A visual silicone double-lumen endobronchial tube

Abstract

The present application belongs to the technical field of medical instruments, and discloses a visual silicone double-lumen endobronchial tube, comprising: a main trachea, one side of the main trachea is connected to a ventilator plug, and the other side is connected to a bronchus through a main tracheal cuff, and a bronchial cuff is arranged on the bronchus; a first inflation hole is arranged on the side where the main tracheal cuff is connected to the main trachea, a second inflation hole is arranged on the side of the bronchial cuff close to the main tracheal cuff, and an inflation structure is arranged at the first inflation hole and the second inflation hole, and the inflation structure comprises an inflation joint, an inflation tube and a gas storage cavity, and the inflation joint is connected to the gas storage cavity through the inflation tube, and the gas storage cavity is sealed and clamped with the first inflation hole or the second inflation hole; an air outlet is arranged at the gas storage cavity toward the inflation hole, and an inflation locking structure is arranged at the air outlet, and the inflation locking structure cooperates with the inflation hole to inflate and lock the main tracheal cuff or the bronchial cuff. The present application can improve the safety of endobronchial tube use.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a visual silicone double-lumen endobronchial tube. Background Art

[0002] The visible silicon double-lumen endobronchial tube is suitable for insertion into the patient's bronchi to create a temporary artificial breathing channel for patients who cannot breathe independently. The visible silicon double-lumen endobronchial tube is usually designed for single use, but in actual operation, the existing endobronchial tube lacks an effective mechanism to ensure that the tube is only used once. Therefore, it is possible that the same tube is reused due to human factors, thereby reducing the safety of the tube's use, which may lead to an increased risk of cross infection. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the purpose of the present application is to provide a visible silicone double-lumen endobronchial tube. The present application aims to solve the problem that the existing endobronchial tubes are not safe to use.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] A visible silicone double-lumen endobronchial cannula, the endobronchial cannula comprising: a main trachea, one side of the main trachea is connected to a ventilator plug, the other side of the main trachea is connected to a bronchus via a main tracheal cuff, and the bronchus is provided with a bronchial cuff; wherein, a first inflation hole is provided on the side of the main tracheal cuff connected to the main trachea, a first inflation structure is provided at the first inflation hole, a second inflation hole is provided on the side of the bronchial cuff close to the main tracheal cuff, a second inflation structure is provided at the second inflation hole, the first inflation structure and the second inflation structure have the same structure, and both include an inflation joint, an inflation joint, and an inflation joint. The air storage chamber comprises a tube and a gas storage chamber, the inflation connector is connected to the gas storage chamber via the inflation tube, and the gas storage chamber is sealed and clamped with the inflation hole at the corresponding position, and the inflation hole is the first inflation hole or the second inflation hole; the gas storage chamber is provided with an outlet facing the corresponding inflation hole, and an inflation locking structure is provided at the outlet, and the inflation locking structure cooperates with the corresponding inflation hole, and the inflation locking structure performs one-time inflating of the main tracheal cuff and the bronchial cuff based on the inflation connector and through the corresponding inflation hole, and inflates and locks the main tracheal cuff and the bronchial cuff after the one-time inflation is completed.

[0006] Optionally, card slots are respectively provided on both sides of the gas outlet of the gas storage cavity, and the inflation locking structure includes a structural body, and the structural body is respectively provided with first card blocks on both sides of one end of the gas outlet, and the first card blocks match the card slots.

[0007] Optionally, ventilation pipes are respectively provided on both sides of the structural body, and the ventilation pipes extend from the air outlet toward the corresponding inflation hole. The ventilation pipes are provided with air outlet holes near the corresponding inflation holes, and the air outlet holes match the corresponding inflation holes.

[0008] Optionally, receiving grooves are respectively arranged on both sides of the structural body close to one end corresponding to the inflation hole, a pressure spring is arranged in the receiving groove, a second clamping block is arranged outside the receiving groove, and the second clamping block is fixedly connected to the pressure spring.

[0009] Optionally, the thickness of the second card block at an end facing away from the accommodating slot is smaller than the thickness of the second card block at an end facing the accommodating slot.

[0010] Optionally, a blocking ring is provided at one end of the inflation connector away from the inflation tube, and a connecting groove is provided on the inner side of the inflation connector. The blocking ring is connected to a sealing blocking ring through the connecting groove, and the diameter of the blocking ring is larger than the diameter of the sealing blocking ring.

[0011] Optionally, a limit block is provided in the middle of the inner side of the inflation joint, a guide rod is provided on the side of the limit block close to the sealing retaining ring, the guide rod extends to the sealing retaining ring and is fixed to the sealing retaining ring, and a return spring is sleeved on the guide rod.

[0012] Optionally, a guide cylinder is provided on a side of the sealing retaining ring close to the blocking ring, the guide cylinder is fixedly connected to the sealing retaining ring via a connecting column, and a plug hole is provided in the middle of the guide cylinder.

[0013] Optionally, a monitoring device is provided in the main trachea for recording the usage time of the cannula, and the monitoring device includes: a microprocessor, a memory, a pressure sensor, a solenoid valve and an electronic lock, wherein the memory is connected to the microprocessor through an I / O interface; the pressure sensor is connected to the microprocessor through an ADC interface; the solenoid valve is connected to the microprocessor through a first GPIO interface; and the electronic lock is connected to the microprocessor through a second GPIO interface.

[0014] Optionally, the monitoring device further includes: a buzzer and an LED indicator light, wherein the buzzer is connected to the microprocessor via a third GPIO interface; and the LED indicator light is connected to the microprocessor via a fourth GPIO interface.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This application sets an inflation lock structure at the air outlet to ensure that once the tracheal cuff is deflated and the ventilation tube is locked in the gas storage chamber, it cannot be inflated again, which can effectively avoid the re-inflation of the tracheal cuff due to misoperation, thereby reducing potential risks to the patient. This application sets an inflation lock structure to limit the ability of the tracheal cuff to be inflated again, ensuring that the patient will not suffer additional damage due to accidental re-inflation of the tracheal cuff after extubation, thereby improving the safety of the intubation process;

[0017] 2. The bronchial tube described in this application is made of silicone material, which can reduce the harm to the patient's body;

[0018] 3. The endobronchial tube described in this application has a temperature measurement function, which helps medical staff to promptly detect abnormal temperature changes in the patient's airway, such as overheating or overcooling, so as to take prompt measures to avoid potential harm;

[0019] 4. The endobronchial tube described in the present application also has a medication adding function, which can not only improve the pertinence and efficiency of treatment, but also reduce the side effects that may be caused by systemic medication. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of a visual silicone double-lumen endobronchial tube provided by an embodiment of the present application;

[0021] Figure 2 is a cross-sectional schematic diagram of a visual silicone double-lumen endobronchial tube provided in another embodiment of the present application;

[0022] Figure 3 is a schematic plan view of a gas storage chamber and an inflation locking structure provided by another embodiment of the present application;

[0023] Figure 4 is a schematic structural diagram of an inflatable structure provided by another embodiment of the present application;

[0024] Figure 5 is a schematic diagram of a three-dimensional structure of an inflation joint provided in another embodiment of the present application;

[0025] Figure 6 is a schematic diagram of the planar structure of an inflation joint provided by another embodiment of the present application;

[0026] Figure 7 is a front view of a planar structure of an improved endobronchial tube provided by another embodiment of the present application;

[0027] Figure 8 is a side view of the planar structure of an improved endobronchial tube provided by another embodiment of the present application;

[0028] Fig. 9 It is a schematic diagram of the structure of a monitoring device provided in another embodiment of the present application.

[0029] The following are the descriptions of the reference numerals:

[0030] 1. Main air pipe; 2. Ventilator plug; 3. Main air pipe cuff; 4. Bronchus; 5. Bronchial cuff; 6. Inflatable joint; 7. Inflatable tube; 8. Gas storage chamber; 9. Ventilation tube; 10. First clamping block; 11. Slot; 12. Air outlet; 13. Second clamping block; 14. Pressing spring; 15. Video interface; 16. Blocking ring; 17. Limiting block; 18. Guide rod; 19. Reset spring; 20. Sealing ring; 21. Guide cylinder ; 22. Socket; 23. Connecting column; 24. Connecting groove; 25. Flushing connector; 26. Flushing tube; 27. Visual cover; 28. Microprocessor; 29. ​​Pressure sensor; 30. Memory; 31. Solenoid valve; 32. Electronic lock; 33. Buzzer; 34. LED indicator light; 35. Syringe; 36. Conical connector; 37. External tube; 38. Connecting tube; 39. Standard connector; 40. Conical sleeve; 41. Suction catheter for respiratory tract. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) 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.

[0033] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. 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 a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0035] like Figure 1 and Figure 2 As shown, an exemplary embodiment of the present application provides a visual silicone double-lumen endobronchial cannula, the endobronchial cannula comprising: a main trachea 1, one side of the main trachea 1 is connected to a ventilator plug 2, the other side of the main trachea 1 is connected to a bronchus 4 through a main tracheal cuff 3, and a bronchial cuff 5 is arranged on the bronchus 4; wherein, a first inflation hole is arranged on the side of the main tracheal cuff 3 connected to the main trachea 1, a first inflation structure is arranged at the first inflation hole, a second inflation hole is arranged on the side of the bronchial cuff 5 close to the main tracheal cuff 3, a second inflation structure is arranged at the second inflation hole, and the first inflation structure and the second inflation structure are connected to each other. The structures of the gas structures are the same, and both include an inflation connector 6, an inflation tube 7 and a gas storage chamber 8. The inflation connector 6 is connected to the gas storage chamber 8 through the inflation tube 7, and the gas storage chamber 8 is sealed and clamped with the corresponding inflation hole. The gas storage chamber 8 is provided with an outlet facing the corresponding inflation hole, and an inflation locking structure is provided at the outlet, and the inflation locking structure cooperates with the corresponding inflation hole. The inflation locking structure is based on the inflation connector 6 and inflates the main tracheal cuff 3 and the bronchial cuff 5 once through the corresponding inflation hole, and inflates and locks the main tracheal cuff 3 and the bronchial cuff 5 after the one-time inflation is completed.

[0036] In this embodiment, the present application designs a bronchial cannula with an inflation locking structure, which can ensure that the main bronchial cuff 3 and the bronchial cuff 5 can only be inflated once and automatically locked after the inflation is completed, thereby effectively preventing the bronchial cannula from being reused. Compared with the existing bronchial cannula, the present application improves the safety of the bronchial cannula and can reduce the risk of cross infection caused by the repeated use of the bronchial cannula due to human factors.

[0037] In this embodiment, with respect to the first inflation hole, the inflation hole corresponding to the gas storage cavity 8 in the first inflation structure is the first inflation hole; with respect to the second inflation hole, the inflation hole corresponding to the gas storage cavity 8 in the second inflation structure is the second inflation hole.

[0038] It should be noted that the main trachea 1 and bronchus 4 in the present application are both made of silicone material. Since silicone material has high flexibility and elasticity, the bronchial tube can better adapt to the shape changes of the airway when inserted into the patient's airway, reduce damage to the airway wall, and bend with the patient's breathing movement, thereby improving the patient's comfort.

[0039] Figure 3 is a schematic plan view of the gas storage chamber 8 and the inflation locking structure (the planar structure is Figure 2 The spherical gas storage chamber 8 shown in FIG. 8 is obtained by sectioning the main trachea 1 to the bronchus 4). Figure 3 As shown, the gas storage chamber 8 is provided with a card slot 11 on both sides of the gas outlet, and the inflation locking structure includes a structural body, and the structural body is provided with a first card block 10 on both sides of one end of the gas outlet, and the first card block 10 matches the card slot 11. In addition, the structural body is provided with a vent pipe 9 on both sides, and the vent pipe 9 extends from the gas outlet to the direction of the corresponding inflation hole, and the vent pipe 9 is provided with an outlet hole 12 near the corresponding inflation hole, and the outlet hole 12 matches the corresponding inflation hole.

[0040] Below, the present application describes in detail the working principle of the inflation locking structure by taking the main tracheal cuff 3 as an example. The gas storage chamber 8 is made of plastic, which can be used to store gas and serve as an intermediate station for inflating the main tracheal cuff 3. The inflation connector 6 is externally connected to an inflation device (such as a syringe), and the inflation device inflates the interior of the gas storage chamber 8 through the inflation connector 6. When the gas pressure in the gas storage chamber 8 exceeds a preset value, the ventilation tube 9 can be pushed from the inside of the gas storage chamber 8 toward the main tracheal cuff 3. When the air outlet 12 on the ventilation tube 9 enters the main tracheal cuff 3, the gas stored in the gas storage chamber 8 can enter the interior of the main tracheal cuff 3 through the air outlet 12, causing the main tracheal cuff 3 to expand, thereby achieving airway closure, and then blocking the heart, lungs and trachea. During this process, the first clamping block 10 is engaged with the clamping slot 11 to ensure that the venting tube 9 can be firmly defined at the outlet of the gas storage chamber 8, thereby ensuring that the venting tube 9 remains stable during the inflation of the main tracheal cuff 3, and preventing the risk of accidental displacement of the venting tube and airway leakage. When it is necessary to remove the tube, the needle tube is connected to the inflation connector 6 to extract the gas, and the air in the main tracheal cuff 3 will flow back to the inside of the gas storage chamber 8 through the air outlet 12 and the venting tube 9. When the air in the main tracheal cuff 3 is completely extracted, the main tracheal cuff 3 will shrink. During the shrinkage of the main tracheal cuff 3, the venting tube 9 moves into the gas storage chamber 8. During the movement of the venting tube 9, the first clamping block 10 will be detached from the clamping slot 11 due to extrusion deformation. When the first clamping block 10 is completely detached from the clamping slot 11, the venting tube 9 can completely enter the gas storage chamber 8.

[0041] Based on the above embodiments, in another exemplary embodiment, receiving grooves are respectively arranged on both sides of the structural body close to one end of the corresponding inflation hole, a pressure spring 14 is arranged in the receiving groove, and a second clamping block 13 is arranged outside the receiving groove, and the second clamping block 13 is fixedly connected to the pressure spring 14.

[0042] In this embodiment, during the movement of the ventilation pipe 9 into the gas storage chamber 8, the second clamping block 13 comes into contact with the inner wall of the gas outlet of the gas storage chamber 8. Under the squeezing action of the inner wall of the gas outlet, the second clamping block 13 is pushed into the receiving groove. When the second clamping block 13 moves to a position corresponding to the clamping groove 11, under the action of the top pressure spring 14, the second clamping block 13 is pushed out of the receiving groove and engages with the clamping groove 11. When the second clamping block 13 is engaged with the clamping slot 11, the second clamping block 13 and the clamping slot 11 will form a stable mechanical locking state, so that the second clamping block 13 is difficult to be squeezed out of the clamping slot 11 in the engaged state. At this time, even if external force is applied, the ventilation tube 9 is difficult to slide out of the gas storage chamber 8 again due to the close fit between the second clamping block 13 and the clamping slot 11, thereby ensuring that the gas stored in the gas storage chamber 8 cannot enter the interior of the main tracheal cuff 3 through the ventilation tube 9 again, thereby preventing the main tracheal cuff 3 from being inflated again (when the main tracheal cuff 3 has been deflated and is ready to be removed, if it is inflated again, it will cause unnecessary pressure on the patient's airway, which will cause airway damage or bleeding on the one hand; on the other hand, it will cause secretions or other substances to be inhaled into the lungs, increasing the risk of aspiration).

[0043] It should be noted that, in the above embodiment, the thickness of the end of the second clamping block 13 facing away from the receiving slot is smaller than the thickness of the end of the second clamping block 13 facing the receiving slot.

[0044] When the vent pipe 9 moves into the gas storage chamber 8, since the end of the second card block 13 facing away from the receiving groove is thinner, the second card block 13 is more easily deformed when being squeezed into the receiving groove and can smoothly pass through the card slot 11. In addition, since the end of the second card block 13 facing the receiving groove is thicker, it is difficult for the second card block 13 to be squeezed out of the card slot 11 in the engaged state.

[0045] The asymmetric thickness design of the second clamping block 13 at both ends ensures that when the vent pipe 9 attempts to slide out of the gas storage chamber 8 again due to external force, the second clamping block 13 can also be firmly retained in the clamping groove 11, thereby ensuring that the vent pipe 9 cannot slide out again.

[0046] In summary, the engagement mechanism of the second card block 13 and the card slot 11 achieves locking of the ventilating tube 9 by means of mechanical locking, ensuring that the main tracheal cuff 3 can only be inflated once, thereby improving the safety of intubation. The thinner design of the end of the second card block 13 facing away from the receiving slot ensures that the locking structure can smoothly enter and exit the card slot 11 at the appropriate time, and at the same time ensures that once engaged, it is sufficiently firm to prevent the ventilating tube 9 from slipping out again, thereby further improving the reliability and safety of the ventilating tube locking.

[0047] It should be noted that the principle and function of the inflation locking structure acting on the bronchial cuff 5 are consistent with the principle of the main tracheal cuff 3, and will not be repeated here.

[0048] In another exemplary embodiment, Figure 4 , Figure 5 and Figure 6 As shown, a blocking ring 16 is provided at one end of the inflation connector 6 away from the inflation tube 7, and a connecting groove 24 is provided on the inner side of the inflation connector 6. The blocking ring 16 is connected to a sealing blocking ring 20 through the connecting groove 24, and the diameter of the blocking ring 16 is larger than the diameter of the sealing blocking ring 20.

[0049] In this embodiment, since the diameter of the blocking ring 16 is greater than the diameter of the sealing blocking ring 20, when the sealing blocking ring 20 is engaged with the connecting groove 24, the opening of the inflation connector 6 can be effectively blocked, thereby preventing the gas inside the gas storage chamber 8 from being discharged from the inflation connector 6 through the inflation tube 7. In addition, a limit block 17 is provided in the middle of the inner side of the inflation connector 6, and a guide rod 18 is provided on the side of the limit block 17 close to the sealing blocking ring 20, and the guide rod 18 extends to the sealing blocking ring 20 and is fixed to the sealing blocking ring 20, and a return spring 19 is sleeved on the guide rod 18.

[0050] Furthermore, a guide cylinder 21 is provided on one side of the sealing retaining ring 20 close to the blocking ring 16 , and the guide cylinder 21 is fixedly connected to the sealing retaining ring 20 via a connecting column 23 . A plug hole 22 is provided in the middle of the guide cylinder 21 .

[0051] In this embodiment, a sealing layer is provided in the socket 22. When inflation is required, the outer wall of the syringe 35 is inserted into the socket 22, and a sealing state is formed between the socket 22 and the syringe 35. The syringe 35 is pushed to insert the needle tip into the socket 22. As the syringe 35 is pushed forward, one end of the syringe 35 fits against the guide cylinder 21 (the guide cylinder 21 helps to maintain the precise distance between the sealing baffle ring 20 and the blocking ring 16, thereby ensuring that the sealing baffle ring 20 can be blocked or released at the correct position), and the sealing baffle ring 20 is pushed to slide smoothly along a predetermined path under the guidance of the guide rod 18 (the guide rod 18 can prevent the sealing baffle ring 20 from deflecting or shaking during the sliding process, and ensure that the sealing baffle ring 20 remains in a straight line during the movement, so that the sealing baffle ring 20 can be accurately pushed and pulled) until the sealing baffle ring 20 is pushed to separate from the blocking ring 16. At this time, air can be injected into the gas storage chamber 8 through the syringe 35. When deflation is required, the sealing retaining ring 20 will return to its original position along the guide rod 18 under the action of the return spring 19, thereby blocking the opening of the inflation connector 6 and preventing the gas in the gas storage chamber 8 from being discharged again. It should be noted that the sealing retaining ring 20 can only be moved under specific conditions. Once the inflation and deflation actions are completed, the sealing retaining ring 20 will be locked in the initial position by the blocking ring 16 and cannot be moved again. Once the sealing retaining ring 20 is locked, it cannot be pushed again, so the inflation process cannot be repeated, thereby ensuring the one-time use of the bronchial tube, thereby avoiding the risk of cross infection caused by repeated use of the bronchial tube.

[0052] Please refer to Figure 1 and Figure 2 In another exemplary embodiment, the main air pipe 1 is also connected to a flushing pipe 26, one end of the flushing pipe 26 close to the main air pipe 1 extends inside the main air pipe 1 into the visible cover 27, and the other end of the flushing pipe 26 away from the main air pipe 1 is provided with a flushing connector 25.

[0053] In this embodiment, the flushing connector 25 is connected to a flushing device (for example, a syringe). If the lens is found to be blurred, air or flushing liquid (for example, saline solution) can be injected into the flushing tube through the flushing connector 25 by the flushing device. At this time, the camera disposed in the visual cover 27 can be flushed to remove stains on the surface of the camera.

[0054] Please continue to refer to Figure 1 and Figure 2 In another exemplary embodiment, the camera is connected to a video interface 15 via a connecting line disposed in the main air pipe 1, and the video interface 15 is externally connected to a display device.

[0055] In this embodiment, by setting a camera in the main trachea 1 and connecting it to an external display device, real-time visual monitoring of the intubation position and the surgical area can be achieved. This design can significantly improve the accuracy of surgical operations and reduce operational errors caused by limited vision, thereby improving the success rate of surgery and the safety of patients.

[0056] Specifically, the video signal collected by the camera will be transmitted to the video interface 15 through the connecting line set in the main trachea 1, and then can be connected to the external display device. In this way, the doctor can observe the situation in the surgical area in real time on the external display device, especially when confirming and adjusting the intubation position, the degree of visualization is greatly enhanced. This not only helps to place the bronchial intubation more accurately, but also helps the doctor better control the entire process during the operation, reducing the potential risks of additional bed or infection caused by the use of bronchoscope.

[0057] In summary, this application integrates camera and visualization technology. The design of this visual silicone double-lumen endobronchial tube greatly improves the operation process that traditional methods require reliance on fiberoptic bronchoscopes to complete. It not only simplifies the operation steps, but also improves the safety and convenience in clinical applications.

[0058] Based on the above embodiments, the present application improves the structure of the bronchial tube. Figure 7 This is a front view of the planar structure of the improved endobronchial tube. Figure 8 This is a side view of the planar structure of the improved endobronchial tube, such as Figure 7 and Figure 8 As shown, this application will Figure 1 and Figure 2 The ventilator plug 2 shown in the figure has been replaced, and a conical joint 36 made of silicone material has been added at the connection between the main air pipe 1 and the ventilator plug 2, one side of the conical joint 36 is set as a single interface, and the conical joint 36 is connected to the main air pipe 1 through the single interface, and the other side of the conical joint 36 is set as a double interface, and the conical joint 36 is connected to the external pipe 37 through the double interface, and a connecting pipe 38 is also provided on the side of the external pipe 37 away from the conical joint 36, and the external pipe 37 and the connecting pipe 38 are connected by a 15 cm standard joint 39 and a conical sleeve 40, and the connecting pipe 38 is connected to a suction catheter 41 for the respiratory tract on the side away from the external pipe 37.

[0059] In the above improvement, the conical connector 36 made of silicone material can better adapt to the connection between the main trachea 1 and the external tube 37 due to its softness, reducing the risk of loosening or falling off caused by rigid connection, and can also reduce irritation to the patient's respiratory tract and improve the patient's comfort. In addition, the dual-interface design allows for more functional expansion, such as connecting a suction catheter, which can clear respiratory secretions without affecting respiratory support, reducing the risk of respiratory obstruction in patients.

[0060] In summary, through the above improvements, not only the functionality of the endobronchial tube is improved, but also its safety during use and the comfort of the patient are increased, providing a better solution for clinical application.

[0061] On the basis of the above embodiments, the present application can further improve the bronchial intubation, that is, the temperature measurement function is realized by building in or attaching a temperature sensor on the main tracheal cuff and the bronchial cuff, and the temperature sensor can detect the temperature around the cuff in real time, and convert the temperature signal into an electrical signal and transmit it to the processing unit, and the processing unit then transmits these data to an external device such as a display by wireless or wired means for medical staff to view. Temperature information helps to monitor the temperature changes of the patient's airway and detect abnormal conditions in time (during ventilation, if the gas temperature is too high, it may damage the respiratory mucosa; conversely, if the temperature is too low, it may cause discomfort to the patient). In addition, a drug delivery tube can be added to the main trachea, and the drug delivery tube is connected to an external drug supply device (such as an injection pump). The drug can be delivered to the target area through the drug delivery tube at an appropriate dose and speed through the drug supply device. This method can not only improve the pertinence and efficiency of treatment, but also reduce the side effects that may be caused by systemic medication. This design is particularly useful for certain situations that require local administration, such as preventing or treating respiratory infections, reducing inflammatory responses, etc. It allows doctors to adjust dosing regimens more flexibly and provide personalized treatment based on the patient's actual situation, thereby improving the overall treatment effect.

[0062] In another exemplary embodiment, a monitoring device is provided in the main trachea 1 for recording the usage time of the endobronchial tube.

[0063] In this embodiment, Fig. 9As shown, the monitoring device includes: a microprocessor 28, a memory 30, a pressure sensor 29, a solenoid valve 31 and an electronic lock 32. The memory 30 is connected to the microprocessor 28 via an I / O interface; the pressure sensor 29 is connected to the microprocessor 28 via an ADC interface; the solenoid valve 31 is connected to the microprocessor 28 via a first GPIO (General-Purpose Input / Output) interface; and the electronic lock 32 is connected to the microprocessor 28 via a second GPIO interface.

[0064] The pressure sensor 29 is used to detect the inflation state of the main tracheal cuff 3. When the bronchial intubation tube is used for the first time, the pressure sensor 29 detects that the main tracheal cuff 3 is inflated and sends this signal to the microprocessor 28. The microprocessor 28 (for example, a STM32F103C8T6 chip can be used) is the central controller of the monitoring device, which is responsible for receiving pressure data from the pressure sensor 29 (for example, a pressure sensor of model MPX5700AP can be used) and processing these data to determine whether the bronchial intubation tube has been used. The memory 30 is used to store the number of times the bronchial intubation tube is used and other important data, and the integrity of the data can be maintained even in the case of power failure. It should be noted that the memory 30 is usually non-volatile, for example, an EEPROM (electrically erasable programmable read-only memory) or a flash memory is used. The solenoid valve 31 is located on the inflation pipeline and is used to control whether the gas can enter the main tracheal cuff 3. When the monitoring device detects that the endobronchial tube has been used, the microprocessor 28 will send a signal to the solenoid valve 31 to close the endobronchial tube to prevent gas from entering the main endobronchial cuff 3 again. The electronic lock 32 is linked with the pressure sensor 29 and the solenoid valve 31. When the monitoring device detects that the endobronchial tube has been used and someone tries to inflate it again, the microprocessor 28 will send a control signal to control the electronic lock 32 to permanently close the solenoid valve 31 to prevent gas from entering the main endobronchial cuff 3.

[0065] The specific implementation process of the monitoring device is as follows:

[0066] When the endobronchial tube is used for the first time, the pressure sensor 29 detects that the main tracheal cuff 3 is inflated;

[0067] After receiving the inflation signal fed back by the pressure sensor 29 , the microprocessor 28 starts the timer placed inside it to record the usage time of the endobronchial tube; when the endobronchial tube is used up, the timer stops timing and stores the accumulated usage time in the memory 30 .

[0068] If someone tries to inflate the used endobronchial tube again, the pressure sensor 29 will detect this behavior and send a monitoring signal to the microprocessor 28. After receiving the monitoring signal, the microprocessor 28 determines that the endobronchial tube has been used, and then sends a command to the solenoid valve 31 to close it to prevent gas from entering the main endobronchial cuff 3. At the same time, the microprocessor 28 activates the electronic lock 32 to permanently lock the solenoid valve 31 to ensure that it cannot be inflated again.

[0069] This embodiment can ensure that once the endobronchial tube has been used, the monitoring device will automatically lock the electromagnetic valve 31 to prevent the endobronchial tube from being used again, thereby reducing the risk of cross infection.

[0070] Based on the above embodiment, in another exemplary embodiment, the monitoring device also includes a buzzer 33 and an LED indicator light 34, wherein the buzzer 33 is connected to the microprocessor 28 via a third GPIO interface; and the LED indicator light 34 is connected to the microprocessor 28 via a fourth GPIO interface.

[0071] In this embodiment, when the monitoring device detects that the endobronchial tube is used incorrectly, for example, when attempting to inflate it again, the buzzer 33 will emit a warning sound to alert medical staff. Similar to the use of the buzzer 33, the LED indicator 34 is also used to issue a warning when the monitoring device detects that the endobronchial tube is used incorrectly, for example, a flashing red light indicates that the endobronchial tube has been used and cannot be inflated again. In this embodiment, the warning function of the buzzer 33 and the LED indicator 34 can improve the safety of the use of the endobronchial tube and reduce the safety risks caused by misoperation.

[0072] The above embodiments show and describe the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and these changes and improvements all fall within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. A visual silicone double-lumen endobronchial tube, characterized in that: The endobronchial tube comprises: A main trachea (1), one side of the main trachea (1) being connected to a ventilator plug (2), the other side of the main trachea (1) being connected to a bronchus (4) via a main trachea cuff (3), and a bronchus cuff (5) being provided on the bronchus (4); Wherein, a first inflation hole is arranged on the side of the main tracheal cuff (3) connected to the main trachea (1), and a first inflation structure is arranged at the first inflation hole; a second inflation hole is arranged on the side of the bronchial cuff (5) close to the main tracheal cuff (3), and a second inflation structure is arranged at the second inflation hole; the first inflation structure and the second inflation structure have the same structure, and both comprise an inflation joint (6), an inflation tube (7) and a gas storage cavity (8); the inflation joint (6) is connected to the gas storage cavity (8) via the inflation tube (7), and the gas storage cavity (8) is sealed and clamped with the inflation hole at the corresponding position; the inflation hole is the first inflation hole or the second inflation hole; The gas storage chamber (8) is provided with an outlet facing the corresponding inflation hole, and an inflation locking structure is provided at the outlet. The inflation locking structure cooperates with the corresponding inflation hole. The inflation locking structure is based on the inflation joint (6) and inflates the main tracheal cuff (3) and the bronchial cuff (5) once through the corresponding inflation hole, and inflates and locks the main tracheal cuff (3) and the bronchial cuff (5) after the one-time inflation is completed; The gas storage cavity (8) is provided with card slots (11) on both sides of the gas outlet, and the inflation locking structure comprises a structural body, and the structural body is provided with first card blocks (10) on both sides of one end of the gas outlet, and the first card blocks (10) match the card slots (11); A vent pipe (9) is provided on the structural body, the vent pipe (9) extends from the air outlet in the direction of the corresponding air filling hole, an air outlet hole (12) is provided on the side wall of the vent pipe (9), and the air outlet hole (12) cooperates with the corresponding air filling hole; The structural body is provided with receiving grooves on both sides of one end close to the corresponding inflation hole, the bottom of the structural body close to the receiving groove is in a closed state, a pressure spring (14) is provided in the receiving groove, a second clamping block (13) is provided outside the receiving groove, and the second clamping block (13) is fixedly connected to the pressure spring (14); The inflatable device inflates the interior of the gas storage chamber (8) through the inflatable joint (6). When the gas pressure in the gas storage chamber (8) exceeds a preset value, the ventilation tube (9) can be pushed from the interior of the gas storage chamber (8) toward the main tracheal cuff (3). When the air outlet (12) on the ventilation tube (9) enters the main tracheal cuff (3), the gas stored in the gas storage chamber (8) can enter the interior of the main tracheal cuff (3) through the air outlet (12), so that the main tracheal cuff (3) expands, thereby achieving airway closure, and further blocking the heart, lungs and trachea. In this process, the first clamping block (10) is engaged with the clamping groove (11), ensuring that the ventilation tube (9) can be firmly confined in the gas storage chamber (8). ) at the outlet of the main tracheal cuff (3), thereby ensuring that the ventilating tube (9) remains stable during the inflation of the main tracheal cuff (3), and preventing the risk of accidental displacement of the ventilating tube and resulting in airway leakage; when it is necessary to remove the tube, the needle tube is connected to the inflation connector (6) to extract the gas, and at this time, the air in the main tracheal cuff (3) will flow back to the inside of the gas storage chamber (8) through the air outlet (12) and the ventilating tube (9); when the air in the main tracheal cuff (3) is completely extracted, the main tracheal cuff (3) will shrink, and during the shrinkage of the main tracheal cuff (3), the ventilating tube (9) moves into the gas storage chamber (8), and during the movement of the ventilating tube (9), the first clamping block (10) will be separated from the clamping groove (11) due to extrusion deformation; During the movement of the vent pipe (9) into the gas storage chamber (8), the second clamping block (13) comes into contact with the inner wall of the gas outlet of the gas storage chamber (8). Under the squeezing action of the inner wall of the gas outlet, the second clamping block (13) is pushed into the receiving groove. When the second clamping block (13) moves to a position corresponding to the clamping groove (11), under the action of the pressing spring (14), the second clamping block (13) is pushed out of the receiving groove and engages with the clamping groove (11). When the second clamping block (13) engages with the clamping groove (11), the second clamping block (13) and the clamping groove (11) form a stable mechanical locking state, so that the second clamping block (13) is difficult to be squeezed out of the clamping groove (11) in the engaged state.

2. The endobronchial cannula according to claim 1, characterized in that: The thickness of the second clamping block (13) at an end facing away from the receiving groove is smaller than the thickness of the second clamping block (13) at an end facing the receiving groove.

3. The endobronchial cannula according to claim 1, characterized in that: A blocking ring (16) is provided at one end of the inflation joint (6) away from the inflation tube (7); a connecting groove (24) is provided on the inner side of the inflation joint (6); the blocking ring (16) is connected to a sealing blocking ring (20) via the connecting groove (24); and the diameter of the blocking ring (16) is greater than the diameter of the sealing blocking ring (20).

4. The endobronchial cannula according to claim 3, characterized in that: A limit block (17) is provided at the middle of the inner side of the inflation joint (6); a guide rod (18) is provided on a side of the limit block (17) close to the sealing retaining ring (20); the guide rod (18) extends to the sealing retaining ring (20) and is fixed to the sealing retaining ring (20); a return spring (19) is sleeved on the guide rod (18).

5. The endobronchial cannula according to claim 4, characterized in that: A guide cylinder (21) is provided on one side of the sealing retaining ring (20) close to the retaining ring (16); the guide cylinder (21) is fixedly connected to the sealing retaining ring (20) via a connecting column (23); and a plug hole (22) is provided in the middle of the guide cylinder (21).

6. The endobronchial cannula according to claim 1, characterized in that: A monitoring device is provided in the main trachea (1) for recording the usage time of the bronchial tube, and the monitoring device comprises: A microprocessor (28), a memory (30), a pressure sensor (29), a solenoid valve (31) and an electronic lock (32), wherein: The memory (30) is connected to the microprocessor (28) via an I / O interface; The pressure sensor (29) is connected to the microprocessor (28) via an ADC interface; The solenoid valve (31) is connected to the microprocessor (28) via a first GPIO interface; The electronic lock (32) is connected to the microprocessor (28) via a second GPIO interface.

7. The endobronchial cannula according to claim 6, characterized in that: The monitoring device also includes: Buzzer (33) and LED indicator (34), in, The buzzer (33) is connected to the microprocessor (28) via a third GPIO interface; The LED indicator light (34) is connected to the microprocessor (28) via a fourth GPIO interface.

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