connected to the breathing air hole in the center of the oronasal mask shell 2 through the nozzle, and the oronasal pad 1 is fixed around the oronasal mask shell 2.
[0044] Preferably, the oral and nasal pad 1 is a silicone pad.
[0045] Furthermore, the left and right ends of the mouth-nose pad 1 are bent toward the inhalation direction, the upper end of the mouth-nose pad 1 is provided with a nose gasket 11, and the lower end of the mouth-nose pad 1 is provided with a mouth gasket 12.
[0046] In the embodiment of the present application, the oral gasket 12 is used to seal the patient's nose, the nasal gasket 11 is used to seal the patient's mouth, and the ventilation tube 3 provides breathing assistance through the breathing hole.
[0047] In this embodiment of the present application, the oral and nasal cushion 1 is divided into an oral gasket 12 and a nasal gasket 11 to seal the patient's oral and nasal areas respectively. Furthermore, the shapes of the oral gasket 12 and the nasal gasket 11 are optimized to fit the patient's mouth and nose respectively.
[0048] Specifically, on the inner folding surface of the nose and mouth pad 1, the lower end of the nose pad 11 is connected to the upper end of the mouth pad 12, and the upper end of the nose pad 11 is tilted toward the exhalation direction.
[0049] In this embodiment of the present application, the oronasal mask shell 2 is adapted to fold inwardly with the patient's face, and the upper end of the nasal gasket 11 is angled around the oral gasket 12 toward the exhalation direction. When the patient wears the oronasal mask, the nasal gasket 11 can wrap around the nose tip and nostrils to independently seal the nose. Finally, after the oral gasket 12 is sealed, the ventilation tube 3 is inserted to provide breathing assistance.
[0050] Example 2
[0051] Based on the first embodiment, the present application also provides an oral and nasal mask assembly 30 for a ventilator, including: Figure 1 The mouth and nose pad 1, the mouth and nose mask shell 2 and the ventilation tube 3.
[0052] Furthermore, the middle portion of the mouth gasket 12 is hollowed out to form a mouth air hole 121 , and the middle portion of the nose gasket 11 is hollowed out to form a first nose air hole 111 and a second nose air hole 112 .
[0053] Furthermore, a columella support plate 113 is provided between the first nasal air hole 111 and the second nasal air hole 112. The shape of the columella support plate 113 is adapted to the shape of the columella. The upper end of the nasal gasket 11 is used to fit the patient's nose wing.
[0054] Furthermore, the nose gasket 11 also includes a left nose wing sealing slope and a right nose wing sealing slope formed by folding toward the inhalation direction; the first nose air hole 111 and the second nose air hole 112 are respectively arranged on the left nose wing sealing slope and the right nose wing sealing slope.
[0055] In this embodiment of the present application, to fit the patient's mouth and nose separately, the center of the nasal gasket 11 is hollowed out to form a first nasal air hole 111 and a second nasal air hole 112, and a columella support plate 113 is provided between the air holes. Therefore, when the patient wears the oronasal mask, the nasal gasket 11 fits the nose and philtrum area through the left and right nose alar sealing slopes, and the columella support plate 113 between the two slopes prevents air leakage from the nose tip.
[0056] exist Figure 2 The AA direction section is obtained as follows Figure 4 The vent pipe 3 further comprises a pipe body 31 , an exhaust hole 32 and an anti-peeping tongue piece 33 .
[0057] In the vent pipe 3 , the exhaust hole 32 is an opening in the side wall of the tube body 31 , and the anti-peeping tongue piece 33 is provided in the tube body 31 , and the anti-peeping tongue piece 33 is located below the exhaust hole 32 .
[0058] In the embodiment of the present application, the anti-peeping flap 33 has an upturned state and a downturned state. When the ventilator is supplying air normally, oxygen moves upward along the vent tube 3. The air pressure below the anti-peeping flap 33 is greater than that above it. Therefore, the anti-peeping flap 33 will flip up toward the inhalation direction, blocking the exhaust hole 32 and preventing oxygen leakage. When the human body exhales carbon dioxide, the air pressure above the anti-peeping flap 33 will be greater than that below it. At this time, the anti-peeping flap 33 will flip down toward the exhalation direction, blocking the vent tube and allowing carbon dioxide to be released through the exhaust hole 32.
[0059] When the ventilator is operating normally, the anti-peeping flap 33 can effectively prevent oxygen leakage. When the ventilator malfunctions, the anti-peeping flap 33 can ensure the patient's normal breathing. Compared with the existing breathing mask exhaust hole 32, the anti-peeping flap 33 can prevent the waste of oxygen caused by leakage.
[0060] Specifically, one end of the anti-peeping tongue 33 is movably connected to the inner wall of the tube body 31 .
[0061] In one embodiment of the anti-peep tongue 33, as Figure 4 As shown, the anti-peeping tongue piece 33 is a sheet with appropriate flexibility. When the air pressure at the upper and lower ends of the anti-peeping tongue piece 33 is balanced or the air pressure at the upper end is greater than the air pressure at the lower end, the anti-peeping tongue piece 33 is in a flipped-down state; and when the air pressure at the lower end of the anti-peeping tongue piece 33 is greater than the air pressure at the upper end, the anti-peeping tongue piece 33 will flip up to block the exhaust hole 32.
[0062] In this embodiment, the anti-peeping tongue piece 33 is attached to the inner wall of the tube body 31 along the circumference of the tube body 31 , and the shape of the exhaust hole 32 is adapted to the shape of the anti-peeping tongue piece 33 .
[0063] In another embodiment of the anti-peeping tongue 33, the anti-peeping tongue 33 is a hard sheet material, which is connected to the inner wall of the ventilation pipe through a loose-leaf connector, and a limit block is provided on the anti-peeping tongue 33 to limit the movement of the anti-peeping tongue 33 in the flipped-up state and the flipped-down state.
[0064] Example 3
[0065] Based on the oral and nasal mask assembly 30 of embodiment 1 and embodiment 2, the embodiment of the present application provides an oral and nasal mask for a ventilator, such as Figure 3 As shown, it includes: a detachable bracket 10, a headband 20 and the oral and nasal mask assembly 30 described in embodiments one and two.
[0066] Specifically, the detachable bracket 10 is movably connected to the oronasal mask shell 2 of the oronasal mask assembly 30, and the headband 20 is connected to the detachable bracket 10 through a fastener; the headband 20 is used to fix the oronasal mask assembly 30 on the patient's mouth and nose.
[0067] In the detachable bracket 10 , the detachable bracket 10 is connected to the outer folding surface of the oronasal mask shell 2 through a magnetic fastener, and the outer folding surface is the side of the oronasal mask shell 2 facing the ventilation tube 3 .
[0068] In order to realize the movable connection of the detachable bracket 10, the left and right ends of the outer folding surface of the oral and nasal mask shell 2 are respectively provided with magnetic clips, and the left and right ends of the detachable bracket 10 are respectively provided with magnetic fasteners 101.
[0069] In order to fix the nose gasket 11 and the mouth gasket 12 respectively, the detachable bracket 10 includes a nose gasket fixing belt 102 and a mouth gasket fixing belt 103.
[0070] Specifically, the nose gasket fixing belt 102 fits the upper edge of the outer folding surface of the oronasal mask shell 2, and the mouth gasket fixing belt 103 fits the lower edge of the outer folding surface of the oronasal mask shell 2.
[0071] In the embodiment of the present application, the detachable bracket 10 fixes the headband 20 to the oral and nasal mask assembly 30 through the magnetic fastener 103. When the oral and nasal mask assembly 30 needs to be replaced, it is only necessary to install the new oral and nasal mask assembly 30 on the detachable bracket 10 and then connect the headband 20.
[0072] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.
Claims
1. An oral and nasal mask assembly for a ventilator, characterized in that: include: An oronasal cushion (1), an oronasal mask shell (2), and a ventilation tube (3); The ventilation tube (3), the oronasal mask shell (2), and the oronasal pad (1) are assembled in sequence along the inhalation direction; The ventilation tube (3) is connected to the breathing air hole in the center of the oronasal mask shell (2) through the tube opening, and the oronasal pad (1) is fixed on all sides of the oronasal mask shell (2); The left and right ends of the mouth-nose pad (1) are bent toward the inhalation direction, the upper end of the mouth-nose pad (1) is provided with a nose gasket (11), and the lower end of the mouth-nose pad (1) is provided with a mouth gasket (12); The lower end of the nose gasket (11) is connected to the upper end of the mouth gasket (12), and the upper end of the nose gasket (11) is tilted toward the exhalation direction; The mouth gasket (12) is used to seal the patient's mouth, the nose gasket (11) is used to seal the patient's nose, and the ventilation tube (3) provides breathing assistance through the breathing hole.
2. An oral and nasal mask assembly for a ventilator according to claim 1, characterized in that: The middle portion of the mouth gasket (12) is hollowed out to form a mouth air hole (121), and the middle portion of the nose gasket (11) is hollowed out to form a first nose air hole (111) and a second nose air hole (112).
3. An oral and nasal mask assembly for a ventilator according to claim 2, characterized in that: A columella support plate (113) is further provided between the first nasal air hole (111) and the second nasal air hole (112); the shape of the columella support plate (113) is adapted to the shape of the columella; and the upper end of the nasal gasket (11) is used to fit the nose wing of the patient.
4. An oral and nasal mask assembly for a ventilator according to claim 3, characterized in that: The nose gasket (11) further comprises a left nose wing sealing slope and a right nose wing sealing slope formed by folding toward the inhalation direction; The first nose air hole (111) and the second nose air hole (112) are respectively arranged on the left nose wing sealing inclined surface and the right nose wing sealing inclined surface.
5. The oral and nasal mask assembly for a ventilator according to claim 1, characterized in that: The vent pipe (3) comprises a pipe body (31), an exhaust hole (32) and an anti-peeping tongue (33); The exhaust hole (32) is an opening on the side wall of the tube body (31); the anti-peeping tongue piece (33) is arranged in the tube body (31); the anti-peeping tongue piece (33) is located below the exhaust hole (32); the anti-peeping tongue piece (33) is used to fold toward the inhalation direction and block the exhaust hole (32).
6. An oral and nasal mask assembly for a ventilator according to claim 5, characterized in that: One end of the anti-peeping tongue (33) is movably connected to the inner wall of the tube body (31), and the anti-peeping tongue (33) fits the inner wall of the tube body (31) along the circumference of the tube body (31), and the shape of the exhaust hole (32) is adapted to the shape of the anti-peeping tongue (33).
7. An oral and nasal mask for a ventilator, characterized in that: include: A detachable bracket (10), a headband (20), and an oral and nasal mask assembly (30) according to any one of claims 1 to 6; The detachable bracket (10) is movably connected to the oronasal mask shell (2) of the oronasal mask assembly (30), and the headband (20) is connected to the detachable bracket (10) via a buckle; The headband (20) is used to fix the oral and nasal mask assembly (30) on the patient's mouth and nose.
8. An oronasal mask for a ventilator according to claim 7, characterized in that: The detachable bracket (10) is movably connected to the outer folding surface of the oronasal mask shell (2), and the outer folding surface is the side of the oronasal mask shell (2) facing the ventilation tube (3).
9. An oronasal mask for a ventilator according to claim 8, characterized in that: Magnetic clips are provided at the left and right ends of the outer folding surface of the oronasal mask shell (2), and magnetic fasteners (101) are provided at the left and right ends of the detachable bracket (10).
10. An oronasal mask for a ventilator according to claim 7, characterized in that: The detachable bracket (10) includes a nose gasket fixing belt (102) and a mouth gasket fixing belt (103); The nose gasket fixing belt (102) fits the upper edge of the outer folding surface of the oronasal mask shell (2), and the mouth gasket fixing belt (103) fits the lower edge of the outer folding surface of the oronasal mask shell (2).