Channel switching assembly and endotracheal tube

Abstract

The present invention provides a channel switching assembly and an endotracheal tube, which relate to the technical field of medical devices. The present invention includes a channel switching assembly for a tube body of an endotracheal tube, the tube body having a distal opening, a proximal opening and a side opening, a first channel and a second channel isolated from each other are arranged in the tube body, the proximal end of the first channel can be connected to the proximal opening, the distal end to the distal opening, the proximal end of the second channel can be connected to the proximal opening, the distal end to the side opening; the channel switching assembly includes a blocking member, the blocking member is movably arranged on the tube body, and is used to block the first channel or the second channel, so that one of the first channel and the second channel is disconnected from the proximal opening, and the other is connected to the proximal opening; the channel switching assembly also includes a sealing member, the sealing member is arranged on the sealing member, and the sealing member is used to cooperate with the blocking member to disconnect the first channel from the proximal opening when the insertion portion is located in the first channel. The present invention has the advantage of simplifying the operation steps of the blocking control 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 applicant found that the operation steps for doctors to perform occlusion control of tracheal tube are relatively cumbersome. Summary of the invention

[0004] In order to improve the problem of complicated operation steps 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 used for a tube body of an endotracheal tube, the tube body having a distal opening, a proximal opening and a side opening, the tube body being provided with a first channel and a second channel isolated from each other, the proximal end of the first channel being connected to the proximal opening and the distal end being connected to the distal opening, the proximal end of the second channel being connected to the proximal opening and the distal end being connected to the side opening, the first channel being used for inserting an insertion portion of an endoscope; the channel switching assembly comprising a blocking member, the blocking member being movably provided on the tube body and being used for blocking the first channel or the second channel, so that one of the first channel and the second channel is disconnected from the proximal opening and the other is connected to the proximal opening; the channel switching assembly further comprising a sealing member, the sealing member being provided on the blocking member, the sealing member being used for cooperating with the blocking member to disconnect the first channel from the proximal opening when the insertion portion is located in the first channel.

[0007] Preferably, the blocking member includes a blocking portion, which is slidably arranged on the tube body near the proximal opening, and the blocking portion is penetrated by a first through hole and a second through hole, and the insertion portion can extend to the distal opening through the first through hole, and the blocking portion can be switched to at least a first state and a second state during the sliding process, wherein when the blocking member is switched to the first state, the first through hole connects the proximal opening and the first channel, and the second channel and the proximal opening are disconnected under the blocking action of the blocking member; when the blocking member is switched to the second state, the second through hole connects the proximal opening and the second channel, and the first channel and the proximal opening are disconnected under the blocking action of the blocking member.

[0008] Preferably, the tube body is provided with a mounting portion near the proximal opening, the mounting portion has a sliding cavity communicated with the tube body, and the blocking portion is slidably and sealedly cooperated with the sliding cavity; when the blocking member is switched to a first state, the first through hole is located in the tube body, and the second through hole is located in the sliding cavity; when the blocking member is switched to a second state, the second through hole is located in the tube body, and the first through hole is located in the sliding cavity.

[0009] Preferably, the blocking portion is further penetrated by a third through hole connected to the first through hole, and the first rubber portion is embedded in the third through hole; when the insertion portion passes through the first through hole, during the process of the blocking member switching from the first state to the second state, the blocking portion enters the third through hole, and the first rubber portion is deformed under the extrusion of the insertion portion to circumferentially seal the insertion portion in the third through hole.

[0010] Preferably, the third through hole has symmetrical guiding slopes, and along the moving direction of the blocking portion, the distance between the two guiding slopes gradually increases from the side away from the first through hole to the side close to the first through hole, so that when the blocking portion moves, the insertion portion is squeezed with the first rubber portion, and the portions of the first rubber portion located on both sides of the insertion portion are circumferentially covered on the back side of the insertion portion under the guidance of the guiding slopes.

[0011] Preferably, a second rubber portion is provided in the mounting portion, and a receiving groove is provided on a side of the first through hole away from the third through hole, and when the blocking member is switched to the first state, the second rubber portion is located in the receiving groove; along the moving direction of the blocking portion, the second rubber portion is directly opposite to the first rubber portion, and when the blocking member is switched from the first state to the second state, the second rubber portion circumferentially covers the back side of the insertion portion away from the first rubber portion.

[0012] Preferably, the blocking member also includes a sliding portion, and the inner wall of the sliding cavity is provided with a limiting sliding groove that slidably cooperates with the sliding portion, and the limiting sliding groove has a first end and a second end; when the blocking member is in a first state, the sliding portion and the first end of the limiting sliding groove are limited and stopped, and when the blocking member is in a second state, the sliding portion and the second end of the limiting sliding groove are limited and stopped.

[0013] Preferably, the blocking member further includes a push-pull portion, which is disposed at an end of the blocking portion away from the mounting portion, wherein in the process of the blocking member switching from the first state to the second state, the push-pull portion gradually moves away from the mounting portion; or, in the process of the blocking member switching from the first state to the second state, the push-pull portion gradually approaches the mounting portion.

[0014] Preferably, a shielding portion is provided at one end of the second channel close to the proximal opening, and the shielding portion is used to partially shield the port of the second channel; along the direction from the distal opening to the proximal opening, the shielding portion gradually bends away from the first channel side.

[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 open one of the first channel and the second channel and close the other, 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 is based on the position adjustment of the blocking member to achieve different air intake modes. When the blocking member changes its position in the tube body, the side opening and the distal opening can be switched. 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 by adjusting the position of the blocking member, 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] On the other hand, through the cooperation between the sealing member and the blocking member, the first channel and the proximal opening can be effectively blocked when the insertion portion is already present in the first channel. In this way, there is no need to withdraw the insertion portion from the tube body in an emergency, which buys a certain amount of time for an emergency and further simplifies the operation steps of the tracheal tube. 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 is a cross-sectional view of the blocking member in some embodiments of the present application in the first state Figure 1 ;

[0024] Figure 4 is a partial cross-sectional view of the blocking member in some embodiments of the present application in the first state Figure 1 ;

[0025] Figure 5 is a partial cross-sectional view of the blocking member in some embodiments of the present application in the second state Figure 1 ;

[0026] Figure 6 is a partial cross-sectional view of the blocking member of some embodiments of the present application in the second state with the insertion portion located in the first through hole;

[0027] Figure 7 is a cross-sectional view of the blocking member in some embodiments of the present application in the first state Figure 2 ;

[0028] Figure 8 is a partial cross-sectional view of the blocking member in some embodiments of the present application in the first state Figure 2 ;

[0029] Fig. 9 is a partial cross-sectional view of the blocking member in some embodiments of the present application in the second state Figure 2 ;

[0030] Fig.10 is a schematic diagram of a state in which the blocking member of some embodiments of the present application is in a first state and the insertion portion is located in the first through hole;

[0031] Fig.11 is a schematic diagram of a state in which the blocking member of some embodiments of the present application is in the second state and the insertion portion is located in the third through hole;

[0032] Fig.12 is a cross-sectional view of the blocking member in some embodiments of the present application in the first state Figure 3 ;

[0033] Fig.13 is a partial cross-sectional view of the blocking member in some embodiments of the present application in the first state Figure 3 ;

[0034] Fig.14 is a partial cross-sectional view of the blocking member in some embodiments of the present application in the second state Figure 3 .

[0035] The markings in the figure are:

[0036] 100, tube body; 110, proximal opening; 120, distal opening; 130, side opening; 140, first channel; 150, second channel; 160, first balloon; 170, second balloon; 180, catheter; 200, blocking member; 210, blocking portion; 211, first through hole; 212, second through hole; 213, third through hole; 213a, guiding slope; 214, accommodating groove; 220, sliding portion; 230, push-pull portion; 300, sealing member; 400, mounting portion; 410, sliding cavity; 420, limiting slide groove; 500, first rubber portion; 600, second rubber portion; 700, shielding portion; 800, insertion portion; 900, hose. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] The following is combined with Figure 1 to Figure 14 , a channel switching component and tracheal tube provided by the present application are described in detail through specific embodiments and their application scenarios.

[0046] The first aspect of this embodiment provides a detailed description of the channel switching component.

[0047] 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 800 of the endoscope or other instruments into the tube body 100 through the proximal opening 110, 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 800 of the endoscope or the instrument 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 800 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 800 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 wall of the tube body 100 close to the distal opening 120 .

[0048] Exemplarily, the tube body 100 is provided with a first channel 140 and a second channel 150 which are separated from each other. The proximal end of the first channel 140 can be connected to the proximal opening 110 and the distal end can be connected to the distal opening 120. The proximal end of the second channel 150 can be connected to the proximal opening 110 and the distal end can be connected to the side opening 130. The first channel 140 is used for inserting the insertion part 800 of the endoscope. Further, the inner diameter of the first channel 140 is larger than the inner diameter of the second channel 150. Since the insertion part 800 extends from the side of the distal opening 120 through the first channel 140, the first channel 140 is the main insertion channel of the tube body 100 and is used for inserting most instruments during surgery.

[0049] Exemplary, combined Figure 1 , Figure 2 and Figure 3 The tube body 100 is provided with a first balloon 160, a second balloon 170 and a catheter 180, wherein the catheter 180 is used to provide a gas filling and / or exhausting channel for the first balloon 160, and the catheter 180 is also used to provide a gas filling and / or exhausting channel for the second balloon 170. Exemplarily, the second balloon 170 is arranged at the distal end of the first balloon 160. By inflating the first balloon 160 and the second balloon 170, both can be expanded, so that the endotracheal tube is fixed in the trachea. Exemplarily, the first balloon 160 and the second balloon 170 can be inflated or exhausted at the same time, or they can be inflated or exhausted separately.

[0050] 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.

[0051] The channel switching assembly of this embodiment includes a blocking member 200 and a sealing member 300. Figure 3 , Figure 4 The blocking member 200 is movably disposed on the tube body 100, and is used to block the first channel 140 or the second channel 150, so that one of the first channel 140 and the second channel 150 is disconnected from the proximal opening 110, and the other is connected to the proximal opening 110. Further, the sealing member 300 is disposed on the blocking member 200, and the sealing member 300 is used to cooperate with the blocking member 200 to disconnect the first channel 140 from the proximal opening 110 when the insertion portion 800 is located in the first channel 140.

[0052] Exemplarily, the blocking member 200 moves in the tube body 100. Of course, the blocking member 200 can also rotate in the tube body 100, and can be selected for use according to the specific surgical scenario. It should be noted that before initial use, the blocking member 200 is set by default to disconnect the proximal opening 110 from the second channel 150, and connect the first channel 140 to the proximal opening 110. During subsequent use, the blocking member 200 is moved, and then switched to connect the proximal opening 110 to the second channel 150 according to the specific situation of the operation, and the proximal opening 110 is disconnected from the first channel 140.

[0053] On this basis, there will be occlusion switching modes corresponding to the following surgical situations.

[0054] 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 160 and the second balloon 170 are inflated through the catheter 180, so that the first balloon 160 and the second balloon 170 gradually expand from a contracted state to an inflated state. During the expansion process, the first balloon 160 in the main trachea will apply 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 170 in the tracheal tube will apply 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 160 and the second balloon 170, 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, it is recommended to set the side opening 130 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 160 and the second balloon 170.

[0055] 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 160 and the second balloon 170 are first inflated to fix the tube body 100 in the human bronchus, and at the same time, the second balloon 170 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, move the blocking member 200 and allow the blocking member 200 to move in the tube body 100, so that the first channel 140 is disconnected from the proximal opening 110, and the second channel 150 is connected to the proximal opening 110. Since the first channel 140 is in a blocked state after being disconnected from the proximal opening 110, the distal opening 120 is also in a blocked state, while the second channel 150 is in a connected state, and the side opening 130 is also in an open state. In this way, the trachea connected to the affected lung can be completely blocked, making it easier to stop bleeding. In the above-mentioned surgical scenario, after the tube body 100 is fixed in the main trachea by inflating the first balloon 160 and the second balloon 170, only one action is required to open the side opening 130 and close the distal opening 120.

[0056] 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 160 and the second balloon 170, and then the first balloon 160 and the second balloon 170 are inflated to block both sides of the bleeding site in the main trachea. Since the blocking member 200 is set by default to block the side opening 130 and open the distal opening 120, there is no need to operate the blocking member 200, and the operating steps in this case are similar to those in Case 1.

[0057] Case 4: When the affected lung needs surgery, the inner wall of the junction of the two tracheae 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 can be performed. There are two options at this time. The first is to continue to extend the tube body 100 into the trachea connected to the affected lung, and the second is to extend the tube body 100 into the trachea connected to the healthy lung. Since the blocking member 200 is set by default to block the side opening 130 and open the distal opening 120, there is no need to operate the blocking member 200. 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 trachea after avoiding the bleeding site, the human lungs can still achieve gas circulation.

[0058] Situation 5: When the affected lung needs surgery and the wall of the bronchus connected to the affected lung is accidentally scratched and bleeding occurs, and at this time the insertion part 800 has already extended from the distal opening 120 of the tube body 100 into the affected lung: At this time, the surgery must be terminated, and because time is urgent, it will take some time for the insertion part 800 to extend from the tube body 100, so the insertion part 800 is first kept in the current position, and then the bleeding site is blocked, and then the hemostasis operation is performed. In this case, the first balloon 160 and the second balloon 170 are inflated first to fix the tube body 100 in the human bronchus, and at the same time, the second balloon 170 also blocks the bronchus connected to the affected lung, so that the blood in the bleeding site of the bronchus wall connected to the affected lung is not easy to flow out. Next, the blocking member 200 is moved and moved in the tube body 100, so that the first channel 140 is disconnected from the proximal opening 110, and the second channel 150 is connected to the proximal opening 110. Since the first channel 140 is in a blocked state after being disconnected from the proximal opening 110, the distal opening 120 is also in a blocked state, while the second channel 150 is in a connected state, and the side opening 130 is also in an open state. In this way, the airway connected to the affected lung can be completely blocked, which is convenient for hemostasis. It is worth noting that in the above operation, due to the existence of the insertion part 800, when the blocking member 200 blocks the first channel 140, the sealing member 300 will cooperate with the blocking member 200 to block the first channel 140 with the insertion part 800, so that the insertion part 800 does not need to be taken out of the first channel 140 to perform the blocking operation on the first channel 140, which can greatly save the time of pulling out the insertion part 800 from the first channel 140, and provide more operating time for surgery in crisis situations.

[0059] It is known that the above situations are only listed for the convenience of understanding. In fact, there are other situations that may occur during the operation, which will not be described here one by one. However, it should be understood that by setting the blocking member 200 in the present application to select a blocking between the side opening 130 and the distal opening 120, the doctor can simplify the blocking control steps during clinical surgery and reduce the probability of misoperation in emergency surgery. At the same time, it can be known that no matter what kind of surgical scenario, the opening or closing of the side opening 130 and the distal opening 120 are mutually opposed, that is, if the side opening 130 needs to be opened, then the distal opening 120 is closed. If the side opening 130 needs to be closed, then the distal opening 120 is open. Therefore, by allowing the blocking member 200 to select a blocking between the side opening 130 and the distal opening 120, various surgical situations can be effectively dealt with, the convenience of operation is improved, and the operation steps are simplified.

[0060] In some embodiments, in combination Figure 4 , Figure 5 as well as Figure 6 The blocking member 200 includes a blocking portion 210, which is slidably disposed near the proximal opening 110 of the tube body 100. The blocking portion 210 is penetrated by a first through hole 211 and a second through hole 212, and the insertion portion 800 can extend to the distal opening 130 through the first through hole 211. The blocking portion 210 can be switched to at least a first state and a second state during the sliding process. Exemplarily, when the blocking member 200 is switched to the first state, the first through hole 211 connects the proximal opening 110 with the first channel 140, and the second channel 150 is disconnected from the proximal opening 110 under the blocking effect of the blocking portion 210; when the blocking member 200 is switched to the second state, the second through hole 212 connects the proximal opening 110 with the second channel 150, and the first channel 140 is disconnected from the proximal opening 110 under the blocking effect of the blocking portion 210.

[0061] Exemplarily, the tube body 100 is provided with a mounting portion 400 near the proximal opening 110, and the mounting portion 400 has a sliding cavity 410 connected to the tube body 100, and the blocking portion 210 is slidably sealed with the sliding cavity 410; Exemplarily, when the blocking member 200 is switched to the first state, the first through hole 211 is located in the tube body 100, and the second through hole 212 is located in the sliding cavity 410; when the blocking member 200 is switched to the second state, the second through hole 212 is located in the tube body 100, and the first through hole 211 is located in the sliding cavity 410. Exemplarily, the mounting portion 400 can be integrally formed and then sleeved on the tube body 100. Alternatively, the mounting portion 400 can also be spliced ​​by two symmetrically arranged mounting sub-parts, which can improve the convenience of installation between the mounting portion 400 and the tube body 100, and when the mounting portion 400 is damaged, the mounting portion 400 can also be easily disassembled for replacement.

[0062] With such a configuration, when the blocking member 200 is switched to the first state, the second through hole 212 is in the sliding cavity 410, and the port of the second through hole 212 toward the proximal opening 110 is blocked by the inner side wall of the sliding cavity 410, so that the passage between the second channel 150 and the proximal opening 110 is directly disconnected. Similarly, when the blocking member 200 is switched to the second state, the first through hole 211 is in the sliding cavity 410, and the port of the first through hole 211 toward the proximal opening 110 is blocked by the inner side wall of the sliding cavity 410, so that the passage between the first channel 140 and the proximal opening 110 is directly disconnected. With such a configuration, the switching between the first state and the second state can be realized more conveniently by only pushing and pulling the blocking portion 210 in the sliding cavity 410. Furthermore, the thickness of the blocking portion 210 is consistent with the height of the sliding cavity 410 , and the blocking portion 210 is configured as a polytetrafluoroethylene plate, which can improve the sealing effect while being able to slide smoothly in the sliding cavity 410 .

[0063] In some optional embodiments, such as Figure 4 , Figure 5 as well as Figure 6 As shown, the blocking portion 210 and the second channel 150 are spaced apart, and a retractable hose 900 is connected between the second through hole 212 of the blocking portion 210 and the second channel 150, that is, the port of the second through hole 212 toward the proximal opening 110 is open, and the port of the second through hole 212 toward the distal opening 120 is connected with the port of the second channel 150 through the hose 900. In addition, an accommodation space for the hose 900 to move into is reserved on one side of the hose 900 in the mounting portion 400. With such a configuration, when the blocking member 200 switches to the first state, the second through hole 212 is in the sliding cavity 410, and the port of the second through hole 212 toward the proximal opening 110 is sealed and blocked by the inner side wall of the moving cavity, while the port of the second through hole toward the distal opening 120 is connected to the second channel 150 through the hose 900, so the hose 900 will directly follow the movement of the blocking portion 210 and partially enter the accommodating space, making the hose 900 less likely to be squeezed. Exemplarily, the length of the hose 900 is greater than the straight-line distance between the port of the second through hole 212 toward the distal opening 120 and the port of the second channel 150 near the proximal opening 110, so as to avoid the situation where the blocking portion 210 moves and pulls the hose 900 off.

[0064] Exemplarily, a plurality of circles of steel sleeves are sleeved on the outer wall of the hose 900 , so as to prevent the hose 900 from being folded during the movement of the blocking portion 210 and thus affecting the flow of gas in the hose 900 .

[0065] In some optional embodiments, combined with Figure 7 , Figure 8 as well as Fig. 9 , a notch (not shown in the figure) is reserved for the blocking part 210 to pass through at the position of the second channel 150 facing the blocking part 210, that is, when the blocking part 210 normally slides in the sliding cavity 410, it can cross the second channel 150 through the notch, and the height of the notch is consistent with the thickness of the blocking part 210. Further, the inner diameter of the second through hole 212 is the same as the inner diameter of the second channel 150. When the blocking member 200 switches to the second state, the second through hole 212 and the second channel 150 face each other in the axial direction of the tube body 100, and the first through hole 211 is located in the sliding cavity 410 and disconnected from the tube body 100; when the blocking member 200 switches to the first state, the first through hole 211 moves out of the sliding cavity 410 and communicates with the first channel 140, while the second through hole 212 moves into the sliding cavity 410 and disconnects from the tube body 100.

[0066] In some embodiments, Fig. 9 , Fig.10 as well as Fig.11 As shown, the blocking portion 210 is also penetrated by a third through hole 213 communicating with the first through hole 211, and the first rubber portion 500 is embedded in the third through hole 213. Exemplarily, the inner diameter of the first through hole 211 is greater than the outer diameter of the insertion portion 800, so that the insertion portion 800 can normally pass through the first through hole 211 and extend into the affected lung from the distal opening 120 of the tube body 100 when the blocking member 200 switches to the first state. Further, when the insertion portion 800 passes through the first through hole 211, in the process of the blocking member 200 switching from the first state to the second state, the blocking portion 210 enters the third through hole 213, and the first rubber portion 500 is deformed under the squeezing action of the insertion portion 800 to circumferentially seal and cover the insertion portion 800 in the third through hole 213. Exemplarily, the first rubber portion 500 is made of medical rubber. For example, silicone rubber, natural rubber, nitrile rubber, fluororubber, thermoplastic elastomer, polyurethane rubber and isoprene rubber.

[0067] Exemplarily, the third through hole 213 has symmetrical guiding slopes 213a, and along the moving direction of the blocking portion 210, the distance between the two guiding slopes 213a gradually increases from the side away from the first through hole 211 to the side close to the first through hole 211, so that when the blocking portion 210 moves, the insertion portion 800 is squeezed against the first rubber portion 500, and the portions of the first rubber portion 500 located on both sides of the insertion portion 800 are circumferentially covered on the back side of the insertion portion 800 under the guidance of the guiding slopes 213a.

[0068] With such arrangement, when the insertion part 800 passes through the first through hole 211 and extends into the affected lung through the distal opening 120 for surgery, if an emergency surgery occurs, such as bronchial bleeding, immediate hemostasis is required. At this time, if it is too late to withdraw the insertion part 800 from the tube body 100, the insertion part 800 can be left at the current position, and the blocking part 210 can be directly operated, that is, the blocking member 200 is switched from the first state to the second state. In this process, the blocking part 210 will slide into the sliding cavity, that is, the first through hole 211 will gradually enter the sliding cavity. At this time, since the insertion part 800 is in a fixed position, the first through hole 211 and the insertion part 800 will move relative to each other, and then the insertion part 800 will gradually and passively enter the third through hole 213 with the movement of the blocking part 210. At this time, since the first rubber part 500 is provided in the third through hole 213, the first rubber part 500 will be relatively squeezed with the insertion part 800, and the first rubber part 500 will be squeezed and deformed under the action of its own elastic extension force, so that the part where the first rubber part 500 and the insertion part 800 are squeezed moves and deflects from both sides of the insertion part 800. Since both sides of the insertion part 800 are guide slopes 213a, under the dual blocking action of the guide slopes 213a and the insertion part 800, the part of the first rubber part 500 squeezed to the two sides of the insertion part 800 will spread from the guide slopes 213a to the back side of the insertion part 800 away from the first rubber part 500 until the circumference of the insertion part 800 is completely wrapped, so that when the insertion part 800 is in the third through hole 213, the gap between the insertion part 800 and the third through hole 213 is completely sealed by the deformed first rubber part 500, and then when the insertion part 800 exists in the tube body 100, the first channel 140 can still be blocked under the action of the blocking member 200 and the sealing member 300, so that the proximal opening 110 of the tube body 100 is separated from the first channel 140.

[0069] It is worth noting that since the symmetrical inclined surfaces are symmetrically arranged, the symmetrical inclined surfaces have a correcting effect on the insertion part 800 during the process of the insertion part 800 gradually entering the third through hole 213, that is, the insertion part 800 will be affected by the two symmetrical inclined surfaces in the third through hole 213 and gradually reset to the middle part of the third through hole 213, so that the extrusion force distribution of the first rubber part 500 on both sides of the insertion part 800 is more uniform, and the first rubber part 500 can better circumferentially cover the insertion part 800 under the action of deformation.

[0070] In some optional embodiments, combined with Fig. 9 , Fig.10 as well as Fig.11A second rubber portion 600 is provided in the mounting portion 400, and a receiving groove 214 is provided on a side of the first through hole 211 away from the third through hole 213. When the blocking member 200 is switched to the first state, the second rubber portion 600 is located in the receiving groove 214; illustratively, along the moving direction of the blocking portion 210, the second rubber portion 600 is directly opposite to the first rubber portion 500, and when the blocking member 200 is switched from the first state to the second state, the second rubber portion 600 circumferentially covers the back side of the insertion portion 800 away from the first rubber portion 500.

[0071] Furthermore, the second rubber part 600 is also made of medical rubber, such as silicone rubber, natural rubber, nitrile rubber, fluororubber, thermoplastic elastomer, polyurethane rubber, isoprene rubber, etc. In this way, through the matching relationship between the first rubber part 500 and the second rubber part 600, when the plugging member 200 switches from the first state to the second state, the circumference of the insertion part 800 can be covered by the first rubber part 500 and the second rubber part 600 at the same time, so that the gap between the third channel and the insertion part 800 is completely blocked, so as to improve the partition sealing performance when the plugging member 200 is in the second state and the insertion part 800 is located in the third through hole 213.

[0072] Exemplarily, the receiving groove 214 is arc-shaped, and the second rubber part 600 is also arc-shaped. At the same time, in the natural state, the side of the first rubber part 500 close to the second rubber part 600 is also arc-shaped. That is, when the blocking member 200 is in the first state, the first rubber part 500, the first through hole 211 and the second rubber part 600 form a complete circular hole, and the inner diameter of the circular hole is matched with the inner diameter of the tube body 100 to facilitate the insertion of the insertion part 800 or other surgical instruments.

[0073] In some embodiments, in combination Fig.12 , Fig.13, the blocking member 200 also includes a sliding portion 220, and the inner wall of the sliding cavity 410 is provided with a limiting slide groove 420 that slides with the sliding portion 220, and the limiting slide groove 420 has a first end and a second end. Exemplarily, the first end and the second end are respectively the two ends of the limiting slide groove 420 in its own length direction. Exemplarily, when the blocking member 200 is in the first state, the sliding portion 220 and the first end of the limiting slide groove 420 are limited and stopped, and when the blocking member 200 is in the second state, the sliding portion 220 and the second end of the limiting slide groove 420 are limited and stopped. Such a setting makes the switching of the blocking member 200 between the first state and the second state more accurate, that is, when the operator operates the blocking portion 210 to move in the sliding cavity 410, as long as the operator feels that the blocking portion 210 is restricted during the movement and cannot continue to move, it can be judged that the blocking member 200 is already in the first state or the second state. At the same time, the stop cooperation between the limiting sliding groove 420 and the sliding portion 220 can also prevent the blocking portion 210 from escaping from the sliding cavity 410 .

[0074] Exemplary, combined Figure 4 , Figure 5 as well as Figure 6 , the blocking member 200 further includes a push-pull portion 230, which is disposed at one end of the blocking portion 210 away from the mounting portion 400, wherein the push-pull portion 230 gradually moves away from the mounting portion 400 during the process of the blocking member 200 switching from the first state to the second state. That is to say, when the blocking member 200 is in the first state, if it is necessary to switch to the second state, the push-pull portion 230 needs to be pulled out of the mounting portion 400 instead of continuing to be pushed into the mounting portion 400. With such a configuration, it is possible to prevent the doctor from accidentally touching the blocking member 200 during the operation and causing the state switching. Because during the clinical operation, it is easy for the doctor's hand to apply a thrust to the blocking member 200, which can easily lead to an accidental touch. To apply a pulling force to the blocking member 200, it is necessary to deliberately pull the push-pull portion 230. At the same time, in most clinical operations, the blocking member 200 is required to be in the first state so that the insertion portion 800 can pass through the first channel 140 normally and extend from the distal opening 120 to the affected lung. Therefore, this arrangement prevents the blocking member 200 from being accidentally touched in most surgical situations.

[0075] In some optional embodiments, when the blocking member 200 switches from the first state to the second state, the push-pull portion 230 gradually approaches the mounting portion 400. That is, when the blocking member 200 is in the first state, if it is necessary to switch to the second state, it is necessary to continue to push the push-pull portion 230 into the mounting portion 400, rather than pulling the push-pull portion 230 outward from a position close to the mounting portion 400. With this arrangement, when the doctor needs to switch from the first state to the second state during surgery, it is easier to apply a thrust, which is not shown in the figure.

[0076] Exemplarily, the push-pull portion 230 is always located outside the mounting portion 400 , and the push-pull portion 230 may be a push-pull ring, a push-pull handle, or other component that is convenient for the doctor to hold.

[0077] In some optional embodiments, such as Fig.14 As shown, a shielding portion 700 is provided at one end of the second channel 150 close to the proximal opening 110, and the shielding portion 700 is used to shield the port portion of the second channel 150; along the direction from the distal opening 120 to the proximal opening 110, the shielding portion 700 gradually bends away from the first channel 140. In this way, the shielding portion 700 can prevent the insertion portion 800 from being mistakenly inserted into the second channel 150 after entering the tube body 100. In addition, if the insertion portion 800 enters the tube body 100 from the proximal opening 110, and the insertion portion 800 conflicts with the shielding portion 700, due to the bending setting of the shielding portion 700, the insertion portion 800 can be guided into the first channel 140, so that the insertion portion 800 automatically deviates from the shielding portion 700 to the first channel 140 during the continued insertion process, so as to improve the smoothness of the insertion portion 800 in the tube body 100.

[0078] The second aspect of this embodiment provides a detailed description of the endotracheal tube.

[0079] Please refer to Figure 1 , Figure 2 as well as Figure 3 The 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.

[0080] 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.

[0081] 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 assembly, used for a tube body (100) of 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 tube body (100) is provided with a first channel (140) and a second channel (150) which are isolated from each other. The proximal end of the first channel (140) can be connected to the proximal opening (110) and the distal end can be connected to the distal opening (120). The proximal end of the second channel (150) can be connected to the proximal opening (110) and the distal end can be connected to the side opening (130). The first channel (140) is used for inserting an insertion portion (800) of an endoscope. The channel switching assembly comprises a blocking member (200), the blocking member (200) being movably disposed on the tube body (100) and used to block the first channel (140) or the second channel (150), so that one of the first channel (140) and the second channel (150) is disconnected from the proximal opening (110) and the other is connected to the proximal opening (110); The channel switching assembly further comprises a sealing member (300), wherein the sealing member (300) is arranged on the blocking member (200), and the sealing member (300) is used to cooperate with the blocking member (200) to disconnect the first channel (140) from the proximal opening (110) when the insertion portion (800) is located in the first channel (140); The blocking member (200) comprises a blocking portion (210), the blocking portion (210) being slidably disposed at a position of the tube body (100) near the proximal opening (110), the blocking portion (210) being penetrated by a first through hole (211) and a second through hole (212), and the insertion portion (800) being extendable to the distal opening (130) through the first through hole (211), and the blocking portion (210) being switchable to at least a first state and a second state during the sliding process, wherein when the blocking member (200) is switched to the first state, the first through hole (211) is connected to the proximal opening (110) and the first channel (140), and the second channel (150) and the proximal opening (110) are disconnected under the blocking action of the blocking portion (210); When the blocking member (200) is switched to the second state, the second through hole (212) connects the proximal opening (110) and the second channel (150), and the first channel (140) and the proximal opening (110) are disconnected under the blocking action of the blocking portion (210).

2. The channel switching component according to claim 1, characterized in that: The tube body (100) is provided with a mounting portion (400) near the proximal opening (110), the mounting portion (400) having a sliding cavity (410) in communication with the tube body (100), and the blocking portion (210) is in sliding sealing cooperation with the sliding cavity (410); When the blocking member (200) is switched to a first state, the first through hole (211) is located in the tube body (100), and the second through hole (212) is located in the sliding cavity (410); when the blocking member (200) is switched to a second state, the second through hole (212) is located in the tube body (100), and the first through hole (211) is located in the sliding cavity (410).

3. The channel switching assembly according to claim 2, characterized in that: The blocking portion (210) is further provided with a third through hole (213) communicating with the first through hole (211), and the first rubber portion (500) is embedded in the third through hole (213); When the insertion portion (800) passes through the first through hole (211), during the process of the blocking member (200) switching from the first state to the second state, the blocking portion (210) enters the third through hole (213), and the first rubber portion (500) is deformed under the squeezing action of the insertion portion (800) to circumferentially seal the insertion portion (800) within the third through hole (213).

4. The channel switching assembly according to claim 3, characterized in that: The third through hole (213) has symmetrical guiding slopes (213a), and along the moving direction of the blocking portion (210), the distance between the two guiding slopes (213a) gradually increases from the side away from the first through hole (211) to the side close to the first through hole (211), so that when the blocking portion (210) moves, the insertion portion (800) and the first rubber portion (500) are squeezed, and the portions of the first rubber portion (500) located on both sides of the insertion portion (800) are circumferentially covered on the back side of the insertion portion (800) under the guidance of the guiding slopes (213a).

5. The channel switching assembly according to claim 3, characterized in that: A second rubber portion (600) is provided in the mounting portion (400); a receiving groove (214) is provided on a side of the first through hole (211) away from the third through hole (213); when the blocking member (200) is switched to the first state, the second rubber portion (600) is located in the receiving groove (214); Along the moving direction of the blocking portion (210), the second rubber portion (600) is directly opposite to the first rubber portion (500), and when the blocking member (200) switches from the first state to the second state, the second rubber portion (600) circumferentially covers the back side of the insertion portion (800) facing away from the first rubber portion (500).

6. The channel switching component according to any one of claims 2 to 5, characterized in that: The blocking member (200) further comprises a sliding portion (220), the inner wall of the sliding cavity (410) is provided with a limiting sliding groove (420) slidably matched with the sliding portion (220), and the limiting sliding groove (420) has a first end and a second end; When the blocking member (200) is in the first state, the sliding portion (220) and the first end of the limiting sliding groove (420) are in a limiting stop state, and when the blocking member (200) is in the second state, the sliding portion (220) and the second end of the limiting sliding groove (420) are in a limiting stop state.

7. The channel switching assembly according to any one of claims 2 to 5, characterized in that: The blocking member (200) further comprises a push-pull portion (230), wherein the push-pull portion (230) is disposed at an end of the blocking portion (210) away from the mounting portion (400), wherein, during the process of the blocking member (200) switching from the first state to the second state, the push-pull portion (230) gradually moves away from the mounting portion (400); or, during the process of the blocking member (200) switching from the first state to the second state, the push-pull portion (230) gradually moves closer to the mounting portion (400).

8. The channel switching assembly according to any one of claims 2 to 5, characterized in that: A shielding portion (700) is provided at one end of the second channel (150) close to the proximal opening (110), and the shielding portion (700) is used to partially shield the port of the second channel (150); along the direction from the distal opening (120) to the proximal opening (110), the shielding portion (700) gradually bends towards a side away from the first channel (140).

9. 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 1-8.

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