Percutaneous puncture closed three-cavity biliary tract drainage tube
By designing a percutaneously punctured closed three-chamber biliary drainage tube containing dredging assembly and piston assembly, the problem that the existing biliary drainage tube cannot clear the pipe is solved, the smooth flow of biliary drainage and the reduction of biliary infection are achieved, and the biliary tract is reduced. Risk of obstruction.
Patent Information
- Application Number
- CN202420888818.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The existing biliary drainage tubes cannot effectively clear the duct, resulting in complications such as poor biliary drainage, biliary infection and pain, increasing the risk of biliary obstruction.
A percutaneous puncture sealed three-chamber biliary drainage tube is designed, including a main drainage tube, a dredging component, a piston assembly and a drainage tube. Through the combination of spiral guide wire and pressing head, bile can be attracted under low negative pressure in a sterile environment, and the main drainage tube can be unblocked under airtight aseptic conditions to ensure smooth passage.
It effectively reduces the risk of bile drainage duct obstruction, ensures smooth bile drainage, reduces the occurrence of bile infection and pain, and improves the efficacy of PTCD surgery.
Smart Images
Figure CN222444933U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bile duct drainage tubes, in particular to a percutaneous puncture closed three-lumen bile duct drainage tube. Background Art
[0002] In the treatment of obstructive jaundice, biliary drainage is an important means of assisting the treatment of complex biliary obstruction. The common clinical percutaneous transhepatic biliary drainage (PTCD) has the advantages of safety, convenience and economy. During puncture, the puncture target needs to be selected. Generally, a straight bile duct branch is selected. The patient holds his breath and punctures under the guidance of color Doppler ultrasound. The bile is drawn to prove that the puncture needle tip is in the bile duct required for drainage. The needle core is pulled out and the guide wire is inserted. The puncture needle is withdrawn, and the dilator and outer sheath (drainage tube) are inserted through the guide wire. The guide wire and dilator are withdrawn, and the outer sheath (drainage tube) is retained. The catheter is inserted through the outer sheath (drainage tube) for various treatments.
[0003] However, most of the existing bile drainage tubes on the market have only one channel. Due to the viscosity of bile and the inability to flush retrogradely, the drainage tube is often blocked, which in turn causes complications such as poor bile drainage, secondary bile tract infection, and pain, thus affecting the efficacy of PTCD. This design structural defect increases the risk of bile duct obstruction again. Therefore, this design improves the defect of the existing drainage tube that cannot clear the duct, greatly reducing the risk of bile duct drainage tube obstruction. Utility Model Content
[0004] The technical problem to be solved by the utility model is that the existing drainage tube cannot dredge the pipeline, which easily increases the risk of obstruction of the patient's bile duct drainage tube.
[0005] The utility model proposes a percutaneous puncture closed three-lumen biliary drainage tube, which can, on the basis of discharging bile, attract bile under low negative pressure in a sterile condition to ensure the patency of the main drainage tube, and can dredge the main drainage tube in a closed and sterile environment to reduce the risk of biliary drainage tube obstruction in patients.
[0006] The technical solutions adopted are:
[0007] A percutaneous puncture closed three-lumen biliary drainage tube comprises a main drainage tube, one end of which extends into a patient's body for bile drainage, and the other end is connected with a dredging component for dredging the main drainage tube and supporting the main drainage tube at the same time, a piston component for sucking bile to determine whether the main drainage tube is currently in an unobstructed state, and a branch drainage tube connected to an external drainer for draining bile from the patient's body, the dredging component is arranged on one end face of the main drainage tube, and the piston component and the branch drainage tube are respectively arranged on the left and right sides of the main drainage tube.
[0008] The utility model discharges bile through the cooperation of the branch drainage tube and the main drainage tube, and can also judge whether the drainage in the main drainage tube is currently unobstructed through the piston component, and cooperate with the dredging component to dredge the main drainage tube to avoid obstruction of the main drainage tube, thereby reducing the risk of drainage tube obstruction.
[0009] According to a further preferred embodiment of the technical solution of the utility model, the unblocking component includes a spiral guide wire and a pressing head, one end of the spiral guide wire is fixed to the top of the inner wall of the pressing head, and the other end is arranged in the main drainage tube, so as to drive the internal spiral guide wire to move up and down by pressing the pressing head.
[0010] In a further embodiment of the technical solution of the utility model, the outer diameter of the portion of the spiral guide wire disposed in the main drainage tube is slightly smaller than the inner diameter of the main drainage tube, so that the spiral guide wire can be extended into the main drainage tube and stretched back and forth to clear the main drainage tube.
[0011] In a further preferred embodiment of the technical solution of the utility model, the piston assembly is a hollow needle, which is used to detect whether the drainage of the current main drainage tube is unobstructed through suction of the hollow needle.
[0012] In a further preferred embodiment of the technical solution of the utility model, a first flow-stop clamp is provided on one end of the main drainage tube close to the piston assembly to control the flow state of the main drainage tube.
[0013] In a further embodiment of the technical solution of the utility model, a second flow-stopping clamp is provided on the branch drainage tube, which is used to close the branch drainage tube when the piston assembly detects the on / off state of the current main drainage tube, thereby ensuring that the piston assembly can aspirate bile.
[0014] In a further preferred embodiment of the technical solution of the utility model, one end of the main drainage tube extending into the patient's body is a blunt tip, and a plurality of suction holes are provided on the bottom of the blunt tip and the side wall of the main drainage tube to prevent damage to the patient when the main drainage tube penetrates deep into the patient's body. At the same time, the plurality of suction ports facilitate drainage and reduce the risk of blockage.
[0015] As a further optimization of the technical solution of the utility model, a sterile bag is provided on the outside of the dredging assembly and the piston assembly to ensure that the piston assembly and the dredging assembly are in a sterile state when medical staff use the piston assembly and the dredging assembly.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. The utility model drives the spiral guide wire to move up and down in the main drainage tube by pressing the pressing head, thereby clearing the pipeline of the main drainage tube and reducing the risk of obstruction of the main drainage tube. At the same time, the spiral guide wire can support the main drainage tube.
[0018] 2. The utility model determines the current flow condition of the main drainage tube through the cooperation of the first stop clamp, the second stop clamp and the piston assembly, and can discharge the bile sucked out of the piston assembly to prevent the bile from flowing back into the patient's body and causing infection.
[0019] 3. The utility model is in a sterile environment, which can prevent patients from being infected by the external environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall structure of this embodiment;
[0021] Figure 2 Schematic diagram of the main drainage tube structure of this embodiment;
[0022] Figure 3 It is a partial half-section schematic diagram of the overall structure of this embodiment;
[0023] Figure 4 Schematic diagram of the spiral guide wire structure of this embodiment;
[0024] Figure 5 This is a half-section schematic diagram of the overall structure of this embodiment;
[0025] Explanation of the reference numerals: 1-main drainage tube, 2-unclogging assembly, 3-piston assembly, 4-branch drainage tube, 5-first flow-stop clamp, 6-second flow-stop clamp, 11-liquid suction hole, 12-liquid outlet of piston assembly, 21-spiral guide wire, 22-pressing head, 31-syringe, 32-piston, 33-piston handle. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following Figure 1-5 And embodiments, the utility model is further described in detail. Example 1
[0027] like Figure 1-5 As shown, a percutaneous puncture closed three-lumen biliary drainage tube of the present embodiment includes a main drainage tube 1, a clearing assembly 2, a piston assembly 3 and a branch drainage tube 4. The clearing assembly 2 is fixed at one end of the main drainage tube 1, and the piston assembly 3 and the branch drainage tube 4 are respectively connected to the main drainage tube 1. The side surface of one end of the main drainage tube 1 close to the clearing assembly 2 is respectively provided with a piston assembly liquid outlet 12 connected to the piston assembly 3 and the branch drainage tube 4.
[0028] like Figure 2 As shown, in this embodiment, the piston assembly liquid outlet 12 on the main drainage tube 1 is an outward protrusion, which is convenient for plugging the piston assembly 3 and the branch drainage tube 4.
[0029] like Figure 2As shown, the other end of the main drainage tube 1 is a blunt head, and a plurality of liquid suction holes 11 are provided on the blunt head and the side wall near the blunt head end of the main drainage tube 1 .
[0030] like Figure 3 , Figure 4 and Figure 5 As shown, in this embodiment, the unblocking component 2 includes a pressing head 22 and a spiral guide wire 21. The pressing head 22 is a telescopic bag that can automatically reset after being pressed. One end of the spiral guide wire 21 is fixed to the top of the inner wall of the telescopic bag by bonding, and the other end extends into the main drainage tube 1 and abuts against the blunt head at the front end of the main drainage tube 1.
[0031] like Figure 4 As shown, the spiral guide wire 21 is arranged in the main drainage tube 1 near the blunt head section and is spiral. The outer diameter of the spiral guide wire 21 here is slightly smaller than the inner diameter of the main drainage tube 1, which is convenient for the spiral guide wire 21 to extend into the main drainage tube 1. At the same time, the spiral guide wire near the blunt head section is divided into a section with a larger pitch and a section with a smaller pitch. The section with a larger pitch and the section with a smaller pitch are fixedly connected. The section with a smaller pitch is the frontmost section of the spiral guide wire 21. The end with a smaller pitch can avoid the risk of the spiral guide wire 21 passing through multiple suction holes 11. The section of the guide wire fixed inside the pressing head 22 is a flat spiral, and its outer diameter is larger than the inner diameter of the main drainage tube 1 to avoid the guide wire in the pressing head 22 from accidentally falling off and falling into the main drainage tube 1. The guide wire near the blunt head section and the section of the flat spiral guide wire fixed inside the pressing head 22 are connected by a straight guide wire, and the three sections of guide wire are integrally processed to form the spiral guide wire 21.
[0032] like Figure 1 and Figure 5 As shown, the piston assembly 3 is an empty needle, which includes a syringe 31, a piston 32 and a piston 32 handle 33. The piston 32 is fixedly connected to the piston 32 handle 33. The piston 32 is arranged in the syringe 31 and moves in the syringe 31 under the action of the piston 32 handle 33. The front end of the syringe 31 of the empty needle is plugged into the piston assembly liquid outlet 12 on the main drainage tube 1, so that the main drainage tube 1 is connected to the syringe 31, and bile is sucked through the main drainage tube 1 under external action.
[0033] One end of the branch drainage tube 4 is connected to an external drainage bag, so that the external drainage bag is connected to the main drainage tube 1 for draining bile.
[0034] In this embodiment, the piston assembly liquid outlet 12 and one end of the main drainage tube 1 connected to the pressing head 22 are respectively provided with protrusions for increasing friction, thereby preventing the branch drainage tube 4, the piston assembly 3 and the pressing head 22 from falling off.
[0035] The main drainage tube 1 and the branch drainage tube 4, the piston assembly liquid outlet 12, the protrusion on the main drainage tube 1 at the connection with the piston assembly 3 and the pressing head 22, the multiple liquid suction holes 11 on the main drainage tube 1 and the blunt head are integrally formed.
[0036] like Figure 1 As shown, a portion of the main drainage tube 1 close to the piston assembly 3 is sleeved with a first stop clamp 5, which is used to control the on / off state of the main drainage tube 1. When the piston assembly 3 needs to discharge the bile sucked in the syringe 31, the first stop clamp 5 can clamp the main drainage tube 1 to prevent the bile from flowing back into the patient's body from the main drainage tube 1, thereby reducing the risk of infection for the patient.
[0037] like Figure 1 As shown, the branch drainage tube 4 is also provided with a second flow-stop clamp 6, which is used to control the on-off state of the branch drainage tube 4. When the piston assembly 3 determines the flow state of the current main drainage tube 1, the second flow-stop clamp 6 can clamp the branch drainage tube 6 to prevent the branch drainage tube 4 from flowing, thereby making it difficult for the piston assembly 3 to draw bile, thereby affecting the judgment.
[0038] In this embodiment, a sterile bag is provided on the outside of the pressing head 22 of the unblocking component 2 and the outside of the piston component 3 to prevent external air from coming into contact with the patient through the pressing head 22 and the piston component 3 via the main drainage tube 1, thereby increasing the risk of infection for the patient. The sterile bag is fixed at the connection between the main drainage tube 1 and the branch drainage tube 4 by gluing, and the sterile bag does not affect the use of the unblocking component 2 and the piston component 3 by medical staff.
[0039] In this embodiment, the sterile bag is made of transparent PU material, which is convenient for the staff to intuitively observe the current status of the dredging component 2 and the piston component 3.
[0040] The specific method of using the percutaneous puncture closed three-lumen biliary drainage tube in this embodiment is: first puncture the patient, pull out the needle core and insert the puncture guide wire, withdraw the puncture needle, insert the dilator tube and the main drainage tube 1 through the guide wire, the puncture guide wire enters through the front end suction hole 11 of the plug of the main drainage tube 1, and exits the branch drainage tube 4, withdraws the dilator tube and the puncture guide wire, retains the main drainage tube 1, and connects the branch drainage tube 4 to the external drainage bag for drainage. At this time, the first stop clamp 5 and the second stop clamp 6 control the main drainage tube 1 and the branch drainage tube 4 to be in a smooth state.
[0041] If the drainage is not smooth, close the second stop-flow clamp 6 and control the branch drainage tube 4 to be in a blocked state. At this time, the main drainage tube 1 is in a smooth state. Press the pressing head 22, and the spiral guide wire 21 moves in the main drainage tube 1 on the left and right sides of the pressing head 22 to clear the main drainage tube 1. Then pull the piston handle 33 to aspirate the bile. If bile is aspirated out of the syringe 31, it proves that the main drainage tube 1 is currently in a smooth state. Close the first stop-flow clamp 5 and open the second stop-flow clamp 6. Push the piston handle 33 to discharge the bile in the syringe 31 into the drainage bag through the main drainage tube 1 and the branch drainage tube 4. After emptying, open the first stop-flow clamp 5 to continue drainage.
[0042] If bile is not sucked out of the syringe 31 , the pressing head 22 is continuously pressed to clear the main drainage tube 1 until bile is sucked out of the syringe 31 .
[0043] The above embodiments are only for illustrating the technical idea of the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A percutaneous closed three-lumen biliary drainage tube, characterized in that: The invention comprises a main drainage tube (1), one end of which extends into the patient's body for bile drainage, and the other end of which is connected to a dredging component (2) for dredging the main drainage tube (1) and supporting the main drainage tube (1), a piston component (3) for sucking bile so as to determine whether the main drainage tube (1) is currently in a dredging state, and a branch drainage tube (4) connected to an external drainage device for draining bile from the patient's body, the dredging component (2) being arranged on one end surface of the main drainage tube (1), and the piston component (3) and the branch drainage tube (4) being arranged on the left and right sides of the main drainage tube (1), respectively.
2. The percutaneous puncture closed three-lumen biliary drainage tube according to claim 1, characterized in that: The unclogging component (2) comprises a spiral guide wire (21) and a pressing head (22); one end of the spiral guide wire (21) is fixed to the top of the inner wall of the pressing head (22), and the other end is arranged in the main drainage tube (1).
3. The percutaneous closed three-lumen biliary drainage tube according to claim 2, characterized in that: The outer diameter of the portion of the spiral guide wire (21) disposed inside the main drainage tube (1) is slightly smaller than the inner diameter of the main drainage tube (1).
4. The percutaneous closed three-lumen biliary drainage tube according to claim 1, characterized in that: The piston assembly (3) is a hollow needle.
5. The percutaneous puncture closed three-lumen biliary drainage tube according to claim 1, characterized in that: A first flow-stop clamp (5) is provided on one end of the main drainage pipe (1) close to the piston assembly (3).
6. The percutaneous puncture closed three-lumen biliary drainage tube according to claim 1, characterized in that: A second flow-stopping clamp (6) is provided on the branch drainage tube (4).
7. The percutaneous closed three-lumen biliary drainage tube according to claim 1, characterized in that: The end of the main drainage tube (1) extending into the patient's body is a blunt tip, and a plurality of liquid suction holes (11) are provided on the bottom of the blunt tip and the side wall of the main drainage tube (1).
8. The percutaneous puncture closed three-lumen biliary drainage tube according to claim 1, characterized in that: The dredging component (2) and the piston component (3) are externally covered with a sterile bag.