Peritoneal dialysis solution cyclic heating and filtering integrated device for patients with renal failure

By introducing water bath heating and sterilization components into the peritoneal dialysis fluid handling device, the problems of dialysis fluid temperature control and infection risk have been solved, ensuring catheter stability and improving the dialysis treatment effect and safety for patients with renal failure.

CN121102618APending Publication Date: 2025-12-12GENERAL HOSPITAL OF THE NORTHERN WAR ZONE OF THE CHINESE PEOPLES LIBERATION ARMY
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Patent Information

Application Number
CN202511266091.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Existing peritoneal dialysis fluid handling devices have problems such as difficulty in controlling dialysis fluid temperature, high risk of infection, and unstable catheter insertion in the treatment of patients with renal failure, which affect the treatment effect and safety.

Method used

An integrated device for peritoneal dialysis fluid circulation, heating, and filtration in patients with renal failure was designed, comprising a water bath heating mechanism, a sterilization component, and a dialysis connection component. The device maintains the dialysis fluid temperature through water bath heating, reduces the risk of infection through ultraviolet sterilization, and stabilizes the cannula connection through a clamping structure.

Benefits of technology

This approach enables effective control of the dialysate temperature, reduces the risk of infection, improves catheter stability, and enhances the effectiveness and safety of dialysis treatment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of dialysis treatment, and discloses a renal failure patient peritoneal dialysis fluid circulation heating and filtering integrated device which comprises a dialyzer, a mounting groove is formed in the position, below a heating groove, of the inner wall of the dialyzer, a heating pipe is mounted on the inner wall of the mounting groove, and a plurality of surrounding type flow guide pipes are mounted on the inner wall of the heating groove at equal intervals. A butt joint hopper is fixedly arranged at one end of each surrounding type flow guide pipe, and a partition plate is fixedly installed at one end of the inner wall of the heating groove. Dialysate flows in the surrounding type flow guide pipes, the flowing distance of the dialysate and the retention time of the dialysate in the heating groove are both increased, and enough time is provided for temperature rise; the heated dialysate enters the other end of the inner wall of the heating groove through the through holes in the partition plate and is discharged, the dialysate is guided into the abdomen of the patient through the dialysis connecting assembly for dialysis treatment, the dialysate can be kept at the temperature close to the body temperature of the patient for dialysis, redundant materials of the kidney of the renal failure patient can be more quickly dialyzed and filtered out, and the treatment efficiency is improved. And the dialysis treatment effect is improved.
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Description

Technical Field

[0001] This invention belongs to the technical field of dialysis treatment, and specifically relates to an integrated device for circulating, heating and filtering peritoneal dialysis fluid for patients with renal failure. Background Technology

[0002] Kidney failure is a serious kidney disease characterized by a decline or severe impairment of kidney function, leading to a syndrome of metabolic disorders. Kidney failure can be divided into two types: acute kidney injury and chronic kidney failure. Acute kidney injury refers to a clinical syndrome caused by a rapid decline in kidney function over a short period due to various etiologies. Chronic kidney failure is the common outcome of various kidney diseases progressing to a later stage. Common causes of acute kidney injury include surgery and tumors; the main causes of chronic kidney failure include diabetes and hypertension. Treatment for kidney failure typically involves dialysis, which uses a concentration gradient to exchange components such as water, urea, and creatinine from the kidneys, thereby reducing the burden on the kidneys. This method can also be considered a form of kidney filtration. With the development of modern medical technology, the functionality of dialysis devices is constantly being improved, making treatment more convenient.

[0003] However, existing peritoneal dialysis fluid handling devices still have the following drawbacks in the treatment of patients with renal failure:

[0004] 1. When performing peritoneal dialysis on patients with renal failure, the existing dialysis fluid handling equipment requires the dialysis fluid to be kept at a temperature close to that of the patient's body temperature in order to ensure that excess components in the kidneys are effectively exchanged. However, during the dialysis conduction process, ordinary operating devices do not have the function of heating the dialysis fluid, or some devices do not heat the dialysis fluid for a long enough time, resulting in the temperature not reaching the ideal range. Since dialysis needs to be continued, this leads to insufficient dialysis exchange and affects the treatment effect.

[0005] 2. Existing dialysis fluid handling devices do not have the function of disinfecting dialysis fluid during the introduction of dialysis fluid. Directly introducing packaged dialysis fluid into the patient's body through the device may cause risks such as infection and reduce the safety of dialysis.

[0006] 3. In the use of ordinary integrated dialysis fluid devices, the heated and sterilized dialysis fluid is usually directly inserted into the patient's abdomen through a cannula. During this process, there is no reinforcement or support function for the insertion area. Prolonged use and the patient's body shaking during treatment can easily cause the cannula to fall off, thereby reducing the protective performance of the device.

[0007] Therefore, it is necessary to invent an integrated device for circulating, heating, and filtering peritoneal dialysis fluid for patients with renal failure to solve the above problems. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides an integrated device for circulating, heating, and filtering peritoneal dialysis fluid for patients with renal failure, thereby resolving the issues raised in the background section.

[0009] To achieve the above objectives, the present invention provides the following technical solution: an integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure, comprising a dialysis unit, an inlet pipe and an outlet, characterized in that: the dialysis unit has a water bath heating mechanism, a sterilization component and a dialysis connection component distributed inside and outside, wherein the inlet pipe is fixedly installed on the top of the dialysis unit and the outlet is opened at the upper edge of one side of the dialysis unit;

[0010] The water bath heating mechanism includes a heating tank at one end of the inner wall of the dialyzer, with the inner walls of both ends of the inlet pipe communicating with the inner wall of the heating tank. The inner wall of one end of the drain outlet is also communicating with the inner wall of the heating tank. An installation groove is provided below the heating tank on the inner wall of the dialyzer. A heating pipe is installed on the inner wall of the installation groove. Multiple circumferential guide pipes are installed at equal intervals on the inner wall of the heating tank. Multiple first guide pipes are inserted and connected at equal intervals on one side of the top of the dialyzer. A docking bucket is fixedly provided at one end of each circumferential guide pipe, and the inner wall of one end of each first guide pipe passes through the inner wall of the dialyzer and communicates with the inner wall of each docking bucket. A partition is fixedly installed at one end of the inner wall of the heating tank. Multiple through holes are opened at equal intervals on one side of the partition, and the inner wall of one end of each circumferential guide pipe communicates with the inner wall of each through hole.

[0011] Preferably, the dialyzer has multiple connection holes at equal intervals on one side, and the inner wall of one end of each connection hole is connected to the inner wall of one end of the heating tank.

[0012] Preferably, the top of the dialysis machine is provided with water inlets below both ends of the water inlet pipe, and the inner wall of the drain outlet is connected with a sealing plug.

[0013] Preferably, the sterilization component includes two support frames fixed on the other side of the dialyzer, and a circulation tank is fixedly provided on the top of the two support frames, and a through groove is provided on the top of the circulation tank.

[0014] Preferably, a sealing cap is hinged to one side of the inner wall of the channel, and multiple ultraviolet germicidal lamps are installed at equal intervals on one side of the sealing cap, and an inlet pipe is inserted and connected to one end of the circulation tank.

[0015] Preferably, a mounting frame is installed on one side of the dialyzer, and a connecting tube is fixedly provided on one side of the mounting frame. Multiple second conduits are inserted and connected to the top of the connecting tube, and the inner wall of one end of each second conduit is connected to the inner wall of each connecting hole.

[0016] Preferably, the dialysis connection assembly includes a docking plate that is inserted and installed at the middle of the bottom of the connecting tube. A needle is fixedly connected to the inner wall of the docking plate, and the inner wall of the needle communicates with the inner wall of the connecting tube.

[0017] Preferably, a connecting rod is inserted and connected to one side of the docking plate, a clamp is fixedly provided at the bottom of the connecting rod, a spring is sleeved on the inner wall of one end of the connecting rod, and the two ends of the spring are fixedly connected to the bottom of the docking plate and the top of the clamp, respectively.

[0018] Preferably, the dialyzer is equipped with a control panel on top, and the heating tube and the ultraviolet germicidal lamp are electrically connected to an external power supply through the control panel.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. This invention utilizes a water bath heating mechanism. Water is injected into the heating tank through the inlet pipe, enough to cover the surrounding guide tube. Dialysis fluid is introduced and flows through the docking hopper into the surrounding guide tube. The heating pipe is activated to heat the water flow in the upper heating tank, raising its temperature to a certain range and maintaining it. This water bath heating increases the internal temperature of the surrounding guide tube, further heating the dialysis fluid. Water bath heating prevents the dialysis fluid from overheating, facilitating temperature control. Simultaneously, the increased flow distance and residence time of the dialysis fluid within the surrounding guide tube allow sufficient time for heating. The heated dialysis fluid then flows through holes in the partition to the other end of the heating tank's inner wall and is discharged. It is then guided into the patient's abdomen via a dialysis connection assembly for dialysis treatment. This maintains the dialysis fluid at a temperature close to the patient's body temperature, allowing excess substances in the kidneys of patients with renal failure to be filtered out more quickly, thus improving the effectiveness of dialysis treatment.

[0021] 2. This invention, by setting up a sterilization component, introduces the dialysate into the circulation tank through the inlet pipe. By rotating the sealing cap, the upper channel is blocked and sealed. In the circulation tank, multiple ultraviolet sterilization lamps on one side of the sealing cap are turned on to sterilize the dialysate. After sterilization, the dialysate is diverted through the first conduit and discharged into various surrounding guide tubes for heating, thereby reducing the risk of infection for patients during dialysis.

[0022] 3. In this invention, the dialysis connection assembly allows the dialysis cannula to be inserted into the inner wall of the docking plate when the cannula is connected. The end of the cannula is held in the clamp. When the clamp is pulled, the spring deforms, generating an elastic force that pulls the connecting rod upward. This, in turn, pulls the clamp holding the end of the cannula upward, ensuring that the cannula is stably connected to the docking plate and communicates with the needle, reducing the risk of dislodgement and thus improving the safety of the device.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the entire invention;

[0026] Figure 2 This is a schematic diagram of the dialysis machine of the present invention from the front.

[0027] Figure 3 This is a schematic diagram of the interior of the dialysis machine of the present invention;

[0028] Figure 4 This is a schematic diagram of the circumferential guide tube of the present invention;

[0029] Figure 5 This is an appendix to the specification of this invention. Figure 3 An enlarged schematic diagram of point A in the middle;

[0030] Figure 6 This is a schematic diagram of the sterilization component of the present invention;

[0031] Figure 7 This is a schematic diagram of the entire connecting pipe of the present invention;

[0032] Figure 8 This is a schematic diagram of the dialysis connection component of the present invention.

[0033] In the diagram: 1. Dialyzer; 2. Inlet pipe; 3. Outlet; 4. Water bath heating mechanism; 401. Heating tank; 402. Mounting groove; 403. Heating tube; 404. Circulating guide tube; 405. First guide tube; 406. Docking hopper; 407. Partition; 408. Through hole; 409. Connection hole; 5. Inlet; 6. Sealing plug; 7. Sterilization assembly; 701. Support frame; 702. Circulation tank; 703. Through groove; 704. Sealing cover; 705. Ultraviolet germicidal lamp; 706. Inlet pipe; 8. Mounting frame; 9. Connecting pipe; 10. Second guide tube; 11. Dialysis connection assembly; 1101. Docking plate; 1102. Needle; 1103. Connecting rod; 1104. Clamp; 1105. Spring; 12. Control panel. Detailed Implementation

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

[0035] This invention provides, for example Figure 1-8 The device shown is an integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure, including a dialyzer 1, an inlet pipe 2 and an outlet 3. The dialyzer 1 is characterized by having a water bath heating mechanism 4, a sterilization component 7 and a dialysis connection component 11 distributed on the inside and outside of the dialyzer 1. The inlet pipe 2 is fixedly installed on the top of the dialyzer 1, and the outlet 3 is opened at the upper edge of one side of the dialyzer 1.

[0036] The water bath heating mechanism 4 includes a heating tank 401 located at one end of the inner wall of the dialyzer 1. The inner walls of both ends of the water inlet pipe 2 are connected to the inner wall of the heating tank 401, and the inner wall of one end of the drain outlet 3 is connected to the inner wall of the heating tank 401. An installation groove 402 is provided on the inner wall of the dialyzer 1 below the heating tank 401. A heating pipe 403 is installed on the inner wall of the installation groove 402. Multiple circumferential guide pipes 404 are installed at equal intervals on the inner wall of the heating tank 401. Multiple first conduits 405 are inserted and connected at equal intervals on one side of the top of the dialyzer 1. One end of each circumferential guide pipe 404 Each is fixedly equipped with a docking hopper 406, and the inner wall of one end of each first conduit 405 passes through the inner wall of the dialyzer 1 and communicates with the inner wall of each docking hopper 406. A partition 407 is fixedly installed at one end of the inner wall of the heating tank 401. Multiple through holes 408 are equally spaced on one side of the partition 407, and the inner wall of one end of each circumferential guide tube 404 communicates with the inner wall of each through hole 408. In the process of guiding the dialysate with multiple circumferential guide tubes 404, the heating speed of the dialysate is not reduced, and the split heating makes the dialysate heating faster and more efficient.

[0037] In use, the sterilized dialysis fluid is introduced into the heating tank 401 through the first conduit 405. Before this, the drain outlet 3 is sealed, and then water is injected into the heating tank 401 through the water inlet pipe 2, with the water volume covering the surrounding guide pipe 404. The dialysis fluid is then introduced and flows through the docking hopper 406 into the surrounding guide pipe 404. Due to the increased flow distance, the dialysis fluid stays in the heating tank 401 for a longer period. The heating pipe 403 in the installation tank 402 is activated to heat the water flow in the upper heating tank 401, raising its temperature to a certain range for heat preservation. Under water bath heating, the dialysis fluid... The internal temperature of the surrounding guide tube 404 increases, thereby heating the dialysate. Heating with a water bath prevents the dialysate temperature from becoming too high, making temperature control easier. At the same time, the dialysate flows in the surrounding guide tube 404, allowing it sufficient time to heat up. The heated dialysate enters the other end of the inner wall of the heating tank 401 through the through hole 408 on the partition 407 and is discharged. It is then introduced into the patient's abdomen through the dialysis connection assembly 11 for dialysis treatment. This allows the dialysate to be kept at a temperature close to the patient's body temperature for dialysis, enabling excess substances in the kidneys of patients with renal failure to be filtered out more quickly, thus improving the effectiveness of dialysis treatment.

[0038] Furthermore, a plurality of connection holes 409 are equally spaced on one side of the dialyzer 1, and the inner wall of one end of each connection hole 409 is connected to the inner wall of one end of the heating tank 401. After the dialysate is heated in a water bath, it enters the other side of the partition 407 and is then discharged through the connection hole 409.

[0039] Furthermore, the top of the dialysis machine 1 is provided with water inlets 5 at both ends of the water inlet pipe 2, and the inner wall of the drain outlet 3 is connected with a sealing plug 6. After the water bath is heated for a period of time, due to the large amount of scale in the water, the sealing plug 6 needs to be removed periodically and the water is discharged through the drain outlet 3 for easy replacement.

[0040] Furthermore, as per the instruction manual... Figure 6 As shown, the sterilization component 7 includes two support frames 701 fixed on the other side of the dialyzer 1. A circulation tank 702 is fixedly installed on the top of the two support frames 701. A through groove 703 is opened on the top of the circulation tank 702. The sealing cover 704 can be rotated open from the through groove 703 later to facilitate the maintenance and replacement of the ultraviolet germicidal lamp 705 on it.

[0041] A sealing cover 704 is hinged to one side of the inner wall of the through-channel 703. Multiple ultraviolet germicidal lamps 705 are installed at equal intervals on one side of the sealing cover 704. An inlet pipe 706 is inserted and connected to one end of the circulation tank 702. Before the dialysate is heated, the dialysate is introduced into the circulation tank 702 through the inlet pipe 706. The sealing cover 704 is rotated to block and seal the through-channel 703 above. The dialysate in the circulation tank 702 is sterilized by turning on the multiple ultraviolet germicidal lamps 705 on one side of the sealing cover 704. After sterilization, the dialysate is diverted through the first conduit 405 and discharged into each of the surrounding guide tubes 404 for heating, reducing the risk of infection for patients during dialysis.

[0042] Furthermore, a mounting frame 8 is installed on one side of the dialysis machine 1, and a connecting tube 9 is fixedly installed on one side of the mounting frame 8. Multiple second catheters 10 are inserted and connected to the top of the connecting tube 9, and the inner wall of one end of each second catheter 10 is connected to the inner wall of each connecting hole 409. After the dialysate is heated, it enters each second catheter 10 through the connecting hole 409, and then enters the connecting tube 9 together to wait for the cannula to be connected before being introduced into the patient's body for dialysis treatment.

[0043] Furthermore, as per the instruction manual... Figure 7-8 As shown, the dialysis connection assembly 11 includes a docking plate 1101 that is inserted and installed at the middle of the bottom of the connecting tube 9. A needle 1102 is fixedly connected to the inner wall of the docking plate 1101, and the inner wall of the needle 1102 communicates with the inner wall of the connecting tube 9. During dialysis treatment, one end of the cannula is clamped inside the docking plate 1101, so that the needle 1102 is inserted into the inner side of the end of the cannula, and then the sterilized and heated dialysis fluid in the connecting tube 9 is slowly introduced into the cannula, and finally introduced into the patient's body through the cannula.

[0044] A connecting rod 1103 is inserted and connected to one side of the docking plate 1101. A clamp 1104 is fixedly installed at the bottom of the connecting rod 1103. A spring 1105 is sleeved on the inner wall of one end of the connecting rod 1103. The two ends of the spring 1105 are fixedly connected to the bottom of the docking plate 1101 and the top of the clamp 1104, respectively. When docking the dialysis cannula, the cannula is clamped in the inner wall of the docking plate 1101, and its end is clamped in the clamp 1104. When the clamp 1104 is pulled, the spring 1105 deforms, thereby generating an elastic force to pull the connecting rod 1103 upward, and then pull the clamp 1104 connected to the end of the cannula upward together, so that the cannula can be stably connected to the docking plate 1101 and communicate with the needle 1102, reducing the risk of dislodgement and thus improving the protection of the device.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated device for circulating, heating, and filtering peritoneal dialysis fluid for patients with renal failure, comprising a dialyzer (1), an inlet pipe (2), and an outlet (3), characterized in that: The dialyzer (1) has a water bath heating mechanism (4), a sterilization component (7) and a dialysis connection component (11) distributed inside and outside. The water inlet pipe (2) is fixedly installed on the top of the dialyzer (1), and the drain outlet (3) is opened at the upper edge of one side of the dialyzer (1). The water bath heating mechanism (4) includes a heating tank (401) located at one end of the inner wall of the dialysis machine (1), and the inner walls at both ends of the water inlet pipe (2) are respectively connected to the inner wall of the heating tank (401). The inner wall at one end of the drain outlet (3) is connected to the inner wall of the heating tank (401). An installation groove (402) is provided on the inner wall of the dialysis machine (1) below the heating tank (401). A heating pipe (403) is installed on the inner wall of the installation groove (402). Multiple circumferential guide pipes (404) are installed at equal intervals on the inner wall of the heating tank (401). The top of the dialysis machine (1) Multiple first conduits (405) are equidistantly connected to one side of the part. Each of the circumferential guide tubes (404) has a docking bucket (406) fixedly provided at one end. The inner wall of one end of each first conduit (405) passes through the inner wall of the dialyzer (1) and communicates with the inner wall of each docking bucket (406). A partition plate (407) is fixedly installed at one end of the inner wall of the heating tank (401). Multiple through holes (408) are equidistantly provided on one side of the partition plate (407). The inner wall of one end of each circumferential guide tube (404) communicates with the inner wall of each through hole (408).

2. The integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure according to claim 1, characterized in that: The dialyzer (1) has multiple connecting holes (409) at equal intervals on one side, and the inner wall of one end of each connecting hole (409) is connected to the inner wall of one end of the heating tank (401).

3. The integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure according to claim 1, characterized in that: The dialysis machine (1) has water inlets (5) at the top of the water inlet pipe (2) and at both ends of the water inlet pipe (2). The inner wall of the drain outlet (3) is connected with a sealing plug (6).

4. The integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure according to claim 1, characterized in that: The sterilization component (7) includes two support frames (701) fixed on the other side of the dialyzer (1), and a circulation tank (702) is fixedly provided on the top of the two support frames (701), and a through groove (703) is provided on the top of the circulation tank (702).

5. The integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure according to claim 4, characterized in that: A sealing cap (704) is hinged to one side of the inner wall of the through groove (703), and multiple ultraviolet germicidal lamps (705) are installed at equal intervals on one side of the sealing cap (704). An inlet pipe (706) is inserted and connected to one end of the circulation tank (702).

6. The integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure according to claim 1, characterized in that: A mounting bracket (8) is installed on one side of the dialysis machine (1). A connecting tube (9) is fixedly provided on one side of the mounting bracket (8). A plurality of second conduits (10) are inserted and connected to the top of the connecting tube (9), and the inner wall of one end of each second conduit (10) is connected to the inner wall of each connecting hole (409).

7. The integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure according to claim 1, characterized in that: The dialysis connection assembly (11) includes a docking plate (1101) inserted and installed at the middle of the bottom of the connecting tube (9). A needle tube (1102) is fixedly connected to the inner wall of the docking plate (1101), and the inner wall of the needle tube (1102) is in communication with the inner wall of the connecting tube (9).

8. The integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure according to claim 7, characterized in that: A connecting rod (1103) is inserted and connected to one side of the docking plate (1101). A clamp (1104) is fixedly provided at the bottom of the connecting rod (1103). A spring (1105) is sleeved on the inner wall of one end of the connecting rod (1103), and the two ends of the spring (1105) are fixedly connected to the bottom of the docking plate (1101) and the top of the clamp (1104), respectively.

9. The integrated device for circulating heating and filtering peritoneal dialysis fluid for patients with renal failure according to claim 5, characterized in that: The dialyzer (1) is equipped with a control panel (12) on top. The heating tube (403) and the ultraviolet germicidal lamp (705) are electrically connected to an external power supply through the control panel (12).