Airbag pressure and pH value two-parameter real-time monitoring assembly and medical tracheal catheter

Abstract

The invention belongs to the technical field of medical instruments, particularly relates to an airbag pressure and pH value two-parameter real-time monitoring assembly and a medical tracheal catheter, and aims to facilitate monitoring of airbag pressure and surrounding effusion conditions and maintenance of related sensors. The assembly comprises an air injection hose, a three-way pipe, an air bag, an air injection pipe, a connecting piece and an air pressure sensor. The pH sensor probe is arranged on one side of the air bag; a structure for fixing a pH sensor probe is arranged on the inner side of the air bag; an annular groove is formed in the outer wall of the guide pipe, a rotatable lantern ring is installed in the groove through a guide rail, a balancing weight is arranged in the lantern ring so that a suction inlet of the lantern ring can be kept downward all the time, and the lantern ring is connected with the suction pipe to extract accumulated liquid. A hemispherical head is arranged at the end of the guide pipe and is matched with a clamping groove in the inner wall of the guide pipe through an insertion ring and a rubber ring, and a temperature and humidity sensor is embedded in a ventilation hole in the hemispherical head; according to the scheme, damage of the catheter to the inner wall of the trachea can be reduced, airway management safety is improved, and accumulated liquid removal and sensor maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a balloon pressure and pH dual parameter real-time monitoring assembly and a medical tracheal tube. BACKGROUND

[0002] The tracheal tube is a medical device inserted into the trachea and / or bronchus of a patient to create a temporary artificial respiratory passage for the patient, especially for patients who cannot breathe autonomously. During general anesthesia, the tracheal tube is mainly used for patients whose respiratory tract is difficult to keep unobstructed, such as intracranial surgery, thoracic surgery, special body positions such as prone position or sitting position during general anesthesia surgery, and patients with jaw, extreme obesity, general anesthetics with obvious respiratory inhibition or muscle relaxants, and patients with facial, neck, and facial surgery, etc. The above situations all need to be intubated. At the same time, the tracheal tube plays an important role in the rescue of critically ill patients, such as respiratory failure, cardiopulmonary resuscitation, drug poisoning, and severe asphyxia of newborns, which must use tracheal intubation technology.

[0003] At present, the tracheal tube in the prior art still has the following problems when in use: 1. The pressure in the balloon is usually monitored by an externally connected pressure gauge or sensor. These components are often difficult to quickly detach and replace during later maintenance, increasing the complexity of clinical use; 2. Respiratory tract secretions or regurgitated stomach contents can easily accumulate above the balloon. If these accumulated fluids are not removed in time, complications may occur; 3. In the prior art, some catheters have a suction channel, but the suction port position is fixed, and when the patient's position changes, it is difficult to ensure that the suction port is always at the lowest point, affecting the effect of fluid removal. SUMMARY

[0004] The present application aims to solve the problems of inconvenient balloon pressure monitoring, incomplete fluid removal, and complex sensor maintenance of existing medical tracheal tubes in use by developing an integrated dual parameter monitoring assembly and catheter structure. Tracheal intubation patients often leak or are injured due to abnormal balloon pressure, and fluid accumulation can easily cause infection. However, existing designs rely on external equipment, increasing the operation burden. Therefore, we start from simplifying monitoring and maintenance. First, we design a tee pipe and a detachable connector to quickly install and replace the pressure sensor. Second, we introduce a pH sensor probe fixed to the side of the balloon, which can be easily detached through a buckle structure to avoid contamination from long-term use. At the same time, for fluid removal, we consider the influence of gravity on the patient's bed position and develop a rotating collar with a counterweight to automatically position the suction port at the lowest point without the need for an additional power source. Finally, we add a hemispherical head to the end of the catheter to embed a temperature and humidity sensor, optimize oxygen injection parameters, and improve comfort.

[0005] Compared with the prior art (such as a simple fixed suction port), the scheme improves the effusion removal efficiency through gravity self-positioning, logically reduces manual intervention, reduces the risk of infection, the structure meets the maintenance requirements, shortens the cleaning time, the overall integration reduces the dependence on external equipment, improves the clinical safety and convenience, forms a hierarchical protection: the independent component covers the core monitoring, the catheter extends to the suction and the end optimization.

[0006] The double-parameter monitoring provides a precise trigger signal (the abnormal pH value prompts the existence of effusion, and the pressure data guarantees the normal function of the air bag) for effusion suction, the self-adaptive suction structure efficiently removes the effusion, the detachable structure guarantees the long-term stability of the monitoring and suction functions, the end integrated design realizes the monitoring while protecting the airway, and finally forms a whole-process solution scheme of "monitoring-suction-maintenance-protection".

[0007] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: The air bag pressure and pH value double-parameter real-time monitoring assembly comprises: The inflation hose is connected to the air bag at a first end and connected to the tee pipe at a second end; The other two interfaces of the tee pipe are connected to the inflation pipe and the connecting piece, respectively; A check valve is arranged on the inflation pipe to prevent gas backflow; A gas pressure sensor is mounted on the connecting piece, and a probe of the gas pressure sensor extends into the tee pipe to detect the pressure in the air bag in real time; A pH sensor probe is mounted in a mounting seat on one side of the air bag to detect the pH value of the effusion near the air bag after the air bag is inflated in the patient's trachea; A fixing structure is arranged on the air bag to detachably fix the pH sensor probe in the mounting seat.

[0008] In a possible design, the connecting piece comprises a fixed pipe and a connecting sleeve sleeved outside the fixed pipe; One end of the fixed pipe extends into the tee pipe, and the connecting sleeve is threadedly connected with the port of the tee pipe; The probe of the gas pressure sensor penetrates through the fixed pipe and extends into the tee pipe.

[0009] In a possible design, the fixing structure comprises a blocking strip and a pair of circular buckles; The blocking strip is fixed on one side of the air bag, and the pair of circular buckles are arranged between the blocking strip and the air bag to jointly hold the pH sensor probe to achieve the limiting and fixing of the pH sensor probe.

[0010] In a possible design, one end of the fixed pipe extending into the tee pipe is provided with a sealing ring I, and the outer wall of the sealing ring I abuts against the inner wall of the port of the tee pipe. The inner wall of the connecting sleeve is embedded with a sealing ring II, which abuts against the outer wall of the tee pipe; The sealing ring I and the sealing ring II are used together to enhance the sealing performance of the connecting part of the fixed pipe and the tee pipe.

[0011] The medical tracheal tube further comprises the above-mentioned airbag pressure and pH dual-parameter real-time monitoring assembly, and further comprises: The airbag fixing sleeve is arranged on the outer wall of the catheter; A suction structure is arranged on the catheter, which is used to suck out the effusion according to the detection result of the pH sensor probe after the airbag is inflated in the trachea; The suction structure comprises a suction pipe and a sleeve ring.

[0012] In a possible design, the suction structure further comprises an annular groove I arranged on the outer wall of the catheter, and the sleeve ring is rotatably connected in the annular groove I through a guide rail; An annular groove II is formed on the side of the sleeve ring away from the airbag, and a sealing ring fixed in the annular groove I is sealingly and slidably connected in the annular groove II; One end of the suction pipe penetrates through the sealing ring and extends into the sleeve ring; An air inlet is formed on the outer wall of the sleeve ring, and a counterweight corresponding to the air inlet is fixed on the inner wall of the sleeve ring; Through the counterweight, the sleeve ring rotates under the action of gravity and always keeps the air inlet at the lowest point, so as to facilitate the extraction of effusion.

[0013] In a possible design, the outer wall of the catheter is provided with a mounting gap and a mounting hole; The gas injection hose is clamped in the mounting gap, and the suction pipe is arranged in the mounting hole; The gas injection hose and the suction pipe are respectively limited by the mounting gap and the mounting hole.

[0014] In a possible design, the outer wall of the catheter is provided with a limiting ring; The outer wall of the limiting ring is provided with a limiting groove I and a limiting groove II, the limiting groove I is used to bind the gas injection hose, and the limiting groove II is used to bind the suction pipe; The inner wall of the limiting ring is fixed with a rubber sleeve, which is arranged on the outer wall of the catheter to increase the friction.

[0015] In a possible design, the end of the catheter is provided with a hemispherical head; The hemispherical head is fixed by being inserted into the rubber ring on the outer wall of the ring and being clamped in the clamping groove in the inner wall of the catheter end; A ventilation hole is formed in the hemispherical head and communicates with the catheter, and a temperature sensor and a humidity sensor are embedded in the ventilation hole to detect the temperature and humidity of the oxygen.

[0016] In a possible design, the end of the vent hole is provided with a circular arc chamfer.

[0017] Beneficial effects: in the application, the clamping of the rubber ring and the clamping groove can fix the hemispherical head at one end of the catheter, so that when the catheter is inserted into the trachea of the patient, the catheter can avoid causing damage to the inner wall of the trachea, and the temperature sensor and the humidity sensor can detect the temperature and humidity of the oxygen injected into the trachea of the patient, so as to improve the safety and comfort of airway management, and the temperature sensor and the humidity sensor can be easily taken out of the catheter, facilitating cleaning and replacement in the later stage; In the application, the pH sensor probe installed on one side of the air bag can detect the effusion near the air bag, when the effusion occurs, the effusion can be sucked out through the suction pipe, in addition, when the patient is in a bedridden state, the sleeve ring rotates under the action of the counterweight, so that the suction inlet is always located at the lowermost part of the sleeve ring, and the effusion can be sucked out to the maximum extent through cooperation with the suction pipe, so as to avoid the discomfort of the patient caused by the effusion; In the application, when the temperature sensor, the humidity sensor, the pH sensor probe and the air pressure sensor are damaged or need to be cleaned, the blocking bar can be moved to unblock the pH sensor probe, the pH sensor probe can be taken out, the connecting piece and the tee pipe can be unconnected, and the air pressure sensor can be taken out, and then the insertion ring can be taken out from one end of the catheter, so that the temperature sensor, the humidity sensor, the pH sensor probe and the air pressure sensor can be cleaned and replaced, and the operation is simple.

[0018] In the application, the hemispherical head is clamped with the catheter through the insertion ring, so that the inner wall of the trachea is not damaged during insertion, and the temperature and humidity sensors can detect the oxygen injection parameters, improve the safety and comfort of airway management, and facilitate cleaning and replacement. The suction inlet is always located at the lowermost part of the sleeve ring under the action of the counterweight, and the effusion can be sucked out to the maximum extent through cooperation with the suction pipe, so as to reduce the discomfort of the patient. At the same time, when the sensors are damaged or need to be cleaned, the blocking bar and the connecting piece can be conveniently disassembled, and the insertion ring can be taken out, so that the temperature, humidity, pH value sensor and air pressure sensor can be cleaned or replaced, the operation is simple, and the maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional explosion structure schematic view of the tee pipe, the connecting piece and the gas injection pipe of the air bag pressure and pH value double parameter real-time monitoring assembly provided by the application; Figure 2 It is a three-dimensional sectional structure schematic view of the connecting sleeve and the fixed pipe of the air bag pressure and pH value double parameter real-time monitoring assembly provided by the application; Figure 3A three-dimensional structural diagram of the airbag and inflation hose of the airbag pressure and pH value dual-parameter real-time monitoring component provided by the present invention. Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a three-dimensional structural schematic diagram of the medical endotracheal tube provided by the present invention; Figure 6 This is a three-dimensional exploded structural diagram of the catheter, collar, and sealing ring of the medical endotracheal tube provided by the present invention; Figure 7 for Figure 6 Enlarged structural diagram at point B; Figure 8 This is a cross-sectional view of the medical endotracheal tube provided by the present invention. Figure 9 A three-dimensional structural schematic diagram of the limiting ring of the medical endotracheal tube provided by the present invention; Figure 10 This is a three-dimensional exploded view of the hemispherical head, insertion ring, and catheter of the medical endotracheal tube provided by the present invention. Figure 11 This is a three-dimensional cross-sectional view of the hemispherical head of the medical endotracheal tube provided by the present invention.

[0020] In the diagram: 1. Inflation hose; 2. Tee; 3. Inflation tube; 4. Check valve; 5. Connector; 6. Connecting sleeve; 7. Internal thread; 8. Sealing ring I; 9. Fixing tube; 10. Sealing ring II; 11. Pressure sensor; 12. External thread; 13. Airbag; 14. Mounting groove; 15. Mounting base; 16. pH sensor probe; 17. Stop bar; 18. Circular buckle; 19. Guide tube; 20. Installation gap; 21. Installation 21. Hole; 22. Suction pipe; 23. Annular groove I; 24. Guide rail; 25. Collar; 26. Sealing ring; 27. Suction inlet; 28. Counterweight; 29. ​​Limiting ring; 30. Limiting groove I; 31. Limiting groove II; 32. Hemispherical head; 33. Ventilation hole; 34. Temperature sensor; 35. Humidity sensor; 36. Insertion ring; 37. Rubber ring; 38. Slot; 39. Rounded chamfer; 40. Annular groove II; 41. Rubber sleeve. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In one embodiment: Refer to Figures 1-4The system includes a dual-parameter real-time monitoring component for airbag pressure and pH value, comprising an injection hose 1, a three-way valve 2, an airbag 13, an injection tube 3, a connector 5, a pressure sensor 11, a check valve 4, and a pH sensor probe 16. The injection hose 1 serves as the key channel for gas transmission, with its two ends fixedly connected to the three-way valve 2 and the airbag 13, respectively. The three-way valve 2 functions as a gas diversion and connection point for the various components. Its two ports are respectively fitted with the injection tube 3 and the connector 5.

[0023] The tee tube 2 is injection molded from transparent polycarbonate (PC) material, which makes it easy for medical staff to visually observe the internal airflow or liquid conditions. Its inner wall is polished to reduce condensation and ensure a clear view.

[0024] Reference Figure 1 and Figure 3 The inflation tube 3 is used to inject gas into the cuff 13, causing it to inflate within the patient's trachea. This serves to secure the tubing 19 and prevent leakage. A check valve 4 is installed on the inflation tube 3 to prevent backflow of gas injected into the cuff 13 through the inflation tube 3. When gas is injected into the cuff 13, the gas can smoothly enter the cuff 13 through the inflation tube 3. When inflation stops, the check valve 4 automatically closes to prevent backflow of gas within the cuff 13, thereby ensuring stable pressure within the cuff 13 and guaranteeing its normal function within the patient's trachea.

[0025] The check valve 4's interface design conforms to the standard Luer tapered connector specification, making it compatible with common medical syringes or pressure gauges, ensuring versatility.

[0026] Reference Figure 1 and Figure 2 The connector 5 includes a fixed tube 9 and a connecting sleeve 6 fixedly sleeved on the outer wall of the fixed tube 9. One end of the fixed tube 9 extends into the tee pipe 2, and the connecting sleeve 6 is sleeved on the outer wall of the tee pipe 2. One port of the tee pipe 2 has an external thread 12 on its outer wall, and the inner wall of the connecting sleeve 6 has an internal thread 7. Through the cooperation of the internal thread 7 and the external thread 12, the connecting sleeve 6 and one port of the tee pipe 2 are threadedly connected. This facilitates the installation, maintenance, and replacement of the connector 5 and related components.

[0027] Reference Figure 1 and Figure 2 The probe of the pressure sensor 11 is fixedly inserted through the fixing tube 9 and extends into the three-way tube 2 to detect the air pressure inside the airbag 13 in real time. With this design, the pressure sensor 11 can accurately sense pressure changes inside the airbag 13. When the airbag 13 leaks, the pressure sensor 11 can detect the pressure abnormality in a timely manner and transmit the signal to relevant monitoring equipment so that medical personnel can promptly detect and handle the situation, avoiding clinical risks caused by abnormal pressure in the airbag 13.

[0028] Reference Figure 2 To ensure a tight seal between the fixed pipe 9 and the three-way pipe 2, a sealing ring I8 is fixed to the end of the fixed pipe 9 furthest from the pressure sensor 11. The outer wall of the sealing ring I8 abuts tightly against the inner wall of one of the ports of the three-way pipe 2. Simultaneously, a sealing ring II10 is fixedly embedded in the inner wall of the connecting sleeve 6 near the pressure sensor 11, and the sealing ring II10 abuts against the three-way pipe 2. These two sealing rings effectively prevent gas leakage from the connection between the fixed pipe 9 and the three-way pipe 2, ensuring the accuracy of the pressure detection.

[0029] Reference Figure 3 and Figure 4 A pH sensor probe 16 is positioned on one side of the airbag 13 and is used to detect fluid accumulation after the airbag 13 inflates in the patient's trachea. The pH sensor probe 16 employs solid-state ISFET (ion-sensitive field-effect transistor) technology, which is more durable and smaller than traditional glass electrodes. Its surface is coated with an anti-biocontamination coating to prevent mucin adhesion from affecting measurement sensitivity. The airbag 13 has a fixing structure for securing the pH sensor probe 16. This fixing structure includes a retainer 17 fixed to one side of the airbag 13, and a mounting groove 14 on one side of the airbag 13. A mounting base 15 is fixed within the mounting groove 14, and the pH sensor probe 16 is installed within the mounting base 15. Circular clips 18 are provided between one side of the retainer 17 and one side of the airbag 13, and the two circular clips 18 cooperate to limit the movement of the pH sensor probe 16. When it is necessary to install the pH sensor probe 16 onto the airbag 13, the probe is placed into the mounting base 15, and then the two circular clips 18 cooperate to secure the probe firmly to the mounting base 15. Conversely, when the pH sensor probe 16 needs to be disassembled for cleaning, replacement, or other operations, the probe can be easily removed simply by opening the circular clip 18. This fixing structure ensures the stable installation of the pH sensor probe 16 on the airbag 13 while also facilitating its maintenance and management.

[0030] Reference Figure 5 , Figure 6 and Figure 8This medical endotracheal tube relates to the field of medical device technology. It includes the aforementioned real-time monitoring component for both cuff pressure and pH value, and also includes a tube 19. A cuff 13 is fixedly fitted onto the outer wall of the tube 19. The tube 19 serves as the main channel for gas delivery and patient respiration. Its inner diameter and length are designed according to different usage needs and patient conditions (such as patient age, weight, etc.). The outer wall of the tube 19 has an installation gap 20 and an installation hole 21. The inflatable tubing 1 is engaged within the installation gap 20, and the inhalation tube 22 is positioned within the installation hole 21. Through the cooperation of the installation gap 20 and the installation hole 21, the inflatable tubing 1 and the inhalation tube 22 are restrained, ensuring they adhere to the tube 19 and move forward and bend with it. This design avoids the messy arrangement of the inflatable tubing 1 and the inhalation tube 22 during use of the tube 19, ensuring the integrity and stability of the tube 19 system and facilitating operation and management by medical personnel.

[0031] The suction tube 22 is an enhanced hose that is resistant to negative pressure collapse. Its wall hardness is slightly higher than that of the air injection hose 1 in order to withstand the negative pressure generated during suction.

[0032] The entire length of the catheter 19 has an X-ray-proof radiopaque line embedded in its wall, which facilitates the confirmation of the exact location of the catheter tip and the balloon under chest X-ray.

[0033] Reference Figures 5-7 A suction structure is installed on the conduit 19 to extract fluid when the airbag 13 inflates in the trachea. The suction structure includes a suction tube 22, a collar 25, and other components. The outer wall of the conduit 19 has an annular groove I 23, located on one side of the airbag 13. A guide rail 24 is fixed to the inner wall of the annular groove I 23, and a collar 25 is installed within the annular groove I 23. The collar 25 is rotatably connected to the annular groove I 23 via the guide rail 24. This rotatable connection allows the collar 25 to rotate freely within the annular groove I 23. An annular groove II 40 is located on the side of the collar 25 away from the airbag 13. A sealing ring 26 is slidably connected within the annular groove II 40 and is fixed within the annular groove I 23. The sealing ring 26 ensures a tight seal between the collar 25 and the sealing ring 26, while also allowing the collar 25 to rotate relative to the sealing ring 26. One end of the suction tube 22 is fixedly inserted through the sealing ring 26 and extends into the collar 25. The outer wall of the collar 25 is provided with a suction port 27. When it is necessary to remove the accumulated fluid in the trachea, the fluid is extracted by the cooperation of the suction tube 22 and the suction port 27.

[0034] The "monitoring components" and "suction structure" can be produced and assembled independently, reducing production and quality inspection costs.

[0035] Reference Figure 6 and Figure 7To ensure the inhalation port 27 remains in the optimal position during fluid extraction, multiple counterweights 28 are fixed to the inner wall of the collar 25, with each counterweight 28 corresponding to the inhalation port 27. When the patient is in a bed-lying position, the collar 25 rotates under the weight of the counterweights 28, always keeping the inhalation port 27 at the bottom of the collar 25. This allows for maximum extraction of fluid from the trachea when used with the inhalation tube 22, minimizing discomfort for the patient.

[0036] In actual use, after the cuff 13 inflates inside the patient's trachea, nearby fluid may accumulate. At this time, the suction device is activated, and the fluid is extracted through the cooperation of the suction tube 22 and the suction port 27. Because the collar 25 keeps the suction port 27 downward under the action of the counterweight 28, effective extraction of fluid can be ensured even if the patient's position changes.

[0037] Reference Figure 5 and Figure 9 The outer wall of the conduit 19 is fitted with a limiting ring 29, and the outer wall of the limiting ring 29 is provided with limiting groove I 30 and limiting groove II 31. Limiting groove I 30 is used to restrain the air injection hose 1, and limiting groove II 31 is used to restrain the suction tube 22. This design facilitates the storage of the air injection hose 1 and the suction tube 22, preventing them from being placed haphazardly.

[0038] Reference Figure 5 and Figure 9 A rubber sleeve 41 is fixed to the inner wall of the limiting ring 29, and the rubber sleeve 41 is fitted onto the outer wall of the catheter 19. The rubber sleeve 41 increases the friction between the limiting ring 29 and the catheter 19, allowing the limiting ring 29 to be stably placed at any position on the catheter 19. Medical personnel can move the limiting ring 29 to a suitable position as needed to fix and organize the inflator tubing 1 and the suction tubing 22, improving the ease of use and neatness of the catheter 19 system.

[0039] Among them, the temperature sensor 34, humidity sensor 35, pH sensor probe 16 and air pressure sensor 11 are connected to an external computer via wireless connection, which makes it convenient for medical staff to monitor the patient's condition in real time.

[0040] In actual use, after the airbag 13 inflates in the patient's trachea, nearby fluid may accumulate. Once the pH sensor probe 16 detects an abnormal change in the pH of the surrounding environment (indicating gastric reflux or secretion accumulation), it immediately issues an alarm signal. The system is set with an alarm threshold of pH less than 4.0 (indicating highly acidic gastric juice) or greater than 7.5 (indicating infectious alkaline secretions), triggering automatic aspiration or an audible and visual alarm.

[0041] In another embodiment: Refer to Figure 5 ,Figure 10 and Figure 11 The end of the catheter 19 furthest from the three-way stop 2 is provided with a hemispherical tip 32. The design of the hemispherical tip 32 avoids damage to the inner wall of the trachea when the catheter 19 is inserted into the patient's trachea. An insertion ring 36 is fixed to one side of the hemispherical tip 32, extending into the catheter 19. The inner wall of the catheter 19 has multiple slots 38, and the outer wall of the insertion ring 36 is fixed with multiple rubber rings 37. The slots 38 and the rubber rings 37 engage to securely mount the hemispherical tip 32 to one end of the catheter 19. This engagement method ensures a secure connection between the hemispherical tip 32 and the catheter 19 while facilitating the installation and removal of the hemispherical tip 32.

[0042] Reference Figure 10 and Figure 11 The hemispherical head 32 has a ventilation hole 33 that communicates with the tubing 19. A temperature sensor 34 and a humidity sensor 35 are respectively fixedly embedded in the top and bottom inner walls of the ventilation hole 33. When oxygen is injected into the patient's trachea, the temperature sensor 34 and humidity sensor 35 can detect the temperature and humidity of the injected oxygen in real time. By monitoring these parameters, medical staff can adjust the temperature and humidity of the oxygen to meet the patient's physiological needs, improving the safety and comfort of airway management.

[0043] The end of the vent 33 away from the duct 19 has a rounded chamfer 39. The design of the rounded chamfer 39 makes the gas flow more smoothly through the vent 33, reduces airflow resistance, and also helps to reduce irritation to the inner wall of the trachea.

[0044] The procedure for using a medical endotracheal tube includes the following steps: S1. The connector 5 is fixed to one end of the three-way tube 2 by the cooperation of the internal thread 7 and the external thread 12. The insertion ring 36 is inserted into the end of the catheter 19 away from the three-way tube 2. The hemispherical head 32 can be fixed to one end of the catheter 19 by the snap-fit ​​cooperation of the rubber ring 37 and the slot 38. Therefore, when the catheter 19 is inserted into the patient's trachea, it can avoid the catheter 19 from damaging the inner wall of the trachea. S2. Gas is injected into the cuff 13 through the air pump via the air injection tube 3, the three-way tube 2, and the air injection hose 1. The cuff 13 inflates and abuts against the patient's trachea. When the ventilator is in operation, gas will not leak out of the trachea, oral secretions will not fall into the trachea, and the contents of the stomach and esophagus on the posterior wall will not flow back into the trachea. The air pressure sensor 11 can detect the air pressure of the cuff 13 in real time and detect whether the cuff 13 is leaking. Otherwise, if the air cuff 13 cannot be detected in time, oral secretions and stomach contents may fall into the trachea, causing repeated lung infections. S3. The pH sensor probe 16 installed on one side of the airbag 13 can detect the fluid accumulation near the airbag 13. When fluid accumulation occurs, the fluid is drawn out through the inhalation tube 22. In addition, when the patient is in a bed-lying state, the collar 25 rotates under the action of the counterweight 28, always keeping the inhalation port 27 at the bottom of the collar 25. When combined with the inhalation tube 22, it can draw out the fluid to the greatest extent and avoid causing discomfort to the patient. S4. When oxygen is injected into the patient's trachea through the catheter 19, the temperature sensor 34 and humidity sensor 35 can detect the temperature and humidity of the oxygen, so that medical staff can adjust the temperature and humidity of the oxygen and the oxygen can be absorbed by the patient at the optimal temperature and humidity. S5. When the temperature sensor 34, humidity sensor 35, pH sensor probe 16, and pressure sensor 11 are damaged or need cleaning, the stop bar 17 can be moved to release the seal on the pH sensor probe 16 and remove it. Similarly, the connector 5 can be disconnected from the three-way pipe 2 to remove the pressure sensor 11. By removing the insertion ring 36 from one end of the conduit 19, the temperature sensor 34, humidity sensor 35, pH sensor probe 16, and pressure sensor 11 can be cleaned or replaced. The operation is simple. During the cleaning process, medical alcohol swabs can be used to wipe the surface of the sensor probe. Strongly corrosive cleaning agents are strictly prohibited. After cleaning, recalibration is required before reuse.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the temperature sensor 34, humidity sensor 35, pH sensor probe 16 and air pressure sensor 11 are all conventional methods or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0046] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dual-parameter real-time monitoring component for airbag pressure and pH value, characterized in that, include: The first end of the air injection hose (1) is connected to the air bag (13), and the second end is connected to the three-way tube (2). The other two ports of the three-way pipe (2) are connected to the gas injection pipe (3) and the connector (5), respectively. The gas injection pipe (3) is equipped with a check valve (4) to prevent gas backflow; A pressure sensor (11) is installed on the connector (5). The probe of the pressure sensor (11) extends into the three-way tube (2) to detect the pressure inside the airbag (13) in real time. pH sensor probe (16) is installed in mounting base (15) on one side of airbag (13) and is used to detect the pH value of the fluid accumulation near the airbag (13) after the airbag (13) is inflated in the patient's trachea. The airbag (13) is provided with a fixing structure for detachably fixing the pH sensor probe (16) inside the mounting base (15).

2. The real-time monitoring component for both airbag pressure and pH value according to claim 1, characterized in that, The connector (5) includes a fixing tube (9) and a connecting sleeve (6) sleeved on its outside; One end of the fixed tube (9) extends into the tee tube (2), and the connecting sleeve (6) is connected to the port of the tee tube (2) by a thread; The probe of the pressure sensor (11) passes through the fixed tube (9) and extends into the three-way tube (2).

3. The real-time monitoring component for both airbag pressure and pH value according to claim 2, characterized in that, The fixing structure includes a stop bar (17) and a pair of circular buckles (18); The baffle (17) is fixed to one side of the airbag (13), and the pair of circular buckles (18) are set between the baffle (17) and the airbag (13) to jointly hold the pH sensor probe (16) and realize its positioning and fixation.

4. The real-time monitoring component for both airbag pressure and pH value according to claim 3, characterized in that, The fixed tube (9) is provided with a sealing ring I (8) at one end of the tube (2) and the outer wall of the sealing ring I (8) abuts against the inner wall of the port of the tube (2). The inner wall of the connecting sleeve (6) is fitted with a sealing ring II (10), which abuts against the outer wall of the tee pipe (2).

5. A medical endotracheal tube, comprising the real-time monitoring component for both cuff pressure and pH value as described in claim 4, characterized in that, Also includes: The conduit (19) is fixedly sleeved on the outer wall of the conduit (19); The suction structure is set on the catheter (19) and is used to extract the accumulated fluid according to the detection result of the pH sensor probe (16) after the air bag (13) is inflated in the trachea; The suction structure includes a suction tube (22) and a collar (25).

6. The medical endotracheal tube according to claim 5, characterized in that, The suction structure also includes an annular groove I (23) disposed on the outer wall of the conduit (19), and the collar (25) is rotatably connected in the annular groove I (23) via a guide rail (24). The collar (25) has an annular groove II (40) on the side away from the airbag (13), and a sealing ring (26) fixed in the annular groove I (23) is slidably connected in the annular groove II (40). One end of the inhalation tube (22) passes through the sealing ring (26) and extends into the collar (25); The outer wall of the collar (25) is provided with an inlet (27), and the inner wall is fixed with a counterweight (28) corresponding to the position of the inlet (27). The counterweight (28) causes the collar (25) to rotate under the action of gravity, keeping the suction port (27) at the lowest point so as to facilitate the extraction of accumulated liquid.

7. The medical endotracheal tube according to claim 6, characterized in that, The outer wall of the conduit (19) is provided with an installation gap (20) and an installation hole (21); The air injection hose (1) is snapped into the installation gap (20), and the suction pipe (22) is disposed in the installation hole (21); The air injection hose (1) and the suction pipe (22) are respectively limited by the installation gap (20) and the installation hole (21).

8. The medical endotracheal tube according to claim 7, characterized in that, The outer wall of the conduit (19) is fitted with a limiting ring (29); The outer wall of the limiting ring (29) is provided with limiting groove I (30) and limiting groove II (31). The limiting groove I (30) is used to bind the air injection hose (1), and the limiting groove II (31) is used to bind the suction tube (22). A rubber sleeve (41) is fixed to the inner wall of the limiting ring (29). The rubber sleeve (41) is fitted onto the outer wall of the conduit (19) to increase friction.

9. The medical endotracheal tube according to claim 8, characterized in that, The end of the catheter (19) is provided with a hemispherical head (32). The hemispherical head (32) is fixed by engaging with the groove (38) on the inner wall of the end of the conduit (19) through a rubber ring (37) on the outer wall of the insertion ring (36) on one side; The hemispherical head (32) has a ventilation hole (33) that communicates with the conduit (19). The ventilation hole (33) is equipped with a temperature sensor (34) and a humidity sensor (35) for detecting the temperature and humidity of the oxygen introduced.

10. The medical endotracheal tube according to claim 9, characterized in that, The end of the ventilation hole (33) is provided with a rounded chamfer (39).

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