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

Tracheal catheter capable of monitoring carbon dioxide concentration above air bag Download PDF

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Publication number
CN210963450U
CN210963450U CN201921152692.6U CN201921152692U CN210963450U CN 210963450 U CN210963450 U CN 210963450U CN 201921152692 U CN201921152692 U CN 201921152692U CN 210963450 U CN210963450 U CN 210963450U
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China
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tube
channel
monitoring
suction
inflation
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Expired - Fee Related
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CN201921152692.6U
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Chinese (zh)
Inventor
徐钦
黄桃
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Chongqing Medical University
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Chongqing Medical University
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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

Tracheal catheter capable of monitoring carbon dioxide concentration above air bag
Technical Field
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a can be used for monitoring endotracheal tube of gasbag top carbon dioxide concentration.
Background
An endotracheal tube is a medical device inserted into the trachea/bronchi of a patient to create a temporary artificial breathing pathway for the patient, particularly for patients who cannot breathe spontaneously. The tracheal catheter is an effective means for ensuring the smoothness of the airway, and plays an extremely important role in the rescue process. However, if the pressure of the tracheal tube balloon is not sufficient, the balloon can not tightly seal the airway of the patient, so that the tidal volume is low during mechanical ventilation and secretion above the balloon leaks to the lower respiratory tract along the balloon wall. And if the pressure of the tracheal catheter air bag on the airway of the patient is too high, the mucosa of the airway is easily damaged. Meanwhile, the airtightness of the tracheal catheter air bag is continuously and dynamically changed under the influence of various factors such as the model of the tracheal catheter, the shape and the material of the air bag and the like, and the safety and the effective airtightness of the tracheal catheter air bag on an air passage can be ensured only by dynamically regulating the pressure of the air bag. However, the prior art method for managing the air bag tightness maintains the pressure in the air bag at 25-30cmH recommended by multiple guidelines2O, there are significant limitations. Recent researchers have proposed that monitoring the concentration of carbon dioxide above the endotracheal tube cuff helps to determine how tight the endotracheal tube cuff is about the patient's airway. Because the gas exhaled by the patient has carbon dioxide with higher concentration, if leakage occurs between the air bag and the air passage, the gas exhaled by the patient can enter the space between the air bag and the glottis along the leaked gap, and the dynamic monitoring of the air bag tightness can be realized by detecting the carbon dioxide concentration of the gas between the glottis and the air bag of the patient, so that the pressure regulation of the air bag of the tracheal catheter is guided.
Therefore, how to provide an endotracheal tube capable of monitoring the carbon dioxide concentration above the balloon is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims at providing a tracheal catheter that can be used for monitoring gasbag top carbon dioxide concentration.
In order to achieve the purpose, the utility model adopts the technical proposal that:
an endotracheal tube for monitoring carbon dioxide concentration above an air bag, the endotracheal tube comprises a tube body and 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 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; the suction channel, the inflation channel, the suction channel and the cleaning channel penetrate through the catheter body at positions close to the upper part of the air bag and are communicated with the outside.
As a preferred technical scheme, the CO is2The monitoring tube, the negative pressure suction tube, the water injection tube and the inflation tube are separated from the tube wall of the catheter body at the position close to the rear end of the catheter body, and part of CO after separation2The monitoring tube, the negative pressure suction tube, the water injection tube and the inflation tube are all positioned on the outer side of the catheter body.
As a preferred technical scheme, the CO is2The monitoring pipe is provided with CO2An analyzer.
As a preferred technical scheme, the number of the suction channels is two.
As a preferred technical scheme, a pressure gauge is arranged on the inflation tube.
As a preferred technical scheme, the catheter body is arc-shaped.
As a preferable technical solution, the opening of the water injection pipe is arranged in front of the opening of the suction passage.
The utility model has the advantages that:
1. the utility model discloses a can be used for monitoring tracheal catheter of gasbag top carbon dioxide concentration, usable the utility model discloses tracheal catheter realizes the detection of the carbon dioxide concentration of gas between patient glottis and gasbag, and the airtight degree of dynamic evaluation tracheal catheter gasbag to patient's air flue to guide tracheal catheter gasbag pressure regulation and control, seal with the best tracheal catheter gasbag pressure realization patient air flue in order to do benefit to. .
2. The tracheal catheter is provided with CO2Monitoring pipe, CO2Be equipped with moisture filter on the monitoring pipe, the effect of this design is: CO 22Monitoring that the tube is CO2Analyzer by-pass CO by side-stream method2The monitoring tube extracts gas between the bladder and the patient's glottis and analyzes the gas above the bladder for CO2Concentration, judging the degree of the air bag to seal the air passage; the moisture filter is used for filtering moisture of the extracted gas and then sending CO2The analyzer is used for measuring accurately, and further more accurately judging the air bag to the air passage sealing degree.
3. The water injection pipe is designed and communicated with the cleaning channel, and can moisten and dilute the secretion, thereby being convenient for clearing the secretion.
4. The suction channel is two, and the effect of this design is: the catheter body is provided with the two suction channels, namely, the catheter body adopts a one-tube double-channel structure, so that the blocking probability is reduced, even if one suction channel is blocked, the other suction channel can still be used continuously, secretion can be discharged fully, and the negative pressure suction effect is improved.
Drawings
Fig. 1 is a schematic structural diagram of a tracheal catheter of the present invention for monitoring carbon dioxide concentration above the balloon.
Fig. 2 is a schematic cross-sectional view of the endotracheal tube of the present invention.
Detailed Description
The invention will be further described with reference to the following examples and with reference to the accompanying drawings.
The reference numerals and components referred to in the drawings are as follows:
1. catheter body 2.CO2Monitoring tube
3. Moisture filter 4. negative pressure suction tube
5. Water injection pipe 6. inflation pipe
7. Air bag 8, air suction channel
9. Inflation channel 10, suction channel
11. Cleaning channel
Referring to fig. 1, fig. 1 is a schematic structural diagram of a tracheal catheter for monitoring carbon dioxide concentration above a balloon 7 according to the present invention. An endotracheal tube for monitoring the concentration of carbon dioxide above an air bag 7, the endotracheal tube comprises a tube body 1, CO2A monitoring tube 2, a moisture filter 3, a negative pressure suction tube 4, a water injection tube 5, a breathing machine and an inflation tube 6; the outer peripheral surface of the far end of the catheter body 1 is provided with a balloon 7; the near end of the catheter body 1 is connected with a breathing machine; said CO2The monitoring tube 2, the negative pressure suction tube 4, the water injection tube 5 and the inflation tube 6 are all separated from the tube wall of the catheter body 1 at the position close to the rear end of the catheter body 1, and part of CO after separation2The monitoring tube 2, the negative pressure suction tube 4, the water injection tube 5 and the inflation tube 6 are all positioned outside the catheter body 1.
Referring to fig. 2, fig. 2 is a schematic cross-sectional view of the endotracheal tube of the present invention. The interlayer of the catheter body 1 is provided with a suction channel 10, an inflation channel 9, an air 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 an inflation tube 6; the air suction channel 8 is connected with CO2Monitor pipe 2, and CO2A moisture filter 3 is arranged on the monitoring pipe 2; 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 penetrate through the catheter body 1 at positions close to the upper part of the air bag and are communicated with the outside.
The embodiment needs to be explained as follows:
the far end of the catheter body 1 is connected with a breathing machine and is used for mechanical ventilation.
The catheter body 1 is arc-shaped, and the arc-shaped catheter body 1 is matched with the respiratory tract physiological anatomical structure, so that the damage to the respiratory tract wall of a human body can be reduced.
The periphery of the far end of the catheter body 1 is provided with the air bag 7, and the air bag 7 is located at the glottic airway position in a use state and used for fixing the catheter body 1, sealing, preventing air leakage, ensuring supply of tidal volume and preventing mistaken suction after oropharyngeal secretions and gastric contents flow backwards.
The tracheal catheter is provided with CO2Monitoring pipe 2, CO2The monitoring pipe 2 is provided with a moisture filter 3, and the design mode has the following effects: CO 22 Monitoring pipe 2 as CO2Analyzer by-pass CO by side-stream method2The monitoring tube 2 extracts gas between the bladder 7 and the patient's glottis and analyses the gas above the bladder 7 for CO2Concentration, judging the degree of the air bag 7 to seal the air passage; the moisture filter 3 filters moisture of the extracted gas and then sends CO2The analyzer is used for measuring accurately, and further more accurate judgment is carried out on the airtight degree of the air bag 7 to the air passage.
The interlayer of the catheter body 1 is provided with a suction channel 10, an inflation channel 9, an air suction channel 8 and a cleaning channel 11. This design makes pipe body 1 have multiple functions, and each passageway all sets up in the intermediate layer of pipeline body, does not influence the ventilation of pipe body 1.
The negative pressure suction tube 4 is communicated with the negative pressure suction channel 10 and used for sucking secretion, in order to suck the secretion more thoroughly, the water injection tube 5 is designed in the embodiment, and the water injection tube 5 is communicated with the cleaning channel 11 and can moisten and dilute the secretion, so that the secretion is convenient to clean.
The suction channel 10 is two, and the effect of the design is: the catheter body 1 is provided with the two suction channels 10, namely, a one-tube double-channel structural form is adopted, the blocking probability is reduced, even if one suction channel 10 is blocked, the other suction channel 10 can still be continuously used, secretion can be fully discharged, and the negative pressure suction effect is improved.
The inflation tube 6 is connected with an inflation channel 9, and the inflation channel 9 is directly communicated with the air bag 7, so that the size of the air bag 7 can be controlled, and functions of good fixation, air leakage prevention and the like can be realized conveniently.
Said CO2The monitoring tube 2, the negative pressure suction tube 4, the water injection tube 5 and the inflation tube 6 are all separated from the tube wall of the catheter body 1 at the position close to the rear end of the catheter body 1, and part of CO after separation2The monitoring tube 2, the negative pressure suction tube 4, the water injection tube 5 and the inflation tube 6 are all positioned outside the catheter body. The effect of this design is: all carry out mutual independent design with each pipeline and body for convenient operation.
Said CO2The monitoring pipe 2 is provided with CO2An analyzer. By CO2Analyzer for realizing CO2Concentration monitoring, because the patient has the carbon dioxide of higher concentration in the expired gas, if take place to leak between gasbag 7 and the air flue, the gas of patient's exhalation can follow the space entering gasbag 7 and the glottis that leaks, through the carbon dioxide concentration who detects the gas between patient's glottis and gasbag 7, can realize the dynamic monitoring to gasbag 7 leakproofness to guide endotracheal tube gasbag 7 pressure regulation and control.
The number of the suction channels 10 is two, and the number of the corresponding negative pressure suction tubes 4 is two. Can suck and remove the secretion fast and effectively. (embodying a single tube to a double tube)
In order to better control the pressure in the air bag 7, a pressure measuring device is arranged on the inflation tube 6, and the monitoring and the pressure regulation of the air bag pressure can be realized through the pressure measuring device.
The opening of the water injection pipe is arranged in front of the opening of the suction channel 10, namely the water injection pipe is closer to the air bag 7, and the design ensures that the secretion can be fully humidified.
The core of the tracheal catheter of the utility model is: mainly by CO2 The monitoring tube 2, the moisture filter 3 and the water injection tube 5 realize the CO between the glottis and the air bag of the patient2Concentration monitoring, and earlier through water injection pipe 7 cooperation negative pressure suction pipe 4, can fully absorb the secretion, reuse moisture filter filters gas, has detached the moisture in the air current, design benefit for CO2The measurement is accurate.
The utility model discloses a gas that can be used for monitoring 7 tops carbon dioxide concentration of gasbagThe tracheal catheter can realize dynamic monitoring of the air tightness of the air bag 7 by detecting the concentration of carbon dioxide in the gas between the glottis of the patient and the air bag 7, so as to guide the pressure regulation and control of the air bag 7 of the tracheal catheter; the tracheal catheter is provided with CO2Monitoring pipe 2, CO2The monitoring pipe 2 is provided with a moisture filter 3, and the design mode has the following effects: CO 22 Monitoring pipe 2 as CO2Analyzer by-pass CO by side-stream method2The monitoring tube 2 extracts gas between the bladder 7 and the patient's glottis and analyses the gas above the bladder 7 for CO2Concentration, judging the degree of the air bag 7 to seal the air passage; the moisture filter 3 filters moisture of the extracted gas and then sends CO2The analyzer is used for accurately measuring and further accurately judging the air flue sealing degree of the air bag 7; the water injection pipe 5 is designed, and the water injection pipe 5 is communicated with the cleaning channel 11, so that the secretion can be wetted and diluted, and the secretion is convenient to clean.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.

Claims (7)

1. A tracheal catheter capable of monitoring the concentration of carbon dioxide above an air bag is characterized by comprising a catheter body and 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 cleaning channel is connected with a water injection pipe; the suction channel, the inflation channel, the suction channel and the cleaning channel penetrate through the catheter body at positions close to the upper part of the air bag and are connected with the outsideAnd communicating.
2. The endotracheal tube according to claim 1, wherein the CO is present in an amount sufficient to monitor the concentration of carbon dioxide above the cuff2The monitoring tube, the negative pressure suction tube, the water injection tube and the inflation tube are separated from the tube wall of the catheter body at the position close to the rear end of the catheter body, and part of CO after separation2The monitoring tube, the negative pressure suction tube, the water injection tube and the inflation tube are all positioned on the outer side of the catheter body.
3. The endotracheal tube according to claim 1, wherein the CO is present in an amount sufficient to monitor the concentration of carbon dioxide above the cuff2The monitoring pipe is provided with CO2An analyzer.
4. The endotracheal tube according to claim 1, wherein there are two of the suction channels.
5. The endotracheal tube according to claim 1, wherein a pressure gauge is provided on the inflation tube.
6. The endotracheal tube according to claim 1, wherein the tube body has an arcuate shape.
7. The endotracheal tube useful for monitoring carbon dioxide concentration above the cuff of claim 1, wherein the opening of the water injection tube is disposed forward of the opening of the suction channel.
CN201921152692.6U 2019-07-22 2019-07-22 Tracheal catheter capable of monitoring carbon dioxide concentration above air bag Expired - Fee Related CN210963450U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921152692.6U CN210963450U (en) 2019-07-22 2019-07-22 Tracheal catheter capable of monitoring carbon dioxide concentration above air bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921152692.6U CN210963450U (en) 2019-07-22 2019-07-22 Tracheal catheter capable of monitoring carbon dioxide concentration above air bag

Publications (1)

Publication Number Publication Date
CN210963450U true CN210963450U (en) 2020-07-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113082427A (en) * 2021-04-02 2021-07-09 重庆医科大学 Intelligent management device of endotracheal tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113082427A (en) * 2021-04-02 2021-07-09 重庆医科大学 Intelligent management device of endotracheal tube

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Granted publication date: 20200710

Termination date: 20210722