Nasal oxygen cannula

Abstract

The utility model provides a nasal oxygen cannula which comprises a nasal frame tube, a spacer is arranged in the nasal frame tube, the spacer divides an inner cavity of the nasal frame tube into an oxygen supply cavity and a monitoring cavity which are not communicated, the outer end of the oxygen supply cavity is connected with an oxygen supply extension tube, and the outer end of the monitoring cavity is connected with a monitoring connecting tube; an oxygen supply nasal cannula is arranged on one side, corresponding to the nostrils of the human body, of the oxygen supply cavity, and an oxygen outlet hole is formed in the position, close to the oxygen supply nasal cannula, of the cavity wall of the oxygen supply cavity; a monitoring nose cannula is arranged on one side, corresponding to the nostrils of the human body, of the monitoring cavity, a monitoring extension tube is connected beside the monitoring cavity, and the outer end of the monitoring extension tube is communicated with an oral cavity monitoring head. In the nasal oxygen tube structure, the oxygen outlet hole is formed in the oxygen supply cavity of the nasal frame tube close to the oxygen supply nasal intubation tube, and the oxygen outlet hole and the oxygen supply nasal intubation tube supply oxygen to a patient at the same time, so that the oxygen flow of the patient is kept, and the oxygen supply pressure of single-hole oxygen supply, namely oxygen supply by the oxygen supply nasal intubation tube independently is reduced; the problem that a patient feels uncomfortable due to the fact that single-hole oxygen supply pressure impacts nasal mucosa is solved.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment, in particular to a nasal oxygen tube. Background Art

[0002] A nasal oxygen cannula is a medical device used to administer oxygen therapy, delivering oxygen from the patient's nasal cavity to the respiratory tract to aid breathing. In clinical medical monitoring, end-tidal carbon dioxide is a crucial physiological parameter. Clinically, end-tidal carbon dioxide monitoring is performed to assess a patient's basic vital signs.

[0003] Currently, conventional nasal oxygen cannulae utilize two nasal cannulas: one inserted into one nostril to supply oxygen, and the other inserted into the other nostril to collect exhaled carbon dioxide. This single-tube oxygen supply requires high pressure to maintain the patient's required oxygen level, which impacts the nasal mucosa and causes discomfort. Furthermore, some patients use their mouths to assist with self-breathing, exhaling some carbon dioxide. Therefore, monitoring solely through the nasal cavity to collect exhaled carbon dioxide is inherently inaccurate, and the resulting data may not accurately reflect the patient's vital signs. Utility Model Content

[0004] In view of this, the utility model aims to propose a nasal oxygen cannula to improve the accuracy of monitoring the patient's exhaled carbon dioxide, while solving the problem of discomfort caused by the high pressure of the single-hole oxygen supply impacting the nasal mucosa.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A nasal oxygen cannula comprises a nasal tube, wherein a septum is provided in the nasal tube, the septum dividing the inner cavity of the nasal tube into an oxygen supply cavity and a monitoring cavity which are not connected, the outer end of the oxygen supply cavity being connected to an oxygen supply extension tube, and the outer end of the monitoring cavity being connected to a monitoring connecting tube;

[0007] An oxygen supply nasal cannula is provided on one side of the oxygen supply cavity corresponding to the human nostril, and an oxygen outlet hole is provided on the wall of the oxygen supply cavity near the position of the oxygen supply nasal cannula;

[0008] A monitoring nasal cannula is provided on one side of the monitoring cavity corresponding to the human nostril. The monitoring cavity is connected to a monitoring extension tube, and the outer end of the monitoring extension tube is connected to an oral monitoring head.

[0009] Furthermore, there are two oxygen outlet holes, which are respectively arranged on the left and right sides of the oxygen supply nasal cannula.

[0010] Furthermore, the oral monitoring head is a conical tube structure with an opening facing outward, and a plurality of side holes are provided on its side wall.

[0011] Furthermore, a positioning piece is provided upwardly in the middle of the nose bridge tube.

[0012] Further, a Luer detection joint is provided at one end of the monitoring connecting pipe away from the nasal frame pipe.

[0013] Further, an oxygen supply joint is provided at one end of the oxygen supply extension pipe away from the nasal frame pipe.

[0014] Further, the oxygen supply extension pipe and the monitoring connecting pipe are bundled in the adjusting ring, and the oxygen supply extension pipe and the monitoring connecting pipe can slide relative to the adjusting ring.

[0015] Compared with the prior art, the nasal oxygen tube of the present utility model has the following advantages:

[0016] (1) In the structure of the nasal oxygen tube of the present utility model, an oxygen outlet hole is opened in the oxygen supply cavity of the nasal frame pipe near the oxygen supply nasal cannula. The oxygen outlet hole and the oxygen supply nasal cannula supply oxygen to the patient at the same time, enabling the patient to maintain the oxygen flow rate while reducing the oxygen supply pressure of single-hole oxygen supply, that is, the oxygen supply by the oxygen supply nasal cannula alone, and solving the problem that the large single-hole oxygen supply pressure impacts the nasal mucosa and causes discomfort to the patient.

[0017] (2) By applying the nasal oxygen tube of the present utility model, it is possible to collect carbon dioxide exhaled from the patient's mouth and nose at the same time, and first converge into the monitoring cavity and then enter the monitoring device, improving the accuracy of monitoring the carbon dioxide exhaled by the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic diagram of a nasal oxygen tube according to an embodiment of the present utility model;

[0020] Figure 2 is a schematic diagram of the structure of the nasal frame pipe in this embodiment;

[0021] Figure 3 is a schematic diagram of the structure of the oral monitoring head in this embodiment.

[0022] Description of the reference numerals:

[0023] 1 - nasal frame pipe; 101 - oxygen supply cavity; 102 - monitoring cavity; 2 - monitoring extension pipe; 3 - oral monitoring head; 31 - carbon dioxide collection port; 32 - side hole; 4 - monitoring connecting pipe; 5 - oxygen supply extension pipe; 6 - oxygen supply joint; 7 - adjusting ring; 8 - Luer detection joint; 9 - oxygen supply nasal cannula; 10 - monitoring nasal cannula; 11 - positioning piece; 12 - spacer; 13 - oxygen outlet hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figure 1 、 Figure 2 As shown, a nasal oxygen cannula includes a nasal tube 1, a monitoring connecting tube 4, an oxygen supply extension tube 5 and an adjustment ring 7. A septum 12 is provided in the nasal tube 1, which divides the inner cavity of the nasal tube 1 into an unconnected oxygen supply cavity 101 and a monitoring cavity 102. The monitoring connecting tube 4 is connected to the port of the nasal tube 1 corresponding to the monitoring cavity 102, and the outer port of the monitoring connecting tube 4, that is, the port away from the nasal tube 1, is provided with a Luer detection connector 8. The oxygen supply extension tube 5 is connected to the port of the nasal tube 1 corresponding to the oxygen supply cavity 101, and the outer port of the oxygen supply extension tube 5, that is, the port away from the nasal tube 1, is provided with an oxygen supply connector 6.

[0026] An oxygen supply nasal cannula 9 is provided on one side of the oxygen supply cavity 101 corresponding to the human nostril. Oxygen outlet holes 13 corresponding to the human nostrils are respectively provided on the left and right sides of the oxygen supply nasal cannula 9. The oxygen supply extension tube 5 is connected to the oxygen supply cavity 101. The oxygen supply nasal cannula 9 is inserted into one nostril of the patient to provide oxygen to the patient. The oxygen outlet hole 13 provides auxiliary oxygen supply to the patient. In this structure, the oxygen outlet hole 13 plays a role of pressure division on the one hand, reducing the oxygen pressure of the oxygen supplied by the oxygen supply nasal cannula 9 alone, thereby preventing the high pressure of the oxygen supplied by the oxygen supply nasal cannula alone from impacting the nasal mucosa and causing discomfort to the patient. On the other hand, the oxygen outlet hole 13 plays a role of auxiliary oxygen supply. The auxiliary oxygen supply nasal cannula 9 provides oxygen to the patient and provides and maintains the required oxygen flow for the patient.

[0027] The monitoring connecting tube 4 is externally connected to the carbon dioxide monitoring device, and the monitoring connecting tube 4 is connected to the monitoring cavity 102. A monitoring nasal cannula 10 is provided on the side of the monitoring cavity 102 corresponding to the human nostril, and a monitoring extension tube 2 is provided on the side of the monitoring cavity 102 away from the monitoring nasal cannula 10. The outer end of the monitoring extension tube 2 is connected to an oral monitoring head 3. The oral monitoring head 3 is a tube structure, one port of which is connected to the monitoring extension tube 2, and the other port is a carbon dioxide collection port 31. The oral monitoring head 3 extends into the patient's mouth and collects carbon dioxide exhaled from the patient's mouth through the carbon dioxide collection port 31. The monitoring extension tube 2 is a hose structure with a length of about 3-5 cm. After wearing, the position of the oral monitoring head can be adjusted so that it extends into the patient's mouth at the most suitable position or angle without affecting the collection of carbon dioxide. The oral monitoring head 3 collects carbon dioxide exhaled from the patient's mouth. The monitoring nasal cannula 10 is inserted into one of the patient's nostrils (not the one where the oxygen supply nasal cannula 9 is inserted) to collect carbon dioxide exhaled from the patient's nasal cavity. The collected carbon dioxide from the mouth and nasal cavities is first combined into the monitoring chamber 102, then passed through the monitoring connecting tube 4 to the carbon dioxide monitoring device to monitor the patient's exhaled carbon dioxide status. This structure collects carbon dioxide exhaled from both the mouth and the nasal cavity, then combines them for monitoring, improving the accuracy of data analysis.

[0028] likeFigure 3 As shown, the oral monitoring head 3 has a porous collection head structure, and its shape is preferably a conical tube structure with an opening facing outward. A plurality of side holes 32 are provided on its side wall. The side holes 32 communicate with the inner cavity of the oral monitoring head 3. The side holes 32 and the carbon dioxide collection port 31 cooperate to collect the carbon dioxide gas exhaled from the patient's oral cavity. The oral monitoring head 3 adopts a porous collection head structure, which ensures that even if a single hole, such as the carbon dioxide collection port 31, is blocked, it will not affect the collection of the carbon dioxide exhaled from the oral cavity. That is, once the carbon dioxide collection port 31 is blocked, the side holes 32 will be used to collect carbon dioxide, ensuring the normal collection of the carbon dioxide exhaled from the oral cavity, and ultimately ensuring the accuracy of the monitoring of the carbon dioxide exhaled by the patient.

[0029] In the present utility model, a positioning piece 11 is provided upward at the middle position of the nasal bridge tube 1. The plane angle between the positioning piece 11 and the oxygen supply nasal cannula 9 is 90° - 120°. When worn, the positioning piece 11 abuts against the patient's nose to prevent the oxygen supply nasal cannula 9 and the monitoring nasal cannula 10 from flipping randomly.

[0030] In the present utility model, the monitoring connection tube 4 and the oxygen supply extension tube 5 are bundled in the adjustment ring 7. The adjustment ring 7 is provided with two through holes. One through hole corresponds to the oxygen supply extension tube 5, and the other through hole corresponds to the monitoring connection tube 4. The monitoring connection tube 4 and the oxygen supply extension tube 5 respectively pass through the corresponding through holes movably. The monitoring connection tube 4 and the oxygen supply extension tube 5 can slide relative to the adjustment ring 7 respectively. According to the wearing needs, the position of the adjustment ring 7 is adjusted. Since the adjustment ring 7 has a certain constraining effect on the oxygen supply extension tube 5 and the monitoring connection tube 4, it ensures the stable wearing of the nasal oxygen tube and prevents the nasal oxygen tube from falling off.

[0031] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A nasal oxygen tube, characterized in that: It includes a nose bridge tube (1), and a partition piece (12) is arranged inside the nose bridge tube (1). The partition piece (12) divides the inner cavity of the nose bridge tube into a non - communicating oxygen supply cavity (101) and a monitoring cavity (102). The outer end of the oxygen supply cavity (101) is connected to an oxygen supply extension tube (5), and the outer end of the monitoring cavity (102) is connected to a monitoring connection tube (4). An oxygen supply nasal cannula (9) is arranged on one side of the oxygen supply cavity (101) corresponding to the human nostril, and an oxygen outlet hole (13) is opened on the cavity wall of the oxygen supply cavity (101) near the oxygen supply nasal cannula (9). A monitoring nasal cannula (10) is arranged on one side of the monitoring cavity (102) corresponding to the human nostril. The monitoring cavity (102) is also connected in parallel with a monitoring extension tube (2), and an oral cavity monitoring head (3) is communicatedly arranged at the outer end of the monitoring extension tube (2).

2. The nasal oxygen tube according to claim 1, wherein: The number of the oxygen outlet holes (13) is two, which are respectively arranged on the left and right sides of the oxygen supply nasal cannula (9).

3. The nasal oxygen tube according to claim 1, characterized in that: The oral cavity monitoring head (3) is a conical tube structure with an opening facing outwards, and several side holes (32) are opened on its side wall.

4. The nasal oxygen tube according to claim 1, characterized in that: A positioning piece (11) is arranged upwards at the middle position of the nose bridge tube (1).

5. The nasal oxygen tube according to claim 1, characterized in that: A Luer detection joint (8) is arranged at one end of the monitoring connection tube (4) far away from the nose bridge tube (1).

6. The nasal oxygen tube according to claim 1, characterized in that: An oxygen supply joint (6) is arranged at one end of the oxygen supply extension tube (5) far away from the nose bridge tube (1).

7. The nasal oxygen tube according to claim 1, wherein: The oxygen supply extension tube (5) and the monitoring connection tube (4) are bundled in an adjusting ring (7), and the oxygen supply extension tube (5) and the monitoring connection tube (4) can slide relative to the adjusting ring (7).

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