Joint control switch assembly and tracheal tube

Abstract

The present invention provides a joint control switching assembly and an endotracheal tube, which relate to the field of medical device technology. The joint control switching assembly of the present invention is used for the tube body of an endotracheal tube, the tube body having a distal opening, a proximal opening and a side opening, the side opening being close to the distal opening, the joint control switching assembly comprising a blocking member and a driving member, the blocking member being movably arranged on the tube body, and being used to block the side opening or the distal opening, so that one of the side opening and the distal opening is in an open state and the other is in a closed state; the driving member is installed on the tube body, and the driving member is used to drive the blocking member to move on the tube body, so as to switch the open and closed state of the side opening or the distal opening. 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 joint control switching component and a single-lumen endotracheal 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 rather complicated. Summary of the invention

[0004] In order to improve the problem of complicated operation during endotracheal tube occlusion control, the present application provides a joint control switching component and a single-lumen endotracheal tube.

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

[0006] A joint control 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 side opening being close to the distal opening, the joint control switching assembly comprising: a blocking member movably arranged on the tube body, used to block the side opening or the distal opening, so that one of the side opening and the distal opening is in an open state and the other is in a closed state; a driving member installed on the tube body, the driving member being used to drive the blocking member to move on the tube body to switch the open and closed state of the side opening or the distal opening.

[0007] Preferably, the driving member comprises a vent pipe, and after gas is introduced into the vent pipe, a squeezing force is generated on the blocking member to drive the blocking member to move in the tube body.

[0008] Preferably, the blocking member includes an airbag, which is connected to the ventilation tube and has at least a first state and a second state, wherein when the airbag is in the first state, the airbag blocks the side opening, and when the airbag is in the second state, the airbag blocks the distal opening; when gas is introduced into the ventilation tube, the airbag switches from the first state to the second state.

[0009] Preferably, the airbag has a sealing portion, and when the airbag is in a first state, the airbag forms a folded portion, and the folded portion applies a thrust to the sealing portion so that the sealing portion is pressed against a position to close the side opening; when the airbag is in a second state, the airbag is in an inflated state and moves the sealing portion away from the side opening.

[0010] Preferably, the tube body has a first accommodating groove and a second accommodating groove, the first accommodating groove is arranged at the outer periphery of the side opening and is for the sealing part to be placed therein, the second accommodating groove is connected to one side of the first accommodating groove, and the second accommodating groove is used to accommodate the airbag in the first state, and the folded part applies a thrust to the sealing part so that an end of the sealing part away from the folded part is pressed against the inner wall of the first accommodating groove.

[0011] Preferably, the airbag has a connecting side and an inflating side, the connecting side is connected to the inner wall of the tube body, the sealing portion is arranged on the inflating side, and when the airbag switches from a first state to a second state, the inflating side moves relative to the connecting side in a direction away from the side opening to drive the sealing portion away from the side opening and open the side opening.

[0012] Preferably, the airbag comprises a first annular sac and a second annular sac connected axially, the first annular sac and the second annular sac are both axially penetrated by a channel communicating with the inner cavity of the tube body, and the ventilation tube is connected to the first annular sac;

[0013] The first annular sac is fixed in the tube body between the side opening and the distal opening. When the airbag is in a first state, the second annular sac is sealed and fitted with the side opening. When the airbag is in a second state, the first annular sac and the second annular sac are both staggered with the side opening, and at the same time the first annular sac is driven to inflate and block the distal opening.

[0014] Preferably, the first annular sac has an inner membrane and an outer membrane, and an inflation cavity connected to the ventilation tube is formed between the inner membrane and the outer membrane. When the ventilation tube introduces gas into the inflation cavity, the two opposite membrane walls of the inner membrane are deformed in a direction approaching each other until they fit together, so as to block the channel in the first annular sac.

[0015] Preferably, both ends of the first annular sac and the second annular sac are provided with annular connecting parts, the annular connecting part of the first annular sac away from the side opening is fixed to the inner wall of the tube body, and the other annular connecting parts are slidably and sealedly matched with the inner wall of the tube body; the inner membrane is a flexible diaphragm, and when the ventilation tube introduces gas into the inflation cavity, the inner membrane deforms to generate a pulling force acting on the second annular sac, so as to drive the second annular sac to approach the first annular sac and move away from the side opening.

[0016] In a second aspect, the present application provides a tracheal tube, which adopts the following technical solution:

[0017] 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 joint control switching assembly, and the joint control switching assembly is the joint control switching assembly described in any of the above technical solutions.

[0018] The present invention has the following advantages and beneficial effects:

[0019] The joint control 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 joint control switching assembly of the present invention switches the state of the side opening and the distal opening based on the driving of the driving member. Due to the action of the driving member, when the blocking member is driven by the driving force of the driving member, it can move in the tube body and achieve the switching of the side opening and the distal opening state. That is, the joint control 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. 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 It is a schematic diagram of the structure of some embodiments of the present application;

[0022] Figure 2 is a cross-sectional view of some embodiments of the present application Figure 1 ;

[0023] Figure 3 is a cross-sectional view of some embodiments of the present application Figure 2 ;

[0024] Figure 4 yes Figure 2 A magnified view of part A in FIG.

[0025] Figure 5 yes Figure 3 A magnified view of part B in FIG.

[0026] Figure 6 is a cross-sectional view of the structure of an airbag for displaying some embodiments of the present application;

[0027] Figure 7 This is a cross-sectional view of the structure of some embodiments of the present application for showing the interior of the airbag Figure 1 ;

[0028] Figure 8 This is a cross-sectional view of the structure of some embodiments of the present application for showing the interior of the airbag Figure 2 ;

[0029] Fig. 9 yes Figure 8 Enlarged view of section C in .

[0030] The markings in the figure are:

[0031] 100, tube body; 110, proximal opening; 120, distal opening; 130, side opening; 140, first accommodating groove; 150, second accommodating groove; 160, first balloon; 170, second balloon; 180, catheter; 200, blocking member; 210, airbag; 211, blocking portion; 212, connecting side; 213, inflation side; 214, first annular capsule; 2141, inner membrane; 2142, outer membrane; 2143, inflation cavity; 215, second annular capsule; 216, channel; 217, annular connecting portion; 218, folded portion; 300, driving member; 310, ventilation tube. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] In summary, how to improve the existing single-lumen endotracheal tube to simplify the operation steps and improve its applicability in emergency situations has become a technical problem that urgently needs to be solved in the field of medical devices.

[0040] Based on this, the present application provides a joint control switching assembly and a tracheal tube, which 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.

[0041] The following is combined with Figure 1 to Figure 9 , a joint control switching component and tracheal tube provided by the present application are described in detail through specific embodiments and their application scenarios.

[0042] The first aspect of this embodiment provides a detailed description of the joint control switching component.

[0043] Reference Figure 1~Figure 2 , a joint control 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.

[0044] Exemplarily, 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 discharge channel for the first balloon 160, and the catheter 180 is also used to provide a gas filling and / or discharge channel for the second balloon 170, such as Figure 2-Figure 3 As shown. 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, thereby fixing the endotracheal tube in the trachea. Exemplarily, the first balloon 160 and the second balloon 170 can be inflated or deflated at the same time, or can be inflated or deflated separately.

[0045] 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.

[0046] The joint control switching assembly of this embodiment includes a blocking member 200 and a driving member 300. Figure 2 , Figure 3 The blocking member 200 is movably disposed on the tube body 100, and is used to selectively block the side opening 130 or the distal opening 120, so that one of the side opening 130 and the distal opening 120 is in an open state and the other is in a closed state. Furthermore, the driving member 300 is also disposed on the tube body 100, and is used to drive the blocking member 200 to move on the tube body 100, so as to switch the opening and closing states of the side opening 130 and the distal opening 120. Exemplarily, the movement of the blocking member 200 on the tube body 100 can be movement or rotation.

[0047] Illustratively, before initial use, the blocking member 200 is set by default to block the side opening 130 and open the distal opening 120 . During subsequent use, the blocking member 200 is switched to open the side opening 130 and block the distal opening 120 through the drive of the drive member 300 .

[0048] On this basis, there will be occlusion switching modes corresponding to the following surgical situations.

[0049] 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.

[0050] 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, the driving member 300 is started to move the blocking member 200 on the tube body 100, that is, the blocking member 200 is moved from the position of blocking the side opening 130 to the position of blocking the distal opening 120, so that 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 160 and the second balloon 170, only one action is required to open the side opening 130 and close the distal opening 120.

[0051] 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 driving member 300, and the operating steps in this case are similar to those in Case 1.

[0052] 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 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 drive member 300. 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.

[0053] 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 the setting of the drive member 300 in the present application driving the blocking member 200 to select a blocking between the side opening 130 and the distal opening 120 can allow doctors to simplify the steps of blocking control 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, the blocking member 200 can be driven by the drive member 300, so that the blocking member 200 can select a blocking between the side opening 130 and the distal opening 120, thereby effectively coping with various surgical situations, improving the convenience of operation, and simplifying the operation steps.

[0054] In some embodiments, reference Figure 2 , Figure 4 The driving member 300 includes a vent pipe 310 , and after gas is introduced into the vent pipe 310 , a squeezing force is generated on the blocking member 200 to drive the blocking member 200 to move in the tube body 100 .

[0055] For example, an insertion port is provided on the tube wall of the tube body 100 near the proximal opening 110, and the ventilation tube 310 extends from the insertion port to the inside of the tube body 100 and directly reaches the position of the blocking member 200 along the length direction of the tube body 100. The proximal end of the ventilation tube 310 outside the tube body 100 can be connected to a ventilation device. In this way, the gas can be directly introduced to act on the blocking member 200, so that the blocking member 200 can move in the tube body 100.

[0056] Exemplarily, the vent tube 310 extends from the proximal opening 110 of the tube body 100 to the distal opening 120 along the length direction of the tube body 100, and the vent tube 310 is bonded to the outer wall of the tube body 100. In this way, the tube body 100 can always maintain a good straight state, and the ventilation efficiency of the vent tube 310 is improved.

[0057] In some embodiments, in combination Figure 2 , Figure 3 , Figure 4 as well as Figure 5, the blocking member 200 includes an airbag 210, which is connected to the vent tube 310 and has at least a first state and a second state. When the airbag 210 is in the first state, the airbag 210 expands and blocks the side opening 130; when the airbag 210 is in the second state, the airbag 210 expands and blocks the distal opening 120. When gas is introduced into the vent tube 310, the airbag 210 can be switched from the first state to the second state. Further, the inner cavity of the vent tube 310 is connected to the interior of the airbag 210, and gas is injected into the vent tube 310 through the ventilation device. After the gas enters the interior of the airbag 210 through the vent tube 310, the airbag 210 gradually expands to the target state. On the contrary, when the ventilation device performs a vacuum operation, the gas flows back from the airbag 210 through the vent tube 310 into the ventilation device, so that the airbag 210 gradually shrinks to the initial state. In this embodiment, the first state of the airbag 210 corresponds to the contracted state of the airbag 210 , and the second state of the airbag 210 corresponds to the expanded state of the airbag 210 .

[0058] In some embodiments, in combination Figure 4 , Figure 5 The airbag 210 has a blocking portion 211. When the airbag 210 is in the first state, the airbag 210 forms a folded portion 218, and the folded portion 218 applies a thrust to the blocking portion 211, so that the blocking portion 211 is pressed against a position to close the side opening 130. When the airbag 210 is in the second state, the airbag 210 is inflated and takes the blocking portion 211 away from the side opening 130. Exemplarily, the blocking portion 211 can be disposed inside the airbag 210 or outside the airbag 210.

[0059] In some embodiments, the sealing portion 211 is a sealing plate, and the area of ​​the sealing plate is larger than the opening area of ​​the side opening 130, so that the side opening 130 can be completely blocked by the sealing plate. At the same time, the sealing plate can be detachably covered on the side opening 130, so that it can be detached from the side opening 130 under the action of external force, or it can be more tightly pressed against the side opening 130 under the action of external force, which makes it easier to control the opening and closing of the side opening 130 in some surgical situations. The sealing plate is a plate made of sealing material. Exemplarily, the sealing plate can be but not limited to a silicone plate, a polyurethane plate, a polytetrafluoroethylene plate, a stainless steel plate, a composite material plate, etc. Further, when the sealing portion 211 is a sealing plate, the sealing portion 211 is bonded to the inside of the airbag 210.

[0060] For example, the blocking portion 211 may also be a rubber block, the cross-sectional area of ​​the rubber block is larger than the opening area of ​​the side opening 130, and the rubber block is squeezed and embedded in the side opening 130, so that the rubber block fills the side opening 130 under the action of its own extension force after being compressed, and the side opening 130 can also be blocked. Further, when the blocking portion 211 is a rubber block, the blocking portion 211 is arranged outside the airbag 210. It is known that the blocking portion 211 can also be other components, which will not be described in detail here.

[0061] In some embodiments, Figure 4 , Figure 5 As shown, the tube body 100 has a first accommodating groove 140 and a second accommodating groove 150. The first accommodating groove 140 is arranged on the outer periphery of the side opening 130 and is for the sealing portion 211 to be placed. The second accommodating groove 150 is connected to one side of the first accommodating groove 140, and the second accommodating groove 150 is used to accommodate the airbag 210 in the first state. The folded portion 218 applies a thrust to the sealing portion 211 so that the end of the sealing portion 211 away from the folded portion 218 is pressed against the inner wall of the first accommodating groove 140.

[0062] Exemplarily, the second receiving groove 150 is opened on the inner wall of the tube body 100 along the axial direction of the tube body 100. When the airbag 210 is in a contracted state, the airbag 210 will form a folded portion 218, which is adapted to the shape of the second receiving groove 150. After the folded portion 218 of the airbag 210 is inserted into the second receiving groove 150, the airbag 210 will have a diffusion force to restore the initial state. At this time, the airbag 210 is folded in a direction so that the diffusion force of the airbag 210 to restore the initial state directly acts on the blocking portion 211 along the length direction of the second receiving groove 150. At this time, the blocking portion 211 is pressed by the folded portion 218 of the airbag 210 and will be tightly abutted in the second receiving groove 150. Because before the initial use, the blocking portion 211 is set by default to block the side opening 130 and open the distal opening 120, the blocking portion 211 can be more stably in the second groove under the action of the folded portion 218.

[0063] In some embodiments, in combination Figure 4 , Figure 5The airbag 210 has a connection side 212 and an inflation side 213. The connection side 212 is connected to the inner wall of the tube body 100. The blocking portion 211 is provided on the inflation side 213. When the airbag 210 switches from the first state to the second state, the inflation side 213 moves relative to the connection side 212 in a direction away from the side opening 130, so as to drive the blocking portion 211 away from the side opening 130 and open the side opening 130. Exemplarily, when the airbag 210 is partially folded, the folded portion 218 of the airbag 210 is folded along the length direction of the second receiving groove 150. When the airbag 210 is inflated, the folded portion 218 of the airbag 210 escapes from the second receiving groove 150 and inflates along the radial direction of the tube body 100. Furthermore, when the airbag 210 is partially folded in the second receiving groove 150, the connection between the vent pipe 310 and the airbag 210 is located at the folded portion 218 of the airbag 210 and at the connection side 212 of the airbag 210. Furthermore, the moving direction of the connection between the vent pipe 310 and the airbag 210 after releasing the gas is along the radial direction of the tube body 100 and directly faces the inflated side 213 of the folded portion 218 of the airbag 210. In this way, after the airbag 210 is filled with gas through the vent pipe 310, the folded portion 218 of the airbag 210 will be expanded first, and the inflated side 213 of the airbag 210 will move toward the radial direction of the tube body 100 under the thrust of the inflation when the airbag 210 is inflated. In this case, the blocking portion 211 is no longer squeezed by the folded portion 218 of the airbag 210 , and as the inflated side 213 moves, the blocking portion 211 will easily detach from the second accommodating groove 150 so that the blocking portion 211 no longer blocks the side opening 130 .

[0064] It is worth noting that in this embodiment, when the airbag 210 is partially folded in the second receiving groove 150, the folded portion 218 of the airbag 210 can apply a squeezing force to the blocking portion 211, so that the blocking portion 211 can be more stably located in the second receiving groove 150 and block the side opening 130. When the vent pipe 310 is ventilated, the folded portion 218 of the airbag 210 can be quickly inflated, so that the blocking portion 211 can be more easily moved out of the second receiving groove 150, so that the side opening 130 is in an open state.

[0065] In some optional embodiments, such as Figure 6 , Figure 7 and Figure 8As shown, the airbag 210 includes an axially connected first annular capsule 214 and a second annular capsule 215, and the first annular capsule 214 and the second annular capsule 215 are axially penetrated with a hole 216 communicating with the inner cavity of the tube body 100, and the ventilation tube 310 is connected to the first annular capsule 214, so that when the surgical instrument is inserted into the tube body 100, the surgical instrument can directly pass through the hole 216 and extend from the distal opening 120 to reach the lesion site. Exemplarily, the first annular capsule 214 is fixed in the tube body 100 between the side opening 130 and the distal opening 120, and when the airbag 210 is in the first state, the second annular capsule 215 is sealed and fitted with the side opening 130; when the airbag 210 is in the second state, the first annular capsule 214 and the second annular capsule 215 are staggered with the side opening 130, and the first annular capsule 214 is driven to inflate and block the distal opening 120. Exemplarily, when the airbag 210 is in the first state, the outer wall of the second annular bag body 215 fits against the side opening 130 to block the side opening 130 .

[0066] For example, refer to Figure 8 , Fig. 9 The first annular capsule 214 has an inner membrane 2141 and an outer membrane 2142, and an inflation cavity 2143 connected to the vent tube 310 is formed between the inner membrane 2141 and the outer membrane 2142. When the vent tube 310 passes gas into the inflation cavity 2143, the two opposite membrane walls of the inner membrane 2141 are deformed in the direction of approaching each other until they fit together to block the channel 216 in the first annular capsule 214. Exemplarily, the inner membrane 2141 is a flexible diaphragm, and the flexible membrane is a film made of a flexible material. A flexible material refers to a material that can be deformed under the action of an external force and has soft and bendable properties. Exemplarily, the flexible film is a PLA film, a PVA film, a TPU film or a PLGA film, etc. Correspondingly, the outer membrane 2142 is a rigid diaphragm, and the rigid film is a film made of a hard material, which itself has poor ductility. Exemplarily, the rigid film is a polycarbonate film, a polyester film, or a polyimide film. Thus, when gas is introduced into the first annular capsule 214 through the vent pipe 310, the gas gradually increases in the first annular capsule 214, which drives the inner membranes 2141 located on both sides of the axis of the tube body 100 to approach each other until they fit together. It is worth noting that the inner membranes 2141 are in surface contact when they fit together, rather than line contact or point contact, which can improve the blocking effect of the channel 216, thereby improving the blocking effect of the distal opening 120.

[0067] For example, Figure 8 , Fig. 9As shown, both ends of the first annular capsule 214 and the second annular capsule 215 are provided with annular connecting parts 217, the annular connecting part 217 of the first annular capsule 214 away from the side opening 130 is fixed to the inner wall of the tube body 100, and the other annular connecting parts 217 are all slidably sealed with the inner wall of the tube body 100; illustratively, on the basis of the inner membrane 2141 being a flexible diaphragm, when gas is introduced into the inflation cavity 2143 through the vent 310, the inner membrane 2141 is deformed to generate a pulling force acting on the second annular capsule 215, so as to drive the second annular capsule 215 to approach the first annular capsule 214 and move away from the fitting side opening 130. illustratively, the outer diameter of the annular connecting part 217 is equal to the inner diameter of the tube body 100. Alternatively, the outer diameter of the annular connection portion 217 is greater than the inner diameter of the tube body 100. When the annular connection portion 217 is embedded in the tube body 100, the outer wall surface of the annular connection portion 217 will fit closely with the inner wall of the tube body 100 to improve the sealing effect between the two. Exemplarily, the material of the annular connection portion 217 can be polytetrafluoroethylene, polyurethane, rubber (such as fluororubber, silicone rubber), metal (such as bronze, stainless steel), carbon graphite and composite materials, preferably polytetrafluoroethylene. Polytetrafluoroethylene has a low friction force, so that the annular connection portion 217 can also achieve relative sliding with the tube body 100 after being fitted with the inner wall of the tube body 100. Exemplarily, perforations are provided on the annular connection portion 217, and the vent pipe 310 passes through a plurality of perforations in sequence and then extends into the inflation cavity 2143.

[0068] With such a configuration, when the side opening 130 needs to be opened and the distal opening 120 needs to be blocked, gas is introduced into the inflation cavity 2143 through the ventilation tube 310. After the inflation cavity 2143 expands, the two opposite inner walls of the inner membrane 2141 are driven to approach each other until they fit together. At this time, the two opposite inner walls of the inner membrane 2141 fit together and block the channel 216, thereby blocking the distal opening 120 of the tube body 100 from the side. In this process, after the inner membrane 2141 is subjected to the extrusion force by the filling of gas, the inner membrane 2141 generates an extrusion deformation and applies a pulling force to the annular connection portion 217 of the second annular capsule 215, so that the annular connection portion 217 of the second annular capsule 215 that is slidably matched with the inner wall of the tube body 100 moves toward the direction of approaching the first annular capsule 214, thereby causing the second annular capsule 215 to leave the side opening 130, and finally switching the side opening 130 from the closed state to the open state. Exemplarily, in order to increase the moving path of the second annular capsule 215 and avoid the situation that the moving path of the second annular capsule 215 is too small to open the side opening 130, a plurality of first annular capsules 214 can be coaxially provided, that is, the vent 310 can be simultaneously connected to the inflation chambers 2143 of a plurality of first annular capsules 214, and after the inner membranes 2141 on the plurality of inflation chambers 2143 are squeezed and deformed at the same time, the moving path length of the second annular capsule can be increased. Of course, when a plurality of first annular capsules 214 are provided, only the annular connecting portion 217 located closest to the distal opening 120 is fixedly connected to the inner wall of the tube body 100, and the rest are slidably sealed with the inner wall of the tube body 100.

[0069] The second aspect of this embodiment provides a detailed description of the endotracheal tube.

[0070] Please refer to Figure 1 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.

[0071] The tracheal tube of this embodiment further comprises a joint control switching component, which is the joint control switching component of any technical solution of this embodiment.

[0072] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0073] 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 joint control 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), the side opening (130) being close to the distal opening (120), characterized in that: The joint control switching component includes: a blocking member (200) movably disposed on the tube body (100) and used to block the side opening (130) or the distal opening (120), so that one of the side opening (130) and the distal opening (120) is in an open state and the other is in a closed state; a driving member (300) mounted on the tube body (100), the driving member (300) being used to drive the blocking member (200) to move on the tube body (100) so as to switch the opening and closing state of the side opening (130) or the distal opening (120); The driving member (300) comprises a vent pipe (310), and after gas is introduced into the vent pipe (310), a squeezing force is generated on the blocking member (200), so as to drive the blocking member (200) to move in the tube body (100); The blocking member (200) comprises an airbag (210), the airbag (210) being in communication with the ventilation tube (310), the airbag (210) having at least a first state and a second state, wherein when the airbag (210) is in the first state, the airbag (210) blocks the side opening (130), and when the airbag (210) is in the second state, the airbag (210) blocks the distal opening (120); when gas is introduced into the ventilation tube (310), the airbag (210) switches from the first state to the second state; The airbag (210) has a blocking portion (211). When the airbag (210) is in a first state, the airbag (210) forms a folded portion (218), and the folded portion (218) applies a thrust to the blocking portion (211) so that the blocking portion (211) is pressed against a position closing the side opening (130). When the airbag (210) is in a second state, the airbag (210) is in an inflated state and moves the blocking portion (211) away from the side opening (130).

2. The joint control switching component according to claim 1, characterized in that: The tube body (100) comprises a first accommodating groove (140) and a second accommodating groove (150); the first accommodating groove (140) is arranged on the outer periphery of the side opening (130) and is for the sealing portion (211) to be placed therein; the second accommodating groove (150) is arranged on one side of the first accommodating groove (140) and is used to accommodate the airbag (210) in a first state; the folded portion (218) applies a thrust to the sealing portion (211) so that an end of the sealing portion (211) away from the folded portion (218) is pressed against an inner wall of the first accommodating groove (140).

3. The joint control switching component according to claim 1 or 2, characterized in that: The airbag (210) comprises a connecting side (212) and an inflation side (213); the connecting side (212) is connected to the inner wall of the tube body (100); the blocking portion (211) is arranged on the inflation side (213); when the airbag (210) switches from a first state to a second state, the inflation side (213) moves relative to the connecting side (212) in a direction away from the side opening (130), so as to drive the blocking portion (211) away from the side opening (130) and open the side opening (130).

4. The joint control switching component according to claim 1, characterized in that: The airbag (210) comprises a first annular sac (214) and a second annular sac (215) which are axially connected, and a hole (216) which is in communication with the inner cavity of the tube body (100) is axially penetrated in both the first annular sac (214) and the second annular sac (215), and the ventilation tube (310) is in communication with the first annular sac (214); The first annular sac (214) is fixed in the tube body (100) between the side opening (130) and the distal opening (120); when the airbag (210) is in a first state, the second annular sac (215) is sealed and fitted with the side opening (130); when the airbag (210) is in a second state, the first annular sac (214) and the second annular sac (215) are both staggered with the side opening (130), and at the same time, the first annular sac (214) is driven to inflate and block the distal opening (120).

5. The joint control switching component according to claim 4, characterized in that: The first annular sac (214) comprises an inner membrane (2141) and an outer membrane (2142), wherein an inflation cavity (2143) communicating with the ventilation tube (310) is formed between the inner membrane (2141) and the outer membrane (2142); when gas is introduced into the inflation cavity (2143) through the ventilation tube (310), the two opposite membrane walls of the inner membrane (2141) are deformed in a direction approaching each other until they fit together, thereby blocking the pore (216) in the first annular sac (214).

6. The joint control switching component according to claim 5, characterized in that: Both ends of the first annular sac (214) and the second annular sac (215) are provided with annular connecting portions (217); the annular connecting portion (217) of the first annular sac (214) away from the side opening (130) is fixed to the inner wall of the tube body (100); and the remaining annular connecting portions (217) are in sliding sealing cooperation with the inner wall of the tube body (100); The inner membrane (2141) is a flexible diaphragm. When gas is introduced into the inflation chamber (2143) through the ventilation tube (310), the inner membrane (2141) deforms to generate a pulling force acting on the second annular sac (215), thereby driving the second annular sac (215) to approach the first annular sac (214) and move away from the side opening (130).

7. 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 tracheal tube further comprises a joint control switching component, and the joint control switching component is the joint control switching component according to any one of claims 1-6.

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