Peritoneal dialysis catheter connection device

Abstract

The utility model provides a kind of peritoneal dialysis catheter connecting device, including connecting base and peritoneal dialysis catheter, first sliding slot is opened in connecting base, peritoneal dialysis catheter is slidably connected in first sliding slot, and one end of peritoneal dialysis catheter is fixedly connected with catheter end, guiding assembly is provided on catheter end, third sliding slot is opened in the both sides of connecting base, and elastic member is provided in third sliding slot, one end of elastic member is fixedly connected with the end wall of third sliding slot, and the other end of elastic member is fixedly connected with second limit sliding block. The scheme is cooperated by arc third sliding slot, elastic member and second limit sliding block, so that the slider is adaptively attached to the abdomen along the arc surface, the connecting base is stably fixed and the compression feeling is reduced;Combined with chamfer design, elastic energy storage and multi-stage sliding slot layout, flexible contact is formed while ensuring rigid support, and finally the comprehensive effect of improving catheter positioning accuracy, reducing tissue damage risk, enhancing operation convenience and patient comfort is achieved.

Description

Technical Field

[0001] This utility model relates to the field of peritoneal dialysis catheter technology, specifically to a peritoneal dialysis catheter connection device. Background Technology

[0002] Peritoneal dialysis catheters are a crucial treatment pathway for patients with end-stage renal disease, and the stability and ease of operation of their connection directly impact clinical efficacy and patient comfort. Traditional catheter connection devices often employ rigid clamping or single-limiting structures, resulting in problems such as unstable fixation, easy compression of the abdominal skin, and a high risk of catheter displacement. In particular, variations in abdominal contours can lead to poor fit, causing leakage or infection. Furthermore, existing catheter advancement mechanisms lack multi-directional adjustment capabilities, requiring repeated angle adjustments during operation, which can easily cause mechanical damage to abdominal tissues. Additionally, the limiting components are often designed as separate units, making unlocking and repositioning cumbersome and unsuitable for rapid operation. While existing technologies have attempted optimization through elastic clips or adjustable buckles, limitations remain, including structural redundancy, large rigid contact surfaces, and insufficient fine-tuning precision, restricting clinical applicability and patient tolerance for long-term use. Therefore, there is an urgent need for a catheter connection device that combines flexible fixation, multi-directional limiting, and precise guidance to improve operational efficiency and reduce the risk of complications. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a peritoneal dialysis catheter connection device, which solves the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a peritoneal dialysis catheter connection device, characterized in that it includes a connecting base and a peritoneal dialysis catheter. A first sliding groove is provided on the connecting base, and the peritoneal dialysis catheter is slidably connected to the first sliding groove. One end of the peritoneal dialysis catheter is fixedly connected to a catheter tip, and a guide component is provided on the catheter tip. Third sliding grooves are provided on both sides of the connecting base. An elastic element is provided within the third sliding groove. One end of the elastic element is fixedly connected to one end wall of the third sliding groove, and the other end of the elastic element is fixedly connected to a second limiting slider. The second limiting slider is slidably connected to the third sliding groove, and a limiting component is provided at one end of the connecting base.

[0007] Preferably, the guide assembly includes a pull rope, an elastic end, and a limiting collar. A first slot is formed on the end of the guide tube. The elastic end is fixedly connected to one end wall of the first slot. An eighth slot is formed at the end of the elastic end away from the end of the guide tube. The limiting collar is fitted into the eighth slot. A sixth sliding groove is formed in the connecting base. A rotating slide rod is slidably connected in the sixth sliding groove. One end of the pull rope is fixedly connected to the outer surface of the rotating slide rod, and the other end of the pull rope is fixedly connected to the outer surface of the limiting collar.

[0008] Preferably, the limiting component includes a lever and a third limiting slider. The lever is fixedly connected to the third limiting slider. A fourth sliding groove and a fifth sliding groove are provided on the connecting base. One end of the fourth sliding groove is connected to the fifth sliding groove, and the other end of the fourth sliding groove is connected to the outside. The lever is slidably connected to the fourth sliding groove, and the third limiting slider is slidably connected to the fifth sliding groove.

[0009] Preferably, the sixth sliding groove is radially inclined relative to the connecting base, the rotating slide rod is made of a rigid material, and the elastic end is made of a flexible material.

[0010] Preferably, the third sliding groove, the second limiting slider, and the elastic element are all arc-shaped, and the end of the second limiting slider away from the third sliding groove is provided with a chamfer.

[0011] Preferably, a first limiting slider is fixedly connected to the inner circular surface of the first sliding groove, and a second sliding groove is provided on the outer circular surface of the peritoneal dialysis catheter, with the first limiting slider slidably connected to the second sliding groove.

[0012] (III) Beneficial Effects

[0013] This invention provides a peritoneal dialysis catheter connection device. It has the following beneficial effects:

[0014] 1. This solution utilizes an arc-shaped third sliding groove, an elastic element, and a second limiting slider to allow the slider to adaptively conform to the abdomen along the arc surface, achieving stable fixation of the connecting base and reducing pressure. The axial sliding structure between the first limiting slider and the second sliding groove of the catheter ensures stable catheter movement. A multi-directional limiting mechanism using a lever-linked third limiting slider within the fourth and fifth sliding grooves enables quick, single-handed catheter positioning. A pull-cord guide assembly, combining a rigid rotating slide rod with a flexible elastic end, along with an inclined sixth sliding groove to adjust the pull-cord tension, allows for fine-tuning of the catheter tip angle and buffering guidance during advancement. The combination of chamfered design, elastic energy storage, and a multi-level sliding groove layout ensures rigid support while creating flexible contact, ultimately achieving a comprehensive effect of improved catheter positioning accuracy, reduced tissue damage risk, enhanced operational convenience, and improved patient comfort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0018] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure of BB;

[0019] Figure 5 for Figure 2 A schematic diagram of the cross-sectional structure of CC.

[0020] In the diagram: 11. Connecting base; 12. First sliding groove; 13. Peritoneal dialysis catheter; 14. First limiting slider; 15. Second sliding groove; 16. Third sliding groove; 17. Second limiting slider; 18. Elastic element; 20. Fourth sliding groove; 21. Toggle lever; 22. Fifth sliding groove; 23. Third limiting slider; 24. Sixth sliding groove; 25. Rotating slide rod; 26. Pull rope; 30. Catheter end; 31. First slot; 32. Elastic end; 33. Eighth slot; 34. Limiting collar. Detailed Implementation

[0021] This utility model provides a peritoneal dialysis catheter connection device, such as... Figure 1-5 As shown, it includes a connecting base 11, a first sliding groove 12, an abdominal dialysis catheter 13, a first limiting slider 14, a second sliding groove 15, a third sliding groove 16, a second limiting slider 17, an elastic element 18, a fourth sliding groove 20, a lever 21, a fifth sliding groove 22, a third limiting slider 23, a sixth sliding groove 24, a rotating slide bar 25, a pull rope 26, a catheter end 30, a first slot 31, an elastic end 32, an eighth slot 33, and a limiting collar 34.

[0022] like Figure 1-5 As shown, a first sliding groove 12 is provided on the connecting base 11, and an abdominal dialysis catheter 13 is slidably connected to the first sliding groove 12. One end of the abdominal dialysis catheter 13 is fixedly connected to a catheter end 30, and a guide component is provided on the catheter end 30. A third sliding groove 16 is provided on both sides of the connecting base 11, and an elastic element 18 is provided in the third sliding groove 16. One end of the elastic element 18 is fixedly connected to one end wall of the third sliding groove 16, and the other end of the elastic element 18 is fixedly connected to a second limiting slider 17. The second limiting slider 17 is slidably connected to the third sliding groove 16, and a limiting component is provided at one end of the connecting base 11.

[0023] The third sliding groove 16, the second limiting slider 17 and the elastic element 18 are all arc-shaped. The end of the second limiting slider 17 away from the third sliding groove 16 is provided with a chamfer. The first limiting slider 14 is fixedly connected to the inner circular surface of the first sliding groove 12. The second sliding groove 15 is opened on the outer circular surface of the peritoneal dialysis catheter 13. The first limiting slider 14 is slidably connected to the second sliding groove 15.

[0024] The guide assembly includes a pull rope 26, an elastic end 32, and a limiting collar 34. A first slot 31 is provided on the guide tube end 30. The elastic end 32 is fixedly connected to one end wall of the first slot 31. An eighth slot 33 is provided at the end of the elastic end 32 away from the guide tube end 30. The limiting collar 34 is fitted into the eighth slot 33. A sixth sliding groove 24 is provided in the connecting base 11. A rotating slide rod 25 is slidably connected in the sixth sliding groove 24. One end of the pull rope 26 is fixedly connected to the outer surface of the rotating slide rod 25, and the other end of the pull rope 26 is fixedly connected to the outer surface of the limiting collar 34.

[0025] The limiting assembly includes a lever 21 and a third limiting slider 23. The lever 21 and the third limiting slider 23 are fixedly connected. The connecting base 11 has a fourth sliding groove 20 and a fifth sliding groove 22. One end of the fourth sliding groove 20 is connected to the fifth sliding groove 22, and the other end of the fourth sliding groove 20 is connected to the outside. The lever 21 is slidably connected to the fourth sliding groove 20, and the third limiting slider 23 is slidably connected to the fifth sliding groove 22. The sixth sliding groove 24 is radially inclined relative to the connecting base 11. The rotating slide rod 25 is made of rigid material, and the elastic end 32 is made of flexible material.

[0026] When connecting the peritoneal dialysis catheter using this method, firstly, the connecting base 11 is placed on the abdomen and fixed by the second limiting slider 17. Then, the lever 21 is moved along the fourth sliding groove 20. The lever 21 drives the third limiting slider 23 to slide along the fifth sliding groove 22 and limits the peritoneal dialysis catheter 13. Finally, the peritoneal dialysis catheter 13 is pushed along the first sliding groove 12, and the tension of the pull rope 26 between the sixth sliding groove 24 and the rotating slider 25 is adjusted by rotating the rotating slider 25, thereby fine-tuning the sliding direction of the catheter tip 30.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A peritoneal dialysis catheter connection device, characterized in that: The device includes a connecting base (11) and an peritoneal dialysis catheter (13). The connecting base (11) has a first sliding groove (12), and the peritoneal dialysis catheter (13) is slidably connected to the first sliding groove (12). One end of the peritoneal dialysis catheter (13) is fixedly connected to a catheter tip (30), and a guide component is provided on the catheter tip (30). Both sides of the connecting base (11) have third sliding grooves (16), and an elastic element (18) is provided in the third sliding groove (16). One end of the elastic element (18) is fixedly connected to one end wall of the third sliding groove (16), and the other end of the elastic element (18) is fixedly connected to a second limiting slider (17). The second limiting slider (17) is slidably connected to the third sliding groove (16), and a limiting component is provided at one end of the connecting base (11).

2. The peritoneal dialysis catheter connection device according to claim 1, characterized in that: The guide assembly includes a pull rope (26), an elastic end (32), and a limiting collar (34). A first slot (31) is provided on the guide tube end (30). The elastic end (32) is fixedly connected to one end wall of the first slot (31). An eighth slot (33) is provided at the end of the elastic end (32) away from the guide tube end (30). The limiting collar (34) is fitted into the eighth slot (33). A sixth sliding groove (24) is provided in the connecting base (11). A rotating slide rod (25) is slidably connected in the sixth sliding groove (24). One end of the pull rope (26) is fixedly connected to the outer surface of the rotating slide rod (25), and the other end of the pull rope (26) is fixedly connected to the outer surface of the limiting collar (34).

3. The peritoneal dialysis catheter connection device according to claim 2, characterized in that: The limiting component includes a lever (21) and a third limiting slider (23). The lever (21) is fixedly connected to the third limiting slider (23). The connecting base (11) has a fourth sliding groove (20) and a fifth sliding groove (22). One end of the fourth sliding groove (20) is connected to the fifth sliding groove (22), and the other end of the fourth sliding groove (20) is connected to the outside. The lever (21) is slidably connected to the fourth sliding groove (20), and the third limiting slider (23) is slidably connected to the fifth sliding groove (22).

4. The peritoneal dialysis catheter connection device according to claim 2, characterized in that: The sixth sliding groove (24) is radially inclined relative to the connecting base (11), the rotating slide rod (25) is made of rigid material, and the elastic end (32) is made of flexible material.

5. The peritoneal dialysis catheter connection device according to claim 1, characterized in that: The third sliding groove (16), the second limiting slider (17) and the elastic element (18) are all arc-shaped, and the end of the second limiting slider (17) away from the third sliding groove (16) is provided with a chamfer.

6. The peritoneal dialysis catheter connection device according to claim 1, characterized in that: A first limiting slider (14) is fixedly connected to the inner circular surface of the first sliding groove (12), and a second sliding groove (15) is provided on the outer circular surface of the peritoneal dialysis catheter (13). The first limiting slider (14) is slidably connected to the second sliding groove (15).

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