Multifunctional anesthetic tracheal catheter

Abstract

The present application belongs to the technical field of medical devices, and discloses a multifunctional anesthetic tracheal catheter, which comprises a tracheal catheter body, a standard joint connected to the tracheal catheter body, an auxiliary breathing device connected to the standard joint, a sealing air bag connected to one end of the tracheal catheter body away from the standard joint, and an external air charging and discharging device connected to the sealing air bag through an air guide pipe; the tracheal catheter body is connected to a breathing resistance monitoring assembly and a sputum suction assembly on the side close to the standard joint, and the breathing resistance monitoring assembly monitors the breathing resistance by monitoring the gas pressure inside the tracheal catheter body. The present application uses the breathing resistance monitoring assembly to monitor the real-time resistance of breathing by monitoring the gas pressure inside the tracheal catheter body, realizes real-time monitoring of sputum scab or sputum plug of the tracheal catheter body, uses the sputum suction assembly to suck sputum, sputum scab or sputum plug in the patient's body or the tracheal catheter body, and ensures the conducting performance of the tracheal catheter body.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a multifunctional anesthetic endotracheal tube. Background Technology

[0002] Anesthesia endotracheal tube is a key device for establishing an artificial airway and ensuring patient ventilation during general anesthesia surgery and intensive care. Its core function is to establish a closed channel connecting external respiratory equipment to the patient's lungs to ensure oxygen supply and carbon dioxide removal.

[0003] During anesthesia maintenance and intensive care, patients often produce large amounts of sputum or secretions due to drug suppression, pre-existing respiratory diseases, or surgical stimulation. These substances accumulate within the endotracheal tube lumen, gradually forming thick sputum crusts or plugs, leading to a reduction in the effective inner diameter of the tube and a sharp increase in airway resistance. This directly triggers a series of clinical risks: First, to maintain the predetermined tidal volume, the ventilator must increase its driving pressure, potentially causing barotrauma; second, incomplete airway obstruction can lead to ventilation / perfusion mismatch, causing progressive hypoxemia and hypercapnia; third, severe obstruction can cause atelectasis of a lung lobe or even the entire lung, seriously threatening the patient's life. Therefore, timely and effective monitoring of sputum accumulation within the tube is a crucial aspect of perioperative airway safety management.

[0004] However, existing endotracheal tubes typically consist of a tube body, a distal cuff, and a proximal standard connector. The cuff, once inflated, seals the patient's trachea to prevent gas leakage and aspiration of oropharyngeal secretions. The standard connector connects to external respiratory equipment for assisted breathing. Their function is primarily limited to providing a "channel" and a "seal," failing to monitor the patency of the tube lumen itself. Faced with the common and highly risky clinical problem of sputum accumulation, existing endotracheal tubes exhibit significant functional gaps and monitoring lags. Summary of the Invention

[0005] This invention aims to provide a multifunctional anesthetic endotracheal tube that utilizes a respiratory resistance monitoring component to monitor the real-time gas pressure inside the endotracheal tube body to monitor respiratory resistance, thereby enabling real-time monitoring of sputum crusts or plugs within the endotracheal tube body to ensure the tube's patency. This solves the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multifunctional anesthetic endotracheal tube includes an endotracheal tube body, which is connected to a standard connector for connecting to an assisted breathing device. A sealing cuff is connected to the side of the endotracheal tube body away from the standard connector, and the sealing cuff is connected to an inflation / deflation device via an air tube. A respiratory resistance monitoring component is detachably connected to the side of the endotracheal tube body near the standard connector, and the respiratory resistance monitoring component monitors respiratory resistance by monitoring the gas pressure inside the endotracheal tube body.

[0008] Furthermore, the breathing resistance monitoring component includes an inspiratory resistance monitoring component, which includes an inspiratory resistance monitoring tube body that is connected to the endotracheal tube body. The inner side of the inspiratory resistance monitoring tube body is provided with a monitoring ball, and a through hole is opened on the side of the inspiratory resistance monitoring tube body away from the endotracheal tube body.

[0009] Furthermore, the breathing resistance monitoring component also includes an expiratory resistance monitoring component, which includes an expiratory resistance monitoring tube body that is connected to the endotracheal tube body. A monitoring piston is slidably and sealed to the inner side of the expiratory resistance monitoring tube body. The end of the monitoring piston away from the endotracheal tube body is connected to the expiratory resistance monitoring tube body by a spring. A through hole is provided on the side of the expiratory resistance monitoring tube body away from the endotracheal tube body.

[0010] Furthermore, both the inspiratory resistance monitoring tube and the expiratory resistance monitoring tube are detachably connected to the endotracheal tube body, and both are connected to a one-way gas valve. The one-way gas valve connected to the inspiratory resistance monitoring tube controls the gas to flow unidirectionally from the endotracheal tube body to the monitoring bulb, and the one-way gas valve connected to the expiratory resistance monitoring tube controls the gas to flow unidirectionally from the monitoring piston to the endotracheal tube body.

[0011] Furthermore, both the inspiratory resistance monitoring tube and the expiratory resistance monitoring tube are made of transparent material, and scale markings are provided on the outer walls of both tubes.

[0012] Furthermore, the through holes of the inspiratory resistance monitoring tube and the expiratory resistance monitoring tube are both arc-shaped holes, and the inspiratory resistance monitoring tube and the expiratory resistance monitoring tube are both rotatably connected to a resistance adjustment cover with an arc-shaped adjustment hole, and the size of the pressure relief hole is adjusted by adjusting the communication area between the arc-shaped adjustment hole and the through hole.

[0013] Furthermore, the endotracheal tube body is also connected to a suction assembly, which includes a suction branch connected to the endotracheal tube body. The suction branch is connected to a sputum collection bottle, which is connected to a negative pressure device via a negative pressure conduit.

[0014] Furthermore, the suction bronchus and the endotracheal tube body form a "Y"-shaped tube, with the endotracheal tube body being the main channel of the "Y"-shaped tube and the suction bronchus being a tributary channel of the "Y"-shaped tube.

[0015] Furthermore, the endotracheal tube body has a side hole on the side away from the standard connector; the sputum collection bottle is detachably connected to the suction tube, and the suction tube is connected to a conical valve body, which controls the unidirectional flow of sputum from the suction tube to the sputum collection bottle body.

[0016] Furthermore, a groove is formed on the outer side wall of the endotracheal tube body, and the sealing airbag is connected to the bottom of the groove; the air guide tube passes through the side wall of the endotracheal tube body.

[0017] The principles and beneficial effects of the technical solution are as follows:

[0018] 1. This invention provides a multifunctional endotracheal tube for anesthesia. The endotracheal tube body is connected to a standard connector and a sealing cuff. When using this endotracheal tube, the side of the endotracheal tube body connected to the sealing cuff is inserted into the patient's body. An inflation / deflation device inflates or deflates the sealing cuff through the airway to seal the larynx. The standard connector connects to an auxiliary breathing device, which assists the patient's breathing. The endotracheal tube body is connected to a respiratory resistance monitoring component, which can monitor changes in airway resistance within the endotracheal tube body in real time during the patient's inspiration and expiration. When sputum is present in the endotracheal tube, the lumen of the endotracheal tube body narrows, increasing its airway resistance (pressure). Therefore, by monitoring the gas pressure inside the endotracheal tube body in real time through the respiratory resistance monitoring component, the real-time monitoring of sputum, sputum crusts, or sputum plugs within the endotracheal tube body is achieved, facilitating timely intervention by medical personnel and ensuring the patency of the endotracheal tube body.

[0019] 2. The present invention provides a multifunctional anesthetic endotracheal tube, wherein the respiratory resistance monitoring component includes an inspiratory resistance monitoring component, the inner side of which is provided with a monitoring bulb. When the assisted breathing device assists the patient in inhalation, part of the gas generated by the assisted breathing device enters the patient's body through the endotracheal tube body, and the other part acts on the monitoring bulb through the inspiratory resistance monitoring tube body, causing the monitoring bulb to move relative to the inspiratory resistance monitoring tube body. The respiratory resistance monitoring component also includes an expiratory resistance monitoring component, the inner side of which is slidably sealed with a monitoring piston. The monitoring piston is connected to the expiratory resistance monitoring tube body through a spring. When the assisted breathing device assists the patient in exhalation, it draws in gas from the patient's body and the expiratory resistance monitoring tube body, causing the monitoring piston to move relative to the expiratory resistance monitoring tube body against the action of the spring. Therefore, by observing the relative position of the monitoring bulb to the inspiratory resistance monitoring tube or the relative position of the monitoring piston to the expiratory resistance monitoring tube, it is possible to visually determine whether the endotracheal tube is patent. This allows for the detection of sputum, sputum crusts, or sputum plugs within the endotracheal tube, enabling early warning and preventing ventilation obstruction caused by these substances. The through-holes in the inspiratory and expiratory resistance monitoring tubes serve as pressure relief ports, ensuring the relative movement of the monitoring bulb and / or piston.

[0020] 3. This invention provides a multifunctional anesthetic endotracheal tube, in which both the inspiratory resistance monitoring tube and the expiratory resistance monitoring tube are detachably connected to the endotracheal tube body. This facilitates flexible assembly, sterilization, or replacement according to clinical needs, improving the practicality and economy of the device. It also allows for the selection of whether to use the inspiratory resistance monitoring component, use only one component, or use both components simultaneously, depending on clinical requirements. Both the inspiratory and expiratory resistance monitoring tubes are connected to a one-way gas valve, which controls the unidirectional flow of gas to ensure the functionality of the relative movement of the monitoring bulb and / or monitoring piston. Both the inspiratory and expiratory resistance monitoring tubes are made of transparent material and have graduated markings for easy and quantitative reading of resistance values. The through-hole is designed in an arc shape and equipped with an adjustable resistance adjustment cap, allowing adjustment of the pressure relief area according to the patient's specific condition, achieving individualized monitoring and improving the flexibility and applicability of the monitoring.

[0021] 4. The present invention provides a multifunctional anesthetic endotracheal tube, wherein the endotracheal tube body is also connected to a suction component. The sputum collection bottle of the suction component is detachably connected to the suction bronchus. The suction component can be activated according to actual clinical needs to avoid erroneous suctioning that could harm the patient. The suction bronchus and the endotracheal tube body form a "Y"-shaped structure, which allows suctioning to be performed without interrupting ventilation, reducing the risk of cross-infection. The conical valve body ensures that sputum flows unidirectionally into the sputum collection bottle, preventing backflow and airway contamination.

[0022] 5. The present invention provides a multifunctional endotracheal tube for anesthesia, wherein the sealing cuff is connected to the bottom of the groove opened in the endotracheal tube body, and the air tube is inserted through the side wall of the endotracheal tube body, making the overall structure of the endotracheal tube compact, without affecting the insertion and fixation of the endotracheal tube, and conforming to clinical usage habits. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a multifunctional anesthetic endotracheal tube according to the present invention;

[0024] Figure 2 This is a cross-sectional view of a multifunctional anesthetic endotracheal tube according to the present invention.

[0025] The names of the corresponding labels in the attached diagram are:

[0026] 1. Endotracheal tube body; 2. Standard connector; 3. Sealing cuff; 4. Inspiratory resistance monitoring tube body; 5. Monitoring bulb; 6. Inspiratory resistance adjustment cover; 7. Expiratory resistance monitoring tube body; 8. Monitoring piston; 9. Spring; 10. Expiratory resistance adjustment cover; 11. Side hole; 12. Suctioning bronchus; 13. Sputum collection bottle body; 14. Negative pressure catheter; 15. Conical valve body; 16. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0028] like Figure 1 and Figure 2 As shown, a multifunctional endotracheal tube for anesthesia includes an endotracheal tube body 1, which is connected to a standard connector 2. The standard connector 2 is connected to an auxiliary respiratory device (such as a ventilator or an anesthesia machine). A sealing cuff 3 is connected to the end of the endotracheal tube body 1 away from the standard connector 2. The sealing cuff 3 is connected to an external inflation / deflation device via an air delivery tube 4 to achieve airway sealing. A groove is formed on the outer wall of the end of the endotracheal tube body 1 away from the standard connector 2. The sealing cuff 3 is connected to the bottom of the groove, and the air delivery tube 4 is embedded along the tube wall and led out.

[0029] The endotracheal tube body 1 is detachably connected to a respiratory resistance monitoring component and a suction component on the side near the standard connector 2. The respiratory resistance monitoring component monitors respiratory resistance by monitoring the gas pressure inside the endotracheal tube body 1, and the suction component is used to remove sputum, sputum crusts or sputum plugs from inside the endotracheal tube body 1.

[0030] The inspiratory resistance monitoring component includes an inspiratory resistance monitoring tube 5 connected to the endotracheal tube body 1. A monitoring ball 6 is located on the inner side of the inspiratory resistance monitoring tube 5, and a through hole is opened on the side of the inspiratory resistance monitoring tube 5 away from the endotracheal tube body 1. The inspiratory resistance monitoring tube 5 is detachably connected to the endotracheal tube body 1, and is connected to a one-way gas valve. This one-way gas valve controls the unidirectional flow of gas from the endotracheal tube body 1 to the monitoring ball 6. The inspiratory resistance monitoring tube 5 is made of transparent material, and scale markings are provided on its outer wall. The through hole in the inspiratory resistance monitoring tube 5 is an arc-shaped hole, and an inspiratory resistance adjustment cover 7 with an arc-shaped adjustment orifice is rotatably connected to the inspiratory resistance monitoring tube 5. The size of the pressure relief hole is adjusted by adjusting the communication area between the arc-shaped adjustment orifice and the through hole.

[0031] The expiratory resistance monitoring assembly includes an expiratory resistance monitoring tube 8 connected to the endotracheal tube body 1. A monitoring piston 9 is slidably and sealed to the inner side of the expiratory resistance monitoring tube 8. The end of the monitoring piston 9 away from the endotracheal tube body 1 is connected to the expiratory resistance monitoring tube 8 via a spring 10. A through hole is provided on the side of the expiratory resistance monitoring tube 8 away from the endotracheal tube body 1. The expiratory resistance monitoring tube 8 is detachably connected to the endotracheal tube body 1 and is connected to a one-way gas valve. The one-way gas valve controls the unidirectional flow of gas from the monitoring piston 9 to the endotracheal tube body 1. The expiratory resistance monitoring tube 8 is made of transparent material, and scale markings are provided on its outer wall. The through hole of the expiratory resistance monitoring tube 8 is an arc-shaped hole, and an expiratory resistance adjustment cover 11 with an arc-shaped adjustment hole is rotatably connected to the expiratory resistance monitoring tube 8. The size of the pressure relief hole is adjusted by adjusting the communication area between the arc-shaped adjustment hole and the through hole.

[0032] The suction assembly includes a suction branch tube 13 connected to the endotracheal tube body 1, and a sputum collection bottle 14 connected to the suction branch tube 13. The sputum collection bottle 14 is connected to a negative pressure device via a negative pressure conduit 15. The suction branch tube 13 and the endotracheal tube body 1 form a "Y"-shaped tube, with the endotracheal tube body 1 serving as the main channel of the "Y"-shaped tube and the suction branch tube 13 serving as a tributary channel. The endotracheal tube body 1 has a side hole 12 on the side away from the standard connector 2. The sputum collection bottle 14 is detachably connected to the suction branch tube 13, and the suction branch tube 13 is connected to a conical valve 16, which controls the unidirectional flow of sputum from the suction branch tube 13 to the sputum collection bottle 14.

[0033] The specific implementation process is as follows:

[0034] When using this anesthetic endotracheal tube, connect the respiratory resistance monitoring component and the suction component according to actual clinical needs. Specifically, if the inspiratory or expiratory resistance monitoring component of the respiratory resistance monitoring component is needed, connect the corresponding tube body to the branch of the endotracheal tube body 1. If the corresponding monitoring component is not needed, use the sealing head to block the branch of the endotracheal tube body 1 connected to the corresponding monitoring component. The connection of the suction component is similar. When suctioning is needed, connect the sputum collection bottle 14 to the suction branch 13. When suctioning is not needed, use the sealing head to block the suction branch 13. Next, insert the tube according to clinical requirements, inserting the end of the endotracheal tube body 1 with the side hole 12 and the sealing cuff 3 into the patient's body, and start the inflation / deflation device to inflate the sealing cuff 3 to seal the airway; finally, start the assisted breathing device to assist the patient's breathing.

[0035] During the procedure, when the assisted ventilation device assists the patient's inhalation, part of the gas produced by the device enters the patient's body through the endotracheal tube body 1, and the other part acts on the monitoring bulb 6 through the inspiratory resistance monitoring tube 5, causing the monitoring bulb 6 to move relative to the inspiratory resistance monitoring tube 5. When the assisted ventilation device assists the patient's exhalation, it draws gas from the patient's body and the expiratory resistance monitoring tube 8, causing the monitoring piston 9 to move relative to the expiratory resistance monitoring tube 8 against the action of the spring 10. Therefore, by observing the relative position of the monitoring bulb 6 relative to the inspiratory resistance monitoring tube 5 or the relative position of the monitoring piston 9 relative to the expiratory resistance monitoring tube 8, the patency of the endotracheal tube body 1 can be directly determined. This allows for the detection of sputum, sputum crusts, or sputum plugs within the endotracheal tube body 1, enabling early warning and preventing ventilation obstruction caused by sputum, sputum crusts, or sputum plugs.

[0036] As needed for monitoring, the opening of the through-hole can be adjusted by rotating the inspiratory resistance adjustment cover 7 or the expiratory resistance adjustment cover 11, thereby adjusting the monitoring sensitivity to adapt to different ventilation modes or patient conditions. Furthermore, as needed clinically, the suction assembly can be connected and the negative pressure device activated to suction sputum, sputum crusts, or sputum plugs from the patient or the endotracheal tube body 1 into the sputum collection bottle 14. The conical valve 16 prevents sputum reflux, and during suctioning, because the suction branch 13 is a "Y"-shaped branch, the main ventilation channel can be uninterrupted, ensuring continuous ventilation for the patient.

[0037] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A multifunctional anesthetic endotracheal tube, comprising an endotracheal tube body, wherein the endotracheal tube body is connected to a standard connector for connecting to an assisted breathing device, and a sealing cuff is connected to the side of the endotracheal tube body away from the standard connector, the sealing cuff being connected to an inflation / deflation device via an air delivery tube; characterized in that, The endotracheal tube body is detachably connected to a breathing resistance monitoring component on the side near the standard connector. The breathing resistance monitoring component monitors breathing resistance by monitoring the gas pressure inside the endotracheal tube body.

2. The multifunctional anesthetic endotracheal tube according to claim 1, characterized in that, The breathing resistance monitoring component includes an inspiratory resistance monitoring component, which includes an inspiratory resistance monitoring tube body that is connected to the endotracheal tube body. A monitoring ball is provided on the inner side of the inspiratory resistance monitoring tube body, and a through hole is opened on the side of the inspiratory resistance monitoring tube body away from the endotracheal tube body.

3. A multifunctional anesthetic endotracheal tube according to claim 2, characterized in that, The breathing resistance monitoring component also includes an expiratory resistance monitoring component, which includes an expiratory resistance monitoring tube body that is connected to the endotracheal tube body. A monitoring piston is slidably and sealed to the inner side of the expiratory resistance monitoring tube body. The end of the monitoring piston away from the endotracheal tube body is connected to the expiratory resistance monitoring tube body by a spring. A through hole is provided on the side of the expiratory resistance monitoring tube body away from the endotracheal tube body.

4. A multifunctional anesthetic endotracheal tube according to claim 3, characterized in that, Both the inspiratory resistance monitoring tube and the expiratory resistance monitoring tube are detachably connected to the endotracheal tube body, and both are connected to a one-way gas valve. The one-way gas valve connected to the inspiratory resistance monitoring tube controls the gas to flow unidirectionally from the endotracheal tube body to the monitoring bulb, and the one-way gas valve connected to the expiratory resistance monitoring tube controls the gas to flow unidirectionally from the monitoring piston to the endotracheal tube body.

5. A multifunctional anesthetic endotracheal tube according to claim 3, characterized in that, Both the inspiratory resistance monitoring tube and the expiratory resistance monitoring tube are made of transparent material, and scale markings are provided on the outer walls of both tubes.

6. A multifunctional anesthetic endotracheal tube according to claim 3, characterized in that, Both the inspiratory resistance monitoring tube and the expiratory resistance monitoring tube have arc-shaped through holes, and both are rotatably connected to a resistance adjustment cover with an arc-shaped adjustment hole. The size of the pressure relief hole can be adjusted by adjusting the communication area between the arc-shaped adjustment hole and the through hole.

7. A multifunctional anesthetic endotracheal tube according to claim 1, characterized in that, The endotracheal tube body is also connected to a suction assembly, which includes a suction branch tube that communicates with the endotracheal tube body. The suction branch tube is connected to a sputum collection bottle, which is connected to a negative pressure device via a negative pressure conduit.

8. A multifunctional anesthetic endotracheal tube according to claim 7, characterized in that, The suction tube and the endotracheal tube body form a "Y"-shaped tube, with the endotracheal tube body being the main channel of the "Y"-shaped tube and the suction tube being a tributary channel of the "Y"-shaped tube.

9. A multifunctional anesthetic endotracheal tube according to claim 8, characterized in that, The endotracheal tube body has a side hole on the side away from the standard connector; the sputum collection bottle body is detachably connected to the suction tube, and the suction tube is connected to a conical valve body, which controls the unidirectional flow of sputum from the suction tube to the sputum collection bottle body.

10. A multifunctional anesthetic endotracheal tube according to claim 1, characterized in that, A groove is formed on the outer side wall of the endotracheal tube body, and the sealing airbag is connected to the bottom of the groove; the air tube passes through the side wall of the endotracheal tube body.

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