CN210963450U - Tracheal catheter capable of monitoring carbon dioxide concentration above air bag - Google Patents

Abstract

The utility model relates to a can be used for monitoring endotracheal tube of gasbag top carbon dioxide concentration, endotracheal tube include pipe body, CO₂A monitoring tube, a moisture filter, a negative pressure suction tube, a water injection tube, an inflation tube and an air bag; the periphery of the far end of the catheter body is provided with a balloon; the near end of the catheter body is connected with a breathing machine; the interlayer of the catheter body is provided with a suction channel, an inflation channel, a suction channel and a cleaning channel; the suction channel is connected with a negative pressure suction tube; the inflation channel is connected with an inflation tube; the air suction channel is connected with CO₂Monitoring the pipe, and CO₂A moisture filter is arranged on the monitoring pipe; the suction channel is connected with a negative pressure suction tube; the cleaning channel is connected with a water injection pipe. Its advantages are: it is usable the utility model discloses endotracheal tube realizes the detection of the carbon dioxide concentration of gas between patient glottis and gasbag, and the dynamic evaluation endotracheal tube gasbag is to the airtight degree of patient's air flue to guide endotracheal tube gasbag pressure regulation and control, in order to do benefit to and realize patient's air flue with best endotracheal tube gasbag pressure and seal.

Description

A tracheal tube that can be used to monitor the carbon dioxide concentration above the balloon

technical field

The utility model relates to the technical field of medical devices, in particular to a tracheal catheter which can be used for monitoring the carbon dioxide concentration above a balloon.

Background technique

A tracheal tube is a medical device that is inserted into a patient's trachea/bronchus to create a temporary artificial breathing passage for patients, especially patients who cannot breathe on their own. The endotracheal tube is an effective means to ensure the patency of the airway and plays an extremely important role in the rescue process. However, if the pressure of the tracheal tube balloon is insufficient, the balloon will not seal the patient's airway tightly, resulting in low tidal volume during mechanical ventilation and leakage of secretions above the balloon to the lower respiratory tract along the balloon wall. If the pressure of the endotracheal tube balloon on the patient's airway is too high, it is easy to cause damage to the airway mucosa. At the same time, the airtightness of the endotracheal tube balloon is continuously and dynamically changed by various factors such as the type of the endotracheal tube, the shape and material of the airbag, and the pressure of the airbag must be dynamically adjusted to ensure the safe and effective sealing of the airway by the endotracheal tube balloon. However, the management method of the airbag tightness in the prior art is to maintain the pressure in the airbag at 25-30 cmH ₂ O recommended by various guidelines, which has obvious limitations. Recently, some scholars have proposed that monitoring the carbon dioxide concentration above the endotracheal tube balloon can help to determine the degree of airway tightness of the endotracheal tube balloon. Because the gas exhaled by the patient has a high concentration of carbon dioxide, if there is a leak between the air bag and the airway, the exhaled gas from the patient will enter between the air bag and the glottis along the leaked gap. The carbon dioxide concentration can realize the dynamic monitoring of the airtightness of the airbag, thereby guiding the regulation of the airbag pressure of the endotracheal tube.

Therefore, how to provide a tracheal tube that can be used to monitor the carbon dioxide concentration above the balloon is a technical problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a tracheal catheter which can be used to monitor the carbon dioxide concentration above the airbag.

For realizing the above-mentioned purpose, the technical scheme that the utility model takes is:

A tracheal catheter that can be used to monitor the carbon dioxide concentration above the airbag, the tracheal catheter comprises a catheter body, a _CO2 monitoring tube, a moisture filter, a negative pressure suction tube, a water injection tube, an inflation tube, and an airbag; the catheter body A balloon is installed on the outer periphery of the distal end of the catheter body; the proximal end of the catheter body is connected with a ventilator; the interlayer of the catheter body is provided with a suction channel, an inflation channel, an inhalation channel, and a cleaning channel; the inflation channel is connected to There is an inflation tube; the suction channel is connected with a CO ₂ monitoring tube, and the CO ₂ monitoring tube is provided with a moisture filter; the suction channel is connected with a negative pressure suction tube; the cleaning channel is connected with a water injection tube ; The suction channel, the inflation channel, the suction channel and the cleaning channel all run through the catheter body near the upper position of the airbag and communicate with the outside world.

As a preferred technical solution, the CO ₂ monitoring tube, the negative pressure suction tube, the water injection tube, and the inflation tube are all separated from the tube wall of the catheter body near the rear end of the catheter body, and the separated parts are The CO ₂ monitoring tube, the negative pressure suction tube, the water injection tube and the inflation tube are all located outside the catheter body.

As a preferred technical solution, the CO ₂ monitoring tube is provided with a CO ₂ analyzer.

As a preferred technical solution, there are two suction channels.

As a preferred technical solution, a manometer is provided on the inflatable tube.

As a preferred technical solution, the catheter body is in an arc shape.

As a preferred technical solution, the opening of the water injection pipe is arranged in front of the opening of the suction channel.

The utility model has the advantages of:

1. A tracheal catheter of the present invention that can be used to monitor the carbon dioxide concentration above the airbag can utilize the tracheal catheter of the present invention to realize the detection of the carbon dioxide concentration of the gas between the patient's glottis and the airbag, and dynamically evaluate the effect of the tracheal catheter airbag on the patient's gas. The degree of airway sealing can guide the regulation of the airway pressure of the endotracheal tube, so as to achieve the airway sealing of the patient with the best airway pressure of the endotracheal tube. .

2. The endotracheal tube is provided with a CO ₂ monitoring tube, and the CO ₂ monitoring tube is provided with a moisture filter. The effect of this design method is: the CO ₂ monitoring tube is a CO ₂ analyzer using the bypass method to extract the balloon and the CO ₂ monitoring tube. For the gas between the patient's glottis, analyze the CO ₂ concentration of the gas above the air bag to determine the airtightness of the air bag; the moisture filter filters the extracted gas for moisture, and then sends it to the CO ₂ analyzer to make the measurement accurate, and then It can more accurately judge the airtightness of the airbag.

3. The water injection pipe is designed, and the water injection pipe is connected with the cleaning channel, which can wet and dilute the secretions, so as to facilitate the removal of the secretions.

4. There are two suction channels. The effect of this design is: it realizes that there are two suction channels on one catheter body, that is, the structure of one tube and two channels is adopted, which reduces the probability of blockage. Even if one suction channel is blocked, The other suction channel can still be used continuously, which can fully discharge secretions and improve the suction effect of negative pressure.

Description of drawings

1 is a schematic structural diagram of a tracheal catheter of the present invention that can be used to monitor the carbon dioxide concentration above the airbag.

Figure 2 is a schematic cross-sectional view of the tracheal catheter of the present invention.

Detailed ways

The present utility model will be further described below in conjunction with the embodiments and with reference to the accompanying drawings.

The reference numerals and components involved in the drawings are as follows:

1. Catheter body 2. CO ₂ monitoring tube

3. Moisture filter 4. Negative pressure suction tube

5. Water injection pipe 6. Gas filling pipe

7. Airbag 8. Inhalation channel

9. Inflatable channel 10. Suction channel

11. Cleaning channel

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a tracheal catheter of the present invention that can be used to monitor the carbon dioxide concentration above the airbag 7 . A tracheal catheter that can be used to monitor the carbon dioxide concentration above the airbag 7, the tracheal catheter includes a catheter body 1, a CO ₂ monitoring tube 2, a moisture filter 3, a negative pressure suction tube 4, a water injection tube 5, a ventilator, an inflation Tube 6; the outer peripheral surface of the distal end of the catheter body 1 is provided with a balloon 7; the proximal end of the catheter body 1 is connected with a ventilator; the _CO2 monitoring tube 2, the negative pressure suction tube 4, the water injection tube 5. The inflation tube 6 is separated from the tube wall of the tube body 1 near the rear end of the tube body 1, and the separated part of the _CO2 monitoring tube 2, the negative pressure suction tube 4, the water injection tube 5, the inflation tube 6 Both are located outside the catheter body 1 .

Please refer to FIG. 2 , which is a schematic cross-sectional view of the tracheal catheter of the present invention. The interlayer of the catheter body 1 is provided with a suction channel 10, an inflation channel 9, a suction channel 8, and a cleaning channel 11; the suction channel 10 is connected with a negative pressure suction tube 4; the inflation channel 9 is connected with a Inflatable pipe 6; the suction channel 8 is connected with a CO ₂ monitoring pipe 2, and the CO ₂ monitoring pipe 2 is provided with a moisture filter 3; the cleaning channel 11 is connected with a water injection pipe 5; the suction channel 10. The inflation channel 9, the suction channel 8, and the cleaning channel 11 all pass through the catheter body 1 at a position close to the upper part of the airbag, and communicate with the outside world.

It should be noted in this example that:

The distal end of the catheter body 1 is connected with a ventilator, and performs mechanical ventilation.

The catheter body 1 is arc-shaped, and the arc-shaped catheter body 1 matches the physiological and anatomical structure of the respiratory tract, which can reduce the damage to the human respiratory tract wall.

The outer periphery of the distal end of the catheter body 1 is provided with an airbag 7, which is located at the position of the glottis airway in the use state, and is used for fixing the catheter body 1, sealing, preventing air leakage, ensuring the supply of tidal volume, preventing air leakage. Aspiration following reflux of oropharyngeal secretions and gastric contents.

The described tracheal catheter is provided with CO ₂ monitoring pipe 2, and the CO ₂ monitoring pipe 2 is provided with a moisture filter 3. The effect of this design method is: CO ₂ monitoring pipe 2 is a CO ₂ analyzer that utilizes the bypass method to pass through CO ₂ The monitoring tube 2 extracts the gas between the air bag 7 and the patient's glottis, analyzes the _CO concentration of the gas above the air bag 7, and determines the airtightness of the air bag 7 to the airway; the moisture filter 3 filters the extracted gas for moisture, and then sends it into the air bag 7. The CO ₂ analyzer makes the measurement accurate, and then more accurately determines the airtightness of the airbag 7 to the airway.

The interlayer of the catheter body 1 is provided with a suction channel 10 , an inflation channel 9 , a suction channel 8 and a cleaning channel 11 . This design makes the catheter body 1 have multiple functions, and each channel is arranged in the interlayer of the pipeline body, which does not affect the ventilation of the catheter body 1 .

The negative pressure suction tube 4 is communicated with the negative pressure suction channel 10, and is used to attract secretions. In order to more thoroughly attract secretions, a water injection tube 5 is designed in this embodiment, and the water injection tube 5 communicates with the cleaning channel 11. , can moisten and dilute the secretions, so as to facilitate the removal of secretions.

The number of suction channels 10 is two, and the effect of this design is: two suction channels 10 are realized on one catheter body 1, that is, the structure of one tube and two channels is adopted, which reduces the probability of blockage, even if one suction channel 10 is blocked. In other cases, the other suction channel 10 can still be used continuously, which can fully discharge the secretions and improve the suction effect of negative pressure.

The inflation tube 6 is connected with an inflation channel 9, and the inflation channel 9 is directly communicated with the airbag 7, so that the size of the airbag 7 can be controlled, and functions such as good fixation and prevention of air leakage are facilitated.

The _CO2 monitoring tube 2, the negative pressure suction tube 4, the water injection tube 5, and the inflatable tube 6 are all separated from the tube wall of the catheter body 1 near the rear end of the catheter body 1, and the separated part of the _CO2 The monitoring tube 2 , the negative pressure suction tube 4 , the water injection tube 5 and the inflation tube 6 are all located outside the catheter body. The effect of the design is that each pipe and the pipe body are designed independently of each other, so that the operation is convenient.

The CO ₂ monitoring tube 2 is provided with a CO ₂ analyzer. Through the CO ₂ analyzer, the monitoring of the CO ₂ concentration is realized, because the exhaled gas of the patient has a higher concentration of carbon dioxide, if there is a leak between the air bag 7 and the airway, the exhaled gas of the patient will enter the air bag along the leaked gap Between 7 and the glottis, by detecting the carbon dioxide concentration of the gas between the patient's glottis and the air bag 7, the dynamic monitoring of the airtightness of the air bag 7 can be realized, thereby guiding the pressure regulation of the tracheal catheter air bag 7.

There are two suction channels 10, and there are two corresponding negative pressure suction tubes 4 in total. It can quickly and effectively remove secretions. (reflects single tube to double tube)

In order to better control the pressure in the airbag 7, a manometer is provided on the inflation tube 6, and the pressure of the airbag can be monitored and adjusted through the manometer.

The opening of the water injection pipe is arranged in front of the opening of the suction channel 10, that is, the water injection pipe is closer to the air bag 7, and this design ensures that the secretions can be fully humidified.

The core of the tracheal catheter of the present invention is: mainly through the CO ₂ monitoring pipe 2, the moisture filter 3 and the water injection pipe 5, to realize the monitoring of the CO ₂ concentration between the patient's glottis and the air bag, and firstly through the water injection pipe 7 to cooperate The negative pressure suction tube 4 can fully absorb the secretions, and then filter the gas with a moisture filter to remove the moisture in the airflow. The ingenious design makes the CO ₂ measurement accurate.

The tracheal catheter of the utility model can be used to monitor the carbon dioxide concentration above the airbag 7. By detecting the carbon dioxide concentration of the gas between the patient's glottis and the airbag 7, the airtightness of the airbag 7 can be dynamically monitored, thereby guiding the tracheal catheter airbag. 7. Pressure regulation; the tracheal tube is provided with a _CO2 monitoring tube 2, and the _CO2 monitoring tube 2 is provided with a moisture filter 3. The effect of this design method is: the _CO2 monitoring tube 2 is a _CO2 analyzer that uses the bypass method to pass CO2 _2. The monitoring tube 2 extracts the gas between the air bag 7 and the patient's glottis, analyzes the _CO concentration of the gas above the air bag 7, and judges the airtightness of the air bag 7 to the airway; the moisture filter 3 filters the extracted gas for moisture, and then sends Enter the CO ₂ analyzer to make the measurement accurate, and then more accurately determine the airtightness of the airbag 7; the water injection pipe 5 is designed, and the water injection pipe 5 is communicated with the cleaning channel 11, which can wet and dilute the secretions. This facilitates the removal of secretions.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and supplements can be made. These improvements and supplements are also It should be regarded as the protection scope of the present invention.

Claims (7)

1. a kind of tracheal catheter that can be used for monitoring carbon dioxide concentration above airbag, it is characterized in that, described tracheal catheter comprises catheter body, _CO monitoring tube, moisture filter, negative pressure suction tube, water injection tube, inflation tube, airbag The outer periphery of the distal end of the catheter body is provided with a balloon; the proximal end of the catheter body is connected with a ventilator; the interlayer of the catheter body is provided with a suction channel, an inflation channel, an inhalation channel, and a cleaning channel; The suction channel is connected with a negative pressure suction tube; the inflatable channel is connected with an inflation tube; the suction channel is connected with a CO ₂ monitoring tube, and the CO ₂ monitoring tube is provided with a moisture filter; The cleaning channel is connected with a water injection pipe; the suction channel, the inflation channel, the suction channel and the cleaning channel all run through the catheter body at a position close to the upper part of the airbag and communicate with the outside world. 2. The endotracheal tube according to claim 1, wherein the _CO monitoring tube, the negative pressure suction tube, the water injection tube and the inflation tube are all close to the tube body The rear end is separated from the pipe wall of the catheter body, and the separated part of the CO ₂ monitoring pipe, the negative pressure suction pipe, the water injection pipe, and the inflation pipe are all located outside the catheter body. 3 . The endotracheal tube according to claim 1 , wherein a CO ₂ analyzer is provided on the CO ₂ monitoring tube. 4 . 4 . The endotracheal catheter capable of monitoring the carbon dioxide concentration above the balloon according to claim 1 , wherein there are two suction channels. 5 . 5 . The endotracheal tube as claimed in claim 1 , wherein a manometer is provided on the inflation tube. 6 . 6 . The endotracheal tube as claimed in claim 1 , wherein the tube body is arc-shaped. 7 . 7 . The endotracheal tube according to claim 1 , wherein the opening of the water injection pipe is arranged in front of the opening of the suction channel. 8 .

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