CN217339676U - Trachea cannula capable of automatically discharging phlegm by one-way airflow - Google Patents
Trachea cannula capable of automatically discharging phlegm by one-way airflow Download PDFInfo
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- CN217339676U CN217339676U CN202220061454.XU CN202220061454U CN217339676U CN 217339676 U CN217339676 U CN 217339676U CN 202220061454 U CN202220061454 U CN 202220061454U CN 217339676 U CN217339676 U CN 217339676U
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Abstract
The utility model belongs to the technical field of medical instrument, concretely relates to trachea cannula of automatic sputum discharging of one-way air current. The catheter comprises a catheter body, wherein an elastic diaphragm is arranged in the catheter body, the inner cavity of the catheter is divided into an expiration channel and an inspiration channel by the elastic diaphragm, and a one-way valve is arranged at the far lung end of the inspiration channel. There is an elastic diaphragm at pipe body center, falls into inspiratory channel and two independent passageways of expiratory channel with the pipe, and in respiratory cycle, the gas of exhalation can be lasted and discharged to external by the expiratory channel, and the kinetic energy of air current makes secretion and sputum in the respiratory track continuously flow to external unilaterally, plays automatic sputum discharging function, eliminates or has reduced the effect that the intubate was blocked to the phlegm bolt, improves patient's comfort level.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to trachea cannula of automatic sputum discharging of one-way air current.
Background
Trachea cannula is an important measure for ensuring unobstructed respiratory tract and rescuing ventilation dysfunction. The trachea cannula replaces the trachea to form an airway, and plays an important role in rescuing life and reducing the fatality rate. Cilia at the top end of columnar epithelial cells on the mucous membrane layer of the tracheal wall have the functions of clearing respiratory secretion and sputum and can promote the discharge of the sputum. However, the currently used tracheal cannula lacks a sputum discharging function, and sputum returns and stays in the trachea under the dual actions of airflow and gravity during inspiration, so that the sputum is difficult to discharge; and trachea cannula stimulates the mucus secretion of respiratory tract goblet cells, increases the sputum volume, improves the possibility of respiratory tract infection and respiratory tract obstruction, and also increases the workload of clinical care, so that a trachea cannula with the sputum excretion function is urgently needed.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the above-mentioned prior art, the utility model provides an automatic trachea cannula of sputum discharging of one-way air current to specifically disclose following technical scheme:
the trachea cannula capable of automatically discharging phlegm by one-way airflow comprises a catheter body, wherein an elastic diaphragm is arranged in the catheter body, the inner cavity of the catheter is divided into an expiration channel and an inspiration channel by the elastic diaphragm, and a one-way valve is arranged at the far lung end of the inspiration channel.
Further, exhale the passageway with the inspiration passageway forms the branch at the far lung end of pipe body, breathing machine attach fitting is installed to the far lung end outlet department of inspiration passageway, the far lung end outlet department of expiration passageway is provided with the latex film, the one end of latex film is connected with the tip lateral wall of exhaling the passageway, and the other end is flexible free end.
Further, the cross section of the catheter body is an ellipse, and the ratio of the long axis to the short axis of the ellipse is 5/4.
Furthermore, the elastic diaphragm divides the inner cavity of the catheter into an expiration channel and an inspiration channel along the short axis of the cross section of the inner cavity of the catheter, and the width of the elastic diaphragm is greater than the length of the short axis of the cross section of the inner cavity of the catheter and less than 1/2 of the perimeter of the cross section of the inner cavity of the catheter.
Further, a cuff is fixed at the proximal lung end of the catheter body and communicated with a cuff catheter, and the free end of the cuff catheter extends to the distal lung end along the catheter body.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the cross section of the catheter body of the utility model is oval, the ratio of the long axis to the short axis is 5/4, the contact surface of the catheter body and the tracheal mucosa is increased, the pressure of the catheter body to the tracheal mucosa is dispersed, the mucosa stimulation caused by the pressure is reduced, and the comfort level of the patient is improved;
the elastic diaphragm is arranged in the center of the catheter body, the catheter is divided into two independent channels, namely an inspiration channel and an expiration channel, in a breathing cycle, expired gas can be continuously exhausted from the expiration channel to the outside, and secretion and sputum in a respiratory tract continuously flow in a single direction to the outside by the kinetic energy of airflow, so that the automatic sputum excretion function is achieved, the effect of blocking the cannula by a sputum plug is eliminated or reduced, and the time for carrying the catheter can be prolonged;
the width of the elastic diaphragm is larger than the length of the short axis of the cross section of the catheter body and smaller than one half of the perimeter of the cross section of the catheter body, when the catheter body is seen from the cross section of the catheter body, the elastic diaphragm is positioned in the middle of the inner cavity of the catheter body in an S shape in a resting state, positive pressure ventilation is applied to the respirator during inspiration, a one-way valve of an inspiration channel is opened, the air pressure in the inspiration channel is higher than the air pressure in an expiration channel, the diaphragm deviates to the expiration channel under the action of the air flow, the thoracic cage contracts and moves during expiration, the pressure in the lung is increased and exceeds the atmospheric pressure, the elastic diaphragm deviates to the inspiration channel under the action of the air flow, the channel is enlarged during ventilation, and the ventilation efficiency is greatly increased due to the design that the channel is reduced during non-ventilation;
the latex film is arranged at the outlet of the far lung end of the expiration channel, and the expiration airflow in expiration can break away the latex film and be discharged, and can prevent the backflow of the airflow.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional view of the catheter body of the present invention.
Fig. 3 is a schematic view of a one-way valve in an inspiratory state.
Fig. 4 is a schematic view of a one-way valve in an expiratory condition.
1-catheter body, 2-elastic diaphragm, 3-expiration channel, 4-inspiration channel, 5-one-way valve, 6-respirator connector, 7-latex film, 8-cuff and 9-cuff catheter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, an automatic trachea cannula of sputum discharging of one-way air current, including pipe body 1, be provided with elasticity diaphragm 2 in the pipe body 1, elasticity diaphragm 2 separates the pipe inner chamber for expiration passageway 3 and inspiration channel 4, the far lung end of inspiration channel 4 is provided with one-way valve 5, expiration passageway 3 with inspiration channel 4 forms the branch at the far lung end of pipe body 1, breathing machine attach fitting 6 is installed to the far lung end outlet department of inspiration channel 4, the far lung end outlet department of expiration channel 3 is provided with latex film 7, latex film 7's one end and the tip lateral wall of expiration passageway are connected, and the other end is flexible free end.
When the sputum and the secretion are exhausted by the expiration channel 3, the air flow drives the sputum and the secretion to be exhausted, the outlet of the far lung end of the expiration channel 3 can be connected with a sputum storage device for storing the exhausted sputum, and the latex film 7 of the outlet of the far lung end of the expiration channel can ensure that the sputum and the secretion are exhausted smoothly and can prevent the sputum and the secretion from flowing backwards; the breathing channel 4 is connected with the breathing machine through the breathing machine connector 6, when breathing in, oxygen supplied by the breathing machine enters into a human body through the breathing channel 4, and the arrangement of the one-way valve 5 can ensure that the gas flowing direction in the breathing channel 4 can only flow from the far lung end to the near lung end, so that the backflow is prevented.
In this embodiment, the cross section of catheter body 1 is oval, and the ratio of oval major axis and minor axis is 5/4, has increased the contact surface of catheter body 1 and trachea mucosa, has disperseed catheter body 1 to the pressure of trachea mucosa, has reduced the mucosa stimulation that pressure arouses, has improved patient's comfort level.
In this embodiment, the elastic diaphragm 2 divides the catheter lumen into an exhalation passage 3 and an inhalation passage 4 along the short axis of the cross section of the catheter lumen, and the width of the elastic diaphragm 2 is greater than the length of the short axis of the cross section of the catheter lumen and less than 1/2 of the perimeter of the cross section of the catheter lumen.
Seen from the cross section of the catheter body 1, the elastic diaphragm 2 is positioned in the middle of the catheter inner cavity in a resting state and is S-shaped. When breathing in, the respirator applies positive pressure to ventilate, the one-way valve 5 of the breathing in channel 4 is opened, the air pressure in the breathing in channel 4 is higher than the air pressure in the breathing out channel 3, and the diaphragm deviates to the breathing out channel 3 under the action of the air flow. During expiration, the thorax contracts and moves, so that the pressure in the lung is increased and exceeds the atmospheric pressure. The elastic diaphragm 2 is deflected by the air flow towards the suction channel 4. This design, with larger passages when vented and smaller passages when not vented, greatly increases the efficiency of venting.
In this embodiment, the near lung end of pipe body 1 is fixed with the pipe cuff 8, connect the pipe cuff 9 on the pipe cuff 8, the free end of pipe cuff 9 extends to far away lung end along pipe body 1, can aerify pipe cuff 8 through pipe cuff 9, can block in the trachea after 8 inflatable packer cuffs inflate to realize fixedly to pipe body 1, prevent that pipe body 1 from removing in the trachea.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (5)
1. The trachea cannula capable of automatically discharging phlegm by one-way airflow is characterized by comprising a catheter body, wherein an elastic diaphragm is arranged in the catheter body, the inner cavity of the catheter is divided into an expiration channel and an inspiration channel by the elastic diaphragm, and a one-way valve is arranged at the far lung end of the inspiration channel.
2. The trachea cannula capable of automatically discharging phlegm through one-way airflow according to claim 1, wherein the expiration channel and the inspiration channel are branched at the far lung end of the catheter body, a respirator connector is installed at the far lung end outlet of the inspiration channel, a latex film is arranged at the far lung end outlet of the expiration channel, one end of the latex film is connected with the end side wall of the expiration channel, and the other end of the latex film is a flexible free end.
3. A one-way air flow automatic sputum ejection endotracheal tube according to claim 1, characterized in that the cross section of the tube body is an ellipse, and the ratio of the major axis to the minor axis of the ellipse is 5/4.
4. A one-way airflow automatic sputum ejection endotracheal tube according to claim 3, characterized in that the elastic diaphragm divides the catheter lumen into an expiratory channel and an inspiratory channel along the short axis of the catheter body cross section, the width of the elastic diaphragm is larger than the length of the short axis of the catheter body cross section and smaller than 1/2 of the circumference of the catheter body cross section.
5. A one-way air flow automatic sputum ejection endotracheal tube according to claim 1, characterized in that the proximal lung end of the tube body is fixed with a cuff, the cuff is connected with a cuff tube, and the free end of the cuff tube extends along the tube body to the distal lung end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220061454.XU CN217339676U (en) | 2022-01-11 | 2022-01-11 | Trachea cannula capable of automatically discharging phlegm by one-way airflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220061454.XU CN217339676U (en) | 2022-01-11 | 2022-01-11 | Trachea cannula capable of automatically discharging phlegm by one-way airflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217339676U true CN217339676U (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220061454.XU Active CN217339676U (en) | 2022-01-11 | 2022-01-11 | Trachea cannula capable of automatically discharging phlegm by one-way airflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217339676U (en) |
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2022
- 2022-01-11 CN CN202220061454.XU patent/CN217339676U/en active Active
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