External drainage device and method for liver and gall
By designing a liver-bladder external drainage device including guide rod, sliding device, drive motor and anti-reflow device, the problems of drainage tube blockage and liquid return are solved, and the effect of rapid unblocking and reducing the risk of infection is achieved.
Patent Information
- Application Number
- CN202510046814.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-03-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In extrahepatobiliary drainage operations, blockage of the drainage pipe often occurs, resulting in the accumulation of bile or other body fluids in the body, increasing the patient's discomfort and may have adverse effects on rehabilitation. In addition, liquid reflux may occur when the drainage device on the market removes the drainage tube, increasing the risk of infection of patients.
A liver-bladder external drainage device is designed, including a guide rod, a drainage tube, a sliding groove, a sliding device, a driving motor, a reverse flow preventing device and a tributary conduit. By moving the slider and driving the motor to rotate, a negative pressure is formed to clear the blockage; the anti-flow prevents liquid from flowing back.
The device can quickly clear the drainage tube blockage, reduce the operation time, avoid liquid return, reduce the risk of infection in patients, and improve timeliness and safety.
Smart Images
Figure CN119607284A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of hepatobiliary external drainage, and in particular to a hepatobiliary external drainage device and method. Background Art
[0002] Hepatobiliary diseases are common and frequent chronic diseases, including viral hepatitis, fatty liver, cholecystitis, cholelithiasis, etc. When performing surgery on the hepatobiliary and pancreatic regions, drainage devices are sometimes required. Drainage is a very critical step during surgery.
[0003] During the external hepatobiliary drainage operation, the drainage duct is often blocked. The blockage is caused by the accumulation of substances such as impurities or blood clots in the drainage duct. When the drainage duct is blocked, the drainage device cannot discharge the fluid in the body normally, causing bile or other body fluids to accumulate in the body, increasing the patient's discomfort and possibly having an adverse effect on the patient's recovery.
[0004] Secondly, after the drainage of the drainage device on the market is completed, there is a possibility that the liquid in the tube will flow back when the drainage tube is removed, which greatly increases the risk of infection for the patient.
[0005] In view of this, we propose a hepatobiliary external drainage device and method. Summary of the invention
[0006] The purpose of the present invention is to provide an external hepatobiliary drainage device and method to solve the problem that during the external hepatobiliary drainage operation proposed in the above background technology, the drainage duct is often blocked, resulting in the accumulation of bile or other body fluids in the body, increasing the patient's discomfort and possibly having an adverse effect on the patient's recovery. Secondly, after the drainage of the drainage device on the market is completed, when the drainage tube is removed, the liquid in the tube may reflux, resulting in a greatly increased risk of infection for the patient.
[0007] To achieve the above-mentioned purpose, on the one hand, the present invention provides a hepatobiliary external drainage device and method, including a guide rod, a coaxially connected drainage tube is provided on one side of the guide rod, a sliding groove is provided on the guide rod, a sliding device is provided on the sliding groove, a fixedly connected driving motor is provided on one side of the guide rod, an anti-backflow device is provided in the guide rod, a fixedly connected handle is provided on the guide rod and the driving motor, a fixedly connected branch conduit is provided on one side of the guide rod, a liquid storage bag is provided on the branch conduit, the inner wall of the guide rod is connected to the liquid storage bag through the two ends of the branch conduit, a fixedly connected infusion port is provided on the liquid storage bag, and a limiting device is provided on the infusion port.
[0008] As a preferred embodiment of the present invention, the sliding device includes a sliding block, a fixed rod and a sliding shaft, the sliding block is fixedly connected to one end of the fixed rod, one end of the fixed rod is fixedly connected to the sliding shaft, one end of the sliding shaft is provided with a fixedly connected rubber plug, and the rubber plug fits the inner wall of the drainage tube.
[0009] Preferably, the backflow prevention device comprises a baffle block and a limiting hole, and the baffle block is in an inverted triangle shape and fixedly connected to the inner wall of the guide rod.
[0010] Preferably, the limit device includes a limit cap, a limit clamp and a limit rod, the limit clamp is fitted and connected to the infusion port, a plurality of threaded slots are provided on the limit clamp, the limit cap is coaxially fixedly connected to the limit rod, an external thread is provided on the limit rod, and the limit rod passes through the plurality of threaded slots and is threadedly engaged.
[0011] Preferably, the guide rod is provided with an air guide pipe, and the air guide pipe is provided with a spiral cap.
[0012] Preferably, a negative pressure chamber is provided on the inner wall of the sliding shaft and the guide rod.
[0013] Preferably, the sliding shaft is hollow, and the inner wall of the sliding shaft is communicated with the limiting hole.
[0014] Preferably, the infusion port is sleeved on an opening at one end of the branch catheter.
[0015] On the other hand, the present invention also provides a method for using a hepatobiliary external drainage device and method, including any one of the above-mentioned hepatobiliary external drainage devices and methods, and the operation steps are as follows:
[0016] Step 1: When performing external drainage of the liver and gallbladder, if the drainage tube is blocked, the sliding block is moved. When the sliding block moves, the sliding shaft changes its position in the guide rod. At this time, the impurities blocked in the drainage tube will pass through the guide rod due to the negative pressure and enter the limit hole. Then, they are led out from the branch catheter on one side, and the blocked drainage tube is quickly unblocked. After unblocking, the sliding block can be moved to reset.
[0017] Step 2: If the above method cannot effectively solve the blockage problem, you can also turn on the drive motor and rotate the spiral cap to force the air guide tube to be closed, so that negative pressure is formed on the inner wall of the guide rod, and the pressure of the negative pressure is further increased, forcing the impurities blocked in the drainage tube to pass through the guide rod due to the negative pressure and enter the limiting hole, and then be transported.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] 1. In this hepatobiliary external drainage device and method, when performing hepatobiliary external drainage, if the drainage tube is blocked, the sliding block is moved, and the sliding block drives the sliding shaft to change its position in the guide rod when the sliding block moves. At this time, the impurities blocked in the drainage tube will pass through the guide rod due to the effect of negative pressure, enter the limiting hole, and then be led out from the branch catheter on one side, so that the blocked drainage tube can be quickly unblocked. After unblocking, the sliding block can be moved to reset it. Unblocking the blocked area in this way can reduce the operation time, eliminate the need to remove the drainage tube, avoid the risk of infection caused by secondary removal, and greatly improve timeliness and safety.
[0020] 2. In the hepatobiliary external drainage device and method, the anti-backflow device includes a baffle and a limiting hole. The baffle is in an inverted triangle shape and is fixedly connected to the inner wall of the guide rod. The baffle is in an inverted triangle shape and the limiting hole will be closed when the liquid refluxes. This can avoid the backflow of liquid in the tube when the drainage tube is taken out after the drainage is completed, and the risk of infection for patients is greatly reduced.
[0021] 3. In this hepatobiliary external drainage device and method, if the above-mentioned method cannot effectively solve the blockage problem, the driving motor can be turned on and the spiral cap can be rotated to force the airway to be closed, so that a negative pressure is formed on the inner wall of the guide rod, and the pressure of the negative pressure is further increased, forcing the impurities blocked in the drainage tube to pass through the guide rod due to the strong negative pressure and enter the limiting hole, and then be transported. This makes the device have multiple dredging methods and can operate simultaneously, which greatly improves the efficiency of dredging and reduces the risk of infection. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the structure of an external drainage device for liver and gallbladder according to the present invention;
[0023] Figure 2 A top view of the structure of an external hepatobiliary drainage device of the present invention;
[0024] Figure 3 It is a front cross-sectional view of the invention structure of a hepatobiliary external drainage device of the present invention;
[0025] Figure 4 A hepatobiliary external drainage device according to the present invention Figure 3 The enlarged schematic diagram of point A in the middle;
[0026] Figure 5 It is an isometric view of the invention structure of a hepatobiliary external drainage device of the present invention;
[0027] Figure 6 A hepatobiliary external drainage device according to the present invention Figure 5 A magnified schematic diagram of point B in the middle.
[0028] The meanings of the numbers in the figure are as follows: 1. drainage tube; 2. guide rod; 3. sliding block; 4. tributary catheter; 5. handle; 6. liquid storage bag; 7. driving motor; 8. spiral cap; 9. air guide tube; 10. limit cap; 11. limit clamp block; 12. limit rod; 13. infusion port; 14. rubber plug; 15. sliding groove; 16. flow blocking block; 17. limit hole; 18. fixing rod; 19. sliding shaft. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] Embodiment 1
[0031] See also Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an external drainage device for liver and gallbladder, including a guide rod 2, which is hollow inside, a coaxially connected drainage tube 1 is provided on one side of the guide rod 2, a sliding groove 15 is opened on the guide rod 2, and a sliding device is provided on the sliding groove 15, and the sliding device can adjust the air pressure change in the guide rod 2.
[0032] A fixedly connected driving motor 7 is provided on one side of the guide rod 2, and the driving motor 7 can provide driving force for the device. An anti-backflow device is provided in the guide rod 2, and the anti-backflow device can prevent the liquid from flowing back. A fixedly connected handle 5 is provided on the guide rod 2 and the driving motor 7, and the handle 5 is convenient for hand support. A fixedly connected branch conduit 4 is provided on one side of the guide rod 2, and the branch conduit 4 can transport liquid to a liquid storage bag 6. The liquid storage bag 6 is provided on the branch conduit 4. The inner wall of the guide rod 2 is connected to the liquid storage bag 6 through the two ends of the branch conduit 4. A fixedly connected infusion port 13 is provided on the liquid storage bag 6, and a limit device is provided on the infusion port 13. The limit device is used to strengthen the connection between the branch conduit 4 and the liquid storage bag 6.
[0033] Embodiment 2
[0034] The embodiment of the present invention provides a hepatobiliary external drainage device, such as Figure 3 and Figure 4 As shown, the sliding device includes a sliding block 3, a fixed rod 18 and a sliding shaft 19. The sliding block 3 is fixedly connected to one end of the fixed rod 18, and one end of the fixed rod 18 is fixedly connected to the sliding shaft 19. The sliding block 3 can move on the sliding groove 15. One end of the sliding shaft 19 is provided with a fixedly connected rubber plug 14, and the rubber plug 14 fits the inner wall of the drainage tube 1.
[0035] Specifically, when performing external drainage of the liver and gallbladder, if the drainage tube 1 is blocked, the sliding block 3 is moved. When the sliding block 3 moves, it drives the sliding shaft 19 to change its position in the guide rod 2. At this time, the impurities blocked in the drainage tube 1 will pass through the guide rod 2 due to the effect of negative pressure, enter the limiting hole 17, and then be led out from the branch catheter 4 on one side, so as to quickly clear the blocked drainage tube 1. After clearing, the sliding block 3 can be moved to reset it. By clearing the blockage in this way, the operation time can be reduced, and there is no need to remove the drainage tube 1, avoiding the risk of infection caused by secondary removal, which greatly improves timeliness and safety.
[0036] The anti-backflow device includes a baffle block 16 and a limiting hole 17. The baffle block 16 is in an inverted triangle shape and is fixedly connected to the inner wall of the guide rod 2. The baffle block 16 is arranged in an inverted triangle shape, and the limiting hole 17 will be closed when the liquid refluxes. This can avoid the backflow of liquid in the tube when the drainage tube is taken out after the drainage is completed, and the risk of infection for the patient is greatly reduced.
[0037] See also Figure 5 and Figure 6 As shown, the limiting device includes a limiting cap 10, a limiting clamping block 11 and a limiting rod 12. The limiting clamping block 11 is fitted and connected with the infusion port 13. The limiting clamping block 11 is provided with a plurality of threaded notches. The limiting cap 10 is coaxially fixedly connected with the limiting rod 12. The limiting rod 12 is provided with an external thread. The limiting rod 12 passes through a plurality of threaded notches and the threads are engaged. The infusion port 13 is sleeved on an opening at one end of the tributary catheter 4. The limiting rod 12 passes through a plurality of threaded notches. By rotating the limiting cap 10, the limiting clamping block 11 can be tightly fitted on the infusion port 13 to avoid leakage.
[0038] An air guide pipe 9 is provided on the guide rod 2, and a spiral cap 8 is provided on the air guide pipe 9. A negative pressure chamber is provided on the sliding shaft 19 and the inner wall of the guide rod 2. The sliding shaft 19 is hollow, and the inner wall of the sliding shaft 19 is connected to the limiting hole 17. The air guide pipe 9 can balance the air pressure inside and outside the pipe, making the dredging more smooth.
[0039] Specifically, if the above method cannot effectively solve the blockage problem, the drive motor 7 can be turned on and the spiral cap 8 can be rotated to force the airway 9 to be closed, so that a negative pressure is formed on the inner wall of the guide rod 2, and the pressure of the negative pressure is further increased, forcing the impurities blocked in the drainage tube 1 to pass through the guide rod 2 due to the strong negative pressure, and enter the limiting hole 17, and then be transported. In this way, the device has multiple dredging methods and can operate simultaneously, which greatly improves the efficiency of dredging and reduces the risk of infection.
[0040] Embodiment 3
[0041] An embodiment of the present invention provides an external drainage device for liver and gallbladder, including a guide rod 2, which is hollow inside. A coaxially connected drainage tube 1 is provided on one side of the guide rod 2. A sliding groove 15 is opened on the guide rod 2, and a sliding device is provided on the sliding groove 15. The sliding device can adjust the air pressure change in the guide rod 2.
[0042] A fixedly connected driving motor 7 is provided on one side of the guide rod 2, and the driving motor 7 can provide driving force for the device. An anti-backflow device is provided in the guide rod 2, and the anti-backflow device can prevent the liquid from flowing back. A fixedly connected handle 5 is provided on the guide rod 2 and the driving motor 7, and the handle 5 is convenient for hand support. A fixedly connected branch conduit 4 is provided on one side of the guide rod 2, and the branch conduit 4 can transport liquid to a liquid storage bag 6. The liquid storage bag 6 is provided on the branch conduit 4. The inner wall of the guide rod 2 is connected to the liquid storage bag 6 through the two ends of the branch conduit 4. A fixedly connected infusion port 13 is provided on the liquid storage bag 6, and a limit device is provided on the infusion port 13. The limit device is used to strengthen the connection between the branch conduit 4 and the liquid storage bag 6.
[0043] The sliding device includes a sliding block 3, a fixed rod 18 and a sliding shaft 19. The sliding block 3 is fixedly connected to one end of the fixed rod 18, and one end of the fixed rod 18 is fixedly connected to the sliding shaft 19. The sliding block 3 can move on the sliding groove 15. One end of the sliding shaft 19 is provided with a fixedly connected rubber plug 14, and the rubber plug 14 fits the inner wall of the drainage tube 1.
[0044] Specifically, when performing external drainage of the liver and gallbladder, if the drainage tube 1 is blocked, the sliding block 3 is moved. When the sliding block 3 moves, it drives the sliding shaft 19 to change its position in the guide rod 2. At this time, the impurities blocked in the drainage tube 1 will pass through the guide rod 2 due to the effect of negative pressure, enter the limiting hole 17, and then be led out from the branch catheter 4 on one side, so as to quickly clear the blocked drainage tube 1. After clearing, the sliding block 3 can be moved to reset it. By clearing the blockage in this way, the operation time can be reduced, and there is no need to remove the drainage tube 1, avoiding the risk of infection caused by secondary removal, which greatly improves timeliness and safety.
[0045] The anti-backflow device includes a baffle block 16 and a limiting hole 17. The baffle block 16 is in an inverted triangle shape and is fixedly connected to the inner wall of the guide rod 2. The baffle block 16 is arranged in an inverted triangle shape, and the limiting hole 17 will be closed when the liquid refluxes. This can avoid the backflow of liquid in the tube when the drainage tube is taken out after the drainage is completed, and the risk of infection for the patient is greatly reduced.
[0046] See also Figure 5 and Figure 6As shown, the limiting device includes a limiting cap 10, a limiting clamping block 11 and a limiting rod 12. The limiting clamping block 11 is fitted and connected with the infusion port 13. The limiting clamping block 11 is provided with a plurality of threaded notches. The limiting cap 10 is coaxially fixedly connected with the limiting rod 12. The limiting rod 12 is provided with an external thread. The limiting rod 12 passes through a plurality of threaded notches and the threads are engaged. The infusion port 13 is sleeved on an opening at one end of the tributary catheter 4. The limiting rod 12 passes through a plurality of threaded notches. By rotating the limiting cap 10, the limiting clamping block 11 can be tightly fitted on the infusion port 13 to avoid leakage.
[0047] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0048] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.
[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.
[0052] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.
[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A hepatobiliary external drainage device, comprising a guide rod (2), characterized in that: A coaxially connected drainage tube (1) is provided on one side of the guide rod (2); a sliding groove (15) is provided on the guide rod (2); a sliding device is provided on the sliding groove (15); a fixedly connected driving motor (7) is provided on one side of the guide rod (2); an anti-backflow device is provided inside the guide rod (2); a fixedly connected handle (5) is provided on both the guide rod (2) and the driving motor (7); a fixedly connected branch conduit (4) is provided on one side of the guide rod (2); a liquid storage bag (6) is provided on the branch conduit (4); the inner wall of the guide rod (2) and the liquid storage bag (6) are connected and penetrated through both ends of the branch conduit (4); a fixedly connected infusion port (13) is provided on the liquid storage bag (6); a limit device is provided on the infusion port (13).
2. The hepatobiliary external drainage device according to claim 1, characterized in that: The sliding device comprises a sliding block (3), a fixed rod (18) and a sliding shaft (19); the sliding block (3) is fixedly connected to one end of the fixed rod (18); one end of the fixed rod (18) is fixedly connected to the sliding shaft (19); one end of the sliding shaft (19) is provided with a fixedly connected rubber plug (14); the rubber plug (14) fits the inner wall of the drainage tube (1).
3. The hepatobiliary external drainage device according to claim 2, characterized in that: The backflow prevention device comprises a flow block (16) and a limiting hole (17); the flow block (16) is in an inverted triangle shape and is fixedly connected to the inner wall of the guide rod (2).
4. The hepatobiliary external drainage device according to claim 3, characterized in that: The limiting device comprises a limiting cap (10), a limiting clamping block (11) and a limiting rod (12); the limiting clamping block (11) is closely connected to the infusion port (13); a plurality of threaded notches are provided on the limiting clamping block (11); the limiting cap (10) and the limiting rod (12) are coaxially fixedly connected; an external thread is provided on the limiting rod (12); the limiting rod (12) passes through the plurality of threaded notches and is threadedly engaged.
5. The hepatobiliary external drainage device according to claim 4, characterized in that: The guide rod (2) is provided with an air guide pipe (9) for communication therewith, and the air guide pipe (9) is provided with a spiral cap (8).
6. The hepatobiliary external drainage device according to claim 5, characterized in that: Negative pressure chambers are provided on the inner walls of the sliding shaft (19) and the guide rod (2).
7. The hepatobiliary external drainage device according to claim 6, characterized in that: The sliding shaft (19) is hollow, and the inner wall of the sliding shaft (19) is in communication with the limiting hole (17).
8. The hepatobiliary external drainage device according to claim 7, characterized in that: The infusion port (13) is sleeved on an opening at one end of the branch conduit (4).
9. A method for using a hepatobiliary external drainage device, based on the hepatobiliary external drainage device according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: Step 1: When performing external drainage of the liver and gallbladder, if the drainage tube (1) is blocked, the sliding block (3) is moved. When the sliding block (3) moves, it drives the sliding shaft (19) to change its position in the guide rod (2). At this time, the impurities blocked in the drainage tube (1) will pass through the guide rod (2) due to the negative pressure, enter the limiting hole (17), and then be led out from the branch conduit (4) on one side, so that the blocked drainage tube (1) is quickly unblocked. After unblocking, the sliding block (3) can be moved to reset. Step 2: If the above method cannot effectively solve the blockage problem, the driving motor (7) can be turned on to rotate the spiral cap (8) to force the air guide tube (9) to be closed, so that negative pressure is formed on the inner wall of the guide rod (2). The pressure of the negative pressure is further increased, and the impurities blocked in the drainage tube (1) are forced to pass through the guide rod (2) due to the strong negative pressure and enter the limiting hole (17), and then they can be transported.