A multifunctional pleural and peritoneal effusion drainage device and system for treating lung injury

Abstract

This invention relates to the field of medical device technology, specifically to a multifunctional pleural and peritoneal effusion drainage device and system for treating lung injuries. The device includes a drainage tube, to which several negative pressure tubes are connected. One end of each negative pressure tube, away from the drainage tube, is connected to a negative pressure machine for generating negative pressure suction. Several flushing tubes for delivering flushing fluid are connected to the drainage tube. A peristaltic mechanism for externally pushing the drainage tube is also provided on the outer wall of the drainage tube. The peristaltic mechanism includes a fixed groove and a pushing wheel. The drainage tube is located within the fixed groove, and the pushing wheel abuts against the drainage tube. An opening and closing mechanism is provided on the side of the fixed groove near the drainage tube. This mechanism is used to connect the flushing tubes to the drainage tubes based on the pressure of the pushing wheel. This invention reduces the risk of drainage tube blockage and maintains stable suction pressure to ensure continuous drainage of pleural effusion from the patient's chest cavity.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a multifunctional pleural and peritoneal effusion drainage device and system for treating lung injury. Background Technology

[0002] Lung injury can be caused by factors such as trauma, infection, and inflammation. Trauma, infection (e.g., pneumonia, empyema), inflammation (e.g., ARDS), or hypoproteinemia increase capillary permeability. The inflammatory response following the injury leads to increased pleural / peritoneal effusion, resulting in pleural or ascites effusion. This effusion occupies pleural space, restricts alveolar expansion, and causes atelectasis and ventilation / perfusion mismatch, increasing the risk of respiratory failure.

[0003] In existing technologies, drainage therapy can alleviate pressure on lung tissue, improve respiratory function, and reduce the risk of lung infection by reducing the environment for bacterial growth provided by the effusion. During drainage, the main reasons for inaccurate control of suction pressure or flow rate are inaccurate negative pressure parameter settings. Secondly, the nature of the effusion affects the suction process; for example, infectious effusions contain a large number of white blood cells, bacteria, and inflammatory factors, easily forming purulent, viscous fluid that is prone to blockage, resulting in high flow resistance during suction and requiring high negative pressure and prolonged suction, making pressure control difficult. Furthermore, fibrin deposition forms cavitation septa, creating multiple cavities between adjacent effusions. This obstructs drainage from specific cavities while other cavities drain normally, affecting pressure system fluctuations and increasing the difficulty of negative pressure suction control.

[0004] Therefore, the present invention provides a pleural and peritoneal effusion drainage device and system that facilitates maintaining stable suction pressure, thereby reducing the risk of drainage tube blockage and ensuring continuous drainage of effusion in the patient's pleural cavity. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a multifunctional pleural and peritoneal effusion drainage device and system for treating lung injury, which reduces the risk of drainage tube blockage and maintains stable suction pressure to ensure continuous drainage of effusion from the patient's pleural cavity.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A multifunctional pleural and peritoneal effusion drainage device for treating lung injury, comprising a drainage tube, a plurality of negative pressure tubes connected to the drainage tube, a negative pressure machine for generating negative pressure suction connected to the end of the negative pressure tube away from the drainage tube, a plurality of flushing tubes for conveying flushing fluid connected to the drainage tube, and a peristaltic mechanism for externally pushing the drainage tube on the outer wall of the drainage tube, the peristaltic mechanism comprising a fixed groove and a pushing wheel, the drainage tube being located in the fixed groove, and the pushing wheel abutting against the drainage tube;

[0007] The fixed tank is equipped with an opening and closing mechanism on the side near the drainage pipe. The opening and closing mechanism is used to connect the flushing pipe to the drainage pipe based on the pressing of the push wheel.

[0008] Furthermore, the peristaltic mechanism includes several first turntables and second turntables. Both the first turntables and second turntables are coaxially connected to a driving component. Both the outer walls of the first turntables and second turntables are fixedly connected to a support rod. The push wheel rotates with the support rod and is located between the fixed groove and the support rod.

[0009] The second turntable is located between the adjacent first turntables, and the rotation direction of the second turntable is opposite to that of the first turntable.

[0010] Furthermore, the drainage tube is S-shaped, and a grooved wheel is coaxially fixedly connected to the top of the first turntable. Adjacent grooved wheels are rotatably connected by a chain, and the corresponding drive component of the second turntable is used to change the rotation direction of the second turntable.

[0011] Furthermore, the opening and closing mechanism includes a conversion chamber fixedly connected to the fixed tank, and the conversion chamber is connected to the drainage pipe, the flushing pipe and the negative pressure pipe respectively;

[0012] A central shaft is rotatably fitted at the center of the conversion chamber. A torsion spring is fitted on the central shaft. A blocking block is fixedly connected to one side of the outer wall of the central shaft, and an extension block is fixedly connected to the other side of the outer wall of the central shaft. The extension block is located inside the drainage tube.

[0013] The shielding block has a sliding groove, and a sealing plate is slidably fitted inside the sliding groove. The end of the sliding groove away from the sealing plate is connected to the outside atmosphere. The sealing plate is connected to the side of the conversion chamber near the flushing pipe by a branch pipe. The end of the branch pipe away from the conversion chamber is connected to the negative pressure pipe. A one-way valve is connected inside the branch pipe.

[0014] When the extension block is inside the drainage tube, the torsion spring is in a naturally extended state, the shielding block closes the flushing tube, and the sealing plate is located between the shielding block and the branch pipe; when the extension block is pushed by the push wheel into the conversion chamber, the torsion spring is in a compressed state, and the shielding block and the sealing plate separate from the conversion chamber.

[0015] Furthermore, the end of the extension block away from the central axis has a mating hole, and the conversion chamber is provided with a fixing pin for fixing the extension block. The end of the fixing pin away from the conversion chamber is fixedly connected to an electric push rod, and the electric push rod is electrically connected to a control panel.

[0016] When the extension block and the push wheel continue to abut against each other and move to the farthest point, the fixing pin and the mating hole coincide.

[0017] Furthermore, a multifunctional pleural and peritoneal effusion drainage system for treating lung injury, according to the above-mentioned multifunctional pleural and peritoneal effusion drainage device for treating lung injury, includes a flow rate sensor located inside the flushing tube, a turbidity sensor located inside the negative pressure tube, and the flow rate sensor and the turbidity sensor are electrically connected to the control panel.

[0018] The flow rate sensor is used to detect the real-time flow rate inside the flushing pipe, and the turbidity sensor is used to detect the turbidity of the liquid inside the negative pressure pipe in real time.

[0019] The control panel is used to input and store the current suction flow rate inside the drainage tube, the corresponding blockage value, the standard flow rate corresponding to different blockage values, and the standard rotation speed corresponding to the first and second turntables. It then compares the current turbidity with the corresponding blockage value. If the turbidity is greater than or equal to the blockage value, it obtains the corresponding standard flow rate and standard rotation speed based on the blockage value, sends a start command to the corresponding drive unit of the first and second turntables based on the standard rotation speed, and compares the real-time flow rate with the standard flow rate. If the real-time flow rate matches the standard flow rate, it records a normal adjustment command; if the real-time flow rate does not match the standard flow rate, it records an abnormal adjustment command; if the turbidity is less than the blockage value, it sends a standby command to the corresponding drive unit of the first and second turntables.

[0020] Furthermore, the control panel is also used to adjust the position mark of the turbidity sensor based on the distribution position corresponding to the first turntable or the second turntable. With the second turntable as the center, according to the flow direction of the liquid in the drainage tube, the turbidity detected by the turbidity sensor upstream of the second turntable is the first comparison value, and the turbidity detected by the turbidity sensor downstream of the second turntable is the second comparison value.

[0021] When the turbidity detected by the turbidity sensor upstream of the second turntable is greater than or equal to the blockage value, the difference between the first comparison value and the second comparison value is calculated. The difference value is compared with the set start value. If the difference value is greater than the start value, a standby command is sent to the drive unit corresponding to the second turntable; if the difference value is less than the start value, a reverse rotation command is sent to the drive unit corresponding to the second turntable.

[0022] Furthermore, the control panel is also used to send a normal operation command to the negative pressure machine and the corresponding drive unit of the first turntable when the turbidity detected by the turbidity sensor upstream of the second turntable is greater than or equal to the blockage value. If the control panel records a normal adjustment command, it sends a power adjustment command to the negative pressure machine corresponding to the first turntable based on the change value between the real-time flow and the standard flow.

[0023] When the turbidity detected by the turbidity sensor downstream of the second turntable is greater than or equal to the blockage value, and the real-time flow rate is inconsistent with the standard flow rate, the real-time flow rate is compared with the standard flow rate. If the real-time flow rate is greater than the standard flow rate, a reverse rotation command is sent to the drive unit corresponding to the second turntable, and the rotation speed of the drive unit corresponding to the second turntable is adjusted based on the change between the real-time flow rate and the standard flow rate. If the real-time flow rate is less than the standard flow rate, a forward rotation command is sent to the drive unit corresponding to the second turntable.

[0024] Furthermore, a pressure sensor is fixedly connected to the side of the extension block away from the central axis to measure real-time pressure data when the rotating wheel contacts the extension block. The pressure sensor is electrically connected to the control panel.

[0025] The control panel is used to compare real-time pressure data with the set rated value. If the real-time pressure data is greater than the rated value, the turbidity of the turbidity sensor corresponding to the current location marker is obtained, and the turbidity at the current time is compared with the corresponding blockage value. If the turbidity is greater than or equal to the blockage value, a delayed start command is sent to the electric actuator. If the turbidity is less than the blockage value, a standby command is sent to the electric actuator. If the real-time pressure data is less than the rated value, a standby command is sent to the electric actuator.

[0026] Furthermore, the control panel is also used to send stop commands to the corresponding drive components and negative pressure units of each first turntable and to the corresponding drive components of the second turntable when the turbidity detected by the corresponding turbidity sensor upstream of the second turntable is greater than or equal to the blockage value, the difference value is less than the start value, and the real-time pressure data is greater than the rated value.

[0027] The above approach has the following beneficial effects:

[0028] 1. This solution uses both negative pressure suction and peristaltic mechanism to compensate for the reduced flow rate or blockage caused by the adhesion and viscous fluid in the drainage tube when using negative pressure suction alone, thus ensuring the stability of the flow rate control in the drainage tube.

[0029] 2. This solution utilizes an opening and closing mechanism to control the opening and closing of the flushing tube. During the peristaltic pushing process of the drainage tube by the peristaltic mechanism, the flushing fluid inside the flushing tube is used to clean and reduce the concentration, thereby ensuring the unobstructed flow inside the drainage tube during the drainage process. This facilitates the continuity and controllability of the subsequent negative pressure drainage process and provides a guarantee for subsequent stable flow rate control.

[0030] 3. This solution adjusts the flushing volume in the flushing tube to ensure unobstructed drainage during subsequent drainage, facilitating continuous drainage.

[0031] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] Figure 1 This is an isometric view of an embodiment of the multifunctional pleural and peritoneal effusion drainage device for treating lung injury according to the present invention;

[0033] Figure 2This is a front view of an embodiment of the multifunctional pleural and peritoneal effusion drainage device for treating lung injury according to the present invention;

[0034] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction;

[0035] Figure 4 for Figure 3 A magnified schematic diagram of part B in the middle.

[0036] The reference numerals in the accompanying drawings of the instruction manual include: 1. Drainage tube; 2. Flushing tube; 21. Baffle block; 22. Central shaft; 23. Extension block; 24. Sealing plate; 3. Negative pressure tube; 31. Branch pipe; 4. Fixed tank; 41. Conversion chamber; 42. Fixing pin; 43. Mating hole; 5. First turntable; 51. Second turntable; 52. Support rod; 53. Push wheel. Detailed Implementation

[0037] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] The following detailed description illustrates the specific implementation method:

[0041] As attached Figures 1 to 4As shown: A multifunctional pleural and peritoneal effusion drainage device for treating lung injury includes a drainage tube 1, a plurality of negative pressure tubes 3 connected to the drainage tube 1, a negative pressure machine (not shown in the figure) for generating negative pressure suction connected to the end of the negative pressure tube 3 away from the drainage tube 1, a plurality of flushing tubes 2 for conveying flushing fluid connected to the drainage tube 1, and a peristaltic mechanism for externally pushing the drainage tube 1 is also provided on the outer wall of the drainage tube 1. The peristaltic mechanism includes a fixed groove 4 and a pushing wheel 53. The drainage tube 1 is located in the fixed groove 4, and the pushing wheel 53 abuts against the drainage tube 1.

[0042] The peristaltic mechanism also includes several first turntables 5 and second turntables 51. Both the first turntables 5 and the second turntables 51 are coaxially connected to a driving component. In this embodiment, the driving component is a motor. The outer walls of both the first turntables 5 and the second turntables 51 are fixedly connected to support rods 52. The push wheel 53 rotates with the support rod 52 and is located between the fixed groove 4 and the support rod 52. The second turntable 51 is located between adjacent first turntables 5, and the rotation direction of the second turntable 51 is opposite to the rotation direction of the first turntable 5.

[0043] The drainage tube 1 is S-shaped. The top of the first turntable 5 is coaxially fixed with a grooved wheel (not shown in the figure). Adjacent grooved wheels are rotatably connected by a chain. The driving component corresponding to the second turntable 51 is used to change the rotation direction of the second turntable 51.

[0044] A closing mechanism is provided on the side of the fixed tank 4 near the drainage pipe 1. The closing mechanism is used to connect the flushing pipe 2 to the drainage pipe 1 by pressing the push wheel 53. The closing mechanism includes a conversion chamber 41 fixedly connected to the fixed tank 4. The conversion chamber 41 is connected to the drainage pipe 1, the flushing pipe 2, and the negative pressure pipe 3. A central shaft 22 is rotatably fitted at the center of the conversion chamber 41. A torsion spring is fitted on the central shaft 22. One end of the torsion spring is fixedly connected to the conversion chamber 41. The other end of the torsion spring is fixedly connected to the central shaft 22. A blocking block 21 is fixedly connected to one side of the outer wall of the central shaft 22. An extension block 23 is fixedly connected to the other side of the outer wall of the central shaft 22. The extension block 23 is located inside the drainage pipe 1. A sliding groove is opened in the blocking block 21. A sealing plate 24 is slidably fitted in the sliding groove. The end of the sliding groove away from the sealing plate 24 is connected to the outside atmosphere. A branch pipe 31 is connected to the side of the sealing plate 24 and the side of the conversion chamber 41 near the flushing pipe 2. The end of the branch pipe 31 away from the conversion chamber 41 is connected to the negative pressure pipe 3. The pressure pipe 3 is connected, and the branch pipe 31 is connected to a one-way valve. The one-way valve can only allow the air in the branch pipe 31 to flow from the conversion chamber 41 to the inside of the negative pressure pipe 3. When the extension block 23 is located in the drainage pipe 1, the torsion spring is in a naturally extended state, the shielding block 21 closes the flushing pipe 2, and the sealing plate 24 is located between the shielding block 21 and the branch pipe 31. When the extension block 23 is pushed by the push wheel 53 and is located in the conversion chamber 41, the torsion spring is in a compressed state, and the shielding block 21 and the sealing plate 24 are separated from the conversion chamber 41.

[0045] The specific implementation process is as follows:

[0046] First, this solution uses both negative pressure suction and peristaltic mechanism to compensate for the reduced flow rate or blockage caused by the viscous deposits and accumulated fluid in the drainage tube 1 when using only negative pressure suction, thus ensuring the stability of the flow rate control in the drainage tube 1.

[0047] During the movement of the first turntable 5 and the second turntable 51, the driving component drives the first turntable 5 and the second turntable 51 to rotate respectively. The first turntable 5 and the second turntable 51 drive the push wheel 53 through the support rod 52 to squeeze the drainage tube 1 in the fixed tank 4. The push wheel 53 pushes and squeezes the deformable drainage tube 1, causing impurities or sediments that may be attached to the inner wall of the drainage tube 1 to move, thereby reducing the possibility of blockage in the drainage tube 1, so as to facilitate the stable control of the flow rate of the accumulated liquid inside the drainage tube 1. The second turntable 51 generates a pushing force in the opposite direction inside the drainage tube 1, so that the squeezing inside the drainage tube 1 between the first turntable 5 and the second turntable 51 is counteracted, thereby reducing the possible adhesion of deposits inside the drainage tube 1 and ensuring the unobstructed flow of the drainage tube 1.

[0048] Meanwhile, as the adjacent first turntables 5 rotate simultaneously via chains, the push wheel 53 squeezes and seals the drainage pipe 1, forming a relatively closed conveying section between the adjacent first turntables 5, and the rotation direction of the second turntable 51 is subsequently controlled.

[0049] By using the driving component corresponding to the second turntable 51 to adjust the rotation direction of the second turntable 51, it can either create a liquid push in the opposite direction to the first turntable 5, thereby creating a reverse flushing effect on the inside of the drainage pipe 1 and strengthening the cleaning of residues on the inner wall of the drainage pipe 1; or it can create a direction in the same direction as the first turntable 5, thereby strengthening the conveying power inside the conveying section to push the accumulated liquid to move quickly, thus reducing the occurrence of possible blockages in the conveying section.

[0050] During the normal transport of accumulated liquid in the delivery pipe, the spring force of the torsion spring pushes the shielding block 21 against the side of the conversion chamber 41 near the flushing pipe 2. At this time, the negative pressure suction continuously generated in the negative pressure pipe 3 draws out the gap between the shielding block 21 and the conversion chamber 41 through the branch pipe 31, so that the air between the sealing plate 24 inside the shielding block 21 and the conversion chamber 41 is continuously reduced, so that a negative pressure environment is formed between the sealing plate 24 and the conversion chamber 41. The side of the chute away from the sealing plate 24 is connected to the atmosphere, and the atmospheric pressure is used to press the sealing plate 24 onto the conversion chamber 41, thereby achieving the sealing effect of the sealing plate 24 on the flushing pipe 2.

[0051] When the peristaltic mechanism is activated, the first turntable 5 or the second turntable 51 drives the push wheel 53 to rotate via the support rod 52, causing the push wheel 53 to press the drainage tube 1 against the inside of the fixed tank 4. Since the extension block 23 is located inside the drainage tube 1, when the push wheel 53 abuts against the extension block 23, the extension block 23 rotates around the central axis 22, causing the shielding block 21 to move away from the conversion chamber 41 and approach the surface of the flushing tube 2, so that the sealing plate 24 no longer seals the flushing tube 2, allowing the flushing fluid inside the flushing tube 2 to automatically drain into the drainage tube 1, thereby reducing the concentration of accumulated fluid in the drainage tube 1, facilitating subsequent drainage and ensuring the smooth flow of the pipeline.

[0052] In another embodiment, the extension block 23 has a mating hole 43 at one end away from the central shaft 22, and a fixing pin 42 for fixing the extension block 23 is provided in the conversion chamber 41. The fixing pin 42 is fixedly connected to an electric push rod at one end away from the conversion chamber 41, and the electric push rod is electrically connected to a control panel (not shown in the figure). When the extension block 23 moves to the farthest end by continuously abutting against the push wheel 53, the fixing pin 42 coincides with the mating hole 43.

[0053] The specific implementation process is as follows: The start-up status of the electric actuator is controlled by the control panel. The electric actuator drives the fixing pin 42 to extend and retract, so that the fixing pin 42 is inserted into the mating hole 43 to fix the extension block 23, thereby continuously controlling the connection between the flushing tube 2 and the drainage tube 1, and continuously adjusting the viscosity of the accumulated liquid inside the drainage tube 1 to ensure the unobstructed flow inside the drainage tube 1, thus facilitating the normal drainage process.

[0054] A multifunctional pleural and peritoneal effusion drainage system for treating lung injury, comprising a flow rate sensor located inside an irrigation tube 2 and a turbidity sensor located inside a negative pressure tube 3, wherein the flow rate sensor and the turbidity sensor are electrically connected to a control panel; the flow rate sensor is used to detect the real-time flow rate inside the irrigation tube 2, and the turbidity sensor is used to detect the turbidity of the fluid inside the negative pressure tube 3 in real time.

[0055] The control panel is used to input and store the current suction flow rate inside the drainage tube 1, the corresponding blockage value, the standard flow rate corresponding to different blockage values, and the standard rotation speed corresponding to the first turntable 5 and the second turntable 51. It then compares the current turbidity with the corresponding blockage value. If the turbidity is greater than or equal to the blockage value, it obtains the corresponding standard flow rate and standard rotation speed based on the blockage value. Based on the standard rotation speed, it sends a start command to the corresponding drive unit of the first turntable 5 and the second turntable 51. It also compares the real-time flow rate with the standard flow rate. If the real-time flow rate matches the standard flow rate, it records a normal adjustment command; if the real-time flow rate does not match the standard flow rate, it records an abnormal adjustment command; if the turbidity is less than the blockage value, it sends a standby command to the corresponding drive unit of the first turntable 5 and the second turntable 51.

[0056] For example, firstly, the suction flow rate under different flow conditions is recorded, and the blockage value, standard flow rate, and standard rotation speed corresponding to different suction flow rates are established to provide a reference standard for subsequent blockage judgment; then, the turbidity of the accumulated liquid at the current time is detected by the turbidity sensor to control the start of the driving components corresponding to the first turntable 5 and the second turntable 51, and the rotating wheel is used to squeeze and push the drainage tube 1 to reduce the possibility of blockage in the drainage tube 1; then, the rotating wheel pushes the extension block 23 to open the flushing tube 2, so that the flushing fluid in the flushing tube 2 disperses the accumulated liquid inside the drainage tube 1, reduces the viscosity of the accumulated liquid, and facilitates the subsequent continuous drainage.

[0057] Simultaneously, by comparing the real-time flow with the standard flow rate and recording the adjustment of normal and abnormal commands, a reference basis is provided for the subsequent adjustment of the negative pressure machine's power and the negative pressure drainage, so as to ensure the stability of the control of the liquid flow rate during the drainage process.

[0058] In another embodiment, the control panel is also used to adjust the position marking of the turbidity sensor based on the distribution position corresponding to the first turntable 5 or the second turntable 51, with the second turntable 51 as the center and according to the flow direction of the liquid in the drainage tube 1, wherein the turbidity detected by the turbidity sensor upstream of the second turntable 51 is the first comparison value, and the turbidity detected by the turbidity sensor downstream of the second turntable 51 is the second comparison value.

[0059] When the turbidity detected by the turbidity sensor upstream of the second turntable 51 is greater than or equal to the blockage value, the difference between the first comparison value and the second comparison value is calculated, and the difference value is compared with the set start value. If the difference value is greater than the start value, a standby command is sent to the drive unit corresponding to the second turntable 51; if the difference value is less than the start value, a reverse rotation command is sent to the drive unit corresponding to the second turntable 51.

[0060] For example, when the drainage tube 1 is blocked and the viscosity of the accumulated fluid in the drainage tube 1 is adjusted by connecting it through the flushing tube 2, the first comparison value and the second comparison value corresponding to the adjacent first turntable 5 are compared and processed. The difference value is compared with the start value to determine whether the flushing fluid discharged from the flushing tube 2 disperses the accumulated fluid. This controls the drive component corresponding to the second turntable 51 to form reverse flushing and enhance the dispersion of the accumulated fluid in the drainage tube 1, thereby ensuring the stability of the subsequent drainage flow rate control.

[0061] The control panel is also used to send a normal operation command to the negative pressure machine and the corresponding drive unit of the first turntable 5 when the turbidity detected by the turbidity sensor upstream of the second turntable 51 is greater than or equal to the blockage value. If the control panel records a normal adjustment command, it sends a power adjustment command to the negative pressure machine corresponding to the first turntable 5 based on the change value between the real-time flow and the standard flow.

[0062] When the turbidity detected by the turbidity sensor downstream of the second turntable 51 is greater than or equal to the blockage value, and the real-time flow rate is inconsistent with the standard flow rate, the real-time flow rate is compared with the standard flow rate. If the real-time flow rate is greater than the standard flow rate, a reverse rotation command is sent to the drive unit corresponding to the second turntable 51, and the rotation speed of the drive unit corresponding to the second turntable 51 is adjusted based on the change between the real-time flow rate and the standard flow rate. If the real-time flow rate is less than the standard flow rate, a forward rotation command is sent to the drive unit corresponding to the second turntable 51.

[0063] For example, during the flushing process inside the flushing tube 2, the negative pressure suction in the negative pressure tube 3 or the push wheel 53 affects the flow rate inside the drainage tube 1. For the turbidity sensor upstream of the second turntable 51, the power of the negative pressure suction corresponding to the first turntable 5 is adjusted to maintain the flow rate stability inside the drainage tube 1, thereby ensuring the flow rate stability of the accumulated liquid discharged from the negative pressure tube 3, and the influence of the flow rate of the accumulated liquid inside the drainage tube 1 on the flow rate inside the subsequent drainage tube 1.

[0064] For the turbidity sensor downstream of the second turntable 51, the real-time flow rate is compared with the standard flow rate. The rotation direction of the second turntable 51 is controlled. When the second turntable 51 rotates in the reverse direction, the flow rate of the liquid inside the drainage tube 1 is slowed down to ensure the stability of the flow rate of the liquid inside the subsequent negative pressure tube 3. When the second turntable 51 rotates in the forward direction, the flow rate of the liquid inside the drainage tube 1 is accelerated to ensure that the flow rate of the liquid in the subsequent drainage tube 1 and negative pressure tube 3 is in a normal state during the suction process, thereby facilitating the maintenance of unobstructed flow in the drainage tube 1.

[0065] In some other embodiments, a pressure sensor is fixedly connected to the side of the extension block 23 away from the central axis 22 for measuring real-time pressure data when the rotating wheel contacts the extension block 23. The pressure sensor is electrically connected to the control panel.

[0066] The control panel is used to compare real-time pressure data with the set rated value. If the real-time pressure data is greater than the rated value, the turbidity of the turbidity sensor corresponding to the current location marker is obtained, and the turbidity at the current time is compared with the corresponding blockage value. If the turbidity is greater than or equal to the blockage value, a delayed start command is sent to the electric actuator. If the turbidity is less than the blockage value, a standby command is sent to the electric actuator. If the real-time pressure data is less than the rated value, a standby command is sent to the electric actuator.

[0067] For example, the contact between the rotating wheel and the extension block 23 is detected by a pressure sensor, and the start-up status of the electric actuator is controlled based on the current turbidity and blockage value. This continuously controls the opening of the flushing pipe 2, and the flushing volume continuously discharged from the flushing pipe 2 disperses the accumulated liquid inside the drainage pipe 1, thereby ensuring the unobstructed flow inside the drainage pipe 1 and the negative pressure pipe 3, and reducing the impact of the highly viscous accumulated liquid in the drainage pipe 1 on the drainage process.

[0068] The control panel is also used to send stop commands to the drive components and negative pressure units corresponding to each first turntable 5 and to the drive components corresponding to the second turntable 51 when the turbidity detected by the turbidity sensor upstream of the second turntable 51 is greater than or equal to the blockage value, the difference value is less than the start value, and the real-time pressure data is greater than the rated value.

[0069] For example, by sending a stop command to the drive component corresponding to the first turntable 5, the drainage tube 1 is squeezed and sealed by the drive component. Then, by sending a back-and-forth rotation command to the drive component corresponding to the second turntable 51, the inside of the drainage tube 1 is flushed back and forth to reduce the generation of deposits or sediments on the inner wall of the drainage tube 1, thereby facilitating the unobstructed flow of the drainage tube 1.

[0070] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A multifunctional pleural and peritoneal effusion drainage device for treating lung injury, comprising a drainage tube (1), wherein a plurality of negative pressure tubes (3) are connected to the drainage tube (1), and one end of the negative pressure tube (3) away from the drainage tube (1) is connected to a negative pressure machine for generating negative pressure suction, characterized in that, The drainage tube (1) is connected to several flushing tubes (2) for conveying flushing fluid. The outer wall of the drainage tube (1) is also provided with a peristaltic mechanism for externally pushing the drainage tube (1). The peristaltic mechanism includes a fixed tank (4) and a push wheel (53). The drainage tube (1) is located in the fixed tank (4), and the push wheel (53) abuts against the drainage tube (1). The peristaltic mechanism also includes several first turntables (5) and second turntables (51). The first turntables (5) and second turntables (51) are coaxially connected with driving components. The outer walls of the first turntables (5) and second turntables (51) are fixedly connected with support rods (52). The push wheel (53) rotates with the support rods (52). The push wheel (53) is located between the fixed groove (4) and the support rods (52). The second turntable (51) is located between the adjacent first turntable (5), and the rotation direction of the second turntable (51) is opposite to that of the first turntable (5). The drainage tube (1) is S-shaped. The top of the first turntable (5) is coaxially fixed with a grooved wheel. Adjacent grooved wheels are connected by a chain for rotation. The driving component corresponding to the second turntable (51) is used to change the rotation direction of the second turntable (51). The fixed tank (4) is provided with an opening and closing mechanism on the side near the drainage pipe (1). The opening and closing mechanism is used to connect the flushing pipe (2) to the drainage pipe (1) based on the pressing of the push wheel (53). The opening and closing mechanism includes a conversion chamber (41) fixedly connected to the fixed tank (4), and the conversion chamber (41) is connected to the drainage pipe (1), the flushing pipe (2) and the negative pressure pipe (3) respectively; A central shaft (22) is rotatably fitted at the center of the conversion chamber (41). A torsion spring is fitted on the central shaft (22). A blocking block (21) is fixedly connected to one side of the outer wall of the central shaft (22), and an extension block (23) is fixedly connected to the other side of the outer wall of the central shaft (22). The extension block (23) is located inside the drainage tube (1). The shielding block (21) has a sliding groove, and a sealing plate (24) is slidably fitted inside the sliding groove. The end of the sliding groove away from the sealing plate (24) is connected to the outside atmosphere. The sealing plate (24) is connected to the side of the conversion chamber (41) near the flushing pipe (2) by a branch pipe (31). The end of the branch pipe (31) away from the conversion chamber (41) is connected to the negative pressure pipe (3). A one-way valve is connected inside the branch pipe (31). When the extension block (23) is located inside the drainage pipe (1), the torsion spring is in a naturally extended state, the shielding block (21) closes the flushing pipe (2), and the sealing plate (24) is located between the shielding block (21) and the branch pipe (31); when the extension block (23) is pushed by the push wheel (53) and located inside the conversion chamber (41), the torsion spring is in a compressed state, and the shielding block (21) and the sealing plate (24) are separated from the conversion chamber (41).

2. The multifunctional pleural and peritoneal effusion drainage device for treating lung injury according to claim 1, characterized in that, The extension block (23) has a mating hole (43) at one end away from the central axis (22). The conversion chamber (41) is provided with a fixing pin (42) for fixing the extension block (23). The end of the fixing pin (42) away from the conversion chamber (41) is fixedly connected to an electric push rod, which is electrically connected to a control panel. When the extension block (23) and the push wheel (53) continue to abut against each other and move to the farthest end, the fixing pin (42) coincides with the mating hole (43).

3. A multifunctional pleural and peritoneal effusion drainage system for treating lung injury, characterized in that, The system of the multifunctional pleural and peritoneal effusion drainage device for treating lung injury according to any one of claims 1-2 includes a flow rate sensor located inside the flushing tube (2), a turbidity sensor located inside the negative pressure tube (3), and the flow rate sensor and the turbidity sensor being electrically connected to the control panel. The flow rate sensor is used to detect the real-time flow rate inside the flushing pipe (2), and the turbidity sensor is used to detect the turbidity of the liquid inside the negative pressure pipe (3) in real time. The control panel is used to input and store the suction flow rate inside the drainage tube (1) at the current time, as well as the blockage value corresponding to the suction flow rate, the standard flow rate corresponding to different blockage values, and the standard rotation speed corresponding to the first turntable (5) and the second turntable (51). Then, the turbidity at the current time is compared with the corresponding blockage value. If the turbidity is greater than or equal to the blockage value, the corresponding standard flow rate and standard rotation speed are obtained based on the blockage value. Based on the standard rotation speed, a start command is sent to the drive unit corresponding to the first turntable (5) and the second turntable (51). The real-time flow rate is compared with the standard flow rate. If the real-time flow rate is consistent with the standard flow rate, the normal adjustment command is recorded. If the real-time flow rate is inconsistent with the standard flow rate, an adjustment error command is recorded; if the turbidity is less than the blockage value, a standby command is sent to the corresponding drive unit of the first turntable (5) and the second turntable (51).

4. The multifunctional pleural and peritoneal effusion drainage system for treating lung injury according to claim 3, characterized in that, The control panel is also used to adjust the position mark of the turbidity sensor based on the distribution position corresponding to the first turntable (5) or the second turntable (51). With the second turntable (51) as the center, according to the flow direction of the liquid in the drainage tube (1), the turbidity detected by the turbidity sensor upstream of the second turntable (51) is the first comparison value, and the turbidity detected by the turbidity sensor downstream of the second turntable (51) is the second comparison value. When the turbidity detected by the turbidity sensor upstream of the second turntable (51) is greater than or equal to the blockage value, the difference between the first comparison value and the second comparison value is calculated, and the difference value is compared with the set start value. If the difference value is greater than the start value, a standby command is sent to the drive unit corresponding to the second turntable (51); if the difference value is less than the start value, a reverse rotation command is sent to the drive unit corresponding to the second turntable (51).

5. The multifunctional pleural and peritoneal effusion drainage system for treating lung injury according to claim 4, characterized in that, The control panel is also used to send a normal operation command to the negative pressure machine and the drive unit corresponding to the first turntable (5) when the turbidity detected by the turbidity sensor upstream of the second turntable (51) is greater than or equal to the blockage value. If the control panel records a normal adjustment command, it sends a power adjustment command to the negative pressure machine corresponding to the first turntable (5) based on the change value between the real-time flow rate and the standard flow rate. When the turbidity detected by the turbidity sensor downstream of the second turntable (51) is greater than or equal to the blockage value, and the real-time flow rate is inconsistent with the standard flow rate, the real-time flow rate is compared with the standard flow rate. If the real-time flow rate is greater than the standard flow rate, a reverse rotation command is sent to the drive unit corresponding to the second turntable (51), and the rotation speed of the drive unit corresponding to the second turntable (51) is adjusted based on the change value between the real-time flow rate and the standard flow rate. If the real-time flow rate is less than the standard flow rate, a forward rotation command is sent to the drive unit corresponding to the second turntable (51).

6. The multifunctional pleural and peritoneal effusion drainage system for treating lung injury according to claim 5, characterized in that, A pressure sensor is also fixedly connected to the side of the extension block (23) away from the central axis (22) for measuring real-time pressure data when the rotating wheel contacts the extension block (23). The pressure sensor is electrically connected to the control panel. The control panel is used to compare real-time pressure data with the set rated value. If the real-time pressure data is greater than the rated value, the turbidity of the turbidity sensor corresponding to the current location marker is obtained, and the turbidity at the current time is compared with the corresponding blockage value. If the turbidity is greater than or equal to the blockage value, a delayed start command is sent to the electric actuator. If the turbidity is less than the blockage value, a standby command is sent to the electric actuator. If the real-time pressure data is less than the rated value, a standby command is sent to the electric actuator.

7. The multifunctional pleural and peritoneal effusion drainage system for treating lung injury according to claim 6, characterized in that, The control panel is also used to send a stop command to the drive unit and negative pressure machine corresponding to each first turntable (5) and a back-and-forth rotation command to the drive unit corresponding to the second turntable (51) when the turbidity detected by the turbidity sensor upstream of the second turntable (51) is greater than or equal to the blockage value, the difference value is less than the start value, and the real-time pressure data is greater than the rated value.

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