Nose pillow and mask assembly for breathing machine and nose pillow and mask

Abstract

The utility model relates to a nose pillow mask assembly for a breathing machine and a nose pillow mask. The nose pillow mask assembly comprises a nose mask shell, a nose pad and a breather pipe. The nose pad and the breather pipe are arranged on the two sides of the nose mask shell in the exhaust direction. An exhaust cavity is formed in the nose mask shell, and the nose pad and the breather pipe are communicated with the exhaust cavity; n strip-shaped exhaust holes are formed in the nose mask shell; the N strip-shaped exhaust holes are formed around the pipe opening of the ventilation pipe. One end of the strip-shaped exhaust hole is communicated with the exhaust cavity, and the other end of the strip-shaped exhaust hole is communicated with the outside of the nose mask shell. On one hand, the nose is provided with N strip-shaped exhaust holes, the exhaust flow is increased, the exhaust flow speed is reduced, and then the exhaust holes are arranged to be strip-shaped surrounding the pipe opening of the vent pipe. Therefore, when carbon dioxide circulates, the flow speed of the carbon dioxide is slowed down after pressure relief of the exhaust cavity and the N strip-shaped exhaust holes, the shapes of the strip-shaped exhaust holes can make airflow more disordered, the speed of the airflow rubbing the air holes is reduced, and exhaust noise can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of respiratory masks, in particular to a nasal pillow mask assembly for a respirator and a nasal pillow mask. BACKGROUND

[0002] A respirator is a medical device used to assist or replace the natural breathing process of a person to treat respiratory insufficiency or other related diseases. The working principle of a respirator is to generate positive pressure during inhalation to press the gas into the lungs of a patient, and then to discharge the gas through the elastic recoil force of the chest and lungs of the patient during exhalation.

[0003] A respirator needs to supply gas to a patient through a respiratory mask. The ventilation pipe 13 of the respiratory mask is connected to the respirator, and the mask body seals the patient's mouth and nose. When the patient inhales, oxygen is pumped into the respiratory mask and then enters the patient's respiratory tract. When the patient exhales, the exhaust hole on the respiratory mask discharges carbon dioxide.

[0004] The existing respiratory mask has a circular hole array as the exhaust hole. When the patient exhales, the gas flowing through the exhaust hole has a high flow rate, resulting in loud exhaust noise. In order to reduce the exhaust noise of the respiratory mask, the present application provides a nasal pillow mask assembly for a respirator and a nasal pillow mask. CONTENT OF THE INVENTION

[0005] To overcome the problems in the related art, the present application provides a nasal pillow mask assembly for a respirator, which comprises a nasal mask shell, a nasal pad, and a ventilation pipe. The nasal pad and the ventilation pipe are arranged on both sides of the nasal mask shell in the exhaust direction. An exhaust cavity is formed in the nasal mask shell, and the nasal pad and the ventilation pipe communicate with the exhaust cavity. N strip-shaped exhaust holes are formed on the nasal mask shell, where N is an integer greater than or equal to 1. The N strip-shaped exhaust holes are arranged around the pipe opening of the ventilation pipe. One end of the strip-shaped exhaust hole communicates with the exhaust cavity, and the other end of the strip-shaped exhaust hole communicates with the outside of the nasal mask shell.

[0006] In an embodiment, the ventilation pipe is connected to the center line of the nasal mask shell.

[0007] In an embodiment, a gas flow baffle is arranged on the exhaust end of the strip-shaped exhaust hole. The gas flow baffle is arranged on the nasal mask shell and is a circular ring around the pipe opening of the ventilation pipe.

[0008] In an embodiment, the nasal pad is made of a flexible material.

[0009] In an embodiment, the nasal pad is provided with through holes at both ends in the exhaust direction. A nasal plug protrusion is arranged between the two through holes of the nasal pad, and the nasal plug protrusion abuts against the inner wall of the nasal cavity in a direction perpendicular to the exhaust direction.

[0010] In one embodiment, the through hole of the nasal pad is oval.

[0011] In one embodiment, the vent pipe and the nasal mask shell are rotationally connected.

[0012] The second aspect of the present application provides a nasal pillow mask for a breathing machine, comprising a fixing belt, a connecting piece and a nasal pillow mask assembly; two connecting pieces are respectively installed at the left and right ends of the nasal pillow mask assembly; and the two ends of the fixing belt are movably connected to each connecting piece.

[0013] In one embodiment, the fixing belt comprises a first fixing sub-belt and a second fixing sub-belt; a tension buckle is arranged on each of the first fixing sub-belt and the second fixing sub-belt, and the first fixing sub-belt and the second fixing sub-belt are used to adjust the size of the fixing belt.

[0014] The technical solution provided by the present application can include the following beneficial effects:

[0015] The nasal pillow mask assembly and the nasal pillow mask of the present application are provided with N strip-shaped exhaust holes on one side, which increases the exhaust flow rate and reduces the exhaust flow speed. In addition, the exhaust holes are arranged in the form of a strip around the vent pipe opening. Therefore, when carbon dioxide flows, the flow speed is reduced after pressure relief through the exhaust cavity and the N strip-shaped exhaust holes. In addition, the shape of the strip-shaped exhaust holes can make the airflow more turbulent, reduce the speed of airflow friction with the exhaust holes, and effectively reduce the generation of exhaust noise.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the different views of the drawings.

[0018] Figure 1 FIG. 1 is a perspective view of a nasal pillow mask assembly according to an embodiment of the present application;

[0019] Figure 2 FIG. 3 is a sectional view of region A of the nasal pillow mask assembly according to the embodiment of the present application;

[0020] Figure 3 FIG. 4 is a front view of the nasal pillow mask assembly according to the embodiment of the present application;

[0021] Figure 4 FIG. 5 is a sectional view of region A of the nasal pillow mask assembly according to the embodiment of the present application;

[0022] Figure 5 A three-dimensional structure diagram of a nasal pillow face mask according to an embodiment of the present application is shown in the following figure;

[0023] The figure caption is as follows: nasal mask shell 11, nose pad 12, exhaust cavity 121, strip-shaped exhaust hole 122, ventilation tube 13, nasal plug protrusion 131, nasal pillow face mask assembly 1, connecting piece 2, fixing belt 3. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present application will be described in more detail by referring to the attached drawings. Although the preferred embodiments of the present application are shown in the 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. On the contrary, 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.

[0025] The terms used in the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.

[0026] It should be understood that although the terms "first", "second", "third" and the like can be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present application. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0027] Embodiment one

[0028] The existing breathing mask has a circular hole array as the exhaust hole. When the patient exhales, the gas flow rate through the exhaust hole is fast, resulting in large exhaust noise.

[0029] In order to reduce the exhaust noise of the breathing mask, the present application provides a nasal pillow face mask assembly for a breathing machine, as shown in Figure 1 which comprises a nasal mask shell 11, a nose pad 12 and a ventilation tube 13.

[0030] Among them, the nose pad 12 and the ventilation tube 13 are arranged on both sides of the nasal mask shell 11 along the exhaust direction.

[0031] In the application embodiment, the ventilation tube 13 is connected to a breathing machine, and the breathing machine supplies oxygen through the ventilation tube 13. The nose pad 12 is inserted into the human nasal cavity to input oxygen into the nasal cavity.

[0032] In the A area of Figure 1 , a cross section is taken along the C-C direction to obtain a partial cross-sectional view as shown in Figure 3 . Figure 2 and Figure 4 .

[0033] Further, as shown in the partial structure view of the A area of Figure 2 , the nose mask shell 11 is provided with an exhaust cavity 121, and the nose pad 12 and the ventilation tube 13 are communicated with the exhaust cavity 121.

[0034] In the application embodiment, when the human body exhales carbon dioxide, the carbon dioxide first enters the exhaust cavity 121, and then is discharged from the exhaust hole on the nose mask shell 11. Since the size of the exhaust hole is small, the exhaust speed is smaller than the speed of the human body exhaled gas. Therefore, the application embodiment is provided with the exhaust cavity 121 to accommodate the carbon dioxide exhaled by the human body at high speed, and then release the carbon dioxide through the exhaust hole. The exhaust cavity 121 can effectively prevent the air pressure in the nose mask shell 11 from being too large, which causes the nose pad 12 of the nose pillow mask to fall out of the nasal cavity.

[0035] In the existing nose pillow mask, a circular exhaust hole is provided on the nose mask shell 11 for discharging carbon dioxide. When the gas flows through the circular exhaust hole, the circular exhaust hole will vibrate to produce exhaust noise similar to a flute.

[0036] The application embodiment improves the shape of the exhaust hole of the nose pillow mask to reduce the human body exhaust noise.

[0037] Further, as shown in Figure 2 , the nose mask shell 11 is provided with N strip-shaped exhaust holes 122, and N is an integer greater than or equal to 1. One end of the strip-shaped exhaust hole 122 is communicated with the exhaust cavity 121, and the other end of the strip-shaped exhaust hole is communicated to the outside of the nose mask shell 11.

[0038] As shown in Figure 2 , the N strip-shaped exhaust holes 122 are arranged around the pipe opening of the ventilation tube 13.

[0039] Specifically, one end of the ventilation tube 13 is connected to a breathing machine, and the other end is connected to the nose mask shell 11. N strip-shaped exhaust holes are arranged around the pipe opening of the pipe opening where the ventilation tube 13 and the nose mask shell 11 are connected. The hole axis cross section of the strip-shaped exhaust hole is a sector, and the N strip-shaped exhaust holes surround the ventilation tube 13.

[0040] The embodiment of the present application sets N strip-shaped exhaust holes on one side to increase the exhaust flow and reduce the exhaust flow rate. The strip-shaped exhaust holes are arranged around the pipe opening of the ventilation pipe 13. Therefore, when carbon dioxide flows, the pressure is released through the exhaust cavity 121 and the N strip-shaped exhaust holes, and the flow rate slows down. The strip-shaped exhaust holes can make the airflow more turbulent and reduce the airflow friction speed. Therefore, the present application can effectively reduce the generation of exhaust noise.

[0041] Embodiment two

[0042] Based on embodiment one, the embodiment of the present application provides another nasal pillow mask assembly for a respirator, which comprises a nasal mask shell 11, a nasal pad 12, and a ventilation pipe 13. The structure of the nasal mask shell 11, the nasal pad 12, and the ventilation pipe 13 is consistent with that of embodiment one.

[0043] Further, the axial cross section of the strip-shaped exhaust hole 122 is a sector.

[0044] The existing exhaust hole is arranged on the side of the nasal mask shell 11 and is not blocked. When the patient exhales, the exhaust hole directly opposite the side will affect the sleep of the companion.

[0045] In the embodiment of the present application, as shown in the front view of Figure 3 , the ventilation pipe 13 is connected to the center line of the nasal mask shell 11. Therefore, the strip-shaped exhaust hole is arranged in the middle of the nasal mask shell 11 around the pipe opening of the ventilation pipe 13, and faces the front. When the patient exhales, the gas is discharged from the front of the nasal mask shell 11, preventing the companion on the side from being affected.

[0046] Further, the exhaust end of the strip-shaped exhaust hole is covered with an airflow baffle 123. As shown in Figure 2 , the airflow baffle 123 is arranged on the nasal mask shell 11, and the airflow baffle 123 is a circular ring around the pipe opening of the ventilation pipe 13.

[0047] In the embodiment of the present application, the airflow baffle 123 can increase the sealing performance of the nasal pillow mask assembly 1, preventing the nasal pillow mask assembly 1 from being insufficiently sealed due to the excessive size of the strip-shaped exhaust hole.

[0048] In order to improve the sealing performance between the nasal pad 12 and the nasal cavity, further, as shown in the A area partial perspective view of Figure 4 , the nasal pad 12 is made of flexible material. The two ends of the nasal pad 12 along the exhaust direction are respectively provided with through holes; a nasal plug protrusion 131 is arranged between the two through holes of the nasal pad 12, and the nasal plug protrusion 131 abuts against the inner wall of the nasal cavity along the direction perpendicular to the exhaust direction. The through hole of the nasal pad 12 is elliptical.

[0049] In the embodiments of the present application, after the nasal pad 12 is inserted into the nasal cavity, the nasal plug 131 on the nasal pad 12 can abut against the inner wall of the nasal cavity, thereby increasing the air tightness between the nasal pad 12 and the nasal cavity.

[0050] Preferably, in order to facilitate the connection of the ventilation tube 13 to the breathing machine, the ventilation tube 13 and the nasal mask shell 11 are rotationally connected. The ventilation tube 13 can rotate around the tube opening, and the orientation of the ventilation tube 13 can be adjusted to connect to the breathing machine placed in different positions.

[0051] Embodiment Three

[0052] Based on the nasal pillow face mask assembly of Embodiment One and Embodiment Two, the present application provides a nasal pillow face mask for a breathing machine, as shown in Figure 5 The nasal pillow face mask includes a fixing belt 3, a connecting piece 2, and the nasal pillow face mask assembly 1 of Embodiment One or Two.

[0053] In the nasal pillow face mask, two connecting pieces 2 are respectively installed at the left and right ends of the nasal pillow face mask assembly 1; and the two ends of the fixing belt 3 are respectively movably connected to each connecting piece 2.

[0054] Further, the fixing belt 3 includes a first fixing sub-belt and a second fixing sub-belt; and a tension buckle is respectively arranged on the first fixing sub-belt and the second fixing sub-belt, and the first fixing sub-belt and the second fixing sub-belt are used to adjust the size of the fixing belt 3.

[0055] In the embodiments of the present application, after the nasal pillow face mask assembly 1 is connected to the nasal cavity of the patient and the breathing machine, the fixing belt 3 is worn on the head of the patient, and the size is adjusted by the tension buckle to complete the fixation.

[0056] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical applications, or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. A nasal pillow mask assembly for a ventilator, characterized by, The nasal mask assembly (1) comprises: a nasal mask shell (11), a nasal pad (12), and a ventilation pipe (13); the nasal pad (12) and the ventilation pipe (13) are arranged on both sides of the nasal mask shell (11) in the exhaust direction; an exhaust cavity (121) is arranged in the nasal mask shell (11), and the nasal pad (12) and the ventilation pipe (13) are communicated with the exhaust cavity (121); N strip-shaped exhaust holes (122) are arranged on the nasal mask shell (11), N is an integer greater than or equal to 1; the N strip-shaped exhaust holes (122) are arranged around the pipe opening of the ventilation pipe (13); one end of the strip-shaped exhaust hole (122) is communicated with the exhaust cavity (121), and the other end of the strip-shaped exhaust hole is communicated to the outside of the nasal mask shell (11).

2. A nasal pillow mask assembly for a ventilator according to claim 1, wherein, The ventilation pipe (13) is connected to the center line of the nasal mask shell (11).

3. A nasal pillow mask assembly for a ventilator according to claim 1, wherein, The exhaust end of the strip-shaped exhaust hole is covered with an air flow baffle (123); the air flow baffle (123) is arranged on the nasal mask shell (11), and the air flow baffle (123) is a circular ring around the pipe opening of the ventilation pipe (13).

4. A nasal pillow mask assembly for a ventilator according to claim 1, wherein, The nasal pad (12) is made of flexible material.

5. A nasal pillow mask assembly for a ventilator according to claim 4, wherein, The nasal pad (12) is provided with through holes at both ends in the exhaust direction; a nasal plug protrusion (131) is arranged between the two through holes of the nasal pad (12), and the nasal plug protrusion (131) abuts against the inner wall of the nasal cavity in a direction perpendicular to the exhaust direction.

6. A nasal pillow mask assembly for a ventilator according to claim 1, wherein, The through hole of the nasal pad (12) is elliptical.

7. A nasal pillow mask assembly for a ventilator according to claim 1, wherein, The ventilation pipe (13) and the nasal mask shell (11) are rotationally connected.

8. A nasal pillow mask for a ventilator, characterized in that, The nasal pillow face mask assembly (1) comprises: a fixing belt (3), a connecting piece (2), and the nasal pillow face mask assembly (1) of any one of claims 1 to 7; two connecting pieces (2) are respectively arranged at the left and right ends of the nasal pillow face mask assembly (1); the two ends of the fixing belt (3) are movably connected to the respective connecting pieces (2).

9. A nasal pillow mask for a ventilator as defined in claim 8, wherein, The fixing belt (3) comprises a first fixing sub-belt and a second fixing sub-belt; tension buckles are respectively arranged on the first fixing sub-belt and the second fixing sub-belt, and the first fixing sub-belt and the second fixing sub-belt are used for adjusting the size of the fixing belt (3).

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