Universal interface terminal for concentrated liquid supply of hemodialysis machine

Abstract

The utility model discloses a universal interface terminal for concentrated liquid supply of a hemodialysis machine, which is characterized by comprising a three-way electromagnetic valve, one of three ways of the three-way electromagnetic valve is connected with a floater pressure reducer, the other two ways are common ends and are connected with the hemodialysis machine, and the three-way electromagnetic valve is in linkage fit with the action of a liquid suction joint of the hemodialysis machine through a magnetically controlled switch. The problems that connection between a middle-large dialysis center concentrated liquid supply system and a dialysis machine connector is complex, the dismounting and replacing workload is large, and time is consumed are solved, and the integrated independent combined connector terminal is simple in structure, high in universality, convenient to assemble, stable, reliable and safe in the using process, easy to operate and capable of being used for a long time through one-time configuration.

Description

TECHNICAL FIELD

[0001] The utility model relates to dialysis equipment technology especially a blood dialysis machine centralized liquid supply general interface terminal. BACKGROUND

[0002] Hemodialysis is one of the safe, easy and widely used blood purification methods.

[0003] Although the development of hemodialysis machines is increasingly mature, and the humanized design of the operation is gradually popularized, as a therapeutic device, the personalization, safety performance and modularization of the treatment design all need to be improved. At present, more and more centralized liquid supply systems are used in large dialysis centers, but there are many brands and models of hemodialysis machines, and the liquid supply interface modes are various, which brings many inconveniences in the connection of the centralized liquid supply system and the hemodialysis machine interface, not only needs to spend a lot of time, and the work intensity is large, and often changes and disassembles the equipment, which has a certain loss, especially the safety hidden danger caused by improper installation or not in place. SUMMARY

[0004] The utility model aims at solving the above problems, providing a blood dialysis machine centralized liquid supply general interface terminal, it has simple operation, controllability, strong universality and the like characteristics.

[0005] The above technical problems of the utility model are mainly solved by the following technical scheme: a blood dialysis machine centralized liquid supply general interface terminal, characterized by: including three-way electromagnetic valve, one of the three ways of three-way electromagnetic valve is connected with float pressure reducer, the other two ways are connected with dialysis machine as public end, and three-way electromagnetic valve is connected with dialysis machine suction connector through magnetic control switch and action linkage cooperation.

[0006] In the foregoing blood dialysis machine centralized liquid supply general interface terminal, as preferred, the magnetic control switch is connected with three-way electromagnetic valve through relay, and the loop where the magnetic control switch and relay are arranged is configured with 12V power supply.

[0007] In the foregoing blood dialysis machine centralized liquid supply general interface terminal, as preferred, the three-way electromagnetic valve, float pressure reducer and each electrical control element constitute an integrated assembly structure.

[0008] In the foregoing blood dialysis machine centralized liquid supply general interface terminal, as preferred, the float pressure reducer is a float valve.

[0009] In the foregoing blood dialysis machine centralized liquid supply general interface terminal, as preferred, the relay is a solid-state relay.

[0010] The technical scheme is characterized in that a three-way electromagnetic valve is designed to switch different passages of a dialysis machine liquid supply mode and a disinfection mode, a float pressure reducer (float valve) is used to reduce and adjust the pressure of the centralized liquid supply transmission, and a magnetic control switch and a dialysis machine liquid suction connector are used to realize linkage and cooperation.

[0011] The movable integrated structure of the device is convenient to assemble on a use site, and can be applied through conventional pipe joints, switch control interfaces, standard sockets and the like to realize terminal interface matching of a centralized liquid supply system of a medium / large dialysis center.

[0012] The float pressure reducer of the device is a float valve, which has the advantages of simple structure, small size, convenient installation and maintenance, safety and reliability, strong automaticity, and intuitive action condition.

[0013] Compared with the prior art, the device has the advantages that the connection between a centralized liquid supply system of a medium / large dialysis center and a dialysis machine interface is simple, the dismounting and replacement workload is small, and the time consumption is low. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the device.

[0015] Figure 2 is a circuit diagram of the device.

[0016] Figure 3 is a pressure reduction liquid supply flow direction diagram of the device.

[0017] Figure 4 is a disinfection and cleaning flow direction diagram of the device.

[0018] In the figure, 1 is a float pressure reducer, 2 is a three-way electromagnetic valve, 3 is a relay, 4 is a magnetic control switch, and 5 is a power supply. DETAILED DESCRIPTION

[0019] The technical scheme of the device will be further specifically described below in combination with the drawings.

[0020] The device is a centralized liquid supply universal interface terminal of a hemodialysis machine, as shown in Figure 1It includes a three-way solenoid valve 2, one of the three ports of the three-way solenoid valve 2 is connected to a float pressure regulator 1, and the other two ports are common terminals connected to the dialysis machine. The float pressure regulator 1 is a float valve. The three-way solenoid valve is linked to the action of the dialysis machine's suction connector via a magnetic control switch 4. The magnetic control switch 4 is connected to the three-way solenoid valve 2 via a relay 3, which is initially a solid-state relay.

[0021] Control circuit such as Figure 2 As shown, it consists of a 12V DC power supply 5, a magnetic control switch 4, a solid-state relay 3, a three-way solenoid valve 2, and an indicator light. The working process is as follows: the magnetic control switch 4 controls the solid-state relay 3 to work based on the position of the permanent magnet. The solid-state relay 3 controls the working state of the three-way solenoid valve 2 based on the on / off state of the magnetic control switch 4. The indicator light shows whether the magnetic control switch 4 is on or off, which can prompt the user to observe whether the terminal is working.

[0022] In this embodiment, the three-way solenoid valve 2, float pressure reducer 1, power supply 5, magnetic switch 4, and other electrical components form a movable integrated structure, which can be used as an independent universal interface terminal component.

[0023] Working principle and application:

[0024] This device reduces the pressure of centralized liquid supply through float pressure reducer 1 (i.e. float valve), and the three-way solenoid valve 2 is responsible for switching between different paths of liquid supply mode and disinfection mode. The magnetic control switch 4 and the dialysis machine suction connector work together in a coordinated manner. The 12V DC power supply 5 and solid-state relay 3 switch the working state of the three-way solenoid valve 2 according to the signal of magnetic control switch 4.

[0025] like Figure 3 As shown, when the device is in liquid supply mode, the indicator light is on, and the concentrate flows into the dialysis machine through the common end of the float pressure reducer 1 and the three-way solenoid valve 2, at which time normal treatment activities can be carried out.

[0026] like Figure 4 As shown, when the device is in the disinfection and cleaning state, the indicator light is off. The disinfection and cleaning solution flows into the dialysis machine through the common end of the three-way solenoid valve 2, without passing through the float pressure reducer 1. Disinfection and cleaning activities can be carried out in this state.

[0027] The above embodiments are illustrative of the present invention and not intended to limit it. Although the present invention has been described in conjunction with preferred embodiments, it should be understood that the present invention is not limited to the preferred embodiments. Those skilled in the art can make various equivalent modifications and substitutions to the technical solutions of the present invention based on its teachings. Therefore, the scope of the present invention should be defined by the claims, and all such equivalent modifications and substitutions fall within the protection scope of the present invention.

Claims

1. A universal interface terminal for centralized fluid supply in a hemodialysis machine, characterized in that: It includes a three-way solenoid valve (2), one of the three ports of the three-way solenoid valve is connected to a float pressure reducer (1), the float pressure reducer (1) is a float valve; the other two ports are common terminals connected to the dialysis machine, and the three-way solenoid valve is linked to the action of the dialysis machine's suction connector via a magnetic control switch (4).

2. The universal interface terminal for centralized fluid supply in hemodialysis machines according to claim 1, characterized in that, The magnetic switch (4) is connected to the three-way solenoid valve (2) via a relay (3), and the circuit containing the magnetic switch and the relay is equipped with a 12V power supply (5).

3. The universal interface terminal for centralized fluid supply in hemodialysis machines according to claim 1, characterized in that, The three-way solenoid valve (2), float pressure reducer (1) and various electrical control components constitute an integrated component structure.

4. The universal interface terminal for centralized fluid supply in hemodialysis machines according to claim 2, characterized in that, The relay (3) is a solid-state relay.

Images