Tracheal catheter with core body temperature monitoring function and method

Abstract

The tracheal catheter comprises a catheter body, a cuff and an air pressure control assembly matched with the cuff, one side of the cuff partially extends outwards to form an extension part, a first temperature probe is arranged at the tail end of the extension part, a connecting section is arranged between the extension part and the cuff, and the diameter of the connecting section is smaller than that of the extension part; an air bag and an elastic piece are arranged on one surface, facing the tube body, of the extension part; the tail end of the elastic piece is connected with the cuff. The first temperature probe makes contact with the tracheal wall, the core body temperature of a patient is sensed in real time, and accurate body temperature data are provided for medical staff; the air pressure control assembly accurately monitors the pressure of the air bag in the tracheal catheter in real time and enables the air pressure of the cuff to be maintained within the preset range all the time, mucous membrane damage caused by too high pressure of the air bag can be avoided, and it can be ensured that the cuff can effectively fix the catheter body and seal the airway.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a tracheal tube and method for monitoring core body temperature. Background Art

[0002] According to statistics, the incidence of hypothermia in perioperative patients is high. Monitoring of core body temperature can detect abnormal body temperature in time, prevent the occurrence of hypothermia, and buy time for rescue and treatment of patients. Accurate body temperature data can provide doctors with important physiological indicators to guide treatment decisions during anesthesia and surgery.

[0003] At present, the commonly used core body temperature monitors are generally measured through the pulmonary artery, the lower 1 / 3 of the esophagus, the nasopharynx (nostril to the upper 1 / 3 of the nasopharynx), the tympanic membrane and other parts. During general anesthesia, core body temperature monitoring of the esophagus or nasopharynx is practical. However, its operation is relatively complicated, has high requirements for placement, and has a low one-time success rate. This not only increases the difficulty of operation for medical staff, but may also affect the accuracy and timeliness of monitoring. In addition, although the traditional endotracheal tube can play a role in fixation and ventilation after being inserted into the patient's trachea, it does not have accurate core body temperature monitoring functions.

[0004] In view of this, it is indeed necessary to provide a technical solution to the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a tracheal tube and method for monitoring core body temperature in view of the above-mentioned defects of the prior art.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A tracheal tube with the function of monitoring core body temperature is constructed, comprising a tube body, a cuff and an air pressure control assembly matched with the cuff, wherein one side of the cuff partially extends outward to form an extension portion, a first temperature probe is arranged at the end of the extension portion, a connecting section is provided between the extension portion and the cuff, and the diameter of the connecting section is smaller than the diameter of the extension portion; an air bag and an elastic member are arranged on a side of the extension portion facing the tube body, and the end of the elastic member is connected to the cuff; the air pressure control assembly is used to monitor the air pressure in the cuff in real time, and to inflate and deflate the cuff and the air bag so that the air pressure in the cuff is between 25 and 30 cmH2O; after the air bag is inflated, the extension portion is lifted up so that the first temperature probe contacts the tracheal wall, the connecting section is in an open state, and the elastic member is deformed.

[0008] As an improvement of the endotracheal tube, it also includes a second temperature probe, which is arranged in the tube cavity of the tube body and is connected and cooperated with the air pressure control component.

[0009] As an improvement of the endotracheal tube, the air pressure control component includes a first pressure sensor and a second pressure sensor respectively built into the cuff and the airbag, and is provided with a controller for receiving sensing data of the first pressure sensor and the second pressure sensor, and the controller is connected to an inflation and deflation component that can inflate and deflate the cuff and the airbag respectively.

[0010] As an improvement of the endotracheal tube, the inflation and deflation component includes a first pipe and a second pipe, the first pipe is connected to the cuff and the other end passes through the tube body, and the second pipe is connected to the airbag and the other end passes through the tube body.

[0011] As an improvement of the endotracheal tube, the extension portion includes a base and a plate body connected to the end of the base body, the outer side of the plate body is provided with a groove, and the first temperature probe is arranged in the groove.

[0012] As an improvement of the endotracheal tube, the base body has a cavity in the interior thereof which is communicated with the cuff and is made of a soft material.

[0013] As an improvement of the endotracheal tube, a diaphragm is sealed on the top of the groove, and the first temperature probe lifts up the diaphragm to make the diaphragm convex in an arc shape.

[0014] As an improvement of the endotracheal tube, the second temperature probe is located in a receiving groove opened in the tube cavity of the tube body, and the receiving groove is also sealed with a diaphragm.

[0015] A method for monitoring core body temperature using an endotracheal tube as described above, the method comprising the following steps:

[0016] S1. First, the interface of the first temperature probe is connected to the monitoring device, indicating that the air pressure control component is connected to the inflation device;

[0017] S2, slowly inserting the tube into the patient's oral cavity until the front end of the tube reaches a designated position;

[0018] S3, inflating the cuff and the airbag through the air pressure control component and the inflation device, so that the cuff contacts the patient's tracheal wall after being expanded, and the airbag pushes up the extension part after being expanded, so that the first temperature probe contacts the tracheal wall, the connecting section is in an open state, and the elastic member is deformed;

[0019] S4. Use the first temperature probe on the extension portion to sense the core body temperature of the patient through the tracheal wall to monitor the patient's temperature condition in real time.

[0020] As an improvement to the method for monitoring core body temperature, in step S4, a second temperature probe is arranged in the lumen of the tube body, sensing data of the second temperature probe is received, the temperature difference between the second temperature probe and the first temperature probe is calculated, and the data of the first temperature probe is calibrated according to the temperature difference to determine whether the first temperature probe is out of contact with the tracheal wall.

[0021] The beneficial effects of the present invention are as follows: since there are many large arteries and veins around the tracheal wall, it can accurately and quickly respond to changes in core body temperature. Through the contact between the first temperature probe and the tracheal wall, the core body temperature of the patient is sensed in real time, providing accurate temperature data for medical staff. After the cuff is inflated, it fits tightly with the patient's tracheal wall to prevent the catheter from shifting or falling off, thereby improving the safety of use. The air pressure control component accurately monitors the air bag pressure in the tracheal tube in real time, and the cuff is inflated and deflated according to the preset air pressure value, so that the air pressure of the cuff is always maintained within the preset range, which can avoid mucosal damage caused by excessive air bag pressure. At the same time, it can also ensure that the cuff can effectively fix the tube body and seal the airway, reducing the workload of nurses.

[0022] In addition, when the air pressure control component inflates the airbag and the airbag expands and lifts up the extension part, the connecting section changes from a disconnected state to a connected state, and the gas in the cuff flows into the extension part to further support the extension part; through the arrangement of the airbag and the connecting section, the extension part can be supported secondary, so that the first temperature probe on the extension part can fit closely with the tracheal wall, thereby ensuring the stable position of the first temperature probe and the accuracy of the core body temperature measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0024] Figure 1 It is one of the structural schematic diagrams of a tracheal tube with the function of monitoring core body temperature provided by the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the tube body of the present invention inserted into the trachea of ​​a patient;

[0026] Figure 3 is a schematic diagram of the structure of the cuff of the present invention after being inflated in the trachea of ​​a patient;

[0027] Figure 4 It is one of the structural schematic diagrams of the extension part of the present invention;

[0028] Figure 5 This is the second structural schematic diagram of the extension portion of the present invention;

[0029] Figure 6 is a flow chart of a method for monitoring core body temperature provided by the present invention;

[0030] Figure 7 This is the second structural schematic diagram of a tracheal tube with the function of monitoring core body temperature provided by the present invention.

[0031] In the figure: 1. tube body; 2. cuff; 21. extension part; 22. connecting section; 23. base; 24. plate; 25. groove; 26. airbag; 27. elastic member; 28. diaphragm; 3. first temperature probe; 4. air pressure control component; 41. first pressure sensor; 42. second pressure sensor; 43. first pipeline; 44. second pipeline; 5. second temperature probe; 6. tracheal wall; 7. third pipeline. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0033] A preferred embodiment of the present invention is a tracheal tube with a function of monitoring core body temperature, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the tracheal tube includes a tube body 1, a cuff 2, and an air pressure control component 4 matched with the cuff 2. One side of the cuff 2 partially extends outward to form an extension portion 21, and a first temperature probe 3 is arranged at the end of the extension portion 21. A connecting section 22 is provided between the extension portion 21 and the cuff 2, and the diameter of the connecting section 22 is smaller than the diameter of the extension portion 21; an air bag 26 and an elastic member 27 are arranged on the side of the extension portion 21 facing the tube body 1, and the end of the elastic member 27 is connected to the cuff 2. The air pressure control component 4 is used to monitor the air pressure in the cuff 2 in real time, and to inflate and deflate the cuff 2 and the air bag 26 so that the air pressure in the cuff 2 is between 25 and 30 cmH2O; after the air bag 26 is inflated, the extension portion 21 is lifted up, so that the first temperature probe 3 contacts the tracheal wall 6, the connecting section 22 is opened, and the elastic member 27 is deformed.

[0034] Specifically, the cuff 2 contacts the patient's tracheal wall 6 after being inflated, and can play a role in fixing the tube body 1 to ensure the stability of the position of the tube body 1. The side of the extension part 21 facing the tube body 1 is provided with an air bag 26 and an elastic member 27. After the air bag 26 is inflated, the extension part 21 is lifted up, so that the first temperature probe 3 is in close contact with the tracheal wall 6.

[0035] Since there are many large arteries and veins around the tracheal wall 6, it can accurately and quickly respond to changes in core body temperature. Through the contact between the first temperature probe 3 and the tracheal wall 6, the patient's core body temperature is sensed in real time, providing accurate body temperature data for medical staff. After the cuff 2 is inflated, it fits tightly with the patient's tracheal wall 6 to prevent the catheter from shifting or falling off, thereby improving the safety of use. The air pressure control component 4 accurately monitors the pressure of the air bag 26 in the tracheal tube in real time, and the cuff 2 is inflated and deflated according to the preset air pressure value, so that the air pressure of the cuff 2 is always maintained within the preset range, which can avoid mucosal damage caused by excessive pressure of the air bag 26. At the same time, it can also ensure that the cuff 2 can effectively fix the tube body 1 and seal the airway, reducing the workload of nurses.

[0036] When the air pressure control component 4 inflates the airbag 26 and the airbag 26 expands and lifts up the extension part 21, the connecting section 22 changes from a disconnected state to a connected state, and the gas in the cuff 2 flows into the extension part 21 to further support the extension part 21; through the arrangement of the airbag 26 and the connecting section 22, the extension part 21 can be supported secondary, so that the first temperature probe 3 on the extension part 21 can be closely matched with the tracheal wall 6, thereby ensuring the stable position of the first temperature probe 3 and the accuracy of the core body temperature measurement.

[0037] When it is not necessary to monitor the core body temperature, the airbag 26 is evacuated through the air pressure control component 4, and the extension portion 21 is no longer lifted. Under the action of the rebound force of the elastic member 27, the extension portion 21 gradually folds toward the cuff 2. Since the diameter of the connecting section 22 is smaller than the diameter of the extension portion 21, after folding, the connecting section 22 changes from a connected state to a disconnected state, thereby preventing the extension portion 21 from being lifted up due to the inflation of the cuff 2, and does not affect the use of the tracheal tube.

[0038] It should be noted that cmH2O refers to centimeters of water column, and 1 centimeter of water column is equal to 0.098 kPa. The elastic member 27 is an elastic rope.

[0039] In other embodiments, the air pressure in the cuff 2 may be set to 26 cmH2O, 27 cmH2O, 28 cmH2O or 29 cmH2O.

[0040] In some embodiments of the present application, a second temperature probe 5 is further included. The second temperature probe 5 is disposed in the lumen of the tube body 1 and is connected to and cooperated with the air pressure control component 4 .

[0041] Specifically, the second temperature probe 5 is arranged in the lumen of the tube body 1, and can sense the temperature in the lumen, and transmit the temperature data to the monitoring device connected thereto. By receiving the sensing data of the second temperature probe 5, the temperature difference between it and the first temperature probe 3 can be calculated, and the data of the first temperature probe 3 can be calibrated according to the temperature difference. This calibration is very important for ensuring the accuracy of the measurement of the first temperature probe 3, especially when it is necessary to determine whether the first temperature probe 3 is out of contact with the tracheal wall 6. If the first temperature probe 3 is out of contact with the tracheal wall 6, the temperature value detected will deviate, and therefore, the difference between the second temperature probe 5 will also change accordingly, and then it is determined whether the first temperature probe 3 is in contact with the tracheal wall 6. If it is determined that the contact is out of contact, the airbag 26 is inflated to squeeze the first temperature probe 3 to contact with the tracheal wall 6.

[0042] In addition to relying on the first temperature probe 3 to monitor the temperature of the tracheal wall 6, the second temperature probe 5 can also provide temperature data in the lumen. These data are very useful for comprehensively evaluating the patient's body temperature condition, and can also serve as a supplement and verification of the data of the first temperature probe 3. By using two temperature probes together, the accuracy of the data can be verified against each other, thereby improving the reliability of the entire monitoring system. If the readings of the two probes differ greatly, this may mean that there is some abnormality that requires further inspection or treatment.

[0043] In some embodiments of the present application, the air pressure control component 4 includes a first pressure sensor 41 and a second pressure sensor 42 respectively built into the cuff 2 and the airbag 26, and the controller is used to receive the sensing data of the first pressure sensor 41 and the second pressure sensor 42, and the controller is connected to an inflating and deflation component that can inflate and deflate the cuff 2 and the airbag 26. Specifically, the first pressure sensor 41 and the second pressure sensor 42 monitor the air pressure in the cuff 2 and the airbag 26 in real time, and transmit these data to the controller; the controller controls the inflating and deflation component to inflate and deflate the cuff 2 and the airbag 26 according to the received sensing data, so as to ensure that the air pressure in the cuff 2 is maintained within the range of 25-30cmH2O.

[0044] By precisely controlling the air pressure in the cuff 2, the tracheal tube can be stably fixed on the patient's tracheal wall 6, effectively preventing the tube from falling off or shifting, and improving the safety of use. When the air bag 26 is inflated, it will lift the extension part 21 to ensure that the first temperature probe 3 is in close contact with the tracheal wall 6. In this way, the first temperature probe 3 can more accurately monitor the patient's core body temperature and provide reliable body temperature data for medical staff. The real-time monitoring and automatic adjustment functions of the air pressure control component 4 ensure the safety and effectiveness of the tracheal tube during use. By reducing complications caused by improper air pressure, the air pressure control component 4 helps to improve the quality of medical care.

[0045] In some embodiments of the present application, the inflation and deflation member includes a first pipe 43, a second pipe 44 and an inflation device, the first pipe 43 is connected to the cuff 2, and the other end passes through the tube body 1, and the second pipe 44 is connected to the airbag 26, and the other end passes through the tube body 1. Specifically, the inflation device can be set as an external inflation device, and the inflation device is connected to the cuff 2 and the airbag 26 through the first pipe 43 and the second pipe 44, respectively, to inflate and deflate the cuff 2 and the airbag 26. Figure 1 In the figure, the two pipes passing through the outer end of the tube body 1 are the first pipe 43 and the second pipe 44, which are respectively used to inflate and deflate the cuff 2 and the airbag 26, and the outer ends of the first pipe 43 and the second pipe 44 are provided with display screens that can display the air pressure value. The real-time air pressure value inside the cuff 2 and the airbag 26 can be obtained intuitively and conveniently through the display screen, which is more conducive to the user to accurately maintain the air pressure inside the cuff 2 and the airbag 26. The first temperature probe 3 and the second temperature probe 5 transmit the sensed temperature changes to the outside through electrical signals for feedback.

[0046] In some other embodiments, according to the requirements, Figure 1 The two pipelines passing through the outer end of the middle tube body 1 are configured as follows: one of the pipelines is used to connect and cooperate with the first temperature probe 3 and the second temperature probe 5, and is used to connect to an external device to transmit the temperature change data sensed by the first temperature probe 3 and the second temperature probe 5 to the external device for real-time monitoring; the other pipeline is connected in parallel with the first pipeline 43 and the second pipeline 44, and the cuff 2 and the airbag 26 can be inflated and deflated through the first pipeline 43 and the second pipeline 44, and when the cuff 2 is inflated and deflated, the connection with the second pipeline 44 is closed, and when the airbag 26 is inflated and deflated, the connection with the first pipeline 43 is closed.

[0047] In some other embodiments, such as Figure 7 As shown, there are three pipelines passing through the outer end of the tube body 1, two of which are the first pipeline 43 and the second pipeline 44, which are respectively used to inflate and deflate the cuff 2 and the airbag 26, and the outer ends of the first pipeline 43 and the second pipeline 44 are provided with display screens that can display the air pressure value. The real-time air pressure value inside the cuff 2 and the airbag 26 can be obtained intuitively and conveniently through the display screen, which is more conducive to the user to accurately maintain the air pressure inside the cuff 2 and the airbag 26; the other pipeline is the third pipeline 7, which is connected to the first temperature probe 3 and the second temperature probe 5, and is used to connect to an external device to transmit the temperature change data sensed by the first temperature probe 3 and the second temperature probe 5 to the external device for real-time monitoring.

[0048] In some embodiments of the present application, the extension portion 21 includes a base 23 and a plate 24 connected to the end of the base 23, the outer side of the plate 24 is provided with a groove 25, and the first temperature probe 3 is disposed in the groove 25. Specifically, the elastic member 27 and the airbag 26 are both disposed on the plate 24.

[0049] In some embodiments of the present application, the substrate 23 has a cavity inside that is connected to the cuff 2 and is made of a soft material. Specifically, the substrate 23 is a part of the extension 21, and is designed with a cavity inside that is connected to the cuff 2. When the cuff 2 is inflated, the air pressure will be transmitted to the cavity inside the substrate 23, helping the extension 21 to be lifted. In this way, the first temperature probe 3 can be in close contact with the tracheal wall 6 for accurate body temperature monitoring. The substrate 23 is made of a soft material. The choice of this material ensures the flexibility of the substrate 23 during use and its adaptability to the tracheal wall 6, which helps to reduce the patient's discomfort.

[0050] In some embodiments of the present application, Figure 5 As shown, the top of the groove 25 is sealed with a diaphragm 28, and the first temperature probe 3 lifts up the diaphragm 28, making the diaphragm 28 convex in an arc shape. The groove 25 is located on the outer side of the plate body 24 of the extension part 21, and the first temperature probe 3 is arranged in the groove 25. When the airbag 26 is inflated, it will lift up the extension part 21, so that the first temperature probe 3 contacts the tracheal wall 6 through the groove 25, thereby realizing the monitoring of the patient's core body temperature. The top of the groove 25 is sealed with a diaphragm 28, and the first temperature probe 3 lifts up the diaphragm 28, making it convex in an arc shape. Such a design not only ensures the close contact between the temperature probe and the tracheal wall 6, reduces the friction between the first temperature probe 3 and the tracheal wall 6, but also reduces the interference of the external environment on the temperature measurement through the sealing of the diaphragm 28.

[0051] At the same time, the provision of the diaphragm 28 also prevents the first temperature probe 3 from directly contacting the tracheal wall 6, thereby avoiding infection to the human body, and also protects the first temperature probe 3 from being corroded by body fluids. The material of the diaphragm 28 can be polyvinyl chloride.

[0052] In some embodiments of the present application, the second temperature probe 5 is located in a receiving groove provided in the lumen of the tube body 1, and the receiving groove is also sealed with a diaphragm 28. The receiving groove is provided in the lumen of the tube body 1 for installing and fixing the second temperature probe 5. The receiving groove provides a stable and safe installation environment for the second temperature probe 5, ensuring that it can accurately and continuously monitor the temperature in the lumen. At the same time, the sealed diaphragm 28 also plays a role in protecting the probe, preventing external factors from affecting the temperature reading, and further improving the accuracy of core body temperature monitoring.

[0053] A method of monitoring core body temperature, such as Figure 6 As shown, using the above endotracheal tube, the method includes the following steps:

[0054] S1. First, the interface of the first temperature probe 3 is connected to the monitoring device, indicating that the air pressure control component 4 is connected to the inflation device;

[0055] S2, slowly inserting the tube body 1 into the patient's oral cavity until the front end of the tube body 1 reaches the designated position;

[0056] S3, inflate the cuff 2 and the airbag 26 through the air pressure control component 4 and the inflation device, and the cuff 2 is expanded to contact the patient's tracheal wall 6. After the airbag 26 is expanded, the extension part 21 is lifted up, so that the first temperature probe 3 is in contact with the tracheal wall 6, the connecting section 22 is in an open state, and the elastic member 27 is deformed;

[0057] S4. Use the first temperature probe 3 on the extension portion 21 to sense the core body temperature of the patient through the tracheal wall 6 to monitor the temperature condition of the patient in real time.

[0058] Furthermore, in step S4, a second temperature probe 5 is arranged in the lumen of the tube body 1, the sensing data of the second temperature probe 5 is received, the temperature difference between the second temperature probe 5 and the first temperature probe 3 is calculated, and the data of the first temperature probe 3 is calibrated according to the temperature difference to determine whether the first temperature probe 3 is out of contact with the tracheal wall 6.

[0059] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. An endotracheal tube with a function of monitoring core body temperature, characterized in that , including a tube body, a cuff and an air pressure control component cooperating with the cuff, one side of the cuff partially extends outward to form an extension portion, a first temperature probe is arranged at the end of the extension portion, a connecting section is provided between the extension portion and the cuff, and the diameter of the connecting section is smaller than the diameter of the extension portion; an air bag and an elastic member are arranged on the side of the extension portion facing the tube body, the end of the elastic member is connected to the cuff, the air pressure control component is used to monitor the air pressure in the cuff in real time, and to inflate and deflate the cuff and the air bag; after the air bag is inflated, the extension portion is lifted up so that the first temperature probe contacts the tracheal wall, the connecting section is in an open state, and the elastic member is deformed.

2. The endotracheal tube with core body temperature monitoring function according to claim 1, characterized in that: It also includes a second temperature probe disposed in the lumen of the tube body, and the second temperature probe is connected and cooperated with the air pressure control component.

3. The endotracheal tube with core body temperature monitoring function according to claim 2, characterized in that: The air pressure control component includes a first pressure sensor and a second pressure sensor respectively built into the cuff and the airbag, and a controller is used to receive sensing data from the first pressure sensor and the second pressure sensor. The controller is connected to an inflation and deflation component that can inflate and deflate the cuff and the airbag respectively.

4. The endotracheal tube with core body temperature monitoring function according to claim 3, characterized in that: The inflation and deflation member includes an inflation device, a first pipe and a second pipe that can be connected to the inflation device, the first pipe is connected to the cuff and the other end passes through the tube body, and the second pipe is connected to the airbag and the other end passes through the tube body.

5. The endotracheal tube with core body temperature monitoring function according to claim 2, characterized in that: The extension portion includes a base and a plate connected to the end of the base, a groove is formed on the outer side of the plate, and the first temperature probe is arranged in the groove.

6. The endotracheal tube with core body temperature monitoring function according to claim 5, characterized in that: The base body has a cavity inside which is communicated with the cuff and is made of soft material.

7. The endotracheal tube with core body temperature monitoring function according to claim 5, characterized in that: A diaphragm is sealed on the top of the groove, and the first temperature probe lifts up the diaphragm to make the diaphragm present an arc-shaped convex shape.

8. The endotracheal tube with core body temperature monitoring function according to claim 7, characterized in that: The second temperature probe is located in a receiving groove formed in the tube cavity of the tube body, and the receiving groove is also sealed with a diaphragm.

9. A method for monitoring core body temperature, characterized in that: Using the endotracheal tube according to any one of claims 1 to 8, the method comprises the following steps: S1. First, the interface of the first temperature probe is connected to the monitoring device, indicating that the air pressure control component is connected to the inflation device; S2, slowly inserting the tube into the patient's oral cavity until the front end of the tube reaches a designated position; S3, inflating the cuff and the airbag through the air pressure control component and the inflation device, so that the cuff contacts the patient's tracheal wall after being expanded, and the airbag pushes up the extension part after being expanded, so that the first temperature probe contacts the tracheal wall, the connecting section is in an open state, and the elastic member is deformed; S4. Use the first temperature probe on the extension portion to sense the core body temperature of the patient through the tracheal wall to monitor the patient's temperature condition in real time.

10. The method for monitoring core body temperature according to claim 9, characterized in that: In step S4, a second temperature probe is set in the lumen of the tube body, sensing data of the second temperature probe is received, the temperature difference between the second temperature probe and the first temperature probe is calculated, and the data of the first temperature probe is calibrated according to the temperature difference to determine whether the first temperature probe is out of contact with the tracheal wall.

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