Medical extended nasal oxygen cannula

Abstract

The utility model discloses a medical extension type nasal oxygen tube which comprises an extension tube, the extension tube is inserted between an oxygen inhalator and a nasal oxygen tube, one end of the extension tube is provided with a quick connector matched with an oxygen output end connector of the oxygen inhalator, and the other end of the extension tube is provided with a two-way quick connector matched with an oxygen inlet tube of the nasal oxygen tube. Filtering pieces are arranged in the quick-plug connector and the two-way quick-plug connector, and a dustproof plug is arranged at the end, away from the extension pipe, of the two-way quick-plug connector. Compared with the prior art, the novel nasal oxygen cannula is used as an auxiliary tool for medical care, the medical care work is greatly facilitated, the extension connection of an oxygen pipeline between the nasal oxygen cannula and an oxygen inhalator can be realized through the extension tube, the problem of continuous oxygen supply for a patient with a bed is solved, the design of the filter sheet in the joint can play a role in filtering fine solid particles in oxygen, and the service life of the filter sheet is prolonged. Medical oxygen in the extension tube is ensured to be clean, the dustproof plug plays a dustproof role, the safety of oxygen supply is improved, and the nasal oxygen cannula can be directly used after being inserted next time.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a medical extended nasal oxygen tube. Background Technology

[0002] Disposable nasal cannulas are routine medical consumables used in medical institutions for low-flow nasal oxygen administration to critically ill patients or those requiring oxygen therapy. To improve patients' blood oxygen saturation, oxygen inhalers and nasal cannulas are often used together in emergency situations or hospitalizations to create a low-flow oxygen delivery system. To use, first, install the oxygen inhaler onto the oxygen supply terminal connector on the device above the bed. Then, remove the disposable nasal cannula from its bag and connect it to the oxygen output port of the oxygen inhaler. Due to manufacturer-registered product specifications, most nasal cannulas used in hospitals are standard sizes, with lengths limited to 1.8 to 2.5 meters, suitable only for patients in fixed beds. For patients temporarily added to wards or requiring additional treatment, the shorter nasal cannula length makes it impossible to extend its use for these patients. When patients in extra beds require emergency oxygen supply, only temporary oxygen tubing or oxygen bags can be used for treatment. This results in short supply times, unstable oxygen pressure, and severely impacts treatment effectiveness. More importantly, the reliability of temporary oxygen tubing is low, as it is prone to detachment, posing safety risks. To address the needs of clinical treatment and the existing technical shortcomings of nasal oxygen tubing, a dedicated extension tube for nasal oxygen tubing is designed. This provides clinicians with a safe, reliable, convenient, quick, and economical extended nasal oxygen tubing, possessing broad market prospects and significant clinical application value. Utility Model Content

[0003] The purpose of this invention is to provide a medical extended nasal oxygen tube that solves the above-mentioned problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a medical extended nasal oxygen tube, comprising an extension tube, which is inserted between an oxygen inhaler and a nasal oxygen tube. One end of the extension tube is provided with a quick-connect fitting that matches the oxygen output interface of the oxygen inhaler, and the other end of the extension tube is provided with a two-way quick-connect fitting that matches the oxygen inlet tube of the nasal oxygen tube. Both the quick-connect fitting and the two-way quick-connect fitting are provided with filter elements. The end of the two-way quick-connect fitting away from the extension tube is provided with a dustproof plug, and the dustproof plug is detachably connected to the two-way quick-connect fitting.

[0005] Preferably, the two-way quick-connect fitting includes a straight body with an oxygen channel laterally opened. The straight body has bayonets at both ends, and annular metal buckles are provided inside the bayonets. The metal buckles have a ring of locking claws. A pressure plate is provided inside the bayonets to open the claws for disengagement. The end of the pressure plate is engaged in the bayonets and moves back and forth along the opening direction of the bayonets. The pressure plate has a through hole for easy insertion of pipelines.

[0006] Preferably, the oxygen channel of the straight section is provided with sealing rings at both ends to pre-tighten and seal the pipeline, and the sealing rings are located near the bayonet.

[0007] Preferably, the bayonet has an annular limiting protrusion on its port, and the pressure plate has a limiting boss at its bottom that matches the annular limiting protrusion. The pressure plate is engaged with the bayonet through the limiting protrusion.

[0008] Preferably, the quick-connect fitting consists of a hollow tube and a plug. The plug is fixed to the middle of the outer wall of the tube, the extension tube is fitted onto the end of the tube, and the front end of the tube is inserted into the oxygen output port of the oxygen inhaler.

[0009] Preferably, the front end of the tube has a connecting tube with the same diameter as the nasal oxygen tube.

[0010] Preferably, there are two or more extension tubes, which are connected end to end by two quick-connect fittings and quick-connect fittings.

[0011] Preferably, the filter is disposed in the middle of the oxygen channel of the two quick-connect fittings and the quick-connect fittings respectively.

[0012] Preferably, the dust plug is provided with a buckle cap and a buckle strap, one end of the buckle strap is fixedly connected to the buckle cap, and the other end is fixed to the outer tube wall of the two-way quick connector.

[0013] Preferably, the inner wall of the extension tube is shaped like a plum blossom.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: As a medical auxiliary tool, this utility model greatly facilitates medical and nursing work. In emergencies, the extension tube allows for the extension connection between the nasal oxygen tube and the oxygen inhaler, solving the problem of continuous oxygen supply for patients in extra beds and those with special needs. The filter design inside the connector can filter out fine solid particles in the oxygen, ensuring the cleanliness of the medical oxygen in the extension tube. The dustproof plug prevents dust and increases the safety of oxygen supply. When oxygen supply is not required by the extension tube, the front end of the two-way quick-connect connector can be blocked with the dustproof plug. When oxygen extension tube needs to be added, the dustproof plug is opened, the oxygen inhaler is connected, and the new nasal oxygen tube is inserted for oxygen supply. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the quick-connect connector of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the two-way quick-connect connector of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the extension tube of this utility model.

[0019] In the diagram: 1. Two-way quick-connect fitting; 11. Straight body; 12. Pressure plate; 13. Metal buckle; 14. Sealing ring; 2. Extension tube; 3. Quick-connect fitting; 31. Tube body; 32. Plug body; 4. Fastening strap; 5. Fastening cap; 6. Dustproof plug; 7. Filter plate. Detailed Implementation

[0020] The present invention will be further described below: a medical extended nasal oxygen cannula, see [link to description]. Figure 1 The invention includes an extension tube 2, which is inserted between an oxygen inhaler and a nasal oxygen tube. One end of the extension tube 2 has a quick-connect fitting 3 that matches the oxygen output interface of the oxygen inhaler, and the other end has a two-way quick-connect fitting 1 that matches the oxygen inlet tube of the nasal oxygen tube. Both the quick-connect fitting 3 and the two-way quick-connect fitting 1 have filters 7 inside their oxygen channels. The end of the two-way quick-connect fitting 1 away from the extension tube 2 has a dust plug 6, which is detachably connected to the two-way quick-connect fitting 1. This invention, as a medical auxiliary tool, greatly facilitates medical work. In emergencies, the extension tube allows for an extended connection between the nasal oxygen tube and the oxygen inhaler, solving the problem of continuous oxygen supply for patients in extra beds. The quick-connect fitting 3 is compatible with the oxygen output interface of the oxygen inhaler, and the two-way quick-connect fitting 1 is compatible with the nasal oxygen tube, enabling quick installation and extended connection between the nasal oxygen tube and the oxygen inhaler. The design of the filter 7 inside the connector ensures the cleanliness of the extension tube 2 and also filters out fine dust in the oxygen. The dustproof plug 6 prevents dust from entering the oxygen supply. When oxygen supply is not needed, the front end of the two-way quick-connect connector 1 can be blocked with the dustproof plug 6. After the patient arrives at the extra bed, the dustproof plug 6 and the oxygen inhaler can be opened, and a new nasal oxygen tube can be inserted to supply oxygen.

[0021] The two-way quick-connect connector 1 includes a straight body 11, see [link / reference] Figure 2The straight section 11 has a transverse oxygen channel. Both ends of the straight section 11 have bayonets, and each bayonet has a ring-shaped metal buckle 13. The metal buckle 13 is a conventional structure, and it has a ring of locking claws. A pressure plate 12 is located within the bayonet to open the claws and release them. The end of the pressure plate 12 engages with the bayonet and moves back and forth along the bayonet's opening direction. The pressure plate 12 has a through hole for easy tube insertion. The design of the metal buckles 13 at both ends of the two quick-connect fittings 1 allows for quick installation of the extension tube 2 and the nasal oxygen tube. When the extension tube 2 or the nasal oxygen tube is inserted, the quick-connect fitting 3 automatically locks itself via the claws on the metal buckles 13. For disassembly, simply press the pressure plate 12 to open the claws, and pull it outwards – a very convenient and quick process.

[0022] To achieve the engagement of the pressure plate 12 with the bayonet, the following method can be adopted: the bayonet port is provided with an annular limiting protrusion, and the pressure plate 12 is provided with a limiting boss at the bottom that matches the annular limiting protrusion. The pressure plate 12 is engaged with the bayonet through the limiting protrusion.

[0023] The oxygen channel of the straight body 11 is provided with sealing rings 14 at both ends to pre-tighten and seal the pipeline. The pipeline is an extension tube 2 or a nasal oxygen tube. The sealing rings 14 are located near the bayonet and can play an airtight role to prevent air leakage at both ends of the two-way quick connector 1.

[0024] The quick-connector 3 consists of a hollow tube 31 and a plug 32, see [reference]. Figure 3 The plug 32 is fixed to the middle of the outer wall of the tube 31, the extension tube 2 is fitted onto the end of the tube 31, the front end of the tube 31 is inserted into the oxygen output port of the oxygen inhaler, and the plug 32 is used to seal the oxygen output port.

[0025] Furthermore, the two-way quick-connector 1 and quick-connector 3 designed in this utility model can be connected to each other. Since the plug 32 is fixed to the middle of the outer wall of the tube 31, the front end of the tube 31 is exposed. The front end of the tube 31 can be directly inserted into the two-way quick-connector 1 of another extension tube 2 and locked, thus easily achieving the connection of two or more extension tubes 2. This can further increase the extension distance of the nasal oxygen tube and adapt to the needs of on-site medical care. The length of the extension tube 2 can be designed in multiple models as needed.

[0026] The dust plug 6 is provided with a buckle cap 5 and a buckle 4. One end of the buckle 4 is fixedly connected to the buckle cap 5, and the other end is fixed to the outer tube wall of the two-way quick connector 1 to prevent the dust plug 6 from falling off. After use, the dust plug 6 is plugged in to prevent dust from entering the two-way quick connector 1 for the next use.

[0027] Since the extension tube may sometimes fail to supply oxygen due to bending, the inner wall of extension tube 2 can be designed to be corrugated, with a quincunx-shaped cross-section. (See attached image.) Figure 4 The corrugated structure can increase the bending resistance of the extension tube 2 and prevent the extension tube 2 from failing to supply oxygen due to bending.

[0028] The above provides a detailed description of a medical extended nasal oxygen tube provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, based on the idea of ​​this utility model, there will be changes in the specific implementation and application scope. Changes and improvements to this utility model are possible without exceeding the concept and scope specified in the appended claims. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A medical extension nasal oxygen cannula, characterized by: The application relates to an oxygen inhaler and a nasal oxygen tube.

2. The medical extended nasal oxygen cannula of claim 1, wherein: The two-way quick connector comprises a straight-through body, oxygen channels are horizontally arranged in the straight-through body, and sockets are arranged at the two ends of the straight-through body; a ring-shaped metal buckle is arranged in the socket; a plurality of locking claws are arranged on the metal buckle; a pressing disc is arranged in the socket and used for supporting the locking claws to be separated; the end of the pressing disc is clamped in the socket and moves forward and backward along the opening direction of the socket; and a through hole is arranged in the pressing disc and used for facilitating pipeline insertion.

3. The medical extended nasal oxygen cannula of claim 2, wherein: The oxygen channels of the straight-through body are provided with sealing rings at the two ends and used for pre-tightening and sealing the pipeline.

4. The medical extended nasal oxygen cannula of claim 2, wherein: An annular limiting protrusion is arranged on the port of the socket; the bottom of the pressing disc is provided with a limiting boss matched with the annular limiting protrusion; and the pressing disc is clamped in the socket through the limiting boss.

5. The medical extended nasal oxygen cannula of claim 1, wherein: The quick connector is composed of a hollow pipe body and a plug body; the plug body is fixed to the middle part of the outer wall of the pipe body; the extension pipe is sleeved on the end of the pipe body; and the pipe body is inserted into the oxygen output end interface of the oxygen inhaler.

6. The medical extended nasal oxygen cannula of claim 5, wherein: A connecting pipe is reserved at the front end of the pipe body, and the diameter of the connecting pipe is the same as that of the nasal oxygen tube.

7. The medical extended nasal oxygen cannula of claim 5, wherein: The extension pipe is two or more, and the extension pipes are connected in a head-to-tail mode through the two-way quick connectors and the quick connectors.

8. The medical extended nasal oxygen cannula of claim 1, wherein: The filter pieces are arranged in the middle parts of the oxygen channels of the two-way quick connectors and the quick connectors.

9. The medical extended nasal oxygen cannula of claim 1, wherein: A buckle cap and a buckle are arranged on the dustproof plug; one end of the buckle is fixedly connected with the buckle cap, and the other end is fixed to the outer pipe wall of the two-way quick connector.

10. The medical extended nasal prongs according to claim 1, wherein: The inner wall of the extension pipe is in the shape of plum blossom.

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