Heatable and temperature-measurable trachea cannula

Abstract

The trachea cannula capable of being heated and measuring the temperature is used in cooperation with a monitor and comprises a multi-cavity trachea body, a heating body is arranged in the pipe wall of one side of the multi-cavity trachea body, a temperature measuring probe is arranged in the pipe wall of one side of the multi-cavity trachea body, an end-expiratory carbon dioxide monitoring pipe is arranged in the pipe wall of the multi-cavity trachea body, and the temperature measuring probe is arranged in the pipe wall of the multi-cavity trachea body. The heating body, the temperature measuring probe and the end-tidal carbon dioxide monitoring tube are all connected to the monitor. When the trachea cannula heating device is used, the heating body is connected with the monitor which has the heating function, the temperature monitoring function and the end-tidal carbon dioxide monitoring function, the temperature needed by the human body is set through the monitor and conveyed to the heating wire to heat the trachea cannula, the temperature of gas is increased after the gas passes through the heated trachea cannula, and the temperature suitable for the human body is reached. Meanwhile, the temperature probe on the trachea cannula monitors the temperature of the airway at the same time so as to achieve the function of monitoring the body temperature in real time, and the other end-expiratory carbon dioxide monitoring tube monitors the carbon dioxide content of gas exhaled from the airway of the patient at the same time.

Description

Technical Field

[0001] The invention relates to the field of medical devices, and in particular to a heatable and temperature-measuring endotracheal cannula. Background Art

[0002] Endotracheal intubation is a technique in which a special endotracheal tube is inserted into the trachea through the oral or nasal cavity to assist the patient in breathing, relieve airway obstruction, and absorb airway secretions.

[0003] Endotracheal intubation is an indispensable and important part of clinical anesthesia and is a commonly used device for rescuing critically ill patients. After endotracheal intubation, the patient's airway remains unobstructed, effectively preventing foreign matter from entering the airway and facilitating the timely suction of tracheal secretions or blood. Daily care should be taken to avoid tracheal prolapse and the intubation site should be professionally disinfected regularly to avoid secondary infection.

[0004] Existing endotracheal tubes are generally not equipped with heating devices. The difference between the temperature of the incoming gas and the patient's body temperature can easily cause secondary stimulation to the trachea or the affected area. The few endotracheal tubes with heating devices are mostly externally heated gas or heated by electric heating wires, which can easily cause uneven heating or heat radiation.

[0005] The existing endotracheal intubation used by patients undergoing general anesthesia in a cold operating room is relatively simple. The gas output by the anesthesia machine is cold gas, which easily causes discomfort when entering the patient's airway, aggravating the patient's condition, and is even more unable to monitor the body temperature and the carbon dioxide content in the respiratory airway. The existing technology is to attach a temperature probe to the patient's skin to monitor the body temperature, and a separate end-tidal carbon dioxide monitoring tube is required for monitoring. At the same time, after the body temperature drops, a heating blanket is needed to increase the patient's body temperature to maintain the patient's body temperature. Summary of the invention

[0006] In order to solve the above technical problems, the present invention specially designs a tracheal intubation with airway heating function, which can monitor human body temperature and the content of carbon dioxide exhaled by the patient, and discloses a heatable and temperature-measurable tracheal intubation.

[0007] The present invention adopts the following technical solution: A heatable and temperature-measurable endotracheal tube is used in conjunction with a monitor, comprising a multi-lumen endotracheal tube body, a heating body is provided in the tube wall on one side of the multi-lumen endotracheal tube body, a temperature measuring probe is provided in the tube wall on one side, and an end-tidal carbon dioxide monitoring tube is provided in the tube wall of the multi-lumen endotracheal tube body. The heating body, the temperature measuring probe and the end-tidal carbon dioxide monitoring tube are all connected to the monitor.

[0008] The tube wall of the multi-lumen tracheal tube body is provided with a heating interface hole, an end-tidal carbon dioxide monitoring interface hole, a temperature measurement interface hole, and an inflation interface hole.

[0009] Furthermore, the heating body is a graphene heating sheet, and the graphene heating sheet is located in the heating body hole of the tube wall of the multi-lumen tracheal tube body.

[0010] Furthermore, the heating body is an electric heating wire, and the electric heating wire is located in the heating body hole of the tube wall of the multi-lumen tracheal tube body.

[0011] Furthermore, a Murphy hole is provided at the end of the multi-lumen tracheal tube body, a carbon dioxide monitoring port is provided on the opposite side of the Murphy hole, a carbon dioxide monitoring tube is provided in the carbon dioxide monitoring interface hole of the multi-lumen tracheal tube body, and the carbon dioxide monitoring tube is connected to a monitor through the carbon dioxide monitoring port; An inflatable bag is arranged inside the Murphy hole, a temperature measuring hole is arranged inside the inflatable bag, the temperature measuring probe is located at the temperature measuring hole, and the temperature measuring probe is connected to the monitor through a temperature measuring interface.

[0012] Furthermore, the monitor has the functions of controlling heating, monitoring temperature, and monitoring end-tidal carbon dioxide concentration. The monitor sets the temperature required by the human body to heat the endotracheal tube, and the temperature probe on the endotracheal tube monitors the airway temperature at the same time to achieve real-time monitoring of body temperature. The end-tidal carbon dioxide monitoring tube monitors the carbon dioxide content of the gas exhaled from the patient's airway at the same time.

[0013] The multi-lumen tracheal tube body is a bronchial tube, a double-lumen bronchial tube or an esophageal airway combined tracheal tube.

[0014] Furthermore, a video camera port is provided at the end of the multi-lumen tracheal tube body, and a camera hole is opened on the tube wall of the multi-lumen tracheal tube body.

[0015] The video camera port is equipped with a camera with millions of pixels, and the camera is connected to the monitor via a camera interface.

[0016] Compared with the prior art, the present invention has the following beneficial effects: A graphene heating plate or electric heating wire is added to the wall of one side of the endotracheal tube, a temperature probe is added to the wall of the other side, and a carbon dioxide monitoring tube is added to the wall of the other side. When in use, the heating wire is connected to a monitor with heating function, temperature monitoring function, and carbon dioxide monitoring function. The temperature required by the human body is set through the instrument and transmitted to the heating body to heat the endotracheal tube. In this way, the temperature of the cold gas delivered by the anesthesia machine rises after the heated endotracheal tube and reaches the temperature adapted to the human body. At the same time, the temperature probe on the endotracheal tube monitors the airway temperature to achieve the function of real-time monitoring of body temperature. Another carbon dioxide monitoring tube monitors the carbon dioxide content of the gas exhaled from the patient's airway. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, 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.

[0018] Figure 1 This is a schematic diagram of the graphene heated and temperature-measurable endotracheal tube structure; Figure 2 for Figure 1 Schematic diagram of a cross section of a medium multi-lumen tracheal tube; Figure 3 This is the functional block diagram of the monitor; Figure 4 This is a structural schematic diagram of Example 3; Figure 5 for Figure 1 Schematic diagram of a cross section of a medium multi-lumen tracheal tube.

[0019] Reference numerals: 1. Multi-lumen tracheal tube body, 2. Heating interface, 2', heating interface hole, 3. End-tidal carbon dioxide monitoring interface, 3', end-tidal carbon dioxide monitoring interface hole, 4. Heating body, 5. Temperature measurement interface, 5', temperature measurement interface hole, 6. Inflation interface, 6', inflation interface hole, 7. Temperature measurement hole, 8. Inflatable bag, 9. Carbon dioxide monitoring port, 10. Murphy hole, 11. Video camera port, 11', camera hole, 12. Camera interface. DETAILED DESCRIPTION

[0020] The following will be combined with the attached embodiment of the present invention Figure 1-3 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0023] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1:

[0025] A heatable and temperature-measuring endotracheal tube, which is used in conjunction with a monitor, comprises a multi-lumen endotracheal tube body 1, a heating body 4 is provided in the tube wall of one side of the multi-lumen endotracheal tube body, a temperature measuring probe is provided in the tube wall of one side, an end-tidal carbon dioxide monitoring tube is provided in the tube wall of the multi-lumen endotracheal tube body, and the heating body 4, the temperature measuring probe, and the end-tidal carbon dioxide monitoring tube are all connected to the monitor. The monitor has the functions of heating, monitoring temperature, and monitoring end-tidal carbon dioxide concentration.

[0026] Temperature detection, monitoring of end-tidal carbon dioxide concentration monitoring data are transmitted to the monitor, which is equipped with an information transmission module and a temperature display module to display the real-time temperature. The range of heating temperature is set by the monitor. If the limit value is exceeded, the alarm module will alarm to remind medical staff to check and deal with it in time.

[0027] The tube wall of the multi-lumen tracheal tube body is provided with a heating interface hole 2', an end-tidal carbon dioxide monitoring interface hole 3', a temperature measurement interface hole 5', and an inflation interface hole 6'. The inflation interface hole is connected to the inflation interface 6.

[0028] The heating body is an electric heating wire. The electric heating wire is made of a metal material with good electrical and thermal conductivity, such as nickel-chromium alloy and iron-chromium alloy. The electric heating wire is located in the heating body hole of the tube wall of the multi-lumen tracheal tube body. It can be linear or spiral to adapt to different heating requirements and space limitations.

[0029] A Murphy hole 10 is provided at the end of the multi-lumen tracheal tube body, a carbon dioxide monitoring port 9 is provided on the opposite side of the Murphy hole, a carbon dioxide monitoring tube 3 is provided in the carbon dioxide monitoring interface hole of the multi-lumen tracheal tube body, and the carbon dioxide monitoring tube is connected to the monitor through the carbon dioxide monitoring port; an inflatable bag 8 is provided in the Murphy hole, a temperature measuring hole is provided in the inflatable bag, the temperature measuring probe is located at the temperature measuring hole 7, and the temperature measuring probe is connected to the monitor through the temperature measuring interface.

[0030] The monitor has the functions of controlling heating, monitoring temperature, and monitoring end-tidal carbon dioxide concentration. The monitor sets the temperature required by the human body to heat the endotracheal tube, and the temperature probe on the endotracheal tube monitors the airway temperature at the same time to achieve real-time monitoring of body temperature. The end-tidal carbon dioxide monitoring tube monitors the carbon dioxide content of the gas exhaled from the patient's airway at the same time.

[0031] The multi-lumen tracheal tube body is equipped with an end-tidal carbon dioxide monitoring ventilation catheter, and the monitoring port is located at the end of the tracheal tube. There is no probe for end-tidal carbon dioxide detection, only a pipeline, and the end of the pipeline can normally inhale gas through the monitoring port.

[0032] An electric heating wire is added to the wall of one side of the endotracheal tube, a temperature probe is added to the wall of the other side, and a carbon dioxide end-tidal monitoring tube is added to the wall of the other side. When in use, the heating wire is connected to a monitor with heating function, temperature monitoring function, and carbon dioxide end-tidal monitoring function. The temperature required by the human body is set through the instrument and transmitted to the heating wire to heat the endotracheal tube. In this way, the temperature of the cold gas delivered by the anesthesia machine rises after the heated endotracheal tube and reaches the temperature adapted to the human body. At the same time, the temperature probe on the endotracheal tube monitors the airway temperature to achieve the function of real-time monitoring of body temperature. Another carbon dioxide end-tidal monitoring tube simultaneously monitors the carbon dioxide content of the gas exhaled from the patient's airway.

[0033] Embodiment 2:

[0034] A heatable and temperature-measuring endotracheal tube, which is used in conjunction with a monitor, comprises a multi-lumen endotracheal tube body, a graphene heating sheet is arranged in the tube wall of one side of the multi-lumen endotracheal tube body, a temperature measuring probe is arranged in the tube wall of one side, and an end-tidal carbon dioxide monitoring tube is arranged in the tube wall of the multi-lumen endotracheal tube body, and the heating body, the temperature measuring probe, and the end-tidal carbon dioxide monitoring tube are all connected to the monitor. The monitor has the functions of heating, monitoring temperature, and monitoring end-tidal carbon dioxide concentration.

[0035] The heating body is a graphene heating sheet, which is located in the heating body hole of the tube wall of the multi-lumen tracheal tube body. This arrangement allows the heating sheet to directly contact the inner wall of the tracheal tube, thereby more effectively transferring heat to the gas in the airway. The graphene heating sheet can be made very thin, usually at the micron level.

[0036] The tube wall of the multi-lumen tracheal tube body is provided with a heating interface hole, an end-tidal carbon dioxide monitoring interface hole, a temperature measurement interface hole, and an inflation interface hole.

[0037] A Murphy hole is arranged at the end of the multi-lumen tracheal tube body, and a carbon dioxide monitoring port is arranged on the opposite side of the Murphy hole; an inflatable bag is arranged inside the Murphy hole, and a temperature measurement interface is arranged inside the inflatable bag.

[0038] A temperature sensor is installed near the graphene heating plate to monitor the temperature of the heating plate in real time. When the temperature reaches the preset maximum value, the sensor will send a signal to automatically adjust the heating power or cut off the power supply.

[0039] Graphene has extremely high thermal conductivity and can quickly conduct heat. It is used in endotracheal tubes to provide precise temperature control and monitoring. This application can take advantage of graphene's thermal conductivity and far-infrared radiation capabilities to provide gentle and uniform heating for endotracheal tubes, and may also have temperature monitoring functions to ensure safety and therapeutic effects. When the electrodes at both ends of the graphene heating film are energized, the carbon molecules in the electric heating film generate phonons, ions, and electrons in the resistor, and heat energy is generated by the friction and collision between the generated carbon molecular groups. This friction motion is an irregular motion, also called Brownian motion, which generates heat through friction between carbon atoms.

[0040] The generated heat energy is radiated evenly in a plane through far infrared rays with a wavelength of 5-14 microns, and the total conversion rate of effective electric heat energy is over 99%. The far infrared wavelength can be controlled at 4-12μm, which is beneficial to human health. This far infrared radiation can promote blood circulation and metabolism, and at the same time it is helpful to maintain the humidity of the air flow because it can reduce heat loss and thus reduce water evaporation.

[0041] When the graphene heater works, heat is generated by passing an electric current through the graphene material. Due to the high thermal conductivity of graphene, it can dissipate heat evenly and efficiently.

[0042] The multi-lumen tracheal tube body is a bronchial tube, a double-lumen bronchial tube or an esophageal airway combined tracheal tube. In practical applications, a flexible graphene composite material can be used to make a heating plate, so that it can better adapt to the bending and deformation of the tube, thereby improving the comfort and durability of the device.

[0043] Embodiment 3:

[0044] On the basis of the above embodiment, a video camera port 11 is provided at the end of the multi-lumen tracheal tube body, and a camera hole 11' is opened on the tube wall of the multi-lumen tracheal tube body.

[0045] The video camera port is equipped with a camera with millions of pixels, and the camera is connected to the monitor via a camera interface 12 to observe the image of the affected part.

[0046] The above description is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope of the present claim.

Claims

1. A heatable and temperature-measurable endotracheal tube, used in conjunction with a monitor, characterized in that: It comprises a multi-lumen tracheal tube body, a heater is arranged in the tube wall on one side of the multi-lumen tracheal tube body, a temperature measuring probe is arranged in the tube wall on one side, an end-tidal carbon dioxide monitoring tube is arranged in the tube wall of the multi-lumen tracheal tube body, and the heater, the temperature measuring probe and the end-tidal carbon dioxide monitoring tube are all connected to a monitor.

2. A heatable and temperature-measurable endotracheal tube according to claim 1, characterized in that: The tube wall of the multi-lumen tracheal tube body is provided with a heating body hole, an end-tidal carbon dioxide monitoring interface hole, a temperature measurement interface hole, and an inflation interface hole.

3. A heatable and temperature-measurable endotracheal tube according to claim 1, characterized in that: The heating body is a graphene heating sheet, and the graphene heating sheet is located in the heating body hole of the tube wall of the multi-cavity tracheal tube body.

4. A heatable and temperature-measurable endotracheal tube according to claim 1, characterized in that: The heating body is an electric heating wire, and the electric heating wire is located in the heating body hole of the tube wall of the multi-lumen tracheal tube body.

5. A heatable and temperature-measurable endotracheal tube according to claim 4, characterized in that: The electric heating wire is linear or spiral.

6. A heatable and temperature-measurable endotracheal tube according to claim 2, characterized in that: A Murphy hole is provided at the end of the multi-lumen tracheal tube body, a carbon dioxide monitoring port is provided on the opposite side of the Murphy hole, a carbon dioxide monitoring tube is provided in the carbon dioxide monitoring interface hole of the multi-lumen tracheal tube body, and the carbon dioxide monitoring tube is connected to a monitor through the carbon dioxide monitoring port; An inflatable bag is arranged inside the Murphy hole, a temperature measuring hole is arranged inside the inflatable bag, the temperature measuring probe is located at the temperature measuring hole, and the temperature measuring probe is connected to the monitor through a temperature measuring interface.

7. A heatable and temperature-measurable endotracheal tube according to claim 6, characterized in that: The monitor has the functions of controlling heating, monitoring temperature, and monitoring end-tidal carbon dioxide concentration. The monitor sets the temperature required by the human body to heat the endotracheal tube. The temperature probe on the endotracheal tube simultaneously monitors the airway temperature to achieve real-time monitoring of body temperature. The end-tidal carbon dioxide monitoring tube simultaneously monitors the carbon dioxide content of the gas exhaled from the patient's airway.

8. The heatable and temperature-measurable endotracheal tube according to claim 1, characterized in that: The multi-lumen tracheal tube body is a bronchial tube, a double-lumen bronchial tube or an esophageal airway combined tracheal tube.

9. A heatable and temperature-measurable endotracheal tube according to any one of claims 1 to 8, characterized in that: A video camera port is provided at the end of the multi-cavity tracheal tube body, and a camera hole is opened on the tube wall of the multi-cavity tracheal tube body.

10. The heatable and temperature-measurable endotracheal tube according to claim 9, characterized in that: The video camera port is equipped with a camera with millions of pixels, and the camera is connected to the monitor via a camera interface.

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