An opening switching component and tracheal tube

Abstract

The present invention discloses an opening switching assembly and an endotracheal tube, and relates to the technical field of medical devices. The opening switching assembly of the present invention is used on the tube body of the endotracheal tube, and the tube body is provided with a first opening and a second opening. The opening switching assembly includes a first blocking portion and a second blocking portion, and the first blocking portion is used to control the opening and closing state of the first opening, and the second blocking portion is used to control the opening and closing state of the second opening. The opening switching assembly also includes a pull wire, and the distal end of the pull wire is connected to the first blocking portion and the second blocking portion, and the proximal end of the pull wire extends to the proximal end of the tube body. Based on the tension applied to the pull wire, the first blocking portion and the second blocking portion move toward the force direction, and one of the first opening and the second opening is in an open state, and the other is in a closed state. The opening switching assembly can complete the switching between the first opening and the second opening in only one step, thereby improving the switching efficiency between the first opening and the second opening, and simplifying the operation steps of the endotracheal tube.

Description

Technical Field

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

[0002] An endotracheal tube is a medical device that is inserted into the patient's trachea and / or bronchi to create a temporary artificial breathing channel for the patient, especially for those who cannot breathe independently. An endotracheal tube can also be used for lung isolation during surgery to protect the healthy lung from contamination by secretions or blood drained from the affected lung.

[0003] Tracheal tubes are divided into single-lumen tracheal tubes and double-lumen tracheal tubes. Single-lumen tracheal tubes are widely used in clinical practice due to their thin outer diameter, low probability of airway damage, simple operation, and no change in airway diameter. In related technologies, a single-lumen tracheal tube includes a tube body, an airway is formed in the tube body, and the distal end of the tube body has an end opening, which can be used for instrument insertion and / or gas injection; the proximal end of the tube body has a connecting tube, which is used to connect to the ventilation equipment; the tube body is also provided with an airbag, which can fix the tracheal tube after inflation; the distal side wall of the tube body is also provided with a side opening, which can also allow gas to pass through. Normally, the end opening on the tube body is in an open state, and the side opening is in a closed state.

[0004] When lung isolation is required (for example, if tracheal bleeding occurs during surgery, an air bag is needed to block the bleeding segment to prevent blood from flowing into the healthy lung; or when surgery is required on the affected lung), a single-lumen endotracheal tube is inserted through the main trachea into the bronchus on the side to be blocked, and the side opening on the tube body is aligned with the healthy lung side, and then the end opening at the distal end of the tube body is blocked, and the side opening on the tube body is opened, so that the gas entering through the airway can only enter the healthy lung side through the side opening, but cannot enter the bronchus on the blocked side through the end opening.

[0005] In the related art, an inflatable balloon is provided at the distal end of the airway, and the inflatable balloon is located at the distal end of the side opening. After the inflatable balloon is inflated, the distal end of the airway can be blocked, thereby achieving the closure of the end opening; a movable blocking piece is also provided in the airway, and the side opening can be opened or closed by moving the blocking piece. In the tracheal tube in the related art, the opening and closing of the end opening and the side opening are independently controlled, that is, when achieving unilateral ventilation, at least two actions are required: controlling the closing of the end opening and controlling the opening of the side opening. However, in clinical surgery, when encountering intratracheal bleeding, the doctor only has a few minutes to deal with it. The independent control of the end opening and the side opening makes the operation steps of the single-lumen tracheal tube cumbersome, and it is urgent to simplify the operation. Summary of the invention

[0006] The invention discloses an opening switching component and an endotracheal tube, so as to solve the technical problem that a single-lumen endotracheal tube in the related art has complicated operation steps when realizing unilateral ventilation.

[0007] In order to solve the above problems, the present invention adopts the following technical solutions:

[0008] A first aspect of the present invention provides an opening switching assembly.

[0009] The opening switching assembly of the present invention is used on the tube body of an endotracheal tube, the tube body is provided with a first opening and a second opening, the opening switching assembly includes a first blocking portion and a second blocking portion, the first blocking portion is used to control the opening and closing state of the first opening, the second blocking portion is used to control the opening and closing state of the second opening, the opening switching assembly also includes a pull wire, the distal end of the pull wire is connected to the first blocking portion and the second blocking portion, and the proximal end of the pull wire extends to the outside of the proximal end of the tube body; based on the tension applied to the pull wire, the first blocking portion and the second blocking portion move in the direction of the force, and make one of the first opening and the second opening in an open state and the other in a closed state.

[0010] According to an optional embodiment, the first sealing part is located at the distal end of the second sealing part, one end of the first sealing part is fixed in the tube body, the first sealing part is a flexible membrane, the second sealing part is slidably arranged in the tube body, the second sealing part is a sleeve, and when the first sealing part and the second sealing part are not subjected to tension, the flexible membrane is a structure that penetrates along the axial direction of the tube body, the sleeve is located at the second opening and blocks the second opening, when the first sealing part and the second sealing part are subjected to tension, the end of the flexible membrane is sealed and the first opening is switched from an open state to a closed state, and the sleeve moves toward the proximal end and switches the second opening from a closed state to an open state.

[0011] According to an optional embodiment, a first loop is formed at the distal end of the pull wire, the proximal end of the pull wire passes through the first loop, and the distal end of the pull wire forms a second loop, and the second loop is fixedly connected to the first blocking portion.

[0012] According to an optional embodiment, the pull wire further includes a limiting tube, which is fixed to the inner wall of the tube body, is an internally hollow structure, and is used for allowing the pull wire at the proximal end of the second ring to pass through.

[0013] According to an optional embodiment, the first blocking part and the second blocking part can be slidably arranged on the tube body, the first blocking part and the second blocking part are both sleeves, and based on the tension applied to the pull wire, the first blocking part and the second blocking part slide, and the first opening is switched from an open state to a closed state, and the second opening is switched from a closed state to an open state; or the first opening is switched from a closed state to an open state, and the second opening is switched from an open state to a closed state.

[0014] According to an optional embodiment, the two ends of the pull wire are respectively located at the distal end and the proximal end of the tube body; or the pull wire is a soft wire, the two ends of the pull wire are both located at the proximal end of the tube body, and the pull wire forms a bending portion at the distal end of the tube body.

[0015] According to an optional embodiment, the first blocking portion is located at the distal end of the second blocking portion, the pull wire located at both ends of the first blocking portion has a first blocking portion, and the pull wire located at both ends of the second blocking portion has a second blocking portion, and the distance between the first blocking portion and the end of the first blocking portion is the same as the distance between the second blocking portion and the end of the second blocking portion, or the distance between the first blocking portion and the end of the first blocking portion is smaller than the distance between the second blocking portion and the end of the second blocking portion.

[0016] According to an optional embodiment, the opening switching assembly also includes a handwheel, the handwheel includes a knob and a turntable, the knob and the turntable are fixedly connected, and the proximal end of the pull wire is installed on the turntable; the handwheel also includes a claw, and the claw is used to fix the handwheel.

[0017] A second aspect of the present invention provides an endotracheal tube.

[0018] The endotracheal tube of the present invention comprises a tube body, wherein the distal end of the tube body has a first opening, and the distal side wall of the tube body has a second opening; or the distal side wall of the tube body has a first opening and a second opening, and the first opening is located at the distal end of the second opening; the endotracheal tube further comprises an opening switching component, which is the opening switching component described in any technical solution of the present invention, and is used to control the opening and closing of the first opening and the second opening.

[0019] According to an optional embodiment, when the first opening is located on the side wall of the tube body, the first opening has a guiding slope.

[0020] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0021] The opening switching assembly of the present invention is used to control one of the first opening and the second 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 opening switching assembly of the present invention switches the state of the first opening and the second opening based on the force applied to the pull wire. Since the distal end of the pull wire is connected to the first blocking part and the second blocking part, when the pull wire is subjected to force, the first blocking part and the second blocking part can be moved synchronously and the switching between the first opening state and the second opening state can be achieved. That is, the opening switching assembly of the present invention can simultaneously control the switching between the first opening state and the second opening state through one action, thereby improving the switching efficiency between the first opening state and the second opening state and simplifying the operation steps of the tracheal tube.

[0022] On the other hand, in the opening switching assembly of the present invention, the distal end of the pull wire is connected to the first blocking part and the second blocking part, and the proximal end of the pull wire extends to the outside of the proximal end of the tube body. The first blocking part and the second blocking part are driven to operate by applying force to the pull wire. This method of applying force outside the tube body has the advantages of easy operation and high reliability; and the pull wire occupies less space, which is conducive to the miniaturization of the tracheal tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 is a schematic diagram of a tracheal tube according to a first embodiment of the present application;

[0025] Figure 2 is a schematic diagram of a tracheal tube according to a second embodiment of the present application;

[0026] Figure 3 is a first partial schematic diagram of an endotracheal tube according to a second embodiment of the present application;

[0027] Figure 4 is a second partial schematic diagram of an endotracheal tube according to a second embodiment of the present application;

[0028] Figure 5 yes Figure 4 A magnified view of part A;

[0029] Figure 6 is a schematic diagram of a tracheal tube fixed to an endoscope handle in a third embodiment of the present application;

[0030] Figure 7is a partial schematic diagram of a tracheal tube according to a third embodiment of the present application;

[0031] Figure 8 is a schematic diagram of an opening switching assembly according to a first embodiment of the present application;

[0032] Fig. 9 is a schematic diagram of a pull wire in an opening switching assembly in the first embodiment of the present application;

[0033] Fig.10 is a schematic diagram of a first blocking portion in an opening switching assembly in the first embodiment of the present application being in an open state;

[0034] Fig.11 is a schematic diagram of a first blocking portion in an opening switching assembly in the first embodiment of the present application being in a sealed state;

[0035] Fig.12 is a schematic diagram of an opening switching assembly according to a second embodiment of the present application;

[0036] Fig.13 yes Fig.12 A magnified view of part B;

[0037] Fig.14 is a schematic diagram of an opening switching assembly according to a third embodiment of the present application;

[0038] Fig.15 is a schematic diagram of an opening switching assembly according to a fourth embodiment of the present application;

[0039] Fig.16 It is a schematic diagram of the opening switching component of the fifth embodiment of the present application.

[0040] In the figure: 100, opening switching assembly; 110, first blocking part; 120, second blocking part; 130, pull wire; 130a, first pull wire part; 130b, second pull wire part; 131, first ring; 132, second ring; 133, limit tube; 134, bending part; 135, first blocking part; 136, second blocking part; 140, hand wheel; 141, knob; 142, turntable; 143, claw; 150, fixing ring; 200, tube body; 210, first opening; 220, second opening; 230, guide slope; 240, first balloon; 250, second balloon; 260, first balloon catheter; 270, second balloon catheter; 310, handle. DETAILED DESCRIPTION

[0041] 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.

[0042] 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.

[0043] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0044] In the tracheal tube in the related art, the opening and closing of the end opening and the side opening are independently controlled by an inflatable balloon and a blocking piece. When achieving unilateral ventilation, at least two actions need to be controlled: closing the end opening and opening the side opening, resulting in cumbersome operation steps of the single-lumen tracheal tube. To this end, the present application provides an opening switching component that can simultaneously control the switching of two opening states. When switching the air intake mode of the tracheal tube, the opening switching can be completed in one step, simplifying the operation steps of the tracheal tube.

[0045] The following is combined with Figures 1 to 16 , the opening switching assembly 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 opening switching component.

[0047] The opening switching assembly of this embodiment is used on the tube body 200 of the tracheal tube, such as Figure 1 to Figure 7 The tube body 200 is provided with a first opening 210 and a second opening 220. Figure 1 to Figure 4 , Figure 6 and Figure 7As shown. Exemplarily, the tube body 200 is further provided with a first balloon 240, a second balloon 250, a first balloon catheter 260, and a second balloon catheter 270. The first balloon catheter 260 is used to supply air and / or exhaust air to the first balloon 240, and the second balloon catheter 270 is used to supply air and / or exhaust air to the second balloon 250. Figure 1 to Figure 4 , Figure 6 and Figure 7 As shown. Exemplarily, the second balloon 250 is located at the distal end of the first balloon 240. Inflating the first balloon 240 and the second balloon 250 can expand the first balloon 240 and the second balloon 250 to fix the endotracheal tube in the trachea. Exemplarily, the first balloon 240 and the second balloon 250 can be inflated or deflated at the same time, or the first balloon 240 and the second balloon 250 can be inflated or deflated independently.

[0048] Exemplarily, the first opening 210 is an end opening, and the second opening 220 is a side opening. Figure 1 The first opening 210 is located at the distal end of the second balloon 250, and the second opening 220 is located between the first balloon 240 and the second balloon 250. Figure 1 The tracheal tube can achieve bilateral lung air intake by opening the first opening 210 and closing the second opening 220; and can achieve unilateral lung air intake by closing the first opening 210 and opening the second opening 220.

[0049] Exemplarily, the first opening 210 and the second opening 220 are both side openings, and the distal end of the tube body 200 is sealed. Figure 2 to Figure 4 , Figure 6 and Figure 7 As shown. The distal end of the tube body 200 can be spherical or conical. In this type of endotracheal tube, the first opening 210 and the second opening 220 are both side openings, which can reduce the risk of the distal end surface of the tube body 200 abutting against the inner wall of the cavity during the intubation process. The first opening 210 is located at the distal end of the second balloon 250, and the second opening 220 is located between the first balloon 240 and the second balloon 250. Figure 2 to Figure 4 , Figure 6 and Figure 7 The tracheal tube can achieve bilateral lung air intake by opening the first opening 210 and closing the second opening 220; and can achieve unilateral lung air intake by closing the first opening 210 and opening the second opening 220.

[0050] The opening switching assembly of this embodiment includes a first blocking portion 110 and a second blocking portion 120. Figure 1 to Figure 4 , Figure 6 and Figure 7The first blocking portion 110 is used to block the first opening 210 or to open the first opening 210. The second blocking portion 120 is used to block the second opening 220 or to open the second opening 220.

[0051] It can be known that when the opening switching component of this embodiment is to achieve switching of more opening states, a third blocking part, a fourth blocking part, etc. can also be provided.

[0052] The opening switching assembly of this embodiment further includes a pull wire 130, such as Figure 1 to Figure 4 , Figure 6 and Figure 7 As shown. Exemplarily, the pull wire 130 can be a bendable pull rope with a small diameter, such as a steel wire rope. Exemplarily, the pull wire 130 is a soft wire, such as a soft rope, so that the pull wire 130 can adapt to the bending of the tube body 200, will not affect the movement of the tube body 200 in the body, and the pull wire 130 will not increase the rigidity of the tube body 200.

[0053] In some embodiments, the distal end of the pull wire 130 is connected to the first blocking portion 110 and the second blocking portion 120, such as Figures 8 to 16 As shown. Exemplarily, the distal end of the pull wire 130 is fixedly connected to the first blocking portion 110 and the second blocking portion 120 by bonding, welding, sleeve connection, etc. The proximal end of the pull wire 130 extends to the proximal end of the tube body 200, as shown. Figure 1 to Figure 4 , Figure 6 and Figure 7 Specifically, the proximal end of the connection between the pull wire 130 and the first blocking portion 110 and the second blocking portion 120 extends along the tube body 200 to the outside of the proximal end of the tube body 200, so that force can be applied to the pull wire 130 outside the tube body 200, as shown in FIG. Figure 1 to Figure 4 , Figure 6 and Figure 7 shown.

[0054] In some embodiments, a pulling force is applied to the pull wire 130 outside the tube body 200. For example, the pulling force can be applied to the pull wire 130 by manual operation. Based on the pulling force on the pull wire 130, the first blocking portion 110 and the second blocking portion 120 move in the force direction, and one of the first opening 210 and the second opening 220 is in an open state, and the other is in a closed state.

[0055] For example, in the initial state, the first opening 210 is in an open state, and the second opening 220 is in a closed state. Based on the tension applied to the pull wire 130, the first blocking portion 110 and the second blocking portion 120 move in the force direction, and the first opening 210 is switched to a closed state, while the second opening 220 is switched to an open state. Thus, the double-sided air intake mode can be switched to the single-sided air intake mode, so as to achieve one-side lung blocking and the other-side lung air intake, which is convenient for hemostasis or surgery on the affected lung.

[0056] For example, in the initial state, the first opening 210 is in a closed state, and the second opening 220 is in an open state. Based on the tension applied to the pull wire 130, the first blocking portion 110 and the second blocking portion 120 move in the force direction, and the first opening 210 is switched to an open state, while the second opening 220 is switched to a closed state. Thus, the single-side air intake mode can be switched to the double-lung air intake mode to ensure the air intake of both lungs.

[0057] It can be seen that the opening switching assembly of this embodiment is used to control one of the first opening 210 and the second opening 220 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 to facilitate operations such as air supply, hemostasis, or surgery on the affected lung side.

[0058] The opening switching assembly of this embodiment switches the state of the first opening 210 and the second opening 220 based on the force applied to the pull wire 130. Since the distal end of the pull wire 130 is connected to the first blocking portion 110 and the second blocking portion 120, when the pull wire 130 is subjected to force, the first blocking portion 110 and the second blocking portion 120 can be moved synchronously and the state of the first opening 210 and the state of the second opening 220 can be switched. That is, the opening switching assembly of this embodiment can simultaneously control the switching of the state of the first opening 210 and the state of the second opening 220 through one action, thereby improving the switching efficiency of the state of the first opening 210 and the state of the second opening 220 and simplifying the operation steps of the tracheal tube.

[0059] On the other hand, in the opening switching assembly of the present embodiment, the distal end of the pull wire 130 is connected to the first blocking part 110 and the second blocking part 120, and the proximal end of the pull wire 130 extends to the outside of the proximal end of the tube body 200. The first blocking part 110 and the second blocking part 120 are driven to operate by applying force to the pull wire 130. This method of applying force to the outside of the tube body 200 has the advantages of easy operation and high reliability. In addition, the pull wire 130 occupies a smaller space, which is conducive to the miniaturization of the tracheal tube.

[0060] The structures of the first blocking portion 110 and the second blocking portion 120 of the present embodiment are described in detail below by taking the initial state where the first opening 210 is in an open state and the second opening 220 is in a closed state as an example.

[0061] In some embodiments, when the first opening 210 is an end opening and the second opening 220 is a side opening, the first blocking portion 110 is located at the distal end of the second blocking portion 120, that is, the first blocking portion 110 is used to control the switching of the state of the first opening 210, and the second blocking portion 120 is used to control the switching of the state of the second opening 220, such as Figure 1 shown.

[0062] In some embodiments, the first blocking portion 110 is a flexible film, such as Figure 8 , Fig.10 and Fig.11 As shown. The flexible film is a film made of a flexible material. A flexible material refers to a material that can be deformed under 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.

[0063] In some embodiments, one end of the first blocking portion 110 is fixed in the tube body 200. For example, the distal end of the first blocking portion 110 is bonded in the tube body 200, and the proximal end of the first blocking portion 110 is sleeved with the pull wire 130. Figure 8 , Fig.10 and Fig.11 Alternatively, a fixing ring 150 is disposed at the distal end of the tube body 200, and the first blocking portion 110 is sleeved on the fixing ring 150, as shown in FIG. Figure 8 , Fig.10 and Fig.11 The distal end of the fixing ring 150 is fixedly connected to the inner wall of the tube body 200, and there is a gap between the proximal end of the fixing ring 150 and the inner wall of the tube body 200, so that the flexible membrane can extend from the gap.

[0064] In some embodiments, the distal end of the pull wire 130 is formed with a first loop 131, the proximal end of the pull wire 130 passes through the first loop 131, and the distal end of the pull wire 130 is formed with a second loop 132, such as Fig. 9 As shown. The second ring 132 is fixedly connected to the first blocking portion 110. Exemplarily, the second ring 132 is sleeved on the proximal end of the flexible membrane and is fixedly connected to the proximal end of the flexible membrane. When the pull wire 130 is subjected to tension, the pull wire 130 moves toward the proximal end and drives the flexible membrane to move toward the proximal end, and at the same time, the opening of the second ring 132 can be reduced. When the opening of the second ring 132 is reduced, the opening of the flexible membrane fixedly connected thereto is also gradually reduced until the second ring 132 is tightened and the opening of the flexible membrane is sealed, as shown in FIG. Figure 8 or Fig.11 shown.

[0065] When the pull wire 130 is not subjected to tension, the first blocking portion 110 is also not subjected to tension, and the flexible membrane is a structure that penetrates along the axial direction of the tube body 200, allowing gas to pass through. At this time, the first opening 210 is in an open state, such as Fig.10 When the pull wire 130 is subjected to tension, the first blocking portion 110 is also subjected to tension, and the flexible membrane moves along the force direction and seals the proximal end of the flexible membrane, so as to switch the first opening 210 from an open state to a closed state, thereby preventing gas from passing through the first opening 210. Figure 8 or Fig.11 shown.

[0066] In some embodiments, the second blocking portion 120 is a sleeve, such as Figure 8 As shown. Exemplarily, the second blocking portion 120 is a sleeve structure made of a flexible material, so that the influence of the second blocking portion 120 on the strength of the tube body 200 can be reduced. Exemplarily, the width of the second blocking portion 120 can be set to be slightly larger than the size of the second opening 220 in the axial direction of the tube body 200, so that the influence of the second blocking portion 120 on the strength of the tube body 200 can be reduced, and the reliability of the second blocking portion 120 blocking the second opening 220 can be ensured.

[0067] In some embodiments, the second blocking portion 120 is slidably disposed in the tube body 200, and the outer wall of the second blocking portion 120 is in contact with the inner wall of the tube body 200. Thus, when the second blocking portion 120 slides to the second opening 220, the second opening 220 can be blocked by the side wall of the second blocking portion 120; when the second blocking portion 120 slides away from the second opening 220, the second blocking portion 120 cannot block the second opening 220, that is, the second opening 220 is in an open state, such as Figure 1 shown.

[0068] When the pull wire 130 is not subjected to tension, the second blocking portion 120 is also not subjected to tension, the sleeve is located at the second opening 220 and blocks the second opening 220, at which time the second opening 220 is in a closed state, and gas cannot pass through the second opening 220. When the pull wire 130 is subjected to tension, the second blocking portion 120 is also subjected to tension, and the sleeve moves toward the proximal end, that is, the sleeve moves away from the second opening 220, so that the second opening 220 can be switched from a closed state to an open state, and gas can pass through the second opening 220. Figure 1 shown.

[0069] The first blocking portion 110 and the second blocking portion 120 have simple structures and high reliability.

[0070] In some embodiments, the pull wire 130 further includes a stop tube 133, such as Fig.10 and Fig.11 The limiting tube 133 is fixed on the inner wall of the tube body 200. The limiting tube 133 is a hollow structure, and the limiting tube 133 is used for the pull wire 130 at the proximal end of the second ring 132 to pass through. Exemplarily, the inner diameter of the limiting tube 133 is slightly larger than the diameter of the pull wire 130, which can reduce the friction force on the pull wire 130 during the movement.

[0071] In the solution of this embodiment, the pull wire 130 at the proximal end of the second ring 132 can slide in the limit tube 133 through the constraint of the limit tube 133, thereby avoiding the problem that after the pull wire 130 is subjected to force, the pull wire 130 is located in the middle of the tube body 200, which affects the passability of the tube body 200.

[0072] This embodiment further provides another structure of the first blocking portion 110 and the second blocking portion 120 .

[0073] In some embodiments, when the first opening 210 and the second opening 220 are both side openings, the first blocking portion 110 is located at the distal end of the second blocking portion 120, that is, the first blocking portion 110 is used to control the switching of the state of the first opening 210, and the second blocking portion 120 is used to control the switching of the state of the second opening 220, such as Fig.12 , Figure 14 to Figure 16 shown.

[0074] In some embodiments, the first blocking portion 110 and the second blocking portion 120 are both sleeves, such as Fig.12 , Figure 14 to Figure 16 As shown. Exemplarily, the first sealing portion 110 and the second sealing portion 120 are both sleeve structures made of flexible materials, so that the influence of the first sealing portion 110 and the second sealing portion 120 on the strength of the tube body 200 can be reduced. Exemplarily, the width of the first sealing portion 110 and the second sealing portion 120 can be set to be slightly larger than the size of the first opening 210 and the second opening 220 in the axial direction of the tube body 200, so that the influence of the first sealing portion 110 and the second sealing portion 120 on the strength of the tube body 200 can be reduced, and the reliability of the first sealing portion 110 and the second sealing portion 120 in sealing the first opening 210 and the second opening 220 can be ensured.

[0075] In some embodiments, the first blocking portion 110 and the second blocking portion 120 can be slidably disposed on the tube body 200. For example, the first blocking portion 110 and the second blocking portion 120 can be located on the inner wall of the tube body 200; the first blocking portion 110 and the second blocking portion 120 can also be located on the outer wall of the tube body 200, such as Figure 2 , Figure 6 and Figure 7 As shown. The first blocking portion 110 and the second blocking portion 120 are located on the outer wall of the tube body 200, which can prevent the first blocking portion 110 and the second blocking portion 120 from affecting the permeability of the tube body 200. The wall surface of the first blocking portion 110 and the second blocking portion 120 fits the wall surface of the tube body 200. Accordingly, the pull wire 130 can be located inside and / or outside the tube body 200.

[0076] For example, when the pull wire 130 is not subjected to tension, the first blocking portion 110 and the second blocking portion 120 are also not subjected to tension. At this time, the first blocking portion 110 is located at the first opening 210, and the second blocking portion 120 is located below the second opening 220, that is, the first opening 210 is in a closed state, and the second opening 220 is in an open state. Figure 2When the pull wire 130 is subjected to tension, the first blocking portion 110 and the second blocking portion 120 are also subjected to tension, and the first blocking portion 110 and the second blocking portion 120 move toward the proximal end, that is, the first blocking portion 110 moves away from the first opening 210 until the first opening 210 is fully opened, and the second blocking portion 120 approaches the second opening 220 until the second blocking portion 120 blocks the second opening 220, that is, the first opening 210 is in an open state, and the second opening 220 is in a closed state.

[0077] For example, when the pull wire 130 is not subjected to tension, the first blocking portion 110 and the second blocking portion 120 are also not subjected to tension. At this time, the first blocking portion 110 is located above the first opening 210, and the second blocking portion 120 is located at the second opening 220, that is, the first opening 210 is in an open state, and the second opening 220 is in a closed state. Figure 6 or Figure 7 When the pull wire 130 is subjected to tension, the first blocking portion 110 and the second blocking portion 120 are also subjected to tension, and the first blocking portion 110 and the second blocking portion 120 move toward the distal end, that is, the first blocking portion 110 approaches the first opening 210 until the first blocking portion 110 blocks the first opening 210, and the second blocking portion 120 moves away from the second opening 220 until the second opening 220 is fully opened, that is, the first opening 210 is in a closed state, and the second opening 220 is in an open state.

[0078] In the initial state, the first blocking portion 110 is arranged above the first opening 210 to avoid space limitation below the first opening 210 . The first blocking portion 110 is arranged below the first opening 210 , which will increase the overall length of the tube body 200 .

[0079] The first blocking portion 110 and the second blocking portion 120 are not limited to the above two arrangements, and other arrangements are also possible.

[0080] In some embodiments, the ends of the pull wire 130 are respectively located at the distal end and the proximal end of the tube body 200. The distal end of the pull wire 130 is connected to the first blocking portion 110 and the second blocking portion 120, and the proximal end of the pull wire 130 is located outside the proximal end of the tube body 200, so that by pulling the pull wire 130, a pulling force toward the proximal end can be applied to the pull wire 130 to drive the first blocking portion 110 and the second blocking portion 120 to move toward the proximal end.

[0081] In some embodiments, the pull wire 130 is a soft wire. Both ends of the pull wire 130 are located at the proximal end of the tube body 200, and the pull wire 130 forms a bend 134 at the distal end of the tube body 200. Figure 12 to Figure 16As shown. Exemplarily, the pull line 130 is a folded soft rope, and a bending portion 134 is formed at the fold. The pull line 130 located on one side of the bending portion 134 is a first pull line portion 130a, and the pull line 130 located on the other side of the bending portion 134 is a second pull line portion 130b.

[0082] Exemplarily, the first wire pulling portion 130a and the second wire pulling portion 130b may be located inside the tube body 200 at the same time; or may be located outside the tube body 200 at the same time; or one of them may be located inside the tube body 200 and the other may be located outside the tube body 200. Preferably, one of the first wire pulling portion 130a and the second wire pulling portion 130b is located inside the tube body 200 and the other may be located outside the tube body 200. For example, the first wire pulling portion 130a is located outside the tube body 200, and the second wire pulling portion 130b is located inside the tube body 200.

[0083] For example, when the first blocking portion 110 and the second blocking portion 120 are located outside the tube body 200, the distal end of the first pull wire portion 130a is connected to the first blocking portion 110 and the second blocking portion 120. Figure 12 to Figure 16 When the first pull wire portion 130a is pulled toward the proximal end, the first blocking portion 110 and the second blocking portion 120 can be moved toward the proximal end; when the second pull wire portion 130b is pulled toward the proximal end, the first blocking portion 110 and the second blocking portion 120 can be moved toward the distal end.

[0084] Exemplarily, when the first blocking portion 110 and the second blocking portion 120 are located inside the tube body 200, the distal end of the second pull-wire portion 130b is connected to the first blocking portion 110 and the second blocking portion 120. When the first pull-wire portion 130a is pulled toward the proximal end, the first blocking portion 110 and the second blocking portion 120 can be moved toward the distal end; when the second pull-wire portion 130b is pulled toward the proximal end, the first blocking portion 110 and the second blocking portion 120 can be moved toward the proximal end.

[0085] It can be seen that in the solution of this embodiment, the pull wire 130 is a folded structure, so that the first blocking part 110 and the second blocking part 120 have a movable state in two directions, so that the opening switching component of this embodiment can repeatedly switch the state of the first opening 210 and the second opening 220.

[0086] In some embodiments, the first pull-wire portion 130 a or the second pull-wire portion 130 b may be subjected to force by manually applying force, so that the first blocking portion 110 and the second blocking portion 120 move in different directions.

[0087] In some embodiments, the opening switching assembly further includes a hand wheel 140, such as Figure 1 or Figure 6As shown. The hand wheel 140 includes a knob 141 and a turntable 142, the knob 141 and the turntable 142 are fixedly connected, and the proximal end of the pull wire 130 is installed on the turntable 142. By rotating the knob 141, the turntable 142 can be driven to rotate, thereby driving the first pull wire part 130a and the second pull wire part 130b to move synchronously in different directions. When the knob 141 is rotated in different directions, the first blocking part 110 and the second blocking part 120 can be moved in different directions.

[0088] In some embodiments, the hand wheel 140 further includes a claw 143, and the claw 143 is used to fix the hand wheel 140. Figure 1 or Figure 6 As shown. For example, when the endotracheal tube is inserted into the cavity, the insertion part of the endoscope is usually inserted into the tube body 200, and the camera module at the front end of the insertion part of the endoscope is used to observe the condition in the cavity to improve the reliability of the intubation. The claw 143 can be used to clamp on the handle 310 of the endoscope, so as to achieve the fixation of the hand wheel 140, as shown in FIG. Figure 6 As shown. Exemplarily, the claw 143 is clamped on the instrument mouth on the handle 310 to improve the stability of the clamping.

[0089] Without limitation thereto, the claw 143 may also be used to clamp and fix the hand wheel 140 to other components, such as the proximal end of the tube body 200 .

[0090] In some embodiments, in order to ensure the sealing of the tube body 200 , a limiting tube 133 may be provided outside the pull wire 130 . The limiting tube 133 is sealed and connected to the tube body 200 , and the pull wire 130 may slide in the limiting tube 133 .

[0091] In some embodiments, the pull wire 130 may be fixedly connected to the first sealing portion 110 and the second sealing portion 120 by means of gluing, welding, sleeve connection, etc.

[0092] In some embodiments, the pull wire 130 may also be movably connected to the first blocking portion 110 and the second blocking portion 120. Exemplarily, the portion of the pull wire 130 located on both sides of the first blocking portion 110 and the second blocking portion 120 is provided with a blocking portion, the spacing between the blocking portions on both sides of the first blocking portion 110 is greater than or equal to the width of the first blocking portion 110, and the spacing between the blocking portions on both sides of the second blocking portion 120 is greater than or equal to the width of the second blocking portion 120. The first blocking portion 110 and the second blocking portion 120 are driven to move by the abutment between the blocking portion provided on the pull wire 130 and the first blocking portion 110 or the second blocking portion 120.

[0093] Exemplarily, the blocking portion may be a knot formed by the pull wire 130, or a stopper fixed on the pull wire 130, so that the outer diameter of the pull wire 130 at the blocking portion is larger than the outer diameter at a portion where no blocking portion is provided.

[0094] Exemplarily, the first blocking portion 110 is located at the distal end of the second blocking portion 120, the pull wires 130 located at both ends of the first blocking portion 110 have first blocking portions 135, and the pull wires 130 located at both ends of the second blocking portion 120 have second blocking portions 136, such as Fig.15 and Fig.16 When the blocking portion located at the proximal end of the first blocking portion 110 and / or the second blocking portion 120 abuts against the first blocking portion 110 and / or the second blocking portion 120, the first blocking portion 110 and / or the second blocking portion 120 can be driven to move toward the distal end; when the blocking portion located at the distal end of the first blocking portion 110 and / or the second blocking portion 120 abuts against the first blocking portion 110 and / or the second blocking portion 120, the first blocking portion 110 and / or the second blocking portion 120 can be driven to move toward the proximal end.

[0095] In some embodiments, the distance between the first blocking portion 135 and the end of the first blocking portion 110 is the same as the distance between the second blocking portion 136 and the end of the second blocking portion 120, so that the first blocking portion 110 and the second blocking portion 120 can move synchronously, that is, the first opening 210 and the second opening 220 can complete the state switching at the same time, such as Fig.15 shown.

[0096] In some embodiments, the distance between the first blocking portion 135 and the end of the first blocking portion 110 is smaller than the distance between the second blocking portion 136 and the end of the second blocking portion 120. Fig.16 As shown. Thus, the first blocking portion 135 can firstly abut against the end of the first blocking portion 110, and the second blocking portion 136 can then abut against the end of the second blocking portion 120. Exemplarily, the width of the first blocking portion 110 is greater than the width of the second blocking portion 120 to ensure that the first opening 210 remains sealed during the opening of the second opening 220.

[0097] The inventors found in their research that when the single-side air intake mode is realized, the first opening 210 is sealed while the second opening 220 is opened, that is, the first opening 210 and the second opening 220 complete the state switching at the same time, or the second opening 220 is opened before the first opening 210 is sealed, which may cause gas leakage, blood secretions from the affected lung side entering the healthy lung side, causing cross infection and other hidden dangers. In the scheme of this embodiment, the positions of the first blocking portion 135 and the second blocking portion 136 can be used to control the first opening 210 to be sealed first and then the second opening 220 to be opened, so as to avoid hidden dangers such as gas leakage or cross infection.

[0098] The second aspect of this embodiment provides a detailed description of the endotracheal tube.

[0099] The tracheal tube of this embodiment includes a tube body 200, such as Figure 1 to Figure 4 , Figure 6and Figure 7 As shown. The tube body 200 is formed into an airway space for gas to pass through. Exemplarily, the tube body 200 is also provided with a first balloon 240, a second balloon 250, a first balloon catheter 260, and a second balloon catheter 270. The first balloon catheter 260 is used to supply and / or exhaust gas to the first balloon 240, and the second balloon catheter 270 is used to supply and / or exhaust gas to the second balloon 250. Figure 1 to Figure 4 , Figure 6 and Figure 7 As shown. Inflate the first balloon 240 and the second balloon 250 to expand the first balloon 240 and the second balloon 250 to fix the tracheal tube in the trachea. Exemplarily, the second balloon 250 is located at the distal end of the first balloon 240, such as Figure 1 to Figure 4 , Figure 6 and Figure 7 shown.

[0100] In some embodiments, the distal end of the tube body 200 has a first opening 210, and the distal side wall of the tube body 200 has a second opening 220. Figure 1 As shown. Exemplarily, the first opening 210 is located at the distal end of the second balloon 250, and the second opening 220 is located between the first balloon 240 and the second balloon 250. Figure 1 shown.

[0101] Alternatively, the distal side wall of the tube body 200 has a first opening 210 and a second opening 220, and the first opening 210 is located at the distal end of the second opening 220. Figure 2 to Figure 4 , Figure 6 and Figure 7 As shown. Exemplarily, the first opening 210 is located at the distal end of the second balloon 250, and the second opening 220 is located between the first balloon 240 and the second balloon 250. Figure 2 to Figure 4 , Figure 6 and Figure 7 This type of tube body 200 can seal the distal end of the tube body 200, and the distal end of the tube body 200 can be spherical or conical to reduce the risk of the distal end surface of the tube body 200 abutting against the inner wall of the cavity during the intubation process.

[0102] The tracheal tube of this embodiment further includes an opening switching assembly 100, such as 1 to Figure 4 , Figure 6 and Figure 7 The opening switching assembly 100 is an opening switching assembly of any technical solution in this embodiment, and the opening switching assembly 100 is used to control the opening and closing of the first opening 210 and the second opening 220 .

[0103] The tracheal tube of this embodiment has an opening switching assembly of any one of the technical solutions in this embodiment, through which the states of the first opening 210 and the second opening 220 can be switched, so that the tracheal tube can achieve different air intake modes, so as to facilitate operations such as air supply, hemostasis, or surgery on the affected lung side.

[0104] The tracheal tube of this embodiment has the opening switching assembly of any one of the technical solutions in this embodiment, which can also improve the switching efficiency between the first opening 210 state and the second opening 220 state, simplify the operation steps of the tracheal tube; and when switching, it also has the advantages of convenient operation and high reliability.

[0105] In some embodiments, when the first opening 210 is located on the side wall of the tube body 200, the first opening 210 has a guide slope 230, such as Figure 5 As shown. Exemplarily, the guide slope 230 is inclined in the tube body 200, as shown in FIG. Figure 5 A guiding slope 230 is provided at the first opening 210 , and the guiding slope 230 is inclined toward the first opening 210 , which can guide the insertion part or instrument of the endoscope inserted through the tube body 200 , so that the insertion part or instrument can easily pass through the first opening 210 .

[0106] 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.

[0107] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0108] 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. An opening switching assembly, used on a tube body (200) of a single-lumen endotracheal tube, wherein the tube body (200) is provided with a first opening (210) and a second opening (220), characterized in that: The opening switching assembly comprises a first blocking portion (110) and a second blocking portion (120), the first blocking portion (110) being used to control the opening and closing state of the first opening (210), and the second blocking portion (120) being used to control the opening and closing state of the second opening (220). The opening switching assembly further comprises a pull wire (130), wherein the pull wire (130) is one, the distal end of the pull wire (130) is connected to the first blocking portion (110) and the second blocking portion (120) in sequence, and the proximal end of the pull wire (130) extends to the outside of the proximal end of the tube body (200); based on the pulling force applied to the pull wire (130), the first blocking portion (110) and the second blocking portion (120) move in the direction of the force, and one of the first opening (210) and the second opening (220) is in an open state, and the other is in a closed state; The first blocking portion (110) is located at the distal end of the second blocking portion (120), one end of the first blocking portion (110) is fixed in the tube body (200), the first blocking portion (110) is a flexible membrane, the second blocking portion (120) is slidably arranged in the tube body (200), the second blocking portion (120) is a sleeve, and when the first blocking portion (110) and the second blocking portion (120) are not subjected to tension, the flexible membrane is a structure that penetrates along the axial direction of the tube body (200), the sleeve is located at the second opening (220) and blocks the second opening (220), when the first blocking portion (110) and the second blocking portion (120) are subjected to tension, the end of the flexible membrane is sealed and the first opening (210) is switched from an open state to a closed state, and the sleeve moves toward the proximal end and switches the second opening (220) from a closed state to an open state.

2. The opening switching assembly according to claim 1, characterized in that: The distal end of the pull wire (130) is formed with a first loop (131), the proximal end of the pull wire (130) passes through the first loop (131), and the distal end of the pull wire (130) forms a second loop (132), and the second loop (132) is fixedly connected to the first blocking portion (110).

3. The opening switching assembly according to claim 2, characterized in that: The pull wire (130) further comprises a position limiting tube (133), wherein the position limiting tube (133) is fixed to the inner wall of the tube body (200), the position limiting tube (133) is an internally hollow structure, and the position limiting tube (133) is used for allowing the pull wire (130) at the proximal end of the second ring (132) to pass through.

4. An opening switching assembly, used on a tube body (200) of a single-lumen endotracheal tube, wherein the tube body (200) is provided with a first opening (210) and a second opening (220), characterized in that: The opening switching assembly comprises a first blocking portion (110) and a second blocking portion (120), the first blocking portion (110) being used to control the opening and closing state of the first opening (210), and the second blocking portion (120) being used to control the opening and closing state of the second opening (220). The opening switching assembly further comprises a pull wire (130), wherein the pull wire (130) is one, the distal end of the pull wire (130) is connected to the first blocking portion (110) and the second blocking portion (120) in sequence, and the proximal end of the pull wire (130) extends to the outside of the proximal end of the tube body (200); based on the pulling force applied to the pull wire (130), the first blocking portion (110) and the second blocking portion (120) move in the direction of the force, and one of the first opening (210) and the second opening (220) is in an open state, and the other is in a closed state; The first blocking portion (110) and the second blocking portion (120) are both slidably disposed on the tube body (200); the first blocking portion (110) and the second blocking portion (120) are both sleeves; and based on the tension applied to the pull wire (130), the first blocking portion (110) and the second blocking portion (120) slide, and the first opening (210) is switched from an open state to a closed state, and the second opening (220) is switched from a closed state to an open state; Alternatively, the first opening (210) is switched from a closed state to an open state, and the second opening (220) is switched from an open state to a closed state.

5. The opening switching assembly according to claim 4, characterized in that: The two ends of the pull wire (130) are respectively located at the distal end and the proximal end of the tube body (200); or, The pull wire (130) is a soft wire, both ends of the pull wire (130) are located at the proximal end of the tube body (200), and the pull wire (130) forms a bent portion (134) at the distal end of the tube body (200).

6. The opening switching assembly according to claim 4, characterized in that: The first blocking portion (110) is located at the distal end of the second blocking portion (120), the pull wires (130) located at both ends of the first blocking portion (110) have first blocking portions (135), the pull wires (130) located at both ends of the second blocking portion (120) have second blocking portions (136), and, The distance between the first blocking portion (135) and the end of the first blocking portion (110) is the same as the distance between the second blocking portion (136) and the end of the second blocking portion (120), or the distance between the first blocking portion (135) and the end of the first blocking portion (110) is smaller than the distance between the second blocking portion (136) and the end of the second blocking portion (120).

7. The opening switching assembly according to any one of claims 4 to 6, characterized in that: It also includes a hand wheel (140), wherein the hand wheel (140) includes a knob (141) and a turntable (142). The knob (141) and the rotating disk (142) are fixedly connected, and the proximal end of the pull wire (130) is mounted on the rotating disk (142); The hand wheel (140) further comprises a claw (143), wherein the claw (143) is used to fix the hand wheel (140).

8. A tracheal tube, characterized in that: Comprising a tube body (200), the distal end of the tube body (200) having a first opening (210), and the distal side wall of the tube body (200) having a second opening (220); or the distal side wall of the tube body (200) having a first opening (210) and a second opening (220), the first opening (210) being located at the distal end of the second opening (220); The endotracheal tube further comprises an opening switching assembly (100), wherein the opening switching assembly (100) is the opening switching assembly described in any one of claims 1 to 7, and the opening switching assembly (100) is used to control the opening and closing of the first opening (210) and the second opening (220).

9. The endotracheal tube according to claim 8, characterized in that When the first opening (210) is located on the side wall of the tube body (200), a guiding inclined surface (230) is provided at the first opening (210).

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