Dual-purpose nasal oxygen cannula

Abstract

The utility model belongs to the field of medical instruments, and relates to a dual-purpose nasal oxygen cannula which comprises a nasal oxygen cannula body, a nasal plug is arranged at one end of the nasal oxygen cannula body, and a first nasal oxygen cannula branch communicated with a common oxygen humidification bottle and a second nasal oxygen cannula branch communicated with a high-flow oxygen therapy machine are arranged on the side, away from the nasal plug, of the nasal oxygen cannula body. The first nasal oxygen cannula branch and the second nasal oxygen cannula branch are connected in parallel and are communicated with the nasal oxygen cannula; the first nasal oxygen cannula branch and the second nasal oxygen cannula branch are respectively provided with an anti-backflow device. The utility model aims to solve the problem that in the whole treatment process of a patient, no matter what oxygen therapy mode is used, only one nasal oxygen tube is needed and does not need to be replaced, so that the workload of medical personnel is reduced, and the economical efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of medical devices and relates to a dual-purpose nasal oxygen tube. Background Art

[0002] Nasal oxygen inhalation is a commonly used medical technique with wide applications. Currently, it is divided into two methods. One is low-flow oxygen inhalation (flow rate is lower than 15 liters per minute, no special equipment is required, and the nasal oxygen tube is connected to an oxygen humidifying bottle), and the other is high-flow oxygen therapy (flow rate is 15 - 90 liters per minute, special equipment is required, and the nasal oxygen tube needs to be connected to the equipment).

[0003] Existing nasal oxygen tubes are single-purpose, and there is no nasal oxygen tube that can be connected to both an oxygen humidifying bottle and a high-flow oxygen therapy device. At different stages of a patient's treatment, different oxygen inhalation methods are required. Currently, only one or more oxygen inhalation tubes are used, which increases the workload of medical staff and is uneconomical.

[0004] In addition, when a patient is receiving low-flow oxygen inhalation, sometimes the patient's respiration needs to be monitored. However, existing nasal oxygen tubes can usually only supply oxygen and cannot collect the patient's exhaled gas. At this time, an additional nasal tube or oral tube needs to be inserted into the patient to collect the exhaled gas, which increases the workload of medical staff and also increases the consumables. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a dual-purpose nasal oxygen tube that can be connected to both an oxygen humidifying bottle and a high-flow oxygen therapy device.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A dual-purpose nasal oxygen tube includes a nasal oxygen tube. One end of the nasal oxygen tube is provided with a nasal plug. On the side far from the nasal plug, there are respectively a first nasal oxygen tube branch connected to a common oxygen humidifying bottle and a second nasal oxygen tube branch connected to a high-flow oxygen therapy machine. The first nasal oxygen tube branch and the second nasal oxygen tube branch are in parallel and connected to the nasal oxygen tube; anti-backflow devices are respectively arranged on the first nasal oxygen tube branch and the second nasal oxygen tube branch.

[0007] Optionally, the anti-backflow device is a clip arranged on the first nasal oxygen tube branch and a plug arranged on the second nasal oxygen tube branch.

[0008] Optionally, the plug is arranged at the interface between the end of the second nasal oxygen tube branch and the breathing machine corrugated tube.

[0009] Optionally, the nasal plug includes a sleeve, two oxygen supply tubes, and two exhaled gas collection tubes. A partition is arranged in the sleeve to form two non-communicating first cavities and second cavities, and the first cavity and the second cavity have an overlapping part in the length direction of the sleeve;

[0010] The oxygen supply tube and the exhaled gas collection tube are respectively installed on the first cavity and the second cavity and are correspondingly connected. The installation positions of the two oxygen supply tubes on the first cavity respectively correspond to two nostrils, and the installation position of the exhaled gas collection tube corresponds to the oxygen supply tube one by one and is arranged adjacent to each other, so that the installation positions of the two exhaled gas collection tubes respectively correspond to two nostrils;

[0011] One end of the first cavity is connected to a nasal oxygen tube, so that the oxygen supply tube is communicated with the first nasal oxygen tube branch and the second nasal oxygen tube branch, and one end of the second cavity is connected to an exhaled gas monitoring tube, so that the exhaled gas collection tube is communicated with the exhaled gas monitoring tube.

[0012] Optionally, the length of the exhaled gas collection tube is greater than the length of the oxygen supply tube, so that the length of the exhaled gas collection tube inserted into the nostril is greater than the length of the oxygen supply tube inserted into the nostril.

[0013] Optionally, the difference in length between the exhaled gas collection tube and the oxygen supply tube is 3-5 cm.

[0014] Optionally, a second clip is further provided on the exhaled gas monitoring tube to prevent the backflow of oxygen when the exhaled gas monitoring tube is in a deactivated state.

[0015] The beneficial effects of the present utility model are as follows: A dual-purpose nasal oxygen tube of the present utility model aims to solve the problem that during the entire treatment process of a patient, regardless of the oxygen therapy method used, only one nasal oxygen tube is required without replacement, thereby reducing the workload of medical staff and improving economy.

[0016] Secondly, by optimizing the structure of the nasal plug, the present utility model sets the nasal plug as a structure form in which a sleeve is used in combination with an exhaled gas collection tube and an oxygen supply tube, so that the two pipelines in the nasal plug, one is used to supply oxygen to the patient, and the other is used to collect the exhaled gas of the patient. Furthermore, through this nasal oxygen tube, the respiratory monitoring requirements during low-flow oxygen inhalation of the patient are taken into account, playing the role of multi-purpose use of one tube, further reducing the workload of medical staff and improving economy.

[0017] Other advantages, objectives and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following description. Description of the Drawings

[0018] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be described in detail preferably with reference to the accompanying drawings, where:

[0019] Figure 1Schematic diagram of the overall structure of Specific Embodiment 1 of the present utility model;

[0020] Figure 2 Schematic diagram of the overall structure of Specific Embodiment 2 of the present utility model;

[0021] Figure 3 is Figure 2 partial enlarged view at position A in;

[0022] Figure 4 Schematic cross-sectional structure diagram of the nasal plug (Z-shaped separator);

[0023] Figure 5 Schematic cross-sectional structure diagram of the nasal plug (parallel long plate separator).

[0024] Reference numerals: nasal oxygen tube 1, nasal plug 2, first nasal oxygen tube branch 3, second nasal oxygen tube branch 4, first clip 5, interface 6, exhaled gas monitoring tube 7, second clip 8, oxygen supply tube 21, exhaled gas collection tube 22, first cavity 23, second cavity 24, separator 25, sleeve 26. Specific embodiments

[0025] The following uses specific specific examples to illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0026] Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as limitations on the present utility model; in order to better illustrate the embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, and do not represent the dimensions of actual products; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] In the drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation to the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. Specific Embodiment 1

[0029] Please refer to Figure 1 , which is a dual-purpose nasal oxygen tube, including a nasal oxygen tube 1. One end of the nasal oxygen tube 1 is provided with a nasal plug 2. On the side away from the nasal plug 2, a first nasal oxygen tube branch 3 connected to a common oxygen humidifying bottle and a second nasal oxygen tube branch 4 connected to a high-flow oxygen therapy machine are respectively provided. The first nasal oxygen tube branch 3 and the second nasal oxygen tube branch 4 are connected in parallel and communicate with the nasal oxygen tube 1; anti-backflow devices are also respectively provided on the first nasal oxygen tube branch 3 and the second nasal oxygen tube branch 4.

[0030] In this embodiment, the anti-backflow device is a first clip 5 provided on the first nasal oxygen tube branch 3 and a plug provided on the second nasal oxygen tube branch 4. The plug is provided at the interface 6 between the end of the second nasal oxygen tube branch 4 and the breathing machine corrugated tube.

[0031] In this embodiment, the pipeline is clamped by the first clip 5 to prevent backflow. At the same time, when the second nasal oxygen tube branch 4 is not in use, the plug is inserted into the end to effectively prevent backflow.

[0032] The usage method of the dual-purpose nasal oxygen tube is as follows:

[0033] First, insert the nasal plug into the patient's nostril to facilitate oxygen supply to the patient;

[0034] Low-flow oxygen inhalation: Usually, the nasal oxygen inhalation of the patient is low-flow oxygen inhalation. At this time, disconnect the second nasal oxygen tube branch 4 from the high-flow oxygen therapy machine and insert a plug at the interface 6 to close the second nasal oxygen tube branch 4; connect the first nasal oxygen tube branch 3 to the common oxygen humidifying bottle and open the first clip 5 to form a low-flow oxygen inhalation path for the dual-purpose nasal oxygen tube;

[0035] High-flow oxygen therapy: At this time, remove the plug at the interface 6 and connect the second nasal oxygen tube branch 4 to the high-flow oxygen therapy machine to connect the second nasal oxygen tube branch 4 to the nasal plug. Close the first clip 5 to close the first nasal oxygen tube branch 3 to form a high-flow oxygen inhalation path for the dual-purpose nasal oxygen tube.

[0036] Specifically, the first nasal oxygen tube branch 3 is a PE round tube with an inner diameter of 4 mm, and the second nasal oxygen tube branch 4 is a corrugated tube with an inner diameter of 21 mm. Specific Embodiment 2

[0038] Please refer to Figures 2 to 4 , the difference between this embodiment and Specific Embodiment 1 is that in this embodiment, the nasal plug includes a sleeve 26, two oxygen supply tubes 21, and two exhaled breath collection tubes 22;

[0039] Both ends of the sleeve 26 are open, and a partition piece 25 is provided in the middle to form two non - communicating first cavities 23 and second cavities 24, and both the first cavity 23 and the second cavity 24 have one end open; preferably, in this embodiment, the partition piece 25 is set as a Z - shaped partition piece to form the structures of the first cavity 23 and the second cavity 24 as shown in Figure 4 .

[0040] The oxygen supply tubes 21 and the exhaled breath collection tubes 22 are respectively installed on the first cavity and the second cavity and are correspondingly connected, and the oxygen supply tubes and the exhaled breath collection tubes are in one - to - one correspondence and are arranged adjacent to each other, so that after a combination of an oxygen supply tube and an exhaled breath collection tube is inserted into the same nostril, and then after the two oxygen supply tubes 21 and the two exhaled breath collection tubes 22 are correspondingly combined, they are respectively inserted into the two nostrils;

[0041] Specifically, the adjacent - arranged oxygen supply tube and exhaled breath collection tube are adjacent. In this embodiment, an adhesive fixing form can be adopted; in other embodiments, an adjacent but non - adhesive form can also be adopted, or they can be set as two non - communicating but integrally formed parallel pipelines.

[0042] The opening of the first cavity 23 is connected to the nasal oxygen tube 1, so that the oxygen supply tube 21 is connected to the first nasal oxygen tube branch 3 and the second nasal oxygen tube branch 4 through the nasal oxygen tube 1, and the opening of the second cavity 24 is connected to the exhaled breath monitoring tube 7, so that the exhaled breath collection tube 22 is connected to the exhaled breath monitoring tube 7.

[0043] Specifically, the port of the exhaled breath monitoring tube 7 is connected to a respiratory monitor to monitor the patient's breathing; the specific monitoring method can select a carbon dioxide respiratory monitor.

[0044] Optionally, the length of the exhaled breath collection tube 22 is greater than the length of the oxygen supply tube 21, so that the length of the exhaled breath collection tube 22 inserted into the nostril is greater than the length of the oxygen supply tube 21 inserted into the nostril.

[0045] Preferably, in this embodiment, the difference in length between the exhaled breath collection tube 22 and the oxygen supply tube is 3 to 5 cm. When the patient exhales, the exhaled breath will first contact the exhaled breath collection tube and enter the exhaled breath collection tube and then into the analysis chamber of the exhaled breath monitor under the suction of the air pump in the exhaled breath monitor. The exhaled breath monitor analyzes the carbon dioxide concentration and its changes in the collected gas. By the periodic change of the curve of the carbon dioxide concentration, the breathing frequency and amplitude of the patient can be monitored. By setting the difference in length between the exhaled breath collection tube 22 and the oxygen supply tube to 3 to 5 cm, the length of the exhaled breath collection tube 22 inserted into the nostril is greater than the length of the oxygen supply tube 21 inserted into the nostril, thereby reducing the interference of the gas filled into the nostril in the oxygen supply tube 21 on the gas collected by the exhaled breath collection tube 22, and thus improving the accuracy of subsequent breathing monitoring.

[0046] Optionally, a second clip 8 is further provided on the exhaled breath monitoring tube 7 to prevent the backflow of oxygen when the exhaled breath monitoring tube 7 is in a deactivated state.

[0047] In another embodiment, the separator can also be set to other shapes, as long as it can satisfy separating the sleeve 26 into two non-communicating first cavity 23 and second cavity 24, and the first cavity 23 and the second cavity 24 have overlapping parts in the length direction of the sleeve, so that the oxygen supply tube 21 and the exhaled breath collection tube 22 respectively installed on the first cavity and the second cavity can be adjacently arranged.

[0048] As Figure 5 shown, the separator is a parallel long plate separator, which separates the sleeve 26 into two non-communicating and parallelly arranged first cavity 23 and second cavity 24, and partially closes the openings at both ends of the sleeve 26 in cooperation with the parallel long plate separator, so that the first cavity 23 and the second cavity 24 form a cavity with one end open (respectively used to realize the connection between the first cavity 23 and the nasal oxygen tube 1, and the connection between the second cavity 24 and the exhaled breath monitoring tube 7), so as to realize the adjacent arrangement of the oxygen supply tube 21 and the exhaled breath collection tube 22, and realize the synchronous supply of oxygen and collection of exhaled breath.

[0049] The usage method of this dual-purpose nasal oxygen tube is as follows:

[0050] First, insert the nasal plug into the patient's nostril to facilitate oxygen supply to the patient;

[0051] Low-flow oxygen inhalation: Usually, the patient's nasal oxygen inhalation is low-flow oxygen inhalation. At this time, disconnect the second nasal oxygen tube branch 4 from the high-flow oxygen therapy machine and insert a plug at the interface 6 to close the second nasal oxygen tube branch 4; connect the first nasal oxygen tube branch 3 to the ordinary oxygen humidifying bottle and open the first clip 5 to connect the first nasal oxygen tube branch 3 with the oxygen supply tube 21, so that this dual-purpose nasal oxygen tube forms a low-flow oxygen inhalation passage;

[0052] Open the second clip 8 to connect the exhaled gas collection tube 22 with the exhaled gas monitoring tube 7, and then monitor the patient's respiration through a respiration monitoring instrument connected to the interface of the exhaled gas monitoring tube 7.

[0053] High-flow oxygen therapy: At this time, remove the plug at the interface 6 and connect the second nasal oxygen tube branch 4 to a high-flow oxygen therapy machine so that the second nasal oxygen tube branch 4 is connected to the nasal cannula. Close the first clip 5 to close the first nasal oxygen tube branch 3, so that the dual-purpose nasal oxygen tube forms a high-flow oxygen inhalation path.

[0054] Close the second clip 8 to seal the exhaled gas collection tube 22 and the exhaled gas monitoring tube 7, thereby preventing oxygen from flowing back from the exhaled gas collection tube 22.

[0055] Specifically, the working principles of the exhaled gas collection tube 22 and the exhaled gas monitoring tube 7 are as follows:

[0056] Generally, an air extraction pump is provided at the port of the exhaled gas monitoring tube 7 or in the respiration monitoring instrument to collect the exhaled gas of the patient by the exhaled gas collection tube 22 and send the collected exhaled gas into the respiration monitoring instrument for monitoring to form a monitoring report, thereby achieving the purpose of monitoring the patient's respiration;

[0057] For example, carbon dioxide respiration monitoring is to monitor the carbon dioxide concentration and periodic changes in the patient's exhaled gas to reflect important vital signs such as the patient's respiration rate, amplitude, and overall metabolic conditions. By setting the difference in length between the exhaled gas collection tube 22 and the oxygen supply tube 21 to 3 - 5 cm and sending the exhaled gas sampling tube deeper into the nasal cavity, it is beneficial to more accurately collect the patient's exhaled gas, reduce the dilution of the exhaled gas by oxygen from the oxygen supply tube source, peripheral air, etc., and the interference with the carbon dioxide concentration monitoring, thereby achieving more stable and accurate monitoring. The experimental data is as follows in the table:

[0058] Table 1 Success rate (%) of obtaining a stable carbon dioxide concentration curve at different length differences and different oxygen supply flow rates

[0059]

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A dual-purpose nasal oxygen tube, characterized in that: It includes a nasal oxygen tube. One end of the nasal oxygen tube is provided with a nasal plug. On the side away from the nasal plug, there are respectively a first nasal oxygen tube branch connected to a common oxygen humidifying bottle and a second nasal oxygen tube branch connected to a high-flow oxygen therapy machine. The first nasal oxygen tube branch and the second nasal oxygen tube branch are in parallel and connected to the nasal oxygen tube. Anti-backflow devices are also respectively provided on the first nasal oxygen tube branch and the second nasal oxygen tube branch.

2. The dual-purpose nasal oxygen tube according to claim 1, characterized in that: The anti-backflow device is a first clip provided on the first nasal oxygen tube branch and a plug provided on the second nasal oxygen tube branch.

3. The dual-purpose nasal oxygen tube according to claim 2, characterized in that: The plug is provided at the interface between the end of the second nasal oxygen tube branch and the breathing machine corrugated tube.

4. The dual-purpose nasal oxygen tube according to claim 1, characterized in that: The nasal plug includes a sleeve, two oxygen supply tubes and two exhaled gas collection tubes. A partition is provided in the sleeve to form two non-communicating first cavities and second cavities, and the first cavity and the second cavity have an overlapping part in the length direction of the sleeve. The oxygen supply tubes and the exhaled gas collection tubes are respectively installed on the first cavity and the second cavity and are correspondingly connected. The installation positions of the two oxygen supply tubes on the first cavity respectively correspond to two nostrils, and the installation positions of the exhaled gas collection tubes are in one-to-one correspondence with the oxygen supply tubes and are arranged adjacent to each other, so that the installation positions of the two exhaled gas collection tubes respectively correspond to two nostrils. One end of the first cavity is connected to the nasal oxygen tube, so that the oxygen supply tube is connected to the first nasal oxygen tube branch and the second nasal oxygen tube branch, and one end of the second cavity is connected to the exhaled gas monitoring tube, so that the exhaled gas collection tube is connected to the exhaled gas monitoring tube.

5. The dual-purpose nasal oxygen tube according to claim 4, characterized in that: The length of the exhaled gas collection tube is greater than the length of the oxygen supply tube, so that the length of the exhaled gas collection tube inserted into the nostril is greater than the length of the oxygen supply tube inserted into the nostril.

6. The dual-purpose nasal oxygen tube according to claim 5, characterized in that: The difference in length between the exhaled gas collection tube and the oxygen supply tube is 3 - 5 cm.

7. The dual-purpose nasal oxygen tube according to claim 4, characterized in that: A second clip is also provided on the exhaled gas monitoring tube to prevent oxygen backflow when the exhaled gas monitoring tube is in a deactivated state.

Images