A peritoneal dialysis device for nephrology

Abstract

This invention relates to the field of dialysis device technology, specifically a peritoneal dialysis device for nephrology, comprising an abdominal binder body and a peristaltic pump body. The abdominal binder body has a fitting surface in its middle, within which a connector tube is embedded. An auxiliary squeezing assembly is located on one side of the peristaltic pump body. This assembly includes a support plate mounted on the outer wall of the pump body. A cylinder is embedded at one of the two included edges of the support plate. A clamping frame is fixedly connected to the output end of cylinder one. A cylinder two is embedded in the middle of the clamping frame. A bracket is fixedly connected to the output end of cylinder two. A squeezing roller is rotatably engaged at the inner end of the bracket. A connector assembly is located at the front end of the abdominal binder body. This assembly includes a connector one sleeved over the connector tube. A dialysis tube is engaged at the inner end of the connector tube. A connector two is fixedly connected to one end of the dialysis tube. A sealing ring is fixedly connected to one edge of connector two. This invention rapidly fills the entire connector gap with disinfectant, providing comprehensive sterilization of the entire interface area and reducing the risk of infection from the source.

Description

Technical Field

[0001] This invention relates to the field of dialysis device technology, specifically to a peritoneal dialysis device for nephrology. Background Technology

[0002] Peritoneal dialysis devices in nephrology are core medical equipment for the treatment of end-stage renal disease. They utilize the peritoneum as a semipermeable membrane to construct an extracorporeal circulation system, enabling the exchange of substances between the dialysate and intraperitoneal fluid. Their core functions include precise infusion of dialysate, promoting the permeation and removal of metabolic waste and excess water, and safely draining waste fluid, thereby maintaining the patient's electrolyte and acid-base balance.

[0003] This device is widely used in clinical treatment in nephrology and in home dialysis settings, and is suitable for patients with end-stage renal failure who cannot tolerate hemodialysis or require long-term replacement therapy. It offers advantages such as ease of operation and flexible treatment cycles, reducing patient dependence on hospitals, improving treatment adherence, and providing a safe and efficient renal replacement therapy solution for the long-term care of nephrological diseases. Existing peritoneal dialysis devices for nephrology have the following shortcomings: Firstly, the dialysis tubing connectors rely solely on sealing rings for sealing the connection between the tubing and the connector, lacking a corresponding instant sterilization design. Secondly, the dialysis devices lack dedicated auxiliary structures adapted to dual-type drug storage chambers, only allowing direct connection of single-type chambers. For dual-type chambers requiring mixing, manual squeezing or additional tools are necessary to mix the solutions, which is cumbersome. Therefore, it is necessary to propose a new peritoneal dialysis device for nephrology. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a peritoneal dialysis device for nephrology.

[0005] The technical solution adopted by this invention to solve its technical problem is: a peritoneal dialysis device for nephrology, comprising an abdominal binder body and a peristaltic pump body, wherein a fitting surface is provided in the middle of the abdominal binder body, and a connector tube is embedded in the fitting surface. An auxiliary squeezing assembly is provided on one side of the peristaltic pump body. The auxiliary squeezing assembly includes a support plate installed on the outer wall of the peristaltic pump body. A cylinder is embedded in the two included edges of the support plate. A clamping frame is fixedly connected to the output end of the cylinder. A cylinder is embedded in the middle of the clamping frame. A bracket is fixedly connected to the output end of the cylinder. A squeezing roller is rotatably engaged in the inner end of the bracket. The abdominal binder body has a connector assembly at its front end. The connector assembly includes a connector one sleeved on the outer end of a connector tube. A dialysis tube is snapped into the inner end of the connector tube. A connector two is fixedly connected to one end of the dialysis tube. A sealing ring is fixedly connected to the edge of one end of the connector two. A puncture needle is fixedly connected to one end of the connector two near the sealing ring. A connector groove is opened in the inner end of the connector one. Several disinfection sacs are provided in the inner end of the connector groove. A sealing plug distributed in the connector groove is fixedly connected to the bottom end of the disinfection sac. A sealing frame embedded in the connector groove is snapped into the sealing plug. A waste liquid collection groove is opened in the connector two near the sealing frame.

[0006] Specifically, the front and back sides of the abdominal binder body are respectively fixedly connected with Velcro 1 and Velcro 2.

[0007] Specifically, the top of the support plate has a placement groove.

[0008] Specifically, the diameter of the placement slot is larger than the inner diameter of the clamping frame.

[0009] Specifically, the surface of the extrusion roller is made of medical-grade silicone.

[0010] Specifically, the sealing ring is fitted into the inner end of the connector groove, and the sealing ring is made of medical-grade silicone.

[0011] Specifically, the tip of the puncture needle corresponds to several disinfection sacs, and disinfectant is placed inside the disinfection sacs.

[0012] One of the beneficial effects of this invention is that the auxiliary extrusion assembly is highly flexible, adaptable to the diverse dialysis needs of both single-type and dual-type drug storage tanks. For dual-type drug storage tanks, cylinder one drives the clamping frame to stably position the drug storage tank, while cylinder two drives the flexible extrusion roller to roll and extrude, ensuring thorough mixing of the two dialysis solutions before infusion and guaranteeing uniform mixing. For single-type drug storage tanks, direct connection and use are possible without activating the extrusion function, making operation convenient.

[0013] The second beneficial effect of this invention is that the connector assembly innovatively adopts a collaborative design of a puncture needle, a disinfection sac, a sealing plug-sealing frame, and a waste liquid collection tank, combining the advantages of immediate disinfection, leak prevention, and waste liquid collection. When connector two is inserted, the puncture needle precisely punctures the disinfection sac, allowing disinfectant to quickly fill the connector gap, achieving all-around sterilization of the interface and reducing the risk of infection from the source. Simultaneously, the sealing plug snaps into the sealing frame, and together with the tight fit between the sealing ring and the connector groove, forms double leak-proof protection, effectively preventing dialysis fluid leakage and disinfectant loss. When the connector is subsequently removed, the sealing plug moves synchronously with the connector and detaches from the sealing frame, allowing residual waste liquid to automatically flow into the waste liquid collection tank, preventing leakage and contamination, ensuring a clean and sterile dialysis process throughout, and significantly improving safety and practicality. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of a peritoneal dialysis device for nephrology provided by the present invention; Figure 2 A schematic diagram of the abdominal belt body structure of a peritoneal dialysis device for nephrology provided by the present invention; Figure 3 This invention provides a cross-sectional structural diagram of the abdominal belt body of a peritoneal dialysis device for nephrology. Figure 4 This invention provides a peritoneal dialysis device for nephrology. Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This invention provides a peritoneal dialysis device for nephrology. Figure 4 Enlarged structural diagram at point B; Figure 6 This is a cross-sectional schematic diagram of the support plate of a peritoneal dialysis device for nephrology provided by the present invention.

[0016] In the diagram: 1. Abdominal band body; 2. Auxiliary compression assembly; 10. Adhesive surface; 11. Velcro 1; 12. Velcro 2; 13. Connector tube; 21. Peristaltic pump body; 22. Support plate; 23. Cylinder 1; 24. Clamping frame; 25. Cylinder 2; 26. Bracket; 27. Compression roller; 201. Placement groove; 3. Connector assembly; 31. Connector 1; 32. Dialysis tube; 33. Connector 2; 34. Sealing ring; 35. Puncture needle; 36. Sterilization sac; 37. Sealing plug; 38. Sealing frame; 301. Connector groove; 302. Waste liquid collection tank. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figures 1-6 As shown, the present invention provides the following technical solution: Example 1: A peritoneal dialysis device for nephrology includes an abdominal binder body 1 and a peristaltic pump body 21. An auxiliary squeezing assembly 2 is provided on one side of the peristaltic pump body 21. The auxiliary squeezing assembly 2 includes a support plate 22 installed on the outer wall of the peristaltic pump body 21. A cylinder 23 is embedded in the two included edges of the support plate 22. A clamping frame 24 is fixedly connected to the output end of the cylinder 23. A cylinder 25 is embedded in the middle of the clamping frame 24. A bracket 26 is fixedly connected to the output end of the cylinder 25. A squeezing roller 27 is rotatably engaged at the inner end of the bracket 26. A placement groove 201 is opened at the top of the support plate 22. The diameter of the placement groove 201 is larger than the inner diameter of the clamping frame 24. The surface of the squeezing roller 27 is made of medical-grade silicone.

[0019] Among them, cylinder 23 and cylinder 25 are both medical-grade miniature cylinders. They are electrically connected to the control module of the peristaltic pump body 21, which can realize coordinated start and stop and precise stroke adjustment. The extrusion roller 27 and the bracket 26 are rotated through bearings to ensure smooth rolling during the extrusion process. Its medical-grade silicone or rubber material has both flexibility and wear resistance, which can ensure the extrusion force and avoid damage to the drug storage tank and dialysis tubing.

[0020] In use, select either a single or double-type drug storage chamber according to dialysis needs, with one side corresponding to the dialysate and the other side corresponding to the nutrient solution. Place the drug storage chamber in the placement slot 201 of the support plate 22, ensuring that the discharge end of the drug storage chamber is precisely connected to the dialysis tubing. Activate cylinder 1 23 to drive the clamping frame 24 to move towards the drug storage chamber, achieving stable clamping and positioning of the drug storage chamber and preventing displacement during compression. If using a single-type drug storage chamber, the auxiliary compression component 2 is not required; simply connect it to the dialysis tubing 32. If using a double-type drug storage chamber, cylinder 25 pushes the support 26 and the compression roller 27, causing the compression roller 27 to adhere to the surface of the drug storage chamber. In conjunction with the working rhythm of the peristaltic pump body 21, the extension and retraction of cylinder 25 drives the compression roller 27 to roll and compress, assisting in merging the dialysate in the drug storage chamber into one drug storage chamber, which is then uniformly pushed to the dialysis tubing by the peristaltic pump body 21.

[0021] Example 2: The technical solution of this example, which differs from Example 1, includes: a fitting surface 10 is provided in the middle of the abdominal binder body 1, a connector tube 13 is embedded in the fitting surface 10, a connector assembly 3 is provided at the front end of the abdominal binder body 1, the connector assembly 3 includes a connector 31 sleeved on the outer end of the connector tube 13, a dialysis tube 32 is snapped into the inner end of the connector tube 13, a connector 33 is fixedly connected to one end of the dialysis tube 32, a sealing ring 34 is fixedly connected to the edge of one end of the connector 33, a puncture needle 35 is fixedly connected to one end of the connector 33 near the sealing ring 34, and a connector groove 301 is opened in the inner end of the connector 31. The inner end of 301 is provided with several disinfection sacs 36. The sealing ring 34 is snapped into the inner end of the connector groove 301. The sealing ring 34 is made of medical grade silicone. The tip of the puncture needle 35 corresponds to several disinfection sacs 36. The inner end of the disinfection sacs 36 is filled with disinfectant. The front and back of the connecting ends on both sides of the abdominal binder body 1 are fixedly connected with Velcro 11 and Velcro 2 12 respectively. The bottom end of the disinfection sacs 36 is fixedly connected with sealing plugs 37 distributed in the connector groove 301. The sealing plugs 37 are snapped into sealing frames 38 embedded in the connector groove 301. The waste liquid collection tank 302 is opened in the connector 2 33 near the sealing frame 38.

[0022] Among them, the connector groove 301 and the connector 2 33 are precisely engaged, and the sealing ring 34 is tightly fitted with the inner wall of the connector groove 301 to form a double sealing structure, which effectively prevents the dialysate from leaking; several disinfection sacs 36 are arranged in a ring array in the connector groove 301, and the tip of the puncture needle 35 is precisely aligned with the center of the disinfection sac 36. The disinfection sac 36 is made of medical ruptureable film material, and the disinfectant inside is sterile physiological saline or special medical disinfectant solution, which can quickly achieve sterile treatment at the interface; Furthermore, the dialysis tubes 32 are all disposable medical supplies.

[0023] In use, after completing the connection between the drug storage chamber and the dialysis tubing in Example 1, the abdominal binder body 1 can be worn on the patient's waist and abdomen using Velcro 11 and Velcro 22. The connector 2 33 at the other end of the dialysis tubing 32 is aligned with connector 1 31 of the abdominal binder body 1 and slowly inserted into the connector groove 301. The sealing ring 34 is simultaneously inserted and tightly adheres to the groove wall to achieve a preliminary seal, and the sealing plug 37 is precisely inserted into the sealing frame 38 to form a leak-proof protection. As connector 2 33 is continuously advanced, the tip of the puncture needle 35 precisely punctures all the disinfection sacs 36, and the disinfectant is instantly released and fills the entire connector gap, thoroughly immersing and disinfecting the connector tube 13 port, the dialysis tubing 32 port, and the inner wall of the connector groove 301 at the interface, completely killing potential bacteria. After disinfection, connector 2 33 and connector 1 31 are firmly engaged, and the double seal combined with full-area disinfection greatly reduces the risk of infection at the interface. When the connector is pulled out, the sealing plug 37 is pulled out simultaneously with connector 2 33 but not completely detached. The sealing plug 37 separates from the sealing frame 38. At this time, the residual waste liquid will automatically flow into the waste liquid collection tank 302 to avoid leakage and contamination, thus building a sterile safety barrier for the smooth infusion of dialysis fluid.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A peritoneal dialysis device for nephrology, comprising an abdominal binder body (1) and a peristaltic pump body (21), wherein the abdominal binder body (1) has a fitting surface (10) in the middle, and a connector tube (13) is embedded in the fitting surface (10). Its features are, An auxiliary squeezing assembly (2) is provided on one side of the peristaltic pump body (21). The auxiliary squeezing assembly (2) includes a support plate (22) installed on the outer wall of the peristaltic pump body (21). A cylinder (23) is embedded in the two corner edges of the support plate (22). A clamping frame (24) is fixedly connected to the output end of the cylinder (23). A cylinder (25) is embedded in the middle of the clamping frame (24). A bracket (26) is fixedly connected to the output end of the cylinder (25). A squeezing roller (27) is rotatably engaged at the inner end of the bracket (26). The abdominal binder body (1) is provided with a connector assembly (3) at the front end. The connector assembly (3) includes a connector one (31) sleeved on the outer end of the connector tube (13). A dialysis tube (32) is snapped into the inner end of the connector tube (13). A connector two (33) is fixedly connected to one end of the dialysis tube (32). A sealing ring (34) is fixedly connected to the edge of one end of the connector two (33). A puncture needle (35) is fixedly connected to one end of the connector two (33) near the sealing ring (34). A connector groove (301) is opened in the inner end of the connector one (31). A plurality of disinfection sacs (36) are provided in the inner end of the connector groove (301). A sealing plug (37) distributed in the connector groove (301) is fixedly connected to the bottom end of the disinfection sac (36). A sealing frame (38) embedded in the connector groove (301) is snapped into the sealing frame (38) in the connector two (33). A waste liquid collection tank (302) is opened in the inner end of the connector two (33) near the sealing frame (38).

2. The peritoneal dialysis device for nephrology according to claim 1, characterized in that: The front and back sides of the abdominal binder body (1) are fixedly connected with Velcro 1 (11) and Velcro 2 (12) respectively.

3. The peritoneal dialysis device for nephrology according to claim 1, characterized in that: The top of the support plate (22) has a placement groove (201).

4. A peritoneal dialysis device for nephrology according to claim 3, characterized in that: The diameter of the placement slot (201) is larger than the inner diameter of the clamping frame (24).

5. A peritoneal dialysis device for nephrology according to claim 1, characterized in that: The surface of the extrusion roller (27) is made of medical-grade silicone.

6. The peritoneal dialysis device for nephrology according to claim 1, characterized in that: The sealing ring (34) is engaged at the inner end of the joint groove (301).

7. A peritoneal dialysis device for nephrology according to claim 1, characterized in that: The tip of the puncture needle (35) corresponds to several disinfection sacs (36), and disinfectant is placed inside the disinfection sacs (36).

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