Gas supply connection, gas supply device and measuring system

Abstract

This utility model relates to the field of medical device technology, and discloses a gas supply connector, a gas supply device, and a measurement system. The gas supply connector includes an exhalation tube, a gas supply unit, an outer tube, and an inner tube. A tube-in-tube structure is formed by placing the inner tube inside the outer tube. One end of the inner tube is connected to the exhalation tube, and the other end is connected to the detection unit. One end of the outer tube is connected to the gas supply unit, and the other end is connected to a gas source. Based on this, the gas supply connector can detect the amount of gas supplied to the patient and the content of the patient's exhaled gas. Compared to the parallel arrangement of the oxygen supply tube and the collection tube in related technologies, the tube-in-tube structure design in this embodiment reduces the space occupied by the gas supply connector, as the space occupied by the inner and outer tubes is only the space occupied by the outer tube. This also avoids the situation in related technologies where the gas supply connector exerts pressure on the patient's upper lip, thereby improving the patient's comfort when using the gas supply connector.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an air supply connector, an air supply device, and a measurement system. Background Technology

[0002] With advancements in medical technology, oxygen therapy using oxygen inhalation devices is now widely used in clinical departments, emergency rooms, operating rooms, and intensive care units. Furthermore, monitoring end-tidal carbon dioxide can provide early warning of some sudden illnesses, such as pulmonary embolism, amniotic fluid embolism, cardiac arrest, upper airway obstruction, and bronchial asthma. Therefore, existing oxygen inhalation devices have incorporated end-tidal carbon dioxide monitoring. Specifically, oxygen inhalation devices include:

[0003] Nasal oxygen cannula, equipped with oxygen supply hole and installation hole;

[0004] The oxygen supply tube has one end inside the nasal oxygen tube and is connected to the oxygen supply hole, and the other end extends out of the nasal oxygen tube and is connected to the oxygen source. It is used to supply oxygen to the oxygen supply hole and increase the oxygen concentration in the air around the patient's nostrils.

[0005] The collection tube is located outside the nasal oxygen tube. One end of the collection tube is connected to the mounting hole, and the other end of the collection tube is placed inside the patient's nostril to collect the patient's exhaled gas.

[0006] The connecting tube has one end inside the nasal oxygen tube and is connected to the collection tube, while the other end of the connecting tube extends out of the nasal oxygen tube.

[0007] The detection unit, connected to the other end of the connecting tube, is used to detect the amount of carbon dioxide exhaled by the patient.

[0008] However, during use, it was found that compared to conventional nasal oxygen tubes, nasal oxygen tubes with both oxygen supply and collection tubes require an increased inner diameter, resulting in increased space required for the tube. For patients with a smaller space between the nostrils and the upper lip, the nasal oxygen tube may end up being placed on the upper lip, causing pressure and discomfort. Utility Model Content

[0009] In view of this, the present invention provides an air supply connector, an air supply device, and a measuring system to solve the problem that, compared with conventional nasal oxygen tubes, nasal oxygen tubes that simultaneously set up an oxygen supply tube and a collection tube require an increased inner diameter, resulting in an increased space required for the nasal oxygen tube. For patients with a small space between the lower nostril and the upper lip, the nasal oxygen tube may be placed at the patient's upper lip, causing pressure on the patient's upper lip and resulting in discomfort.

[0010] In a first aspect, this utility model provides a gas supply connector, comprising:

[0011] The exhalation tube is provided at least two at intervals, and each exhalation tube has a first channel inside. One end of the first channel is used to be placed at the position of each nostril of the patient, and the other end of the first channel is used to communicate with a detection unit that can detect the content of the patient's exhaled gas.

[0012] The air supply unit has a second channel inside. One end of the second channel is connected to a gas source, which is used to provide the patient with the required breathing gas. The other end of the second channel is used to be placed at the patient's nostrils to supply air to the patient.

[0013] The outer tube has a first communicating cavity inside, one end of which is connected to the gas source, and the side of which is connected to the gas supply unit.

[0014] An inner tube extends parallel to the outer tube. One end of the inner tube is placed inside the first connecting cavity. The outer surface of the inner tube is spaced apart from the inner surface of the outer tube to form a tube-in-tube structure. The spaced area is called the interval area, which is used to allow gas from the gas source to enter the gas supply unit. The inner tube has a second connecting cavity inside. The second connecting cavity is not connected to the first connecting cavity and is sealed at one end of the inner tube. The side of the second connecting cavity is connected to the exhalation tube, and the other end of the second connecting cavity is connected to the detection unit, so that the exhaled gas enters the detection unit through the exhalation tube and the second connecting cavity.

[0015] Beneficial Effects: By placing the inner tube inside the outer tube, a tube-within-a-tube structure is formed. One end of the inner tube connects to the exhalation tube, and the other end connects to the detection unit. One end of the outer tube connects to the air supply unit, and the other end connects to the gas source. Based on this, the air supply connector can detect the amount of air supplied to the patient and the content of the patient's exhaled air. Compared to the parallel arrangement of the oxygen supply tube and the collection tube in related technologies, the tube-within-a-tube structure of this invention reduces the space occupied by the inner and outer tubes to that occupied by the outer tube, thereby reducing the space occupied by the air supply connector. This reduces the limitations of the air supply connector on the usage environment and avoids the situation in related technologies where the air supply connector exerts pressure on the patient's upper lip, thus improving the patient's comfort when using the air supply connector.

[0016] In one alternative embodiment, the other end of the exhalation tube is further configured to communicate with a monitoring unit, which is used to monitor the pressure within the exhalation tube.

[0017] And / or, the gas supply unit is a connecting hole provided on the outer pipe, the connecting hole being used as the second channel.

[0018] Beneficial effects: By incorporating a monitoring unit, excessively rapid expiratory airflow within the expiratory tube can be prevented, thus avoiding breathing difficulties or respiratory discomfort for the patient and improving the comfort of using the air supply connector. Simultaneously, the monitoring unit can also detect pressure within the expiratory tube to determine if it is bent, or if there is nasal obstruction or upper airway obstruction, thereby enhancing the effectiveness of patient health monitoring.

[0019] By limiting the gas supply unit to a connecting hole, no additional piping is required, thus simplifying the structural complexity of the oxygen supply connector.

[0020] In one optional implementation, the gas supply unit is provided in multiple locations;

[0021] And / or, the gas supply unit is rectangular.

[0022] Beneficial effects: By defining multiple connecting holes, the air around the patient's nose is filled with oxygen. This means that even though the air supply unit is located at each of the patient's nostrils without being placed inside the nostrils, the patient can still breathe oxygen. The oxygen absorption effect of the air supply unit located at each nostril is the same as that of the unit placed inside the nostrils. Simultaneously, it improves oxygen dispersion, ensuring that oxygen is evenly distributed throughout the patient's nostrils, achieving uniform oxygen delivery and thus enhancing the patient's comfort during oxygen therapy.

[0023] By defining the connecting hole as a rectangle, the connection between the connecting hole and the interval area can be maximized, increasing the area for oxygen release. This achieves the technical effect of increasing the oxygen concentration near the patient's nostrils, thereby improving the reliability of oxygen supply to the patient.

[0024] In one alternative embodiment, the air supply unit is disposed around the exhalation tube;

[0025] And / or, the spacing between adjacent connecting holes is the same, so that the connecting holes can supply oxygen uniformly.

[0026] Beneficial effects: By limiting the arrangement of connecting holes around the gas supply unit and ensuring that the spacing between adjacent connecting holes is the same, the oxygen concentration around the patient is made the same, further improving the uniformity of oxygen supply and thus achieving the technical effect of ensuring the reliability of oxygen supply to the patient.

[0027] In one optional embodiment, the outer tube includes a mounting portion and a connecting portion, with both ends of the mounting portion communicating with the connecting portion respectively. The mounting portion is used to connect with the exhalation tube and the air supply unit, and the connecting portion is used to communicate with the outside.

[0028] And / or, the gas supply connector includes:

[0029] A positioning unit is located on the side of the outer tube and is used to fit against the skin below the patient's nostrils.

[0030] Beneficial effects: By defining the air supply connector, including the positioning unit, so that the positioning unit can cooperate with the exhalation tube to form a triangle, the air supply connector can be stably attached to the skin below the patient's nostrils, thereby improving the technical effect of improving the reliability of the air supply connector.

[0031] In one optional embodiment, the radial dimension of the connecting portion is smaller than the radial dimension of the mounting portion;

[0032] And / or, the outer tube comprises:

[0033] A sealing part is provided between the connecting part near the other end of the inner tube and the outer surface of the inner tube, for sealing and fixing the connecting part near the other end of the inner tube and the outer surface of the inner tube.

[0034] Beneficial effects: By limiting the radial dimension of the connection part to be smaller than that of the mounting part, the amount of raw materials required for processing the connection part can be saved, thereby achieving the technical effect of improving and saving the design cost of the air supply connector.

[0035] By defining the outer tube, including a sealing section—that is, sealing one end of the interval area and connecting the other end of the interval area to the gas source—the oxygen's movement path is ensured to be solely through the interval area into the gas supply unit. This prevents oxygen from entering other locations and affecting the oxygen supply to the patient, thus avoiding oxygen waste. Simultaneously, the sealing section also serves to secure the connection between the mounting section and the connecting section.

[0036] Secondly, this utility model provides a gas supply device, comprising:

[0037] The gas supply connector described above;

[0038] A first connecting tube, one end of which is connected to the first communicating cavity, and the other end of which is connected to the gas source, is used to be worn on one ear of the patient;

[0039] And / or, a second connecting tube, one end of which is connected to the second communicating cavity, and the other end of which is connected to both the detection unit and the monitoring unit, the second connecting tube being worn on the patient's other ear.

[0040] Beneficial effects: By setting the first connecting pipe, the connection length between the outer pipe and the gas source can be increased. At the same time, by setting the second connecting pipe, the connection length between the inner pipe and the detection unit can be increased. This avoids the gas supply device being affected by the excessively short pipe length between the outer pipe and the gas source, as well as between the inner pipe and the detection unit and the monitoring unit, thereby achieving the technical effect of improving the reliability of the gas supply device.

[0041] In one optional implementation, the other end of the second connecting pipe is also connected to the monitoring unit;

[0042] And / or, the gas supply device includes:

[0043] The adjustment unit has an internal mounting channel, through which the first connecting tube and the second connecting tube pass. The adjustment unit is used to adjust the length of the first connecting tube and the second connecting tube worn on the ear.

[0044] And / or, the gas supply device includes:

[0045] A filtration unit is located between the second connecting pipe and the detection unit, and is used to filter water in the patient's exhaled air.

[0046] And / or, the gas supply device includes:

[0047] A fixing unit is disposed between the first connecting pipe and the gas source for communicating with the gas source.

[0048] Beneficial effects: By setting an adjustment unit, when the first connecting tube is worn on one ear of the patient and the second connecting tube is worn on the other ear of the patient, the wearing length of the first and second connecting tubes on the upper right of the adjustment unit can be adjusted according to the different sizes of the patient's face, thereby achieving the technical effect of improving the applicability of the air supply device and thus improving the technical effect of improving the wearing stability of the air supply device.

[0049] By setting up a filter unit, water vapor in the patient's exhaled breath can be filtered out, preventing water vapor from affecting the accuracy of carbon dioxide measurement, thereby achieving the technical effect of improving the accuracy of carbon dioxide detection.

[0050] By setting a fixed unit, the technical effect of improving the tightness of the connection between the gas source and the first connecting pipe can be achieved.

[0051] In one optional embodiment, the gas supply device includes:

[0052] The first connector unit includes a first connector pipe and a first connector. At least two first connector pipes are provided. One end of the first connector is sealed, and the other end of the first connector is provided with a first mounting cavity. One end of each first connector pipe is interconnected with the other end of the first connector pipe. The other end of each first connector pipe is connected to the first mounting cavity, and the other end of each first connector pipe is connected one-to-one with the transmission pipe of each frequency gas in the gas source.

[0053] And / or, the gas supply device includes:

[0054] The second connector unit includes a second connector pipe and a second connector. There are at least two second connector pipes. One end of the second connector is sealed, and the other end of the second connector is provided with a second mounting cavity. One end of each second connector pipe is connected to the other end of the second connector pipe. The other end of one second connector pipe is connected to the detection unit, and the other end of the other second connector pipe is connected to the monitoring unit.

[0055] Beneficial Effects: The high-frequency jet ventilator is equipped with two delivery tubes that can be connected one-to-one with two first-connector tubes. One delivery tube delivers high-frequency oxygen (300 pulses per minute) and is connected to the other end of one first-connector tube. The other delivery tube delivers conventional-frequency oxygen (20-120 pulses per minute) and is connected to the other end of the other first-connector tube. By simultaneously supplying oxygen to the patient through both first-connector tubes, superimposed ventilation with high-frequency and conventional-frequency oxygen is achieved, enabling the device to be used for patients with sleep apnea syndrome, thereby improving the oxygen delivery efficiency of the device.

[0056] By setting up a second connector unit, which includes at least two second connector tubes and a second connector, simultaneous monitoring of end-tidal carbon dioxide and expiratory tubing pressure can be achieved, thereby enhancing the protection of patients.

[0057] Thirdly, this utility model provides a measurement system, comprising:

[0058] The gas supply device described above;

[0059] The detection unit is connected to the other end of the second connecting tube;

[0060] The monitoring unit is connected to the other end of the second connecting pipe.

[0061] Beneficial effects: Since the measurement system includes a gas supply device, it has the same effect as the gas supply device, which will not be elaborated here. Attached Figure Description

[0062] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0063] Figure 1 This is a schematic diagram of the gas supply connector in this embodiment;

[0064] Figure 2 for Figure 1 The front view of the gas supply connector is shown.

[0065] Figure 3 for Figure 2 Schematic diagram of the cross section of AA;

[0066] Figure 4 for Figure 2 A cross-sectional schematic diagram of BB;

[0067] Figure 5 for Figure 2 A cross-sectional schematic diagram of CC;

[0068] Figure 6 for Figure 2 Schematic diagram of the cross section of DD;

[0069] Figure 7 This is a schematic diagram of the connection between the first connector unit and the second connector unit and the gas supply connector in this embodiment;

[0070] Figure 8 This is a schematic diagram of the structure of the first connector unit in this embodiment;

[0071] Figure 9 This is a schematic diagram showing the connection between the fixing unit and the filter unit and the air supply connector in other embodiments.

[0072] Explanation of reference numerals in the attached figures:

[0073] 1. Exhalation tube; 101. First passage;

[0074] 2. Outer tube; 201. Spacing area; 202. Mounting part; 203. Connecting part; 204. Weight reduction hole; 205. First connecting cavity; 206. Sealing part; 207. Transition part;

[0075] 3. Inner tube; 301. Second connecting cavity;

[0076] 4. Air supply unit; 5. Positioning unit; 6. First connecting pipe; 7. Second connecting pipe; 8. Adjustment unit; 9. Filtering unit; 10. Fixing unit;

[0077] 11. First joint unit; 1101. First joint pipe; 1102. First connector;

[0078] 12. First extension tube; 13. Second extension tube;

[0079] 14. Second connector unit; 1401. Second connector pipe; 1402. Second connector. Detailed Implementation

[0080] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0081] The following is combined with Figures 1 to 9 The following describes embodiments of the present invention.

[0082] According to an embodiment of the present invention, in one aspect, a gas supply connector is provided, comprising:

[0083] The exhalation tube 1 is provided at least two at intervals. Each exhalation tube 1 has a first channel 101 inside. One end of the first channel 101 is used to be placed at the position of each nostril of the patient, and the other end of the first channel 101 is used to communicate with a detection unit that can detect the content of the patient's exhaled gas.

[0084] The air supply unit 4 has a second channel inside. One end of the second channel is connected to a gas source, which is used to provide the patient with the required breathing gas. The other end of the second channel is placed at the patient's nostrils to supply air to the patient.

[0085] The outer tube 2 has a first connecting cavity 205 inside. One end of the first connecting cavity 205 is connected to the gas source, and the side of the first connecting cavity 205 is connected to the gas supply unit 4.

[0086] The inner tube 3 extends parallel to the outer tube 2. One end of the inner tube 3 is placed inside the first connecting cavity 205. The outer surface of the inner tube 3 is spaced apart from the inner surface of the outer tube 2 to form a tube-in-tube structure. The spaced area is called the spacer area 201. The spacer area 201 is used to allow gas from the gas source to enter the gas supply unit 4. The inner tube 3 has a second connecting cavity 301 inside. The second connecting cavity 301 is not connected to the first connecting cavity 205. The second connecting cavity 301 at one end of the inner tube 3 is sealed. The side of the second connecting cavity 301 is connected to the exhalation tube 1. The other end of the second connecting cavity 301 is connected to the detection unit so that exhaled gas can enter the detection unit through the exhalation tube 1 and the second connecting cavity 301.

[0087] In this embodiment of the air supply connector, an inner tube 3 is placed inside an outer tube 2 to form a tube-in-tube structure. One end of the inner tube 3 is connected to the exhalation tube 1, and the other end is connected to the detection unit. One end of the outer tube 2 is connected to the air supply unit 4, and the other end is connected to the gas source. Based on this, the air supply connector can detect the amount of air supplied to the patient and the content of the patient's exhaled air. Compared to the parallel arrangement of the oxygen supply tube and the collection tube in related technologies, the tube-in-tube structure design in this embodiment reduces the space occupied by the inner tube 3 and the outer tube 2 to only the space occupied by the outer tube 2. This reduces the space occupied by the air supply connector, lessening the limitations of the usage environment and avoiding the pressure exerted on the patient's upper lip by the air supply connector, as is common in related technologies. This improves the patient's comfort when using the air supply connector.

[0088] In this embodiment, the gas source is a high-frequency jet ventilator, and the detection unit for detecting gas content is an instrument for detecting carbon dioxide concentration. The instrument for detecting carbon dioxide concentration can detect the patient's end-tidal carbon dioxide content.

[0089] Of course, in other embodiments, the type of gas source, the container holding the gas source, and the type of gas detected by the detection unit can be adjusted according to the different designs of the gas supply connector.

[0090] In addition, preferably, the other end of the exhalation tube 1 is also connected to a monitoring unit, which monitors the pressure within the exhalation tube 1. This prevents the patient's expiratory airflow from becoming too turbulent, which could cause breathing difficulties or respiratory discomfort, thus improving the patient's comfort when using the air supply connector. Simultaneously, the monitoring unit can also determine whether the exhalation tube 1 is bent, or whether there is nasal obstruction or upper airway obstruction by monitoring the pressure within the exhalation tube 1, thereby enhancing the effectiveness of patient health monitoring.

[0091] Alternatively, in a different implementation, the other end of the exhalation tube 1 may not be connected to the monitoring unit.

[0092] In addition, combined Figure 1 As shown, in this embodiment, there are two exhalation tubes 1, corresponding to the number of the patient's nostrils. Of course, in other embodiments, the number of exhalation tubes 1 may be adjusted depending on the design of the air supply connector.

[0093] In addition, in this embodiment, two mounting holes are provided along the axial direction of the outer tube 2. The two mounting holes are spaced apart, and the position of the exhalation tube 1 corresponds one-to-one with the position of the mounting hole. The exhalation tube 1 passes through the mounting hole and communicates with the inner tube 3.

[0094] Of course, in other embodiments, depending on the design of the gas supply connector, the structure of the outer tube 2 can be adjusted to achieve the connection between the exhalation tube 1 and the inner tube 3, all of which are within the protection scope of this embodiment.

[0095] Preferably, the exhalation tube 1 and the outer tube 2, as well as the exhalation tube 1 and the inner tube 3, are integrated into one unit, which can improve the reliability of the connection between the exhalation tube 1 and the outer tube 2, and between the exhalation tube 1 and the inner tube 3.

[0096] The shape of the connection point between the expiratory tube 1 and the outer tube 2 is the same as the shape of the expiratory tube 1, that is, the expiratory tube 1 is placed in... Figure 3 At this position, the axis of the expiratory tube 1 passes through the center of the second tube.

[0097] Of course, in other embodiments, depending on the design of the gas supply connector, the shape of the connection position between the exhalation tube 1 and the outer tube 2 is adjusted, in which case the axis of the exhalation tube 1 does not pass through the center of the second pipe.

[0098] In other embodiments, depending on the design of the gas supply connector, the outer tube 2 and the exhalation tube 1, as well as the inner tube 3 and the exhalation tube 1, can be fixedly connected by adhesive, or by other means.

[0099] Of course, in other embodiments, the connection method between the outer tube 2 and the exhalation tube 1 and the inner tube 3 and the exhalation tube 1 can be adjusted according to the different designs of the gas supply connector.

[0100] In addition, combined Figure 2 As shown, the outer tube 2 includes an installation part 202 and a connecting part 203. The two ends of the installation part 202 are respectively connected to the connecting part 203. The installation part 202 is used to connect to the exhalation tube 1 and the air supply unit 4, and the connecting part 203 is used to connect to the outside.

[0101] Preferably, the radial dimension of the connecting portion 203 is smaller than the radial dimension of the mounting portion 202, that is, along... Figure 1As shown, the outer diameter of the connecting part 203 is smaller than the outer diameter of the mounting part 202, which can save the amount of raw materials required for processing the connecting part 203, thereby achieving the technical effect of improving the design cost of the gas supply connector.

[0102] Specifically, in combination Figure 5 and Figure 6 As shown, the outer tube 2 includes:

[0103] A sealing portion 206 is provided between the connecting portion 203 near the other end of the inner tube 3 and the outer surface of the inner tube 3, for sealing and fixing the connecting portion 203 near the other end of the inner tube 3 and the outer surface of the inner tube 3. That is, one end of the spacer region 201 is sealed, for example, along the spacer region 201. Figure 6 The right end is sealed, and the other end of the spacer region 201 is connected to a gas source, for example, the spacer region 201 is along... Figure 6 The left end shown is connected to the gas source. The connection 203 near the other end of the inner tube 3 refers to… Figure 6 The connecting part 203 on the right side is shown.

[0104] Based on this, the oxygen's movement path is limited to entering the gas supply unit 4 through the interval area 201, preventing oxygen from entering other locations and affecting the oxygen supply effect to the patient, thus avoiding oxygen waste. Simultaneously, a sealing part 206 is also provided between the connecting part 203 and the mounting part 202 for connecting the mounting part 202 and the connecting part 203.

[0105] Furthermore, combined Figure 5 and Figure 6 As shown, the outer tube 2 includes:

[0106] The transition section 207 is provided with a connecting channel, and the transition section 207 is located at the connecting section 203 near one end of the inner tube 3, that is... Figure 5 The connecting part 203 shown on the left is located between the connecting part 203 and the mounting part 202 at this end. The connecting channel communicates with the interval area 201 and the first connecting cavity 205. It is used to transition the position where the size changes between the connecting part 203 and the mounting part 202 at the end near the inner tube 3, thereby achieving the technical effect of improving the smoothness of the size change of the outer tube 2.

[0107] Furthermore, the mounting part 202, the sealing part 206, and the connecting part 203, as well as the mounting part 202, the transition part 207, and the connecting part 203, are all integrally formed. As an alternative implementation, the connection method between the mounting part 202 and the connecting part 203 can be adjusted according to the design of the air supply connector.

[0108] Of course, in other embodiments, depending on the design of the gas supply connector, the outer pipe 2 may not include the transition section 207.

[0109] In other embodiments, depending on the design of the gas supply connector, the shape, structure and position of the outer pipe 2, the shape of the sealing part 206, and the relationship between the radial dimensions of the connecting part 203 and the mounting part 202 are adjusted.

[0110] In other embodiments, depending on the design of the gas supply connector, the outer pipe 2 may be limited to include the sealing part 206, or the radial dimension of the connecting part 203 may be limited to be smaller than the radial dimension of the mounting part 202.

[0111] In addition, combined Figure 2 As shown, in this embodiment, the outer tube 2 is provided with a weight-reducing hole 204, and the weight-reducing hole 204 is a rounded rectangle. The weight-reducing hole 204 can be located along the two exhalation tubes 1. Figure 2 The horizontal intervals shown are used to reduce the weight of the second pipe and save on its manufacturing materials, thereby achieving the technical effect of reducing the manufacturing cost of the gas supply connector.

[0112] Of course, in other embodiments, depending on the design of the gas supply connector, the second pipe may not have a weight reduction hole 204, or the position and shape of the weight reduction hole 204 may be adjusted.

[0113] In addition, combined Figure 5 and Figure 6 As shown, in this embodiment, the side of the outer tube 2 is connected to the air supply unit 4, one end of the inner tube 3 is sealed, the other end of the inner tube 3 is connected to the detection unit, and the side of the inner tube 3 is connected to the exhalation tube 1. For example, the inner tube 3 is along... Figure 6 The left end is sealed as shown, and the inner tube 3 is along... Figure 6 The right end shown is connected to the detection unit. This ensures that the carbon dioxide only travels through the expiratory tube 1 and inner tube 3 into the detection unit, preventing carbon dioxide from being transported to other areas and affecting the accuracy of end-tidal carbon dioxide detection.

[0114] Of course, in other embodiments, the structure of the interval region 201 and the inner tube 3 can be adjusted according to the different designs of the gas supply connector. As long as the movement paths of oxygen and carbon dioxide are unique, they are all within the protection scope of this utility model.

[0115] In addition, combined Figure 1 and Figure 2 As shown, in this embodiment, the air supply unit 4 is a connecting hole on the outer pipe 2, which serves as a second channel. Based on this, no additional piping is required, thus simplifying the structural complexity of the oxygen supply connector.

[0116] In this embodiment, multiple air supply units 4, such as four, are arranged around the exhalation tube 1. This ensures that the air around the patient's nose is oxygen-rich; that is, even though the air supply units 4 are located at each of the patient's nostrils rather than inside them, the patient can still breathe oxygen. This makes the oxygenation effect of the air supply units 4 at each of the patient's nostrils the same as when they are placed inside the nostrils. Simultaneously, it improves oxygen dispersion, ensuring that oxygen is evenly distributed throughout the patient's nostrils, achieving uniform oxygen delivery and thus enhancing the patient's comfort during oxygen therapy.

[0117] Furthermore, in this embodiment, the air supply unit 4 is rectangular. Based on this, the connection between the connecting hole and the interval region 201 can be maximized, increasing the area for oxygen release, thereby achieving the technical effect of increasing the oxygen concentration near the patient's nostrils, and thus improving the reliability of oxygen supply to the patient.

[0118] Furthermore, the intervals between adjacent air supply units 4 are the same, so that the air supply units 4 are evenly distributed around the exhalation tube 1. Based on this, the oxygen concentration around the patient is uniform, further improving the uniformity of oxygen delivery, thereby achieving the technical effect of ensuring the reliability of oxygen supply to the patient.

[0119] Of course, in other embodiments, the shape, number, position, and spacing between adjacent connecting holes of the air supply unit 4 can be adjusted according to the design of the air supply connector.

[0120] In other embodiments, depending on the design of the air supply connector, the other end of the exhalation tube 1 may be limited to being connected to the monitoring unit, which is used to monitor the pressure inside the exhalation tube 1, or the air supply unit 4 may be limited to being a connecting hole.

[0121] Of course, in other embodiments, depending on the design of the gas supply connector, the gas supply unit 4 may be limited to having multiple units or the shape of the gas supply unit 4 may be limited.

[0122] In other embodiments, depending on the design of the air supply connector, the air supply unit 4 may be limited to being located around the exhalation tube 1, or the interval between adjacent air supply units 4 may be limited to being the same.

[0123] Of course, in other embodiments, depending on the design of the gas supply connector, it is only limited to having multiple connecting holes or only limited to having rectangular connecting holes.

[0124] In addition, combined Figure 1 and Figure 2 As shown, the gas supply connector includes:

[0125] Positioning unit 5, located on the side of outer tube 2, is used to fit against the skin below the patient's nostrils. Based on this, positioning unit 5 and exhalation tube 1 cooperate to form a triangle, allowing the air supply connector to stably fit against the skin below the patient's nostrils, thereby improving the reliability of the air supply connector.

[0126] Of course, in other embodiments, the outer pipe 2 may be limited to include the mounting part 202 and the connecting part 203, or the air supply connector may be limited to include the positioning unit 5.

[0127] According to an embodiment of the present invention, in another aspect, a gas supply device is provided, comprising:

[0128] The gas supply connector in this embodiment;

[0129] The first connecting tube 6 is connected at one end to the outer tube 2 so that one end of the first connecting tube 6 is connected to the first communicating cavity 205, and the other end of the first connecting tube 6 is connected to the gas source. The first connecting tube 6 is worn on one ear of the patient.

[0130] The second connecting tube 7 is connected at one end to the inner tube 3 so that one end of the second connecting tube 7 is connected to the second communicating cavity 301, and the other end of the second connecting tube 7 is connected to the detection unit. The second connecting tube 7 is used to be worn on the other ear of the patient.

[0131] By setting the first connecting pipe 6, the connection length between the outer pipe 2 and the gas source can be increased. At the same time, by setting the second connecting pipe 7, the connection length between the inner pipe 3 and the detection unit can be increased. This avoids the problem of the pipe length between the outer pipe 2 and the gas source, and between the inner pipe 3 and the detection unit and the monitoring unit being too short, which would affect the use of the gas supply device. This achieves the technical effect of improving the reliability of the gas supply device.

[0132] The other end of the second connecting pipe 7 is also connected to the monitoring unit.

[0133] Furthermore, the first connecting pipe 6 and the outer pipe 2, as well as the second connecting pipe 7 and the inner pipe 3, are integrated into one unit. Based on this, the technical effect of improving the connection reliability between the first connecting pipe 6 and the outer pipe 2, and between the second connecting pipe 7 and the inner pipe 3, can be achieved.

[0134] Of course, in other embodiments, depending on the design of the gas supply device, the connection method between the first connecting pipe 6 and the outer pipe 2, and between the second connecting pipe 7 and the inner pipe 3, can be adjusted. For example, the first connecting pipe 6 and the outer pipe 2, and the second connecting pipe 7 and the inner pipe 3 can be detachably connected or fixedly connected, all of which are within the protection scope of this utility model.

[0135] In other embodiments, depending on the design of the gas supply device, the gas supply device may not include the first connecting pipe 6 and the second connecting pipe 7.

[0136] Furthermore, in this embodiment, combined with Figure 7 As shown, the gas supply device includes:

[0137] The adjustment unit 8 has an internal mounting channel through which both the first connecting tube 6 and the second connecting tube 7 pass. Therefore, the first connecting tube 6 is worn on one of the patient's ears, and the second connecting tube 7 is worn on the other ear, allowing for adjustment to accommodate different facial dimensions. Figure 7 The wearing length of the first connecting pipe 6 and the second connecting pipe 7 on the upper right of the adjustment unit 8 is shown to improve the applicability of the gas supply device and thus improve the stability of the gas supply device.

[0138] Alternatively, the gas supply device may not include the regulating unit 8.

[0139] In addition, combined Figure 8 and Figure 9 As shown, in other embodiments, the gas supply device includes:

[0140] The first connector unit 11 includes a first connector pipe 1101 and a first connector 1102. There are two first connector pipes 1101. One end of the first connector 1102 is sealed, and the other end of the first connector 1102 is provided with a first mounting cavity. One end of each first connector pipe 1101 is interconnected to form a "Y" shaped pipe. After being interconnected, it is connected to the other end of the first connecting pipe 6. The other end of each first connector pipe 1101 is connected to the first mounting cavity. The other end of each first connector pipe 1101 is connected one-to-one with the transmission pipe of each frequency gas in the gas source, for example, by insert connection.

[0141] Specifically, the gas source, namely the high-frequency jet ventilator, has two delivery pipes. One delivery pipe is used to inject high-frequency oxygen (300 jets per minute) and is connected to the other end of a first connector pipe 1101. The other delivery pipe is used to inject conventional-frequency oxygen (20-120 jets per minute) and is connected to the other end of another first connector pipe 1101. Oxygen is supplied to the patient simultaneously through both first connector pipes 1101, achieving superimposed ventilation of high-frequency and conventional-frequency oxygen. This allows the gas supply device to be used for patients with sleep apnea syndrome, thereby improving the oxygen supply effect of the device.

[0142] Meanwhile, the gas supply device includes:

[0143] The second connector unit 14 has the same structure as the first connector unit 11.

[0144] Specifically, the system includes a second connector pipe 1401 and a second connector 1402. At least two second connector pipes 1401 are provided, with one end of each pipe interconnected to form a "Y"-shaped pipe. These interconnected pipes are then connected to the other end of the second connecting pipe 7. The other end of one second connector pipe 1401 is connected to the detection unit, and the other end of the other second connector pipe 1401 is connected to the monitoring unit. Both the other end of one second connector pipe 1401 and the detection unit, as well as the other end of the other second connector pipe 1401 and the monitoring unit, can be connected via insertion.

[0145] One end of the second connector 1402 is sealed, while the other end of the second connector 1402 has a second mounting cavity. Based on this, simultaneous monitoring of end-tidal carbon dioxide and expiratory tubular pressure can be achieved, thereby enhancing the protection of the patient.

[0146] In other embodiments, the connection methods between the first connector unit 11 and the gas source, between the second connector pipe 1401 and the detection unit, and between the second connector pipe 1401 and the monitoring unit are adjusted according to the different designs of the gas supply device.

[0147] Of course, in other embodiments, the number of first connector pipes 1101, the number of first connectors 1102, the number of second connector pipes 1401, and the number of second connectors 1402 are adjusted according to the different frequencies of the gas transmitted through the gas source's transmission pipes.

[0148] In other embodiments, the structure of the first connector unit 11 and the structure of the second connector are adjusted according to the different designs of the gas supply device.

[0149] Of course, in other embodiments, the specific structure of the first connector unit 11 may be adjusted depending on the design of the gas supply device.

[0150] In other embodiments, the gas supply device may include only the first connector unit 11 or only the second connector unit 14.

[0151] Of course, in other embodiments, combined Figure 9As shown, depending on the design of the gas supply device, it may not include the first connector unit 11 or the second connector unit 14. In this case, the gas supply device includes a first extension pipe 12 and a second extension pipe 13. The first extension pipe 12 is located between the first connecting pipe 6 and the gas source, with one end connected to the first connecting pipe 6 via a Luer connector and the other end connected to the gas source. The second extension pipe 13 is located between the second connecting pipe 7 and the detection unit, with one end connected to the second connecting pipe 7 via a Luer connector and the other end connected to the detection unit. Therefore, when the lengths of the first connecting pipe 6 and the second connecting pipe 7 are insufficient, the first extension pipe 12 and the second extension pipe 13 are connected as needed. The first extension pipe 12 enables communication between the first connecting pipe 6 and the gas source, and the second extension pipe 13 enables communication between the second connecting pipe 7 and the gas supply unit 4, thereby improving the reliability of the gas supply device.

[0152] The first extension tube 12 is detachably connected to the gas source, and the second extension tube 13 is detachably connected to the detection unit. This improves the ease of adjustment and replacement of the first and second extension tubes 12 and 13. Specifically, the second extension tube 13 and the detection unit can be detachably connected via a Luer connector, improving the airtightness of the connection between the second extension tube 13 and the detection unit. Alternatively, the gas supply device may not include the first and second extension tubes 12 or 13, or it may include either the first extension tube 12 or the second extension tube 13.

[0153] Furthermore, combined Figure 9 As shown, the gas supply device includes a filter unit 9 and a fixing unit 10. The filter unit 9 is located between the inner tube 3 and the detection unit, specifically between the second extension tube 13 and the detection unit, and is used to filter water vapor in the patient's exhaled gas. Based on this, water vapor in the patient's exhaled gas can be filtered, preventing water vapor from affecting the accuracy of carbon dioxide measurement, thereby improving the technical effect of carbon dioxide detection accuracy. Specifically, the filter unit 9 can be a gas-water separator. The fixing unit 10 is located between the first connecting tube 6 and the gas source, specifically between the first extension tube 12 and the gas source, and is used to communicate with the gas source. Specifically, the fixing unit 10 is the oxygen connector of the ventilator. Based on this, the tightness of the connection between the gas source and the first connecting tube 6 can be improved. The oxygen connector of the ventilator is a mature technology and will not be described in detail here.

[0154] As an alternative implementation, the gas supply device may not include the filter unit 9, or it may not include the fixing unit 10.

[0155] Of course, in other embodiments, the types of filter units 9 and fixing units 10 may be adjusted depending on the design of the gas supply device.

[0156] In other embodiments, depending on the design of the gas supply device, the other end of the second connecting pipe 7 is also connected to the monitoring unit, and the gas supply device includes one or a combination of multiple structures such as the adjustment unit 8, the filter unit 9, and the fixing unit 10, all of which are within the protection scope of this utility model.

[0157] Of course, in other embodiments, the connection methods between the first extension pipe 12 and the first connecting pipe 6, between the first extension pipe 12 and the gas source, between the second extension pipe 13 and the detection unit, and between the second extension pipe 13 and the second connecting pipe 7 may be adjusted according to the different designs of the gas supply device.

[0158] According to an embodiment of the present invention, in another aspect, a measurement system is provided, comprising:

[0159] The gas supply device in this embodiment;

[0160] The detection unit is connected to the other end of the second connecting pipe 7;

[0161] The monitoring unit is connected to the other end of the second connecting pipe 7.

[0162] In this embodiment, the detection unit can be a ventilator. Of course, in other embodiments, the detection unit can be simply an instrument for detecting carbon dioxide, such as a carbon dioxide detector.

[0163] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A gas supply connector, characterized in that, include: Exhalation tubes (1), at least two are provided at intervals, and each exhalation tube (1) is provided with a first channel (101) inside. One end of the first channel (101) is used to be placed at the position of each nostril of the patient, and the other end of the first channel (101) is used to communicate with a detection unit that can detect the content of the patient's exhaled gas. The gas supply unit (4) has a second channel inside. One end of the second channel is connected to a gas source, which is used to provide the patient with the required breathing gas. The other end of the second channel is used to be placed at the patient's nostrils to supply air to the patient. The outer tube (2) has a first connecting cavity (205) inside. One end of the first connecting cavity (205) is connected to the gas source, and the side of the first connecting cavity (205) is connected to the gas supply unit (4). An inner tube (3) extends parallel to the extension direction of the outer tube (2). One end of the inner tube (3) is placed inside the first communicating cavity (205). The outer surface of the inner tube (3) is spaced apart from the inner surface of the outer tube (2) to form a tube-in-tube structure. The spaced area is called the spacer area (201). The spacer area (201) is used to allow gas from the gas source to enter the gas supply unit (4) through the spacer area (201). The inner tube (3) has a second connecting cavity (301) inside. The second connecting cavity (301) is not connected to the first connecting cavity (205). The second connecting cavity (301) located at one end of the inner tube (3) is sealed. The side of the second connecting cavity (301) is connected to the exhalation tube (1). The other end of the second connecting cavity (301) is connected to the detection unit so that the exhaled gas can enter the detection unit through the exhalation tube (1) and the second connecting cavity (301).

2. The gas supply connector according to claim 1, characterized in that, The other end of the exhalation tube (1) is also used to connect to a monitoring unit, which is used to monitor the pressure inside the exhalation tube (1); And / or, the gas supply unit (4) is a connecting hole provided on the outer pipe (2), and the connecting hole is used as the second channel.

3. The gas supply connector according to claim 2, characterized in that, The gas supply unit (4) is provided in multiple units; And / or, the gas supply unit (4) is rectangular.

4. The gas supply connector according to claim 3, characterized in that, The air supply unit (4) is located around the exhalation tube (1); And / or, the spacing between adjacent gas supply units (4) is the same, so that the gas supply units (4) supply oxygen evenly.

5. The gas supply connector according to any one of claims 1-4, characterized in that, The outer tube (2) includes an installation part (202) and a connecting part (203). The two ends of the installation part (202) are respectively connected to the connecting part (203). The installation part (202) is used to connect to the exhalation tube (1) and the air supply unit (4). The connecting part (203) is used to communicate with the outside. And / or, the gas supply connector includes: The positioning unit (5) is located on the side of the outer tube (2) and is used to fit the skin below the patient's nostrils.

6. The gas supply connector according to claim 5, characterized in that, The radial dimension of the connecting part (203) is smaller than the radial dimension of the mounting part (202); And / or, the outer tube (2) comprises: A sealing part (206) is provided between the connecting part (203) near the other end of the inner tube (3) and the outer side of the inner tube (3) for sealing and fixing the connecting part (203) near the other end of the inner tube (3) and the outer side of the inner tube (3).

7. A gas supply device, characterized in that, include: Gas supply connector as described in any one of claims 1-6; The first connecting tube (6) is connected at one end to the first communicating cavity (205) and at the other end to the gas source. The first connecting tube (6) is used to be worn on one ear of the patient. And / or, a second connecting tube (7), one end of which is connected to the second communicating cavity (301), and the other end of which is connected to the detection unit, the second connecting tube (7) being worn on the other ear of the patient.

8. The gas supply device according to claim 7, characterized in that, The other end of the second connecting pipe (7) is also connected to the monitoring unit; And / or, the gas supply device includes: The adjustment unit (8) has an internal installation channel. The first connecting tube (6) and the second connecting tube (7) are both inserted into the installation channel. The adjustment unit (8) is used to adjust the length of the first connecting tube (6) and the second connecting tube (7) worn on the ear. And / or, the gas supply device includes: A filter unit (9) is disposed between the second connecting pipe (7) and the detection unit, and is used to filter water in the patient's exhaled gas; And / or, the gas supply device includes: A fixing unit (10) is disposed between the first connecting pipe (6) and the gas source for communicating with the gas source.

9. The gas supply device according to claim 7, characterized in that, The gas supply device includes: The first connector unit (11) includes a first connector pipe (1101) and a first connector (1102). There are at least two first connector pipes (1101). One end of the first connector (1102) is sealed, and the other end of the first connector (1102) is provided with a first mounting cavity. One end of each first connector pipe (1101) is interconnected with the other end of the first connecting pipe (6). The other end of each first connector pipe (1101) is connected to the first mounting cavity, and the other end of each first connector pipe (1101) is connected one-to-one with the transmission pipe of each frequency gas in the gas source. And / or, the gas supply device includes: The second connector unit (14) includes a second connector pipe (1401) and a second connector (1402). There are at least two second connector pipes (1401). One end of the second connector (1402) is sealed, and the other end of the second connector (1402) is provided with a second mounting cavity. One end of each second connector pipe (1401) is connected to each other and to the other end of the second connecting pipe (7). The other end of one second connector pipe (1401) is connected to the detection unit, and the other end of the other second connector pipe (1401) is connected to the monitoring unit.

10. A measurement system, characterized in that, include: The gas supply device according to any one of claims 7-9; The detection unit is connected to the other end of the second connecting pipe (7); The monitoring unit is connected to the other end of the second connecting pipe (7).

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