Large capacity whole lung lavage device

Abstract

This invention discloses a large-capacity whole lung lavage device, relating to the field of medical lung lavage technology. It includes an lavage bottle filled with physiological saline, an lavage component at the bottom of the bottle, and an outlet tube connected to the lavage bottle. A three-way connector is located at one end of the outlet tube, with a negative pressure tube and an lavage tube connected to the other two ends of the three-way connector, respectively. The lavage tube extends to one lung in the patient. Pulling a ring activates a traction rope that pulls the topmost cleaning disc, which in turn pulls subsequent cleaning discs via a connecting traction wire, and so on. This causes multiple cleaning discs to rotate simultaneously, breaking up and dispersing the turbid fluid. Pulling another ring then causes the cleaning discs to rotate back to their initial state, further breaking up and dispersing the turbid fluid. This significantly reduces the probability of residual fluid agglomerating and clogging in subsequent tubing, effectively mitigating the risk of clogging in the lavage tube by the return fluid. The device is simple to operate and highly effective.

Description

Technical Field

[0001] This invention relates to the field of medical lung lavage technology, and more specifically, to a large-capacity whole lung lavage device. Background Technology

[0002] Whole lung lavage is an invasive procedure requiring the coordinated use of multiple specialized equipment. The core equipment is configured around three main aspects: airway management, vital sign monitoring, and the lavage procedure itself. It is primarily used to treat diseases such as pulmonary alveolar proteinosis and pneumoconiosis, removing protein-like substances or dust deposited in the alveoli through large volumes of lavage fluid. During whole lung lavage, normal saline is first infused into one lung until the apex is full. Gravity or negative pressure suction is then used to drain the lavage fluid, observing its color. This process is repeated, while simultaneously monitoring vital signs such as blood oxygen saturation and heart rate, until the drainage fluid becomes clear, at which point lavage is stopped.

[0003] However, during the initial drainage, the residual fluid in the patient's body is turbid and easily blocks the tubes, requiring increased suction or the use of tools to clear the blockage. The former not only easily leads to tube expansion and deformation but also causes sudden increases and decreases in pressure within the tubes; while the latter, with existing tools, is not very effective at clearing the blockage and can increase the patient's discomfort during treatment. For example, biopsy forceps are difficult to operate and not very convenient to use. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a large-capacity whole lung lavage device.

[0005] The technical solution is as follows: A large-capacity whole lung lavage device includes an lavage bottle filled with physiological saline. An lavage component is located at the bottom of the lavage bottle. The lavage component includes an outlet tube connected to the lavage bottle, and a three-way connector at one end of the outlet tube. The other two ends of the three-way connector are connected to a negative pressure tube and an lavage tube, respectively. The lavage tube extends to one lung in the patient's body to draw physiological saline into the lung for lavage. A respiratory assist component is located outside the lavage component. The respiratory assist component includes a breathing tube, one end of which extends to the other lung in the patient's body to assist breathing in the other lung during lavage. An unblocking component is located inside the lavage tube. The unblocking component includes multiple cleaning discs equidistantly rotating on the inner wall of the lavage tube. The cleaning discs exist in two states: a first state is a static state, in which the multiple cleaning discs are perpendicular to the cross-section of the lavage tube, reducing interference with normal fluid flow; the second state is a moving state, in which the multiple cleaning discs rotate synchronously to break up and disperse any returning residual fluid.

[0006] Furthermore, the unblocking component also includes a rotating shaft fixedly connected to the inner wall of the cleaning plate, and a hollow shaft is rotatably connected to the end of the rotating shaft, the hollow shaft being fixedly connected to the inner wall of the irrigation pipe.

[0007] Furthermore, two traction wires are fixedly connected to the multiple cleaning plates. The traction wires are close to the outer edge of the cleaning plates, and pulling the traction wires drives the multiple cleaning plates to rotate synchronously.

[0008] Furthermore, a driving component is provided at the outer end of the uppermost cleaning plate. The driving component includes a pair of pull ropes fixedly connected to the uppermost cleaning plate, and a pull ring is fixedly connected to the end of the pull rope.

[0009] Furthermore, a sealing tube extends from the outer end of the irrigation tube, and a sealing hole is provided on the sealing tube. One end of the pulling rope extends movably to the outside of the sealing hole, and a sealing ring is provided between the sealing hole and the pulling rope.

[0010] Furthermore, the hollow shaft is provided with a positioning component, which includes a locking magnetic ring fixedly connected to the inner wall of the hollow shaft. A pair of positioning magnetic plates are fixedly connected to the outer end of the shaft. The pair of positioning magnetic plates are symmetrically distributed. The positioning magnetic plates are attracted by the locking magnetic ring, forcing the cleaning plate to stop. It is perpendicular to the liquid surface, allowing the liquid to pass through smoothly.

[0011] Furthermore, the interior of the three-way pipe is provided with disassembly and assembly components, which include multiple limiting grooves. The outer ends of the ports of the irrigation pipe, negative pressure pipe and liquid outlet pipe are all provided with locking buckles, which are telescopic components. The telescopic components enter the limiting grooves to complete the assembly.

[0012] Furthermore, the telescopic component is an arc-shaped block and an elastic component fixedly connected to the arc-shaped block. The outer end of the three-way pipe is provided with multiple movable holes. The inner wall of the movable hole is slidably connected with a contact rod. A reset component is also provided between the contact rod and the three-way pipe.

[0013] Furthermore, a first fixing ring is fixedly connected to the inner wall of the three-way pipe, and a second fixing ring is fixedly sleeved on the outer end of the ports of the irrigation pipe, the negative pressure pipe and the liquid outlet pipe. A sealing gasket is provided on one side of the first fixing ring and the second fixing ring.

[0014] Furthermore, the cleaning plate is circular, and its outer side has multiple evenly distributed liquid channels.

[0015] Based on the above, the beneficial effects of the large-capacity whole lung lavage device of the present invention are as follows: When the ring is pulled, the connecting traction rope pulls the top cleaning plate, which in turn pulls the cleaning plates behind it via the connecting traction wire, and so on, causing multiple cleaning plates to rotate simultaneously, breaking up and dispersing the turbid liquid. Then, pulling another ring causes the multiple cleaning plates to not only rotate back to their initial state, but also to break up and disperse the turbid liquid again, greatly reducing the probability of residual liquid agglomerating and clogging in subsequent pipelines, effectively improving the risk of clogging in the flushing pipe with return fluid. The operation is simple and the effect is significant. When the traction rope and traction wire are pulled, the cleaning plate will rotate significantly. When it rotates to between 160 and 175 degrees, it will stop under the magnetic force of the positioning magnetic plate and the locking magnetic ring. This ensures that the cleaning plate stops at the locking magnetic ring whether it rotates forward or backward, thus keeping the cleaning plate perpendicular to the liquid surface without external pulling, minimizing the impact on liquid flow. At the same time, the magnetic force of the positioning magnetic plate and the locking magnetic ring also makes it difficult for the cleaning plate to sway with the liquid flow when it is stationary, effectively avoiding the problem of positional deviation. By pushing the outlet tube into the tee tube, the arc-shaped block begins to compress the spring, causing the arc-shaped block to enter a contracted state. After a pair of sealing gaskets come into contact with each other, the outlet tube is rotated until the arc-shaped block outside the outlet tube enters the limiting groove and locks in place. At this point, neither insertion nor rotation can separate the outlet tube and the tee tube. By holding the part of the tee tube near the end, four pressure plates can be pressed down simultaneously. The pressure plates move inward and compress the arc-shaped block, causing it to separate from the limiting groove. Then, simply pull out the outlet tube, thus achieving the purpose of quick assembly and disassembly. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the entire invention; Figure 2 This is a three-dimensional schematic diagram of the overall back of the present invention; Figure 3 This is a partial cross-sectional view of the irrigation tube and breathing tube of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the unblocking component of the present invention; Figure 6 This is a three-dimensional schematic diagram of the cleaning plate of the present invention; Figure 7 This is a half-section perspective view of the positioning component of the present invention; Figure 8 This is a schematic diagram of the external appearance of the tee pipe of the present invention; Figure 9 This is a cross-sectional plan view of the three-way pipe portion of the present invention; Figure 10 For the present invention Figure 9 Enlarged diagram of point B in the image.

[0017] The reference numerals in the accompanying drawings of this invention are as follows: 1. Filling bottles; 2. Flushing components; 21. Discharge pipe; 22. T-connector; 23. Negative pressure pipe; 24. Flushing pipe; 3. Respiratory support components; 31. Breathing tube; 32. Ventilator; 4. Unblocking components; 41. Cleaning disc; 42. Rotating shaft; 43. Hollow shaft; 44. Traction wire; 45. Fluid passage tank; 5. Drive components; 51. Pull rope; 52. Sealing tube; 53. Pull ring; 6. Positioning component; 61. Locking magnetic ring; 62. Positioning magnetic plate; 7. Disassembly and assembly components; 71. Pressure plate; 72. Limiting groove; 73. Locking buckle; 731. Arc block; 732. Elastic element; 74. Contact rod; 75. First fixing ring; 76. Second fixing ring. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] The embodiments provided by the present invention will be described in detail below: like Figures 1 to 5 As shown, the large-capacity whole lung lavage device includes an lavage bottle 1 filled with physiological saline, an lavage component 2 at the bottom of the lavage bottle 1, an outlet tube 21 connected to the lavage bottle 1, a three-way tube 22 at the end of the outlet tube 21, and a negative pressure tube 23 and an lavage tube 24 respectively connected to the other two ends of the three-way tube 22. The lavage tube 24 extends to one lung in the patient's body and is used to draw physiological saline into the lung and lavage it. The lavage component 2 is provided with a breathing assist component 3 on its exterior. The breathing assist component 3 includes a breathing tube 31, one end of which extends to the other lung in the patient's body to assist breathing in the other lung when lavaging one lung. The flushing pipe 24 is equipped with a dredging component 4, which includes multiple cleaning blades 41 that are equidistantly rotatably disposed on the inner wall of the flushing pipe 24. The cleaning disc 41 exists in two states. The first state is a stationary state, in which multiple cleaning discs 41 are perpendicular to the cross-section of the flushing pipe 24, reducing interference with the normal flow of liquid. The second state is a moving state, in which multiple cleaning discs 41 rotate synchronously to break up and disperse the backflowing residual liquid. It should be noted that a flow control valve can be installed inside the discharge tube 21, a negative pressure pump is connected to the bottom of the negative pressure tube 23, the pressure of the negative pressure pump is adjustable, and a ventilator 32 is connected to the top of the breathing tube 31. The ventilator 32 is connected to a multi-functional monitor to monitor the patient's vital signs such as blood oxygen saturation and heart rate.

[0020] Specifically, the lower two-thirds of the lavage tube 24 and the breathing tube 31 are bonded together and inserted into the patient's body together. At the same time, the fiberoptic bronchoscope needs to be inserted into the lavage tube 24 to determine its position. After confirming that the position is correct, the fiberoptic bronchoscope is removed. If necessary, the position of the distal tube opening can also be confirmed again during the operation by using the fiberoptic bronchoscope. This is the existing technology and will not be elaborated on here.

[0021] The unblocking component 4 also includes a rotating shaft 42 fixedly connected to the inner wall of the cleaning plate 41. A hollow shaft 43 is rotatably connected to the end of the rotating shaft 42, and the hollow shaft 43 is fixedly connected to the inner wall of the irrigation pipe 24.

[0022] Two traction wires 44 are fixedly connected to the multiple cleaning plates 41. The traction wires 44 are close to the outer edge of the cleaning plate 41. During the reciprocating rotation of the uppermost cleaning plate 41, the multiple cleaning plates 41 below are driven to reciprocate synchronously through the pair of traction wires 44.

[0023] The outer end of the uppermost cleaning plate 41 is provided with a driving component 5. The driving component 5 includes a pair of pull ropes 51 fixedly connected to the uppermost cleaning plate 41, and the ends of the pull ropes 51 are fixedly connected with pull rings 53.

[0024] When the pull ring is pulled, the pull rope 51 (preferably a silk rope) connected to it pulls the uppermost cleaning plate 41, and the uppermost cleaning plate 41, in turn, pulls the cleaning plate 41 behind it through the traction wire 44, and so on, so that multiple cleaning plates 41 rotate simultaneously, breaking and dispersing the turbid liquid. Then, pulling another pull ring causes multiple cleaning plates 41 to not only rotate back to their initial state, but also break and disperse the turbid liquid again, greatly reducing the probability of residual liquid agglomerating and clogging in subsequent pipelines, effectively improving the risk of clogging of return liquid in the flushing pipe 24. The operation is simple and the effect is significant.

[0025] The cleaning plate 41 is circular, and multiple evenly distributed liquid channels 45 are provided on its outer side.

[0026] By opening the liquid passage trough 45, not only are the cutting parts increased (each liquid passage trough 45 area can cut and disperse the turbid liquid), improving the breaking effect of the turbid liquid, but also, in the process of diversion, setting multiple liquid passage troughs 45 will not reduce the flow rate too much, and the liquid discharge movement state of the cleaning plate 41 is in a horizontal position, which has minimal impact on the liquid flow.

[0027] Furthermore, since the cleaning plate 41 is in both forward and reverse motion, even if there is suspended turbid liquid, it will be carried away from the cleaning plate 41 by suction when it rotates to the outlet direction.

[0028] The actual surgical procedure is as follows: Preoperative procedures: The three-way tube 22 is connected to the discharge tube 21, the negative pressure tube 23 and the irrigation tube 24 in sequence. The irrigation tube 24 and the breathing tube 31 are inserted into the patient's mouth. The position is assisted by a fiberoptic bronchoscope so that the irrigation tube 24 is inserted into one lung and the breathing tube 31 is inserted into the other lung, ensuring that the patient can breathe normally in one lung during irrigation. The patient's blood oxygen saturation, heart rate and other vital signs are monitored at any time by a multi-functional monitor to ensure the safety of the operation. Intraoperative procedure: Control the three-way valve to connect the outlet tube 21 with the irrigation tube 24, and close the port of the negative pressure tube 23. At this time, control the flow control valve of the irrigation bottle 1 to start irrigation until 500-1500ml of solution is infused into the lungs. Then control the three-way valve to connect the negative pressure tube 23 with the irrigation tube 24, and close the port of the outlet tube 21. Slowly aspirate the residual fluid mixed with saline from the lungs. During this process, it is necessary to intermittently pull the two pull rings to make the cleaning plate 41 rotate forward and backward to break up and disperse the turbid residual fluid and reduce the risk of clumping and blockage. Finally, repeat the above operation. The total volume of unilateral lung lavage can reach 10-20L until the drainage fluid is clear. Whether to perform bilateral lung lavage depends on the patient's condition. Postoperative procedures: Remove irrigation tube 24 and breathing tube 31, and observe the patient's physical condition.

[0029] A sealing tube 52 extends from the outer end of the irrigation tube 24. A sealing hole is provided on the sealing tube 52. One end of the pull rope 51 extends through the outside of the sealing hole. There is a sealing ring between the sealing hole and the pull rope 51.

[0030] To ensure the sealing of the drainage work, the irrigation tube 24 and the sealing tube 52 are connected as one unit. The sealing tube 52 is located outside the patient's body during the actual operation. The sealing ring can ensure that the liquid overflows when the traction rope 51 is pulled. The bottom of the sealing ring is provided with a hanging ring, which is sleeved on the outer end of the traction rope 51. When the traction rope 51 is pulled out, the residual liquid on the traction rope 51 can be scraped off.

[0031] like Figures 6 to 7As shown, a positioning component 6 is provided inside the hollow shaft 43. The positioning component 6 includes a locking magnetic ring 61 fixedly connected to the inner wall of the hollow shaft 43. A pair of positioning magnetic plates 62 are fixedly connected to the outer end of the rotating shaft 42. The pair of positioning magnetic plates 62 are symmetrically distributed. The positioning magnetic plates 62 are attracted by the locking magnetic ring 61, which forces the cleaning plate 41 to stop. It is perpendicular to the liquid surface, allowing the liquid to pass through smoothly.

[0032] Specifically, the rotating shaft rotates on the inner wall of the hollow shaft 43. When the positioning magnetic plate 62 rotates to the vicinity of the locking magnetic ring 61, it is attracted by its attraction. In actual design, there is a gap between the positioning magnetic plate 62 and the locking magnetic ring 61, so that the frictional force of rotation is 0. At the same time, a sealing sleeve is provided between the inner wall of the hollow shaft 43 and the rotating shaft 42.

[0033] When the traction rope and traction wire 44 are pulled, the cleaning plate 41 will rotate significantly. When it rotates to between 160 and 175 degrees, it will stop under the magnetic force of the positioning magnetic plate 62 and the locking magnetic ring 61. This ensures that the cleaning plate 41 can stop at the locking magnetic ring 61 whether it rotates forward or backward. As a result, the cleaning plate 41 will always be perpendicular to the liquid surface without external pulling, minimizing the impact on the flow of liquid.

[0034] With the magnetic force of the positioning magnetic plate 62 and the locking magnetic ring 61, when the cleaning plate 41 is stationary, it is perpendicular to the liquid surface, and the liquid can pass normally from both sides of the cleaning plate 41, thereby effectively preventing the cleaning plate from shaking with the liquid flow, and thus effectively preventing the cleaning plate 41 from having a possible positional deviation.

[0035] like Figures 8 to 10 As shown, the interior of the three-way pipe 22 is provided with a disassembly and assembly component 7. The disassembly and assembly component 7 includes a limiting ring fixedly connected to the inner wall of the three-way pipe 22. The limiting ring has multiple limiting grooves 72. The outer ends of the ports of the irrigation pipe 24, the negative pressure pipe 23 and the liquid outlet pipe 21 are all provided with locking buckles 73. The locking buckles 73 are telescopic components. The telescopic components enter the limiting grooves 72 to complete the assembly.

[0036] The telescopic component consists of an arc-shaped block 731 and an elastic component 732 fixedly connected to the arc-shaped block 731. The outer end of the three-way pipe 22 is provided with multiple movable holes. The inner wall of the movable hole is slidably connected to a contact rod 74. The top of the contact rod 74 is fixedly connected to a pressure plate 71. A reset component is fixedly connected between the pressure plate 71 and the three-way pipe 22. The reset component can be a reset spring.

[0037] Specifically, the elastic element 732 includes a telescopic tube, the outer end of which is fitted with a compression spring, the top of which is fixedly connected to the arc-shaped block 731, and the compression spring is located between the telescopic tube and the arc-shaped block 731.

[0038] The inner wall of the three-way pipe 22 is fixedly connected with a first fixing ring 75. The outer ends of the irrigation pipe 24, the negative pressure pipe 23 and the outlet pipe 21 are all fixedly sleeved with a second fixing ring 76. A sealing gasket is provided on one side of the first fixing ring 75 and the second fixing ring 76.

[0039] During the assembly process, the outlet pipe 21 is pushed into the three-way pipe 22, and the arc-shaped block 731 begins to compress the spring, causing the arc-shaped block 731 to enter the contracted state until a pair of sealing gaskets come into contact with each other. Then, the outlet pipe 21 is rotated until the arc-shaped block 731 outside the outlet pipe 21 enters the limiting groove 72 and locks in place. At this point, the outlet pipe 21 and the three-way pipe 22 cannot be separated, whether it is inserted, removed, or rotated. Similarly, the irrigation pipe 24, the negative pressure pipe 23, and the three-way pipe 22 are assembled in sequence. During disassembly, hold the T-connector 22 near the port and press down the four pressure plates 71 simultaneously. The pressure plates 71 move inward and squeeze the arc-shaped block 731, causing the arc-shaped block 731 to separate from the limiting groove 72. Then, simply pull out the corresponding pipe (any one of the irrigation pipe 24, negative pressure pipe 23, and liquid outlet pipe 21), thus achieving the purpose of quick disassembly and assembly.

[0040] Specifically, the sealing gaskets on the corresponding sides of the first fixing ring 75 and the second fixing ring 76 are tightly attached. When assembling, the sealing gaskets need to be pressed hard to make the pair of sealing gaskets subject to greater compressive force to achieve the purpose of sealing. Then, the arc-shaped block 731 is rotated to enter the limiting groove 72. At this time, the pipeline assembly can be completed and the sealing purpose can be achieved.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A large-capacity whole lung lavage device, comprising an lavage bottle (1) filled with physiological saline, characterized in that, The bottom of the irrigation bottle (1) is provided with an irrigation component (2). The irrigation component (2) includes an outlet tube (21) connected to the irrigation bottle (1). The end of the outlet tube (21) is provided with a three-way tube (22). The other two ends of the three-way tube (22) are respectively connected to a negative pressure tube (23) and an irrigation tube (24). The irrigation tube (24) extends to one lung in the patient's body and is used to draw physiological saline into the lung and irrigate it. The lavage component (2) is provided with a breathing assist component (3) on its exterior. The breathing assist component (3) includes a breathing tube (31), one end of which extends to the other lung in the patient's body to assist breathing in the other lung when lavaging one lung. The flushing pipe (24) is provided with a dredging component (4), which includes a plurality of cleaning blades (41) that are equidistantly rotatably disposed on the inner wall of the flushing pipe (24). The cleaning plate (41) exists in two states. The first state is a stationary state. In the stationary state, the multiple cleaning plates (41) are perpendicular to the cross-section of the irrigation pipe (24), reducing interference with the normal flow of liquid. The second state is a moving state. In the moving state, the multiple cleaning plates (41) rotate synchronously to break up and disperse the returned residual liquid.

2. The large-capacity whole lung lavage device according to claim 1, characterized in that, The unblocking component (4) also includes a rotating shaft (42) fixedly connected to the inner wall of the cleaning plate (41), and a hollow shaft (43) is rotatably connected to the end of the rotating shaft (42), and the hollow shaft (43) is fixedly connected to the inner wall of the irrigation pipe (24).

3. The large-capacity whole lung lavage device according to claim 2, characterized in that, Two traction wires (44) are fixedly connected to the multiple cleaning plates (41). The traction wires (44) are close to the outer edge of the cleaning plates (41), and pulling the traction wires (44) drives the multiple cleaning plates (41) to rotate synchronously.

4. The large-capacity whole lung lavage device according to claim 3, characterized in that, The outer end of the uppermost cleaning plate (41) is provided with a driving component (5), the driving component (5) includes a pair of pull ropes (51) fixedly connected to the uppermost cleaning plate (41), and the end of the pull ropes (51) is fixedly connected with a pull ring (53).

5. The large-capacity whole lung lavage device according to claim 4, characterized in that, The outer end of the irrigation tube (24) extends into a sealing tube (52), and a sealing hole is provided on the sealing tube (52). One end of the pulling rope (51) extends to the outside of the sealing hole, and there is a sealing ring between the sealing hole and the pulling rope (51).

6. The large-capacity whole lung lavage device according to claim 5, characterized in that, The hollow shaft (43) is provided with a positioning component (6). The positioning component (6) includes a locking magnetic ring (61) fixedly connected to the inner wall of the hollow shaft (43). A pair of positioning magnetic plates (62) are fixedly connected to the outer end of the rotating shaft (42). The pair of positioning magnetic plates (62) are symmetrically distributed. The positioning magnetic plates (62) are attracted by the locking magnetic ring (61), which forces the cleaning plate (41) to stop. It is perpendicular to the liquid surface, allowing the liquid to pass through smoothly.

7. The large-capacity whole lung lavage device according to claim 6, characterized in that, The interior of the three-way pipe (22) is provided with a disassembly and assembly component (7), which includes multiple limiting grooves (72). The outer ends of the ports of the irrigation pipe (24), the negative pressure pipe (23) and the liquid outlet pipe (21) are all provided with locking buckles (73), which are telescopic components.

8. The large-capacity whole lung lavage device according to claim 7, characterized in that, The telescopic component is an arc-shaped block (731) and an elastic component (732) fixedly connected to the arc-shaped block (731). The outer end of the three-way pipe (22) is provided with multiple movable holes. The inner wall of the movable hole is slidably connected with a contact rod (74). A reset component is also provided between the contact rod (74) and the three-way pipe (22).

9. The large-capacity whole lung lavage device according to claim 8, characterized in that, The inner wall of the three-way pipe (22) is fixedly connected with a first fixing ring (75), and the outer ends of the irrigation pipe (24), negative pressure pipe (23) and liquid outlet pipe (21) are all fixedly sleeved with a second fixing ring (76). A sealing gasket is provided on one side of the first fixing ring (75) and the second fixing ring (76).

10. The large-capacity whole lung lavage device according to claim 2, characterized in that, The cleaning plate (41) is circular, and multiple evenly distributed liquid channels (45) are provided on its outer side.

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