Three-way connection structure for urinary catheter

Abstract

This utility model discloses a three-way connection structure for urinary catheters, belonging to the field of urological catheter technology. It includes a three-way tube with a blocking device installed inside to change the direction of fluid flow. Limiting devices are fixedly connected to both ends of the three-way tube, and connectors are secured within the limiting devices. The blocking device includes two fixing plates disposed inside the three-way tube, with the same fixing rod fixedly connected within each plate. In this utility model, when flushing fluid is discharged through one side of the three-way tube, the flow of the flushing fluid exerts a pushing force on the cover plate, causing it to rotate via a rotating ring. The rotating ring rotates outside the fixing rod, causing the cover plate to rotate 90 degrees, thereby blocking the lower tubing and allowing water to flow into the body at a 90-degree angle. After the water flow stops, a coil spring causes the rotating ring to rotate back to its original position along the outside of the fixing rod, blocking one side of the tubing and thus allowing the body fluid to drain into the drainage bag.

Description

Technical Field

[0001] This utility model belongs to the field of urological catheter technology, and particularly relates to a three-way connection structure for urinary catheters. Background Technology

[0002] Urology is a medical specialty that focuses on the research and treatment of diseases of the urinary system, including diseases of organs such as the kidneys, bladder, urethra, and prostate. Common urinary system diseases include urinary tract infections, kidney stones, prostate diseases, and urinary system tumors. Catheterization is a common urological procedure used to help drain urine when a patient is unable to urinate voluntarily. Catheterization can be divided into short-term and long-term. Short-term catheterization is often used for patients after surgery or with acute urinary retention, while long-term catheterization may be used for persistent difficulty in urination caused by neurological problems. Catheterization procedures must be performed with care to avoid complications such as infection.

[0003] Current technology uses conventional infusion three-way tubing, which cannot be directly connected to urinary catheters and drainage bags, resulting in connector mismatch. In addition, during bladder irrigation, irrigation fluid may flow into the drainage bag through the connection, affecting the irrigation effect and increasing the risk of infection.

[0004] Based on this, the present invention designs a three-way connection structure for urinary catheters to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the problem that current technology uses conventional infusion three-way connectors, which cannot be directly connected to urinary catheters and drainage bags, resulting in mismatched connectors. Furthermore, during bladder irrigation, irrigation fluid may flow into the drainage bag through the connection, affecting the irrigation effect and increasing the risk of infection. Therefore, this invention proposes a three-way connector structure for urinary catheters.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A three-way connection structure for a urinary catheter includes a three-way tube, in which a blocking device for changing the direction of fluid flow is installed, and limiting devices are fixedly connected to both ends of the three-way tube, with connectors locked inside the limiting devices.

[0008] The shielding device includes two fixing plates, which are disposed inside a three-way pipe. A fixed rod is fixedly connected inside the two fixing plates. A rotating ring is fitted around the fixing rod, and a cover plate is fixedly connected outside the rotating ring. Two coil springs are fitted around the fixing rod, with one end of the coil spring fixedly connected inside the fixing plate and the other end of the coil spring fixedly connected inside the rotating ring.

[0009] As a further description of the above technical solution:

[0010] The three-way pipe has a cavity inside, and the fixing plate is fixedly connected inside the cavity.

[0011] As a further description of the above technical solution:

[0012] The swivel ring is configured as a sealing rubber ring and is movably connected inside the tee pipe.

[0013] As a further description of the above technical solution:

[0014] The cover plate is the same size as the inner diameter of the tee pipe and is fitted inside the tee pipe.

[0015] As a further description of the above technical solution:

[0016] The limiting device includes a connecting pipe, which is fixedly connected inside a tee pipe. A sleeve is fixedly connected to the outside of the connecting pipe. Several circular holes are opened inside the sleeve, and a ball is placed inside each of the circular holes. A handle is provided outside the sleeve, and a pressing block is fixedly connected inside the handle. A return spring is provided inside the sleeve.

[0017] As a further description of the above technical solution:

[0018] One end of the pull-back spring is fixedly connected inside the sleeve, and the other end of the pull-back spring is fixedly connected inside the compression block.

[0019] As a further description of the above technical solution:

[0020] The size of the sphere is slightly smaller than the inner diameter of the circular hole, and it is movably connected inside the sphere.

[0021] As a further description of the above technical solution:

[0022] The height of the extrusion block is slightly larger than the inner diameter of the circular hole, and it is positioned outside the circular hole.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0024] 1. In this utility model, when the flushing fluid is discharged through one side of the three-way pipe, the flow of the flushing fluid exerts a pushing force on the cover plate, pushing the cover plate to rotate through the rotating ring. The rotating ring rotates outside the fixed rod, causing the cover plate to rotate 90 degrees, thereby blocking the pipe below, so that the water flows into the body at a 90-degree angle. After the water flow stops, the coil spring causes the rotating ring to rotate and reset along the outside of the fixed rod, blocking one side of the pipe, thereby realizing the discharge of the body fluid into the drainage bag.

[0025] 2. In this utility model, when it is necessary to replace different models of connectors, by pulling the handle, the handle causes the squeezing block to slide outside the sleeve, causing the squeezing block to move away from the ball. At this time, after pulling out the old connector, insert the new connector and release the handle. The spring that pulls back will apply elastic force to the squeezing block, forcing the squeezing block to return to its original position. At the same time, it will apply a pushing force to the ball, causing the ball to re-enter the connector, thereby realizing the quick replacement of different models of connectors. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the three-way connection structure for a urinary catheter proposed in this utility model;

[0027] Figure 2 This is a three-dimensional cross-sectional view of the three-way connection structure for a urinary catheter proposed in this utility model.

[0028] Figure 3 The present invention proposes a three-way connection structure for urinary catheters. Figure 2 Enlarged structural diagram of part A in the middle;

[0029] Figure 4 This is a three-dimensional structural diagram of the three-way connection structure shielding device for a urinary catheter proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the three-way connection structure for a urinary catheter proposed in this utility model, showing the separation of the sleeve and the connector.

[0031] Figure 6 This is a three-dimensional cross-sectional view of the handle of the three-way connection structure for a urinary catheter proposed in this utility model.

[0032] Legend:

[0033] 1. T-joint; 2. Shielding device; 21. Fixing plate; 22. Fixing rod; 23. Rotary ring; 24. Coil spring; 25. Cover plate; 3. Limiting device; 31. Connecting pipe; 32. Sleeve; 33. Round hole; 34. Ball; 35. Handle; 36. Extrusion block; 37. Return spring; 4. Connector. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-6 ,

[0036] First embodiment:

[0037] This utility model provides a technical solution: a three-way connection structure for a urinary catheter, including a three-way tube 1, a blocking device 2 for changing the direction of liquid flow installed inside the three-way tube 1, and limiting devices 3 fixedly connected to both ends of the three-way tube 1, with a connector 4 locked inside the limiting device 3.

[0038] The shielding device 2 includes two fixing plates 21, which are installed inside the three-way pipe 1. The same fixing rod 22 is fixedly connected inside the two fixing plates 21. A rotating ring 23 is sleeved on the fixing rod 22, and a cover plate 25 is fixedly connected to the outside of the rotating ring 23. Two coil springs 24 are sleeved on the fixing rod 22. The cooperation between the fixing rod 22 and the coil springs 24 realizes the reset function of the shielding device 2. When the flushing fluid stops flowing, the elastic force of the coil springs 24 can drive the rotating ring 23 to reset, so that the cover plate 25 returns to the initial position, thereby shielding the pipe and preparing for the next operation. The combination of the coil springs 24 and the fixing rod 22 makes the reset action automatic, ensuring the smoothness of the operation and avoiding human intervention.

[0039] One end of the coil spring 24 is fixedly connected to the fixed plate 21, and the other end of the coil spring 24 is fixedly connected to the rotating ring 23. The cooperation between the rotating ring 23 and the fixed rod 22 allows the shielding device 2 to rotate flexibly under the thrust of the flushing fluid. The cover plate 25 fixedly connected to the outside of the rotating ring 23 can effectively shield the pipeline below as the rotating ring 23 rotates, ensuring that the flushing fluid is correctly introduced into the body. The coordinated work of the rotating ring 23 and the fixed rod 22 can achieve a smooth rotation action and ensure that the cover plate 25 maintains a stable shielding effect after rotating to the predetermined position.

[0040] Specifically, such as Figures 2-4 As shown, the three-way pipe 1 has a cavity, and the fixing plate 21 is fixedly connected in the cavity. The rotating ring 23 is a sealing rubber ring and is movably connected in the three-way pipe 1. The cover plate 25 has the same size as the inner diameter of the three-way pipe 1 and is stuck in the three-way pipe 1.

[0041] During operation, when the flushing fluid is discharged through one side of the three-way pipe 1, the flow of the flushing fluid exerts a pushing force on the cover plate 25, pushing the cover plate 25 to rotate through the rotating ring 23. The rotating ring 23 rotates outside the fixed rod 22, causing the cover plate 25 to rotate 90 degrees, thereby blocking the pipe below, allowing the water to flow into the body at a 90-degree angle. After the water flow stops, the coil spring 24 causes the rotating ring 23 to rotate and reset along the outside of the fixed rod 22, blocking one side of the pipe, thereby realizing the discharge of the body fluid into the drainage bag.

[0042] Second embodiment:

[0043] Specifically, such as Figures 5-6As shown, the limiting device 3 includes a connecting pipe 31, which is fixedly connected inside the three-way pipe 1. A sleeve 32 is fixedly connected outside the connecting pipe 31. The cooperation between the connecting pipe 31 and the sleeve 32 enables the limiting device 3 to be firmly fixed inside the three-way pipe 1 and provides stable connection support. The handle 35 outside the sleeve 32 and the squeezing block 36 inside can accurately control the engagement and release of the ball 34, ensuring the smooth replacement of different models of connectors 4. The structural cooperation between the connecting pipe 31 and the sleeve 32 ensures the flexible replacement and stable engagement of the connectors 4.

[0044] The sleeve 32 has several circular holes 33 inside, and a ball 34 is placed inside each of the circular holes 33. A handle 35 is fitted over the sleeve 32, and a pressing block 36 is fixedly connected inside the handle 35. A return spring 37 is installed inside the sleeve 32, with one end fixedly connected inside the sleeve 32 and the other end fixedly connected inside the pressing block 36. The size of the ball 34 is slightly smaller than the inner diameter of the circular holes 33, and it is movably connected inside the ball 34. The height of the pressing block 36 is slightly larger than the inner diameter of the circular holes 33, and it is locked outside the circular holes 33. The fit between the ball 34 and the circular holes 33 ensures the precise locking function of the limiting device 3. The ball 34 is slightly smaller than the inner diameter of the circular holes 33, allowing it to move flexibly to achieve locking and releasing, avoiding an overly tight or loose connection. This fit design improves the ease and accuracy of replacing the connector 4, and ensures the firmness and safety of the connection.

[0045] During operation, when it is necessary to replace different models of connector 4, by pulling the handle 35, the handle 35 causes the pressing block 36 to slide outside the sleeve 32, causing the pressing block 36 to move away from the ball 34. At this time, after pulling out the old connector 4, insert the new connector 4 and release the handle 35. The spring that pulls back will apply elastic force to the pressing block 36, forcing the pressing block 36 to return to its original position. At the same time, it will apply a pushing force to the ball 34, causing the ball 34 to re-clamp into the connector 4, thereby realizing the quick replacement of different models of connector 4.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A three-way connection structure for a urinary catheter, comprising a three-way tube (1), characterized in that, The three-way pipe (1) is equipped with a shielding device (2) for changing the direction of liquid flow. The two ends of the three-way pipe (1) are fixedly connected to a limiting device (3). The limiting device (3) is fitted with a connector (4). The shielding device (2) includes two fixing plates (21), which are set inside the three-way pipe (1). The same fixing rod (22) is fixedly connected inside the two fixing plates (21). A rotating ring (23) is provided on the outer sleeve of the fixing rod (22). A cover plate (25) is fixedly connected to the outer sleeve of the rotating ring (23). Two coil springs (24) are provided on the outer sleeve of the fixing rod (22). One end of the coil spring (24) is fixedly connected inside the fixing plate (21), and the other end of the coil spring (24) is fixedly connected inside the rotating ring (23).

2. The tee connection for a urinary catheter according to claim 1, characterized in that The three-way pipe (1) has a cavity inside, and the fixing plate (21) is fixedly connected inside the cavity.

3. The tee connection for a urinary catheter according to claim 1, wherein The swivel (23) is configured as a sealing rubber ring and is movably connected inside the tee (1).

4. The tee connection for a urinary catheter according to claim 1, wherein The cover plate (25) has the same size as the inner diameter of the tee pipe (1) and is fitted inside the tee pipe (1).

5. The tee connection for a urinary catheter according to claim 1, wherein The limiting device (3) includes a connecting pipe (31), which is fixedly connected inside the three-way pipe (1). A sleeve (32) is fixedly connected outside the connecting pipe (31). A plurality of round holes (33) are opened inside the sleeve (32). A ball (34) is provided inside the round holes (33). A handle (35) is provided outside the sleeve (32). A pressing block (36) is fixedly connected inside the handle (35). A return spring (37) is provided inside the sleeve (32).

6. The tee connection for a urinary catheter according to claim 5, characterized in that One end of the pull-back spring (37) is fixedly connected inside the sleeve (32), and the other end of the pull-back spring (37) is fixedly connected inside the compression block (36).

7. The tee connection for a urinary catheter according to claim 6, characterized in that The size of the sphere (34) is slightly smaller than the inner diameter of the circular hole (33), and it is movably connected inside the sphere (34).

8. The tee connection for a urinary catheter according to claim 7, characterized in that The height of the extrusion block (36) is slightly greater than the inner diameter of the circular hole (33), and it is positioned outside the circular hole (33).

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