Leak-proof oxygen inhalation tube cannula

By employing a one-way inflation valve and suction hole design combining a conical piston head and sealing ring in the oxygen tubing, the problem of air leakage in the airbag is solved, ensuring the airbag's sealing and support, preventing airway secretion leakage, and achieving effective airway isolation.

CN224540743UActive Publication Date: 2026-07-24ZHUJIANG HOSPITAL OF SOUTHERN MEDICAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUJIANG HOSPITAL OF SOUTHERN MEDICAL UNIVERSITY
Filing Date
2025-01-09
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing one-way inflation valve on the indicator airbag has poor airtightness, causing the airbag to leak, which affects the airbag's support and airway connectivity.

Method used

A leak-proof oxygen inhalation tube sleeve was designed, which uses a one-way inflation valve composed of a conical piston head and a sealing ring, combined with a suction hole and a suction tube to ensure the airbag's airtightness. A sputum storage groove is set on the airbag to store secretions and prevent air leakage.

Benefits of technology

The airtightness of the one-way inflation valve has been improved, preventing airbag leakage, ensuring the support of the airbag, preventing upper airway secretions from entering the lower airway and lungs, and enhancing the airway isolation effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti -leakage oxygen inhalation gas pipe sleeve, including catheter, air bag, inflation pipe, indicating air bag and suction tube, air bag sets up on the catheter, and one end of inflation pipe communicates with the inside of air bag, and the other end draws out from the outer wall of catheter and is connected with indicating air bag, and is equipped with one -way inflation valve on indicating air bag, one -way inflation valve includes the casing, and one end of casing is equipped with the air inlet, and the other end of casing is equipped with the air outlet, and the inside of casing forms the sealed cavity, and the sealed cavity is equipped with the movable piston rod in, and piston rod is equipped with piston head, and is equipped with spring between piston head and casing, and the piston head is conical, and the outside of piston head is equipped with the sealing ring, and the air inlet is set up as the conical type of adaptation with sealing ring. The utility model discloses one -way inflation valve can better seal the air inlet, and the air -tightness is better, avoids the occurrence of air bag leakage problem, guarantees the supporting force of air bag, and effectively separates upper air passage and lower air passage.
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Description

Technical Field

[0001] This utility model relates to the field of gas cutting sleeve technology, and in particular to a leak-proof oxygen-absorbing sleeve. Background Technology

[0002] Tracheotomy is a surgical procedure that involves cutting open the trachea in the neck and inserting a specially designed tracheostomy tube. It is mainly used to improve the patient's respiratory function.

[0003] Tracheostomy cannulas used in tracheostomy are generally divided into metal cannulas and plastic cannulas. Existing plastic tracheostomy cannulas usually have an inflator and an indicator inflator connected to the inflator. After the cannulas is inserted into the airway, the inflator is inflated to make the inflator fit tightly against the airway to ensure normal gas delivery. At the same time, the condition of the inflator can be monitored by observing the indicator inflator.

[0004] However, the existing one-way inflation valve on the indicator airbag has poor airtightness and is prone to air leakage, which in turn leads to airbag leakage, resulting in insufficient airbag support and connection between the upper and lower airways. Therefore, there is an urgent need to provide a leak-proof oxygen inhalation tube sleeve. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides a leak-proof inhalable oxygen tube sleeve, which aims to solve the problem of air leakage caused by poor airtightness of the one-way inflation valve on the indicator airbag.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a leak-proof inhalable oxygen tube sleeve, including a conduit, an air bag, an inflation tube, an indicator air bag, and a suction tube. The air bag is set on the conduit. One end of the inflation tube communicates with the inside of the air bag, and the other end is led out from the outer wall of the conduit and connected to the indicator air bag. A suction hole is opened at the end of the conduit near the air bag. One end of the suction tube communicates with the suction hole, and the other end is led out from the outer wall of the conduit. The indicator air bag is provided with a one-way inflation valve. The one-way inflation valve includes a housing. One end of the housing is provided with an air inlet, and the other end of the housing is provided with an air outlet. A sealing cavity is formed inside the housing. A movable piston rod is provided in the sealing cavity. The piston rod is provided with a piston head. A spring is provided between the piston head and the housing. The piston head is conical. A sealing ring is fitted on the outside of the piston head. The air inlet is set to be conical and adapted to the sealing ring.

[0007] As a further improvement of this invention, a protective cap is provided at the end of the suction tube away from the suction hole. The protective cap can be used to close the suction tube when suction is not required.

[0008] As a further improvement of this utility model: a sputum storage groove is provided at one end of the airbag near the suction hole. By providing a sputum storage groove on the airbag, secretions on the airbag can be temporarily stored, preventing secretions on the airbag from leaking into the lower respiratory tract through the folds between the airbag wall and the tracheal wall; at the same time, the secretions on the airbag can be suctioned out using a suction tube connected to the suction hole.

[0009] As a further improvement of this utility model, the catheter is provided with a fixing element.

[0010] As a further improvement of this utility model: a connector is installed at one end of the conduit.

[0011] As a further improvement of this utility model: a guide rod is connected to the top of the piston rod, the first end of the guide rod is connected to the piston rod, and the second end of the guide rod is connected to a limit block. The guide rod provides guidance for the running direction of the piston rod, and the limit block restricts the running distance of the piston rod.

[0012] As a further improvement of this utility model, the guide rod and the piston rod are integrally formed.

[0013] As a further improvement of this utility model, the limiting block and the guide rod are integrally formed.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features a suction hole and a suction tube connected to it, facilitating the removal of secretions from above the airbag. A one-way inflation valve on the indicator airbag facilitates inflation by medical personnel. The one-way inflation valve has a conical piston head with a sealing ring on the outside, and the air inlet is also conical and fits the sealing ring. This design allows for better sealing of the air inlet by the piston head and sealing ring, resulting in improved leak-proof performance and sealing. This enhances the airtightness of the one-way inflation valve, preventing airbag leakage, ensuring airbag support, and effectively separating the upper and lower airways, preventing secretions from the upper airway from flowing into the lower airway and lungs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the one-way inflation valve in a sealed state.

[0019] Figure 4This is a schematic diagram of the one-way inflation valve in the inflation state.

[0020] Reference numerals: 1. Guide tube; 2. Inflator; 3. Inflation tube; 4. Indicator inflator; 5. Suction tube; 6. Connector; 7. One-way inflation valve; 8. Housing; 9. Inlet; 10. Outlet; 11. Sealing cavity; 12. Piston rod; 13. Piston head; 14. Spring; 15. Sealing ring; 16. Protective cover; 17. Sputum collection trough; 18. Fixing element; 20. Guide rod; 21. Limiting block; 22. Suction hole. Detailed Implementation

[0021] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. The present invention will now be further described in conjunction with the accompanying drawings and embodiments:

[0022] Please see Figure 1-4 A leak-proof inhalable oxygen cannula includes a conduit 1, an air bag 2, an inflation tube 3, an indicator air bag 4, and a suction tube 5. The air bag is mounted on the conduit 1. One end of the inflation tube 3 is connected to the inside of the air bag 2, and the other end is led out from the outer wall of the conduit 1 and connected to the indicator air bag 4. The end of the conduit 1 near the air bag 2 has a suction hole 22. One end of the suction tube 5 is connected to the suction hole 22, and the other end is led out from the outer wall of the conduit 1. The indicator air bag 4 is equipped with a one-way inflation valve 7.

[0023] The one-way inflation valve 7 includes a housing 8, one end of which is provided with an air inlet 9 and the other end of which is provided with an air outlet 10. A sealing cavity 11 is formed inside the housing 8. A movable piston rod 12 is provided inside the sealing cavity 11. The piston rod 12 is provided with a piston head 13. A spring 14 is provided between the piston head 13 and the housing 8. The piston head 13 is conical. A sealing ring 15 is fitted on the outside of the piston head 13. The air inlet is set to be conical and adapted to the sealing ring.

[0024] Under normal circumstances, the sealing ring 15 completely blocks the air inlet 9. When inflating, the gas presses the sealing ring 15 to compress the spring 14. At this time, the air inlet 9 and the air outlet 10 are connected. After the spring 14 is restored, the sealing ring 15 completely blocks the air inlet 9 again.

[0025] The suction hole 22 and the suction tube 5 connected to the suction hole 22 facilitate the suction of secretions above the air bag; the one-way inflation valve 7 on the indicator air bag 4 facilitates the inflation operation by medical personnel.

[0026] The piston head 13 of the one-way inflation valve is set in a conical shape, and a sealing ring 15 is fitted on the outside of the piston head 13. The air inlet is also set in a conical shape that matches the sealing ring. This allows the piston head and the sealing ring to better seal the air inlet, making the one-way inflation valve more leak-proof and sealing. This improves the airtightness of the one-way inflation valve 7, avoids the problem of air leakage in the airbag, ensures the support of the airbag, effectively separates the upper and lower airways, and prevents secretions from the upper airway from flowing into the lower airway and lungs.

[0027] Furthermore, a protective cap 16 is provided at the end of the suction tube 5 away from the suction hole 22. The protective cap 16 can be used to close the suction tube 5 when suction is not required.

[0028] Furthermore, a sputum storage groove 17 is provided at one end of the airbag near the suction hole 22. By providing the sputum storage groove 17 on the airbag, the secretions above the airbag can be temporarily stored, preventing the secretions on the airbag from leaking into the lower respiratory tract through the folds between the airbag wall and the tracheal wall; at the same time, the secretions on the airbag can be suctioned out using the suction tube 5 connected to the suction hole 22.

[0029] Furthermore, the conduit 1 is provided with a fixing member 18.

[0030] Furthermore, a connector 6 is installed at one end of the conduit 1.

[0031] like Figure 3 and 4 As shown, a guide rod 20 is connected to the top of the piston rod 12. The first end of the guide rod 20 is connected to the piston rod 12, and the second end of the guide rod 20 is connected to a limiting block 21. The guide rod 20 provides guidance for the running direction of the piston rod 12, and the limiting block 21 limits the running distance of the piston rod 12.

[0032] Furthermore, the guide rod 20 and the piston rod 12 are integrally formed.

[0033] Furthermore, the limiting block 21 and the guide rod 20 are integrally formed.

[0034] The main functions of this utility model are:

[0035] This invention features a suction hole and a suction tube connected to it, facilitating the removal of secretions from above the airbag. A one-way inflation valve on the indicator airbag facilitates inflation by medical personnel. The one-way inflation valve has a conical piston head with a sealing ring, and the air inlet is also conical to fit the sealing ring. This design ensures a better seal between the piston head and the sealing ring, improving the leak-proof performance and sealing of the one-way inflation valve. This enhances the airtightness of the one-way inflation valve, preventing airbag leakage, ensuring airbag support, and effectively separating the upper and lower airways, preventing secretions from the upper airway from flowing into the lower airway and lungs.

[0036] In the description of this utility model, it should be understood that the terms "upper end face", "lower end face", "top", "bottom", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model. Therefore, they should not be construed as limiting the actual direction of use of this utility model.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A leak-proof oxygen inhalation tube sleeve, characterized in that: The device includes a conduit, an airbag, an inflation tube, an indicator airbag, and a suction tube. The airbag is mounted on the conduit. One end of the inflation tube communicates with the interior of the airbag, and the other end extends from the outer wall of the conduit and connects to the indicator airbag. A suction hole is opened at the end of the conduit near the airbag. One end of the suction tube communicates with the suction hole, and the other end extends from the outer wall of the conduit. The indicator airbag is equipped with a one-way inflation valve. The one-way inflation valve includes a housing. One end of the housing has an air inlet, and the other end has an air outlet. A sealed cavity is formed inside the housing. A movable piston rod is provided inside the sealed cavity. The piston rod has a piston head. A spring is provided between the piston head and the housing. The piston head is conical, and a sealing ring is fitted around the piston head. The air inlet is conical and adapted to the sealing ring.

2. The leak-proof oxygen inhalation tube sleeve according to claim 1, characterized in that: A protective cap is provided at the end of the suction tube away from the suction hole.

3. The leak-proof oxygen inhalation tube sleeve according to claim 1, characterized in that: The airbag has a sputum storage groove at the end near the suction hole.

4. The leak-proof oxygen inhalation tube sleeve according to claim 1, characterized in that: The catheter is equipped with a fixing element.

5. The leak-proof oxygen inhalation tube sleeve according to claim 1, characterized in that: A connector is installed at one end of the conduit.

6. The leak-proof oxygen inhalation tube sleeve according to claim 1, characterized in that: A guide rod is connected to the top of the piston rod, the first end of the guide rod is connected to the piston rod, and the second end of the guide rod is connected to a limit block.

7. The leak-proof oxygen inhalation tube sleeve according to claim 6, characterized in that: The guide rod and piston rod are integrally formed.

8. The leak-proof oxygen inhalation tube sleeve according to claim 7, characterized in that: The limiting block and the guide rod are integrally formed.