Washable nasobiliary duct
By designing a nasal bile duct with a structure including a flushing joint, a drainage joint and a fixing sleeve, the existing nasal bile ducts are solved, and the effects of simplifying operation, improving efficiency and enhancing stability are achieved.
Patent Information
- Application Number
- CN202421854624.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The existing nasal bile ducts are complicated to operate during rinsing and are prone to infection, and have poor fixation effects, which poses a risk of shedding.
A nasal bile duct including the main body of the nasal bile duct, an upward and lower axial flushing joint, a left and right axial drainage joint, a fixing sleeve, a pressing block, a block, a moving disk and a fluid leakage hole are designed. The connection between the end cap and the flushing joint is controlled to control the on-off between the drainage joint and the flushing joint, so as to achieve the operation without the need to pull and insert the nasal bile duct back and forth.
The operation steps are simplified, the work efficiency is improved, the risk of infection is avoided, and the drainage bag and drainage joint are firmly fixed together, increasing the stability of drainage.
Smart Images
Figure CN222968937U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nasobiliary tubes, and particularly relates to a nasobiliary tube that can be flushed. Background Art
[0002] Endoscopic nasobiliary drainage is an effective treatment method for biliary and pancreatic diseases such as obstructive jaundice and acute suppurative cholangitis. This method uses an endoscope, which can change blind operation into direct vision operation. The situation of the operation area can be seen through a TV screen. It has the advantages of no bleeding, accurate cavity separation, and no damage to surrounding tissues. It can fully drain bile, and can also flush the bile duct and perform cholangiography repeatedly.
[0003] However, due to the relatively thin diameter of the nasobiliary tube and the relatively large diameter of the connector on the drainage bag, the nasobiliary tube does not match the connector on the drainage bag. Therefore, usually during drainage, the nasobiliary tube is directly inserted into the drainage bag, and then the nasobiliary tube is fixed with tape at the connector of the drainage bag. The fixing effect is poor and there is a risk of falling off. And some patients need to flush the nasobiliary tube. At this time, tape is needed. After the nasobiliary tube is pulled out of the drainage bag, it is then flushed. And one end of the nasobiliary tube located in the drainage bag is extremely easy to be immersed in the drainage fluid. At this time, pulling it out for flushing is extremely easy to cause infection, and the operations of pulling out and inserting back and sticking the tape are relatively cumbersome, and the workload of medical staff is relatively large. Content of the Utility Model
[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a nasobiliary tube that can be flushed, effectively solving the problems of cumbersome operation and easy infection when flushing the existing nasobiliary tube.
[0005] The technical solution it adopts is that the utility model includes a nasobiliary tube main body. A flushing connector with an up-down axis is fixed at the lower end of the nasobiliary tube main body. A drainage connector with a left-right axis is fixed at the right end of the flushing connector. A fixing sleeve with a concave axial cross-section is coaxially fixed outside the drainage connector. A plurality of pressing blocks that can move inside and outside are arranged on the fixing sleeve and are evenly distributed along its circumferential direction. A retaining ring located below the drainage connector is coaxially fixed inside the flushing connector. A moving disk that can move up and down and is located below the retaining ring is coaxially arranged inside the flushing connector. A plurality of liquid leakage holes evenly distributed along its circumferential direction are opened on the moving disk. The retaining ring can block the liquid leakage holes. A baffle plate that is semi-circular and annular and can block the left-end opening of the drainage connector is coaxially fixed on the moving disk. The baffle plate penetrates through the retaining ring and is slidably connected with the retaining ring. A through hole that penetrates left and right and can communicate with the drainage connector is opened on the baffle plate.
[0006] The beneficial effects of the present utility model are as follows: By controlling the connection between the end cover and the flushing joint, the on-off of the drainage joint and the flushing joint is controlled, simplifying the operation steps, improving work efficiency, and eliminating the need to repeatedly insert and remove the nasal bile duct, preventing the occurrence of infections, being cleaner and more hygienic, and firmly fixing the drainage bag to the drainage joint, increasing the stability of drainage. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 is an axonometric view of the present utility model.
[0008] Figure 2 is a full-section left axonometric view of the present utility model.
[0009] Figure 3 is a full-section front axonometric view of the present utility model.
[0010] Figure 4 is a full-section top axonometric view of the present utility model.
[0011] Figure 5 is a full-section bottom axonometric view of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0012] The following further details the specific embodiments of the present utility model with reference to the accompanying drawings.
[0013] It is given by Figures 1 to 5 and includes a nasal bile duct main body 1. A flushing joint 2 in the up-and-down axial direction is fixed to the lower end of the nasal bile duct main body 1. A drainage joint 3 in the left-and-right axial direction is fixed to the right end of the flushing joint 2. A fixing sleeve 4 with an axially concave cross-section is coaxially fixed to the outside of the drainage joint 3. A plurality of pressing blocks 5 that can move inward and outward are provided on the fixing sleeve 4 and are evenly distributed along its circumferential direction. A retaining ring 6 located below the drainage joint 3 is coaxially fixed inside the flushing joint 2. A moving disk 7 that can move up and down and is located below the retaining ring 6 is coaxially provided inside the flushing joint 2. A plurality of liquid leakage holes 8 evenly distributed along its circumferential direction are formed in the moving disk 7. The retaining ring 6 can block the liquid leakage holes 8. A baffle 9 that is semi-circular and annular and can block the left end opening of the drainage joint 3 is coaxially fixed to the moving disk 7. The baffle 9 penetrates through the retaining ring 6 and is slidably connected to the retaining ring 6. A through hole that penetrates left and right and can communicate with the drainage joint 3 is formed in the baffle 9.
[0014] In order to enable the pressing block 5 to move inward and outward, the inner and outer end faces of the pressing block 5 are inclined surfaces that are inclined relative to each other. A knob 10 that is annular and located to the right of the pressing block 5 is coaxially threadedly connected to the fixing sleeve 4. A top ring 11 that can contact the inclined surface on the outside of the pressing block 5 is coaxially fixed to the left end of the knob 10.
[0015] In order to enable the movable disk 7 to move up and down, a fixed disk 12 located above the retaining ring 6 is fixed inside the flushing connector 2. A plurality of flow holes 13 evenly distributed along the circumferential direction thereof are formed in the fixed disk 12. The lower end of the fixed disk 12 is connected to the movable disk 7 through a compression spring. A ejector pin 14 located below the movable disk 7 and capable of contacting the movable disk 7 is detachably connected inside the flushing connector 2.
[0016] In order to detachably connect the ejector pin 14 to the flushing connector 2, an end cap 15 is threadedly connected to the lower end of the flushing connector 2, and the end cap 15 is coaxially and fixedly connected to the ejector pin 14.
[0017] In order to increase the tightness and prevent liquid leakage, sealing rings 16 are coaxially and fixedly arranged on the inner side of the lower end of the flushing connector 2 and the outer side of the right end of the drainage connector 3 respectively.
[0018] In order to prevent the externally connected flushing tube from being inserted too deep into the flushing connector 2, thus blocking the liquid leakage hole 8, a fixed ring 17 located between the sealing ring 16 and the movable disk 7 is coaxially fixed inside the flushing connector 2.
[0019] When the utility model is in use, in the initial state, the end cap 15 is connected to the flushing connector 2. The upper end of the ejector pin 14 abuts against the movable disk 7, making the movable disk 7 contact with the retaining ring 6. The retaining ring 6 blocks the liquid leakage hole 8. The compression spring is in a state of being compressed under force. The through hole and the drainage connector 3 are opposite to each other left and right and communicate with each other.
[0020] After the nasal bile duct main body 1 is normally inserted into the patient's body, the connector of the drainage bag is located between the drainage connector 3 and the fixed sleeve 4 and inserted on the drainage connector 3. The sealing ring 16 on the drainage connector 3 is located inside the connector on the drainage bag. The connector on the drainage bag contacts the inclined surface inside the pressing block 5, causing the pressing block 5 to move outward. When the connector on the drainage bag contacts the left side wall of the fixed sleeve 4, stop inserting the connector of the drainage bag. At this time, the inner surface of the pressing block 5 can contact the outer surface of the connector on the drainage bag. Rotate the knob 10. The knob 10 moves leftward under the action of the thread. The top ring 11 moves leftward synchronously and contacts the inclined surface outside the pressing block 5. The pressing block 5 moves inward under the extrusion of its inclined surface and the top ring 11, squeezing the connector on the drainage bag. When the pressing block 5 tightly presses the connector on the drainage bag, stop rotating the knob 10. Due to the self-locking property of the thread, the position of the knob 10 will not be displaced due to the pushing of the top ring 11. At this time, the connector of the drainage bag is fixed on the drainage connector 3, and the nasal bile duct main body 1 is communicated with the drainage bag, and normal drainage can be carried out.
[0021] When the nasobiliary duct needs to be flushed for the patient, keep the end cap 15 facing upward and higher than the patient to prevent the drainage fluid from leaking out from the end cap 15. Unscrew the end cap 15, and the ejector pin 14 rotates and moves outward with the end cap 15. The moving disk 7 moves away from the retaining ring 6 under the action of the compression spring, and the liquid leakage hole 8 is no longer blocked. The baffle 9 moves with the moving disk 7 and makes the through hole gradually approach the retaining ring 6. When the end cap 15 is removed from the flushing joint 2, the ejector pin 14 moves out of the flushing joint 2 with the end cap 15. The moving disk 7 moves to a position close to the fixing ring 17 under the action of the compression spring but there is a certain distance between them. The baffle 9 blocks the left end opening of the drainage joint 3, and the drainage joint 3 is no longer communicated with the flushing joint 2. Insert the flushing tube or the syringe nipple into the flushing joint 2, and the outside of the flushing tube or the syringe nipple contacts the sealing ring 16 inside the flushing joint 2. When the flushing tube or the syringe nipple contacts the fixing ring 17, stop moving the flushing tube or the syringe nipple. At this time, the flushing tube or the syringe nipple is connected to the flushing joint 2, and flushing can be carried out. During flushing, the liquid flows into the space between the moving disk 7 and the fixing ring 17 through the opening in the middle of the fixing ring 17, then flows into the space between the retaining ring 6 and the moving disk 7 through the liquid leakage hole 8, then flows to the space between the retaining ring 6 and the fixing disk 12 through the opening in the middle of the retaining ring 6, and then flows into the nasobiliary duct main body 1 through the circulation hole 13 to achieve the flushing operation;
[0022] When drainage needs to be resumed after the flushing is completed, pull out the flushing tube or the syringe nipple, insert the ejector pin 14 into the fixing ring 17 and contact the moving disk 7 to connect the end cap 15 to the flushing joint 2 again. The moving disk 7 moves close to and contacts the retaining ring 6 under the push of the ejector pin 14, the liquid leakage hole 8 is blocked again, and the through hole is communicated with the left end of the drainage joint 3 again, and drainage starts again.
[0023] The utility model has a simple structure, convenient operation, novel concept and strong practicability. Through the settings of the fixing sleeve, the pressing block, the knob, the top ring and the sealing ring, the drainage bag is firmly fixed on the drainage joint to prevent the drainage bag from detaching from the drainage joint and realize stable drainage operation. Through the settings of the baffle, the moving disk, the fixing disk, the retaining ring, the ejector pin, the end cap, the liquid leakage hole and the circulation hole, the on-off of the drainage joint is controlled by whether the end cap is connected or not. When the end cap is connected, normal drainage can be carried out. After removing the end cap, the drainage stops and the flushing operation can start. There is no need to draw out the nasobiliary duct from the drainage bag, which is cleaner and more hygienic, preventing the occurrence of infection, and simplifies the operation steps, improving the work efficiency of medical staff.
Claims
1. A nasobiliary flushable device, comprising a nasobiliary main body (1), characterized in that: A flushing joint (2) in an up-and-down axial direction is fixed at the lower end of the nasobiliary duct body (1); a drainage joint (3) in a left-and-right axial direction is fixed at the right end of the flushing joint (2); a fixing sleeve (4) having a concave axial cross section is coaxially fixed outside the drainage joint (3); a plurality of pressing blocks (5) are evenly distributed along the circumferential direction thereof and can move inward and outward; a retaining ring (6) located below the drainage joint (3) is coaxially fixed inside the flushing joint (2); and a positioning ring (6) is coaxially provided inside the flushing joint (2). A movable plate (7) is disposed below the retaining ring (6) and is movable up and down. The movable plate (7) is provided with a plurality of leakage holes (8) evenly distributed along its circumferential direction. The retaining ring (6) can cover the leakage holes (8). A semicircular baffle plate (9) is coaxially fixed to the movable plate (7) and is capable of covering the left end opening of the drainage joint (3). The baffle plate (9) penetrates the retaining ring (6) and is slidably connected to the retaining ring (6). A through hole is provided on the baffle plate (9) and is connected to the drainage joint (3).
2. The flushable nasobiliary duct according to claim 1, characterized in that: The inner and outer end surfaces of the pressing block (5) are inclined surfaces that are relatively inclined. The fixing sleeve (4) is coaxially threadedly connected with a ring-shaped knob (10) located on the right side of the pressing block (5). The left end of the knob (10) is coaxially fixed with a top ring (11) that can contact the inclined surface on the outside of the pressing block (5).
3. The flushable nasobiliary duct according to claim 1, characterized in that: A fixed disk (12) located above the retaining ring (6) is fixed in the flushing joint (2), and a plurality of flow holes (13) are formed on the fixed disk (12) and are evenly distributed along its circumferential direction. The lower end of the fixed disk (12) is connected to the movable disk (7) via a compression spring. A top column (14) located below the movable disk (7) and capable of contacting the movable disk (7) is detachably connected in the flushing joint (2).
4. The flushable nasobiliary duct according to claim 1, characterized in that: The lower end of the flushing joint (2) is threadedly connected to an end cover (15), and the end cover (15) is coaxially fixedly connected to the top column (14).
5. The flushable nasobiliary duct according to claim 1, characterized in that: A sealing ring (16) is coaxially fixed on the inner side of the lower end of the flushing joint (2) and the outer side of the right end of the drainage joint (3).
6. The flushable nasobiliary duct according to claim 1, characterized in that: A fixing ring (17) is coaxially fixed inside the flushing joint (2) and is located between the sealing ring (16) and the movable disk (7).