Trachea cannula with temperature increasing function

Abstract

The invention relates to the technical field of medical instruments, and discloses a trachea cannula with a temperature increasing function, which comprises an outer cannula, the outer cannula is a double-layer outer tube structure of the trachea cannula, the inner layer of the outer cannula is an inner hose, the outer cannula and the inner hose are nested and connected in a concentric circle shape, and the outer cannula and the inner hose form a trachea cannula body. According to the trachea cannula with the temperature increasing function, by means of the first temperature sensor installed on the outer wall face of the outer cannula body and the second temperature sensor installed in the second butt joint pipe, the temperature of gas at different positions in the trachea cannula body can be monitored in real time. The two temperature sensors are connected with the control valve through wireless communication electric signals and are also associated with a controller of the heating wire, when an external patient body temperature monitoring instrument detects that the body temperature of a patient is lower than 36 DEG C, the first temperature sensor transmits signals to the controller of the heating wire, the heating wire is started to work, and oxygen in the heat insulation pipe is rapidly heated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a tracheal tube with a warming function. BACKGROUND

[0002] Tracheal intubation is a technique that places a specially designed endotracheal tube through the glottis into the trachea, which can provide optimal conditions for airway patency, ventilation and oxygen supply, respiratory tract suction and prevention of aspiration, and is widely used in cardiopulmonary resuscitation and rescue of critically ill patients with respiratory dysfunction, surgical anesthesia, etc. During the process of anesthesia surgery, the patient usually needs to insert a tracheal tube to maintain respiration. However, during this period, the patient often experiences a decrease in body temperature or even hypothermia. Currently, most countermeasures are to use external warming methods, such as using surgical warming blankets, but the actual application effect is not ideal. For patients, improving core temperature is the key to solving the problem of hypothermia. Just like drinking hot water can effectively raise body temperature when a person is losing heat, if the oxygen entering the patient's body can be directly warmed, it will be of great significance to maintain and restore the patient's body temperature during surgery, for example: The human respiratory tract has the function of warming and humidifying inhaled gas. When a tracheal tube is inserted to form an artificial airway, the gas entering the human body loses the normal body warming and humidifying function. When a tracheal tube is inserted to form an artificial airway, the gas entering the human body loses the normal body warming and humidifying function. When cold gas enters the respiratory tract, it will stimulate the airway mucosa, causing the patient to feel uncomfortable and easily leading to coughing and airway spasm. The temperature of the gas can also affect the normal movement of respiratory tract cilia, which is not conducive to the discharge of respiratory tract secretions and increases the risk of lung infection. Moreover, the traditional tracheal tube only has the basic ventilation function and cannot effectively warm the inhaled gas.

[0003] In view of the above problems, it is urgent to make innovative design on the basis of the original tracheal tube structure. SUMMARY

[0004] The purpose of the present application is to provide a tracheal tube with a warming function to solve the problems of losing the normal body warming and humidifying function of the gas entering the human body when a tracheal tube is inserted to form an artificial airway, stimulating the airway mucosa when cold gas enters the respiratory tract, causing the patient to feel uncomfortable, and the traditional tracheal tube only having the basic ventilation function and being unable to effectively warm the inhaled gas.

[0005] To achieve the above object, the present application provides the following technical solutions: a tracheal tube with a temperature increasing function, comprising an outer cannula, which is a double-layered outer tube structure of the tracheal tube, the inner layer of the outer cannula is an inner hose, and the outer cannula and the inner hose are connected in a concentric circular manner, and the outer cannula and the inner hose constitute a tracheal tube body; The length of the inner hose is longer than that of the outer cannula, the outer wall surface of the inner hose is provided with an inflatable air bag, and the outer wall surface of the outer cannula is provided with a temperature sensor one, the end surface of the inflatable air bag abuts against the end surface of the outer cannula, the side wall surface of the inflatable air bag is connected with a connecting tube, and the connecting tube is provided with a connecting pipe one at the interface. The one end of the inner hose is connected with the one end of the heat insulation pipe, and the heat insulation pipe abuts against the port of the outer cannula, the outer wall surface of the heat insulation pipe is symmetrically provided with a wing plate, and the heat insulation pipe is provided with a heating wire, the other end of the heat insulation pipe is connected with a connecting pipe two, and the connecting pipe two is provided as a three-way pipe structure, one port of the connecting pipe two is connected with an adapter one, and the other port of the connecting pipe two is connected with a control valve, and the inlet pipeline of the control valve is provided with an adapter two. The connecting pipe two is internally provided with a limiting hopper, and the limiting hopper is penetrated by a detection end of a temperature sensor two, and the connecting pipe two is connected with the inner part of the heat insulation pipe and the inner hose.

[0006] The above technical solutions are adopted, the outer cannula and the inner hose are nested to form a body, and the functions of temperature increasing, monitoring, sealing and the like are realized by cooperation of various components, the inner hose and the inflatable air bag which are longer than the outer cannula are beneficial to airway sealing, the temperature sensors at different positions accurately monitor the temperature, and various pipes and joints guarantee gas delivery and regulation.

[0007] Preferably, the inner hose and the inflatable air bag are nested, and the inflatable air bag is provided as a spherical structure, and the inflatable air bag is connected with the connecting tube and the connecting pipe one.

[0008] The above technical solutions are adopted, the nested spherical inflatable air bag can closely fit the airway, and is inflated through the connecting tube and the connecting pipe one, thereby enhancing the sealing effect.

[0009] Preferably, the connecting tube is installed at the opening of one side of the wing plate, and the wing plate and the heat insulation pipe are made of heat insulation rubber, and the wing plate and the heat insulation pipe are an integral structure.

[0010] The above technical solutions are adopted, the wing plate and the heat insulation pipe made of heat insulation rubber are integrally arranged, heat loss is reduced, heating efficiency is improved, and the surrounding tissue of the airway is protected.

[0011] Preferably, the detection end of the temperature sensor one penetrates the inner part of the outer cannula and the inner hose, and the temperature sensor one and the temperature sensor two are connected with the control valve through wireless communication electrical signals.

[0012] The temperature sensor one and the temperature sensor two are connected with the control valve through wireless communication, can monitor the gas temperature in real time, accurately control the gas flow and the heating power according to the temperature change, and maintain the suitable gas supply temperature.

[0013] Preferably, the inner wall of the heat insulation pipe is provided with a threaded groove, the threaded groove of the heat insulation pipe is in abutment with the surface of the inner hose, and the heat insulation pipe is provided with a heating wire at the other end.

[0014] The threaded groove of the inner wall of the heat insulation pipe is in abutment with the inner hose, thereby increasing the connection stability and heat insulation.

[0015] Preferably, the threaded groove of the heat insulation pipe is in threaded connection with the nanofiber filter screen frame, and the nanofiber filter screen frame is in clamping connection with the inner hose.

[0016] The threaded groove of the heat insulation pipe is in threaded connection with the nanofiber filter screen frame, thereby effectively intercepting water vapor in the gas, purifying the gas, and reducing the adverse effects on the airway of the patient.

[0017] Preferably, the nanofiber filter screen frame is provided in a cylindrical shape, the cross section of the nanofiber filter screen frame is provided in a T shape, and the outer layer of the nanofiber filter screen frame is provided with a protrusion matched with the threaded groove of the heat insulation pipe.

[0018] The nanofiber filter screen frame in the cylindrical shape and the T-shaped cross section, the outer layer protrusion matched with the threaded groove of the heat insulation pipe, is installed stably, and the function of intercepting water vapor is stable.

[0019] Preferably, the controller of the heating wire is installed on the outer wall of the heat insulation pipe, and the controller of the heating wire is in electrical signal connection with the temperature sensor one.

[0020] The controller of the heating wire is installed on the outer wall of the heat insulation pipe and connected with the temperature sensor one, the heating wire is automatically controlled according to the monitored temperature, and the gas temperature is accurately adjusted.

[0021] Preferably, the temperature sensor two is fixedly installed on the outer wall of the butt joint pipe two, the butt joint pipe two is provided in a three-way pipe structure, and the adapter frame one installed at the two ports of the butt joint pipe two is consistent in structure with the adapter frame two.

[0022] The butt joint pipe two in the three-way pipe structure is connected with the adapter frame one and the control valve, the adapter frame one is consistent in structure with the adapter frame two, the gas is conveniently adapted and connected with the external equipment, and the smooth gas delivery is ensured.

[0023] Preferably, the adapter frame two is provided in a bucket-shaped structure, one end of the adapter frame two with a larger diameter is provided with four arc-shaped pieces, and the outer wall of the four arc-shaped pieces of the adapter frame two is provided with an elastic ring.

[0024] The 4 arc-shaped pieces and the elastic ring of the bucket-shaped adapter two can be tightly connected with external pipelines, prevent gas leakage, and ensure safe and reliable gas delivery.

[0025] Compared with the prior art, the tracheal tube with the heating function has the following beneficial effects: 1. The temperature sensor one installed on the outer wall of the outer cannula and the temperature sensor two installed inside the connecting pipe two can respectively monitor the gas temperature at different positions inside the tracheal tube body in real time. Both temperature sensors are connected to the control valve through wireless communication electrical signals, and the controller of the heating wire is also associated with each other. When the external patient body temperature monitoring instrument detects that the patient's body temperature is lower than 36 degrees, the temperature sensor one transmits a signal to the controller of the heating wire to start the heating wire to quickly heat the oxygen in the heat insulation pipe. At the same time, the temperature sensor two feeds back the oxygen temperature before entering the inner hose in real time, and the control valve accurately adjusts the gas flow and the power of the heating wire according to the data of the two sensors, so that the oxygen temperature entering the patient's body is stably maintained in an appropriate range, efficiently and accurately helping the patient to recover or maintain the normal body temperature during the operation, and significantly improving the low body temperature condition. 2. The spherical inflatable air bag arranged on the outer wall of the inner hose is connected with the connecting pipe one through a thin pipe. After the tracheal tube is inserted into the patient's airway, the inflatable air bag can be inflated to expand by the connecting pipe one. Since the end face of the inflatable air bag abuts against the end face of the outer cannula, the inflatable air bag can tightly adhere to the airway wall after expansion, forming a good sealing effect, effectively preventing gas leakage, and ensuring sufficient and stable oxygen delivery to the patient's lungs, thereby ensuring the safety of the patient's breathing. Compared with other shapes, the spherical inflatable air bag can more uniformly contact the airway wall, reduce the pressure on the local airway, and reduce the risk of damage to the patient's airway mucosa. 3. The heat insulation pipe is connected with the nanofiber filter frame through threads, the nanofiber filter frame is arranged in a cylindrical shape and has a T-shaped cross section, the outer protrusion is matched with the thread groove of the heat insulation pipe, and the nanofiber filter frame is stably installed in the heat insulation pipe and is clamped with the inner hose. When the oxygen containing water vapor passes through the heat insulation pipe, the nanofiber filter frame effectively intercepts the water vapor in the gas by using the characteristics of the nanofiber material, reduces the amount of water vapor entering the inner hose, prevents the water vapor from condensing in the tracheal tube to affect the gas delivery, avoids too much water vapor entering the patient's airway to cause problems such as coughing and respiratory tract infection, and improves the quality and safety of gas delivery. 4. The side wing plate and the heat insulation pipe are made of heat insulation rubber and are in an integrated structure, the connecting thin pipe is installed at the opening on one side of the side wing plate, the integrated structure can effectively reduce the heat generated by the heating wire from being dissipated to the outside, improve the heating efficiency, reduce the energy consumption, and the heat insulation rubber material can avoid the damage of the tissue around the airway of the patient due to heating, ensure the safety of the patient, the threaded groove on one side of the inner wall of the heat insulation pipe is in abutment with the surface of the inner hose, which not only enhances the stability of the connection between the two, but also further plays a heat insulation role, prevents the heat from being transmitted to the external cannula, and maintains the stability of the overall temperature of the tracheal cannula. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall external three-dimensional structure of the present application; Figure 2 It is a schematic diagram of the overall split three-dimensional structure of the present application; Figure 3 It is a schematic diagram of the overall internal three-dimensional structure of the present application; Figure 4 It is a schematic diagram of the installation of the external cannula and the heat insulation pipe of the present application; Figure 5 It is a schematic diagram of the installation of the external cannula and the inflatable air bag of the present application; Figure 6 It is a schematic diagram of the overall internal three-dimensional structure of the present application; Figure 7 It is a schematic diagram of the installation of the external cannula and the heat insulation pipe of the present application; Figure 8 It is a schematic diagram of the installation of the heat insulation pipe and the second docking pipe of the present application; Figure 9 It is a schematic diagram of the installation of the second docking pipe and the limiting bucket of the present application; Figure 10 It is a schematic diagram of the internal side cut three-dimensional structure of the second docking pipe of the present application.

[0027] In the figure: 1, external cannula; 2, inner hose; 3, inflatable air bag; 4, connecting thin pipe; 5, first docking pipe; 6, temperature sensor one; 7, heat insulation pipe; 8, side wing plate; 9, nanofiber filter frame; 10, heating wire; 11, second docking pipe; 12, temperature sensor two; 13, limiting bucket; 14, adapter one; 15, control valve; 16, adapter two. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Referring to Figures 1-10 The application provides a technical scheme: a tracheal tube with a warming function, comprising an outer cannula 1, an inner hose 2, an inflatable air bag 3, a connecting tube 4, a butt joint pipe 1 5, a temperature sensor 1 6, a heat insulation pipe 7, a side wing plate 8, a nanofiber filter screen frame 9, a heating wire 10, a butt joint pipe 2 11, a temperature sensor 2 12, a limiting hopper 13, an adapter 1 14, a control valve 15 and an adapter 2 16; The outer cannula 1 is a double-layer outer tube structure of the tracheal tube, the inner layer of the outer cannula 1 is the inner hose 2, the outer cannula 1 and the inner hose 2 are connected in a concentric circle shape, and the outer cannula 1 and the inner hose 2 constitute a tracheal tube body; The length of the inner hose 2 is longer than the length of the outer cannula 1, the outer wall surface of the inner hose 2 is provided with the inflatable air bag 3, the outer wall surface of the outer cannula 1 is provided with the temperature sensor 1 6, the end surface of the inflatable air bag 3 abuts against the end surface of the outer cannula 1, the side wall surface of the inflatable air bag 3 is connected with the connecting tube 4, the interface of the connecting tube 4 is provided with the butt joint pipe 1 5, the inner hose 2 is nested with the inflatable air bag 3, the inflatable air bag 3 is provided in a spherical structure, the inflatable air bag 3 is connected with the connecting tube 4 and the butt joint pipe 1 5, the connecting tube 4 is connected with one side opening of the side wing plate 8, the side wing plate 8 and the heat insulation pipe 7 are made of heat insulation rubber, and the side wing plate 8 and the heat insulation pipe 7 are integrated; The Figures 1-10 As shown in the accompanying drawings, after the patient is properly anesthetized and the airway is prepared, the medical staff holds the tracheal tube body, slowly inserts the outer cannula 1 and the inner hose 2 into the airway of the patient, closely observes the changes of vital signs of the patient during the insertion process, pays attention to keeping the position and angle of the tracheal tube correct, avoids damaging the airway mucosa, stops the insertion operation when the tracheal tube reaches the appropriate depth, and at this time, the exposed end of the inner hose 2 is connected with the heat insulation pipe 7, as shown in the accompanying drawings, Figures 1-4 Since the heat insulation pipe 7 and the side wing plate 8 are integrated, it is convenient to connect with external equipment; A special inflation device is connected with the butt joint pipe 1 5, the inflatable air bag 3 is inflated through the connecting tube 4, during the inflation process, the inflation of the inflatable air bag 3 and the changes of the airway pressure of the patient are closely observed, when the inflatable air bag 3 is fully inflated and closely adheres to the airway wall of the patient, forms a good seal, and the airway pressure is maintained within the normal range, the inflation is stopped, during the operation process, the inflation degree of the inflatable air bag is judged whether appropriate or not by observing the values on the pressure monitoring equipment and combining with clinical experience; After the operation is completed, first, the external air supply equipment is closed, then a special deflation device is connected with the butt joint pipe 1 5, the gas in the inflatable air bag 3 is slowly released, during the deflation process, the changes of vital signs of the patient are also closely observed, after the inflatable air bag 3 is completely deflated, the tracheal tube is carefully pulled out from the airway of the patient; The extracted tracheal tube is preliminarily cleaned, and the outside of the tracheal tube is wiped with clean gauze or cotton balls to remove secretions, bloodstains and other contaminants. Then, the tracheal tube is placed in a dedicated medical instrument cleaning and disinfecting device, and thoroughly cleaned and disinfected according to the specified cleaning and disinfecting procedures to ensure that the tracheal tube meets the hygiene standards for the next use. After disinfection, the tracheal tube is dried, which can be done naturally or using a dedicated drying device. After drying, the tracheal tube is checked for any damage, and the damaged parts are replaced or repaired. The cleaned, disinfected and checked tracheal tube is then re-packed in a sterile package and stored in a designated location for future use. The inner hose 2 is connected to one end of the heat insulation pipe 7, and the heat insulation pipe 7 is in contact with the port of the outer tracheal tube 1. The threads of the heat insulation pipe 7 are connected to the nanofiber filter net rack 9, and the nanofiber filter net rack 9 is connected to the inside of the inner hose 2. The nanofiber filter net rack 9 is in the shape of a cylinder, and the cross-section of the nanofiber filter net rack 9 is in the shape of T. The outer layer of the nanofiber filter net rack 9 is provided with a protrusion that matches the thread groove of the heat insulation pipe 7. The outer wall of the heat insulation pipe 7 is symmetrically provided with side wing plates 8, and the heat insulation pipe 7 is provided with heating wires 10 inside. The controller of the heating wires 10 is installed on the outer wall of the heat insulation pipe 7, and the controller of the heating wires 10 is electrically connected to the temperature sensor 6. The detection end of the temperature sensor 6 penetrates the inside of the outer tracheal tube 1 and the inner hose 2, and the temperature sensor 6 and the temperature sensor 12 are both connected to the control valve 15 through wireless communication. One side of the inner wall of the heat insulation pipe 7 is provided with a thread groove, and the thread groove of the heat insulation pipe 7 is in contact with the surface of the inner hose 2. The heat insulation pipe 7 is provided with heating wires 10 on the other end, and the other end of the heat insulation pipe 7 is connected to the adapter pipe 11. The adapter pipe 11 is in the structure of a three-way pipe, and one port of the adapter pipe 11 is connected to the adapter rack 14. The other port of the adapter pipe 11 is connected to the control valve 15, and the inlet pipe of the control valve 15 is provided with the adapter rack 16. The adapter pipe 11 is provided with a limiting bucket 13 inside, and the limiting bucket 13 is penetrated by the detection end of the temperature sensor 12. The adapter pipe 11 connects the inside of the heat insulation pipe 7 and the inner hose 2. The temperature sensor 12 is fixedly installed on the outer wall of the adapter pipe 11. The adapter pipe 11 is in the structure of a three-way pipe, and the adapter rack 14 and the adapter rack 16 installed on the two ports of the adapter pipe 11 are consistent in structure. The adapter rack 16 is in the structure of a bucket, and the larger end of the adapter rack 16 is provided with four arc-shaped pieces. The outer wall of the four arc-shaped pieces of the adapter rack 16 is provided with an elastic ring. The drawings Figures 1-10As shown, after the pipeline is inserted into the trachea of the patient, the pipeline of the external gas supply device is connected with the adapter 16, ensuring that the connection is tight and there is no gas leakage. The bucket-shaped structure of the adapter 16 and the elastic ring on the outer wall surface of the 4 arc-shaped pieces can effectively enhance the sealing performance of the connection with the external pipeline. After the connection is completed, the gas supply device is turned on, and the gas begins to flow into the tracheal tube. The gas first passes through the control valve 15. At this time, the control valve 15 preliminarily adjusts the gas flow according to the preset program and the signal fed back by the temperature sensor, so as to ensure that the appropriate gas flow rate enters the docking pipe 11. The adapter 1 4 connected at one port of the docking pipe 11 serves as an adapter node, facilitating the connection with other devices or pipelines, and further providing a connection interface for additional gas monitoring devices, gas purification devices, or gas shunting. When the gas enters the docking pipe 11, the temperature sensor 12 immediately monitors the temperature of the gas in real time and transmits the temperature data to the control valve 15 in the form of an electrical signal. At the same time, the gas passes through the limiting bucket 13, which plays a role in flow limiting and rectification, so that the gas enters the heat insulation pipe 7 more uniformly. After the gas flows into the heat insulation pipe 7, the temperature sensor 1 6 monitors the temperature of the gas again. If the temperature sensor 1 6 or the temperature sensor 12 monitors that the temperature of the gas is lower than the set lower limit of 38℃, the temperature sensor 1 6 transmits the signal to the controller of the heating wire 10, and the controller starts the heating wire 10 to heat the gas in the heat insulation pipe 7. With the heating, the temperature of the gas gradually rises, and the temperature sensor 1 6 and the temperature sensor 12 continuously monitor the temperature of the gas and feed back the real-time temperature data to the control valve 15. When the temperature of the gas approaches or reaches the upper limit of 40℃, the control valve 15 appropriately reduces the gas flow according to the feedback signal, and the controller of the heating wire 10 reduces the power of the heating wire 10, so that the temperature of the gas is stably maintained in the appropriate range of 38-40℃. The gas containing water vapor flows through the heat insulation pipe 7, and the nanofiber filter frame 9 plays a blocking role. After the temperature adjustment and water vapor interception treatment, the gas flows into the inner hose 2 from the heat insulation pipe 7, and is finally delivered to the lungs of the patient, providing the patient with appropriate temperature and clean breathing gas. During the entire gas delivery process, medical personnel should continuously monitor the vital signs of the patient. The nanofiber material of the nanofiber filter screen frame 9 has a special pore structure, which can adsorb and intercept water vapor droplets in the gas. A new nanofiber filter screen frame 9 is replaced in advance before each operation. The nanofiber filter screen frame 9 can also be taken out and replaced by pulling out the heat insulation pipe 7 and rotating the nanofiber filter screen frame 9 during the operation. When the removed nanofiber filter screen frame 9 is cleaned, a special medical cleaning agent is used to operate according to the specified cleaning process. After cleaning and drying, the next replacement is installed back into the heat insulation pipe 7, so as to intercept the water vapor generated by heating the gas, reduce the amount of water vapor entering the inner hose 2, and prevent the water vapor from affecting the gas delivery and the patient's airway.

[0030] Working principle: when using the tracheal tube with heating function, first prepare the tracheal tube, insert the tracheal tube body composed of the outer cannula 1 and the inner hose 2 into the patient's airway. Since the inner hose 2 is longer than the outer cannula 1, and the inflation airbag 3 on the outer wall is in an unexpanded state at this time, after the tracheal tube is in place, the inflation airbag 3 is inflated by the butt joint pipe one 5 and the connecting tube 4, so that it is inflated and adheres to the wall of the patient's airway to form a seal, preventing gas leakage and ensuring ventilation effect. The adapter frame one 14 is connected to one port of the butt joint pipe two 11, which serves as an adapter node to provide an interface with a gas monitoring device or a gas shunt. External oxygen and other gases enter the adapter frame two 16, and the design of the adapter frame two 16 and the elastic ring ensures a tight connection with the external pipeline. The gas enters the butt joint pipe two 11 through the control valve 15. The butt joint pipe two 11 has a three-way pipe structure, which can realize gas switching. When the gas enters the butt joint pipe two 11, the temperature sensor two 12 performs initial monitoring of the temperature. The limiting hopper 13 can limit the flow and rectify the gas to a certain extent. The gas flows into the heat insulation pipe 7 from the butt joint pipe two 11. The heating wire 10 in the heat insulation pipe 7 can heat the gas. The temperature sensor one 6 penetrates through the outer cannula 1 and the inner hose 2 to monitor the temperature of the gas. If the temperature is lower than the set value, the temperature sensor one 6 will transmit a signal to the controller of the heating wire 10 to start the heating wire 10. The temperature sensor two 12 also feeds back the temperature signal to the control valve 15. The control valve 15 adjusts the gas flow and the power of the heating wire 10 according to the signals of the two sensors to ensure that the temperature of the gas is appropriate. When the gas flows through the heat insulation pipe 7, the nanofiber filter screen frame 9 connected with the heat insulation pipe 7 by screw plays a role in intercepting the water vapor in the gas, reducing the amount of water vapor entering the inner hose 2, and preventing the water vapor from affecting the gas delivery and the patient's airway. After heating and water vapor interception, the gas flows into the inner hose 2 from the heat insulation pipe 7, and is finally delivered to the patient's lungs to provide the patient with appropriate temperature and clean breathing gas.

[0031] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and changes can be made by those skilled in the art without departing from the spirit and principles of the present application.

Claims

1. A tracheal intubation tube with a warming function, comprising: An outer cannula (1) is a double-layer outer tube structure of an endotracheal cannula, wherein the inner layer of the outer cannula (1) is an inner hose (2), and the outer cannula (1) and the inner hose (2) are nested and connected in a concentric circle shape, and the outer cannula (1) and the inner hose (2) constitute the endotracheal cannula body; The invention is characterized in that: the inner hose (2) is longer than the outer tube (1), and an expansion air bag (3) is provided on the outer wall of the inner hose (2), and a temperature sensor (6) is installed on the outer wall of the outer tube (1), the end face of the expansion air bag (3) is in contact with the end face of the outer tube (1), and the side wall of the expansion air bag (3) is connected to the connecting tube (4), and a butt-joint tube (5) is installed at the interface of the connecting tube (4); One end of the inner hose (2) is butted against one end of the insulation tube (7), and the insulation tube (7) is butted against the port of the outer insert (1), the outer wall of the insulation tube (7) is symmetrically provided with side wing plates (8), and a heating wire (10) is provided in the insulation tube (7), the other end of the insulation tube (7) is snap-connected with the butt-joint pipe 2 (11), and the butt-joint pipe 2 (11) is set as a three-way pipe structure, one port of the butt-joint pipe 2 (11) is snap-connected with the adapter frame 1 (14), and the other port of the butt-joint pipe 2 (11) is snap-connected with the control valve (15), and the inlet pipe of the control valve (15) is installed with the adapter frame 2 (16); A limiting bucket (13) is installed inside the second butt-joint pipe (11), and the limiting bucket (13) is penetrated by the detection end of the second temperature sensor (12), and the second butt-joint pipe (11) is connected to the inside of the insulation pipe (7) and the inner hose (2).

2. The endotracheal tube with a warming function according to claim 1, characterized in that: The inner hose (2) and the expansion airbag (3) are nested together, and the expansion airbag (3) is configured as a spherical structure. The expansion airbag (3) is connected to the connecting tube (4) and the butt joint tube (5).

3. The endotracheal tube with a warming function according to claim 1, characterized in that: The connecting thin tube (4) is installed with an opening on one side of the side wing plate (8), and the side wing plate (8) and the insulation pipe (7) are both made of insulation rubber, and the side wing plate (8) and the insulation pipe (7) are an integrated structure.

4. The endotracheal intubation tube with a warming function according to claim 1, characterized in that: The detection end point of the temperature sensor 1 (6) passes through the outer insert tube (1) and the inner hose (2), and the temperature sensor 1 (6) and the temperature sensor 2 (12) are both connected to the control valve (15) via wireless communication electrical signals.

5. The endotracheal tube with a warming function according to claim 1, characterized in that: A threaded groove is provided on one side of the inner wall of the heat insulation tube (7), and the threaded groove of the heat insulation tube (7) abuts against the surface of the inner hose (2), and a heating wire (10) is provided in the other end of the heat insulation tube (7).

6. The endotracheal intubation tube with a warming function according to claim 1, characterized in that: The threads of the heat-insulating tube (7) are threadedly connected to the nanofiber filter rack (9), and the nanofiber filter rack (9) is internally engaged and connected to the inner hose (2).

7. The endotracheal tube with a warming function according to claim 6, characterized in that: The nanofiber filter rack (9) is configured to be cylindrical, and the cross section of the nanofiber filter rack (9) is configured to be T-shaped, and the outer layer of the nanofiber filter rack (9) is provided with a protrusion that matches the thread groove of the insulation pipe (7).

8. The endotracheal tube with a warming function according to claim 1, characterized in that: The controller of the heating wire (10) is installed on the outer wall of the insulation tube (7), and the controller of the heating wire (10) is connected to the temperature sensor (6) via an electrical signal.

9. The endotracheal tube with a warming function according to claim 1, characterized in that: The temperature sensor 2 (12) is fixedly mounted on the outer wall of the butt-joint pipe 2 (11), and the butt-joint pipe 2 (11) is configured as a three-way pipe structure, and the adapter frame 1 (14) mounted at the two ports of the butt-joint pipe 2 (11) has the same structure as the adapter frame 2 (16).

10. The endotracheal tube with warming function according to claim 1, characterized in that: The adapter frame 2 (16) is configured as a bucket-shaped structure, and the end with a larger diameter of the adapter frame 2 (16) is configured as a four-petal arc-shaped piece, and an elastic ring is provided on the outer wall surface of the four-petal arc-shaped piece of the adapter frame 2 (16).

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