Oxygen inhalation mask capable of adsorbing and detecting end-tidal carbon dioxide

Abstract

The invention relates to the technical field of oxygen inhalation masks, and discloses an oxygen inhalation mask capable of adsorbing and detecting end-tidal carbon dioxide, which comprises an oxygen inhalation mask body, the oxygen inhalation mask body is worn on the face of a patient through an elastic band, a nose bridge buckle opening is formed in the oxygen inhalation mask body, and the oxygen inhalation mask body is made of polyethylene. A sealing layer is arranged on the side, facing the skin, of the oxygen inhalation mask body, and an oxygen supply mechanism for providing breathing oxygen is arranged on the oxygen inhalation mask body. According to the breathing mask, the in-human sticky frame is stuck to the middle of a wearer, and the swing film arranged on the in-human sticky frame generates two different swing states during inspiration and exspiration, namely, during inspiration, the swing film is pressed downwards, and oxygen cannot be prevented from being inhaled into the nasal cavity; and during expiration, the swinging film jacks up and expands the opening, so that exhaled airflow can be completely contained in the sticking frame in the human body, and exhaled air cannot be leaked, thereby being beneficial to improving the accurate detection of end-expired carbon dioxide in the exhaled air.

Description

Technical Field

[0001] This invention relates to the field of oxygen inhalation mask technology, and more particularly to an oxygen inhalation mask that can adsorb and detect end-tidal carbon dioxide. Background Technology

[0002] This type of oxygen mask not only delivers oxygen to the wearer but also monitors the concentration of carbon dioxide exhaled by the wearer in real time. It also safely absorbs, processes, or diverts excess carbon dioxide to prevent re-inhalation. However, existing oxygen masks typically consist of a simple mask worn directly on the wearer's face, which usually presents the following problems: First, existing masks are simply fastened to the wearer's mouth and nose, with extremely simple openings for both oxygen intake and exhaust. This results in a large amount of exhaled air remaining inside the mask and failing to escape in time. Simultaneously, during exhalation, oxygen enters the mask and mixes with the remaining exhaled air. This mixture is inhaled by the wearer, and the exhaled air also carries the oxygen-mixed mixture, which interferes with the detection of end-tidal carbon dioxide. Secondly, regarding oxygen inhalation, current technology typically involves inserting an oxygen tube directly into the nasal cavity. While this effectively improves oxygen inhalation efficiency, it also causes discomfort, and the large amount of oxygen carried in the exhaled air can interfere with the detection.

[0003] To address this, we designed an oxygen mask that can adsorb and detect end-tidal carbon dioxide. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the prior art where a large amount of the exhaled airflow remains inside the mask and cannot be expelled from the mask in time; at the same time, during exhalation, oxygen enters the mask and mixes with the exhaled airflow remaining inside the mask. This mixed gas is inhaled by the wearer, and the exhaled air also carries the mixed gas containing the introduced oxygen, which interferes with the detection of end-tidal carbon dioxide. Therefore, this invention proposes an oxygen inhalation mask that can adsorb and detect end-tidal carbon dioxide.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An oxygen mask capable of adsorbing and detecting end-tidal carbon dioxide includes an oxygen mask body, which is worn on the patient's face via an elastic band. The oxygen mask body has a nose bridge buckle opening and is made of polyethylene. A sealing layer is provided on the side of the oxygen mask body facing the skin. An oxygen supply mechanism for providing breathing oxygen is provided on the oxygen mask body. An end-tidal carbon dioxide detector for detecting exhaled gas is also provided below the oxygen mask body. An exhalation bag assembly for collecting and guiding exhaled gas to the end-tidal carbon dioxide detector is also provided on the oxygen mask body.

[0006] Preferably, multiple oxygen supply mechanisms are provided and symmetrically arranged on the oxygen mask body. Each oxygen supply mechanism includes: The oxygen inlet pipe is connected to an external oxygen generator and is also connected to the oxygen mask body. A one-way valve assembly is installed inside the oxygen inlet pipe, and the flow direction of the one-way valve assembly is towards the oxygen mask body.

[0007] Preferably, a detection box body is provided below the oxygen mask body. The detection box body has a telescopic cavity and a placement cavity. The telescopic cavity and the placement cavity are coaxially arranged and are connected to the oxygen mask body.

[0008] Preferably, the inner wall of the telescopic cavity is provided with a plurality of first ventilation holes, and the plurality of first ventilation holes are arranged in a circumferentially at equal intervals. The first ventilation holes communicate with the outside through second ventilation holes, and the placement cavity communicates with the second ventilation holes. The end-tidal carbon dioxide detector is placed inside the placement cavity.

[0009] Preferably, a water-absorbing component slides inside the telescopic cavity, and the water-absorbing component includes a sliding cylinder and silicone. The sliding cylinder slides along the axis inside the telescopic cavity, and the top of the sliding cylinder has an opening through which the silicone fills the sliding cylinder.

[0010] Preferably, an installation plate is installed inside the telescopic cavity, and the installation plate is connected to the water absorption assembly via a return spring. A rubber ring is provided on the side wall of the installation plate, and the water absorption assembly blocks the connection of the first vent hole.

[0011] Preferably, the exhalation bag assembly includes a philtrum adhesive frame, the philtrum adhesive frame is made of polyethylene, and the side of the philtrum adhesive frame that is in close contact with the skin has an adhesive layer, and the philtrum adhesive frame is a U-shaped frame.

[0012] Preferably, the philtrum adhesive frame is provided with a swinging film, which is a non-breathable film and is fan-shaped. The swinging film is fixed on both sides of the top of the philtrum adhesive frame, which is a U-shaped frame.

[0013] Preferably, the space enclosed between the philtrum adhesive frame and the swinging film is connected to the telescopic cavity via a connecting hose, the connecting hose being made of elastic rubber.

[0014] Preferably, the philtrum adhesive bracket has an open-mouth rubber ring on the side facing the wearer, and the open-mouth rubber ring is in an flared state, and the open-mouth rubber ring is made of polyethylene.

[0015] The beneficial effects of this invention are as follows: 1. In this invention, the oxygen inlet pipe and one-way valve assembly connected to the oxygen mask body provide unidirectional oxygen flow into the oxygen mask body. In conjunction with the wearer's oxygen inhalation, the water-absorbing component blocks the first vent hole on the inner wall of the telescopic cavity, thus enabling oxygen inhalation. When the wearer exhales, the exhaled airflow pushes the water-absorbing component downwards, removing water vapor from the exhaled air, allowing the exhaled airflow to flow out from the first vent hole and be detected by the end-tidal carbon dioxide detector. This achieves independent operation of the separate channels for inhalation and exhalation, without mutual interference.

[0016] 2. In this invention, the philtrum adhesive frame is attached to the philtrum of the wearer, and the swinging film set on the philtrum adhesive frame produces two different swinging states during inhalation and exhalation. When inhaling, the swinging film is pressed down and does not obstruct oxygen from entering the nasal cavity; when exhaling, the swinging film is lifted up, widening the mouth opening, which can collect all the exhaled airflow into the philtrum adhesive frame and does not cause the exhaled gas to leak out. This is beneficial to improve the accurate detection of end-tidal carbon dioxide in the exhaled gas.

[0017] 3. In this invention, a philtrum adhesive frame is used to fit tightly against the wearer's nasal cavity, which can effectively reduce the long-term contact between exhaled air and the air inside the mask. This part of the exhaled air will be discharged from the first ventilation hole in a timely manner, minimizing the time it stays in the oxygen inhalation mask body, providing a closed area for the detection of end-tidal carbon dioxide, thereby improving the detection accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an oxygen mask that can adsorb and detect end-tidal carbon dioxide, as proposed in this invention. Figure 2 The left and right isometric views of an oxygen mask that can adsorb and detect end-tidal carbon dioxide according to the present invention. Figure 3 This is an isometric view of an oxygen mask that can adsorb and detect end-tidal carbon dioxide, as proposed in this invention. Figure 4 This is a partial sectional view of the upper and lower parts of an oxygen mask that can adsorb and detect end-tidal carbon dioxide, as proposed in this invention. Figure 5 This is a side sectional view of an oxygen mask that can adsorb and detect end-tidal carbon dioxide, as proposed in this invention. Figure 6 This is a partial cross-sectional view of the left and right sides of an oxygen mask that can adsorb and detect end-tidal carbon dioxide, as proposed in this invention. Figure 7 for Figure 6 Enlarged structural diagram at point A; Figure 8 This is a schematic diagram of the swinging state of the exhalation bag assembly in an oxygen mask that can adsorb and detect end-tidal carbon dioxide, as proposed in this invention. Figure 9 This is a front view of the exhalation bag assembly in an oxygen mask that can adsorb and detect end-tidal carbon dioxide, as proposed in this invention.

[0019] In the image: 1. Oxygen mask body; 2. Nose bridge buckle; 3. Oxygen inlet tube; 4. Detection box body; 5. Exhalation bag assembly; 51. Philtrum adhesive frame; 52. Mouth opening rubber ring; 53. Connecting hose; 54. Swinging membrane; 6. One-way valve assembly; 7. Telescopic chamber; 8. First vent; 9. Water intake assembly; 10. Second vent; 11. Installation chamber; 12. End-tidal carbon dioxide detector; 13. Mounting plate; 14. Return spring. Detailed Implementation

[0020] Reference Figures 1-9 An oxygen mask capable of adsorbing and detecting end-tidal carbon dioxide includes an oxygen mask body 1, which is worn on the patient's face via an elastic band. The oxygen mask body 1 has a nose bridge buckle opening 2. The elastic band is not shown in the figure. The two ends of the elastic band are symmetrically fixed to the outer side wall of the oxygen mask body 1. During use, the elastic band is simply wrapped around the wearer's head and then fastened to the wearer's nose bridge through the nose bridge buckle opening 2. Under the action of the elastic band, the oxygen mask body 1 covers the patient's face and fits tightly against the patient's mouth and nose. In this way, both the patient's oxygen inhalation and exhalation are carried out within the oxygen mask body 1 during use.

[0021] It should be noted that the oxygen mask body 1 is made of polyethylene, and the oxygen mask body 1 has a sealing layer on the side facing the skin. The sealing layer is located on the edge of the oxygen mask body 1, including the edge of the nose bridge buckle 2. This allows the oxygen mask body 1, with the sealing layer, to fit tightly against the wearer's face under the action of the elastic band, so that there will be no air leakage during breathing, which facilitates accurate detection of end-tidal carbon dioxide.

[0022] The oxygen mask body 1 is equipped with an oxygen supply mechanism that provides breathing oxygen. The oxygen supply mechanism is used to provide an oxygen source for the wearer. There are multiple oxygen supply mechanisms, which are symmetrically arranged on the oxygen mask body 1. The oxygen supply mechanism includes an oxygen inlet pipe 3, which is connected to an external oxygen generator and communicates with the oxygen mask body 1. A one-way valve assembly 6 is provided in the oxygen inlet pipe 3, and the flow direction of the one-way valve assembly 6 is towards the inside of the oxygen mask body 1. In this way, the oxygen generated by the external oxygen generator can be introduced into the one-way valve assembly 6 through the connected oxygen inlet pipe 3, and then enter the area covered by the oxygen mask body 1 after it is worn.

[0023] The one-way valve assembly 6 is designed to provide a passage for oxygen, but it does not allow the exhaled gas to enter the oxygen inlet pipe 3 in reverse through the one-way valve assembly 6 when the wearer exhales, thus ensuring accurate detection of the exhaled gas.

[0024] The oxygen mask body 1 is equipped with an end-tidal carbon dioxide detector 12 at the bottom to continuously monitor the patient's vital signs, which reflect the patient's ventilation function and circulatory status. During emergency treatment, transport, and anesthesia resuscitation, it can promptly detect critical situations such as respiratory depression, insufficient ventilation, misplacement of endotracheal tubes, and cardiac arrest. The end-tidal carbon dioxide detector 12 is existing technology and will not be elaborated on here.

[0025] The oxygen mask body 1 is also equipped with an exhalation bag assembly 5 that collects and guides exhaled gas to the end-tidal carbon dioxide detector 12. It should be noted that the exhalation bag assembly 5 is in close contact with the wearer's philtrum. The exhalation bag assembly 5 includes a philtrum adhesive frame 51, which is made of polyethylene. The philtrum adhesive frame 51 is made of flexible polyethylene, so that when the philtrum adhesive frame 51 is in close contact with the wearer's philtrum, it can adapt to the size of different wearers' philtrums, avoiding the discomfort caused by the rigid philtrum adhesive frame 51 when worn.

[0026] The philtrum adhesive bracket 51 has an adhesive layer on the side that is in close contact with the skin. Therefore, before putting the oxygen mask body 1 on the wearer, the adhesive layer in the philtrum adhesive bracket 51 should be facing the wearer and attached to the wearer's philtrum. Then the oxygen mask body 1 is placed over the wearer's face. This wearing method can effectively ensure that the philtrum adhesive bracket 51 is firmly attached to the wearer's face. The philtrum adhesive bracket 51 will first come into contact with the wearer's exhaled air, allowing the exhaled air to be tested to directly enter the exhalation bag assembly 5.

[0027] It should be noted that this method of directly collecting exhaled air from the wearer's nasal cavity can effectively reduce the long-term contact between exhaled air and the outside world, thereby avoiding the mixing of external air into the exhaled air and thus preventing deviations in the exhaled air detection. Therefore, this method can effectively improve the accuracy of detecting end-tidal carbon dioxide in exhaled air.

[0028] Furthermore, since the philtrum adhesive bracket 51 is tightly attached to the wearer's philtrum, it makes it difficult for the wearer's upper lip to move, which in turn makes it difficult for the patient to breathe through their mouth. This further inhibits the patient's mouth breathing and makes the wearer exhale through their nose, which can also improve the accuracy of detecting end-tidal carbon dioxide in the exhaled air.

[0029] Reference Figure 8 and Figure 9 In this configuration, the philtrum adhesive frame 51 is a U-shaped frame, and the lateral span of the philtrum adhesive frame 51 is longer than the span between the two sides of the wearer's nostrils. This allows all the exhaled air from the wearer's nasal cavity to be impacted in the philtrum adhesive frame 51, preventing the exhaled air from flowing out of the philtrum adhesive frame 51. This is beneficial for the collection of exhaled air from the wearer's nasal cavity.

[0030] The philtrum adhesive bracket 51 has an open-mouth rubber ring 52 on the side facing the wearer. The open-mouth rubber ring 52 is in a wide-open state and is made of polyethylene. The open-mouth rubber ring 52 is made of flexible polyethylene and is pressed tightly against the wearer's nose. This can effectively receive the air exhaled from the nasal cavity. At the same time, because the open-mouth rubber ring 52 is in a wide-open state, it can effectively receive the airflow exhaled from the nasal cavity. The wide-open state of the open-mouth rubber ring 52 also plays a role in guiding the airflow, that is, to gather the airflow and let the gathered airflow enter the philtrum adhesive bracket 51 through the open-mouth rubber ring 52.

[0031] It should be noted that when the exhaled airflow is gathered by the mouth-opening rubber ring 52, this gathered airflow will impact the swinging membrane 54, thereby blowing the swinging membrane 54, which was originally hanging down and attached to the inner wall of the philtrum adhesive frame 51, into expansion, thereby expanding the opening formed by the mouth-opening rubber ring 52 and the swinging membrane 54, so as to better collect the exhaled air from the nasal cavity.

[0032] The philtrum adhesive frame 51 is equipped with a swinging membrane 54, which is a non-breathable membrane. This prevents air leakage when airflow impacts the swinging membrane 54. The swinging membrane 54 is fan-shaped and fixed to both sides of the top of the U-shaped philtrum adhesive frame 51. Therefore, the swinging membrane 54 has two states for the wearer's inhalation and exhalation: One is the inhalation state. The oxygen entering the oxygen mask body 1 from the oxygen inlet pipe 3 is first exposed to the oscillating diaphragm 54 by the wearer's inhalation. (Refer to...) Figure 8 In this state, the oscillating membrane 54 is pressurized by the oxygen flow to the state shown by the dotted line in Figure 8. At this time, the oscillating membrane 54 will block most of the opening of the philtrum adhesive frame 51, while also providing a flow channel for oxygen flow to enter the nasal cavity.

[0033] Secondly, in the exhalation state, the airflow exhaled from the wearer's nasal cavity will first impact the open-mouth rubber ring 52 at the end of the philtrum adhesive frame 51, and then the airflow will be gathered by the open-mouth rubber ring 52. This gathered airflow will first impact both sides of the vertical swinging film 54, which can blow open the originally drooping swinging film 54. Thus, the swinging film 54, which was originally in a dotted line state, will be blown open to a real state. The opening formed by the swinging film 54 and the philtrum adhesive frame 51 in this state is larger, which is conducive to the widening and collection of exhaled air. At the same time, the swinging film 54 at this time will guide the exhaled airflow into the philtrum adhesive frame 51.

[0034] Therefore, as the wearer inhales and exhales, the position of the oscillating membrane 54 at the top of the philtrum adhesive frame 51 can be changed: Wearer's airflow inhalation: The swinging membrane 54 hangs down and blocks most of the opening end of the philtrum adhesive frame 51, while providing a flow channel for oxygen to flow into the wearer's nasal cavity. As the wearer inhales, the space inside the philtrum adhesive frame 51 tends to allow airflow into the wearer's nasal cavity. However, the presence of the water-absorbing component 9 and the blocking of the first vent 8 prevent external gas from entering the philtrum adhesive frame 51 through the first vent 8. Thus, the gas entering the wearer is solely from the oxygen blown in by the oxygen inlet tube 3. Exhaled airflow from the wearer: As the wearer exhales, the air is gathered by the open rubber ring 52 and impacts the drooping swinging membrane 54, causing the originally drooping swinging membrane 54 to be blown open, thereby expanding the collection diameter of the exhaled air. The space enclosed between the philtrum adhesive frame 51 and the swinging membrane 54 is connected to the telescopic cavity 7 through the connecting hose 53, which is made of elastic rubber. At the same time, this part of the exhaled air will impact the water absorption component 9 in the telescopic cavity 7 along with the connecting hose 53, which will then impact the water absorption component 9 to move downward in the telescopic cavity 7, thereby triggering subsequent linkage.

[0035] Reference Figures 5-7As shown in the diagram, a detection box body 4 is located below the oxygen mask body 1. The detection box body 4 has a telescopic cavity 7 and a placement cavity 11. The telescopic cavity 7 and the placement cavity 11 are coaxially arranged and communicate with the inside of the oxygen mask body 1. The telescopic cavity 7 and the placement cavity 11 are also connected. Due to the presence of the connecting hose 53, the telescopic cavity 7 communicates with the space enclosed between the philtrum adhesive frame 51 and the swinging membrane 54 through the connecting hose 53.

[0036] The exhaled airflow is slidable within the telescopic cavity 7. The air exhaled by the wearer first impacts the exhaled airflow through the connecting hose 53 onto the exhaled airflow 9. Then, the exhaled airflow slides down within the telescopic cavity 7, exposing the first vent 8 that was originally blocked by the exhaled airflow 9. Therefore, the exhaled airflow will first impact the exhaled airflow 9, causing the exhaled airflow 9 to move down and expose the first vent 8. Then, it enters the second vent 10 from the first vent 8 and is detected by the end-tidal carbon dioxide detector 12.

[0037] The water-absorbing component 9 includes a sliding cylinder and silicone. The sliding cylinder slides along the axis in the telescopic cavity 7, and the top of the sliding cylinder has an opening. The silicone fills the sliding cylinder through the opening. The silicone filled in the sliding cylinder is used to absorb the moisture in the wearer's exhaled air. This can remove the moisture in the wearer's exhaled air in time, and the moisture-removed exhaled air enters the first vent 8 after being dehumidified by the silicone.

[0038] Preferably, the side wall of the sliding cylinder has a plurality of circumferentially arranged ventilation holes. As the exhaled airflow impacts the sliding cylinder containing silica gel and moves the sliding cylinder downward, the ventilation holes on the side wall of the sliding cylinder are connected to the first ventilation hole 8. Therefore, after the exhaled airflow passes through the silica gel inside the sliding cylinder for dehumidification, it enters the first ventilation hole 8 through the ventilation holes on the side wall of the sliding cylinder, thereby realizing the dehumidification operation of the exhaled air.

[0039] It should be noted that an installation plate 13 is installed inside the telescopic cavity 7, and the installation plate 13 is connected to the water absorption component 9 through a return spring 14. A rubber ring is provided on the side wall of the installation plate 13. The water absorption component 9 blocks the connection of the first vent hole 8. The installation plate 13 is detachable, and the rubber ring increases friction and improves the installation stability of the installation plate 13. Due to the presence of the return spring 14, it can provide conditions for the water absorption component 9 to return and extend within the telescopic cavity 7. At the same time, during the process of disassembling the installation plate 13, it can pull the water absorption component 9 away from the telescopic cavity 7, thus realizing the disassembly and replacement of the water absorption component 9, so as to better absorb water vapor in the exhaled airflow.

[0040] The inner wall of the telescopic cavity 7 is provided with multiple first ventilation holes 8, which are arranged in an equidistant circle. The first ventilation holes 8 communicate with the outside through second ventilation holes 10, and the placement cavity 11 is connected to the second ventilation holes 10. The end-tidal carbon dioxide detector 12 is installed in the placement cavity 11. Therefore, the end-tidal carbon dioxide detector 12 enters the placement cavity 11 from the first ventilation hole 8 through the second ventilation hole 10 and detects the specific parameters of the exhaled end-tidal carbon dioxide. The end-tidal carbon dioxide detector is a tool for monitoring life from a gas perspective. It is a device for continuously and non-invasively measuring the concentration or partial pressure of carbon dioxide in the patient's exhaled air. It provides not only ventilation indicators, but also a window into perfusion and metabolism. In modern clinical practice, it has been regarded as a core vital sign monitoring method as important as electrocardiogram and blood oxygen saturation. It is a key line of defense for improving patient safety, especially airway and respiratory safety.

[0041] The working principle of this invention is as follows: Before putting the oxygen mask body 1 on the wearer, the adhesive layer in the philtrum adhesive bracket 51 should be facing the wearer and attached to the wearer's philtrum, so that the mouth opening rubber ring 52 is pressed tightly against the wearer's nose, which can effectively receive the air exhaled from the nasal cavity. Then, the oxygen mask body 1 is worn on the patient's face through the elastic band, and then fastened to the wearer's nose bridge through the nose bridge buckle 2. Under the action of the elastic band, the oxygen mask body 1 covers the patient's face and fits tightly against the patient's mouth and nose. The sealing layer is set at the edge of the oxygen mask body 1, including the edge of the nose bridge buckle 2. In this way, under the action of the elastic band, the oxygen mask body 1 with the sealing layer fits tightly against the wearer's face, so there will be no air leakage during breathing, which facilitates the accurate detection of end-tidal carbon dioxide. The oxygen inlet pipe 3 is connected to the oxygen mask body 1. A one-way valve assembly 6 is installed inside the oxygen inlet pipe 3, and the flow direction of the one-way valve assembly 6 is towards the inside of the oxygen mask body 1. This allows the oxygen generated in the external oxygen generator to be introduced into the area covered by the oxygen mask body 1 after it is worn through the connected oxygen inlet pipe 3. The adhesive frame 51 is a U-shaped frame, and the lateral span of the philtrum adhesive frame 51 is longer than the span between the two sides of the wearer's nostrils. This allows all the exhaled air from the wearer's nasal cavity to be impacted in the philtrum adhesive frame 51, preventing the exhaled air from flowing out of the philtrum adhesive frame 51. This is beneficial for the collection of exhaled air from the wearer's nasal cavity. When the wearer inhales, the swinging membrane 54 droops and blocks most of the opening end of the philtrum adhesive frame 51, while providing a flow channel for oxygen to flow into the wearer's nasal cavity. When the wearer exhales, the exhaled air is gathered by the opening rubber ring 52 and impacts the drooping swinging membrane 54, blowing and expanding the originally drooping swinging membrane 54, thereby increasing the collection diameter of exhaled air. This part of the exhaled air will impact the water absorption component 9 in the telescopic cavity 7 along with the connecting hose 53, which will in turn impact the water absorption component 9 to move downward in the telescopic cavity 7. After the exhaled airflow passes through the silica gel in the sliding cylinder for dehumidification, it enters the first vent 8 through the vent hole on the side wall of the sliding cylinder, thereby realizing the dehumidification operation of the exhaled air. Finally, it enters the end-tidal carbon dioxide detector 12 in the placement cavity 11 through the second vent 10 from the first vent 8 to detect the specific parameters of the exhaled end-tidal carbon dioxide.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An oxygen mask capable of adsorbing and detecting end-tidal carbon dioxide, comprising an oxygen mask body (1), the oxygen mask body (1) being worn on a patient's face via an elastic band, characterized in that, The oxygen mask body (1) has a nose bridge buckle opening (2). The oxygen mask body (1) is made of polyethylene. The oxygen mask body (1) has a sealing layer on the side facing the skin. The oxygen mask body (1) has an oxygen supply mechanism to provide breathing oxygen. The oxygen mask body (1) also has an end-tidal carbon dioxide detector (12) for detecting exhaled gas below it. The oxygen mask body (1) also has an exhalation bag assembly (5) that collects and guides exhaled gas to the end-tidal carbon dioxide detector (12).

2. The oxygen mask for adsorbing and detecting end-tidal carbon dioxide according to claim 1, characterized in that, Multiple oxygen supply mechanisms are provided and symmetrically arranged on the oxygen mask body (1). The oxygen supply mechanisms include: The oxygen inlet pipe (3) is connected to an external oxygen generator and is connected to the oxygen mask body (1). A one-way valve assembly (6) is installed inside the oxygen inlet pipe (3), and the flow direction of the one-way valve assembly (6) is towards the oxygen mask body (1).

3. The oxygen mask for adsorbing and detecting end-tidal carbon dioxide according to claim 1, characterized in that, The oxygen mask body (1) is provided with a detection box body (4) below it. The detection box body (4) is provided with a telescopic cavity (7) and a placement cavity (11). The telescopic cavity (7) and the placement cavity (11) are coaxially arranged, and the telescopic cavity (7) is connected to the oxygen mask body (1). The telescopic cavity (7) is connected to the placement cavity (11).

4. An oxygen mask capable of adsorbing and detecting end-tidal carbon dioxide according to claim 3, characterized in that, The inner wall of the telescopic cavity (7) is provided with multiple first ventilation holes (8), and the multiple first ventilation holes (8) are arranged in an equidistant circle. The first ventilation holes (8) are connected to the outside through the second ventilation hole (10), and the placement cavity (11) is connected to the second ventilation hole (10). The end-tidal carbon dioxide detector (12) is placed in the placement cavity (11).

5. An oxygen mask for adsorbing and detecting end-tidal carbon dioxide according to claim 3, characterized in that, A water-absorbing component (9) slides inside the telescopic cavity (7), and the water-absorbing component (9) includes a sliding cylinder and silicone. The sliding cylinder slides along the axis inside the telescopic cavity (7), and the top of the sliding cylinder has an opening through which the silicone fills the sliding cylinder.

6. An oxygen mask capable of adsorbing and detecting end-tidal carbon dioxide according to claim 3, characterized in that, An installation plate (13) is installed inside the telescopic cavity (7), and the installation plate (13) is connected to the water absorption assembly (9) through a return spring (14). A rubber ring is provided on the side wall of the installation plate (13), and the water absorption assembly (9) blocks the connection of the first vent (8).

7. An oxygen mask for adsorbing and detecting end-tidal carbon dioxide according to claim 3, characterized in that, The exhalation bag assembly (5) includes a philtrum adhesive frame (51), which is made of polyethylene and has an adhesive layer on the side of the philtrum adhesive frame (51) that is in close contact with the skin. The philtrum adhesive frame (51) is a U-shaped frame.

8. An oxygen mask for adsorbing and detecting end-tidal carbon dioxide according to claim 7, characterized in that, A swinging film (54) is provided on the philtrum adhesive frame (51). The swinging film (54) is a non-breathable film and is fan-shaped. The swinging film (54) is fixed on both sides of the top of the philtrum adhesive frame (51) which is a U-shaped frame.

9. An oxygen mask for adsorbing and detecting end-tidal carbon dioxide according to claim 8, characterized in that, The space enclosed between the philtrum adhesive frame (51) and the swinging membrane (54) is connected to the telescopic cavity (7) through a connecting hose (53), which is made of elastic rubber.

10. An oxygen mask for adsorbing and detecting end-tidal carbon dioxide according to claim 9, characterized in that, The philtrum adhesive bracket (51) has an open-mouth rubber ring (52) on the side facing the wearer, and the open-mouth rubber ring (52) is in an flared state. The open-mouth rubber ring (52) is made of polyethylene.

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