Dialysate temperature measurement system, method and temperature control system, hemodialysis machine

Abstract

The application discloses a dialysate temperature measuring system and method, a temperature control system and a hemodialysis machine, and relates to the technical field of dialysis. The system comprises: a first temperature sensor configured to detect a first dialysate temperature in a dialysate pipeline of the hemodialysis machine when the hemodialysis machine is working; a second temperature sensor configured to synchronously detect a dialysate waste temperature in a dialysate waste pipeline of the hemodialysis machine with the first temperature sensor when the hemodialysis machine is working; and a computing device connected to the first temperature sensor and the second temperature sensor, configured to obtain a second dialysate temperature in a dialyzer according to the first dialysate temperature and the dialysate waste temperature. Thus, the dialysate temperature in the dialyzer can be obtained without distortion, and accurate dialysate temperature control can be realized.

Description

Technical Field

[0001] This invention relates to the field of dialysis technology, and in particular to a dialysate temperature measurement system, method and temperature control system, and a hemodialysis machine. Background Technology

[0002] A crucial function of hemodialysis machines in related technologies is the online preparation of dialysate to meet specific requirements, including flow rate, temperature, and conductivity. The precision of dialysate temperature control significantly impacts treatment safety; typically, the temperature of the dialysate entering the dialyzer needs to be maintained at around 37°C. To obtain dialysate at the appropriate temperature, a temperature sensor installed inside the hemodialysis machine measures the temperature of the dialysate in the tubing and sends this data back to the heating system for temperature control.

[0003] However, in the hemodialysis machines of the relevant technologies, heat loss occurs during the process of dialysate flowing from the inside of the machine to the dialyzer, which makes it impossible to accurately measure the dialysate temperature at the dialyzer, thus affecting the accuracy of dialysate temperature control. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in the related art. Therefore, the first objective of this invention is to provide a dialysate temperature measurement system to obtain the dialysate temperature in an undistorted dialyzer, thereby achieving accurate dialysate temperature control.

[0005] The second objective of this invention is to provide a method for measuring the temperature of dialysate.

[0006] The third objective of this invention is to provide a temperature control system.

[0007] The fourth objective of this invention is to provide a hemodialysis machine.

[0008] To achieve the above objectives, a first aspect of the present invention provides a dialysate temperature measurement system, comprising: a first temperature sensor configured to detect a first dialysate temperature in the dialysate line of the hemodialysis machine when the hemodialysis machine is operating; a second temperature sensor configured to synchronously detect the dialysis waste fluid temperature in the dialysis waste fluid line of the hemodialysis machine when the hemodialysis machine is operating, in conjunction with the first temperature sensor; and a computing device connected to the first temperature sensor and the second temperature sensor, the computing device being used to obtain a second dialysate temperature in the dialyzer based on the first dialysate temperature and the dialysis waste fluid temperature.

[0009] In addition, the dialysate temperature measurement system according to embodiments of the present invention may also have the following additional technical features: According to one embodiment of the present invention, the first temperature sensor is installed at a first preset position, and the second temperature sensor is installed at a second preset position. The first preset position is configured such that the sensing part of the first temperature sensor is in contact with the dialysate pipeline, and the second preset position is configured such that the sensing part of the second temperature sensor is in contact with the dialysate waste pipeline.

[0010] According to one embodiment of the present invention, both the first temperature sensor and the second temperature sensor are infrared temperature sensors.

[0011] According to the dialysis fluid temperature measurement system of the present invention, by acquiring the first dialysis fluid temperature before the dialysis fluid flows through the dialyzer and the dialysis waste fluid temperature after flowing through the dialyzer, the computing device can compensate for the distortion of the first dialysis fluid temperature caused by heat loss between the temperature acquisition point of the first temperature sensor and the dialyzer based on the dialysis waste fluid temperature, thereby obtaining the undistorted second dialysis fluid temperature.

[0012] To achieve the above objectives, a second aspect of the present invention provides a method for measuring dialysate temperature. The method is used in the aforementioned dialysate temperature measurement system. The method includes: when the hemodialysis machine is operating, simultaneously acquiring a first dialysate temperature in the dialysate line of the hemodialysis machine and a dialysis waste liquid temperature in the dialysis waste liquid line of the hemodialysis machine; and obtaining a second dialysate temperature in the dialyzer based on the first dialysate temperature and the dialysis waste liquid temperature.

[0013] In addition, the dialysate temperature measurement method according to embodiments of the present invention may also have the following additional technical features: According to one embodiment of the present invention, obtaining the second dialysate temperature in the dialyzer based on the first dialysate temperature and the dialysate waste temperature includes: obtaining the dialysate flow rate in the dialysate pipeline and obtaining the dialysate waste flow rate in the dialysate waste pipeline; obtaining the second dialysate temperature based on the first dialysate temperature, the dialysate waste temperature, the dialysate flow rate, and the dialysate waste flow rate.

[0014] According to one embodiment of the present invention, the temperature of the second dialysate is obtained according to the following formula: , in, The temperature of the second dialysate. This refers to the dialysate flow rate. To determine the flow rate of dialysis waste liquid, The temperature of the first dialysate. The temperature of the dialysis waste liquid. As the first calculation parameter, This is the second calculation parameter.

[0015] According to one embodiment of the present invention, obtaining the second dialysate temperature in the dialyzer based on the first dialysate temperature and the dialysis waste liquid temperature includes: averaging the first dialysate temperature and the dialysis waste liquid temperature to obtain the second dialysate temperature.

[0016] According to one embodiment of the present invention, the temperature of the second dialysate is obtained according to the following formula: , in, The temperature of the second dialysate. This refers to the dialysate flow rate. To determine the flow rate of dialysis waste liquid, The temperature of the first dialysate. The temperature of the dialysis waste liquid is [temperature value missing].

[0017] The dialysate temperature measurement method according to embodiments of the present invention can obtain accurate dialysate temperature.

[0018] To achieve the above objectives, a third aspect of the present invention provides a temperature control system, including a control device, a heating device, and the aforementioned dialysate temperature measurement system. The control device is connected to the heating device and a computing device in the dialysate temperature measurement system. The heating device is configured to heat the dialysate in the dialysate tubing of a hemodialysis machine according to a received control command. The control device generates and sends the control command to the heating device based on a second dialysate temperature obtained from the computing device.

[0019] The temperature control system according to embodiments of the present invention can achieve accurate temperature control.

[0020] To achieve the above objectives, a fourth aspect of the present invention provides a hemodialysis machine, including the temperature control system described above.

[0021] The hemodialysis machine according to embodiments of the present invention can achieve accurate temperature control.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a dialysate temperature measurement system according to an embodiment of the present invention; Figure 2 This is a flowchart of the dialysate temperature measurement method according to an embodiment of the present invention; Figure 3This is a structural block diagram of the temperature control system according to an embodiment of the present invention; Figure 4 This is a structural block diagram of a hemodialysis machine according to an embodiment of the present invention.

[0024] Figure label: Dialysis fluid temperature measurement system 100; first temperature sensor 101; second temperature sensor 102; hemodialysis machine housing 103; second dialysis fluid pipeline 104; second dialysis waste fluid pipeline 105; dialyzer 106; computing device 107; temperature control system 200; control device 201; heating device 202; hemodialysis machine 10. Detailed Implementation

[0025] Embodiments of the present invention are described below with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described with reference to the accompanying drawings are exemplary and should not be construed as limiting the present invention.

[0026] The following is a reference appendix. Figure 1-4 The present invention describes a dialysate temperature measurement system 100, a dialysate temperature measurement method, a temperature control system 200, and a hemodialysis machine 10.

[0027] In this embodiment of the invention, the dialysate temperature measurement system 100 includes: a first temperature sensor 101 configured to detect the first dialysate temperature in the dialysate line of the hemodialysis machine 10 when the hemodialysis machine 10 is operating; a second temperature sensor 102 configured to detect the dialysis waste liquid temperature in the dialysis waste liquid line of the hemodialysis machine 10 synchronously with the first temperature sensor 101 when the hemodialysis machine 10 is operating; and a computing device 107 connected to the first temperature sensor 101 and the second temperature sensor 102, the computing device 107 being used to obtain the second dialysate temperature in the dialyzer 106 connected to the dialysate line and the dialysis waste liquid line based on the first dialysate temperature and the dialysis waste liquid temperature.

[0028] See Figure 1 The illustrated embodiment, in Figure 1 In the diagram, a circle marked with a "T" is used to indicate the first temperature sensor 101 and the second temperature sensor 102. Both the first temperature sensor 101 and the second temperature sensor 102 are located inside the outer casing 103 of the hemodialysis machine.

[0029] The aforementioned dialysate tubing and dialysis waste tubing are both located inside the hemodialysis machine housing 103. The second dialysate tubing 104 and the second dialysis waste tubing 105 are located outside the hemodialysis machine housing 103. The dialysate tubing can be connected to the second dialysate tubing 104 through the first interface on the hemodialysis machine housing 103, and the dialysis waste tubing can be connected to the second dialysis waste tubing 105 through the second interface on the hemodialysis machine housing 103.

[0030] When the hemodialysis machine 10 is working, see Figure 1 The dialysate enters the dialyzer 106 in the order of dialysate line and second dialysate line 104, and the dialysis waste liquid generated by the dialyzer 106 flows out of the dialyzer 106 in the order of second dialysis waste liquid line 105 and dialysis waste liquid line.

[0031] The second dialysis fluid line 104, the second dialysis waste fluid line 105, and the dialyzer 106 are all disposable products. The second dialysis fluid line 104 and the second dialysis waste fluid line 105 are both connected to the hemodialysis machine 10. After the dialyzer 106 is connected to the second dialysis fluid line 104 and the second dialysis waste fluid line 105, the hemodialysis machine 10 can start working, that is, the hemodialysis machine 10 enters the working state to treat the patient.

[0032] At this time, the first temperature sensor 101 collects the first dialysate temperature in the dialysate pipeline, and the second temperature sensor 102 collects the temperature of the dialysis waste liquid in the dialysis waste liquid pipeline synchronously with the first temperature sensor 101.

[0033] Therefore, by acquiring the temperature of the first dialysate before it flows through the dialyzer 106 and the temperature of the dialysis waste liquid after it flows through the dialyzer 106, the computing device 107 can compensate for the distortion of the first dialysate temperature caused by heat loss between the temperature acquisition point of the first temperature sensor 101 and the dialyzer 106 based on the dialysis waste liquid temperature, thereby obtaining the undistorted second dialysate temperature.

[0034] exist Figure 1 In the first preset position, the first temperature sensor 101 is installed at the first preset position, and the second temperature sensor 102 is installed at the second preset position. The first preset position is configured such that the sensing part of the first temperature sensor 101 is in contact with the dialysate pipeline, and the second preset position is configured such that the sensing part of the second temperature sensor 102 is in contact with the dialysate waste pipeline.

[0035] In order to accurately measure the temperature of the first dialysate and the temperature of the dialysis waste liquid, the sensing part of the first temperature sensor 101 can be located inside the dialysate pipeline, and the sensing part of the second temperature sensor 102 can be located inside the dialysis waste liquid pipeline.

[0036] Specifically, both the first temperature sensor 101 and the second temperature sensor 102 can be PT1000 temperature sensors. Interfaces can be reserved on both the dialysate pipeline and the dialysate waste pipeline. The sensing parts of the first temperature sensor 101 and the second temperature sensor 102 can enter the pipeline through the reserved interface to sense the temperature of the liquid.

[0037] Optionally, the first preset position can be configured such that the sensing part of the first temperature sensor 101 contacts the outer surface of the dialysis fluid pipeline, and the second preset position can be configured such that the sensing part of the second temperature sensor 102 contacts the outer surface of the dialysis waste fluid pipeline.

[0038] At this time, both the first temperature sensor 101 and the second temperature sensor 102 can be contact thermocouples, with the sensing part attached to the outer surface of the pipeline.

[0039] Optionally, both the first temperature sensor 101 and the second temperature sensor 102 can be configured as infrared temperature sensors.

[0040] At this time, the first temperature sensor 101 and the second temperature sensor 102 do not need to be in contact with the dialysis fluid pipeline and the dialysis waste fluid pipeline, and can be at a certain distance.

[0041] In summary, the dialysate temperature measurement system 100 of this embodiment of the invention obtains the first dialysate temperature before the dialysate flows through the dialyzer 106 and the dialysate waste temperature after flowing through the dialyzer 106, so that the computing device 107 can compensate for the distortion of the first dialysate temperature caused by heat loss between the temperature acquisition point of the first temperature sensor 101 and the dialyzer 106 based on the dialysate waste temperature, thereby obtaining the undistorted second dialysate temperature.

[0042] Furthermore, this invention proposes a method for measuring the temperature of dialysate.

[0043] Figure 2 This is a flowchart of the dialysate temperature measurement method according to an embodiment of the present invention.

[0044] In this embodiment of the invention, the dialysate temperature measurement method is used in the dialysate temperature measurement system 100 in the above embodiment.

[0045] like Figure 2 As shown, the method for measuring the temperature of the dialysate includes: S11, When the hemodialysis machine 10 is working, the temperature of the first dialysate in the dialysate line of the hemodialysis machine 10 and the temperature of the dialysis waste liquid in the dialysis waste liquid line of the hemodialysis machine 10 are acquired simultaneously.

[0046] S12, the temperature of the second dialysate in the dialyzer 106 is obtained based on the temperature of the first dialysate and the temperature of the dialysis waste liquid.

[0047] In some embodiments of the present invention, the above-mentioned method of obtaining the second dialysate temperature in dialyzer 106 based on the first dialysate temperature and the dialysate waste temperature includes: obtaining the dialysate flow rate in the dialysate pipeline and obtaining the dialysate waste flow rate in the dialysate waste pipeline; and obtaining the second dialysate temperature based on the first dialysate temperature, the dialysate waste temperature, the dialysate flow rate, and the dialysate waste flow rate.

[0048] It should be noted that the above-mentioned steps of obtaining the flow rate of the dialysate in the dialysate line and obtaining the flow rate of the dialysis waste liquid in the dialysis waste liquid line can be performed synchronously with the steps of obtaining the first dialysate temperature in the dialysate line of the hemodialysis machine 10 and the dialysis waste liquid temperature in the dialysis waste liquid line of the hemodialysis machine 10.

[0049] The above-mentioned method of obtaining the second dialysate temperature based on the first dialysate temperature, the dialysate waste temperature, the dialysate flow rate, and the dialysate waste flow rate may include: acquiring first historical data of the hemodialysis machine 10 at a first historical moment and second historical data at a second historical moment, wherein the first historical data includes the first historical dialysate temperature in the dialysate line, the second historical dialysate temperature in the second dialyzer, the first ambient temperature of the environment where the hemodialysis machine 10 is located, and the historical dialysate flow rate in the dialysate line; the second historical data includes the historical dialysate waste temperature in the dialysate waste line, the third historical dialysate temperature in the third dialyzer, the second ambient temperature of the environment where the hemodialysis machine 10 is located, and the historical dialysate waste flow rate in the dialysate waste line; obtaining a first calculation parameter based on the first historical data, and obtaining a second calculation parameter based on the second historical data; and obtaining the second dialysate temperature based on the first dialysate temperature, the dialysate waste temperature, the dialysate flow rate, the dialysate waste flow rate, the first calculation parameter, and the second calculation parameter.

[0050] The first and second calculation parameters can be obtained from the following formula: , , in, The first historical dialysate temperature, The second historical dialysate temperature, The third historical dialysate temperature, For historical dialysis waste liquid temperature, The first ambient temperature, The second ambient temperature, Historical dialysis fluid flow rate Historical dialysis waste fluid flow rate As the first calculation parameter, This is the second calculation parameter.

[0051] The first historical moment and the second historical moment mentioned above are both moments before step S11. At the first historical moment and the second historical moment, a third temperature sensor may also be set to detect the temperature of the dialysate in the dialyzer 106.

[0052] In other words, step S11 above refers to a moment in the process of the hemodialysis machine 10 treating the patient, while the first historical moment and the second historical moment mentioned above refer to moments before the process of the hemodialysis machine 10 treating the patient, corresponding to step S11. Measurements are taken by performing dialysis treatment in a specific environment. , , , , , , , Then, the first calculation parameter a and the second calculation parameter b are calculated by substituting them into the above calculation formula, and stored in the hemodialysis machine 10 for temperature calculation.

[0053] The first and second historical moments mentioned above can be the same or different moments. The flow rate of dialysate in the dialysate tubing and the flow rate of dialysis waste fluid in the dialysis waste fluid tubing can be directly read by the hemodialysis machine 10. The second and third dialyzers mentioned above can be the same dialyzer.

[0054] The aforementioned first historical moment and the aforementioned second historical moment can be the moment before each treatment by the hemodialysis machine 10, or a fixed interval, that is, the hemodialysis machine 10 updates the aforementioned first calculation parameter a and second calculation parameter b at a fixed time interval, or a moment during the production stage of the hemodialysis machine 10.

[0055] The temperature of the second dialysate can be obtained using the following formula: , in, The temperature of the second dialysis solution. This refers to the dialysate flow rate. To determine the flow rate of dialysis waste liquid, The temperature of the first dialysis solution. For the temperature of dialysis waste liquid, As the first calculation parameter, This is the second calculation parameter.

[0056] This allows for precise measurement of the temperature of the second dialysate.

[0057] In some embodiments of the present invention, obtaining the second dialysate temperature in the dialyzer 106 connected to the dialysate line and the dialysis waste line based on the first dialysate temperature and the dialysis waste temperature includes: averaging the first dialysate temperature and the dialysis waste temperature to obtain the second dialysate temperature.

[0058] At this point, the temperature of the second dialysate can be obtained using the following formula: .

[0059] This allows for a simple way to obtain the temperature of the second dialysate, reducing the cost of the computing device 107 and the time required for temperature acquisition and control.

[0060] In some embodiments of the present invention, the temperature of the second dialysate is obtained according to the following formula: , Where c is the first preset weight and d is the second preset weight.

[0061] In some embodiments of the present invention, the second dialysate temperature obtained based on the first dialysate temperature, the dialysate waste temperature, the dialysate flow rate, and the dialysate waste flow rate can be achieved by the following formula: .

[0062] In summary, the dialysate temperature measurement method of this invention compensates for the temperature distortion of the first dialysate caused by heat loss between the temperature acquisition point of the first temperature sensor 101 and the dialyzer 106, thereby obtaining the undistorted second dialysate temperature.

[0063] Furthermore, the present invention proposes a temperature control system 200.

[0064] Figure 3 This is a structural block diagram of the temperature control system 200 according to an embodiment of the present invention.

[0065] like Figure 3 As shown, the temperature control system 200 includes a control device 201, a heating device 202, and the aforementioned dialysate temperature measurement system 100. The control device 201 is connected to the heating device 202 and the computing device 107 in the dialysate temperature measurement system 100. The heating device 202 is configured to heat the dialysate in the dialysate line of the hemodialysis machine 10 according to the received control command. The control device 201 is used to generate and send a control command to the heating device 202 based on the second dialysate temperature obtained by the computing device 107.

[0066] Specifically, after the calculation device 107 calculates the second dialysate temperature, the control device 201 can send a control command to the heating device 202 based on the difference between the second dialysate temperature and the target dialysate temperature value to perform temperature feedback control.

[0067] The heating device 202 can be set in a third preset position, which is configured to allow the heat exchange part of the heating device 202 to contact the dialysate pipeline when the hemodialysis machine 10 is connected to the dialysate pipeline.

[0068] The aforementioned heat exchange section can be the heating element of the heating device 202, or it can be a specially designed heat exchanger.

[0069] The aforementioned third preset position is located inside the outer casing 103 of the hemodialysis machine.

[0070] In summary, the temperature control system 200 of this embodiment can achieve precise temperature control.

[0071] Furthermore, the present invention proposes a hemodialysis machine 10.

[0072] Figure 4 This is a structural block diagram of the hemodialysis machine 10 according to an embodiment of the present invention.

[0073] like Figure 4 As shown, the hemodialysis machine 10 includes the temperature control system 200 described above.

[0074] According to an embodiment of the present invention, the hemodialysis machine 10 can achieve precise temperature control through the temperature control system 200 described above.

[0075] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein can be considered as a ordered list of executable instructions for implementing logical functions, which can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0076] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0077] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] In the description of this specification, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the present invention.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] In this specification, unless otherwise stated, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0081] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0082] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for measuring the temperature of dialysate, characterized in that, The method is used in a dialysate temperature measurement system, the dialysate temperature measurement system comprising: a first temperature sensor configured to detect a first dialysate temperature in the dialysate line of the hemodialysis machine when the hemodialysis machine is operating; a second temperature sensor configured to synchronously detect the dialysis waste fluid temperature in the dialysis waste fluid line of the hemodialysis machine when the hemodialysis machine is operating, in conjunction with the first temperature sensor; and a computing device connected to the first temperature sensor and the second temperature sensor, the computing device being used to obtain a second dialysate temperature in the dialyzer based on the first dialysate temperature and the dialysis waste fluid temperature, the method comprising: When the hemodialysis machine is working, the temperature of the first dialysate in the dialysate line of the hemodialysis machine and the temperature of the dialysis waste liquid in the dialysis waste liquid line of the hemodialysis machine are simultaneously acquired. The temperature of the second dialysate in the dialyzer is obtained based on the temperature of the first dialysate and the temperature of the dialysis waste liquid. The step of obtaining the second dialysate temperature in the dialyzer based on the first dialysate temperature and the dialysate waste temperature includes: Obtain the flow rate of the dialysate in the dialysate line and the flow rate of the dialysis waste liquid in the dialysis waste liquid line; The second dialysate temperature is obtained based on the first dialysate temperature, the dialysis waste liquid temperature, the dialysate flow rate, and the dialysis waste liquid flow rate; The temperature of the second dialysate is obtained according to the following formula: ， in, The temperature of the second dialysate. The dialysate flow rate, The flow rate of the dialysis waste liquid is... The temperature of the first dialysate. The temperature of the dialysis waste liquid. As the first calculation parameter, This is the second calculation parameter.

2. The method for measuring the temperature of dialysate according to claim 1, characterized in that, The first temperature sensor is installed at a first preset position, and the second temperature sensor is installed at a second preset position. The first preset position is configured such that the sensing part of the first temperature sensor is in contact with the dialysis fluid pipeline, and the second preset position is configured such that the sensing part of the second temperature sensor is in contact with the dialysis waste fluid pipeline.

3. The method for measuring the temperature of dialysate according to claim 1, characterized in that, Both the first temperature sensor and the second temperature sensor are infrared temperature sensors.

4. A temperature control system, characterized in that, It includes a control device, a heating device, and a dialysate temperature measurement system, wherein the control device is connected to the heating device and the computing device in the dialysate temperature measurement system; wherein, The heating device is configured to heat the dialysate in the dialysate line of the hemodialysis machine according to the received control command; The control device is used to generate and send the control command to the heating device based on the second dialysate temperature obtained by the computing device. The dialysate temperature measurement system includes: a first temperature sensor configured to detect a first dialysate temperature in the dialysate line of the hemodialysis machine when the hemodialysis machine is operating; a second temperature sensor configured to synchronously detect the dialysis waste fluid temperature in the dialysis waste fluid line of the hemodialysis machine when the hemodialysis machine is operating, in conjunction with the first temperature sensor; and a computing device connected to the first temperature sensor and the second temperature sensor, the computing device being used to obtain a second dialysate temperature in the dialyzer based on the first dialysate temperature and the dialysis waste fluid temperature. The step of obtaining the second dialysate temperature in the dialyzer based on the first dialysate temperature and the dialysate waste temperature includes: Obtain the flow rate of the dialysate in the dialysate line and the flow rate of the dialysis waste liquid in the dialysis waste liquid line; The temperature of the second dialysate is obtained according to the following formula: ， in, The temperature of the second dialysate. The dialysate flow rate, The flow rate of the dialysis waste liquid is... The temperature of the first dialysate. The temperature of the dialysis waste liquid. As the first calculation parameter, This is the second calculation parameter.

5. The temperature control system according to claim 4, characterized in that, The first temperature sensor is installed at a first preset position, and the second temperature sensor is installed at a second preset position. The first preset position is configured such that the sensing part of the first temperature sensor is in contact with the dialysis fluid pipeline, and the second preset position is configured such that the sensing part of the second temperature sensor is in contact with the dialysis waste fluid pipeline.

6. The temperature control system according to claim 4, characterized in that, Both the first temperature sensor and the second temperature sensor are infrared temperature sensors.

7. A hemodialysis machine, characterized in that, Including the temperature control system according to any one of claims 4-6.

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