Improved peritoneal dialysis catheter
Through the introduction of curly guide wires in the peritoneal dialysis tube, the peritoneal dialysis tube is solved the problem of poor ascites replacement due to the poor position of the tube, which significantly improves the dialysis effect and the comfort of using.
Patent Information
- Application Number
- CN202420534229.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-03-19
AI Technical Summary
After the existing peritoneal dialysis tube is implanted into the patient's body, the poor position of the tube end resulted in poor replacement of ascites, which affected the dialysis effect.
A improved peritoneal dialysis tube is designed. The tube has a guide wire. After implantation, the guide wire can be pulled out to make it remotely rolled and increase the smoothness of ascitic replacement.
Through the design of the guide wire, the smoothness of the ascites replacement is improved, the dialysis effect is enhanced and the use of the comfort is enhanced, and the patients with peritoneal dialysis provide a better treatment experience.
Smart Images
Figure CN222383874U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of peritoneal dialysis tubes, in particular to an improved peritoneal dialysis tube. Background Art
[0002] Peritoneal dialysis (PD) uses the properties of the peritoneum as a semi-permeable membrane. The prepared dialysate is regularly and regularly infused into the patient's peritoneal cavity through a catheter by gravity. Due to the concentration gradient difference of solutes on both sides of the peritoneum, the solutes on the high-concentration side move to the low-concentration side (diffusion effect); water moves from the hypotonic side to the hypertonic side (osmotic effect). The peritoneal dialysate is continuously replaced to achieve the purpose of removing metabolic products and toxic substances in the body and correcting water and electrolyte imbalance.
[0003] Peritoneal dialysis is a common treatment for patients with renal failure, and the peritoneal dialysis tube is a key medical device for the dialysis process. After the peritoneal dialysis tube in the prior art is implanted in the patient's body, the ascites replacement is sometimes poor due to the poor position of the tube end, which affects the dialysis effect. Therefore, the development of an improved peritoneal dialysis tube that can improve the patency of the dialysis tube is of great significance for improving the treatment effect. Utility Model Content
[0004] In view of the existing deficiencies, the utility model provides an improved peritoneal dialysis tube, which solves the problems raised in the above-mentioned background technology. The utility model optimizes the original dialysis tube structure, with a guide wire inside the tube. After implantation, the guide wire can be pulled out, making the distal end curled, thereby increasing the patency of replacing ascites.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] An improved peritoneal dialysis tube comprises a tube body, a portion of the surface of the tube body is evenly provided with a plurality of dialysis holes, the upper end of the tube body is closed and the lower end is fixed with a connector, a guide wire is arranged inside the tube body, a guide wire head is arranged at the lower right side of the tube body annular surface, and the guide wire head and the tube body are in a Y-shaped structure.
[0007] Furthermore, a top block with a cylindrical structure is fixedly provided at the upper end of the guide wire, and the edges of the top block are rounded.
[0008] Furthermore, the lower end of the guide wire is located inside the guide wire tube head, a sealing plug is plugged inside the guide wire tube head, and the lower end of the guide wire is inserted into the sealing plug.
[0009] Furthermore, a plastic retaining ring is arranged on the inner wall of the guide wire tube head, and the inner diameter of the plastic retaining ring is greater than the diameter of the top block.
[0010] Furthermore, a stopper is fixedly provided at the top end of the tube body, and a positioning groove for accommodating the top block is provided inside the stopper.
[0011] Furthermore, a layer of rubber patch is fixedly provided on the left side of the inner wall of the tube body, and the rubber patch is made of a plurality of rubber threads.
[0012] Furthermore, the guide wire is made of biocompatible material, and the tube body is made of polyurethane material.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1. The utility model optimizes the original dialysis tube structure, with a guide wire inside the tube. After implantation, the guide wire can be pulled out to make the distal end curled, thereby increasing the patency of replacing ascites, improving the dialysis effect and comfort of use, and can bring a better treatment experience to peritoneal dialysis patients.
[0015] 2. In the utility model, a cylindrical top block is fixed on the upper end of the guide wire, and the edges of the top block are rounded. This design can increase the smoothness of the guide wire, facilitate the introduction and operation of the guide wire, and prevent the guide wire from passing through the dialysis hole, ensuring that the guide wire is always located inside the tube body.
[0016] 3. The lower end of the guide wire is located inside the guide wire tube head. A sealing plug is inserted inside the guide wire tube head, and the lower end of the guide wire is inserted into the sealing plug. The sealing plug can effectively seal the internal space of the guide wire tube head to prevent body fluids or external contaminants from entering the tube body, thereby keeping the dialysis tube clean and sterile, reducing the risk of infection, and facilitating the operation of the guide wire.
[0017] 4. A stopper is fixedly provided at the top of the tube body, and a positioning groove for accommodating the top block is provided inside the stopper. The positioning groove inside the stopper can accurately accommodate the top block to ensure that the position of the guide wire inside the tube body is fixed. The design of the stopper and the positioning groove can effectively prevent the upper end of the guide wire from moving inside the tube body.
[0018] 5. A layer of rubber patch is fixed on the left side of the inner wall of the tube body. The rubber patch is made of multiple rubber threads. The rubber patch made of multiple rubber threads has good elasticity. The elasticity makes the inside of the tube body always have a curling tendency, and the tube body can be curled after the guide wire is pulled out. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0020] Figure 2 It is a cross-sectional view of the utility model.
[0021] Figure 3 It is a partial structural schematic diagram of the utility model.
[0022] Figure 4 The utility model is a schematic diagram of the internal structure of the wire guide tube head.
[0023] Figure 5 It is a schematic diagram of the structure of the tube body after the guide wire is pulled out in the utility model.
[0024] In the figure: 1. tube body; 11. stopper; 12. positioning groove; 2. dialysis hole; 3. guide wire tube head; 31. plastic retaining ring; 32. sealing plug; 4. connector; 5. guide wire; 51. top block; 6. rubber patch. DETAILED DESCRIPTION
[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] Example:
[0027] like Figures 1 to 5 As shown, an improved peritoneal dialysis tube comprises a tube body 1, a portion of the surface of the tube body 1 is evenly provided with a plurality of groups of dialysis holes 2, the dialysis area can be increased by the provided dialysis holes 2, and the dialysis efficiency can be improved, the upper end of the tube body 1 is closed and the lower end is fixedly provided with a connector 4, a guide wire 5 is provided inside the tube body 1, a guide wire 5 head 3 is provided at the lower right side of the annular surface of the tube body 1, and the guide wire 5 head 3 and the tube body 1 are in a Y-shaped structure, which is convenient for the introduction and operation of the guide wire 5, and solves the problem in the prior art that after the peritoneal dialysis tube is implanted in the patient's body, the ascites replacement is sometimes poor due to the poor position of the tube end, which affects the dialysis effect.
[0028] A cylindrical top block 51 is fixedly provided at the upper end of the guide wire 5, and the edges of the top block 51 are rounded. This design can increase the smoothness of the guide wire 5, facilitate the introduction and operation of the guide wire 5, and prevent the guide wire 5 from passing through the dialysis hole 2, thereby ensuring that the guide wire 5 is always located inside the tube body 1.
[0029] The lower end of the guide wire 5 is located inside the guide wire 5 tube head 3, and a sealing plug 32 is inserted inside the guide wire 5 tube head 3, and the lower end of the guide wire 5 is inserted in the sealing plug 32. The sealing plug 32 can effectively seal the internal space of the guide wire 5 tube head 3 to prevent body fluids or external contaminants from entering the tube body 1, thereby maintaining the cleanliness and sterility of the dialysis tube, reducing the risk of infection, and facilitating the operation of the guide wire 5.
[0030] A circle of plastic retaining ring 31 is set on the inner wall of the guide wire 5 tube head 3, and the inner diameter of the plastic retaining ring 31 is larger than the diameter of the top block 51. The set plastic retaining ring 31 supports the guide wire 5 tube head 3, which can prevent the guide wire 5 tube head 3 from being deformed during operation and facilitate the installation and disassembly of the sealing plug 32.
[0031] A stopper 11 is fixedly provided at the top of the tube body 1, and a positioning groove 12 for accommodating the top block 51 is provided inside the stopper 11. The positioning groove 12 inside the stopper 11 can accurately accommodate the top block 51, ensuring that the position of the guide wire 5 inside the tube body 1 is fixed. Through the design of the stopper 11 and the positioning groove 12, the upper end of the guide wire 5 can be effectively prevented from moving inside the tube body 1.
[0032] A layer of rubber patch 6 is fixedly provided on the left side of the inner wall of the tube body 1. The rubber patch 6 is made of multiple rubber threads. The rubber patch 6 made of multiple rubber threads has good elasticity. The elasticity makes the inside of the tube body 1 always have a curling tendency, and the tube body 1 can be curled after the guide wire 5 is pulled out.
[0033] The guide wire 5 is made of biocompatible material, which can reduce or avoid the occurrence of rejection reaction, and the biocompatible material usually has antibacterial or antimicrobial properties, which can reduce the risk of infection. The material of the tube body 1 is made of polyurethane material, which has good flexibility, wear resistance and tensile resistance, so that the peritoneal dialysis tube can maintain a stable shape and performance during use, and is not easy to be damaged or deformed. The polyurethane material has good biosafety, will not release harmful substances or cause allergic reactions, and is safe and harmless to patients.
[0034] The working principle of the improved peritoneal dialysis tube is as follows: in actual use, the distal end of the tube body 1 is implanted into the abdominal cavity of the patient, and the tube body 1 is placed in an appropriate position in the abdominal cavity through the guide wire 5, and then the sealing plug 32 is removed, and the guide wire 5 is driven to move outward along the guide wire 5 tube head 3 through the sealing plug 32, and the guide wire 5 is taken out of the tube body 1. Since the inner wall of the tube body 1 is affixed with a rubber patch 6 with good elasticity, when the guide wire 5 is withdrawn, the elastic effect of the rubber patch 6 causes the tube body 1 to form a curled state, increasing the contact area with the ascites, thereby improving the patency of ascites replacement.
[0035] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.
Claims
1. An improved peritoneal dialysis tube, comprising a tube body (1), characterized in that: A plurality of groups of dialysis holes (2) are evenly arranged on a portion of the surface of the tube body (1); the upper end of the tube body (1) is closed and a connector (4) is fixedly arranged on the lower end; a guide wire (5) is arranged inside the tube body (1); a guide wire (5) tube head (3) is arranged at the lower right side of the annular surface of the tube body (1); and the guide wire (5) tube head (3) and the tube body (1) form a Y-shaped structure.
2. The improved peritoneal dialysis tube according to claim 1, characterized in that: A top block (51) with a cylindrical structure is fixedly provided at the upper end of the guide wire (5), and the edges of the top block (51) are all rounded.
3. The improved peritoneal dialysis tube according to claim 1, characterized in that: The lower end of the guide wire (5) is located inside the guide wire (5) tube head (3), a sealing plug (32) is inserted inside the guide wire (5) tube head (3), and the lower end of the guide wire (5) is inserted into the sealing plug (32).
4. The improved peritoneal dialysis tube according to claim 1, characterized in that: The inner wall of the guide wire (5) tube head (3) is provided with a circle of plastic retaining ring (31), and the inner diameter of the plastic retaining ring (31) is greater than the diameter of the top block (51).
5. The improved peritoneal dialysis tube according to claim 1, characterized in that: A stopper (11) is fixedly provided at the top end of the tube body (1), and a positioning groove (12) for accommodating the top block (51) is provided inside the stopper (11).
6. The improved peritoneal dialysis tube according to claim 1, characterized in that: A layer of rubber patch (6) is fixedly provided on the left side of the inner wall of the tube body (1), and the rubber patch (6) is made of a plurality of rubber threads.
7. The improved peritoneal dialysis tube according to claim 1, characterized in that: The guide wire (5) is made of a biocompatible material, and the tube body (1) is made of a polyurethane material.