A pipeline set for oxygen inhalation and end-tidal carbon dioxide collection

By using an alternating design of heat-conducting cylinder, heat-conducting plate, and electric heating rod, combined with temperature sensor and moisture-absorbing jacket, the problems of uneven oxygen heating and dryness are solved, achieving uniform heating and humidification of oxygen, improving patient comfort and preventing bacterial contamination.

CN224540734UActive Publication Date: 2026-07-24JIANGSU MAYBON BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU MAYBON BIOTECHNOLOGY CO LTD
Filing Date
2024-12-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The small size of the heating structure in existing oxygen inhalation tubing results in short oxygen heating time and limited temperature rise. Furthermore, excessive power can easily lead to pipe aging and deformation, posing a risk of chemical release. Additionally, the dryness of the oxygen can cause discomfort to patients.

Method used

The design employs an alternating distribution of heat-conducting cylinders and heat-conducting plates, combined with electric heating rods and temperature sensors, to extend the oxygen heating time. It also uses moisture-absorbing jackets and strips to keep the oxygen humid and warm, while a sealing sleeve prevents water from entering the heat-conducting cylinder. Aluminum alloy materials are used to improve heat uniformity.

Benefits of technology

It achieves uniform heating and humidification of oxygen, avoiding burns from excessive heat and discomfort from dryness, thus improving patient comfort, and prevents bacterial contamination through a sealed structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of pipeline kits for collecting end tidal carbon dioxide while inhaling oxygen, it is related to oxygen inhalation tube technical field, the utility model, including oxygen pipe and shell, shell inside is connected with heat conduction cylinder, and heat conduction cylinder inside is connected with heat conduction plate, heat conduction cylinder outside is sleeved with electric heating rod, heat conduction cylinder and shell back side side are penetrated with temperature sensor;Shell top side is penetrated with support, and support outer part is respectively sleeved with sealing sleeve and moisture absorption sleeve.The utility model is set through heat conduction cylinder, electric heating rod, heat conduction plate and temperature sensor, electric heating rod starts after heat conduction cylinder and heat conduction plate are heated, pass through multiple heat conduction plate staggered distribution and prolong the time of oxygen passing through heat conduction cylinder, to make oxygen can have more time to be heated, and the temperature before oxygen enters oxygen pipe is detected by temperature sensor, avoid that oxygen temperature is too high and scalds patient respiratory tract;It improves heating efficiency and ensures oxygen warm and comfortable, and avoid that temperature is too high and appears scald or discomfort.
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Description

Technical Field

[0001] This utility model relates to the field of oxygen inhalation tubing technology, specifically a tubing kit for simultaneously collecting end-tidal carbon dioxide while inhaling oxygen. Background Technology

[0002] Oxygen inhalation tubing is a common medical material, mainly used for nasal inhalation, oral inhalation, and facial inhalation. It can provide oxygen to patients and is the most commonly used treatment method in clinical practice. It is usually used for nasal inhalation and inserted into the nasal vestibule. Bilateral nasal cannulas can also be used, inserted into the vestibules of both nostrils at the same time. It has good compliance, the insertion is relatively shallow, and patients can easily accept it.

[0003] Application No. 202420325253.5 discloses a modified nasal cannula device for perioperative and postoperative oxygen inhalation, comprising an air supply tube, a filter assembly at the right end of the air supply tube, a ring-shaped nasal cannula at the right side of the filter assembly, a heating assembly on the connecting tube at the left end of the nasal cannula, and symmetrical nasal cannula tips on the inner side of the nasal cannula. This modified nasal cannula device for perioperative and postoperative oxygen inhalation, by incorporating a filter box with an internal limiting frame, and with the filter cotton inserted into the limiting frame, facilitates the addition of external lemon flavoring in conjunction with a titration tank. While filtering the oxygen delivered through the air supply tube, it also improves the odor of the inhaled gas, reducing patient discomfort and postoperative nausea and vomiting. The heating box contains a heating wire to heat the connecting tube between the nasal cannula and the air supply tube, thereby warming the gas passing through the nasal cannula and reducing patient discomfort.

[0004] This technical solution uses water bath heating to warm the oxygen, so that the oxygen inhaled by the patient is not too cold. However, the heating structure is small in size, resulting in a short air heating time and limited effect on warming the oxygen. The patient can still feel cold. If the power of the heater is increased, it can easily cause the pipes to age and discolor. In severe cases, they may melt and deform, which may release chemical substances that enter the patient's respiratory tract with the oxygen. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a tubing kit for simultaneously collecting end-tidal carbon dioxide while inhaling oxygen, in order to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tubing kit for simultaneously collecting end-tidal carbon dioxide while inhaling oxygen, comprising an oxygen tube and a shell, wherein a heat-conducting cylinder is connected inside the shell, and a heat-conducting plate is connected inside the heat-conducting cylinder, and an electric heating rod is sleeved on the outside of the heat-conducting cylinder, and a temperature sensor is inserted through the heat-conducting cylinder and one side of the back of the shell; a bracket is inserted through one side of the top of the shell, and a sealing sleeve and a moisture-absorbing sleeve are respectively sleeved on the outside of the bracket, and a moisture-absorbing strip is connected to the top of the moisture-absorbing sleeve, and the moisture-absorbing strip extends through the bottom of the sealing sleeve to the outer surface of the sealing sleeve.

[0007] By adopting the above technical solution, as oxygen passes through the heat-conducting cylinder, the electric heating rod heats the heat-conducting cylinder and heat-conducting plates after activation. The staggered distribution of multiple heat-conducting plates extends the time for oxygen to pass through the heat-conducting cylinder, allowing the oxygen more time to be heated. Furthermore, a temperature sensor detects the temperature of the oxygen before it enters the oxygen tube, preventing the oxygen from being too hot and scalding the patient's respiratory tract. While heating the oxygen, the electric heating rod also heats the water inside the outer shell to warm water. The warm water is guided into the moisture-absorbing sleeve through the capillary effect of the moisture-absorbing strip. At the same time, the sealing sleeve prevents water from the outer shell from entering the heat-conducting cylinder. Then, the oxygen becomes moist and warm through contact with the moisture-absorbing sleeve.

[0008] Furthermore, both the heat-conducting cylinder and the heat-conducting plate are made of aluminum alloy.

[0009] By adopting the above technical solution, the heat-conducting cylinder and heat-conducting plate can transfer heat to oxygen, making the heat distribution uniform, thus facilitating the provision of warm oxygen to patients.

[0010] Furthermore, multiple heat-conducting plates are provided, and the multiple heat-conducting plates are distributed alternately in the upper and lower parts.

[0011] By adopting the above technical solution, the time for oxygen to pass through the heat-conducting cylinder is extended by the staggered distribution of multiple heat-conducting plates, thus allowing the oxygen to be heated for a longer period of time.

[0012] Furthermore, a bolt runs through the top of the bracket, and the bracket is detachably connected to the outer casing via the bolt.

[0013] By adopting the above technical solution, the staff can unscrew the bolts to remove the bracket, thereby disassembling and replacing the sealing sleeve, moisture-absorbing sleeve and moisture-absorbing strip, thus avoiding bacterial growth and contamination.

[0014] Furthermore, the sealing sleeve is made of silicone material.

[0015] By adopting the above technical solution, the sealing sleeve prevents water from the outer shell from entering the heat-conducting cylinder, thereby preventing patients from choking on water.

[0016] Furthermore, both the moisture-absorbing sleeve and the moisture-absorbing strip are made of twisted cotton yarn.

[0017] By adopting the above technical solution, warm water is guided into the interior of the moisture-absorbing jacket through the capillary effect of the moisture-absorbing strip, and then becomes humid and warm through contact with the moisture-absorbing jacket by oxygen.

[0018] Furthermore, the top and bottom of the housing are respectively provided with a first threaded sealing plug and a second threaded sealing plug, and the outer surface of the housing is provided with a viewing window.

[0019] By adopting the above technical solution, staff can check the liquid level inside the casing through the viewing window on the surface of the casing. When the liquid level is low, staff can remove the first threaded sealing plug and pour pure water into the casing. After that, staff can put the first threaded sealing plug back in. After use, staff can remove the second threaded sealing plug to drain the water remaining in the casing, thus avoiding bacterial growth and contamination.

[0020] Furthermore, one end of the oxygen tube is connected to a first oxygen connector, the other end of the oxygen tube is connected to a nasal plug, and one end of the nasal plug is connected to a bite plate through a pipe. One end of the bite plate is connected to a carbon dioxide tube, and one end of the carbon dioxide tube is connected to a detection connector. Both the oxygen tube and the carbon dioxide tube are connected to a first sleeve and a second sleeve.

[0021] By adopting the above technical solution, oxygen enters the interior of the heat-conducting cylinder through the second oxygen connector, and then enters the oxygen tube through the oxygen interface and the first oxygen connector. Subsequently, the patient inhales oxygen through one end of the nasal plug, and then sends the end-tidal carbon dioxide produced by breathing into the carbon dioxide tube through the other side of the nasal plug and the mouthpiece. Then, the carbon dioxide tube sends the end-tidal carbon dioxide into the device for monitoring end-tidal carbon dioxide through the detection connector, thereby enabling real-time monitoring of end-tidal carbon dioxide.

[0022] Furthermore, oxygen interfaces and second oxygen connectors are respectively connected to both sides of the outer shell, and the oxygen interfaces are connected to the first oxygen connector.

[0023] By adopting the above technical solution, when it is necessary to replace the oxygen tube, the second oxygen connector can be disconnected from the oxygen interface. Both the oxygen connector and the oxygen interface are well-known methods in the prior art, and this technical solution will not be described in detail here.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. This utility model, through the arrangement of a heat-conducting cylinder, an electric heating rod, a heat-conducting plate, and a temperature sensor, heats the heat-conducting cylinder and the heat-conducting plate after the electric heating rod is activated. The staggered distribution of multiple heat-conducting plates extends the time for oxygen to pass through the heat-conducting cylinder, thus allowing the oxygen to be heated for a longer period of time. Furthermore, the temperature sensor detects the temperature of the oxygen before it enters the oxygen tube, preventing the oxygen temperature from being too high and scalding the patient's respiratory tract. It improves heating efficiency, ensures that the oxygen is warm and comfortable, and avoids burns or discomfort caused by excessively high temperatures.

[0026] 2. This utility model, through the arrangement of a bracket, sealing sleeve, moisture-absorbing sleeve, and moisture-absorbing strip, allows the electric heating rod to heat the water inside the outer shell into warm water while heating the oxygen. The warm water is guided into the moisture-absorbing sleeve through the capillary effect of the moisture-absorbing strip. At the same time, the sealing sleeve prevents water from the outer shell from entering the heat-conducting cylinder. Then, the oxygen becomes moist and warm through contact with the moisture-absorbing sleeve. By warming and moistening the oxygen at the same time, the oxygen is prevented from drying out and causing respiratory discomfort to the patient. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the oxygen tube structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the outer shell of this utility model;

[0030] Figure 4 This is a schematic diagram of the support structure of this utility model;

[0031] Figure 5 This is a side sectional view of the support structure of this utility model.

[0032] In the diagram: 1. Oxygen tube; 2. Carbon dioxide tube; 3. First sleeve; 4. Second sleeve; 5. First oxygen connector; 6. Nasal plug; 7. Biting end; 8. Detection connector; 9. Outer shell; 10. Oxygen interface; 11. Second oxygen connector; 12. First threaded sealing plug; 13. Second threaded sealing plug; 14. Bracket; 15. Sealing sleeve; 16. Moisture-absorbing sleeve; 17. Moisture-absorbing strip; 18. Heat-conducting cylinder; 19. Electric heating rod; 20. Heat-conducting plate; 21. Temperature sensor. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The embodiments of this utility model will be described below based on its overall structure.

[0035] Example 1:

[0036] A tubing kit for simultaneously inhaling oxygen and collecting end-tidal carbon dioxide, such as Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the device includes an oxygen tube 1 and an outer shell 9. A heat-conducting cylinder 18 is connected inside the outer shell 9, and a heat-conducting plate 20 is connected inside the heat-conducting cylinder 18. Multiple heat-conducting plates 20 are arranged in a staggered pattern. Both the heat-conducting cylinder 18 and the heat-conducting plates 20 are made of aluminum alloy. An electric heating rod 19 is fitted onto the outside of the heat-conducting cylinder 18. A temperature sensor 21 passes through one side of the back of the heat-conducting cylinder 18 and the outer shell 9. A bracket 14 passes through one side of the top of the outer shell 9, and a bolt passes through the top of the bracket 14. The bracket 14 is detachably connected to the outer shell 9 by the bolt. A sealing sleeve 15 and a moisture-absorbing sleeve 16 are fitted onto the outside of the bracket 14. The sealing sleeve 15 is made of silicone material, and a moisture-absorbing strip 17 is connected to the top of the moisture-absorbing sleeve 16. Both the moisture-absorbing sleeve 16 and the moisture-absorbing strip 17 are made of twisted cotton yarn. The moisture-absorbing strip 17 extends through the bottom of the sealing sleeve 15 to the outer surface of the sealing sleeve 15. As oxygen passes through the heat-conducting cylinder 18, the electric heating rod 19 is activated to heat the heat-conducting cylinder 18 and the heat-conducting plate 20. The staggered distribution of multiple heat-conducting plates 20 prolongs the time for oxygen to pass through the heat-conducting cylinder 18, allowing the oxygen to be heated for a longer period of time. The temperature sensor 21 detects the temperature of the oxygen before it enters the oxygen tube 1 to prevent the oxygen from being too hot and burning the patient's respiratory tract. While heating the oxygen, the electric heating rod 19 heats the water inside the outer shell 9 to warm water. The warm water is guided into the moisture-absorbing sleeve 16 through the capillary effect of the moisture-absorbing strip 17. At the same time, the sealing sleeve 15 prevents the water inside the outer shell 9 from entering the heat-conducting cylinder 18. Then, the oxygen becomes moist and warm through contact with the moisture-absorbing sleeve 16.

[0037] See Figure 1 and Figure 2 In the above embodiment, one end of the oxygen tube 1 is connected to a first oxygen connector 5, and the other end of the oxygen tube 1 is connected to a nasal plug 6. One end of the nasal plug 6 is connected to a mouthpiece 7 through a pipe, and one end of the mouthpiece 7 is connected to a carbon dioxide tube 2. One end of the carbon dioxide tube 2 is connected to a detection connector 8. Both the oxygen tube 1 and the carbon dioxide tube 2 are connected to a first sleeve 3 and a second sleeve 4. The outer shell 9 is connected to an oxygen interface 10 and a second oxygen connector 11 on both sides respectively. The oxygen interface 10 is connected to the first oxygen connector 5. Oxygen enters the interior of the heat-conducting cylinder 18 through the second oxygen connector 11. Then, oxygen enters the oxygen tube 1 through the oxygen interface 10 and the first oxygen connector 5. Subsequently, the patient inhales oxygen through one end of the nasal plug 6. Then, the patient sends the end-tidal carbon dioxide generated by breathing into the carbon dioxide tube 2 through the other side of the nasal plug 6 and the mouthpiece 7. Subsequently, the carbon dioxide tube 2 sends the end-tidal carbon dioxide into the device for monitoring end-tidal carbon dioxide through the detection connector 8, thereby enabling real-time monitoring of end-tidal carbon dioxide.

[0038] Example 2:

[0039] Based on the above embodiment one, the following settings are now implemented to facilitate water addition and drainage.

[0040] See Figure 1 and Figure 3 In the above embodiment, the top and bottom of the outer shell 9 are respectively provided with a first threaded sealing plug 12 and a second threaded sealing plug 13. A viewing window is provided on the outer surface of the outer shell 9. The operator can view the liquid level inside the outer shell 9 through the viewing window on the surface of the outer shell 9. When the liquid level is low, the operator removes the first threaded sealing plug 12 and pours pure water into the outer shell 9. After that, the operator puts the first threaded sealing plug 12 back in. After use, the operator can remove the second threaded sealing plug 13 to drain the water remaining in the outer shell 9.

[0041] The implementation principle of this utility model is as follows: First, when it is needed, the staff removes the first threaded sealing plug 12 and pours pure water into the shell 9. Then the staff puts the first threaded sealing plug 12 back in. The staff connects the shell 9 to the oxygen supply equipment through the second oxygen connector 11 and connects the carbon dioxide tube 2 to the detection instrument through the detection connector 8.

[0042] Oxygen enters the interior of the heat-conducting cylinder 18 through the second oxygen connector 11, and then enters the oxygen tube 1 through the oxygen interface 10 and the first oxygen connector 5. Subsequently, the patient inhales oxygen through one end of the nasal plug 6, and then sends the end-tidal carbon dioxide produced by breathing into the carbon dioxide tube 2 through the other side of the nasal plug 6 and the mouthpiece 7. Subsequently, the carbon dioxide tube 2 sends the end-tidal carbon dioxide into the device for monitoring end-tidal carbon dioxide through the detection connector 8, thereby enabling real-time monitoring of end-tidal carbon dioxide.

[0043] As oxygen passes through the heat-conducting cylinder 18, the electric heating rod 19 is activated to heat the heat-conducting cylinder 18 and the heat-conducting plate 20. The staggered distribution of multiple heat-conducting plates 20 prolongs the time for oxygen to pass through the heat-conducting cylinder 18, allowing the oxygen more time to be heated. The temperature sensor 21 detects the temperature of the oxygen before it enters the oxygen tube 1 to prevent the oxygen from being too hot and burning the patient's respiratory tract. While heating the oxygen, the electric heating rod 19 also heats the water inside the outer shell 9 to warm water. The warm water is guided into the moisture-absorbing sleeve 16 through the capillary effect of the moisture-absorbing strip 17. At the same time, the sealing sleeve 15 prevents water from the outer shell 9 from entering the heat-conducting cylinder 18. Then, the oxygen becomes moist and warm through contact with the moisture-absorbing sleeve 16.

[0044] Staff can check the liquid level inside the housing 9 through the viewing window on the surface of the housing 9. When the liquid level is low, the staff can remove the first threaded sealing plug 12 and pour pure water into the housing 9. After that, the staff can put the first threaded sealing plug 12 back in. After use, the staff can remove the second threaded sealing plug 13 to drain the water remaining in the housing 9 to prevent the growth of bacteria and contamination. The staff can also unscrew the bolts to remove the bracket 14, thereby disassembling and replacing the sealing sleeve 15, the moisture-absorbing sleeve 16 and the moisture-absorbing strip 17, in order to prevent the growth of bacteria and contamination.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A tubing kit for simultaneously inhaling oxygen and collecting end-tidal carbon dioxide, comprising an oxygen tubing (1) and a housing (9), characterized in that: The outer shell (9) is connected to a heat-conducting cylinder (18), and a heat-conducting plate (20) is connected to the inside of the heat-conducting cylinder (18). An electric heating rod (19) is sleeved on the outside of the heat-conducting cylinder (18). A temperature sensor (21) passes through the back side of the heat-conducting cylinder (18) and the outer shell (9). A bracket (14) passes through the top side of the outer shell (9), and a sealing sleeve (15) and a moisture-absorbing sleeve (16) are respectively sleeved on the outside of the bracket (14). A moisture-absorbing strip (17) is connected to the top of the moisture-absorbing sleeve (16), and the moisture-absorbing strip (17) passes through the bottom of the sealing sleeve (15) and extends to the outer surface of the sealing sleeve (15).

2. The tubing kit for simultaneously collecting end-tidal carbon dioxide during oxygen inhalation according to claim 1, characterized in that: Both the heat-conducting cylinder (18) and the heat-conducting plate (20) are made of aluminum alloy.

3. The tubing kit for simultaneously collecting end-tidal carbon dioxide during oxygen inhalation according to claim 2, characterized in that: Multiple heat-conducting plates (20) are provided, and the multiple heat-conducting plates (20) are staggered vertically.

4. The tubing kit for simultaneously collecting end-tidal carbon dioxide during oxygen inhalation according to claim 1, characterized in that: The top of the bracket (14) is pierced by a bolt, and the bracket (14) is detachably connected to the outer shell (9) by the bolt.

5. The tubing kit for simultaneously collecting end-tidal carbon dioxide during oxygen inhalation according to claim 1, characterized in that: The sealing sleeve (15) is made of silicone material.

6. The tubing kit for simultaneously collecting end-tidal carbon dioxide during oxygen inhalation according to claim 1, characterized in that: Both the moisture-absorbing sleeve (16) and the moisture-absorbing strip (17) are made of twisted cotton yarn.

7. The tubing kit for simultaneously collecting end-tidal carbon dioxide during oxygen inhalation according to claim 1, characterized in that: The top and bottom of the outer casing (9) are respectively provided with a first threaded sealing plug (12) and a second threaded sealing plug (13), and the outer surface of the outer casing (9) is provided with a viewing window.

8. The tubing kit for simultaneously collecting end-tidal carbon dioxide during oxygen inhalation according to claim 1, characterized in that: One end of the oxygen tube (1) is connected to a first oxygen connector (5), and the other end of the oxygen tube (1) is connected to a nasal plug (6). One end of the nasal plug (6) is connected to a mouthpiece (7) through a pipe. One end of the mouthpiece (7) is connected to a carbon dioxide tube (2), and one end of the carbon dioxide tube (2) is connected to a detection connector (8). Both the oxygen tube (1) and the carbon dioxide tube (2) are connected to a first sleeve (3) and a second sleeve (4).

9. The tubing kit for simultaneously collecting end-tidal carbon dioxide during oxygen inhalation according to claim 8, characterized in that: The outer shell (9) is connected to an oxygen interface (10) and a second oxygen connector (11) on both sides, and the oxygen interface (10) is connected to the first oxygen connector (5).

Citation Information

Patent Citations

  • CN221888932U