A medical general surgery hepatobiliary drainage device
By introducing auxiliary self-positioning and sealing self-positioning structures into the hepatobiliary drainage device, the problem of unstable wound positioning was solved, enabling adaptive positioning and sealing of the wound and improving the device's effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
- Filing Date
- 2024-12-23
- Publication Date
- 2026-07-17
Smart Images
Figure CN119499466B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of general surgical technology, specifically to a hepatobiliary drainage device for general surgery. Background Technology
[0002] In the course of general surgery, hepatobiliary drainage is a common surgical procedure. The common bile duct is cut high up, and the narrowed hepatobiliary duct is gradually dilated under direct vision to carry out drainage. For example, patent CN111956872A discloses a hepatobiliary drainage device, specifically relating to the technical field of medical devices. The hepatobiliary drainage device includes a drainage tube with a reservoir connected to it, and a suction machine connected to the reservoir. Its key feature is that the drainage tube contains a baffle with a through hole at the bottom; a sleeve is slidably connected to one side of the baffle; a blocking block is rotatably connected inside the sleeve; and the blocking block has multiple drainage grooves with gradually increasing diameters circumferentially. This design solves the problem that existing hepatobiliary drainage devices cannot adjust the drainage efficiency according to the patient's actual condition, and can be used for fluid drainage within the patient's body cavity. For example, patent CN108939179A discloses a hepatobiliary drainage device, including a conical head, a rubber elastic bladder, a fluid inlet, a nut, a tube body, a support rod, a drainage tube, a cubic metal block, a trigger, a spring, a strip-shaped support block, a connecting tube, a first valve, a second valve, a third valve, a fourth valve, an air inlet, a rubber hand-held pressure bulb, a reservoir, a graduated strip, a venting tube, a drain tube, absorbent gelatin sponge, a ring-shaped fixing bracket, a bracket connector, a first connecting tube, and a second connecting tube. During use, it can more thoroughly remove accumulated fluid and debris from the affected area. The absorbent gelatin sponge can absorb the accumulated fluid and adsorb debris onto its surface. The rubber hand-held pressure bulb makes drainage more convenient and faster, not only making the drainage effect more obvious and efficient but also greatly simplifying the workflow for medical staff. For example, a hepatobiliary drainage device with publication number CN115869476A includes a drainage catheter, a dredging mechanism, and a negative pressure mechanism. One end of the drainage catheter is connected to a puncture needle, and the other end is connected to the negative pressure mechanism. The drainage catheter has a connection port. The dredging mechanism includes a shell, a driver, and a dredging rod. The shell has a dredging port, which is detachably connected to the connection port. The drainage tube is dredged by both expanding the tube wall and spiral drilling, which has a good dredging effect. Moreover, it does not require the drainage catheter to be pulled out of the patient's body, nor does it require water to be injected into the patient's body, making it more convenient to use. Most of the aforementioned existing technologies improve the overall structure. However, existing medical general surgical hepatobiliary drainage devices cannot adaptively position themselves at the wound site during operation, thus failing to ensure the stability of the drainage position and the sealing of the wound. This makes the wound site highly susceptible to infection due to prolonged contact with air, resulting in certain limitations in their use. Summary of the Invention
[0003] The purpose of this invention is to provide a hepatobiliary drainage device for general surgery, in order to solve the problem mentioned in the background art that during operation, it is impossible to perform adaptive positioning at the wound site to ensure the stability of the drainage position and the sealing of the wound, resulting in the wound site being easily exposed to air for a long time and thus causing infection.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a hepatobiliary drainage device for general surgery, comprising a hepatobiliary drainage tube body, an external threaded connector, and a built-in reserved insertion pipeline. The external threaded connector is threaded to the outer side of the end of the hepatobiliary drainage tube body, and the built-in reserved insertion pipeline is connected through the inner side of the hepatobiliary drainage tube body. The inner side of the hepatobiliary drainage tube body is provided with a reserved transverse receiving groove, and a nested fitting is nested inside the reserved transverse receiving groove. The outer side of the nested fitting corresponds to the inner side of the external threaded docking part. A first built-in docking liquid bladder is bonded to the inner surface of the reserved transverse receiving groove, and the first built-in docking liquid bladder docks with the inner end of the nested fitting. An auxiliary self-positioning structure is provided on the end side of the hepatobiliary drainage tube body. The inner side of the hepatobiliary drainage tube body is provided with a sealing self-positioning structure, which ensures a safe and sealed operation of the contacting built-in reserved insertion pipeline.
[0005] Furthermore, the auxiliary self-positioning structure is provided with a supply soft tube, and the supply soft tube passes through the inner side of the first built-in docking liquid bladder, and the supply soft tube is located inside the body of the hepatobiliary drainage tube; the outer end face of the body of the hepatobiliary drainage tube is connected to the second built-in docking liquid bladder, and the second built-in docking liquid bladder is connected to the end of the supply soft tube.
[0006] Furthermore, a reserved guide groove is provided on the outer surface of the hepatobiliary drainage tube body, and an abutting docking component is nested on the outer side of the reserved guide groove, and a return spring is fixedly connected between the outer side of the abutting docking component and the reserved guide groove; a reserved traction rope is connected to the outer side of the abutting docking component, and the reserved traction rope extends along the inner side of the hepatobiliary drainage tube body; a sealing nested docking component is nested on the end side of the hepatobiliary drainage tube body, and the sealing nested docking component is connected to the end of the reserved traction rope.
[0007] Furthermore, during the inward movement of the external threaded mating component, pressure is simultaneously applied to the contacting nested fitting component, and the nested fitting component presses against the first internal mating liquid bladder, causing it to supply the second internal mating liquid bladder through the supply soft pipe. During the expansion of the second internal mating liquid bladder, the outer contacting mating component is pushed outward.
[0008] Furthermore, when the contacting docking component moves outward, the reserved traction rope drives the sealed nested docking component to move synchronously along the end side of the liver and gallbladder drainage tube body.
[0009] Furthermore, the sealing self-positioning structure is provided with a first docking reserved airbag, and the first docking reserved airbag is bonded to the inside of the end side of the liver and gallbladder drainage tube body, and the lower end of the first docking reserved airbag is docked with the upper end of the sealing nested docking piece; an air supply hose passes through the inner side of the first docking reserved airbag, and the air supply hose passes through the inner side of the liver and gallbladder drainage tube body.
[0010] Furthermore, the inner wall of the hepatobiliary drainage tube body is bonded with a second pre-reserved air bladder, and the second pre-reserved air bladder is connected to the end of the air supply hose. The inner wall of the hepatobiliary drainage tube body is bonded with an elastic docking layer, and the inner side of the elastic docking layer is connected to the lower end of the second pre-reserved air bladder. The outer side of the elastic docking layer is rotatably connected with a guide docking wheel.
[0011] Furthermore, during the inward movement of the sealed nested docking component, pressure is simultaneously applied to the first docking reserved airbag in contact, and the first docking reserved airbag supplies air to the interior of the second docking reserved airbag at the end through the air supply hose.
[0012] Furthermore, during the expansion of the second docking reserved airbag, the outer elastic docking layer is pushed outward, so that the elastic docking layer, together with the outer guide docking wheel, synchronously guides and positions the built-in reserved insertion pipeline in contact.
[0013] Compared with the prior art, the beneficial effects of the present invention are: This medical general surgery hepatobiliary drainage device is equipped with an auxiliary self-positioning structure. As the device is inserted into the patient's body, the user can rotate the external threaded connector as needed, causing it to move inward and apply pressure to the contacting nested fitting piece. This, in conjunction with the first internal docking fluid bladder, supplies fluid from the supply soft tube to the second internal docking fluid bladder. The expanded second internal docking fluid bladder then assisted in fitting and positioning itself within the patient's body, preventing positional deviations during drainage. Furthermore, the fitted second internal docking fluid bladder fills the wound, preventing excessive blood loss and minimizing the risk of infection from excessive contact with air inside the wound, thus improving the device's practicality. Furthermore, as the second built-in docking fluid bladder expands and deforms upon receiving the supply, it will push the outer abutment docking member outward. The outwardly moving abutment docking member will drive the sealed nested docking members that are in contact with each other through the reserved traction rope, and move along the end side of the hepatobiliary drainage tube body. This allows for rapid and stable control and adjustment of the closed state of the hepatobiliary drainage tube body, preventing the unobstructed state from being mixed with blood and other tissues in the patient's body during the process of penetrating the patient's body, which would have an adverse effect on the drainage state. Equipped with a sealing self-positioning structure, during the inward movement of the sealed nested docking parts under pressure, it will pressurize the first docking reserved airbag, causing it to supply air to the second docking reserved airbag at the end through the air supply hose. The inflated second docking reserved airbag will push the evenly distributed elastic docking layer inside the liver and gallbladder drainage tube body to move outward. This allows the elastic docking layer, in conjunction with the outer guide docking wheel, to synchronously guide and position the contacting built-in reserved insertion pipeline, avoiding blockage at bending points during the insertion process and improving the service life of the device. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional half-section structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the air supply hose of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the central part of the structure; Figure 5 This is a schematic diagram of the partial cross-sectional three-dimensional structure of the second built-in docking liquid bladder of the present invention; Figure 6 This is a three-dimensional structural diagram of the contact joint of the present invention; Figure 7 A schematic diagram of the three-dimensional structure of the flexible conduit is provided for this invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the first built-in docking liquid bladder of the present invention in half section. Figure 9 This is a schematic diagram of the three-dimensional structure of the nested bonding component of the present invention.
[0015] In the diagram: 1. Liver and gallbladder drainage tube body; 2. External threaded connector; 3. Nested fitting piece; 4. Reserved transverse receiving groove; 5. First internal docking fluid bladder; 6. Supply soft tube; 7. Second internal docking fluid bladder; 8. Reserved guide groove; 9. Abutment connector; 10. Return spring; 11. Reserved traction rope; 12. Sealed nested connector; 13. First docking reserved air bladder; 14. Air supply hose; 15. Second docking reserved air bladder; 16. Elastic docking layer; 17. Guide docking wheel; 18. Internal reserved insertion pipeline. Detailed Implementation
[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.
[0017] Example 1: Please refer to Figure 1-9 The present invention provides the following technical solution: a hepatobiliary drainage device for general surgery, comprising a hepatobiliary drainage tube body 1, an external threaded connector 2, a nested fitting 3, a reserved transverse receiving groove 4, a first internal docking fluid bladder 5, a supply soft tube 6, a second internal docking fluid bladder 7, a reserved guide groove 8, an abutting connector 9, a reset spring 10, a reserved traction rope 11, a sealed nested connector 12, a first docking reserved air bladder 13, an air supply hose 14, a second docking reserved air bladder 15, an elastic docking layer 16, a guide docking wheel 17, and an internal reserved insertion pipe 18; The outer side of the end of the hepatobiliary drainage tube body 1 is threaded with an external threaded connector 2, and the inner side of the hepatobiliary drainage tube body 1 is connected with a built-in reserved insertion pipe 18; the inner side of the hepatobiliary drainage tube body 1 is provided with a reserved transverse receiving groove 4, and a nested fitting 3 is nested on the inner side of the reserved transverse receiving groove 4, and the outer side of the nested fitting 3 corresponds to the inner side of the external threaded connector 2; the inner surface of the reserved transverse receiving groove 4 is bonded with a first built-in docking liquid bladder 5, and the first built-in docking liquid bladder 5 is docked with the inner end of the nested fitting 3; the end side of the hepatobiliary drainage tube body 1 is provided with an auxiliary self-positioning structure. The auxiliary self-positioning structure is equipped with a supply soft tube 6, and the supply soft tube 6 passes through the inner side of the first built-in docking liquid bladder 5, and the supply soft tube 6 is located inside the hepatobiliary drainage tube body 1; the outer end face of the hepatobiliary drainage tube body 1 is connected to the second built-in docking liquid bladder 7, and the second built-in docking liquid bladder 7 is connected to the end of the supply soft tube 6. A reserved guide groove 8 is opened on the outer surface of the hepatobiliary drainage tube body 1, and an abutment docking member 9 is nested on the outer side of the reserved guide groove 8, and a return spring 10 is fixedly connected between the outer side of the abutment docking member 9 and the reserved guide groove 8; a reserved traction rope 11 is docked on the outer side of the abutment docking member 9, and the reserved traction rope 11 extends along the inner side of the hepatobiliary drainage tube body 1; a sealing nested docking member 12 is nested on the end side of the hepatobiliary drainage tube body 1, and the sealing nested docking member 12 is connected to the end of the reserved traction rope 11.
[0018] During the inward movement of the external threaded connector 2, pressure is simultaneously applied to the contacting nested fitting 3, and the nested fitting 3 presses against the contacting first internal docking fluid bladder 5, allowing it to supply fluid to the interior of the second internal docking fluid bladder 7 through the supply soft tube 6. As the second internal docking fluid bladder 7 expands, it pushes the outer contacting connector 9 outward. When the contacting connector 9 moves outward, the reserved traction rope 11 drives the sealed nested connector 12 to move synchronously along the end side of the hepatobiliary drainage tube body 1. As the device penetrates deeper into the patient's body, the user can rotate the external threaded connector 2 as needed, causing it to move inward and simultaneously apply pressure to the contacting nested fitting 3. This, in conjunction with the supply soft tube 6, allows the first internal docking fluid bladder 5 to supply fluid to the interior of the second internal docking fluid bladder 7, enabling the expanded second internal docking fluid bladder 7 to achieve auxiliary fitting and positioning within the patient's body. This avoids positional deviations during drainage operations, and the fitted second internal docking fluid bladder 7 can fill the wound, preventing excessive blood loss. Furthermore, it avoids excessive contact between the wound and air, which could lead to infection. As the second built-in docking fluid bladder 7 expands and deforms upon receiving the supply, it will push the outer abutment docking piece 9 outward. The outwardly moving abutment docking piece 9 will then drive the sealed nested docking pieces 12, which are in close contact with each other, to move along the end side of the hepatobiliary drainage tube body 1 via the reserved traction rope 11. This allows for rapid and stable control and adjustment of the closed state of the hepatobiliary drainage tube body 1, preventing the unobstructed state from mixing with the patient's blood and other tissues during the process of penetrating the patient's body, which could adversely affect the drainage state.
[0019] Example 2: Based on Example 1, a sealing self-positioning structure is also disclosed, the specific structure of which is as follows: The inner side of the hepatobiliary drainage tube body 1 is provided with a sealing self-positioning structure, which performs a sealing and safe operation on the contacting built-in reserved insertion pipeline 18.
[0020] The sealed self-positioning structure is provided with a first docking reserved airbag 13, which is bonded to the inner end of the hepatobiliary drainage tube body 1. The lower end of the first docking reserved airbag 13 is docked with the upper end of the sealing nested docking piece 12. An air supply hose 14 passes through the inner side of the first docking reserved airbag 13 and runs along the inner side of the hepatobiliary drainage tube body 1. A second docking reserved airbag 15 is bonded to the inner wall of the hepatobiliary drainage tube body 1, and the second docking reserved airbag 15 is docked with the end of the air supply hose 14. An elastic docking layer 16 is bonded to the inner wall of the hepatobiliary drainage tube body 1, and the inner side of the elastic docking layer 16 is docked with the lower end of the second docking reserved airbag 15. A guide docking wheel 17 is rotatably connected to the outer side of the elastic docking layer 16. During the inward movement of the sealed nested docking piece 12, pressure is simultaneously applied to the first docking reserved airbag 13 that is in contact, and the first docking reserved airbag 13 supplies air to the interior of the second docking reserved airbag 15 at the end through the air supply hose 14.
[0021] During the expansion of the second docking reserved airbag 15, the outer elastic docking layer 16 is pushed outward, so that the elastic docking layer 16, in conjunction with the outer guide docking wheel 17, synchronously guides and positions the contacting built-in reserved insertion pipeline 18. During the process of the sealed nested docking part 12 being pressed inward, it will pressurize the contacting first docking reserved airbag 13, so that it supplies air to the interior of the second docking reserved airbag 15 at the end through the air supply hose 14. The expanded second docking reserved airbag 15 will push the evenly distributed elastic docking layer 16 inside the liver and gallbladder drainage tube body 1 outward, so that the elastic docking layer 16, in conjunction with the outer guide docking wheel 17, synchronously guides and positions the contacting built-in reserved insertion pipeline 18, avoiding blockage at the bending part during its guided insertion.
[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A hepatobiliary drainage device for general surgery, comprising a hepatobiliary drainage tube body (1), an external threaded connector (2), and a built-in reserved insertion pipe (18), wherein the external threaded connector (2) is threadedly connected to the outer side of the end of the hepatobiliary drainage tube body (1), and the built-in reserved insertion pipe (18) is connected through the inner side of the hepatobiliary drainage tube body (1). Its features are: The inner side of the liver and gallbladder drainage tube body (1) is provided with a reserved transverse receiving groove (4), and a nested fitting (3) is nested inside the reserved transverse receiving groove (4). The outer side of the nested fitting (3) corresponds to the inner side of the external threaded docking part (2). The inner surface of the reserved transverse receiving groove (4) is bonded with a first built-in docking liquid bladder (5), and the first built-in docking liquid bladder (5) is docked with the inner end of the nested fitting part (3). An auxiliary self-positioning structure is provided on the end side of the liver and gallbladder drainage tube body (1). The inner side of the hepatobiliary drainage tube body (1) is provided with a sealing self-positioning structure, which performs a sealing and safe operation on the contacting built-in reserved insertion pipeline (18). The auxiliary self-positioning structure is provided with a supply soft tube (6), and the supply soft tube (6) passes through the inner side of the first built-in docking liquid bladder (5), and the supply soft tube (6) is located inside the body (1) of the hepatobiliary drainage tube. The outer end face of the hepatobiliary drainage tube body (1) is connected to a second built-in docking fluid bladder (7), and the second built-in docking fluid bladder (7) is connected to the end of the supply soft tube (6); a reserved guide groove (8) is opened on the outer surface of the hepatobiliary drainage tube body (1), and an abutting docking piece (9) is nested on the outer side of the reserved guide groove (8), and a return spring (10) is fixedly connected between the outer side of the abutting docking piece (9) and the reserved guide groove (8); The outer side of the contacting docking piece (9) is connected to a reserved traction rope (11), and the reserved traction rope (11) extends along the inner side of the liver and gallbladder drainage tube body (1). The end side of the liver and gallbladder drainage tube body (1) is nested with a sealed nested docking piece (12), and the sealed nested docking piece (12) and the end of the reserved traction rope (11) are connected to each other. During the inward movement of the external threaded docking piece (2), pressure is applied to the contacting nested fitting piece (3) at the same time, and the nested fitting piece (3) presses the contacting first internal docking liquid bladder (5) so that it can supply the second internal docking liquid bladder (7) through the supply soft pipe (6). During the expansion of the second internal docking liquid bladder (7), the outer contacting docking piece (9) is pushed outward. When the contacting docking piece (9) moves outward, the reserved traction rope (11) drives the sealed nested docking piece (12) to move synchronously along the end side of the liver and gallbladder drainage tube body (1).
2. The hepatobiliary drainage device for general surgery according to claim 1, characterized in that: The sealing self-positioning structure is provided with a first docking reserved airbag (13), and the first docking reserved airbag (13) is bonded to the inside of the end side of the liver and gallbladder drainage tube body (1), and the lower end of the first docking reserved airbag (13) is docked with the upper end of the sealing nested docking piece (12). An air supply hose (14) is inserted through the inner side of the first docking reserved air bag (13), and the air supply hose (14) is inserted through the inner side of the liver and gallbladder drainage tube body (1).
3. A hepatobiliary drainage device for general surgery according to claim 2, characterized in that: The inner wall of the hepatobiliary drainage tube body (1) is bonded with a second docking reserved air bag (15), and the second docking reserved air bag (15) is docked with the end of the air supply hose (14). The inner wall of the hepatobiliary drainage tube body (1) is bonded with an elastic docking layer (16), and the inner side of the elastic docking layer (16) is docked with the lower end of the second docking reserved air bag (15). The outer side of the elastic docking layer (16) is rotatably connected with a guide docking wheel (17).
4. A hepatobiliary drainage device for general surgery according to claim 3, characterized in that: During the inward movement of the sealed nested docking piece (12), pressure is simultaneously applied to the first docking reserved airbag (13) in contact, and the first docking reserved airbag (13) supplies air to the interior of the second docking reserved airbag (15) at the end through the air supply hose (14).
5. A hepatobiliary drainage device for general surgery according to claim 4, characterized in that: During the expansion of the second docking reserved airbag (15), the outer elastic docking layer (16) is pushed outward, so that the elastic docking layer (16) cooperates with the outer guide docking wheel (17) to synchronously guide and position the contacting built-in reserved plugging pipeline (18).