Total lung lavage device for children

Abstract

The invention provides a child whole lung lavage device, relates to the technical field of medical instruments, and is used for improving the lavage efficiency of child whole lung lavage. The child total lung lavage device comprises a first communicating pipe, a second communicating pipe, a first air bag and a second air bag, a liquid channel and a first gas channel are arranged in the first communicating pipe, an oxygen channel and a second gas channel are arranged in the second communicating pipe, the first air bag is communicated with a second outlet branch pipe, and the second air bag is communicated with a fourth outlet branch pipe. A water level sensor is arranged at an outlet of the first outlet branch pipe. By limiting the diameter of the section of the oxygen channel, the bronchoscope can be suitable for children, so that segmented lavage through the bronchoscope can be avoided, catheters with other purposes do not need to be selected for replacement, meanwhile, the single lavage amount can be controlled to be proper through the water level sensor, and the bronchoscope can adapt to children of different age groups; and full lavage is realized on the premise of ensuring safety.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a whole lung lavage device for children. Background Art

[0002] Bronchoalveolar lavage is a commonly used technical means in current children's respiratory diseases, and can be divided into segmental lavage through bronchoscopy and whole lung lavage. Among them, whole lung lavage is mainly used for diseases such as pulmonary alveolar proteinosis, pneumoconiosis, and other diseases such as aspiration pneumonia. At present, double lumen tubes are mainly used for whole lung lavage in adults, but the existing double lumen bronchial catheters are not suitable for most children under 8 years old. For young children, there is currently no whole lung lavage device for children, so they can only be forced to use segmental lavage through bronchoscopy. However, the operation time for each segmental lavage is long, the lavage efficiency is low, and the child needs to repeatedly experience the lavage process under general anesthesia for a long time. Moreover, due to different lung capacities at different ages of children, the amount of liquid infused per single time is also different. Too little infused liquid volume will lead to insufficient lavage and affect the treatment effect, while too much infused liquid volume will lead to complications such as pulmonary edema and water intoxication. Summary of the Invention

[0003] In order to solve the above technical problems, this application provides a whole lung lavage device for children, which is used to improve the lavage efficiency of whole lung lavage for children and improve the safety of lavage.

[0004] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0005] The embodiments of this application provide a whole lung lavage device for children, and the whole lung lavage device for children includes:

[0006] A first connecting pipe, a liquid channel and a first gas channel are arranged in the first connecting pipe. One end of the first connecting pipe is provided with a first inlet branch pipe and a second inlet branch pipe, and the other end is provided with a first outlet branch pipe and a second outlet branch pipe. The first inlet branch pipe and the first outlet branch pipe are communicated through the liquid channel, and a water level sensor is arranged at the outlet of the first outlet branch pipe. The first inlet branch pipe is used to connect the infusion of lavage saline, the first outlet branch pipe is used to be inserted into one of the left main bronchus or the right main bronchus of the patient, and the second inlet branch pipe and the second outlet branch pipe are communicated through the first gas channel;

[0007] A first airbag, which is communicated with the second outlet branch pipe. The second inlet branch pipe is used to connect an inflation source. A first through hole is arranged on the first airbag, and the first outlet branch pipe passes through the first through hole and is in sealing cooperation with the hole wall of the first through hole;

[0008] The second connecting pipe is provided with an oxygen channel and a second gas channel therein. One end of the second connecting pipe is provided with a third inlet branch pipe and a fourth inlet branch pipe, and the other end is provided with a third outlet branch pipe and a fourth outlet branch pipe. The third inlet branch pipe and the third outlet branch pipe are communicated through the oxygen channel. The third inlet branch pipe is used for connecting an oxygen source, and the third outlet branch pipe is used for inserting into the other one of the left main bronchus or the right main bronchus of the patient or the main airway. The fourth inlet branch pipe and the fourth outlet branch pipe are communicated through the second gas channel. The cross section of the oxygen channel is circular, and the diameter R of the circle satisfies: 3mm ≤ R ≤ 6mm;

[0009] The second airbag is communicated with the fourth outlet branch pipe. The fourth inlet branch pipe is used for connecting an inflation source. The second airbag is provided with a second through hole. The third outlet branch pipe passes through the second through hole and is in sealing fit with the hole wall of the second through hole.

[0010] The technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0011] According to the whole lung lavage device for children of the embodiment of the present application, by restricting the diameter R of the cross section of the oxygen channel, the whole lung lavage device for children can be applicable to children, so that it is possible to avoid segmental lavage through a bronchoscope and there is no need to select a catheter for other purposes for substitution. Furthermore, it is beneficial to improve the efficiency of whole lung lavage for children. At the same time, the setting of the first airbag and the second airbag can avoid the occurrence of liquid leakage during the lavage process, which is beneficial to improving the safety and reliability of the operation, and safe and effective whole lung lavage can be carried out in children. By setting a water level sensor, the single lavage volume can be controlled to an appropriate size to adapt to children of different age groups, ensuring sufficient lavage on the premise of safety. The design is ingenious and has strong practicability.

[0012] In some embodiments, the hole wall of the first through hole is formed into a hard wall surface;

[0013] And / or, the hole wall of the second through hole is formed into a hard wall surface.

[0014] In some embodiments, protrusions are provided on the inner wall of the liquid channel. After the fluid passes through the protrusions, the area corresponding to the protrusions forms a Venturi acceleration area to accelerate the fluid flow.

[0015] In some embodiments, the pediatric whole-lung lavage device further includes a first control valve, a second control valve, and a tee. The first control valve is disposed on the first outlet branch pipe. The second control valve is disposed at the connection between the first airbag and the second outlet branch pipe. The tee includes a first connection pipe section, a second connection pipe section, and a third connection pipe section. The first connection pipe section communicates with the second inlet branch pipe. The second connection pipe section is used to communicate with an inflation source. The third connection pipe section is used to connect to a pressure sensor.

[0016] In some embodiments, the pediatric whole-lung lavage device further includes a vibrating vest and a controller. The vibrating vest and the pressure sensor are both electrically connected to the controller. The water level sensor is electrically connected to the controller.

[0017] In some embodiments, the pediatric whole-lung lavage device further includes a flow sensor. The flow sensor is electrically connected to the controller. The flow sensor is disposed on the first inlet branch pipe.

[0018] In some embodiments, the pediatric whole-lung lavage device further includes a first camera. The first camera is disposed on the first outlet branch pipe;

[0019] And / or, the pediatric whole-lung lavage device further includes a second camera. The second camera is disposed on the third outlet branch pipe.

[0020] In some embodiments, the pediatric whole-lung lavage device further includes a fixing pipe. A fixing belt is provided on the side wall of the fixing pipe. The first communication pipe and the second communication pipe pass through the fixing pipe.

[0021] In some embodiments, a first fixing member is provided inside the fixing pipe. The first fixing member has a first fixing cavity. The inner wall of the first fixing cavity has a plurality of grooves. A first telescopic member is provided in the grooves. The first telescopic member is used to abut against the first communication pipe and / or the second communication pipe.

[0022] In some embodiments, a first elastic member is provided in the grooves. One end of the first elastic member is connected to the bottom wall of the groove, and the other end is connected to the first telescopic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0024] To more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the accompanying drawings required for the description of the embodiments or related technologies. Obviously, for those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of a pediatric whole lung lavage device provided by some embodiments of the present application;

[0026] Figure 2 Schematic diagram of the insertion of the pediatric whole lung lavage device 100 into the lungs provided by some embodiments of the present application;

[0027] Figure 3 Partial schematic diagram of a pediatric whole lung lavage device provided by some embodiments of the present application;

[0028] Figure 4 Schematic diagram of a fixing tube provided by some embodiments of the present application;

[0029] Figure 5 Schematic diagram of a first connecting tube provided by some embodiments of the present application;

[0030] Figure 6 Schematic diagram of a second connecting tube provided by some embodiments of the present application.

[0031] Reference numerals:

[0032] 100, pediatric whole lung lavage device;

[0033] 1, first connecting tube; 11, liquid channel; 111, first inlet branch; 112, first outlet branch; 113, protrusion; 12, first gas channel; 121, second inlet branch; 122, second outlet branch; 13, first control valve; 14, second control valve; 15, water level sensor;

[0034] 2, first airbag; 21, first through hole;

[0035] 3, second connecting tube; 31, oxygen channel; 311, third inlet branch; 312, third outlet branch; 32, second gas channel; 321, fourth inlet branch; 322, fourth outlet branch;

[0036] 4, second airbag; 41, second through hole;

[0037] 5, three-way tube; 51, first connecting pipe section; 511, driving member; 512, sliding member; 52, second connecting pipe section; 521, inflation source; 53, third connecting pipe section; 531, pressure sensor;

[0038] 6, vibrating vest;

[0039] 7. Fixed tube; 71. Fixed belt; 72. First fixing member; 73. First telescopic member;

[0040] 8. Controller. Detailed implementation manner

[0041] In order to more clearly understand the above objects, features and advantages of the present application, the solutions of the present application will be further described below. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0043] The terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0044] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, "connected" may be a detachable connection or a non-detachable connection; it may be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that they are connected to each other and the relative positional relationship after connection remains unchanged. In addition, the orientation terms mentioned in the embodiments of the present application, such as "inner", "outer", etc., are only with reference to the direction of the drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present application.

[0045] In the description of the embodiments of the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element.

[0046] Bronchoalveolar lavage is a commonly used technical means in current pediatric respiratory diseases and can be divided into segmental lavage through a bronchoscope and total lung lavage. Among them, total lung lavage is mainly used for diseases such as pulmonary alveolar proteinosis, pneumoconiosis, and other diseases such as aspiration pneumonia. Currently, in adults, total lung lavage is mainly performed using a double-lumen tube, but the existing double-lumen bronchial catheter is not suitable for most children under 8 years old, and the positions of the two catheters of the double-lumen bronchial catheter are fixed, and only unilateral bronchial occlusion can be performed. When performing right total lung lavage, there is a possibility of liquid leakage into the ventilated lung. For young children, there is currently no pediatric total lung lavage device, so segmental lavage through a bronchoscope has to be used, but each segmental lavage operation takes a long time and the lavage efficiency is low, and the child needs to repeatedly undergo the lavage process under general anesthesia for a long time.

[0047] To solve the above technical problems, the present application provides a pediatric total lung lavage device.

[0048] Please refer to Figure 1 and Figure 2 , Figure 1 which are schematic diagrams of the pediatric total lung lavage device provided by some embodiments of the present application, Figure 2 and

[0049] Please refer to Figure 5 as shown, a liquid channel 11 and a first gas channel 12 are provided in the first connecting tube 1. One end of the first connecting tube 1 is provided with a first inlet branch tube 111 and a second inlet branch tube 121, and the other end is provided with a first outlet branch tube 112 and a second outlet branch tube 122.

[0050] The first inlet branch pipe 111 and the first outlet branch pipe 112 are connected through the liquid channel 11. The first inlet branch pipe 111 is used to connect the irrigation saline for infusion. The first outlet branch pipe 112 is used to be inserted into one of the left main bronchus or the right main bronchus of the patient, so that the irrigation saline in the liquid channel 11 can enter the lungs successively through the first inlet branch pipe 111, the liquid channel 11 and the first outlet branch pipe 112, realizing lung lavage.

[0051] The second inlet branch pipe 121 and the second outlet branch pipe 122 are connected through the first gas channel 12. The first airbag 2 is connected to the second outlet branch pipe 122. The second inlet branch pipe 121 is used to connect an inflation source. That is, when the inflation gas source inflates, the gas can enter the first airbag 2 successively through the second inlet branch pipe 121, the first gas channel 12 and the second outlet branch pipe 122. Specifically, the first airbag 2 can freely expand or contract. Then when the first airbag 2 is in use, the first airbag 2 abuts against the tracheal wall to avoid displacement, and it can prevent the first outlet branch pipe 112 from piercing the bronchial wall when the liquid channel 11 outputs irrigation saline or extracts waste liquid, which is beneficial to improving the safety and reliability of the treatment.

[0052] The first airbag 2 is provided with a first through hole 21. The first outlet branch pipe 112 passes through the first through hole 21 and is in sealing cooperation with the hole wall of the first through hole 21, which can prevent the irrigation saline or waste liquid from overflowing during lavage and ensure the safety of the operation.

[0053] Please refer to Figure 6 As shown, an oxygen channel 31 and a second gas channel 32 are arranged in the second connecting pipe 3. One end of the second connecting pipe 3 is provided with a third inlet branch pipe 311 and a fourth inlet branch pipe 321, and the other end is provided with a third outlet branch pipe 312 and a fourth outlet branch pipe 322.

[0054] The third inlet branch pipe 311 and the third outlet branch pipe 312 are connected through the oxygen channel 31. The third inlet branch pipe 311 is used to connect an oxygen source. The third outlet branch pipe 312 is used to be inserted into the other one of the left main bronchus or the right main bronchus of the patient or the main airway, so that the oxygen in the oxygen channel 31 can enter the lungs successively through the third inlet branch pipe 311, the oxygen channel 31 and the third outlet branch pipe 312 to ensure normal breathing.

[0055] The cross-section of the oxygen channel 31 is circular, and the diameter R of the circle satisfies: 3mm ≤ R ≤ 6mm. Exemplarily, the diameter R of the oxygen channel 31 can be 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, etc. By restricting the diameter R of the oxygen channel 31, the second connecting pipe 3 can be applicable to children of different ages, which is beneficial to improving the lavage efficiency.

[0056] It should be noted that both the first connecting pipe 1 and the second connecting pipe 3 are thin-walled pipe fittings. On the premise that R satisfies the above conditions, the outer diameter of the second connecting pipe 3 can also be suitable for children of different ages, which can not only ensure that the second connecting pipe 3 has a smaller size, but also ensure the smooth progress of lavage.

[0057] The fourth inlet branch pipe 321 and the fourth outlet branch pipe 322 are connected through the second gas passage 32. The second airbag 4 is connected to the fourth outlet branch pipe 322. The fourth inlet branch pipe 321 is used to connect to an inflation source. That is, when the inflation gas source inflates, the gas can sequentially pass through the fourth inlet branch pipe 321, the second gas passage 32 and the fourth outlet branch pipe 322 and enter the second airbag 4. Specifically, the second airbag 4 can expand or contract freely. Then when the second airbag 4 is used, it can block the other bronchus, so as to prevent the waste liquid on the lavage side of the lung from flowing into the other bronchus, and further avoid affecting the normal breathing of the other bronchus.

[0058] The second airbag 4 is provided with a second through hole 41. The third outlet branch pipe 312 passes through the second through hole 41 and is in sealing cooperation with the hole wall of the second through hole 41, which can prevent the liquid on the lavage side from entering the breathing side and ensure the safety of the operation.

[0059] Please continue to refer to Figure 1 and Figure 2 , in some embodiments, the pediatric whole lung lavage device 100 may further include a water level sensor 15, and the water level sensor 15 is arranged at the outlet of the first outlet branch pipe 112. Thus, the amount of saline infused into the lung can be detected by the water level sensor 15, and then the single lavage amount can be controlled to an appropriate size to adapt to children of different ages, ensuring sufficient lavage under the premise of safety.

[0060] The pediatric whole lung lavage device 100 according to the embodiment of the present application is applicable to the pediatric airway. The first connecting pipe 1 and the second connecting pipe 3 are independent of each other and can be adjusted separately to penetrate into the airway. In actual use, when lavaging the left lung, the first connecting pipe 1 enters the left main bronchus for blocking, and the second connecting pipe 3 can be located in the main airway or the right main bronchus; when lavaging the right lung, the first connecting pipe 1 enters the right main bronchus for blocking, and the second connecting pipe 3 enters the left main bronchus for blocking. In this way, the possibility of liquid leakage can be further eliminated. In addition, only one lung is lavaged each time, and the other lung is lavaged after 1 week. By restricting the diameter R of the oxygen channel 31, the pediatric whole lung lavage device 100 can be applicable to children, thus avoiding the use of segmental lavage through a bronchoscope and eliminating the need to select a catheter for other purposes, which is beneficial to improving the efficiency of whole lung lavage for children and making the whole lung lavage more sufficient. At the same time, the setting of the first airbag 2 and the second airbag 4 is beneficial to improving the safety and reliability of the operation.

[0061] Furthermore, a liquid channel 11 and a first gas channel 12 are directly formed inside the first connecting pipe 1, and an oxygen channel 31 and a second gas channel 32 are directly formed inside the second connecting pipe 3. That is to say, the positions of the liquid channel 11 and the first gas channel 12 are relatively fixed, and the positions of the oxygen channel 31 and the second gas channel 32 are relatively fixed. The four channels can be inserted only twice. Compared with four separate pipe structures, the present application can ensure the surgical efficiency while ensuring the relative positions are fixed and avoiding displacement.

[0062] In some embodiments, the pore wall of the first through hole 21 is formed as a rigid wall surface; and / or, the pore wall of the second through hole 41 is formed as a rigid wall surface. In this way, during the inflation process of the first airbag 2 and the second airbag 4, they will only expand outwards. The first through hole 21 will not exert pressure on the first outlet branch pipe 112, and the pore wall of the second through hole 41 will not exert pressure on the third outlet branch pipe 312, avoiding poor internal fluid circulation caused by extrusion and ensuring the fluid flow effect in the channel.

[0063] Please continue to refer to Figure 5 As shown, a protrusion 113 is provided on the inner wall of the liquid channel 11. After the fluid passes through the protrusion 113, the area corresponding to the position of the protrusion 113 forms a Venturi acceleration area to accelerate the fluid flow. It can be understood that when the fluid passes through the reduced cross-section of the flow passage, the fluid velocity increases. The fluid velocity is inversely proportional to the cross-section of the flow passage. By providing the protrusion 113 on the inner wall of the liquid channel 11, the cross-section of the flow passage in the liquid channel 11 can be changed, thereby increasing the velocity of the fluid flowing through, increasing the infusion speed of the lavage saline and the extraction speed of the waste liquid, improving the surgical efficiency, reducing the surgical time, and avoiding long-term anesthesia of the child.

[0064] Please continue to refer to Figure 1 and Figure 2 , in some embodiments, the pediatric whole lung lavage device 100 may further include a first control valve 13, a second control valve 14, and a three-way pipe 5. The first control valve 13 may be disposed on the first outlet branch pipe 112. The second control valve 14 may be disposed at the connection between the first airbag 2 and the first connecting pipe 1. Then, the connection between the first outlet branch pipe 112 and the outside can be controlled by the first control valve 13, and the connection between the first airbag 2 and the first connecting pipe 1 can be controlled by the second control valve 14.

[0065] The three-way pipe 5 may include a first connection pipe segment 51, a second connection pipe segment 52, and a third connection pipe segment 53. The first connection pipe segment 51 may be connected to the second inlet branch pipe 121. The second connection pipe segment 52 may be used to connect to an inflation source 521, and the third connection pipe segment 53 is used to connect to a pressure sensor 531. Specifically, the first airbag 2 can be inflated through the inflation source 521, and the pressure of the first airbag 2 can be detected through the third connection pipe segment 53.

[0066] During the whole lung lavage process, leakage of the lavage site is the most common complication, mostly caused by the displacement of the airbag during repeated lavages. It not only affects the lavage efficiency, but may also affect the oxygenation on the ventilated side and lead to hypoxemia. In the related art, the lavage device does not have a relevant monitoring device and cannot detect it in time. In this application, by setting a pressure sensor 531 connected to the third connecting pipe section 53, when the pressure of the first airbag 2 reaches a certain threshold, inflation can be stopped, thereby preventing excessive gas and avoiding excessive pressure on the airway wall and mucosal damage. At the same time, when the first airbag 2 is displaced during the lavage process, it can be detected in time to avoid leakage, which is beneficial to improving the safety and reliability of the operation.

[0067] It should be noted that a catheter connected to the first airbag 2 can also be separately provided in the second communication pipe 3, and a corresponding control valve can be provided on the catheter, which is beneficial to reducing costs. The second airbag 4 can also be inflated through a three-way pipe 5.

[0068] Please continue to refer to Figure 1 and Figure 2 In some embodiments, the whole lung lavage device 100 for children may further include a vibrating vest 6 and a controller 8. The vibrating vest 6 and the pressure sensor 531 are both electrically connected to the controller 8. Among them, the vibrating vest 6 can vibrate the saline in the patient's lungs after the patient has completed the infusion of saline. Thus, when the pressure sensor 531 detects a change in the pressure of the first airbag 2, that is, the position of the first airbag 2 changes or the first airbag 2 is damaged, the vibrating vest 6 can be controlled by the controller 8 to stop vibrating.

[0069] The water level sensor 15 is electrically connected to the controller 8, and the water level sensor 15 is arranged on the first outlet branch pipe 112. Thus, the amount of saline infused into the lungs can be detected by the water level sensor 15. When the infused amount reaches the requirement, the liquid passage 11 can be closed by the first control valve 13, and then the vibrating vest 6 can be controlled to vibrate.

[0070] Exemplarily, the whole lung lavage device 100 for children may further include a flow sensor, and the flow sensor is electrically connected to the controller 8. The flow sensor can be arranged on the first inlet branch pipe 111 and is used to detect the amount of liquid drawn out. Thus, the amount of liquid drawn out can be detected by the flow sensor to prevent pulmonary edema caused by excessive difference between the inflow and outflow, which is beneficial to improving the safety and reliability of the operation. And it is also beneficial to improve the intelligent level of the whole lung lavage device 100 for children.

[0071] Please continue to refer to Figure 1 and Figure 2, in some embodiments, the pediatric whole lung lavage device 100 may further include a first camera. The first camera is disposed on the first outlet branch pipe 112. By providing the first camera, it is possible to assist in adjusting the position of the first airbag 2 and simultaneously observe whether there is saline leakage at the sealing position of the first airbag 2, thereby facilitating improving the safety and reliability of the operation.

[0072] Please continue to refer to Figure 1 and Figure 2 , in some embodiments, the pediatric whole lung lavage device 100 may further include a second camera. The second camera is disposed on the third outlet branch pipe 312. By providing the second camera, it is possible to observe and assist in adjusting the position of the second airbag 4 and simultaneously observe whether there is saline infiltration at the sealing position of the second airbag 4, thereby facilitating improving the safety and reliability of the operation.

[0073] Please refer to Figure 2 and Figure 3 , Figure 3 is a partial schematic view of the pediatric whole lung lavage device provided in some embodiments of the present application. In some embodiments, the pediatric whole lung lavage device 100 may further include a driving member 511 and a sliding member 512. In the direction from the third outlet branch pipe 312 to the third inlet branch pipe 311, the inner sidewall of the first connecting pipe segment 51 inclines towards the direction close to the first communication pipe 1. The inner sidewall of the first connecting pipe segment 51 may have a plurality of sliding channels. The sliding member 512 is slidably disposed in the sliding channels, and the driving member 511 is used to drive the sliding member 512 to move. Among them, the extending direction of the sliding channels is the same as the extending direction of the first connecting pipe segment 51. Thus, by driving the sliding member 512 to move in the sliding channels by the driving member 511, the sliding member 512 of the first connecting pipe segment 51 can abut against the oxygen channel 31, so as to clamp oxygen channels 31 with different pipe diameters, and further facilitate improving the convenience of use of the pediatric whole lung lavage device 100.

[0074] Please refer to Figure 4 , Figure 4 is a schematic view of the fixing pipe provided in some embodiments of the present application. In some embodiments, the pediatric whole lung lavage device 100 may further include a fixing pipe 7. A fixing belt 71 may be provided on the sidewall of the fixing pipe 7. The first communication pipe 1 and the second communication pipe 3 pass through the fixing pipe 7. Thus, the portions of the second communication pipe 3 and the first communication pipe 1 located outside the patient can be fixed by the fixing pipe 7, and the fixing pipe 7 can be connected to the patient's head or other parts through the fixing belt 71 to fix the fixing pipe 7. Such a setting has a simple structure, thereby facilitating reducing the manufacturing cost of the pediatric whole lung lavage device 100.

[0075] Please continue to refer to Figure 4, in some embodiments, a first fixing member 72 may be provided in the fixing tube 7. The first fixing member 72 has a first fixing cavity. The inner wall of the first fixing cavity has a plurality of grooves. A first telescopic member 73 is provided in the grooves. The first telescopic member 73 is used to abut against the first communication tube 1 and / or the second communication tube 3. Specifically, the plurality of grooves are spaced in the circumferential direction of the first fixing cavity, and the first telescopic member 73 is telescopically arranged in the grooves. When it is necessary to fix the first communication tube 1 and / or the second communication tube 3, the first telescopic member 73 extends out to abut against the first communication tube 1 and / or the second communication tube 3. Such a fixing method is simple. It can fix the first communication tube 1 or the second communication tube 3 alone, or can fix the first communication tube 1 and the second communication tube 3 at the same time, which is beneficial to reducing the manufacturing cost of the children's whole lung lavage device 100.

[0076] Please continue to refer to Figure 4 , in some embodiments, a first elastic member may be provided in the groove. One end of the first elastic member is connected to the bottom wall of the groove, and the other end is connected to the first telescopic member 73. Thus, the first telescopic member 73 can clamp the first communication tube 1 through the first elastic member, and the clamping method is simple, which is beneficial to reducing the manufacturing cost of the children's whole lung lavage device 100. It should be noted that the fixing method of the second communication tube 3 on the fixing tube 7 is the same as that of the first communication tube 1 on the fixing tube 7, and will not be elaborated in this application.

[0077] In the description of this specification, specific features, structures, materials, or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0078] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A pediatric whole lung lavage device, characterized in that, The pediatric whole lung lavage device comprises: a first connecting pipe, wherein a liquid channel and a first gas channel are arranged in the first connecting pipe, a first inlet branch pipe and a second inlet branch pipe are arranged at one end of the first connecting pipe, and a first outlet branch pipe and a second outlet branch pipe are arranged at the other end, the first inlet branch pipe and the first outlet branch pipe are connected via the liquid channel, and a water level sensor is arranged at the outlet of the first outlet branch pipe, the first inlet branch pipe is used to connect the irrigation saline for injection, the first outlet branch pipe is used to be inserted into one of the left main bronchus or the right main bronchus of the patient, and the second inlet branch pipe and the second outlet branch pipe are connected via the first gas channel; A first airbag is connected to the second outlet branch pipe, the second inlet branch pipe is used to connect to an inflation source, the first airbag is provided with a first through hole, the first outlet branch pipe passes through the first through hole and is sealed with a hole wall of the first through hole; a second connecting pipe, wherein an oxygen channel and a second gas channel are arranged in the second connecting pipe, a third inlet branch and a fourth inlet branch are arranged at one end of the second connecting pipe, and a third outlet branch and a fourth outlet branch are arranged at the other end, the third inlet branch and the third outlet branch are communicated with each other through the oxygen channel, the third inlet branch is used to connect an oxygen source, the third outlet branch is used to be inserted into the other one of the left main bronchus or the right main bronchus of the patient or the main airway, and the fourth inlet branch and the fourth outlet branch are communicated with each other through the second gas channel; the cross section of the oxygen channel is circular, and the diameter R of the circle satisfies: 3mm≤R≤6mm; The second airbag is connected to the fourth outlet branch pipe, the fourth inlet branch pipe is used to connect to the inflation source, the second airbag is provided with a second through hole, the third outlet branch pipe passes through the second through hole and is sealed with the hole wall of the second through hole.

2. The pediatric whole lung lavage device according to claim 1, wherein The hole wall of the first via hole is formed as a hard wall surface; And / or, the hole wall of the second via hole is formed as a hard wall surface.

3. The pediatric whole lung lavage device according to claim 1, wherein, The inner wall of the liquid channel is provided with a protrusion. After the fluid passes through the protrusion, the area at the corresponding position of the protrusion forms a Venturi acceleration zone to accelerate the flow of the fluid.

4. The pediatric whole lung lavage device according to claim 1, wherein The pediatric whole lung lavage device also includes a first control valve, a second control valve and a three-way pipe, the first control valve is arranged on the first outlet branch, the second control valve is arranged at the connection point between the first air bag and the second outlet branch, the three-way pipe includes a first connecting pipe section, a second connecting pipe section and a third connecting pipe section, the first connecting pipe section is connected to the second inlet branch, the second connecting pipe section is used to connect to the inflation source, and the third connecting pipe section is used to connect to the pressure sensor.

5. The pediatric whole lung lavage device according to claim 4, characterized in that, The children's whole lung lavage device also includes a vibrating vest and a controller. The vibrating vest and the pressure sensor are both electrically connected to the controller, and the water level sensor is electrically connected to the controller.

6. The pediatric whole lung lavage device according to claim 5, wherein, The pediatric whole lung lavage device further includes a flow sensor, which is electrically connected to the controller and is disposed on the first inlet branch.

7. The whole lung lavage device for children according to any one of claims 1 to 6, characterized in that, The pediatric whole lung lavage device further includes a first camera, and the first camera is disposed on the first outlet branch pipe; and / or, the pediatric whole lung lavage device further includes a second camera, and the second camera is disposed on the third outlet branch pipe.

8. The whole lung lavage device for children according to any one of claims 1 to 6, characterized in that, The pediatric whole lung lavage device further includes a fixing pipe, a fixing belt is provided on the side wall of the fixing pipe, and the first connecting pipe and the second connecting pipe penetrate through the fixing pipe.

9. The pediatric whole lung lavage device according to claim 8, characterized in that, A first fixing member is disposed in the fixing pipe, the first fixing member has a first fixing cavity, the inner wall of the first fixing cavity has a plurality of grooves, and a first telescopic member is disposed in the grooves, and the first telescopic member is used to abut against the first connecting pipe and / or the second connecting pipe.

10. The pediatric whole lung lavage device according to claim 9, characterized in that, A first elastic member is disposed in the groove, one end of the first elastic member is connected to the bottom wall of the groove, and the other end is connected to the first telescopic member.

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