A channel switching component and tracheal tube

Abstract

The present invention provides a channel switching assembly and an endotracheal tube, which relate to the technical field of medical devices. The channel switching assembly of the present invention is used for the tube body of an endotracheal tube, and the tube body has a distal opening, a proximal opening, and a side opening. The channel switching assembly includes a first blocking member and a second blocking member arranged on the tube body, the first blocking member is used to control the opening and closing state of the distal opening, and the second blocking member is used to control the opening and closing state of the side opening; and also includes an adjusting member, the adjusting member is connected to the tube body, and the adjusting member is used to adjust the position and form of the first blocking member and the second blocking member, so that the distal opening and the side opening are in an open state and the other is in a closed state under the action of the adjusting member. Compared with the prior art, the present invention has the advantage of simplifying the operation steps when controlling the blocking of the endotracheal tube.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a channel switching component and a tracheal tube. Background Art

[0002] During thoracic surgery anesthesia, lung isolation is required to prevent the healthy lung from being contaminated by secretions or blood drained from the affected lung. In the prior art, endotracheal tubes are divided into single-lumen endotracheal tubes and double-lumen endotracheal tubes. The most commonly used method is to use a single-lumen endotracheal tube for bronchial intubation, and to achieve the purpose of lung isolation and single-lung ventilation by switching the openings on the single-lumen endotracheal tube for blocking control.

[0003] Through long-term surgical practice, the inventor found that when doctors perform occlusion control of tracheal tubes, the operation steps are relatively complicated. Summary of the invention

[0004] In order to solve the problem of complicated operation when performing occlusion control on a tracheal tube, the present application provides a channel switching component and a tracheal tube.

[0005] In a first aspect, the present application provides a channel switching component, which adopts the following technical solution:

[0006] A channel switching assembly is provided for a tube body of an endotracheal tube, the tube body having a distal opening, a proximal opening and a side opening, the channel switching assembly comprising a first blocking member and a second blocking member arranged on the tube body, the first blocking member being used to control the opening and closing state of the distal opening, and the second blocking member being used to control the opening and closing state of the side opening; and further comprising an adjusting member, the adjusting member being connected to the tube body, the adjusting member being used to adjust the position and form of the first blocking member and the second blocking member, so that under the action of the adjusting member, one of the distal opening and the side opening is in an open state and the other is in a closed state.

[0007] Preferably, the first blocking member includes an airbag, and the airbag can be connected and disconnected with an external air source under the action of the adjusting member, so that the airbag has at least a switchable contracted state and an inflated state when connected to the external air source, wherein when the airbag is in the contracted state, the distal opening is in an open state, and when the airbag is in the inflated state, the distal opening is in a closed state.

[0008] Preferably, the adjusting member includes a mounting seat and an adjusting wheel, wherein the adjusting wheel is rotatably disposed on the mounting seat, and the adjusting wheel has at least a first state and a second state that can be switched when rotating, wherein when the adjusting wheel is in the first state, the airbag is connected to an external air source to inflate the airbag; and when the adjusting wheel is in the second state, the airbag is disconnected from the external air source to shrink the airbag.

[0009] Preferably, a ventilation tube and an air connecting portion are provided on the mounting seat, the end of the ventilation tube away from the mounting seat is connected to the airbag, and the air connecting portion is connected to an external air source; a ventilation cavity through which gas can pass is provided on the adjusting wheel, wherein, when the adjusting wheel is in a first state, two ends of the ventilation cavity are respectively connected to the ventilation tube and the air connecting portion; when the adjusting wheel is in a second state, at least one of the ventilation tube and the air connecting portion is disconnected from the ventilation cavity.

[0010] Preferably, the second blocking member includes a shielding portion, which covers the side opening, and when the airbag switches from a contracted state to an inflated state, the shielding portion automatically switches from a state of covering the side opening to a state of opening the side opening.

[0011] Preferably, the adjusting member also includes a winding wheel, which is rotatably disposed on the mounting seat and coaxially connected to the adjusting wheel, and a pull wire is wound around the winding wheel, and the pull wire is connected to the shielding portion at one end away from the winding wheel, wherein when the adjusting wheel switches from the second state to the first state, the winding wheel winds the pull wire so that the shielding portion at least partially separates from the side opening under the tension of the pull wire.

[0012] Preferably, the airbag has a connecting side and an inflatable side, the connecting side is connected to the inner wall of the tube body, and the inflatable side is connected to the shielding portion via a traction rope, and when the airbag is gradually filled with gas, the inflatable side moves relative to the connecting side in a direction away from the side opening, so that the shielding portion is at least partially separated from the side opening under the pulling force of the traction rope.

[0013] Preferably, the adjusting member also includes a buckle, which is used to buckle with the handle portion of the endoscope; the buckle has an upper leg, the handle portion has a first sub-handle portion, and the upper leg is symmetrically provided with two first buckle cavities that are socketed and matched with the first sub-handle portion; the buckle has a lower leg, the handle portion has a second sub-handle portion, and the lower leg is symmetrically provided with two second buckle cavities that are socketed and matched with the second sub-handle portion; the cross-sectional area of ​​the first sub-handle portion is smaller than the cross-sectional area of ​​the second sub-handle portion, and the cross-sectional shapes of the first sub-handle portion and the second sub-handle portion are both elliptical.

[0014] Preferably, the tube body is provided with a first balloon and a second balloon, the first balloon and the second balloon are respectively arranged on both sides of the side opening, and the ventilation tube is connected with both the first balloon and the second balloon.

[0015] In a second aspect, the present application provides a tracheal tube, which adopts the following technical solution:

[0016] A tracheal tube comprises a tube body, wherein the proximal side of the tube body has a proximal opening, the distal side of the tube body has a distal opening, and the side wall of the tube body is provided with a side opening; the tracheal tube further comprises a channel switching assembly, and the channel switching assembly is the channel switching assembly described in any of the above technical solutions.

[0017] The present invention has the following advantages and beneficial effects:

[0018] The channel switching assembly of the present invention is used to control one of the side opening and the distal opening to be in an open state and the other to be in a closed state, so that the tracheal tube can achieve different air intake modes, so as to facilitate the implementation of air supply, hemostasis, or surgery on the affected lung side. Furthermore, the channel switching assembly of the present invention switches the state of the side opening and the distal opening based on the adjustment of the adjusting member. Under the action of the adjusting member, the first blocking member and the blocking member can change their position and shape in the tube body, thereby synchronously achieving the switching of the side opening and the distal opening state. That is, the channel switching assembly of the present invention can simultaneously control the switching of the side opening state and the distal opening state through one action, thereby improving the switching efficiency of the side opening state and the distal opening state and simplifying the operation steps of the tracheal tube.

[0019] Furthermore, the adjusting member of the present invention can be stably buckled on the handle of the endoscope, and can also be held by the doctor's hand or placed in other places, which greatly improves the convenience of installation of the adjusting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of some embodiments of the present application Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of some embodiments of the present application Figure 2 ;

[0023] Figure 3 are cross-sectional views of some embodiments of the present application;

[0024] Figure 4 It is a partial cross-sectional view of some embodiments of the present application Figure 1 ;

[0025] Figure 5 It is a partial cross-sectional view of some embodiments of the present application Figure 2 ;

[0026] Figure 6 It is a partial schematic diagram for demonstrating the connection relationship between the adjustment member and the handle portion in some embodiments of the present application;

[0027] Figure 7 is a partial cross-sectional view for showing an adjusting member in some embodiments of the present application;

[0028] Figure 8 It is a schematic diagram of some embodiments of the present application for showing the local state after the side opening is closed and the airbag is inflated Figure 1 ;

[0029] Fig. 9 is a schematic diagram of a local state of an airbag when it is deflated in some embodiments of the present application;

[0030] Fig.10 It is a schematic diagram of a local state of some embodiments of the present application for showing the closing of the side opening and the contraction of the airbag;

[0031] Fig.11 It is a schematic diagram of the local state of some embodiments of the present application for showing the side opening being opened and the airbag being inflated. Figure 2 ;

[0032] Fig.12 It is a schematic diagram of the partial structure of some embodiments of the present application for displaying the buckle.

[0033] The markings in the figure are:

[0034] 100, tube body; 110, proximal opening; 120, distal opening; 130, side opening; 140, first balloon; 150, second balloon; 200, first blocking member; 210, airbag; 211, connecting side; 212, inflation side; 300, second blocking member; 310, shielding part; 400, adjusting member; 410, mounting seat; 411, ventilation tube; 412, air connection part; 420, adjusting wheel; 421, ventilation cavity; 430, winding wheel; 440, docking sleeve; 450, knob part; 460, pull line; 470, traction rope; 480, buckle; 481, upper support leg; 481a, first buckle cavity; 482, lower support leg; 482a, second buckle cavity; 500, handle part; 510, first sub-handle part; 520, second sub-handle part. DETAILED DESCRIPTION

[0035] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0036] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0037] As an important medical device, endotracheal tubes are usually inserted into the patient's trachea and / or bronchi to establish a temporary artificial breathing channel for patients who cannot breathe independently. At the same time, in thoracic surgery anesthesia, endotracheal tubes are also widely used in lung isolation operations to prevent the affected lung secretions or blood from contaminating the healthy lung, thereby ensuring the cleanliness of the patient's airway during surgery and the smooth progress of the operation. Endotracheal tubes are mainly divided into two types: single-lumen endotracheal tubes and double-lumen endotracheal tubes. Among them, single-lumen endotracheal tubes have been more widely used in clinical practice due to their unique advantages. Specifically, the outer diameter of the single-lumen endotracheal tube is thinner, which can effectively reduce the risk of damage to the airway; its structural design is simple, which is easy for medical staff to operate; at the same time, its airway diameter remains consistent, reducing the resistance during airflow.

[0038] A single-lumen endotracheal tube usually includes a tube body, a distal opening, a proximal opening, a connecting tube, and a side opening. Among them, a through airway is formed inside the tube body. The distal opening is located at the distal end of the tube body and is usually in a normally open state to ensure that the gas can pass smoothly; the proximal opening is set at the proximal end of the tube body for inserting medical devices or injecting gas; the connecting tube is connected to the proximal end of the tube body and is used to connect the ventilation equipment to maintain the patient's normal breathing; and the side opening is located on the distal side wall of the tube body. It is normally closed and only opened during specific operations. In addition, in order to fix the position of the endotracheal tube and achieve effective bronchial blockage, two balloons are also provided on the tube body, located on both sides of the side opening. By inflating the balloon, it can be expanded, thereby achieving the fixation of the endotracheal tube and blocking a part of the patient's bronchus as needed.

[0039] In clinical surgery, the lung isolation function of the endotracheal tube is particularly important. In some specific operation scenarios, the single-lumen endotracheal tube needs to be isolated from the affected lung through specific operations. For example, when the patient has bronchial bleeding, it is usually necessary to inflate the balloon to block the bleeding segment to prevent blood from entering the healthy lung and ensure the normal function of the healthy lung; when surgery is required on the affected lung, the single-lumen endotracheal tube is inserted into the bronchus of the affected lung, and the side opening is aligned with the healthy lung. At this time, by closing the distal opening and opening the side opening, the airflow entering the tube body only flows to the healthy lung, and does not enter the bronchus on the affected lung side, thereby achieving isolation of the affected lung side; if bronchial bleeding is encountered during the operation, it is necessary to block the bleeding segment with the balloon while the catheter is fixed, and continue the operation after stopping the bleeding. It is worth noting that the location of bronchial bleeding may vary, so the blocking operation in different surgical scenarios is also different, which further increases the complexity of lung isolation operation.

[0040] In order to further improve the lung isolation function, the single-lumen endotracheal tube has been improved in the prior art. An inflatable balloon is provided at the distal end of the airway of the tube body. The balloon is located at the distal end of the side opening. After being inflated, it can close the airway at the distal end of the tube body, thereby closing the distal opening. In addition, an opening and closing member for controlling the opening and closing of the side opening is also provided in the airway of the tube body. The movement of the opening and closing member can realize the opening or closing of the side opening. These improvements enhance the flexibility and functionality of the endotracheal tube in achieving unilateral ventilation. However, these improved structures all require independent control. In actual operation, in order to achieve unilateral ventilation, the doctor needs to complete at least the following three steps: first, inflate the distal balloon to close the distal opening; second, open the side opening; and third, inflate the balloons on both sides of the side opening to fix the endotracheal tube. This multi-step operation mode improves the functionality of the catheter to a certain extent, but it also significantly increases the complexity of the doctor's operation.

[0041] Especially in clinical emergencies, such as sudden intrabronchial bleeding in patients, the response time of medical staff is usually only a few minutes or even tens of seconds. In this case, complex operating steps may cause doctors to make mistakes. For example, the doctor may miss a key step, such as not opening the side opening correctly or not closing the distal opening in time; or the functional structure may be opened or closed incorrectly due to confusion in the operating sequence under tension. The occurrence of these situations will directly affect the effect of lung isolation and may even endanger the patient's life. Therefore, in actual use, the existing single-lumen endotracheal tubes still have the significant defect of complex operation, especially in responding to emergencies, and it is difficult to meet the needs of fast and safe clinical applications.

[0042] Based on this, the present application provides a channel switching assembly and a tracheal tube. The channel switching assembly can open one of the side opening and the distal opening and close the other on the tracheal tube through one action, thereby greatly simplifying the blocking control operation of the tracheal tube.

[0043] The following is combined with Figure 1 to Figure 12 , a channel switching component and tracheal tube provided by the present application are described in detail through specific embodiments and their application scenarios.

[0044] The first aspect of this embodiment provides a detailed description of the channel switching component.

[0045] Reference Figure 1~Figure 3 , a channel switching assembly is used on the tube body 100 of the endotracheal tube, and the tube body 100 is provided with a proximal opening 110, a distal opening 120 and a side opening 130. Exemplarily, the proximal opening 110 is arranged at the proximal end of the tube body 100, and is used to extend the insertion part of the endoscope or other instruments through the proximal opening 110 into the inside of the tube body 100, and further enter the bronchus of the human body. The distal opening 120 is arranged at the distal end of the tube body 100, and the insertion part or instrument of the endoscope can extend from the tube body 100 to the bronchus of the human body through the distal opening 120. For example, the lighting device arranged on the insertion part of the endoscope can enter the bronchus through the distal opening 120 to provide lighting function for the surgical area; the camera device on the insertion part of the endoscope can also enter the bronchus through the distal opening 120, collect images and transmit them to the host display screen for the doctor to view. Exemplarily, the side opening 130 is arranged on the tube wall of the tube body 100 near the distal opening 120.

[0046] Exemplary, combined Figure 1 , Figure 2 as well as Figure 3 , a first balloon 140 and a second balloon 150 are arranged on the tube body 100. Exemplarily, the tube body 100 also includes a catheter, wherein the catheter is used to provide a gas filling and / or exhaust channel for the first balloon 140, and the catheter is also used to provide a gas filling and / or exhaust channel for the second balloon 150. Exemplarily, the second balloon 150 is arranged at the distal end of the first balloon 140. By inflating the first balloon 140 and the second balloon 150, both can be expanded, so that the endotracheal tube is fixed in the trachea. Exemplarily, the first balloon 140 and the second balloon 150 can be inflated or exhausted at the same time, or they can be inflated or exhausted separately.

[0047] Exemplarily, the bronchi of the human body include the main trachea and the bronchi, the bronchi are located at the distal end of the main trachea, and are symmetrically distributed into two, and can directly lead to the lungs of the human body through the bronchi. When the tube body 100 of the tracheal tube is inserted from the main trachea into one of the bronchi, and the side opening 130 faces the other bronchi, if the side opening 130 is in an open state, ventilation of both lungs can be achieved simultaneously. Similarly, when the tube body 100 of the tracheal tube is inserted from the main trachea into one of the bronchi, and the side opening 130 faces the other bronchi, if the side opening 130 is closed, ventilation of one lung can be achieved. It should be noted that in any case, at least one side of the lung must be kept in a ventilated state, otherwise the human body may suffer irreversible consequences due to the inability to effectively ventilate.

[0048] The channel switching assembly of this embodiment includes a first blocking member 200 and a second blocking member 300, both of which are arranged on the tube body 100, wherein the first blocking member 200 is used to control the opening and closing state of the distal opening 120, and the second blocking member 300 is used to control the opening and closing state of the side opening 130. Exemplarily, the channel switching assembly also includes an adjusting member 400, which is connected to the tube body 100, and is used to adjust the position and form of the first blocking member 200 and the second blocking member 300, so that under the action of the adjusting member 400, one of the distal opening 120 and the side opening 130 is in an open state and the other is in a closed state. Exemplarily, the distal opening 120 and the side opening 130 are relatively open or closed, that is, when the distal opening 120 is in an open state, the side opening 130 is correspondingly in a closed state under the action of the adjusting member 400; and when the distal opening 120 is in a closed state, the distal opening 120 is correspondingly in an open state under the action of the adjusting member 400.

[0049] It should be noted that before initial use, the second blocking member 300 is initially set to a state in which the side opening 130 is closed, and the first blocking member 200 is initially set to a state in which the distal opening 120 is opened. During subsequent use, the adjustment of the adjustment member 400 is used to switch to a state in which the first blocking member 200 closes the distal opening 120 and the second blocking member 300 opens the side opening 130, depending on the specific circumstances of the operation.

[0050] On this basis, there will be occlusion switching modes corresponding to the following surgical situations.

[0051] Case 1: When the affected lung needs surgery, the tube body 100 of the tracheal tube can be extended from the main trachea part of the human bronchus into the tracheal tube connected to the affected lung, so that the distal opening 120 of the tube body 100 reaches or faces the lesion site of the affected lung, and the side opening 130 is located in the main trachea and faces the tracheal tube connected to the healthy lung. At this time, the first balloon 140 and the second balloon 150 are inflated through the catheter, so that the first balloon 140 and the second balloon 150 gradually expand from a contracted state to an inflated state. During the expansion process, the first balloon 140 in the main trachea will apply an abutment force to the inner wall of the main trachea in the inflated state, so as to fit closely to the inner wall of the main trachea and block the airway of the main trachea. At the same time, the second balloon 150 in the tracheal tube will apply an abutment force to the inner wall of the trachea in the inflated state, so as to fit closely to the inner wall of the trachea and block the airway of the trachea. In this state, the tracheal tube is fixed between the main trachea and the tracheal tube connected to the affected lung, and the main trachea and the tracheal tube connected to the affected lung are completely isolated by inflating the first balloon 140 and the second balloon 150, blocking the ventilation of the affected lung, and ensuring that the surgical environment of the affected lung is effectively isolated from the healthy lung. It should be noted that in order to ensure that at least one of the two lungs is always ventilated, the side opening 130 can be opened or closed at this time. However, in order to prevent the liquid produced by the affected lung during the operation from entering the healthy lung through the side opening 130, the side opening 130 needs to be set to a normally closed state at this time. In the above-mentioned surgical scenario, the positioning and functional configuration of the tracheal tube can be completed by simply fixing the tube body 100 in the main trachea by inflating the first balloon 140 and the second balloon 150.

[0052] Case 2: When the affected lung needs surgery and the wall of the trachea connected to the affected lung is accidentally scratched, causing bleeding: At this time, the surgery must be terminated, and the trachea connected to the affected lung must be blocked first, and then the hemostasis operation can be performed. Because the bleeding of the wall of the trachea connected to the affected lung is caused by the tube body 100 extending from the main trachea of ​​the human bronchus into the trachea connected to the affected lung, at this time, the tube section of the tube body 100 with the distal opening 120 is already located in the trachea connected to the affected lung. In this case, the first balloon 140 and the second balloon 150 are first inflated to fix the tube body 100 in the human bronchus, and at the same time, the second balloon 150 also blocks the trachea connected to the affected lung, so that the blood in the bleeding part of the wall of the trachea connected to the affected lung is not easy to flow out. Next, the adjusting member 400 is operated to change the position and shape of the first blocking member 200 and the second blocking member 300, so that the side opening 130 is in an open state and the distal opening 120 is in a closed state. In this way, the trachea connected to the affected lung can be completely blocked, which is convenient for hemostasis. In the above surgical scenario, after the tube body 100 is fixed in the main trachea by inflating the first balloon 140 and the second balloon 150, only one action of operating the adjusting member 400 is required to open the side opening 130 and close the distal opening 120.

[0053] Case 3: When the affected lung needs surgery, the inner wall of the main trachea is accidentally scratched when the tube body 100 is inserted into the main trachea, causing bleeding: At this time, the surgery must be terminated, that is, the insertion of the tube body 100 is stopped, and then the main trachea is retracted to a position where the bleeding site is between the first balloon 140 and the second balloon 150, and then the first balloon 140 and the second balloon 150 are inflated to block both sides of the bleeding site in the main trachea. Because before the initial use, the initial setting state of the second blocking member 300 is the state of closing the side opening 130, and the initial setting state of the first blocking member 200 is the state of opening the distal opening 120, there is no need to operate the adjustment member 400, and the operating steps in this case are similar to those in Case 1.

[0054] Case 4: When the affected lung needs surgery, the inner wall of the junction of the two sub-tracheas is accidentally scratched when the tube body 100 is inserted into the main trachea, causing bleeding: At this time, the operation must be terminated, and the bleeding site needs to be blocked first, and then the hemostasis operation is performed. There are two options at this time. The first is to continue to extend the tube body 100 into the sub-trachea connected to the affected lung, and the second is to extend the tube body 100 into the sub-trachea connected to the healthy lung. Since the side opening 130 of the tube body 100 is closed and the distal opening 120 is open during initial use, there is no need to operate the adjustment member 400. In this way, the space around the bleeding site is closed, gas cannot circulate, and the blood in the bleeding site cannot continue to spread. At the same time, since the distal opening 120 of the tube body 100 is inserted into the sub-trachea after avoiding the bleeding site, the human lungs can still achieve gas circulation.

[0055] In some embodiments, reference Figure 3 , Figure 4 as well as Figure 5 The first blocking member 200 includes an airbag 210, which can be switched on and off with the external air source under the action of the adjusting member 400, so that the airbag 210 has at least a switchable contraction state and an inflation state when connected to the external air source. Exemplarily, when the airbag 210 is in the contracted state, the distal opening 120 is in the open state, and when the airbag 210 is in the inflation state, the distal opening 120 is in the closed state. Exemplarily, when the airbag 210 is in the inflation state, the cross-sectional area of ​​the airbag 210 is greater than the cross-sectional area of ​​the inner cavity of the tube body 100, so that the airbag 210 can completely block the inner cavity channel of the tube body 100 near the distal opening 120 when in the inflation state, and finally achieve the closure of the distal opening 120. When the airbag 210 is in a contracted state, the cross-sectional area of ​​the airbag 210 is smaller than the cross-sectional area of ​​the inner cavity of the tube body 100. At this time, the airbag 210 cannot block the inner cavity of the tube body 100 near the distal opening 120, thereby leaving the distal opening 120 in an open state.

[0056] In some embodiments, Figure 6 , Figure 7 As shown, the adjusting member 400 includes a mounting seat 410 and an adjusting wheel 420. The adjusting wheel 420 is rotatably disposed on the mounting seat 410. The adjusting wheel 420 has at least a switchable first state and a second state when rotating. Figure 8 , Fig. 9 When the adjusting wheel 420 is in the first state, the airbag 210 is connected to the external air source to inflate the airbag 210; when the adjusting wheel 420 is in the second state, the airbag 210 is disconnected from the external air source to shrink the airbag 210.

[0057] Exemplarily, the mounting seat 410 has a docking sleeve 440, and the adjusting wheel 420 is rotatably embedded in the docking sleeve 440, and the adjusting wheel 420 is coaxially matched with the docking sleeve 440. Therefore, the adjusting wheel 420 can be rotated relative to the docking sleeve 440 to switch between the first state and the second state. Exemplarily, a knob portion 450 is coaxially provided outside the docking sleeve 440 of the adjusting wheel 420, and a plurality of protrusions and depressions are provided on the rotating surface of the knob portion 450, so that it is convenient for the doctor to hold the knob portion 450, thereby making it easier to operate the adjusting wheel 420.

[0058] In some embodiments, in combination Figure 6~Figure 9 A ventilation tube 411 and an air connecting portion 412 are provided on the mounting seat 410, wherein one end of the ventilation tube 411 away from the mounting seat 410 is connected to the airbag 210, and the air connecting portion 412 is connected to an external air source; illustratively, a ventilation cavity 421 is provided on the adjusting wheel 420 for gas to pass through, wherein when the adjusting wheel 420 is in a first state, two ends of the ventilation cavity 421 are respectively connected to the ventilation tube 411 and the air connecting portion 412; when the adjusting wheel 420 is in a second state, at least one of the ventilation tube 411 and the air connecting portion 412 is disconnected from the ventilation cavity 421.

[0059] Exemplarily, the vent pipe 411 and the air receiving portion 412 are both installed on the outer wall of the docking sleeve 440. Exemplarily, the shape of the ventilation cavity 421 is linear, and the ventilation cavity 421 has a first port and a second port. When the adjustment wheel 420 is in the first state, the first end of the ventilation cavity 421 is directly opposite to the air receiving portion 412, and the second end of the ventilation cavity 421 is directly opposite to the pipe opening of one end of the vent pipe 411. Exemplarily, the air receiving portion 412 is penetrated with an air source channel, and the external ventilation device can insert the air supply pipe into the air receiving portion 412 so that the air supply pipe is connected with the air source channel. In this way, after starting the external ventilation device, the ventilation device can pass the gas into the air receiving portion 412, the ventilation cavity 421 and the vent pipe 411 in sequence, and finally fill it into the airbag 210 to achieve the inflation of the airbag 210, thereby blocking the distal opening 120. Similarly, the external ventilation device can also evacuate air. After the airbag 210 is evacuated, the airbag 210 can be contracted, thereby opening the distal opening 120 .

[0060] Exemplarily, the air receiving portion 412 and the venting tube 411 are on the same vertical line, and a marking line is provided on the outer wall of the knob portion 450 away from the docking sleeve 440, and the length direction of the marking line is parallel to the extension direction of the ventilation cavity 421. Further, when the straight line formed by the air receiving portion 412 and the venting tube 411 is relatively perpendicular to the marking line, the adjusting wheel 420 is in the second state, and when the straight line formed by the air receiving portion 412 and the venting tube 411 is relatively parallel to the marking line, the adjusting wheel 420 is in the first state. Such a setting can improve the doctor's control over the state adjustment of the adjusting wheel 420 during operation, that is, the state of the adjusting wheel 420 can be judged by the position of the marking line.

[0061] Exemplarily, a rubber ring is embedded between the docking sleeve 440 and the adjusting wheel 420 to increase the friction resistance of the adjusting wheel 420 during rotation, thereby improving the operability of the adjusting wheel 420, and when no rotational force is applied to the adjusting wheel 420, the adjusting wheel 420 can be more stably in the current position and is less likely to rotate.

[0062] In some embodiments, in combination Figure 3 , Figure 4 The second blocking member 300 includes a shielding portion 310 , which covers the side opening 130 . When the airbag 210 switches from a contracted state to an inflated state, the shielding portion 310 automatically switches from a state of covering the side opening 130 to a state of opening the side opening 130 .

[0063] In some optional embodiments, such as Figure 7 , Figure 8 as well as Fig. 9 As shown, the adjusting member 400 further includes a winding wheel 430, which is rotatably arranged on the mounting seat 410 and coaxially connected with the adjusting wheel 420, and a pull wire 460 is wound on the winding wheel 430, and the pull wire 460 is connected to the shielding portion 310 at one end away from the winding wheel 430, wherein, when the adjusting wheel 420 switches from the second state to the first state, the winding wheel 430 winds the pull wire 460, so that the shielding portion 310 is at least partially separated from the side opening 130 under the tension of the pull wire 460. Exemplarily, the knob portion 450, the adjusting wheel 420 and the winding wheel 430 are all coaxially mounted on a rotating shaft, and then when the doctor operates the knob portion 450, the adjusting wheel 420 and the winding wheel 430 can be driven to rotate synchronously at the same time.

[0064] With such arrangement, when the doctor operates the knob portion 450 to adjust the state of the adjusting wheel 420, the shielding portion 310 can be adjusted synchronously, so that the inflation of the airbag 210 and the at least partial disengagement of the shielding portion 310 from the side opening 130 can be performed synchronously, that is, the doctor only needs to perform one step to realize two adjustment actions, thereby simplifying the doctor's operating steps when performing occlusion control.

[0065] Exemplarily, the length of the redundant section of the pull line 460 is less than the length of the rotation path of the adjusting wheel 420 switching from the second state to the first state, so that when the adjusting wheel 420 switches from the second state to the first state, the pull line 460 has already pulled at least part of the shielding portion 310 off from the side opening 130, thereby opening the side opening 130. The purpose of this arrangement is that in any case, at least one side of the lung of the human body must be kept in a ventilated state, otherwise the human body may not be able to perform effective ventilation and cause irreversible consequences. Therefore, in order to avoid the situation where the shielding portion 310 has not been detached from the side opening 130 when the airbag 210 is already in an inflated state, resulting in the distal opening 120 and the side opening 130 being in a closed state, the length of the redundant section of the pull line 460 is less than the length of the rotation path of the adjusting wheel 420 switching from the second state to the first state, thereby opening the side opening 130 before the airbag 210 is inflated, thereby improving the safety of the opening switching.

[0066] In some optional embodiments, the shielding portion 310 is a rubber sheet, and the cross-sectional area of ​​the rubber sheet is larger than the opening area of ​​the side opening 130, so that the rubber sheet can completely cover the side opening 130, thereby blocking the side opening 130. Exemplarily, an open slit is provided near the middle of the rubber sheet, and the open slit is always in a closed state in a natural state. Furthermore, one end of the pull wire 460 is connected to the portion of the rubber sheet located on one side of the open slit, so that when the pull wire 460 applies tension to the rubber sheet, the portion of the rubber sheet located on one side of the open slit is pulled to open the open slit, thereby making the side opening 130 open.

[0067] In some optional embodiments, the shielding portion 310 is a diaphragm, and the cross-sectional area of ​​the diaphragm is larger than the opening area of ​​the side opening 130, so that the rubber sheet can completely cover the side opening 130, thereby blocking the side opening 130. Exemplarily, the diaphragm is bonded to the inside of the tube body 100 and covers the side opening 130, and the bonding force between the diaphragm and the inner wall of the tube body 100 is less than the tension generated when the pull wire 460 is wound on the winding wheel 430. In this way, when the diaphragm is not subjected to the tension of the pull wire 460, the side opening 130 can always be closed; and when the tension generated when the pull wire 460 is wound, the diaphragm can be separated from the side opening 130 under the action of the tension, thereby opening the side opening 130.

[0068] In some embodiments, in combination Fig.10 , Fig.11 The airbag 210 has a connection side 211 and an inflation side 212, the connection side 211 is connected to the inner wall of the tube body 100, and the inflation side 212 is connected to the shielding portion 310 through a traction rope 470. When the airbag 210 is gradually filled with gas, the inflation side 212 moves relative to the connection side 211 in a direction away from the side opening 130, so that the shielding portion 310 is at least partially separated from the side opening 130 under the pulling force of the traction rope 470. Exemplarily, the inflation side 212 is a free side of the airbag 210 and is located at an end away from the connection side 211. With such a configuration, after the airbag 210 is filled with gas, the position of the connection side 211 is not easily changed because the connection side 211 is connected to the inner wall of the tube body 100, and the inflation side 212 is a free side, so when the airbag 210 is filled with gas, the inflation side 212 of the airbag 210 will move toward the end away from the connection side 211, thereby pulling the traction rope 470. At this time, the inflation of the airbag 210 will change the position of the traction rope 470, so the traction rope 470 will apply a pulling force on the diaphragm, thereby pulling at least part of the diaphragm off the side opening 130. At this time, the side opening 130 will be in an open state.

[0069] It is worth noting that in the above two embodiments, when the airbag 210 is inflated, the side opening 130 is opened first, and then the airbag 210 is inflated. This can avoid the situation where both the side opening 130 and the distal opening 120 are in a closed state, which is beneficial to protecting the patient's physical and mental health.

[0070] In some embodiments, in combination Figure 7 , Fig.12 , the adjusting member 400 further includes a buckle 480, which is used to buckle with the handle portion 500 of the endoscope. Exemplarily, the buckle 480 has an upper leg 481, the handle portion 500 has a first sub-handle 510, and the upper leg 481 is symmetrically provided with two first buckle cavities 481a that are sleeved and matched with the first sub-handle 510. Exemplarily, the buckle 480 has a lower leg 482, the handle portion 500 has a second sub-handle 520, and the lower leg 482 is symmetrically provided with two second buckle cavities 482a that are sleeved and matched with the second sub-handle 520. Exemplarily, the cross-sectional area of ​​the first sub-handle 510 is smaller than the cross-sectional area of ​​the second sub-handle 520, and the cross-sectional shapes of the first sub-handle 510 and the second sub-handle 520 are both polygonal, elliptical, or other non-circular structures with complex edges.

[0071] Exemplarily, the handle portion 500 of the endoscope also has an instrument communication port, which is located at the junction of the first sub-handle portion 510 and the second sub-handle portion 520, and is used for the medical auxiliary device to be inserted into the handle portion 500 through the communication port and extend out of the distal opening 120 along the insertion portion and the tube body 100. Exemplarily, the cross-sectional shapes of the first sub-handle portion 510 and the second sub-handle portion 520 are both elliptical. When the first buckle cavity 481a formed by the two upper legs 481 is sleeved on the first sub-handle portion 510, since the cross-sectional shape of the first sub-handle portion 510 is elliptical, the adjusting member 400 is not easy to rotate circumferentially after being sleeved on the handle portion 500, thereby achieving effective fixation in its own circumferential direction. Similarly, the second buckle cavity 482a formed by the two lower legs 482 is not easy to rotate circumferentially after being sleeved on the second sub-handle portion 520.

[0072] Exemplarily, the first snap-fit ​​cavity 481a formed by the two upper legs 481 is sleeved on the first sub-handle 510 near the second sub-handle 520. After being so configured, due to the limiting effect of the two upper legs 481, the adjusting member 400 is not easy to slide downward under the action of its own gravity after being sleeved on the handle portion 500, thereby enabling the adjusting member 400 to be more stably installed on the insertion portion of the endoscope, thereby improving the installation stability of the adjusting member 400.

[0073] In some embodiments, in combination Figure 5 , Fig.10 as well as Fig.11 , the ventilating tube 411 is connected to the first balloon 140 and the second balloon 150. In this arrangement, since the ventilating tube 411 is already connected to the airbag 210, after the gas is introduced into the ventilating tube 411, the first balloon 140, the second balloon 150 and the airbag 210 can be inflated at the same time, so that the fixing of the tube body 100 in the human bronchus, the closing of the distal opening 120 and the opening of the side opening 130 are all achieved in one step, which greatly simplifies the switching steps of the doctor when operating the tracheal tube.

[0074] The second aspect of this embodiment provides a detailed description of the endotracheal tube.

[0075] Please refer to Figure 1 , Figure 2 as well as Figure 3The endotracheal tube of this embodiment includes a tube body 100, the proximal side of the tube body 100 has a proximal opening 110, the distal side of the tube body 100 has a distal opening 120, and the side wall of the tube body 100 is provided with a side opening 130. Exemplarily, the proximal opening 110 is located at the proximal end of the tube body 100, and the distal opening 120 is located at the distal end of the tube body 100; or, the proximal opening 110 is located on the side wall near the proximal end of the tube body 100, the distal opening 120 is located on the side wall near the distal end of the tube body 100, and the side opening 130 is located on the side wall of the tube body 100 between the distal opening 120 and the proximal opening 110, and the side opening 130 is located closer to the distal opening 120.

[0076] The tracheal tube of this embodiment further includes a channel switching component. The channel switching component is the channel switching component of any technical solution of this embodiment.

[0077] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A channel switching component, characterized in that: A tube body (100) for an endotracheal tube, the tube body (100) having a distal opening (120), a proximal opening (110) and a side opening (130), characterized in that the channel switching assembly comprises a first blocking member (200) and a second blocking member (300) provided on the tube body (100), the first blocking member (200) being used to control the opening and closing state of the distal opening (120), and the second blocking member (300) being used to control the opening and closing state of the side opening (130); It also comprises an adjusting member (400), the adjusting member (400) being connected to the tube body (100), the adjusting member (400) being used to adjust the position and shape of the first blocking member (200) and the second blocking member (300), so that under the action of the adjusting member (400), one of the distal opening (120) and the side opening (130) is in an open state and the other is in a closed state; The first blocking member (200) comprises an airbag (210), and the airbag (210) can be switched on and off with an external air source under the action of the regulating member (400), so that the airbag (210) has at least a switchable contraction state and an inflation state when connected to the external air source, wherein when the airbag (210) is in the contraction state, the distal opening (120) is in the open state, and when the airbag (210) is in the inflation state, the distal opening (120) is in the closed state; The adjusting member (400) comprises a mounting seat (410) and an adjusting wheel (420), wherein the adjusting wheel (420) is rotatably disposed on the mounting seat (410), and the adjusting wheel (420) has at least a first state and a second state that can be switched when rotating, wherein when the adjusting wheel (420) is in the first state, the airbag (210) is connected to an external air source so that the airbag (210) is inflated; and when the adjusting wheel (420) is in the second state, the airbag (210) is disconnected from the external air source so that the airbag (210) is deflated; The mounting seat (410) is provided with a vent pipe (411) and an air connection portion (412); one end of the vent pipe (411) away from the mounting seat (410) is in communication with the air bag (210), and the air connection portion (412) is in communication with an external air source; the regulating wheel (420) is provided with a vent channel (421) through which gas can pass; when the regulating wheel (420) is in a first state, two ends of the vent channel (421) are respectively in communication with the vent pipe (411) and the air connection portion (412); when the regulating wheel (420) is in a second state, at least one of the vent pipe (411) and the air connection portion (412) is disconnected from the vent channel (421); The second blocking member (300) comprises a shielding portion (310), the shielding portion (310) being arranged to cover the side opening (130), and when the airbag (210) switches from a contracted state to an inflated state, the shielding portion (310) automatically switches from a state of covering the side opening (130) to a state of opening the side opening (130).

2. A channel switching component according to claim 1, characterized in that: The adjusting member (400) further comprises a winding wheel (430), the winding wheel (430) being rotatably mounted on the mounting seat (410) and being coaxially connected to the adjusting wheel (420), a pulling wire (460) being wound around the winding wheel (430), and an end of the pulling wire (460) away from the winding wheel (430) being connected to the shielding portion (310), wherein: When the adjusting wheel (420) switches from the second state to the first state, the wire winding wheel (430) winds the pull wire (460) so that the shielding portion (310) is at least partially separated from the side opening (130) under the pulling force of the pull wire (460).

3. A channel switching component according to claim 1, characterized in that: The airbag (210) comprises a connecting side (211) and an inflation side (212); the connecting side (211) is connected to the inner wall of the tube body (100); the inflation side (212) is connected to the shielding portion (310) via a traction rope (470); when gas is gradually inflated into the airbag (210), the inflation side (212) moves relative to the connecting side (211) in a direction away from the side opening (130), so that the shielding portion (310) is at least partially separated from the side opening (130) under the pulling force of the traction rope (470).

4. A channel switching component according to claim 1, characterized in that: The adjusting member (400) further comprises a buckle (480), wherein the buckle (480) is used to buckle and cooperate with the handle portion (500) of the endoscope; The buckle (480) has an upper support leg (481), the handle portion (500) has a first sub-handle portion (510), and the upper support leg (481) is symmetrically provided with two first buckle cavities (481a) that are sleeved and matched with the first sub-handle portion (510); The buckle (480) has a lower support leg (482), the handle portion (500) has a second sub-handle portion (520), and the lower support leg (482) is symmetrically provided with two second buckle-engaging cavities (482a) that are sleeve-engaged with the second sub-handle portion (520); The cross-sectional area of ​​the first sub-handle (510) is smaller than the cross-sectional area of ​​the second sub-handle (520), and the cross-sectional shapes of the first sub-handle (510) and the second sub-handle (520) are both elliptical.

5. A channel switching component according to claim 1, characterized in that: The tube body (100) is provided with a first balloon (140) and a second balloon (150), the first balloon (140) and the second balloon (150) being respectively arranged on both sides of the side opening (130), and the ventilation tube (411) is connected to both the first balloon (140) and the second balloon (150).

6. A tracheal tube, characterized in that: It comprises a tube body (100), wherein the proximal side of the tube body (100) has a proximal opening (110), the distal side of the tube body (100) has a distal opening (120), and a side opening (130) is provided on the side wall of the tube body (100); The endotracheal tube further comprises a channel switching assembly, and the channel switching assembly is the channel switching assembly according to any one of claims 1-5.

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