Dead-space-free water supply device for hemodialysis

Abstract

The dead-space-free water supply device for hemodialysis comprises a water supply cavity which is designed to be open in a left-right penetrating mode, the water supply cavity is filled with a filtering membrane, plugs are installed at the two ends of the water supply cavity in a screwed mode through threads, and conveying pipes communicated with the interior of the water supply cavity are installed on the plugs in a communicated mode. A jet device is installed on one side of the bottom of the water supply cavity, a water supply pipe is installed between the jet device and the conveying pipe on one side of the water supply cavity, and a circulation mechanism is installed between the water supply cavity and the water supply pipe. According to the utility model, the circulating mechanism is arranged between the water supply cavity and the water supply pipe, the circulating mechanism intensively sucks a dead cavity in which a water source is frequently accumulated in two reserved spaces in the water supply cavity and the water source in the water supply pipe, and meanwhile, the water source is detected in real time in the intensively sucking process; and the water source is subsequently fed into the foremost end of the water supply cavity again for circulation, so that the problem of dead cavity in the water supply cavity is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to water supply devices, in particular to a dead space-free water supply device for hemodialysis. Background Art

[0002] The dialysis treatment in the hospital requires a large amount of pure water (dialysis water / reverse osmosis water). This pure water is directly involved in the treatment. The quality of the water directly affects the effect of the treatment. The growth of microorganisms and the increase of botulinum toxin in the water will bring danger to the patients in treatment, and in severe cases may cause death. Therefore, the safety of dialysis water supply is the top priority in dialysis treatment. However, there are problems with the water supply device used in hemodialysis in actual use.

[0003] Currently, since the water source in the dialysis water supply device cannot circulate continuously, there will be a large number of dead spaces in the water supply device. After long-term use, there will be contaminated areas in the water supply device, which is very likely to pollute the water source. In addition, the water supply device cannot perform real-time detection of the water source inside it. Utility Model Content

[0004] The purpose of the utility model is to provide a dead space-free water supply device for hemodialysis to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dead space-free water supply device for hemodialysis, comprising a water supply chamber with a through-open design on the left and right sides, the water supply chamber is filled with a filter membrane, and plugs are installed at both ends of the water supply chamber by screwing, and a delivery pipe connected to the water supply chamber is installed on the plug, an ejector is installed on one side of the bottom of the water supply chamber, a water delivery pipe is installed between the ejector and the delivery pipe on one side of the water supply chamber, a circulation mechanism is installed between the water supply chamber and the water delivery pipe, the circulation mechanism is used to circulate water in the water supply chamber and the water delivery pipe to avoid the problem of dead space, and the water source is detected in real time through the circulation mechanism.

[0006] As a further preferred embodiment of the present technical solution, internal threads are provided on both sides of the inner wall of the water supply chamber, the length of the filter membrane is smaller than the length of the water supply chamber, and retaining frames are installed on both sides of the inner wall of the water supply chamber and screwed with the internal threads, and the retaining frames restrict and tighten both sides of the filter membrane in the water supply chamber.

[0007] As a further preferred embodiment of the present technical solution, external threads are provided at the edges on both sides of the outer surface of the water supply chamber, and the plug is installed on the water supply chamber by screwing the threads with the external threads.

[0008] As a further preferred embodiment of the technical solution, a reserved space is formed between the two sides of the water supply cavity and the retaining frame, and two No. 1 circulation pipes are correspondingly connected and penetrated through the two sides of the bottom of the water supply cavity, and the top of the No. 1 circulation pipe is correspondingly connected to the reserved space.

[0009] As a further preferred embodiment of the present technical solution, a No. 2 circulation pipe is installed at the top of the water supply cavity near its input end and connected to the reserved space, and a No. 3 circulation pipe is installed at one side of the bottom of the water supply pipe.

[0010] As a further preferred embodiment of the present technical solution, the circulation mechanism includes a collecting box installed below the water supply chamber, a water quality detector is installed on the top of the collecting box, and the detection probe of the water quality detector is correspondingly extended into the collecting box, an input pipe is connected and installed on one side of the collecting box, and an output pipe is connected and installed on the other side of the collecting box, the input pipe is connected to two No. 1 circulation pipes and No. 3 circulation pipes through pipelines respectively to circulate the water source in the water supply chamber out, the output pipe is connected to the No. 2 circulation pipe through a pipeline to circulate the water source in the collecting box into the water supply chamber, and the water source in the water supply chamber and the water delivery pipe is circulated through the centralized leading-out and feeding actions of the input pipe and the output pipe of the collecting box.

[0011] As a further preferred embodiment of the present technical solution, the input pipe and the output pipe are arranged in coordination, and water pumps for pumping water are installed at the ends of the input pipe and the output pipe.

[0012] The utility model provides a dead space-free water supply device for hemodialysis, which has the following beneficial effects:

[0013] (1) The utility model is provided with a circulation mechanism, which centrally pumps the water source in the reserved space into the collecting box through the No. 1 circulation pipe, and uses a water quality detector to perform real-time detection and analysis on the water source in the collecting box. Then, the water source in the collecting box is pumped through the No. 2 circulation pipe to the reserved space at the front end of the water supply chamber through the output pipe to form a circulation, so that the water source in the water supply chamber can achieve continuous circulation flow, avoiding the problem of dead space.

[0014] (2) After entering the water supply chamber, the utility model purifies the water source through the filter membrane, and then delivers the water source to a predetermined position for use via an ejector and a water supply pipe. By clamping the filter membrane on both sides in the water supply chamber with the help of two retaining frames, the problem of displacement of the filter membrane is avoided, and the filter membrane can be subsequently disassembled and maintained by disassembling the plug and the retaining frame, thereby reducing the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the distribution of the ejector and the water supply chamber of the utility model;

[0017] Figure 3 This is a schematic diagram of the distribution of the water supply chamber and the circulation mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of installing the filter membrane of the utility model in the water supply chamber;

[0019] Figure 5 This is a schematic diagram of the distribution of the retainer and the filter membrane of the utility model;

[0020] Figure 6 It is a schematic diagram of the circulation mechanism of the utility model.

[0021] In the figure: 1. Water supply chamber; 2. Filter membrane; 3. Plug; 4. Delivery pipe; 5. Ejector; 6. Water delivery pipe; 7. Internal thread; 8. Retaining frame; 9. External thread; 10. Reserved space; 11. No. 1 circulation pipe; 12. No. 2 circulation pipe; 13. No. 3 circulation pipe; 14. Collecting box; 15. Water quality detector; 16. Input pipe; 17. Output pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 1 and Figure 2 As shown, in this embodiment, a dead space-free water supply device for hemodialysis includes a water supply chamber 1 with a through-open design on the left and right sides, a filter membrane 2 is filled inside the water supply chamber 1, and plugs 3 are installed at both ends of the water supply chamber 1 through threaded engagement, and a delivery pipe 4 connected to the water supply chamber 1 is installed on the plug 3, and a manual valve for controlling the on-off of the delivery pipe 4 is installed at the end of the delivery pipe 4, an ejector 5 is installed on one side of the bottom of the water supply chamber 1, a water delivery pipe 6 is installed between the ejector 5 and the delivery pipe 4 on one side of the water supply chamber 1, and a circulation mechanism is installed between the water supply chamber 1 and the water delivery pipe 6, the circulation mechanism is used to circulate the water source in the water supply chamber 1 and the water delivery pipe 6 to avoid the problem of dead space, and the water source is detected in real time through the circulation mechanism;

[0024] In some disclosures, internal threads 7 are provided on both sides of the inner wall of the water supply chamber 1, the length of the filter membrane 2 is smaller than the length of the water supply chamber 1, and retaining frames 8 are screwed and installed with the internal threads 7 on both sides of the inner wall of the water supply chamber 1. The retaining frame 8 restricts and presses the two sides of the filter membrane 2 in the water supply chamber 1. The retaining frame 8 is a hollow circular ring as a whole. External threads 9 are provided on the edges of both sides of the outer surface of the water supply chamber 1. The plug 3 is screwed and installed on the water supply chamber 1 through threads and the external threads 9. A reserved space 10 is formed between the two sides of the water supply chamber 1 and the retaining frame 8. Two No. 1 circulation pipes 11 are correspondingly connected and penetrated on both sides of the bottom of the water supply chamber 1. The top of the No. 1 circulation pipe 11 is correspondingly connected with the reserved space 10, and a No. 2 circulation pipe 12 is installed at the top of the water supply chamber 1 near its input end and connected with the reserved space 10, and a No. 3 circulation pipe 13 is installed on one side of the bottom of the water supply pipe 6.

[0025] like Figure 3-6 As shown, the circulation mechanism includes a collecting box 14 installed below the water supply chamber 1, a water quality detector 15 is installed on the top of the collecting box 14, and the detection probe of the water quality detector 15 extends into the collecting box 14 accordingly. An input pipe 16 is connected and installed on one side of the collecting box 14, and an output pipe 17 is connected and installed on the other side of the collecting box 14. The input pipe 16 is connected to two No. 1 circulation pipes 11 and No. 3 circulation pipes 13 through pipelines to circulate the water source in the water supply chamber 1 out, and the output pipe 17 is connected to the No. 2 circulation pipe 12 through a pipeline to circulate the water source in the collecting box 14 into the water supply chamber 1. The centralized leading-out and feeding actions of the input pipe 16 and the output pipe 17 of the collecting box 14 enable the water source in the water supply chamber 1 and the water supply pipe 6 to circulate. The input pipe 16 and the output pipe 17 are arranged in coordination, and water pumps for pumping water are installed at the ends of the input pipe 16 and the output pipe 17;

[0026] Among them, when circulating: by providing a circulation mechanism, since the reserved spaces 10 on both sides of the water supply chamber 1 are very likely to form dead cavities, the water source in the reserved space 10 is centrally pumped into the collecting box 14 through the No. 1 circulation pipe 11, and at the same time, the water source in the collecting box 14 is detected and analyzed in real time by the water quality detector 15, so that the staff can know the water quality status in real time. After that, the water source in the collecting box 14 is pumped through the No. 2 circulation pipe 12 through the output pipe 17 to the reserved space 10 at the front end of the water supply chamber 1 to form a circulation, so that the water source in the water supply chamber 1 can achieve continuous circulation flow, avoiding the problem of dead cavity.

[0027] The utility model provides a dead space-free water supply device for hemodialysis, and the specific working principle is as follows: the water source used for dialysis is introduced through the delivery pipe 4 on one side of the water supply chamber 1, and the water source is purified by the filter membrane 2 after entering the water supply chamber 1, and then the water source is sent to a predetermined position for use through the ejector 5 and the water delivery pipe 6, and the problem of deviation of the filter membrane 2 is avoided by clamping and limiting the filter membrane 2 on both sides in the water supply chamber 1 with the help of two retaining frames 8, and the subsequent disassembly and maintenance of the filter membrane 2 can be achieved by disassembling the plug 3 and the retaining frame 8, thereby reducing the maintenance difficulty, and at the same time, a circulation mechanism is installed between the water supply chamber 1 and the water delivery pipe 6, and the circulation mechanism centrally sucks the dead space where water source often accumulates in the two reserved spaces 10 in the water supply chamber 1 and the water source in the water delivery pipe 6, and at the same time, the water source is detected in real time during the centralized suction process, and the water source is subsequently sent to the front end of the water supply chamber 1 again for circulation, so that there is no dead space problem in the water supply chamber 1.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dead space-free water supply device for hemodialysis, comprising a water supply chamber (1) with a through-open design on the left and right sides, the water supply chamber (1) is filled with a filter membrane (2), and plugs (3) are installed at both ends of the water supply chamber (1) by screwing, and a delivery pipe (4) connected to the water supply chamber (1) is installed on the plug (3), an ejector (5) is installed on one side of the bottom of the water supply chamber (1), and a water delivery pipe (6) is installed between the ejector (5) and the delivery pipe (4) on one side of the water supply chamber (1), characterized in that: A circulation mechanism is installed between the water supply chamber (1) and the water supply pipe (6), and is used to circulate water in the water supply chamber (1) and the water supply pipe (6) to avoid the problem of dead space, and to detect the water source in real time through the circulation mechanism.

2. A dead space-free water supply device for hemodialysis according to claim 1, characterized in that: Internal threads (7) are provided on both sides of the inner wall of the water supply chamber (1); the length of the filter membrane (2) is smaller than the length of the water supply chamber (1); and retainers (8) are screwed together with the internal threads (7) on both sides of the inner wall of the water supply chamber (1); the retainers (8) restrict and press the two sides of the filter membrane (2) in the water supply chamber (1).

3. The dead space-free water supply device for hemodialysis according to claim 1, characterized in that: External threads (9) are provided at the edges of both sides of the outer surface of the water supply chamber (1), and the plug (3) is installed on the water supply chamber (1) by screwing the threads together with the external threads (9).

4. The dead space-free water supply device for hemodialysis according to claim 1, characterized in that: A reserved space (10) is formed between the two sides of the water supply chamber (1) and the retaining frame (8), and two No. 1 circulation pipes (11) are correspondingly connected and penetrated through the two sides of the bottom of the water supply chamber (1), and the top of the No. 1 circulation pipe (11) is correspondingly connected to the reserved space (10).

5. The dead space-free water supply device for hemodialysis according to claim 1, characterized in that: A No. 2 circulation pipe (12) is installed at the top of the water supply chamber (1) near its input end and connected to the reserved space (10), and a No. 3 circulation pipe (13) is installed at one side of the bottom of the water delivery pipe (6).

6. A dead space-free water supply device for hemodialysis according to any one of claims 1 to 5, characterized in that: The circulation mechanism comprises a collecting box (14) installed below the water supply chamber (1), a water quality detector (15) installed on the top of the collecting box (14), the detection probe of the water quality detector (15) correspondingly extending into the collecting box (14), an input pipe (16) connected to one side of the collecting box (14), and an output pipe (17) connected to the other side of the collecting box (14), the input pipe (16) is connected to two No. 1 circulation pipes (11) and No. 3 circulation pipes (13) through pipelines to circulate and lead out the water source in the water supply chamber (1), the output pipe (17) is connected to the No. 2 circulation pipe (12) through a pipeline to circulate and send the water source in the collecting box (14) into the water supply chamber (1), and the water source in the water supply chamber (1) and the water supply pipe (6) can achieve circulation through the centralized leading-out and sending-in actions of the input pipe (16) and the output pipe (17) of the collecting box (14).

7. A dead space-free water supply device for hemodialysis according to claim 6, characterized in that: The input pipe (16) and the output pipe (17) are arranged in coordination, and water pumps for pumping water are installed at the ends of the input pipe (16) and the output pipe (17).

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