Nasobiliary duct connecting device
By designing a nasal bile duct connection device including a docking assembly and a sealing assembly, the problem of insufficient sealing and infection reduction after ERCP surgery is solved, and convenient sealing and infection reduction effects are achieved.
Patent Information
- Application Number
- CN202420502909.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-15
AI Technical Summary
There are more and more patients with nasal and bile duct indwelling after ERCP. Patients need to observe the drainage volume after the operation, resulting in the drainage device being closed to reduce the occurrence of infection. However, the docking limit between the drainage tube and the closed plug is not matched, which is prone to the problem of inability to seal.
A nasal and bile duct connection device is designed, including a drainage tube, a syringe, a tee tube and a regulating device. The adjustment device consists of a butt assembly and a sealing assembly. The butt assembly includes a connecting pipe, a fixing frame, an extrusion frame and a butt frame. The spring-driven clamping limit structure realizes the sealing of the drainage pipe; the sealing assembly enhances the sealing ability through a connection groove, a connection block, a sealing ring and a inlay groove.
Through the design of the nasal and bile duct connection device, convenient sealing of the drainage tube is achieved, ensuring that the drainage device is in a closed state and effectively reducing the occurrence of infection.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nasobiliary ducts, in particular to a nasobiliary duct connecting device. Background Art
[0002] The nasobiliary connection device is usually composed of a syringe, a drainage tube, a closure plug, etc., and endoscopic nasobiliary drainage is an endoscopic treatment method that uses a duodenoscope to place the nasobiliary duct into the appropriate part of the bile duct and finally lead it out from one side of the patient's nasal cavity. It is more common in daily life to drain the bile above the blocked part or the lesion part of the bile duct to the outside of the body.
[0003] Prior art, such as the utility model with announcement number CN218552780U, discloses a connection device for the nasobiliary duct after ERCP surgery, which includes a nasobiliary duct and a drainage bag tube, a nut joint fixedly installed at the right end of the nasobiliary duct, a bolt joint threadedly connected to the right end of the nut joint, a connecting pipe fixedly installed on the right side of the bolt joint, and a three-way valve fixedly installed on the outside of the right end of the connecting pipe. The utility model is provided with a nut joint, a bolt joint and a three-way valve, etc. The nasobiliary duct is connected to the connecting pipe through the nut joint and the bolt joint, and the operation is simple and detachable. The connecting pipe is connected to the drainage bag tube through a silicone catheter, which can ensure good sealing. The three-way valve can prevent the drainage bag tube from being blocked during flushing, and the three-way valve can be closed when the drainage bag is replaced to prevent bile from continuing to flow out, thereby avoiding contamination of the patient's clothing or bed sheets.
[0004] The inventor has found in daily life that more and more patients have indwelling nasobiliary ducts after ERCP surgery, and the drainage volume of patients needs to be observed after surgery. Therefore, keeping the drainage device in a closed state can reduce the occurrence of infection. However, the docking limit between the conventional drainage tube and the closure plug does not match, which easily leads to the problem of failure to seal the drainage tube. Utility Model Content
[0005] The purpose of the utility model is to solve the problem in the prior art that more and more patients have indwelling nasobiliary ducts after ERCP surgery, and the drainage volume of patients needs to be observed after surgery, so that the drainage device is in a closed state to reduce the occurrence of infection. However, the docking limit between the conventional drainage tube and the closure plug does not match, which easily leads to the disadvantage that the drainage tube cannot be sealed.
[0006] In order to solve the above technical problems, the utility model provides a nasobiliary duct connecting device, including: a drainage tube and a closure plug, one end of the drainage tube is fixedly connected to a syringe, the end of the syringe away from the drainage tube is installed with a three-way tube, the end of the three-way tube close to the closure plug is provided with an adjusting device, the adjusting device includes a docking assembly and a sealing assembly, the docking assembly includes a connecting tube, one end of the connecting tube is fixedly connected to the three-way tube, the inner wall of the connecting tube is plugged into the arc surface of the closure plug, the arc surface of the connecting tube is fixedly connected to a fixing frame, the two ends of the fixing frame are respectively slidably connected with an extrusion frame and a docking frame, the arc surface of the closure plug is fixedly connected with a fixing tube at a position corresponding to the extrusion frame and the docking frame, the arc surface of the fixing tube is clamped with the inner walls of the extrusion frame and the docking frame, the arc surfaces of the two ends of the fixing frame are both covered with springs, one end of the spring is fixedly connected to the fixing frame, and the other end of the spring is respectively fixedly connected to the docking frame and the extrusion frame.
[0007] The effect achieved by the above components is: more and more patients have indwelling nasobiliary ducts after ERCP surgery, and the drainage volume needs to be observed after the surgery. Therefore, keeping the drainage device in a closed state can reduce the occurrence of infection. However, the usual drainage tube and the closure plug do not match each other, and it is easy for the drainage tube to be unable to be sealed. At this time, in order to facilitate the closure of one end of the drainage tube, the drainage tube is first fixed to the syringe, and the color, properties and flow of the bile can be observed. Then, one end of the syringe is docked with the three-way tube. When the tube is blocked after lithotomy, it can be flushed at the three-way tube, and then the adjustment device is used to fix it with the closure plug. First, the extrusion frame and the docking frame are slid apart along the surface of the fixing frame, and then the arc surface of the closure plug is inserted into the inner wall of the connecting tube. After that, the extrusion frame and the docking frame are subjected to the extrusion force of the spring, so that the extrusion frame and the docking frame are clamped and limited to the fixed tube on the surface of the closure plug, thereby effectively and conveniently performing a closed operation on the entire drainage pipeline.
[0008] Preferably, a positioning rod is fixedly connected to the arc surface of one end of the closing plug close to the connecting tube, and a positioning ring is slidably connected to the arc surface of the positioning rod. The inner wall of the positioning ring slides through the arc surface of the closing plug, and a groove is provided on the surface of the extrusion frame and the docking frame at a position corresponding to the positioning ring, and the inner wall of the groove is snap-fitted to the surface of the positioning ring.
[0009] The effect achieved by the above components is: in order to prevent the connection frame and the docking frame from being separated during use, the positioning ring and the slots provided on the surfaces of the connection frame and the docking frame are used for clamping and limiting fixation.
[0010] Preferably, a plurality of protrusions are fixedly connected to the arc surface of the fixing tube, the plurality of protrusions are evenly distributed on the surface of the fixing tube, and the plurality of protrusions are all silicone blocks.
[0011] The effect achieved by the above components is: the silicone protrusions are elastic, so that the connection frame and the docking frame are abutted, and when the positioning ring is clamped and fixed, the silicone protrusions can assist in mutual extrusion and limiting.
[0012] Preferably, the extrusion frame and the docking frame are both hard alloy frames, and the cross-sectional dimensions of the extrusion frame and the docking frame are compatible with the cross-sectional dimensions of the closing plug and the connecting pipe.
[0013] The effects achieved by the above components are: the extrusion frame and the docking frame made of hard alloy can be operated and used for a long time, avoiding deformation and damage in a short time.
[0014] Preferably, the connecting tube is a medical polyurethane tube, and the inner wall size of the connecting tube is adapted to the cross-sectional size of the closure plug.
[0015] The effects achieved by the above components are: the connecting tube made of polyurethane material can be operated and used for a long time, and can effectively fit and dock with the closing plug.
[0016] Preferably, the sealing assembly includes a connecting groove, which is provided on the inner wall of the connecting pipe, and a connecting block is fixedly connected to the arc surface of the closing plug at a position corresponding to the connecting groove, and the surface of the connecting block is rotatably connected to the inner wall of the connecting groove, and a fixing groove is provided on the inner wall of the connecting pipe at a position corresponding to the connecting block, and the cross-sectional size of the fixing groove is matched with the cross-sectional size of the connecting block, and a sealing ring is sleeved on the arc surface of one end of the closing plug close to the connecting block, and an inlay groove is provided on the inner wall of the connecting pipe at a position corresponding to the sealing ring, and the inner wall of the inlay groove is interference connected with the sealing ring.
[0017] The effect achieved by the above-mentioned components is: after one end of the entire closing plug is plugged into the connecting tube, in order to effectively increase the sealing between the connecting tube and the closing plug, the connecting block at one end of the closing plug is first rotated along the connecting groove in the connecting tube, and when the connecting block moves to the position of the fixed groove, it is plugged and moved again, and then the sealing ring on the surface of the closing plug is docked and fixed with the inlay groove opened in the connecting tube, thereby effectively and better limiting and fixing the connecting tube and the closing plug.
[0018] Preferably, a limiting groove is provided on the arc surface of the closing plug at a position corresponding to the sealing ring, and the inner wall surface of the limiting groove is engaged with the sealing ring.
[0019] The effect achieved by the above components is: in order to prevent the position of the sealing ring from being offset, the sealing ring is effectively clamped and fixed to limit the position.
[0020] Preferably, the inner wall corners of the connecting groove and the fixing groove are both arc-shaped.
[0021] The effect achieved by the above components is that in the process of limiting the connection block at one end of the closing plug with the connection groove and the fixing groove, the arc-shaped inner wall can avoid jamming with the connection block.
[0022] Compared with the related art, the nasobiliary duct connection device provided by the utility model has the following beneficial effects:
[0023] The utility model provides a nasobiliary duct connecting device. As more and more patients have indwelling nasobiliary ducts after ERCP surgery, the drainage volume needs to be observed after the surgery, so that the drainage device is in a closed state to reduce the occurrence of infection. However, the conventional drainage tube and the closure plug do not match each other, and it is easy for the drainage tube to be unable to be sealed. At this time, in order to facilitate the closure of one end of the drainage tube, the drainage tube is first fixed to the syringe, and the color, property and flow of bile can be observed. Then, one end of the syringe is docked with the three-way pipe. When the tube is blocked after stone removal, it can be flushed at the three-way pipe, and then the adjusting device is used to fix it with the closure plug. First, the extrusion frame and the docking frame are slid apart along the surface of the fixing frame, and then the arc surface of the closure plug is inserted into the inner wall of the connecting tube. Then, the extrusion frame and the docking frame are connected. The docking frame is subjected to the squeezing force of the spring, so that the squeezing frame and the docking frame can clamp and limit the fixed tube on the surface of the closure plug, thereby effectively and conveniently closing the entire drainage pipeline. After one end of the entire closure plug is plugged into the connecting tube, in order to effectively increase the sealing between the connecting tube and the closure plug, the connecting block at one end of the closure plug is first rotated along the connecting groove in the connecting tube. When the connecting block moves to the position of the fixed groove, it is plugged and moved again. After that, the sealing ring on the surface of the closure plug is docked and fixed with the inlay groove opened in the connecting tube, thereby effectively and better limiting and fixing the connecting tube and the closure plug. By operating the adjusting device, the entire drainage device is conveniently sealed, so that the drainage device is in a closed state, effectively reducing the occurrence of infection. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic diagram of the structure of a nasobiliary duct connection device provided by the utility model;
[0025] Figure 2 for Figure 1 The structural schematic diagram of the regulating device shown;
[0026] Figure 3 for Figure 2 A schematic diagram of the structure of the docking assembly shown;
[0027] Figure 4 for Figure 1 A schematic structural diagram of the sealing assembly shown;
[0028] Figure 5 for Figure 1 A schematic cross-sectional structure diagram of the regulating device is shown.
[0029] Numbers in the figure: 1. drainage tube; 2. syringe; 3. three-way tube; 4. adjusting device; 41. docking assembly; 411. connecting tube; 412. fixing frame; 413. extrusion frame; 414. docking frame; 415. spring; 416. fixing tube; 417. positioning rod; 418. positioning ring; 419. protrusion; 42. sealing assembly; 421. connecting groove; 422. connecting block; 423. limiting groove; 424. sealing ring; 425. inlay groove; 426. fixing groove; 5. closing plug. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0031] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.
[0032] See also Figures 1 to 5 A nasobiliary duct connection device provided by an embodiment of the utility model includes: a drainage tube 1 and a closure plug 5. One end of the drainage tube 1 is fixedly connected to a syringe 2. A three-way tube 3 is installed at the end of the syringe 2 away from the drainage tube 1. An adjustment device 4 is provided at the end of the three-way tube 3 close to the closure plug 5.
[0033] In the embodiments of the present invention, please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5The adjusting device 4 includes a docking assembly 41 and a sealing assembly 42. The docking assembly 41 includes a connecting pipe 411. One end of the connecting pipe 411 is fixedly connected to the three-way pipe 3. The inner wall of the connecting pipe 411 is plugged into the arc surface of the closing plug 5. The arc surface of the connecting pipe 411 is fixedly connected to a fixing frame 412. The two ends of the fixing frame 412 are respectively slidably connected to an extrusion frame 413 and a docking frame 414. The arc surface of the closing plug 5 is fixedly connected to a fixing pipe 416 at a position corresponding to the extrusion frame 413 and the docking frame 414. The arc surface of the fixing pipe 416 is snap-fitted to the inner walls of the extrusion frame 413 and the docking frame 414. The arc surfaces at both ends of the fixing frame 412 are sleeved. There is a spring 415, one end of the spring 415 is fixedly connected to the fixing frame 412, and the other end of the spring 415 is fixedly connected to the docking frame 414 and the extrusion frame 413 respectively. The arc surface of one end of the closing plug 5 close to the connecting pipe 411 is fixedly connected with a positioning rod 417, and the arc surface of the positioning rod 417 is slidably connected with a positioning ring 418. The inner wall of the positioning ring 418 slides through the arc surface of the closing plug 5. A card groove is opened on the surface of the extrusion frame 413 and the docking frame 414 corresponding to the position of the positioning ring 418. The inner wall of the card groove is carded with the surface of the positioning ring 418. The arc surface of the fixed tube 416 is fixedly connected with a plurality of protrusions 419, and a plurality of protrusions 419 are evenly distributed on the surface of the fixed tube 416, and the plurality of protrusions 419 are all silicone blocks. The extrusion frame 413 and the docking frame 414 are both hard alloy frames. The cross-sectional dimensions of the extrusion frame 413 and the docking frame 414 are adapted to the cross-sectional dimensions of the closure plug 5 and the connecting tube 411. The connecting tube 411 is a medical polyurethane tube, and the inner wall dimension of the connecting tube 411 is adapted to the cross-sectional dimension of the closure plug 5. The sealing component 42 includes a connecting groove 421, and the connecting groove 421 is provided on the inner wall of the connecting tube 411. The arc surface of the closure plug 5 is fixedly connected with a connecting block 422 at a position corresponding to the connecting groove 421, and the surface of the connecting block 422 is adapted to the inner wall of the connecting groove 421. The wall is rotated and connected, a fixing groove 426 is provided on the inner wall of the connecting tube 411 at a position corresponding to the connecting block 422, the cross-sectional size of the fixing groove 426 is matched with the cross-sectional size of the connecting block 422, a sealing ring 424 is sleeved on the arc surface of one end of the closing plug 5 close to the connecting block 422, an inlay groove 425 is provided on the inner wall of the connecting tube 411 at a position corresponding to the sealing ring 424, the inner wall of the inlay groove 425 is interference connected with the sealing ring 424, a limiting groove 423 is provided on the arc surface of the closing plug 5 at a position corresponding to the sealing ring 424, the inner wall surface of the limiting groove 423 is clamped with the sealing ring 424, and the inner wall edges and corners of the connecting groove 421 and the fixing groove 426 are both arc-shaped.
[0034] The working principle of a nasobiliary duct connecting device provided by the utility model is as follows: more and more patients have indwelling nasobiliary ducts after ERCP surgery, and the drainage volume needs to be observed after the surgery. Therefore, keeping the drainage device in a closed state can reduce the occurrence of infection. However, the conventional drainage tube 1 and the closure plug 5 do not match each other, and it is easy for the drainage tube 1 to be unable to be sealed. At this time, in order to facilitate the closure of one end of the drainage tube 1, the drainage tube 1 is first fixed to the syringe 2, and the color, properties and flow of the bile can be observed. Then, one end of the syringe 2 is connected to the three-way tube 3. When the tube is blocked after lithotomy, it can be flushed at the three-way tube 3, and then the adjusting device 4 is used to fix the closure plug 5. First, the extrusion frame 413 and the docking frame 414 are slid apart along the surface of the fixing frame 412, and then the arc surface of the closure plug 5 is inserted into the inner wall of the connecting tube 411. Then, the extrusion frame 413 and the docking frame 414 are spring-loaded. The squeezing force of 415 allows the squeezing frame 413 and the docking frame 414 to engage and limit the fixed tube 416 on the surface of the closure plug 5, thereby effectively and conveniently performing a closed operation on the entire drainage tube 1. After one end of the entire closure plug 5 is plugged into the connecting tube 411, in order to effectively increase the sealing between the connecting tube 411 and the closure plug 5, the connecting block 422 at one end of the closure plug 5 is first rotated along the connecting groove 421 in the connecting tube 411. When the connecting block 422 moves to the position of the fixed groove 426, it is plugged and moved again. Thereafter, the sealing ring 424 on the surface of the closure plug 5 is docked and fixed with the inlay groove 425 opened in the connecting tube 411, thereby effectively and better limiting and fixing the connecting tube 411 and the closure plug 5. By operating the adjusting device 4, the entire drainage device is conveniently sealed, so that the drainage device is in a closed state, effectively reducing the occurrence of infection.
[0035] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A nasobiliary duct connection device, characterized in that: include: A drainage tube (1) and a closure plug (5), wherein one end of the drainage tube (1) is fixedly connected to a syringe (2), an end of the syringe (2) away from the drainage tube (1) is provided with a three-way tube (3), an end of the three-way tube (3) close to the closure plug (5) is provided with an adjustment device (4), the adjustment device (4) comprises a docking assembly (41) and a sealing assembly (42), the docking assembly (41) comprises a connecting tube (411), one end of the connecting tube (411) is fixedly connected to the three-way tube (3), the inner wall of the connecting tube (411) is plugged into the arc surface of the closure plug (5), and the arc surface of the connecting tube (411) is fixedly connected to a fixing frame ( 412), the two ends of the fixing frame (412) are respectively slidably connected with an extrusion frame (413) and a docking frame (414), the arc surface of the closing plug (5) is fixedly connected with a fixing tube (416) at the position corresponding to the extrusion frame (413) and the docking frame (414), the arc surface of the fixing tube (416) is snap-fitted with the inner walls of the extrusion frame (413) and the docking frame (414), the arc surfaces at both ends of the fixing frame (412) are sleeved with springs (415), one end of the spring (415) is fixedly connected to the fixing frame (412), and the other end of the spring (415) is respectively fixedly connected to the docking frame (414) and the extrusion frame (413).
2. A nasobiliary duct connection device according to claim 1, characterized in that: A positioning rod (417) is fixedly connected to the arc surface of one end of the closing plug (5) close to the connecting tube (411); a positioning ring (418) is slidably connected to the arc surface of the positioning rod (417); the inner wall of the positioning ring (418) slides through the arc surface of the closing plug (5); a slot is provided on the surface of the extrusion frame (413) and the docking frame (414) at a position corresponding to the positioning ring (418); the inner wall of the slot is snap-fitted to the surface of the positioning ring (418).
3. A nasobiliary duct connection device according to claim 1, characterized in that: The arc surface of the fixed tube (416) is fixedly connected with a plurality of protrusions (419), the plurality of protrusions (419) are evenly distributed on the surface of the fixed tube (416), and the plurality of protrusions (419) are all silicone blocks.
4. A nasobiliary duct connection device according to claim 1, characterized in that: The extrusion frame (413) and the docking frame (414) are both hard alloy frames, and the cross-sectional dimensions of the extrusion frame (413) and the docking frame (414) are compatible with the cross-sectional dimensions of the closing plug (5) and the connecting pipe (411).
5. A nasobiliary duct connection device according to claim 1, characterized in that: The connecting tube (411) is a medical polyurethane tube, and the inner wall size of the connecting tube (411) is compatible with the cross-sectional size of the closure plug (5).
6. A nasobiliary duct connection device according to claim 1, characterized in that: The sealing assembly (42) comprises a connecting groove (421), wherein the connecting groove (421) is provided on the inner wall of the connecting tube (411); a connecting block (422) is fixedly connected to the arc surface of the closing plug (5) at a position corresponding to the connecting groove (421); the surface of the connecting block (422) is rotatably connected to the inner wall of the connecting groove (421); a fixing groove (426) is provided on the inner wall of the connecting tube (411) at a position corresponding to the connecting block (422); the cross-sectional size of the fixing groove (426) matches the cross-sectional size of the connecting block (422); a sealing ring (424) is sleeved on the arc surface of one end of the closing plug (5) close to the connecting block (422); an inlay groove (425) is provided on the inner wall of the connecting tube (411) at a position corresponding to the sealing ring (424); the inner wall of the inlay groove (425) is interference-connected with the sealing ring (424).
7. A nasobiliary duct connection device according to claim 6, characterized in that: A limiting groove (423) is provided on the arc surface of the closing plug (5) at a position corresponding to the sealing ring (424), and the inner wall surface of the limiting groove (423) is engaged with the sealing ring (424).
8. A nasobiliary duct connection device according to claim 6, characterized in that: The inner wall corners of the connecting groove (421) and the fixing groove (426) are both arc-shaped.