Respiration monitoring nasal mask

Abstract

The utility model discloses a breathing monitoring nasal mask which comprises a mask body, a filter layer, a breathing bag and a fixing band. The edge of the mask body is used for being attached to the face skin around the nose of a patient so that the nose of the patient can be covered with the mask body. The mask body is provided with an air exchange port and an oxygen catheter connector. The filter layer is mounted at the scavenging port and is used for filtering inhaled gas and absorbing moisture in exhaled gas while ventilating. The oxygen catheter connector is used for being connected with an oxygen catheter so as to introduce oxygen into the mask body. The breathing bag is provided with a first port and a second port, and the first port is connected with the outer wall of the mask body and is opposite to the ventilation port. The fixing band is connected with the cover body and used for fixing the cover body to the head of a patient. Compared with the prior art, the breathing bag expands and contracts along with breathing of a patient, and therefore the breathing frequency, the breathing amplitude and the change of the breathing frequency and the breathing amplitude of the patient can be visually reflected. The convenience of clinical monitoring is improved, the treatment cost is reduced, and the economic burden of a patient is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen inhalation nasal masks, in particular to a respiratory monitoring nasal mask. Background Art

[0002] Oxygen inhalation is a commonly used treatment method in clinical practice. Common non-invasive oxygen inhalation methods include nasal catheter oxygen inhalation, mask oxygen inhalation and nasal mask oxygen inhalation. For nasal mask oxygen inhalation, the patent with authorization announcement number CN 220175809 U discloses a respiratory nasal mask with a V-shaped groove on the silicone pad to reduce pressure on the bridge of the nose. However, the respiratory nasal mask cannot directly display the patient's breathing condition. To solve this technical problem, there are a few nasal masks on the market that have integrated interfaces for connecting end-tidal carbon dioxide, but this type of monitoring must be used in conjunction with expensive monitors and has not been widely used in clinical practice. Utility Model Content

[0003] The utility model aims to provide a respiratory monitoring nasal mask which can display the respiratory condition of a patient without using a monitor, so as to reduce the treatment cost.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a respiratory monitoring nasal mask, comprising:

[0006] A mask body, the edge of which is used to adhere to the facial skin around the patient's nose; the mask body is provided with a ventilation port and an oxygen supply tube interface;

[0007] A filter layer, which is installed at the ventilation port and is used to filter the inhaled gas and absorb moisture in the exhaled gas while allowing ventilation;

[0008] A breathing bag, the breathing bag having a first port and a second port, the first port being connected to the outer wall of the mask body and opposite to the ventilation port; the breathing bag being able to float synchronously with the patient's breathing to display the patient's breathing condition;

[0009] A fixing belt is connected to the mask body and is used to fix the mask body on the patient's head.

[0010] Preferably, there are two oxygen supply tube interfaces, which are located on the mask body at a position close to the left nostril and a position close to the right nostril respectively.

[0011] Preferably, the respiratory monitoring nasal mask also includes an oxygen supply tube, which includes a main tube, a first branch tube and a second branch tube; the first end of the main tube is used to connect to the oxygen supply equipment, the second end of the main tube is respectively connected to the first end of the first branch tube and the first end of the second branch tube, and the second end of the first branch tube and the second end of the second branch tube are each connected to one of the oxygen supply tube interfaces.

[0012] Preferably, the fixing strap comprises a left strap body, a right strap body, an upper strap body and a lower strap body; the front end of the left strap body is connected to the left part of the cover body, and the front end of the right strap body is connected to the right part of the cover body; the rear end of the left strap body is respectively connected to the left end of the upper strap body and the left end of the lower strap body; the rear end of the right strap body is respectively connected to the right end of the upper strap body and the right end of the lower strap body; the upper strap body is used to bypass the back of the patient's head from the upper side of the patient's ear, and the lower strap body is used to bypass the back of the patient's head from the lower side of the patient's ear.

[0013] Preferably, the fixing belt is an elastic fixing belt.

[0014] Preferably, the portion of the mask body edge that contacts the patient's facial skin is a silicone pad.

[0015] Preferably, the mask body is provided with an end-tidal carbon dioxide interface, which is used to connect to a monitor; the respiratory monitoring nasal mask also includes a plug, which is detachably installed at the end-tidal carbon dioxide interface.

[0016] Preferably, the plug is threadedly connected to the end-tidal carbon dioxide interface.

[0017] Preferably, the filter layer is a polypropylene fiber breathable material layer.

[0018] Preferably, the breathing bag is made of polyethylene or polypropylene.

[0019] Compared with the prior art, the utility model has achieved the following technical effects:

[0020] 1. The breathing bag expands as the patient exhales and contracts as the patient inhales, so it can intuitively reflect the patient's breathing frequency and amplitude and their changes. It not only improves the convenience of clinical monitoring, but also reduces treatment costs and alleviates the financial burden on patients.

[0021] 2. The mask only covers the nose but not the mouth, so the patient can speak and eat freely without being restricted by the mask.

[0022] 3. In the preferred embodiment of the utility model, the filter layer is a polypropylene fiber breathable material, which can not only filter pathogens and dust, but also absorb moisture and sweat, thereby solving the problem that the water mist generated during breathing accumulates on the inner wall of the breathing bag and causes the breathing bag to adhere.

[0023] 4. In the preferred embodiment of the present invention, the oxygen supply tube interface is located on both sides of the mask body close to the patient's nostrils, and does not blow directly into the nasal cavity, thereby avoiding discomfort or even damage to the nasal mucosa.

[0024] 5. In the preferred embodiment of the present invention, by integrating the end-tidal carbon dioxide interface, the end-tidal carbon dioxide can also be monitored under the condition of having a corresponding monitor, and the scope of application is wider.

[0025] 6. In the preferred embodiment of the present invention, the fixing belt is divided into two parts in front of the ear when worn, and the fixing belt can be limited by the ear, thereby improving the fixing effect of the mask body.

[0026] 7. In the preferred embodiment of the present invention, a non-inflatable silicone pad is provided at the edge of the mask body, and the contact area with the facial skin is larger than that of an inflatable silicone pad, thereby reducing the pressure at the contact part and improving the wearing comfort of the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of a respiratory monitoring nasal mask from one perspective according to an embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the respiratory monitoring nasal mask from another perspective according to an embodiment of the utility model.

[0030] Description of reference numerals: 1-second port; 2-silicone pad; 3-filter layer; 4-mask body; 5-end-tidal carbon dioxide interface; 6-fixing belt; 7-first branch pipe; 8-fixing belt ear; 9-breathing bag; 10-main pipe; DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that the words used in this embodiment to indicate direction are based on the patient's own sense of direction when wearing a respiratory monitoring nasal mask. Figure 1 The upper side in the figure is the upper side of the patient. Figure 1 The left side in is the patient's right side, i.e. Figure 1 To face the patient's direction. Figure 2 The right side in the figure is the upper side of the patient. Figure 2 The upper side in is the front side of the patient, that is, Figure 2 The direction to look sideways at the patient.

[0033] Reference Figure 1 , Figure 2 This embodiment provides a respiratory monitoring nasal mask, including a mask body 4, a filter layer 3, a breathing bag 9 and a fixing belt 6.

[0034] The edge of the mask body 4 is used to be attached to the facial skin around the patient's nose to cover the patient's nose. Specifically, the area covered by the edge of the mask body 4 includes the upper part of the bridge of the nose, the nasolabial grooves on both sides, and the philtrum. The mask body 4 is provided with a ventilation port and an oxygen supply tube interface. The filter layer 3 is installed at the ventilation port, and is used to filter the inhaled gas and absorb the moisture in the exhaled gas while ventilating. The oxygen supply tube interface is used to connect the oxygen supply tube to pass oxygen into the mask body 4. The breathing bag 9 is used as a gas channel, which has a first port and a second port 1, and the first port is connected (for example, bonded) to the outer wall of the mask body 4 and opposite to the ventilation port. The breathing bag 9 is a thin plastic film with deformation ability, and only one end is fixed. When the patient exhales, the exhaled gas blows the breathing bag 9 from the filter layer 3. When the patient inhales, the breathing bag 9 covers the filter layer 3. The fixing belt 6 is connected to the mask body 4, and is used to fix the mask body 4 on the patient's head.

[0035] The working principle of the breathing monitoring nasal mask in this embodiment is as follows:

[0036] When the patient exhales, the breathing bag 9 is blown up. When the patient inhales, the breathing bag 9 is adsorbed on the filter layer 3. Therefore, the breathing bag 9 can float synchronously with the patient's breathing to display the patient's breathing situation. By observing the shape change of the breathing bag 9, medical staff can know the patient's breathing rhythm.

[0037] In addition, when the breathing rhythm remains unchanged, when the outflow rate at the filter layer 3 is large, the breathing bag 9 is blown up quickly and at a higher height. When the inflow rate at the filter layer 3 is large, the falling speed of the breathing bag 9 is faster. Therefore, by observing the speed of shape change of the breathing bag 9, medical staff can assist in understanding the changes in the patient's ventilation volume.

[0038] The respiratory monitoring nasal mask of this embodiment can display the patient's respiratory condition without the aid of a monitor, which not only improves the convenience of clinical monitoring, but also reduces the cost of treatment and alleviates the financial burden on patients.

[0039] As a possible example, in this embodiment, there are two oxygen supply tube interfaces, which are respectively located near the left nostril and the right nostril on the mask body 4. By arranging the oxygen supply tube interface near the nostril, oxygen is first inhaled into the nasal cavity by the patient after entering the mask body 4, reducing the amount of oxygen that directly leaves the mask body 4 from the filter layer 3, thereby improving the utilization rate of oxygen. In addition, the oxygen supply tube interface in this embodiment is close to the nostril rather than facing the nostril, avoiding discomfort or even damage to the patient's nasal mucosa caused by oxygen blowing directly into the nasal cavity.

[0040] As a possible example, in this embodiment, the respiratory monitoring nasal mask also includes an oxygen supply tube, which includes a main tube 10, a first branch tube 7, and a second branch tube. The first end of the main tube 10 is used to connect the oxygen supply device, the second end of the main tube 10 is respectively connected to the first end of the first branch tube 7 and the first end of the second branch tube, and the second end of the first branch tube 7 and the second end of the second branch tube are respectively connected to an oxygen supply tube interface. That is, the oxygen supply tube used in this embodiment is a three-way tube. According to different actual needs, those skilled in the art can also use two separate oxygen supply tubes to supply oxygen to the two oxygen supply tube interfaces respectively.

[0041] As a possible example, in the present embodiment, the fixing belt 6 includes a left belt body, a right belt body, an upper belt body and a lower belt body. The front end of the left belt body is connected to the left part of the cover body 4, and the front end of the right belt body is connected to the right part of the cover body 4. The rear end of the left belt body is respectively connected to the left end of the upper belt body and the left end of the lower belt body. The rear end of the right belt body is respectively connected to the right end of the upper belt body and the right end of the lower belt body. The upper belt body is used to bypass the back of the patient's head from the upper side of the patient's ear, and the lower belt body is used to bypass the back of the patient's head from the lower side of the patient's ear. Through the limiting effect of the patient's ear on the fixing belt 6, the position of the fixing belt 6 can be kept stable, thereby preventing the cover body 4 from shifting or falling off. The fixing belt hanging ears 8 are set on both sides of the cover body 4, and the fixing belt hanging ear 8 on the left side is used to connect the front end of the left belt body, and the fixing belt hanging ear 8 on the right side is used to connect the front end of the right belt body.

[0042] As a possible example, in this embodiment, the fixing belt 6 is an elastic fixing belt to improve the adaptability to head circumferences of different sizes.

[0043] As a possible example, in this embodiment, the portion of the edge of the mask body 4 that contacts the patient's facial skin is a silicone pad 2. The silicone pad 2 here is preferably a non-inflatable silicone pad to increase the contact area with the patient's facial skin and reduce the pressure at the contact position, thereby improving the patient's wearing comfort.

[0044] As a possible example, in the present embodiment, the mask body 4 is provided with a carbon dioxide end interface 5, which is used to connect a monitor. The respiratory monitoring nasal mask also includes a plug, which is detachably mounted at the carbon dioxide end interface 5. After the plug is removed from the carbon dioxide detection port, the carbon dioxide end interface 5 can be connected to the monitor through a ventilator, so that the patient's breathing condition can be displayed by the monitoring of carbon dioxide end by the monitor. It should be noted that the respiratory monitoring nasal mask of the present embodiment can be connected to a monitor (when the patient's breathing condition needs to be accurately measured), or it can be disconnected from the monitor, and those skilled in the art can select according to actual needs. Exemplary, the carbon dioxide end interface 5 can be arranged at a position near the bridge of the nose on the upper part of the mask body 4.

[0045] As a possible example, in this embodiment, the plug is threadedly connected to the end-tidal carbon dioxide interface 5 to improve the fixing firmness of the plug and prevent the plug from being lost due to falling.

[0046] It should be noted that when there are too many droplets adhering to the inner wall of the breathing bag 9, the breathing bag 9 is not easy to float due to the increased weight, and may even stick to the filter layer 3. As a possible example, in this embodiment, the filter layer 3 is a polypropylene fiber breathable material layer. Polypropylene fiber has a large specific surface area, a small pore size, and a high porosity. It not only has good water absorption performance, but also dries quickly. Under the premise of ensuring unobstructed breathing, it can not only filter pathogens and dust, but also absorb moisture and sweat, so as to prevent the breathing bag 9 from sticking to the filter layer 3 after getting wet.

[0047] As a possible example, in this embodiment, the breathing bag 9 is made of polyethylene or polypropylene to obtain a thin plastic film similar to a plastic bag, so that it floats better with the patient's breathing. In addition, the mask body 4 of this embodiment can also be made of polyethylene or polypropylene. According to different actual needs, those skilled in the art can also choose breathing bags 9 and mask bodies 4 of other materials.

[0048] As a possible example, in this embodiment, refer to Figure 2 The cross-sectional area of ​​the breathing bag 9 gradually decreases from the first port to the second port. In addition, the breathing bag 9 is formed by splicing multiple parts. According to different actual needs, those skilled in the art can also choose breathing bags 9 of other shapes.

[0049] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A respiratory monitoring nasal mask, characterized in that: include: A mask body, the edge of which is used to adhere to the facial skin around the patient's nose; The cover body is provided with a ventilation port and an oxygen supply tube interface; A filter layer, which is installed at the ventilation port and is used to filter the inhaled gas and absorb moisture in the exhaled gas while allowing ventilation; A breathing bag, the breathing bag having a first port and a second port, the first port being connected to the outer wall of the mask body and opposite to the ventilation port; the breathing bag being able to float synchronously with the patient's breathing to display the patient's breathing condition; A fixing belt is connected to the mask body and is used to fix the mask body on the patient's head.

2. The respiratory monitoring nasal mask according to claim 1, characterized in that: There are two oxygen supply tube interfaces, which are respectively located on the mask body near the left nostril and the right nostril.

3. The respiratory monitoring nasal mask according to claim 2, characterized in that: It also includes an oxygen supply pipe, which includes a main pipe, a first branch pipe and a second branch pipe; the first end of the main pipe is used to connect to the oxygen supply equipment, the second end of the main pipe is respectively connected to the first end of the first branch pipe and the first end of the second branch pipe, and the second end of the first branch pipe and the second end of the second branch pipe are each connected to one of the oxygen supply pipe interfaces.

4. The respiratory monitoring nasal mask according to claim 1, characterized in that: The fixing belt comprises a left belt body, a right belt body, an upper belt body and a lower belt body; the front end of the left belt body is connected to the left part of the cover body, and the front end of the right belt body is connected to the right part of the cover body; the rear end of the left belt body is respectively connected to the left end of the upper belt body and the left end of the lower belt body; the rear end of the right belt body is respectively connected to the right end of the upper belt body and the right end of the lower belt body; the upper belt body is used to bypass the back of the patient's head from the upper side of the patient's ear, and the lower belt body is used to bypass the back of the patient's head from the lower side of the patient's ear.

5. The respiratory monitoring nasal mask according to claim 1, characterized in that: The fixing belt is an elastic fixing belt.

6. The respiratory monitoring nasal mask according to claim 1, characterized in that: The portion of the mask body edge that contacts the patient's facial skin is a silicone pad.

7. The respiratory monitoring nasal mask according to claim 1, characterized in that: The mask body is provided with an end-tidal carbon dioxide interface, which is used to connect to a monitor; the respiratory monitoring nasal mask also includes a plug, which is detachably installed at the end-tidal carbon dioxide interface.

8. The respiratory monitoring nasal mask according to claim 7, characterized in that: The plug is threadedly connected to the end-tidal carbon dioxide interface.

9. The respiratory monitoring nasal mask according to claim 1, characterized in that: The filter layer is a polypropylene fiber breathable material layer.

10. The respiratory monitoring nasal mask according to claim 1, characterized in that: The breathing bag is made of polyethylene or polypropylene.

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