Novel bile drainage device

Abstract

The invention belongs to the technical field of medical instruments. In order to solve the problems that an existing anti-blocking bile drainage device cannot judge whether a pipeline is blocked or not in time, a drainage tube cannot be dredged in time, and use is very inconvenient, the novel bile drainage device comprises the drainage tube, a filter, a flushing fluid filling assembly, a reminding and driving combined assembly and a flushing fluid outlet assembly; the bile reacts with the purple litmus reagent in the reminding and driving combined assembly, and the color becomes red after the purple litmus reagent reacts with the bile, so that a medical worker is reminded of blockage of a drainage pipeline, impurities filtered at a filter can be cleaned in time, the reminding and driving combined assembly can also apply pressure to the flushing liquid filling assembly, and the flushing liquid filling assembly is prevented from being blocked. Therefore, the flushing fluid filling assembly is communicated with the drainage tube, the flushing fluid enters the drainage tube to perform back flushing on the filter, manual operation is not needed in the whole back flushing process, and the back flushing device is simple and convenient to use.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a novel bile drainage device. Background Technology

[0002] Currently, bile management in clinical practice mainly relies on traditional drainage tubes, such as T-tubes, for external drainage, which has several limitations: First, there is a lack of effective filtration mechanisms during the drainage process, and debris and flocculent matter in the bile can easily accumulate in the tube, leading to tube blockage. This requires frequent flushing or replacement, increasing patient suffering and the risk of infection. Second, external drainage can result in the loss of a large amount of bile. The bile salts, digestive enzymes, immunoglobulins, and other components contained in the bile cannot be reabsorbed, which may cause complications such as digestive dysfunction, malnutrition, and electrolyte imbalance in patients.

[0003] Patent CN219847569U discloses an anti-blockage bile drainage device, comprising: a drainage head, a Z-shaped tube, a buffer, an anti-blockage component, and a drainage component. The anti-blockage component includes a third connector, one end of which is movably sleeved with the inner cavity of one end of the buffer. A threaded cylinder is fixedly installed at the end of the third connector away from the buffer. A filter element is disposed inside the threaded cylinder, and a connector is disposed on the outer surface of the threaded cylinder. The connector is movably connected to the filter element, and one end of the connector is movably connected to the drainage component.

[0004] However, the above-mentioned technical solution, by setting up a threaded cylinder, first pauses the drainage when there is too much tissue debris filtered in the threaded cylinder, and then uses a spiral connector until the connector is detached from the outer surface of the threaded cylinder. Then the tissue debris blocking the threaded cylinder is cleared, and the connector is then installed on the outer surface of the threaded cylinder to continue the drainage. However, the above-mentioned technical solution does not have a structure to remind the drainage tube of blockage. That is, the device provided by the above-mentioned technical solution cannot clear the threaded cylinder in time, which is very inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to overcome the problem that existing anti-blockage bile drainage devices cannot promptly determine whether the pipeline is blocked, cannot clear the drainage tube in time, and are therefore very inconvenient to use.

[0006] To achieve the above objectives, the technical approach adopted by this invention is as follows: A novel bile drainage device is provided, comprising a drainage tube, a filter, a flushing fluid filling component, a reminder-driven assembly, and a flushing fluid outlet component. This invention utilizes the reaction between bile and purple litmus reagent in the reminder-driven assembly. The purple litmus reagent turns red after reacting with the bile, thus alerting medical personnel to any blockage in the drainage tube. This allows medical personnel to promptly clean the impurities filtered by the filter. Simultaneously, the reminder-driven assembly applies pressure to the flushing fluid filling component, connecting it to the drainage tube. The flushing fluid then enters the drainage tube, backwashing the filter. The entire backwashing process requires no manual operation, making it simple and convenient to use.

[0007] Based on the above technical concept, the technical solution adopted by this invention is as follows:

[0008] A novel bile drainage device includes a drainage tube and further includes:

[0009] The filter is connected to the drainage tube;

[0010] The flushing fluid filling assembly is located on the side of the filter furthest from the patient and is connected to the drainage tube;

[0011] The reminder drive assembly is connected at one end to the irrigation fluid filling assembly and at the other end to the drainage tube. The end of the reminder drive assembly connected to the drainage tube is located on the side of the filter closer to the patient. It is used to remind the patient that the drainage tube is blocked and to remind the irrigation fluid inlet of the irrigation fluid filling assembly is open.

[0012] The flushing fluid outlet assembly is connected to the drainage tube and is located below the reminder drive assembly.

[0013] In the above technical solution, preferably, the flushing fluid filling component includes:

[0014] Flushing fluid is introduced into the connector;

[0015] A sleeve is installed on the drainage tube and is connected to the flushing fluid filling connector.

[0016] To ensure that bile does not enter the flushing fluid outlet assembly during normal bile drainage, the flushing fluid filling connector further includes:

[0017] The L-shaped connecting pipe has one end connected to an external flushing fluid filling device, and the other end has an opening that fits into a sleeve.

[0018] The first pressure plate is connected to the L-shaped connecting pipe;

[0019] Multiple first piston rods are respectively disposed on the bottom surface of the first pressure plate.

[0020] To ensure that the flushing fluid inlet of the flushing fluid outlet assembly descends when the drainage tube becomes blocked, allowing flushing fluid to enter the drainage tube, a further limitation of the above technical solution is provided: the sleeve includes:

[0021] The sleeve body is connected to the drainage tube;

[0022] The second pressure plate is located at the end of the sleeve body;

[0023] Multiple pneumatic tubes are respectively installed on the bottom surface of the second pressure plate, and each pneumatic tube is sleeved with the corresponding first piston rod;

[0024] The pressure sensor is located inside the air pressure tube.

[0025] To further refine the above technical solution and promptly alert medical staff to drainage tube blockage, the alert drive assembly includes:

[0026] The control tube is connected at one end to the longitudinal tubing on the drainage tube and at the other end to the air pressure tube.

[0027] The reaction tube is connected to the control tube.

[0028] The movable plug is located inside the control tube.

[0029] To ensure proper bile drainage, the above technical solution is further specified, and the flushing fluid outlet assembly includes:

[0030] The sealing rod is sleeved with the longitudinal pipeline and has a through hole;

[0031] The second check valve is located inside the through hole;

[0032] The second reset elastic element is installed inside the longitudinal pipeline and is sleeved with the sealing rod.

[0033] To facilitate bile drainage, the above technical solution is further specified, with a bile storage device at the end of the drainage tube, and the bile storage device is equipped with a bile drainage assembly; the bile drainage assembly includes:

[0034] A guide plate is located inside the bile storage device;

[0035] The control lever has one end located outside the bile storage device and the other end inserted into the bile storage device and connected to the guide plate.

[0036] The second piston rod is located above the liquid guide plate, and one end of the second piston rod is slidably connected to the bile storage device, while the other end is located outside the bile storage device.

[0037] The linkage rod is located outside the bile storage device, with one end connected to the second piston rod and the other end in contact with the end of the control rod.

[0038] To facilitate opening the bile outlet, the above technical solution is further specified, and the linkage includes:

[0039] The linkage rod body is connected to the end of the second piston rod;

[0040] The guide block is located at the end of the linkage rod body away from the second piston rod.

[0041] To further define the above technical solution, the bile discharge assembly also includes a third reset elastic element, which is disposed on the outside of the bile storage device and is sleeved with the second piston rod.

[0042] To further refine the above technical solution, the bile storage device is also equipped with a bile auxiliary reinfusion component; the bile auxiliary reinfusion component includes:

[0043] The return push plate is vertically installed in the bile storage device and located below the guide plate;

[0044] Two magnetic push plates are respectively set on both sides of the bile storage device, and each magnetic push plate is magnetically connected to the return push plate;

[0045] Two telescopic rods are respectively set on both sides of the bile storage device, and each telescopic rod is connected to the corresponding magnetic push plate.

[0046] Beneficial effects:

[0047] I. This invention, through the combined design of a filter, a flushing fluid filling component, and a reminder-driven combined component, allows the reminder-driven combined component to apply pressure to the flushing fluid filling component when the filter becomes clogged. This connects the flushing fluid filling component to the drainage tube, allowing the flushing fluid to enter the drainage tube through the flushing fluid filling component, thus enabling timely backflushing of the filter. Simultaneously, the reminder-driven combined component can alert medical personnel to promptly clean the impurities filtered by the filter through changes in reagent color. The entire filter backflushing process requires no manual operation and is simple and convenient to use.

[0048] Second, through the combined design of the drainage tube, filter and flushing fluid outlet assembly, the flushing fluid can only be discharged from the drainage tube through the flushing fluid outlet assembly after the flushing fluid has been backwashed to the filter, that is, after the filter is unblocked. Therefore, if medical staff observe that flushing fluid is flowing out of the flushing fluid outlet assembly, they can be sure that the filter is unblocked, so that medical staff can shut off the external flushing fluid pump in time to ensure normal drainage from the drainage tube.

[0049] Third, the present invention, through the combined design of the liquid guide plate, control rod, linkage rod and second piston rod, allows the control rod to rotate the liquid guide plate into a horizontal rotating sleeve when bile needs to be discarded and discharged. At the same time, the control rod can drive the second piston rod to move through the linkage rod, so that the bile outlet can leak out and allow the bile to be discharged.

[0050] Fourth, the present invention, through the combined design of the first filter, the second filter, the third filter and the fourth filter, can filter bile multiple times, which can make the bile filtration more thorough and ensure the bile return effect. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a schematic diagram of the structure of a novel bile drainage device provided in an embodiment of the present invention;

[0053] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0054] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0055] Figure 4 for Figure 1 Top view of the device shown;

[0056] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0057] Figure 6 for Figure 5 Cross-sectional view of the bile storage device in the apparatus shown;

[0058] Figure 7 for Figure 4 A cross-sectional view of the control tube in the device shown;

[0059] Figure 8 for Figure 1 Right view of the device shown;

[0060] Figure 9 for Figure 8 Enlarged view of point D in the middle.

[0061] Figure 10 for Figure 1 A front view of the device shown;

[0062] Figure 11 for Figure 10 Cross-sectional view of the bile storage device shown;

[0063] Figure 12 for Figure 1 The diagram shows the usage status of the device during backwashing of the filter.

[0064] Figure 13 for Figure 12 Cross-sectional view of the central drainage tube at point 5;

[0065] Figure 14 for Figure 13 Enlarged view at point E in the middle;

[0066] Figure 15 for Figure 12 Cross-sectional view of the bile storage device;

[0067] Figure 16 for Figure 12 A schematic diagram of the device from another perspective;

[0068] Figure 17 for Figure 16 Enlarged view at point F;

[0069] Figure 18 A schematic diagram showing the positional relationship between the liquid guide plate and the return push plate;

[0070] Figure 19 A schematic diagram of the structure for filling the connector with flushing fluid;

[0071] Figure 20 This is a schematic diagram of the flushing fluid outlet assembly.

[0072] Among them, 1. Filter; 11. Threaded cap;

[0073] 2. Fluid filling assembly; 21. Fluid filling connector; 21a. L-shaped connecting pipe; 21b. First pressure plate; 21c. First piston rod; 22. Sleeve; 22a. Sleeve body; 22b. Second pressure plate; 22c. Air pressure pipe; 23. First reset elastic element; 24. Annular vent pipe;

[0074] 3. Reminder drive assembly; 31. Control tube; 32. Reaction tube; 33. Moving plug;

[0075] 4. Fluid outlet assembly; 41. Sealing rod; 41a. Through hole; 42. Second check valve; 43. Second reset elastic element;

[0076] 5. Drainage tube; 51. Longitudinal pipeline; 52. First check valve;

[0077] 6. Bile storage device; 61. Bile discharge tube;

[0078] 7. Bile discharge assembly; 71. Fluid guide plate; 72. Control rod; 73. Second piston rod; 74. Linkage rod; 74a. Linkage rod body; 74b. Guide block; 75. Third reset elastic element; 76. Third one-way valve;

[0079] 8. Third filter; 9. Fourth filter; 10. T-tube;

[0080] 12. Feedback push plate; 13. Magnetic push plate; 14. Telescopic rod. Detailed Implementation

[0081] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0082] In the description of this invention, it should be understood that the terms "length direction," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and 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, and therefore should not be construed as a limitation of the invention. Furthermore, features limited to "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0083] 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.

[0084] The inventors discovered that with current bile drainage devices, medical staff cannot promptly determine whether the drainage tube is blocked, making it difficult to clear the blockage and causing significant inconvenience.

[0085] Based on the above findings, this application proposes a novel bile drainage device, comprising a filter 1, a flushing fluid filling assembly 2, a reminder and drive assembly 3, a flushing fluid outlet assembly 4, a drainage tube 5, a bile storage device 6, and a bile discharge assembly 7. This application utilizes the following design to enable the entire device to promptly flush the filter and remind medical personnel to clean the impurities filtered by the filter 1, specifically:

[0086] 1. Multiple filters can be set up to filter the bile drained from the patient's body multiple times, ensuring the bile reinfusion effect;

[0087] 2. The reminder drive assembly 3 can apply pressure to the flushing fluid filling assembly 2 when the drainage tube 5 is blocked. The flushing fluid filling assembly 2 is connected to the drainage tube 5, which facilitates the flushing fluid to enter the drainage tube 5 to backwash the filter 1. At the same time, the purple litmus reagent in the reminder drive assembly 3 turns red after reacting with bile, which reminds medical staff that the drainage tube 5 is blocked, so that medical staff can open the threaded part 11 in time to clean the filter 1.

[0088] 3. The bile storage device 6 is also equipped with two filters to filter the bile multiple times, so as to improve the bile return effect;

[0089] 4. When there is no need to store bile, the bile can be discharged and discarded through the bile discharge component 7, which is simple and convenient to use.

[0090] Example 1

[0091] This embodiment provides a novel bile drainage device, such as Figure 1-20 As shown, it includes a filter 1, a flushing fluid filling assembly 2, an alert drive assembly 3, a flushing fluid outlet assembly 4, a drainage tube 5, a bile storage device 6, and a bile discharge assembly 7.

[0092] The drainage tube 5 is made of a rigid material. It should be noted that the material of the drainage tube 5 is not limited in this embodiment of the invention. For example, the drainage tube 5 is made of rigid medical plastic. In actual use, one end of the drainage tube 5 is fixedly connected to the T-shaped tube 10, and the other end is fixedly connected to the bile storage device 6 through a flexible tube, and communicates with the interior of the bile storage device 6.

[0093] Specifically, a first one-way valve 52 is provided at the end where the drainage tube 5 connects to the T-shaped tube 10. This allows bile from the patient's body to enter the drainage tube 5 after passing through the T-shaped tube 10, preventing bile in the drainage tube 5 from flowing back into the T-shaped tube 10. A longitudinal conduit 51 is also provided below the drainage tube 5, and the longitudinal conduit 51 is connected to the drainage tube 5. This allows the irrigation fluid outlet assembly 4 to be fixedly installed within the longitudinal conduit 51, facilitating the outflow of irrigation fluid. It should be noted that the T-shaped tube 10 and the first one-way valve 52 provided in this embodiment are existing technologies, and this embodiment does not improve upon them.

[0094] The drainage tube 5 is equipped with a filter 1 to filter out impurities such as debris and flocculent matter in the bile, ensuring safe bile reinfusion later. In actual use, this embodiment of the invention does not limit the number of filters 1 in the drainage tube 5. For example, this embodiment of the invention describes two filters 1 with identical structures in the drainage tube, namely the first filter and the second filter.

[0095] Specifically, filter 1 is a cylindrical structure with multiple filter holes on the side; correspondingly, drainage tube 5 is provided with a pipe that matches and snaps into filter 1, and the port of the pipe is provided with a threaded cap 11 so that medical staff can open the threaded cap 11 to clean the impurities filtered by filter 1.

[0096] The flushing fluid filling assembly 2 includes a flushing fluid filling pump head 21, a sleeve 22, and a plurality of first reset elastic elements 23. The flushing fluid filling pump head 21 and the sleeve 22 are both made of rigid material; for example, this rigid material is medical-grade plastic. It should be noted that the flushing fluid provided in this embodiment is prior art, and this embodiment does not improve upon it. For example, the flushing fluid is physiological saline.

[0097] The flushing fluid filling pump head 21 includes an L-shaped connecting pipe 21a, a first pressure plate 21b, and multiple first piston rods 21c.

[0098] Specifically, one end of the L-shaped connecting tube 21a is connected to an external flushing fluid pumping device, and the other end has an opening and is fitted with a sleeve 22; in the normal bile drainage state, the L-shaped connecting tube 21a is inside the sleeve 22, and the opening of the L-shaped connecting tube 21a is blocked and closed by the inner wall of the sleeve 22.

[0099] The first pressure plate 21b has a circular structure. The first pressure plate 21b is sleeved on the outside of the L-shaped connecting pipe 21a and is fixedly connected to the L-shaped connecting pipe 21a.

[0100] Multiple first piston rods 21c are arranged at equal intervals on the bottom surface of the first pressure plate 21b, and are arranged circumferentially with the L-shaped connecting tube 21a as the center; specifically, each first piston rod 21c has a piston on its bottom surface; it should be noted that the embodiment of the present invention does not limit the fixed connection method between the first pressure plate 21b, the L-shaped connecting tube 21a, and the first piston rods 21c. For example, the fixed connection method is adhesive bonding or injection molding.

[0101] The sleeve 22 includes a sleeve body 22a, a second pressure plate 22b, multiple air pressure pipes 22c, and a pressure sensor.

[0102] Specifically, the sleeve body 22a is fixedly connected to the drainage tube 5 and communicates with the interior of the drainage tube 5;

[0103] The second pressure plate 22b has a circular structure and is disposed at the open end of the sleeve body 22a, and is fixedly connected to the outer surface of the sleeve body 22a. A plurality of first reset elastic elements 23 are fixedly provided on the upper surface of the second pressure plate 22b, and each first reset elastic element 23 is sleeved with a corresponding first piston rod 21c. It should be noted that the specific structure of the first reset elastic element 23 is not limited in this embodiment of the invention; preferably, the first reset elastic element 23 is a spring.

[0104] Multiple pneumatic tubes 22c are arranged at equal intervals on the bottom surface of the second pressure plate 22b with the sleeve body 22a as the center; an annular vent pipe 24 is also provided below the second pressure plate 22b, the annular vent pipe 24 is connected to each pneumatic tube 22c, and one of the pneumatic tubes 22c is connected to the reminder drive joint assembly 3; specifically, each pneumatic tube 22c is a tubular structure with an upward opening, and each pneumatic tube 22c is sleeved with the corresponding first piston rod 21c;

[0105] The pressure sensor is installed inside the air pressure pipe 22c. The pressure sensor is used to detect the pressure between the air pressure pipe 22c and the piston of the first piston rod 21c. When the pressure between the air pressure pipe 22c and the first piston rod 21c reaches a preset value, the external flushing fluid pumping device is turned on so that the flushing fluid enters the drainage pipe 5 through the opening of the L-shaped connecting pipe 21a.

[0106] The working principle of the flushing fluid filling component 2 provided in this embodiment of the invention is as follows: the reminder drive assembly 3 applies downward pressure to each first piston rod 21c, causing each first piston rod 21c to move downward. Since each first piston rod 21c is fixedly connected to the L-shaped connecting pipe 21a through the first pressure plate 21b, the L-shaped connecting pipe 21a moves downward synchronously during the downward movement of the first piston rod 21c. This allows the opening at the lower end of the L-shaped connecting pipe 21a to no longer be blocked by the inner wall of the sleeve body 22a, but to be located inside the drainage pipe 5, so that the flushing fluid enters the interior of the drainage pipe 5 after passing through the L-shaped connecting pipe 21a.

[0107] The reminder drive assembly 3 includes a control tube 31, a reaction tube 32, and a moving plug 33. Both the control tube 31 and the reaction tube 32 are made of rigid material; for example, this rigid material is medical-grade plastic.

[0108] The control tube 31 is located on one side of the drainage tube 5, and one end of the control tube 31 is connected to the longitudinal pipeline 51, and the other end is connected to any air pressure tube 22c.

[0109] The reaction tube 32 and the control tube 31 are arranged perpendicularly to each other and are connected to each other; wherein, the inside of the reaction tube 32 is pre-filled with purple litmus reagent.

[0110] The movable plug 33 is slidably disposed inside the control tube 31. Specifically, the friction between the movable plug 33 and the inner wall of the control tube 31 can be set according to the internal air pressure of the drainage tube 5, so that when bile is draining normally, the movable plug 33 is located at the connection between the reaction tube 32 and the control tube 31 to block the opening of the reaction tube 32.

[0111] The working principle of the reminder driver joint component 3 provided in this embodiment of the invention is as follows:

[0112] If the filter 1 in the drainage tube 5 becomes blocked, bile cannot pass through the first filter and remains in the drainage tube 5. The bile pushes the flushing fluid outlet assembly 4 downward, causing the flushing fluid outlet assembly 4 to move downward as a whole until the upper end of the flushing fluid outlet assembly 4 is below the connection between the control tube 31 and the longitudinal tube 51. At this time, the connection between the control tube 31 and the longitudinal tube 51 leaks out, and then bile enters the control tube 31 and pushes the moving plug 33 to move closer to the end of the pressure tube 22c, causing the internal pressure of the pressure tube 22c to increase. At the same time, since the connection between the control tube 31 and the reaction tube 32 is no longer blocked by the moving plug 33, bile enters the reaction tube 32 and reacts with the purple litmus reagent, causing the purple litmus reagent to turn red, reminding medical staff that the drainage tube 5 is blocked.

[0113] As the moving plug 33 moves closer to the end of the air pressure pipe 22c, the pressure between the air pressure pipe 22c and the piston of the first piston rod 21c increases, causing the first piston rod 21c to move downward. The first piston rod 21c drives the L-shaped connecting pipe 21a to move downward through the first pressure plate 21b until the opening of the L-shaped connecting pipe 21a is no longer blocked by the sleeve body 22a, that is, the L-shaped connecting pipe 21a and the drainage pipe 5 are connected. At the same time, after the pressure sensor installed in the air pressure pipe 22c detects that the pressure between the air pressure pipe 22c and the first piston rod 21c has reached a preset value, the external flushing liquid pumping device is turned on so that the flushing liquid enters the drainage pipe 5 after passing through the L-shaped connecting pipe 21a, thereby backwashing the first filter and the second filter.

[0114] The flushing fluid outlet assembly 4 is located inside the longitudinal pipeline 51. The flushing fluid outlet assembly 4 includes a plugging rod 41, a second check valve 42, and multiple second elastic reset elements 43.

[0115] Specifically, the sealing rod 41 has a cylindrical structure, and the center of the sealing rod 41 is provided with a through hole 41a that communicates with the outside, and the upper end of the sealing rod 41 is provided with a piston for connecting with the longitudinal pipeline 51.

[0116] The second one-way valve 42 is a magnetic valve, and the second one-way valve 42 is disposed inside the through hole 41a; specifically, the second one-way valve 42 is a circular plate structure, one end of the second one-way valve 42 is rotatably connected to the inner wall of the through hole 41a, and the other end is magnetically connected to the inner wall of the through hole 41a, wherein the sealing rod 41 is embedded with a permanent magnetic block that is magnetically connected to the second one-way valve 42;

[0117] Multiple second elastic reset elements 43 are disposed between the sealing rod 41 and the longitudinal pipeline 51, with the upper end of each second elastic reset element 43 fixedly connected to the piston of the sealing rod 41 and the lower end fixedly connected to the port of the longitudinal pipeline 51. It should be noted that the structure of the second elastic reset element 43 is not limited in this embodiment of the invention; preferably, the second elastic reset element 43 is a spring.

[0118] When the drainage tube 5 becomes blocked, bile remains in the drainage tube 5 and presses down on the sealing rod 41. The sealing rod 41 moves downward until the piston of the sealing rod 41 is below the connection between the control tube 31 and the longitudinal tube 51. At this time, the connection between the control tube 31 and the longitudinal tube 51 leaks out, and the second elastic reset member 43 is compressed. It should be noted that at this time, the force of the bile pressing down on the sealing rod 41 is insufficient to open the second one-way valve 42.

[0119] As bile enters the control tube 31 and pushes the movable plug 33 to move closer to the end of the pressure tube 22c, the movable plug 33 fills the pressure tube 22c with gas from the control tube 31, causing the first piston rod 21c to move downward until the L-shaped connecting tube 21a and the drainage tube 5 are connected. At the same time, if the pressure sensor detects that the pressure between the pressure tube 22c and the first piston rod 21c reaches a preset value, the external flushing fluid pumping device is turned on so that the flushing fluid enters the drainage tube 5 through the opening of the L-shaped connecting tube 21a, so that the flushing fluid can backwash the first filter and the second filter.

[0120] After flushing with the flushing fluid for a period of time to clear both the first and second filters, the flushing fluid passes through the first filter and is located at the upper end of the opening of the sealing rod 41. Under the push of the flushing fluid, the second one-way valve 42 is opened. At the same time, part of the flushing fluid enters the control pipe 31. This part of the flushing fluid pushes the moving plug 33 to continue moving towards the end closer to the air pressure pipe 22c until the moving plug 33 reaches the end of the control pipe 31, and the flushing fluid is discharged to the outside of the longitudinal pipeline 51 through the through hole 41a.

[0121] When medical staff observe that the flushing fluid is discharged from the longitudinal tube 51, they can immediately shut off the external flushing fluid pumping device. As a result, the moving plug 33 is no longer pushed by the flushing fluid, and thus no longer applies pressure to the pneumatic tube 22c. At this time, the first reset elastic element 23 gradually returns to its natural state. The first reset elastic element 23 drives the L-shaped connecting tube 21a to move upward through the first piston rod 21c until the lower end opening of the L-shaped connecting tube 21a returns to its initial position, that is, it contacts the sleeve body 22a and closes it.

[0122] As the L-shaped connecting tube 21a moves upward, the gas in the pressure tube 22c enters the control tube 31, thereby pushing the moving plug 33 to move away from the pressure tube 22c, so as to squeeze the flushing fluid into the interior of the drainage tube 5 until the moving plug 33 returns to the initial position.

[0123] At the same time, the second one-way valve 42 is no longer closed by the thrust of the flushing fluid, and the sealing rod 41 gradually returns to its initial position under the action of the second reset elastic element 43 to block the connection between the control tube 31 and the longitudinal pipeline 51 so that bile can be drained normally. At this time, some of the flushing fluid and bile mix and enter the bile storage device 6 through the drainage tube 5.

[0124] The bile storage device 6 is a box structure with a receiving cavity. In actual use, the bile storage device 6 can be placed on the ground or on an existing fixed support for bile storage. Specifically, the bile inlet of the bile storage device 6 is equipped with a third filter 8 for third-degree filtration of the bile, and a fourth filter 9 is also provided inside the bile storage device 6 for fourth-degree filtration of the bile. This multiple filtration of the bile ensures more thorough filtration and guarantees the bile return effect.

[0125] In this embodiment, both the third filter 8 and the fourth filter 9 are filter screens. It should be noted that the third filter 8 and the fourth filter 9 provided in this embodiment are existing technologies, and this embodiment does not make any improvements to them.

[0126] In practical use, the bile storage device 6 can be made of a transparent material, and it has graduation lines to allow medical personnel to determine the bile drainage volume. The bile storage device 6 can be made of glass or medical-grade transparent plastic.

[0127] In order to facilitate the extrusion of bile after four filtrations for reinfusion, a bile auxiliary reinfusion assembly is also provided inside the bile storage device 6. The bile auxiliary reinfusion assembly includes a reinfusion pusher plate 12, two magnetic pushers 13 and two telescopic rods 14.

[0128] Specifically, the return push plate 12 is vertically installed in the receiving cavity of the bile storage device 6;

[0129] Two magnetic push plates 13 are located on the outer sides of the bile storage device 6, and each magnetic push plate 13 is magnetically connected to the side of the reinfusion push plate 12. Each magnetic push plate 13 has a permanent magnet embedded on the side near the bile storage device 6. Correspondingly, the reinfusion push plate 12 has magnetic components embedded on both sides that are magnetically connected to the permanent magnet. In this way, when the magnetic push plate 13 moves, the reinfusion push plate 12 moves synchronously with the magnetic push plate 13 under the magnetic attraction.

[0130] Two telescopic rods 14 are located on the outer sides of the bile storage device 6, and the movable end of each telescopic rod 14 is fixedly connected to the corresponding magnetic push plate 13. It should be noted that the telescopic rod 14 provided in this embodiment of the invention is prior art, and this embodiment of the invention does not improve upon it. For example, the telescopic rod 14 is an electric push rod.

[0131] In actual use, the telescopic rod 14 can be activated, which will drive the magnetic push plate 13 to move toward the bile return port on the bile storage device 6. At this time, the return push plate 12 moves synchronously with the magnetic push plate 13 under the magnetic attraction, thereby pushing the bile in the bile storage device 6 to the outside of the bile return port of the bile storage device 6 to assist in bile return.

[0132] Example 2

[0133] Based on Embodiment 1, unlike Embodiment 1, the novel bile drainage device provided in this embodiment of the invention further includes a bile discharge component 7, so that the bile after three filtrations is discharged from the bile storage device 6 and then discarded.

[0134] The bile discharge assembly 7 includes a guide plate 71, a control rod 72, a second piston rod 73, a linkage rod 74, a third reset elastic element 75, and a third one-way valve 76. It should be noted that the third reset elastic element 75 and the third one-way valve 76 provided in this embodiment are prior art, and this embodiment does not improve upon them; preferably, the third reset elastic element 75 is a spring.

[0135] Specifically, the guide plate 71 is disposed inside the receiving cavity of the bile storage device 6 and is rotatably connected to the inside of the bile storage device 6; wherein, the guide plate 71 is located above the return push plate 12; it should be noted that, in order to improve the sealing between the guide plate 71 and the inner wall of the bile storage device 6, preferably, the guide plate 71 is an airbag plate, so that when the guide plate 71 is rotated to a horizontal state with the control rod 72, the guide plate 71 deforms after contacting the inner wall of the bile storage device 6, thereby improving the sealing between the guide plate 71 and the inner wall of the bile storage device 6, so as to discharge and discard bile.

[0136] The control lever 72 is located on the outside of the bile storage device 6. Specifically, the control lever 72 has an L-shaped structure, and one end of the control lever 72 passes through the receiving cavity of the bile storage device 6 and is fixedly connected to the guide plate 71. The control lever 72 is rotatably connected to the bile storage device 6 through a torsion spring. The end of the control lever 72 away from the guide plate 71 is provided with a groove that engages with the linkage rod 74. In this way, when the control lever 72 rotates, the guide plate 71 rotates synchronously with the control lever 72.

[0137] One end of the second piston rod 73 is located inside the discharge pipe 61 of the bile storage device 6, and the piston of the second piston rod 73 blocks the bile discharge outlet located on the discharge pipe 61. The other end is located outside the bile storage device 6 and is fixedly connected to the linkage rod 74.

[0138] A third reset elastic element 75 is also sleeved on the second piston rod 73, and one end of the third reset elastic element 75 is fixedly connected to the end of the outlet of the discharge pipe 61. In this way, when the third reset elastic element 75 is in its natural state, the piston of the second piston rod 73 is located at the bile outlet on the discharge pipe 61 so as to block the bile outlet.

[0139] The linkage 74 includes the linkage body 74a and the guide block 74b.

[0140] Specifically, the linkage rod body 74a and the second piston rod 73 are arranged perpendicular to each other, and one end of the linkage rod body 74a is fixedly connected to the end of the second piston rod 73, and the other end is fixedly connected to the guide block 74b.

[0141] The guide block 74b has a triangular structure, and the inclined surface of the guide block 74b is perpendicular to the end of the control rod 72 away from the liquid guide plate 71. Thus, in the initial state, as... Figure 11 As shown, the guide plate 71 is in a vertical position so that the bile after three filtrations can reach the bottom of the bile storage device after passing through the fourth filter 9, so that the bile can be returned.

[0142] In cases where bile needs to be discarded, Figure 15 As shown, medical staff can hold and rotate the control lever 72 downwards. The handheld end of the control lever 72 pushes the guide block 74 outwards along the inclined surface of the guide block 74 until the groove at the handheld end of the control lever 72 connects with the bottom end of the guide block 74b. At this time, the guide block 74 drives the second piston rod 73 to extend outwards through the linkage rod body 74a, so that the piston of the second piston rod 73 no longer blocks the bile outlet, so that the bile can be discharged from the bile storage device 6 and discarded. At the same time, the guide plate 71 rotates from the vertical state to the horizontal state with the control lever 72, so that the bile is discharged from the discharge tube 61 and discarded. After the bile is discharged, the medical staff pulls the guide block 74b outwards with one hand and releases the control lever 72 with the other hand, so that the control lever 72 returns to the initial position to block the bile outlet. At this time, the guide plate 71 is in the set state to perform a fourth filtration of the bile, which facilitates bile reinfusion.

[0143] Application examples:

[0144] Mr. Liu underwent percutaneous transhepatic biliary drainage due to obstructive jaundice;

[0145] S1: Location and disinfection; Specifically, the patient is placed in a supine position, the target bile duct is located by ultrasound or X-ray, the puncture area is disinfected and local anesthesia is administered.

[0146] S2: Bile duct puncture; specifically, a fine needle is used to puncture the dilated bile duct, bile is aspirated to confirm the location, and contrast agent is injected to visualize the biliary structure.

[0147] S3: Place a T-tube 10 to drain bile; specifically, after dilating the channel along the guidewire, insert the external drainage tube or internal and external drainage tube into the bile duct and fix it to the patient's skin;

[0148] S4: The T-shaped tube 10 is connected to one end of the drainage tube 5, and the other end of the drainage tube 5 is connected to the bile inlet of the bile storage device 6 through a flexible tube;

[0149] S5: Postoperative confirmation; specifically, confirm the catheter position with imaging, observe the bile drainage volume and characteristics, and adjust the catheter depth if necessary.

[0150] During the drainage process, if the first and second filters become clogged, bile will remain in the drainage tube 5 and press down on the sealing rod 41. The sealing rod 41 will move downward until the piston of the sealing rod 41 is below the connection between the control tube 31 and the longitudinal tube 51. At this time, the connection between the control tube 31 and the longitudinal tube 51 will leak out, and bile will enter the control tube 31 and push the moving plug 33 to move closer to the end of the pressure tube 22c, so that the internal pressure of the pressure tube 22c will increase. At the same time, since the connection between the control tube 31 and the reaction tube 32 is no longer blocked by the moving plug 33, bile will enter the reaction tube 32 and react with the purple litmus reagent, so that the purple litmus reagent turns red, in order to remind medical staff that the filter 1 is clogged.

[0151] As the movable plug 33 moves toward the end closer to the pressure pipe 22c, it fills the inside of the pressure pipe 22c with gas from the control pipe 31, increasing the pressure between the pressure pipe 22c and the piston of the first piston rod 21c. This causes the first piston rod 21c to move downward. The first piston rod 21c drives the L-shaped connecting pipe 21a to move downward through the first pressure plate 21b until the opening of the L-shaped connecting pipe 21a is no longer blocked by the sleeve body 22a. The L-shaped connecting pipe 21a and the drainage pipe 5 are then connected. At the same time, if the pressure sensor detects that the pressure between the pressure pipe 22c and the first piston rod 21c reaches a preset value, the external flushing liquid pumping device is turned on so that the flushing liquid enters the drainage pipe 5 through the opening of the L-shaped connecting pipe 21a, so that the flushing liquid can backwash the first filter and the second filter.

[0152] After flushing for a period of time, both the first and second filters are cleared. The flushing fluid passes through the first filter and is located at the upper end of the opening of the sealing rod 41. Since the outflow pressure of the flushing fluid is greater than the outflow pressure of the bile, the second one-way valve 42 is opened under the push of the flushing fluid. The flushing fluid flows out of the longitudinal pipeline 5 through the second one-way valve 42, and part of the flushing fluid enters the control pipe 31. Part of the flushing fluid pushes the moving plug 33 to continue moving towards the end closer to the pneumatic pipe 22c until the moving plug 33 reaches the end of the control pipe 31.

[0153] When medical staff observe the flushing fluid being discharged from the longitudinal tubing 51, they can immediately shut off the external flushing fluid pump and open the threaded cap 11 to clean the first and second filters 2.

[0154] When the external flushing fluid pump is shut off, the movable plug 33 is no longer pushed by the flushing fluid, and thus no longer applies pressure to the pneumatic tube 22c. At this time, the first reset elastic element 23 gradually returns to its natural state, and drives the L-shaped connecting tube 21a to move upward through the first piston rod 21c until the lower opening of the L-shaped connecting tube 21a contacts and closes with the sleeve body 22a. At the same time, the first piston rod 21c fills the control tube 31 with gas from the pneumatic tube 22c, thereby pushing the movable plug 33 back to its initial position to seal the connection between the reaction tube 32 and the control tube 31.

[0155] After the external flushing fluid pump is shut off, the second one-way valve 42 is no longer pushed by the flushing fluid and closes. At the same time, the sealing rod 41 gradually returns to its initial position under the action of the second reset elastic element 43 to block the connection between the control pipe 31 and the longitudinal pipeline 51, so that bile can be drained normally. At this time, some of the flushing fluid and bile mix and enter the bile storage device 6 through the drainage pipe 5.

[0156] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A novel bile drainage device, comprising a drainage tube (5), characterized in that, Also includes: The filter (1) is connected to the drainage tube (5); The flushing fluid filling assembly (2) is located on the side of the filter (1) away from the patient and is connected to the drainage tube (5); The reminder drive assembly (3) is connected at one end to the flushing fluid filling assembly (2) and at the other end to the drainage tube (5). The end of the reminder drive assembly (3) connected to the drainage tube (5) is located on the side of the filter (1) closer to the patient. It is used to remind the drainage tube (5) of blockage and to drive the flushing fluid inlet of the flushing fluid filling assembly (2) to open. The flushing fluid outlet assembly (4) is connected to the drainage tube (5) and is located below the reminder drive assembly (3).

2. The novel bile drainage device according to claim 1, characterized in that, The flushing fluid filling assembly (2) includes: Flushing fluid is introduced into connector (21); A sleeve (22) is placed on the drainage tube (5) and is connected to the flushing fluid filling connector (21).

3. The novel bile drainage device according to claim 2, characterized in that, The flushing fluid filling connector (21) includes: The L-shaped connecting pipe (21a) is connected at one end to an external flushing fluid filling device, and at the other end is an opening that fits into the sleeve (22). The first pressure plate (21b) is connected to the L-shaped connecting pipe (21a); Multiple first piston rods (21c) are respectively disposed on the bottom surface of the first pressure plate (21b).

4. The novel bile drainage device according to claim 3, characterized in that, Sleeve (22) includes: The sleeve body (22a) is connected to the drainage tube (5); The second pressure plate (22b) is disposed at the end of the sleeve body (22a); Multiple pneumatic tubes (22c) are respectively disposed on the bottom surface of the second pressure plate (22b), and each pneumatic tube (22c) is sleeved with the corresponding first piston rod (21c); The pressure sensor is located inside the air pressure tube (22c).

5. A novel bile drainage device according to claim 4, characterized in that, The reminder driver joint component (3) includes: The control tube (31) is connected at one end to the longitudinal pipe (51) on the drainage tube (5) and at the other end to the air pressure tube (22c); The reaction tube (32) is connected to the control tube (31); The movable plug (33) is located inside the control tube (31).

6. A novel bile drainage device according to claim 5, characterized in that, The flushing fluid outlet assembly (4) includes: A plugging rod (41) is sleeved with a longitudinal pipeline (51), and a through hole (41a) is provided on the plugging rod (41); The second check valve (42) is disposed in the through hole (41a); The second reset elastic element (43) is installed in the longitudinal pipeline (51) and is sleeved with the sealing rod (41).

7. A novel bile drainage device according to claim 1, characterized in that, The end of the drainage tube (5) is also provided with a bile storage device (6), and the bile storage device (6) is provided with a bile discharge assembly (7); the bile discharge assembly (7) includes: A guide plate (71) is located inside the bile storage device (6); The control lever (72) has one end located outside the bile storage device (6) and the other end inserted into the bile storage device (6) and connected to the liquid guide plate (71); The second piston rod (73) is located above the liquid guide plate (71), and one end of the second piston rod (73) is slidably connected to the bile storage device (6), while the other end is located outside the bile storage device (6). The linkage rod (74) is located outside the bile storage device (6), and one end of the linkage rod (74) is connected to the second piston rod (73), and the other end is in contact with the end of the control rod (72).

8. A novel bile drainage device according to claim 7, characterized in that, Linkage rod (74) includes: The linkage body (74a) is connected to the end of the second piston rod (73); A guide block (74b) is located at the end of the linkage body (74a) away from the second piston rod (73).

9. A novel bile drainage device according to claim 7, characterized in that, The bile discharge assembly (7) also includes a third reset elastic element (75), which is disposed on the outside of the bile storage device (6) and is sleeved with the second piston rod (73).

10. A novel bile drainage device according to claim 7, characterized in that, The bile storage device (6) is also equipped with a bile auxiliary reinfusion assembly; the bile auxiliary reinfusion assembly includes: The return push plate (12) is vertically installed inside the bile storage device (6) and located below the liquid guide plate (71); Two magnetic push plates (13) are respectively set on both sides of the bile storage device (6), and each magnetic push plate (13) is magnetically connected to the return push plate (12). Two telescopic rods (14) are respectively set on both sides of the bile storage device (6), and each telescopic rod (14) is connected to the corresponding magnetic push plate (13).

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