An automatic intermittent body fluid purification device and a body fluid purification control method

Abstract

The application provides an automatic intermittent body fluid purification device and a body fluid purification control method. The device comprises a main controller, a body fluid collection device and a body fluid treatment device. The main controller is used to determine and send a body fluid collection control instruction and a body fluid purification instruction according to an automatic intermittent body fluid purification instruction. The body fluid collection device is used to collect the first body fluid of a user in response to the body fluid collection control instruction, transmit the first body fluid to the body fluid treatment device and send a plurality of monitoring signals of a plurality of sensors. The body fluid treatment device is used to receive and respond to the body fluid purification instruction, control the body fluid processor to treat the first body fluid according to the body fluid purification instruction and return the treated body fluid to the user. The main controller is used to receive the plurality of monitoring signals, control the body fluid collection device to perform a body fluid extraction and discharge action according to the plurality of monitoring signals and control the body fluid treatment device to perform body fluid purification. In this way, the efficiency and safety of blood purification can be realized.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an automatic intermittent body fluid purification device and a body fluid purification control method. Background Technology

[0002] Currently, commonly used hemodialysis techniques in clinical practice include traditional hemodialysis, hemofiltration, and peritoneal dialysis. Most blood purification methods rely on arteriovenous infarction, which may cause additional trauma and pain to patients. Existing fluid therapy devices mostly achieve fluid extraction, treatment, and reinfusion through pumps, valves, and simple tubing. While these devices offer some improvement in optimizing patient experience and enhancing dialysis safety, they lack independent segmented control of the fluid processing and reinfusion ends. This can lead to defects in flow path switching, pressure regulation, and fluid isolation in the fluid processing pathway, thus affecting fluid processing efficiency. Furthermore, the use of pressure sensors for pressure regulation and the start / stop of the pump can easily cause uncontrolled backflow pressure in the patient's blood vessels, further compromising the safety of fluid purification.

[0003] Therefore, how to improve the efficiency of body fluid purification and enhance the safety of patients during body fluid purification is an urgent issue to be addressed. Summary of the Invention

[0004] This application provides an automatic intermittent body fluid purification device and a body fluid purification control method. Through the coordinated control of the routing switch in the body fluid collection device, automatic intermittent body fluid extraction, purification and reinfusion are realized, effectively avoiding the mixing of purified body fluid with untreated body fluid and improving the body fluid purification efficiency. At the same time, through segmented flow channel isolation and pressure regulation, the risk of fluctuation in the patient's vascular pressure is reduced, and the safety of the body fluid purification process is improved.

[0005] In a first aspect, this application provides an automatic intermittent body fluid purification device, comprising: a main controller, a body fluid collection device connected to a user's pre-reserved port, and a body fluid processing device connected to the body fluid collection device; the main controller is communicatively connected to the body fluid collection device and the body fluid processing device; the body fluid collection device includes a first routing switch connected to the pre-reserved port via a first pipeline, and a second routing switch connected to the first routing switch; the body fluid processing device includes a body fluid processor, the input end and output end of which are respectively connected to the second routing switch via a second pipeline and to the first routing switch, wherein: The main controller is configured to receive and respond to an automatic intermittent body fluid purification command; determine a body fluid collection control command and a body fluid purification command based on the automatic intermittent body fluid purification command; send the body fluid collection control command to the body fluid collection device; and send the body fluid purification command to the body fluid processing device. The body fluid collection device is used to receive and respond to the body fluid collection control command; collect the user's first body fluid via the first routing switch according to the body fluid collection control command; transmit the first body fluid to the body fluid processing device via the second routing switch; and send multiple monitoring signals from multiple sensors to the main controller. The body fluid processing device is used to receive and respond to the body fluid purification command; control the body fluid processor to process the first body fluid according to the body fluid purification command to obtain the second body fluid; and transmit the second body fluid to the first routing switch via the second pipeline. The main controller is used to receive the plurality of monitoring signals, control the body fluid collection device to perform body fluid extraction and discharge actions according to the plurality of monitoring signals, and control the body fluid processing device to perform body fluid purification.

[0006] Furthermore, the body fluid collection device also includes an anticoagulant flushing device, a flushing valve, a storage tank, and a third-way switch; the flushing valve is connected to the anticoagulant flushing device; the flushing valve is connected to the third-way switch, the second end of the third-way switch away from the flushing valve is connected to the storage tank, and the storage tank is connected to the second-way switch, wherein: The anticoagulant flushing device includes an anticoagulant flushing fluid, which includes at least one of heparin or physiological saline. The anticoagulant flushing fluid is used for flushing the first pipeline and preventing the first body fluid from condensing. The storage tank is used to control the body fluid collection device to draw in the first body fluid and to control the body fluid processing device to discharge the second body fluid.

[0007] Furthermore, the driving mechanism of the liquid storage tank includes a rotary propulsion mechanism or a push rod propulsion mechanism to extract body fluid and uniformly expel the body fluid.

[0008] Furthermore, the body fluid treatment device also includes a body fluid treatment container and a waste liquid container; the third end of the body fluid processor is connected to the body fluid treatment container, and the fourth end of the body fluid processor is connected to the waste liquid container, wherein: The body fluid processor is used to perform dialysis treatment on body fluids; the dialysis treatment includes at least one of the following: hemofiltration and hemodialysis filtration; The waste liquid container is used to collect waste bodily fluids; The body fluid processing container is filled with dialysis fluid for purifying the user's first body fluid through a dialysis membrane and adding trace elements to the first body fluid.

[0009] Furthermore, an ultraviolet blood irradiation device is also provided on the second pipeline between the first routing switch and the second routing switch. The ultraviolet blood irradiation device is used to irradiate body fluids with ultraviolet light to achieve immune activation and purification.

[0010] Secondly, this application provides an automatic intermittent body fluid purification control method, applied to an automatic intermittent body fluid purification device. The body fluid purification device includes: a main controller, a body fluid collection device connected to a user's pre-reserved port, and a body fluid processing device connected to the body fluid collection device; the main controller is communicatively connected to the body fluid collection device and the body fluid processing device; the body fluid collection device includes a first routing switch connected to the pre-reserved port via a first pipeline, and a second routing switch connected to the first routing switch; the body fluid processing device includes a body fluid processor, the input end and output end of which are respectively connected to the second routing switch via a second pipeline and connected to the first routing switch. The method includes: Receive and respond to an automatic intermittent body fluid purification command; determine a body fluid collection control command and a body fluid purification command based on the automatic intermittent body fluid purification command; send the body fluid collection control command to the body fluid collection device; and send the body fluid purification command to the body fluid purification device. The system controls the body fluid collection device to receive and respond to the body fluid collection control command; collects the user's first body fluid via the first routing switch according to the body fluid collection control command; transmits the first body fluid to the body fluid processing device via the second routing switch; and sends multiple monitoring signals from multiple sensors to the main controller. The body fluid processing device is controlled to receive and respond to the body fluid purification command; the body fluid processor is controlled to process the first body fluid according to the body fluid purification command to obtain the second body fluid; the second body fluid is transmitted to the first routing switch through the second pipeline; The system receives the plurality of monitoring signals and controls the body fluid collection device to perform body fluid extraction and discharge actions based on the plurality of monitoring signals; and controls the body fluid processing device to perform body fluid purification.

[0011] Thirdly, this application provides an electronic device including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing steps in any of the methods of the second aspect of the embodiments of this application.

[0012] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in any method of the second aspect of this application.

[0013] Fifthly, this application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in any method of the second aspect of the embodiments of this application. The computer program product may be a software installation package.

[0014] By implementing the embodiments of this application, the main controller, in coordination with the routing switch, the storage tank, and various sensing components, achieves full-process control of automatic intermittent body fluid collection, purification, and reinfusion. Based on independent routing segmented control and pressure closed-loop regulation, it realizes physical isolation of the flow channel, prevention of body fluid mixing, and stabilization of vascular pressure, avoiding the problems of flow channel switching disorder, pressure regulation imbalance, and cross-mixing of purified body fluid and original body fluid in traditional body fluid therapy devices, thereby improving the efficiency of body fluid purification and the safety of the treatment process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the architecture of an automatic intermittent body fluid purification device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a body fluid treatment device provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of an intermittent body fluid purification device in the context of ultraviolet blood irradiation therapy, as provided in an embodiment of this application. Figure 4 This is a schematic diagram of a scenario where a body fluid purification device, as provided in an embodiment of this application, performs body fluid purification. Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application; Figure 6 This is a flowchart illustrating the execution method of the main controller in an automatic intermittent body fluid purification control method provided in an embodiment of this application. Figure 7This is a block diagram of the functional modules of a control device for automatic intermittent body fluid purification provided in an embodiment of this application. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0018] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0019] It should be understood that the term "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document indicates that the preceding and following related objects are in an "or" relationship. In the embodiments of this application, "multiple" refers to two or more.

[0020] In the embodiments of this application, "at least one item" or its similar expression refers to any combination of these items, including any combination of a single item or a plurality of items. "One or more" means one or more, while "multiple" means two or more. For example, "at least one item" of a, b, or c can represent the following seven cases: a, b, c; a and b; a and c; b and c; a, b, and c. Each of a, b, and c can be an element or a set containing one or more elements.

[0021] In this application, the term "connection" refers to various connection methods, such as direct connection or indirect connection, to achieve communication between devices. This application does not impose any limitations on this.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] The following is an explanation of the relevant terms used in this application: Routing switch: The routing switch is a multi-port directional flow channel switching component that can achieve directional connection and physical isolation of different pipeline ports by switching the internal flow channels on and off.

[0024] Please see Figures 1-4 First, combine Figure 1 The system architecture of an automatic intermittent body fluid purification device according to an embodiment of this application is described below. Figure 1 , Figure 1 This is a schematic diagram of the architecture of an automatic intermittent body fluid purification device 100 provided in an embodiment of this application. The automatic intermittent body fluid purification device 100 includes: a main controller 130, a body fluid collection device 110 connected to a pre-reserved hole of a user 140, and a body fluid processing device 120 connected to the body fluid collection device 110; the main controller 130 is communicatively connected to the body fluid collection device 110 and the body fluid processing device 120; the body fluid collection device 110 includes a first routing switch 111 connected to the pre-reserved hole via a first conduit 117, and a second routing switch 112 connected to the first routing switch 111; the body fluid processing device 120 includes a body fluid processor 121, the input and output terminals of which are respectively connected to the second routing switch 112 via a second conduit 122 and to the first routing switch 111, wherein: The main controller 130 is configured to receive and respond to an automatic intermittent body fluid purification command; determine a body fluid collection control command and a body fluid purification command based on the automatic intermittent body fluid purification command; send the body fluid collection control command to the body fluid collection device 110; and send the body fluid purification command to the body fluid processing device 120. The body fluid collection device 110 is used to receive and respond to the body fluid collection control command; collect the user's first body fluid via the first routing switch 111 according to the body fluid collection control command; transmit the first body fluid to the body fluid processing device 120 via the second routing switch 112; and send multiple monitoring signals from multiple sensors to the main controller 130. The body fluid processing device 120 is used to receive and respond to the body fluid purification command; control the body fluid processor 121 to process the first body fluid according to the body fluid purification command to obtain the second body fluid; and transmit the second body fluid to the first routing switch 111 via the second pipeline 122. The main controller 130 is used to receive the plurality of monitoring signals, control the body fluid collection device 110 to perform body fluid extraction and discharge actions according to the plurality of monitoring signals, and control the body fluid processing device 120 to perform body fluid purification.

[0025] The body fluid collection device 110 also includes an anticoagulant flushing device 116, a flushing valve 115, a pressure sensor 114, a storage tank 113, and level gauges A and B.

[0026] In some possible embodiments, the body fluid collection device 110 further includes an anticoagulant flushing device 116, a flushing valve 115, a storage tank 113, and a third routing switch; the flushing valve 115 is connected to the anticoagulant flushing device 116; the flushing valve 115 is connected to the third routing switch, the second end of the third routing switch away from the flushing valve is connected to the storage tank 113, and the storage tank is connected to the second routing switch, wherein: The anticoagulant flushing device 116 includes an anticoagulant flushing fluid, which includes at least one of heparin or physiological saline. The anticoagulant flushing fluid is used for flushing the first pipeline and preventing the first body fluid from condensing. The storage tank 113 is used to control the body fluid collection device 110 to absorb the first body fluid and to control the body fluid processing device to discharge the second body fluid.

[0027] Among them, the anticoagulant flushing device 116 is a closed fluid supply component, which internally stores anticoagulant flushing fluid suitable for body fluid purification scenarios. The flushing valve is a controllable on / off valve with two stable working states: open and closed. It is mainly used to control the start / stop and flow rate of the anticoagulant flushing fluid supply to avoid unexpected leakage or excessive supply of flushing fluid; the third route switch ( Figure 1(Not marked) is a newly added multi-port directional flow channel switching component, connected to pressure sensor 114 at one end and storage tank 113 at the other. Its core function is to separate the anticoagulant flushing path from the body fluid collection path, preventing cross-flow and mixing of the flushing fluid and the body fluid to be purified. The storage tank 113 adopts a push rod or rotary lever structure, with dual functions of slow and uniform extraction, temporary storage, and pushing out fluid. It is responsible for both quantitatively extracting the first body fluid and directionally discharging the second body fluid. The anticoagulant flushing fluid is a composite type. The special fluid, containing heparin or a single or compound component of physiological saline, can flush impurities from the inner wall of the first pipeline 117, clean residual body fluid in the pipeline, and inhibit the coagulation of the first body fluid. The first pipeline 117 is the main transmission pipeline that runs through the patient's reserved channel, each route switch and the storage tank, and is a common closed channel for body fluid collection, transmission and flushing operations. The first body fluid specifically refers to the original body fluid to be purified collected from the patient's body, and the second body fluid is the purified body fluid that meets the reinfusion standards after being purified by the body fluid processor.

[0028] Specifically, firstly, the outlet port of the anticoagulant flushing device 116 is sealed and connected to the inlet port of the flushing valve 115. The outlet port of the flushing valve 115 is stably connected to the first end of the third routing switch. The second end of the third routing switch, away from the flushing valve, is sealed and connected to the fluid inlet and outlet of the storage tank 113. The other end of the storage tank 113 is then connected to the corresponding port of the second routing switch 112, forming a dual-path composite pipeline structure where "anticoagulant flushing" and "body fluid collection" are independent of each other. Next, before starting the body fluid purification process, or after a single intermittent purification process, the main controller controls the flushing valve 115 to switch to the open state, and simultaneously drives the third route switch to the flushing passage connection mode, temporarily blocking the connection between the third route switch and the body fluid collection end. The anticoagulant flushing fluid inside the anticoagulant flushing device 116 flows out by means of liquid level difference or slight thrust, and enters the storage tank 113 and the first pipeline 117 in sequence through the flushing valve 115 and the third route switch. This thoroughly flushes and cleans the residual impurities and viscous body fluids attached to the inner wall of the pipeline and the inner cavity of the storage tank, preventing the long-term accumulation of impurities from causing pipeline blockage. At the same time, the heparin component in the flushing fluid can be evenly attached to the inner wall of the pipeline to form an anticoagulant protective film, effectively preventing the subsequent collection of blood-like first body fluids from coagulating and clumping, and ensuring smooth and unobstructed flow of body fluids. Then, the formal body fluid collection and purification stage begins. The main controller 130 controls the flushing valve 115 to close completely, cutting off the supply path of the anticoagulant flushing fluid. Simultaneously, the third route switch is switched to the body fluid collection path connection mode, so that the storage tank 113 forms a closed-loop body fluid collection path only with the second route switch 112 and the first route switch 111. The storage tank 113 slowly and evenly draws the first body fluid from the patient's body by pulling the lever and temporarily stores it. After the collection reaches the standard, the temporarily stored first body fluid is pushed evenly to the body fluid processor by pushing the push rod or rotating the lever. After purification, the second body fluid is obtained and transported back to the patient's body along the predetermined circuit. Throughout the process, the third route switch maintains the collection path state, isolating the flushing fluid from the mutual interference of the purification process.

[0029] As can be seen, this embodiment constructs a composite functional structure integrating body fluid collection, purification and discharge, and pipeline flushing and anticoagulation by adding a dedicated anticoagulation flushing module and a third routing switch. The new component works in conjunction with the original storage tank and the second routing switch to achieve both intermittent and precise collection of the first body fluid and directional discharge of the second body fluid, and long-term maintenance of the pipeline and prevention of body fluid coagulation through the dedicated anticoagulation flushing fluid.

[0030] In some possible embodiments, the driving mechanism of the liquid storage tank 113 includes a rotary propulsion mechanism or a push rod propulsion mechanism to extract body fluid and uniformly expel the body fluid.

[0031] The drive mechanism of the storage tank 113 is the power execution component of the storage tank 113. It is a structure that realizes the active extraction and directional discharge of body fluids. Unlike traditional passive storage components that only have temporary storage functions, it can actively regulate the flow rate and transmission state of body fluids. The rotary propulsion mechanism is a spiral drive structure. It realizes power transmission through the internal spiral push rod and the cavity thread, which is a rotary power output form. The push rod propulsion mechanism is a linear drive structure. It directly acts on the piston in the inner cavity of the storage tank through a linear reciprocating push rod, which is a linear power output form. The extraction of body fluids is the process in which the storage tank 113 operates in reverse through the drive mechanism to form a negative pressure in the closed cavity and draw the first body fluid to be purified from the patient into the cavity for temporary storage. The uniform discharge is the process in which the storage tank 113 operates in forward through the drive mechanism to push the temporarily stored body fluid in the cavity to the body fluid processor 121 at a constant and slow rate, which can avoid abnormal pipeline pressure or body fluid impact caused by flow rate fluctuations.

[0032] In some possible embodiments, please refer to Figure 2 , Figure 2 This is a schematic diagram of a body fluid treatment device provided in an embodiment of this application. The body fluid treatment device 120 further includes a body fluid treatment container 124 and a waste liquid container 123; the third end of the body fluid processor 121 is connected to the body fluid treatment container 124, and the fourth end of the body fluid processor 121 is connected to the waste liquid container 123, wherein: The body fluid processor 121 is used for dialysis treatment of body fluids; the dialysis treatment includes at least one of the following: hemofiltration and hemodialysis filtration; The waste liquid container 123 is used to collect waste bodily fluids; The body fluid treatment container 124 is filled with dialysis fluid for purifying the first body fluid of the user through a dialysis membrane and adding trace elements to the first body fluid.

[0033] The body fluid treatment device 120 is a functional unit for purifying body fluids. Through coordinated components, it completes dialysis purification, mass exchange, and waste fluid separation, ensuring effective purification. The body fluid processor 121 is the device's execution component, featuring a built-in semi-permeable dialysis membrane that supports both hemofiltration and hemodiafiltration modes, while also providing solute removal and moisture regulation. The body fluid treatment container 124 is a sealed container filled with dialysis fluid, providing a stable concentration gradient and osmotic pressure for purification. The waste fluid container 123 is a sterile, sealed recovery container used to collect waste body fluids generated during dialysis. To prevent leakage and cross-contamination; the dialysate is a special treatment fluid adapted to the human body's electrolyte environment, which can complete bidirectional material exchange with body fluids through the dialysis membrane. The dialysis membrane is a selective semi-permeable membrane, allowing small molecule waste and water to pass through, while blocking the loss of large molecules such as blood cells and proteins; the first body fluid is the original blood collected from the patient to be purified, and the second body fluid is the body fluid that can be reinfused after purification; trace elements are essential electrolytes and bases such as sodium, potassium, and calcium, used to correct acid-base and electrolyte imbalances in body fluids; waste body fluids are worthless fluids containing metabolic waste and excess water, which must be collected in a sealed and centralized manner.

[0034] Specifically, the third and fourth ends of the body fluid processor 121 are sealed and connected to the body fluid processing container 124 and the waste fluid container 123, respectively. Simultaneously, the input end of the body fluid processor 121 is connected to the storage tank, and the output end is connected to the first routing switch, forming a "purification-separation-reinfusion" pathway. After the storage tank pushes the first body fluid to the body fluid processor at a uniform speed, the processor starts the corresponding dialysis mode. The hemofiltration mode removes small molecule toxins and excess water based on transmembrane pressure. The hemodialysis filtration mode combines diffusion and convection to improve the removal efficiency of medium and large molecule waste. Selective substance exchange is completed throughout the process via the dialysis membrane. Simultaneously, the dialysate in the body fluid processing container 124 passes through the dialysis membrane, replenishing the first body fluid with various essential trace elements and electrolytes, correcting the patient's fluid imbalance. Metabolic waste and excess water in the first body fluid pass back through the dialysis membrane, forming waste body fluid. Subsequently, the waste bodily fluids are collected in a sealed waste fluid container 123 via the fourth end of the processor. After purification and replenishment of trace elements, the first bodily fluid is transformed into the second bodily fluid, which is then transported along the pipeline to the first route switch, ready to be reinfused into the patient's body, thus completing a single intermittent bodily fluid purification process.

[0035] In some possible embodiments, please refer to Figure 3 , Figure 3 This is a schematic diagram of an intermittent body fluid purification device in the context of ultraviolet blood irradiation therapy provided in this application embodiment. An ultraviolet blood irradiation device is also provided on the second pipeline between the first routing switch and the second routing switch. The ultraviolet blood irradiation device is used to irradiate body fluid with ultraviolet light to achieve immune activation and purification.

[0036] Among them, the ultraviolet blood irradiation device is a series-connected physical purification and immune regulation component, which is an auxiliary enhancement module of the body fluid purification device. It uses a medical-grade ultraviolet light source, without chemical additives or the introduction of exogenous substances. Ultraviolet irradiation purification is a physical purification method, which kills pathogenic microorganisms and inactivates harmful inflammatory factors in body fluids based on the biological effects of ultraviolet light of a specific wavelength. Immune activation is the core biological function of this device. It regulates the activity of immune cells in the blood through ultraviolet irradiation, enhances the body's own immune response, and makes up for the functional shortcomings of simple dialysis purification, which only removes metabolic waste.

[0037] Specifically, inside the automated blood collection device, heparin and saline are connected to the storage tank via a flushing valve and a pressure sensor. The other end of the storage tank is connected to a second routing switch, which is connected to a first routing switch via a level gauge B. The first routing switch is connected to the user's minimally invasive pre-reserved channel (pre-reserved hole) via a puncture needle. The ultraviolet blood irradiation device is connected in series in the second pipeline between the first and second routing switches. Its output end is connected to the return port of the first routing switch via a return pipeline. A level gauge A is installed on the return pipeline, and a level gauge B is installed on the pipeline between the second routing switch and the ultraviolet blood irradiation device. All sensing components are communicatively connected to the main controller. During the body fluid collection phase, the first routing switch connects the user to the second routing switch, which in turn connects the first routing switch to the storage tank. The storage tank creates negative pressure by pulling a lever, drawing the user's body fluid to be purified through the first routing switch, level gauge C, and the second routing switch into the storage tank for temporary storage. Level gauges C and B monitor the body fluid levels at the collection and storage tank ends, respectively. A pressure sensor collects the pressure at the storage tank end, providing feedback to the main controller. During the body fluid purification phase, the second routing switch switches to connect the storage tank to the ultraviolet (UV) blood irradiation device, and the first routing switch disconnects the collection path. The storage tank slowly and evenly pushes the temporarily stored body fluid into the UV blood irradiation device by pushing or rotating a lever. As the body fluid flows through the device's inner cavity, medical-grade UV light continuously irradiates at a preset safe dose, inactivating pathogens and activating immune cells. Then, the UV-purified body fluid is returned to the user's body via the return pipeline, monitored by level gauge A, and then returned through the first routing switch, forming a complete intermittent purification cycle.

[0038] As can be seen, this embodiment achieves the dual functions of physical purification and immune activation by adding an ultraviolet blood irradiation device to the second pipeline between the dual-route switches, combined with the intermittent irradiation and multi-sensor monitoring of the automatic blood collector, without changing the original segmented flow channel control logic. At the same time, based on the anticoagulant flushing fluid and flushing valve to ensure the smooth flow of the pipeline, the overall structure is compact and the process is controllable, which is suitable for the clinical needs of ultraviolet blood irradiation therapy and improves the comprehensive effect of body fluid purification and treatment safety.

[0039] For easier understanding, please refer to Figure 4 , Figure 4 This is a schematic diagram of a body fluid purification device provided in this application embodiment for performing body fluid purification. As can be seen, with the patient as the treatment object, a closed-loop body fluid transmission pathway is constructed through the first pipeline and the second pipeline. It is equipped with a storage tank, a heparin and saline (NaCl) storage container, a treatment fluid (such as dialysate) and waste liquid, and integrates physiological monitoring equipment to realize intermittent body fluid purification operations in a clinical environment, and complete the operations of body fluid collection, purification, reinfusion and pipeline maintenance.

[0040] Specifically, firstly, heparin and saline storage containers are suspended on a clinical support frame and connected to a reservoir via tubing. A pressure bulb and gauge are installed below the containers to regulate the infusion pressure and flow rate of the anticoagulant flushing solution. This solution flushes and cleans the first and second tubing lines and the inner wall of the reservoir, removing residual impurities. Simultaneously, the heparin component inhibits the coagulation and clumping of blood-like body fluids, ensuring unobstructed fluid pathways. The treatment fluid (such as dialysis fluid) container is connected to the reservoir and body fluid processor via tubing, providing a dedicated medium for body fluid purification. In dialysis purification mode, the treatment fluid can exchange substances bidirectionally with the body fluid to be purified through a semi-permeable membrane, removing metabolic wastes such as urea and creatinine, as well as excess water, while replenishing the body fluid with essential trace elements such as sodium and potassium. The storage tank, the actuator of the device, employs a push-pull or rotary drive structure. It draws the patient's bodily fluids to be purified from the patient's body using negative pressure and temporarily stores them inside the chamber. The fluids are then slowly and evenly pushed into the purification pathway, achieving intermittent fluid transfer, suitable for the low-flow characteristics of minimally invasive puncture channels. The first tubing is the main collection pathway connecting the patient and the storage tank, used to transport the bodily fluids to be purified to the storage tank for temporary storage. The second tubing is the return pathway connecting the purification module and the patient, used to return the purified and qualified bodily fluids to the patient. The two tubings are physically isolated to prevent cross-mixing of the bodily fluids to be purified and the purified fluids. A waste fluid container, connected to the purification module via tubing, is used to collect waste bodily fluids separated during the purification process, achieving harmless treatment. In addition, physiological monitoring equipment collects the patient's electrocardiogram and other physiological parameters in real time, providing clinical support for the safe control of the purification process.

[0041] As can be seen, by implementing the automatic intermittent body fluid purification device provided in this application embodiment, the main controller controls the body fluid collection device and the body fluid processing device. Based on monitoring signals such as liquid level sensors and pressure sensors, the main controller coordinates and regulates the flow channel switching states of the first and second route switches, dividing the body fluid collection, purification, and reinfusion stages into physically isolated independent pathways. This structurally solves the cross-mixing of body fluids at different stages, ensuring the efficiency of body fluid purification. The storage tank, through a rotary propulsion or push rod propulsion mechanism, completes the intermittent extraction and pushing of the body fluid to be purified with slow and uniform movements. It is compatible with low-flow reserved channels such as minimally invasive indwelling needles for patients, avoiding the pressure impact and damage to the patient's blood vessels caused by continuous pump suction, thus improving treatment safety. This device does not require the creation of arteriovenous fistulas, significantly reducing the risk of complications such as treatment trauma, infection, and vascular fibrosis for patients. The automatic intermittent control logic also improves the clinical adaptability and ease of operation of the device.

[0042] The following is combined with Figure 5 The electronic devices in the embodiments of this application will be described. Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application, such as... Figure 5 As shown, the electronic device 500 includes a processor 510, a memory 520, a communication interface 530, and one or more programs 521. The processor 510 is communicatively connected to the memory 520 and the communication interface 530 via an internal communication bus.

[0043] The one or more programs 521 are stored in the memory 520 and configured to be executed by the processor 510. The one or more programs 521 include instructions for performing any step in the above method embodiments.

[0044] The processor 510 can be a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, cells, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computational functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. The communication unit can be a communication interface, transceiver, transceiver circuitry, etc., and the storage unit can be a memory.

[0045] The memory 520 can be volatile memory or non-volatile memory, or both. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous DRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0046] It is understood that the electronic device 500 may include more or fewer structural elements than those shown in the above block diagram, such as a power module, physical buttons, a Wi-Fi module, a speaker, a Bluetooth module, sensors, a display module, etc., without limitation. It is understood that the electronic device 500 may be equipped with... Figure 1 The system architecture of an automatic intermittent body fluid purification device.

[0047] After understanding the software and hardware architecture of this application, the following will be combined with... Figure 6 An automatic intermittent body fluid purification control method according to an embodiment of this application will be described. Figure 6This is a flowchart illustrating the execution method of the main controller of an automatic intermittent body fluid purification control method provided in this application embodiment. The automatic intermittent body fluid purification control method is applied to a body fluid purification device, which includes: a main controller, a body fluid collection device connected to a user's pre-reserved port, and a body fluid processing device connected to the body fluid collection device. The main controller is communicatively connected to the body fluid collection device and the body fluid processing device. The body fluid collection device includes a first routing switch connected to the pre-reserved port via a first pipeline, and a second routing switch connected to the first routing switch. The body fluid processing device includes a body fluid processor, whose input and output terminals are respectively connected to the second routing switch and the first routing switch via second pipelines. The execution method of the main controller of the automatic intermittent body fluid purification device specifically includes the following steps: Step S610: Receive and respond to an automatic intermittent body fluid purification command; determine a body fluid collection control command and a body fluid purification command based on the automatic intermittent body fluid purification command; send the body fluid collection control command to the body fluid collection device; and send the body fluid purification command to the body fluid purification device.

[0048] Among them, the automatic intermittent body fluid purification command is the control command that triggers the automatic intermittent body fluid purification device to start the periodic body fluid extraction, purification and reinfusion operation, and is used to define the intermittent working cycle, body fluid processing volume and operating mode of the device; the body fluid acquisition control command is the command issued by the main controller to the body fluid acquisition device, which is used to regulate the on and off of the routing switch and the extraction action of the storage tank; the body fluid purification command is the command issued by the main controller to the body fluid purification device, which is used to drive the body fluid processor to perform purification operations such as dialysis, filtration, and irradiation; the main controller is the control unit of the device, which is used for command parsing, signal processing and coordinated scheduling.

[0049] Specifically, the main controller first receives external input or system-generated automatic intermittent body fluid purification commands, and parses and verifies parameters such as the intermittent period, body fluid collection rate, and purification mode in the commands. Then, the main controller breaks down the commands into body fluid collection control commands adapted to the front-end collection stage, and body fluid purification commands adapted to the back-end purification stage. Finally, the main controller synchronously sends the body fluid collection control commands to the body fluid collection device and the body fluid purification commands to the body fluid purification device via a communication link, achieving timing coordination between the collection module and the purification module.

[0050] It should be noted that this device is compatible with various minimally invasive sampling channels, including intravenous catheters, arterial catheters, cerebrospinal fluid catheters, and urinary catheters. Treatment can be initiated without an arteriovenous fistula, thus mitigating the trauma and complication risks associated with traditional dialysis fistulas from the source. Furthermore, the segmented routing controller, with its instruction distribution and dual-route switch, enables independent control of the collection, purification, and reinfusion pathways, avoiding fluid mixing and pressure coupling issues and ensuring the stability and safety of the device's operation.

[0051] Step S620: Control the body fluid collection device to receive and respond to the body fluid collection control command; collect the user's first body fluid via the first routing switch according to the body fluid collection control command; transmit the first body fluid to the body fluid processing device via the second routing switch; and send multiple monitoring signals from multiple sensors to the main controller.

[0052] The body fluid collection control command includes the routing switching sequence of the first and second routing switches, the body fluid collection rate, and the action parameters for the extraction and ejection of the storage tank. This allows the body fluid collection device to intermittently extract and temporarily store body fluid through the patient's pre-drained opening. The body fluid purification command includes the operating parameters of the body fluid processor, which can match the processing needs of different purification scenarios such as hemodialysis and ultraviolet blood irradiation. The first and second routing switches are pipeline selection components that enable directional switching and independent segmented control of the body fluid flow path. The first body fluid is the raw body fluid to be purified collected from the patient, including various types of body fluid such as blood, cerebrospinal fluid, and urine, which are not limited here. The body fluid processing device is a functional unit that performs purification operations such as dialysis, filtration, and ultraviolet irradiation on the raw body fluid. The monitoring signals are real-time operating status signals such as pipeline level and pressure collected by level sensors and pressure sensors.

[0053] Specifically, after the main controller sends a body fluid collection control command to the body fluid collection device, the device responds to the command and completes its working state configuration. It switches the first routing switch to connect the patient's reserved sampling channel with the second routing switch, and switches the second routing switch to connect the first routing switch with the storage tank, forming a closed and independent body fluid collection channel. Then, the body fluid collection device drives the storage tank to perform an extraction action. Through the reserved sampling channels such as intravenous catheters, arterial catheters, cerebrospinal fluid catheters, or urinary catheters on the patient, the first body fluid in the patient's body is sequentially transported to the storage tank via the first and second routing switches for temporary storage. During the body fluid collection process, the device's built-in level sensor monitors the flow of body fluid in the pipeline and the volume of body fluid in the storage tank in real time, while the pressure sensor monitors the internal pressure of the pipeline in real time. The physical parameters collected by the sensors are converted into electrical signals and continuously fed back to the main controller in real time, providing data for the main controller to subsequently adjust the routing switch states and control the storage tank's actions.

[0054] It is evident that by responding to control commands through the body fluid collection device and combining segmented flow channel control with a dual-route switch, independent and intermittent collection of the body fluid to be purified is achieved. This avoids cross-mixing of body fluids between the collection stage and subsequent purification and reinfusion stages at the flow channel level. Multiple sensors monitor and transmit operating signals in real time, which can promptly identify risks such as abnormal pipeline pressure and excessive fluid levels, improving the safety and stability of the body fluid collection process. At the same time, the use of a minimally invasive pre-reserved channel to replace the traditional stoma access significantly reduces the patient's physiological trauma and the risk of complications such as infection and fibrosis, significantly improving the clinical suitability of the body fluid collection process and the safety of treatment.

[0055] Step S630: Control the body fluid processing device to receive and respond to the body fluid purification command; control the body fluid processor to process the first body fluid according to the body fluid purification command to obtain the second body fluid; transmit the second body fluid to the first routing switch through the second pipeline.

[0056] The body fluid purification command is a control command issued by the main controller to the body fluid processing device to set the body fluid processing mode, processing rate, and working sequence. The body fluid processing device is a functional component that uses a body fluid processor as a control unit to complete the body fluid purification operation. The body fluid processor is a replaceable body fluid purification execution component, including a dialysis semi-permeable membrane tube, a filter tube, and an ultraviolet blood irradiation device. The first body fluid is the original body fluid to be purified collected from the patient. The second body fluid is the body fluid that meets the reinfusion standards after purification. The second pipeline is a fluid transmission pipeline that connects the body fluid processor and the second routing switch, and connects the body fluid processor and the first routing switch. The first routing switch is a routing control component that realizes the directional switching of the body fluid collection, processing, and reinfusion channels.

[0057] Specifically, after the main controller sends a body fluid purification command to the body fluid processing device, the device responds to the command and matches the corresponding purification mode. Simultaneously, it coordinates the switching of the first and second routing switches: the second routing switch disconnects from the collection path and connects the storage tank to the input of the body fluid processor; the first routing switch disconnects from the body fluid collection end and connects to the output of the body fluid processor, thus forming an independent, closed body fluid processing channel. Then, the storage tank slowly and evenly pushes the temporarily stored first body fluid into the body fluid processor by pushing or rotating a lever. The body fluid processor executes purification operations according to the command: in hemodialysis mode, it works with the processing fluid to remove metabolic waste and excess water; in filtration and adsorption modes, it directly separates impurities without the need for processing fluid; and in phototherapy mode, it activates immune cells through ultraviolet irradiation to achieve blood purification. After processing, the first body fluid is transformed into a second body fluid that can be safely reinfused. Under the pressure of the storage tank, the second body fluid is transmitted along the second pipeline from the output of the body fluid processor to the first routing switch, and subsequently reinfused into the patient.

[0058] It is evident that by constructing an independent body fluid processing pathway through segmented switching of dual-route switches, the mixing of raw and purified body fluids is structurally avoided, significantly improving the efficiency of body fluid purification. The replaceable body fluid processor makes the device compatible with multiple treatment modes such as dialysis, filtration, and ultraviolet blood irradiation, expanding its clinical applicability. At the same time, the slow and uniform delivery of the reservoir and the independent flow channel design decouple the pressure at the processing end from the patient's vascular pressure, reducing vascular damage caused by pressure fluctuations. The entire process uses minimally invasive pre-reserved channels, eliminating the need for arteriovenous fistulas, greatly reducing the risk of patient treatment trauma and complications such as infection and fibrosis, and improving the safety and adaptability of body fluid purification therapy.

[0059] Step S640: Receive the plurality of monitoring signals, control the body fluid collection device to perform body fluid extraction and discharge actions according to the plurality of monitoring signals; and control the body fluid processing device to perform body fluid purification.

[0060] Among them, body fluid purification is the process by which the body fluid treatment device uses a body fluid processor to perform dialysis, filtration, adsorption, or ultraviolet irradiation on the raw body fluid to obtain qualified body fluid for reinfusion. The monitoring signal is collected and generated by the liquid level sensor and pressure sensor, and is used to reflect the real-time feedback signals of the operating status such as the body fluid level in the first pipeline, the pressure inside the first pipeline, and the storage tank volume; the body fluid extraction and discharge action is the coordinated action of the body fluid collection device pulling the plunger to collect blood and pushing or rotating the plunger to eject liquid through the storage tank, completing the body fluid aspiration and pushing discharge.

[0061] Specifically, the main controller continuously receives multiple monitoring signals transmitted from the body fluid collection device and the pipeline system, performs real-time analysis and threshold determination of parameters such as liquid level and pressure, and identifies the current operating status of body fluid collection, transmission, and processing. When the monitoring signal indicates that the storage tank has not reached the preset storage capacity and the pipeline pressure is within the safe range, the main controller issues an extraction control command to the body fluid collection device, driving the storage tank to slowly and evenly complete the extraction of the body fluid to be purified through the reserved sampling channels such as the patient's intravenous catheter and arterial catheter by pulling the lever. When the monitoring signal indicates that the storage tank has reached the target storage capacity and the collection process is over, the main controller simultaneously controls the first and second route switches to switch the flow channels and issues a discharge control command to the body fluid collection device, controlling the storage tank to slowly and evenly push the temporarily stored body fluid to the body fluid processing device by pushing the push rod or rotating the lever. During this process, the main controller synchronously sends coordinated control commands to the body fluid processing device based on the real-time changes in the monitoring signals, so that the purification rate of the body fluid processor matches the body fluid pushing rate, ensuring that the timing and rhythm of the body fluid extraction and purification are synchronized, forming a closed-loop intermittent operation control.

[0062] As can be seen, this embodiment achieves efficient coordination between body fluid extraction and purification through real-time feedback of monitoring signals and closed-loop control of the main controller, ensuring the rhythm stability and process controllability of the intermittent operation of the device; the slow and uniform ejection action of the storage tank can reduce pipeline pressure fluctuations and avoid damage to the patient's minimally invasive sampling channel; the segmented flow channel control of the dual-route switch can effectively prevent the original body fluid from mixing with the purified body fluid, thereby improving purification efficiency.

[0063] In one possible embodiment, controlling the body fluid collection device to perform body fluid extraction and discharge based on the plurality of monitoring signals specifically includes the following steps: 641. Extract the monitoring signals for the first liquid level sensor and the second liquid level sensor from the plurality of monitoring signals to obtain the first liquid level signal and the second liquid level signal; 642. Determine the first switching state of the first routing switch based on the first liquid level signal; and determine the second switching state of the second routing switch based on the second liquid level signal; 643. Determine the first action command for the storage tank in the body fluid collection device based on the first switch state and the second switch state; 644. Determine the first routing selection state of the first routing switch and the second routing selection state of the second routing switch according to the first action instruction; 645. Determine the body fluid extraction and discharge action based on the first routing state, the second routing state, and the first action instruction.

[0064] The monitoring signals include detection signals from various sensors in the automatic intermittent body fluid purification system. The first liquid level sensor is a liquid level monitoring component installed in the first pipeline between the first routing switch and the storage tank, and the second liquid level sensor is a liquid level monitoring component installed in the second pipeline between the storage tank and the body fluid processor. The first liquid level signal and the second liquid level signal are electrical signals converted from the physical parameters of the liquid level by the first liquid level sensor and the second liquid level sensor, respectively, reflecting the filling state and transmission progress of the body fluid in the corresponding pipeline. The first switch state and the second switch state are the on / off states of the routing switch, including connected and disconnected states. The first action command is a control command that drives the storage tank to perform extraction or ejection actions, including parameters such as the pulling / pushing of the lever or the rotation speed and stroke. The first route selection state and the second route selection state are the directional connection states of the routing switch in the on / off state, reflecting the path selection result of the flow channel. The body fluid extraction and discharge action is a closed-loop action of body fluid collection and transmission under the coordination of the storage tank extraction / ejection action and the dual routing switch states.

[0065] Specifically, firstly, the main controller filters the output signals of the first and second liquid level sensors from multiple monitoring signals and performs signal noise reduction and analog-to-digital conversion. The first liquid level signal reflects the body fluid level in the pipeline from the first routing switch to the storage tank, and the second liquid level signal reflects the body fluid level in the pipeline from the storage tank to the body fluid processor. Next, based on the liquid level threshold determination logic built into the main controller, if the first liquid level signal is lower than the preset acquisition threshold and the second liquid level signal is at the no-load threshold, the first switch state of the first routing switch is determined to be "connected to the patient sampling channel - second routing switch", and the second switch state of the second routing switch is determined to be "connected to the first routing switch - storage tank"; if the first liquid level signal reaches the acquisition threshold and the second liquid level signal is lower than the processing threshold, the first switch state is determined to switch to "disconnected from the patient sampling channel", and the second switch state is determined to switch to "connected to the storage tank - body fluid processor". Then, the main controller generates the first action command for the storage tank based on the combined result of the dual switch states: when the switch state is "acquisition path connected", a "pull lever to extract body fluid" command is generated; when the switch state is "processing path connected", a "push / rotate lever to eject body fluid" command is generated. The command includes the rate parameter of the extraction action of the storage tank to ensure slow and uniform transmission of body fluid. At the same time, the main controller refines the routing selection state of the routing switch based on the first action command. The extraction command corresponds to the first routing selection state as "directional connection to patient reserved hole - second routing switch" and the second routing selection state as "directional connection to first routing switch - storage tank"; the ejection command corresponds to the first routing selection state as "directional connection to body fluid processor - patient reserved hole" and the second routing selection state as "directional connection to storage tank - body fluid processor". Finally, the main controller matches the routing selection status with the action command of the storage tank in a timing sequence, and drives the body fluid collection device to perform the corresponding actions: in the extraction stage, the storage tank pulls the lever to extract the patient's body fluid through the dual-routing switch directional path; in the ejection stage, the storage tank pushes / rotates the lever to push the temporarily stored body fluid to the body fluid processor through the switched routing path, completing one intermittent extraction and discharge.

[0066] As can be seen, this embodiment achieves coordinated control of the routing switch status and the liquid storage tank action command by extracting the liquid level signal and determining the threshold. It deeply couples the liquid level monitoring, routing switching and liquid storage tank action to form a control logic of "sensor feedback - status determination - command generation - action execution". At the same time, the slow and uniform injection action of the liquid storage tank, combined with the segmented routing control, can effectively reduce the damage to the patient's minimally invasive sampling channel caused by pipeline pressure fluctuations. Stable body fluid collection and transmission can be completed without the need to establish an arteriovenous fistula, which significantly reduces the risk of treatment trauma and complications for patients, while improving the automation of device operation and the safety of body fluid handling.

[0067] In one possible embodiment, determining the first routing selection state of the first routing switch and the second routing selection state of the second routing switch according to the first action instruction specifically includes the following steps: 6441. Determine the working type of the storage tank according to the first action command; the working type includes extracting body fluid and discharging body fluid; 6442. When the working type is the extraction of body fluid, the first route selection state is determined to be that the first route switch is connected to the second route switch, and the first route switch is not connected to the second pipeline; the second route selection state is determined to be that the second route switch is connected to the first route switch and the storage tank, and the second route switch is not connected to the second pipeline. 6443. When the working type is "discharging bodily fluids", the first route selection state is determined to be that the first route switch and the second route switch are not connected, and the first route switch is connected to the second pipeline; the second route selection state is determined to be that the first route switch and the second route switch are not connected, and the liquid storage tank is connected to the second route switch and the second pipeline.

[0068] The first action command is a control command issued by the main controller to control the storage tank to perform body fluid extraction or discharge actions; the first routing switch and the second routing switch are bidirectional controllable on / off components in the liquid circuit system, used to selectively open and close the fluid passage; the routing selection status represents the port connectivity of the routing switch and determines the path of body fluid transmission; the storage tank is a temporary storage container for body fluid, used to collect the collected target body fluid when extracting body fluid, and used to directionally transport the internal body fluid to the second pipeline when discharging body fluid.

[0069] Specifically, the main controller first parses the working type of the storage tank from the first action command. When the working type is to extract bodily fluid, the first routing switch and the second routing switch are connected to each other, while both are disconnected from the second pipeline, forming an extraction path of "first routing switch - second routing switch - storage tank" to achieve the extraction of the target bodily fluid; when the working type is to discharge bodily fluid, the first routing switch and the second routing switch are disconnected from each other, the first routing switch is directly connected to the second pipeline, and the second routing switch is simultaneously connected to the storage tank and the second pipeline, forming a bodily fluid discharge path of "storage tank - second routing switch - second pipeline" to achieve the directional delivery of bodily fluid to the bodily fluid treatment device.

[0070] As can be seen, this embodiment, through the differentiated state configuration of the dual-route switch, can accurately switch the liquid path according to the working type of the storage tank, realize the physical isolation of the extraction and discharge process, effectively avoid body fluid backflow, crosstalk and cross-contamination, ensure the uniqueness and reliability of the body fluid transmission path, and provide stable liquid path control for the automated sampling and delivery of intermittent body fluid detection.

[0071] In one possible embodiment, determining the body fluid extraction and discharge action based on the first routing selection state, the second routing selection state, and the first action command specifically includes the following steps: 6451. The automatic intermittent body fluid purification command is parsed to obtain the intermittent cycle; 6452. Determine the first execution action of the first routing switch and the second execution action of the second routing switch based on the intermittent period, the first routing selection state, and the second routing selection state; and determine the third execution action of the liquid storage tank; 6453. Determine the body fluid extraction and discharge action based on the first execution action, the second execution action, and the third execution action.

[0072] The first action command is a directional execution command generated by the main controller in conjunction with the liquid level monitoring signal, including control information such as the operation mode and execution rate of the storage tank. The working type of the storage tank is an operating condition type divided based on the command. Extracting body fluid corresponds to the body fluid collection and storage stage, and discharging body fluid corresponds to the body fluid purification and reinfusion stage. The two are mutually exclusive operating conditions and are not executed in parallel. The first route selection state and the second route selection state are directional connection combination states of multiple pipeline ports inside the routing switch, used to realize the segmented isolation and unidirectional transmission of body fluid flow channels, which is different from the single on / off function of traditional pipeline valves. The second pipeline is a fluid pipeline connecting the body fluid processor and the two routing switches. It is the channel for body fluid purification and reinfusion and does not participate in the original body fluid collection process.

[0073] Specifically, the main controller first parses the first action command, extracting parameters such as the action mode, execution sequence, and rate limit. Combined with the device's built-in control logic rules, it determines the current work type the storage tank needs to perform, clearly distinguishing between fluid extraction and fluid discharge. Next, for the fluid extraction work type, the main controller simultaneously regulates the internal flow interfaces of the two routing switches. The first routing switch is adjusted to a connection state, opening only its fluid pathway with the patient's reserved fluid channel and the second routing switch, while closing all its connection ports with the second pipeline, cutting off the connection between the collection flow channel and the fluid processor circuit. Simultaneously, the second routing switch is simultaneously adjusted to a connection state matching the collection process, opening only its fluid pathway with the first routing switch and the storage tank, while closing all its interfaces with the second pipeline and the fluid processor, forming a fully enclosed, branchless, unidirectional fluid collection flow channel. This ensures that the original, unpurified fluid drawn from the patient can only flow smoothly into the storage tank for temporary storage along this directional pathway. Then, depending on the type of bodily fluid discharge, the main controller synchronously switches the overall connection mode of the two routing switches. First, it disconnects the fluid connection port between the first and second routing switches, adjusts the first routing switch to the reinfusion state, and only retains its connection port with the second pipeline and the patient's reserved bodily fluid channel. At the same time, it disconnects the second routing switch from the first routing switch, and only opens the directional fluid passage between the storage tank, the second pipeline and the bodily fluid processor, constructing an independent and closed-loop flow channel for bodily fluid processing and reinfusion. This allows the raw bodily fluid temporarily stored in the storage tank to be uniformly transported to the bodily fluid processor for purification. The purified and qualified bodily fluid is directly returned to the first routing switch through the second pipeline and finally stably reinfused into the patient's body.

[0074] It is evident that by dynamically matching the working condition type determination and routing selection status, the flow channels of the body fluid collection stage and the purification and reinfusion stage are separated, eliminating the problem of mixing of the original body fluid and the purified body fluid, and significantly improving the purification efficiency and processing efficiency of the body fluid. The directional segmented control of the routing switch realizes the decoupling of pressure at the patient's blood vessel end, the storage tank end, and the body fluid processing end, avoiding the transmission of pipeline pressure fluctuations to the patient's minimally invasive reserved channel, effectively reducing the risks of vascular injury, puncture site bleeding, etc., thereby improving the safety in clinical applications.

[0075] In one possible embodiment, the body fluid collection device further includes a pressure sensor disposed at the first end of the storage tank. The step of determining the body fluid extraction and discharge action based on the first execution action, the second execution action, and the third execution action specifically includes the following steps: A1. Obtain the pressure parameters of the pressure sensor; A2. Based on the preset pressure threshold and the pressure parameters, determine the action parameters corresponding to the third execution action to obtain the action parameters of the liquid storage tank; A3. Determine the body fluid extraction and discharge action of the body fluid collection device based on the action parameters, the first execution action of the first routing switch and the second execution action of the second routing switch.

[0076] The pressure sensor is used to collect the real-time load pressure of the liquid storage tank during the injection action. The first execution action refers to the route switching and pipeline on / off orientation action performed by the first route switch after receiving the control command, used to control the flow channel between the body fluid collection end and the return end; the second execution action refers to the route switching and pipeline on / off orientation action performed by the second route switch after receiving the control command, used to control the flow channel between the liquid storage tank, the body fluid processor, and the first route switch; the third execution action specifically refers to the body fluid extraction and discharge actions performed by the liquid storage tank after receiving the control command; the pressure parameter is the electrical signal parameter converted from the physical pressure signal by the pressure sensor, reflecting the real-time pressure status of the liquid storage tank and related pipelines; the preset pressure threshold is the pressure critical value pre-calibrated based on clinical body fluid purification safety standards and the slow and uniform injection condition of the liquid storage tank, divided into two categories: the safe negative pressure threshold for extracting body fluid and the safe positive pressure threshold for discharging body fluid; the liquid storage tank action parameters are the calibrated quantitative indicators of the liquid storage tank's execution actions, including the lever pulling / pushing stroke, rotation rate, and action force, used to ensure that the liquid storage tank's actions are stable and controllable.

[0077] Specifically, firstly, the main controller acquires the raw pressure signal transmitted by the pressure sensor at the first end of the storage tank in real time through the communication link. After signal noise reduction and analog-to-digital conversion, standardized real-time pressure parameters are obtained. Next, the main controller retrieves the built-in preset pressure thresholds and compares the real-time pressure parameters with the corresponding pressure thresholds for each working condition. If the body fluid extraction stage is in progress, the real-time pressure parameters are compared with the extraction negative pressure threshold; if the body fluid discharge stage is in progress, the real-time pressure parameters are compared with the discharge positive pressure threshold. Based on the difference between the pressure parameters and the thresholds, the storage tank action parameters corresponding to the third execution action are precisely calibrated, and the speed and force of pulling, pushing, or rotating the lever are refined to ensure that the storage tank always maintains a slow and uniform operating state, avoiding problems such as body fluid reflux and patient vascular compression damage caused by excessively high or low pressure. Then, the main controller will perform timing matching and logical linkage between the calibrated liquid storage tank action parameters and the first execution action of the first routing switch and the second execution action of the second routing switch. It will synchronously coordinate the flow channel switching timing of the two routing switches with the pumping action rhythm of the liquid storage tank, so that the flow channel opening and closing of the routing switches and the action execution of the liquid storage tank are completely matched. Finally, it will determine the complete and continuous body fluid extraction and discharge action of the body fluid collection device, and realize the whole process control from body fluid extraction, temporary storage to pressurized discharge.

[0078] As can be seen, by using pressure sensors to monitor the pressure of the storage tank and pipeline in real time, and dynamically calibrating the operation parameters of the storage tank based on preset pressure thresholds, the storage tank can complete the extraction and discharge operations in a slow and uniform manner, which greatly reduces the risk of pipeline failure, body fluid leakage and patient vascular damage caused by pressure fluctuations, and improves the safety of the body fluid purification process. Furthermore, by coordinating the pressure control logic with the execution action of the dual-route switch, the effect of segmented isolation of the flow channel is further enhanced, ensuring the efficiency of body fluid purification.

[0079] As can be seen, by implementing the above-mentioned automatic intermittent body fluid purification control method, the continuous purification process is broken down into an intermittent cycle of "collection-temporary storage-purification-reinfusion" through instruction parsing and distribution by the main controller, which is adapted to the physiological characteristics of the patient's low-flow minimally invasive channel; based on the segmented flow channel control of the dual-route switch, the physical isolation of the collection, purification and reinfusion pathways is realized, which significantly improves the efficiency of body fluid purification; at the same time, combined with the real-time monitoring and closed-loop control of liquid level and pressure sensors, the pumping action parameters of the storage tank are adjusted to ensure slow and uniform transmission of body fluid, avoid the risk of vascular damage or tubing rupture caused by pipeline pressure fluctuations, and improve the safety during clinical use.

[0080] The above primarily describes the solutions of the embodiments of this application from the perspective of the method execution process. It is understood that, in order to achieve the above functions, the electronic device includes corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the units and algorithm steps of the various examples described in the embodiments provided herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0081] This application embodiment can divide the electronic device into functional units according to the above method example. For example, each function can be divided into a separate functional unit, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software functional unit. It should be noted that the unit division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0082] When dividing each functional module according to its corresponding function, please refer to [link / reference]. Figure 7 , Figure 7 This is a functional module block diagram of an automatic intermittent body fluid purification control device 700 provided in an embodiment of this application. The automatic intermittent body fluid purification control device 700 includes: The control unit 701 is configured to receive and respond to an automatic intermittent body fluid purification command; determine a body fluid collection control command and a body fluid purification command based on the automatic intermittent body fluid purification command; send the body fluid collection control command to the body fluid collection device; and send the body fluid purification command to the body fluid processing device. Processing unit 702 is configured to receive and respond to the body fluid collection control command; collect the user's first body fluid via the first routing switch according to the body fluid collection control command; transmit the first body fluid to the body fluid processing device via the second routing switch; and send multiple monitoring signals from multiple sensors to the main controller; receive and respond to the body fluid purification command; control the body fluid processor to process the first body fluid according to the body fluid purification command to obtain a second body fluid; and transmit the second body fluid to the first routing switch via the second pipeline. The execution unit 703 is configured to receive the plurality of monitoring signals, control the body fluid collection device to perform body fluid extraction and discharge actions according to the plurality of monitoring signals, and control the body fluid processing device to perform body fluid purification.

[0083] In some possible embodiments, the plurality of sensors include a first liquid level sensor connected to the first routing switch, and a second liquid level sensor disposed between the second routing switch and the body fluid processing device. In controlling the body fluid collection device to perform a body fluid extraction and discharge action based on the plurality of monitoring signals, the execution unit 703 is specifically used for: The monitoring signals for the first liquid level sensor and the second liquid level sensor are extracted from the plurality of monitoring signals to obtain the first liquid level signal and the second liquid level signal; The first switching state of the first routing switch is determined based on the first liquid level signal; and the second switching state of the second routing switch is determined based on the second liquid level signal. The first action command for the storage tank in the body fluid collection device is determined based on the first switch state and the second switch state. The first routing selection state of the first routing switch and the second routing selection state of the second routing switch are determined according to the first action instruction. The body fluid extraction and discharge action is determined based on the first routing state, the second routing state, and the first action instruction.

[0084] In some possible embodiments, in determining the first routing selection state of the first routing switch and the second routing selection state of the second routing switch according to the first action instruction, the execution unit 703 is specifically used for: The working type of the liquid storage tank is determined according to the first action command; the working type includes extracting body fluid and discharging body fluid. When the work type is fluid extraction, the first route selection state is determined to be that the first route switch is connected to the second route switch, and the first route switch is not connected to the second pipeline; the second route selection state is determined to be that the second route switch is connected to the first route switch and the storage tank, and the second route switch is not connected to the second pipeline. When the working type is "draining bodily fluids", the first routing selection state is determined to be that the first routing switch and the second routing switch are not connected, and the first routing switch is connected to the second pipeline; the second routing selection state is determined to be that the first routing switch and the second routing switch are not connected, and the liquid storage tank is connected to the second routing switch and the second pipeline.

[0085] In some possible embodiments, in determining the body fluid extraction and discharge action based on the first routing state, the second routing state, and the first action instruction, the execution unit 703 is specifically used for: The automatic intermittent body fluid purification command is parsed to obtain the intermittent cycle; Based on the intermittent period, the first routing selection state, and the second routing selection state, determine the first execution action of the first routing switch and the second execution action of the second routing switch; and determine the third execution action of the liquid storage tank; The fluid extraction and discharge action is determined based on the first execution action, the second execution action, and the third execution action.

[0086] In some possible embodiments, the body fluid collection device further includes a pressure sensor disposed at a first end of the storage tank, and the execution unit 703 is specifically used for determining the body fluid extraction and discharge action based on the first execution action, the second execution action, and the third execution action: Obtain the pressure parameters of the pressure sensor; Based on the preset pressure threshold and the pressure parameters, the action parameters corresponding to the third execution action are determined to obtain the action parameters of the liquid storage tank. The body fluid extraction and discharge action of the body fluid collection device is determined based on the action parameters, the first execution action of the first routing switch, and the second execution action of the second routing switch.

[0087] As can be seen, in this embodiment, the automatic intermittent body fluid purification device receives and responds to an automatic intermittent body fluid purification command through a main controller; determines a body fluid collection control command and a body fluid purification command based on the automatic intermittent body fluid purification command; sends the body fluid collection control command to the body fluid collection device; and sends the body fluid purification command to the body fluid processing device; receives and responds to the body fluid collection control command through the body fluid collection device; collects the user's first body fluid via the first routing switch according to the body fluid collection control command; transmits the first body fluid to the body fluid processing device via the second routing switch; and sends multiple monitoring signals from multiple sensors to the main controller; receives and responds to the body fluid purification command through the body fluid processing device; controls the body fluid processor to process the first body fluid according to the body fluid purification command to obtain a second body fluid; transmits the second body fluid to the first routing switch via the second pipeline; and receives the multiple monitoring signals through the main controller, controls the body fluid collection device to perform a body fluid extraction and discharge action according to the multiple monitoring signals; and controls the body fluid processing device to perform body fluid purification. In this way, through the coordinated control of the main controller, the first routing switch, and the second routing switch, automatic intermittent body fluid extraction, purification, and reinfusion are achieved, effectively avoiding the mixing of purified body fluid with untreated body fluid and improving the efficiency of body fluid purification. At the same time, through segmented flow channel isolation and pressure regulation, the risk of fluctuations in the patient's vascular pressure is reduced, and the safety of the body fluid purification process is improved.

[0088] It should be noted that the specific functional implementation of the automatic intermittent body fluid purification control device 700 is described above. Figure 6 The description of the automatic intermittent body fluid purification control method includes, for example, the control unit 701 being used to implement the relevant content of S610, which will not be elaborated further. The various units or modules in the automatic intermittent body fluid purification control device 700 can be individually or entirely combined into one or more other units or modules, or some of the units or modules can be further divided into multiple functionally smaller units or modules. This achieves the same operation without affecting the technical effects of the embodiments of the present invention. The aforementioned units or modules are based on logical function division. In practical applications, the function of one unit (or module) is implemented by multiple units (or modules), or the function of multiple units (or modules) is implemented by one unit (or module).

[0089] This application also provides a computer-readable storage medium storing a computer program for electronic data interchange, which causes a computer to perform some or all of the steps of any of the methods described in the above method embodiments, wherein the computer includes an electronic device.

[0090] This application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods described in the above method embodiments. The computer program product may be a software installation package, and the computer may include an electronic device.

[0091] It should be noted that, for the sake of simplicity, the above embodiments are all described as a series of actions. Those skilled in the art should understand that this application is not limited to the described order of actions, as some steps in the embodiments of this application can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions, steps, modules, or units involved are not necessarily essential to the embodiments of this application.

[0092] In the above embodiments, the descriptions of each embodiment in this application have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0093] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This program can be stored in a computer-readable storage medium, and when executed, it can include the processes described in the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM or random access memory (RAM), magnetic disks, or optical disks.

[0094] The steps of the methods or algorithms described in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (EEPROM), registers, hard disk, portable hard disk, read-only optical disk (CD-ROM), or any other form of storage medium well known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium.

[0095] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in the embodiments of this application can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer instructions. When these computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another.

[0096] The modules / units included in the various devices and products described in the above embodiments can be software modules / units, hardware modules / units, or a combination of both. For example, for devices and products applied to or integrated into a chip, all modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits. For devices and products applied to or integrated into a chip module, all modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The implementation is achieved through a software program that runs on the processor integrated within the chip module. The remaining modules / units (if any) can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into terminal equipment, each of their modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal equipment. Alternatively, at least some modules / units can be implemented through a software program that runs on the processor integrated within the terminal equipment, while the remaining modules / units (if any) can be implemented using hardware methods such as circuits.

[0097] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above descriptions are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. An automatic intermittent body fluid purification device, characterized in that, The body fluid purification device includes: a main controller, a body fluid collection device connected to a pre-reserved hole for the user, and a body fluid processing device connected to the body fluid collection device; the main controller is communicatively connected to the body fluid collection device and the body fluid processing device; the body fluid collection device includes a first routing switch connected to the pre-reserved hole via a first pipeline, and a second routing switch connected to the first routing switch; the body fluid processing device includes a body fluid processor, the input end and output end of which are respectively connected to the second routing switch via a second pipeline and to the first routing switch, wherein: The main controller is configured to receive and respond to an automatic intermittent body fluid purification command; determine a body fluid collection control command and a body fluid purification command based on the automatic intermittent body fluid purification command; send the body fluid collection control command to the body fluid collection device; and send the body fluid purification command to the body fluid processing device. The body fluid collection device is used to receive and respond to the body fluid collection control command; collect the user's first body fluid via the first routing switch according to the body fluid collection control command; transmit the first body fluid to the body fluid processing device via the second routing switch; and send multiple monitoring signals from multiple sensors to the main controller. The body fluid processing device is used to receive and respond to the body fluid purification command; control the body fluid processor to process the first body fluid according to the body fluid purification command to obtain the second body fluid; and transmit the second body fluid to the first routing switch via the second pipeline. The main controller is used to receive the plurality of monitoring signals, control the body fluid collection device to perform body fluid extraction and discharge actions according to the plurality of monitoring signals, and control the body fluid processing device to perform body fluid purification.

2. The automatic intermittent body fluid purification device as described in claim 1, characterized in that, The plurality of sensors include a first liquid level sensor connected to the first routing switch, and a second liquid level sensor disposed between the second routing switch and the body fluid processing device. During the process of controlling the body fluid collection device to perform body fluid extraction and discharge actions based on the plurality of monitoring signals, the main controller is specifically used for: The monitoring signals for the first liquid level sensor and the second liquid level sensor are extracted from the plurality of monitoring signals to obtain the first liquid level signal and the second liquid level signal; The first switching state of the first routing switch is determined based on the first liquid level signal; and the second switching state of the second routing switch is determined based on the second liquid level signal. The first action command for the storage tank in the body fluid collection device is determined based on the first switch state and the second switch state. The first routing selection state of the first routing switch and the second routing selection state of the second routing switch are determined according to the first action instruction. The body fluid extraction and discharge action is determined based on the first routing state, the second routing state, and the first action instruction.

3. The automatic intermittent body fluid purification device as described in claim 2, characterized in that, In the process of determining the first routing selection state of the first routing switch and the second routing selection state of the second routing switch according to the first action instruction, the main controller is specifically used for: The working type of the liquid storage tank is determined according to the first action command; the working type includes extracting body fluid and discharging body fluid. When the work type is fluid extraction, the first route selection state is determined to be the first route switch connected to the second route switch, and the first route switch is not connected to the second pipeline; The second route selection status is determined to be that the second route switch is connected to the first route switch and the liquid storage tank, and the second route switch is not connected to the second pipeline; When the working type is "draining bodily fluids", the first routing selection state is determined to be that the first routing switch and the second routing switch are not connected, and the first routing switch is connected to the second pipeline; The second routing selection state is determined to be that the first routing switch and the second routing switch are not connected, and the liquid storage tank is connected to the second routing switch and the second pipeline.

4. The automatic intermittent body fluid purification device as described in claim 2 or 3, characterized in that, In the process of determining the body fluid extraction and discharge action based on the first routing selection state, the second routing selection state, and the first action command, the main controller is specifically used for: The automatic intermittent body fluid purification command is parsed to obtain the intermittent cycle; Based on the intermittent period, the first routing selection state, and the second routing selection state, determine the first execution action of the first routing switch and the second execution action of the second routing switch; and determine the third execution action of the liquid storage tank; The fluid extraction and discharge action is determined based on the first execution action, the second execution action, and the third execution action.

5. The automatic intermittent body fluid purification device as described in claim 4, characterized in that, The body fluid collection device further includes a pressure sensor disposed at the first end of the storage tank. During the process of determining the body fluid extraction and discharge action based on the first, second, and third execution actions, the main controller is specifically used for: Obtain the pressure parameters of the pressure sensor; Based on the preset pressure threshold and the pressure parameters, the action parameters corresponding to the third execution action are determined to obtain the action parameters of the liquid storage tank. The body fluid extraction and discharge action of the body fluid collection device is determined based on the action parameters, the first execution action of the first routing switch, and the second execution action of the second routing switch.

6. The automatic intermittent body fluid purification device as described in any one of claims 1-3, characterized in that, The body fluid collection device further includes an anticoagulant flushing device, a flushing valve, a storage tank, and a third-way switch; the flushing valve is connected to the anticoagulant flushing device; the flushing valve is connected to the third-way switch, the second end of the third-way switch away from the flushing valve is connected to the storage tank, and the storage tank is connected to the second-way switch, wherein: The anticoagulant flushing device includes an anticoagulant flushing fluid, which includes at least one of heparin or physiological saline. The anticoagulant flushing fluid is used for flushing the first pipeline and preventing the first body fluid from condensing. The storage tank is used to control the body fluid collection device to draw in the first body fluid and to control the body fluid processing device to discharge the second body fluid.

7. The automatic intermittent body fluid purification device as described in claim 6, characterized in that, The driving mechanism of the liquid storage tank includes a rotary propulsion mechanism or a push rod propulsion mechanism to extract body fluid and uniformly expel the body fluid.

8. The automatic intermittent body fluid purification device as described in any one of claims 1-3, characterized in that, The body fluid treatment device further includes a body fluid treatment container and a waste liquid container; the third end of the body fluid processor is connected to the body fluid treatment container, and the fourth end of the body fluid processor is connected to the waste liquid container, wherein: The body fluid processor is used to perform dialysis treatment on body fluids; the dialysis treatment includes at least one of the following: hemofiltration and hemodialysis filtration; The waste liquid container is used to collect waste bodily fluids; The body fluid processing container is filled with dialysis fluid for purifying the user's first body fluid through a dialysis membrane and adding trace elements to the first body fluid.

9. The automatic intermittent body fluid purification device as described in any one of claims 1-3, characterized in that, An ultraviolet blood irradiation device is also provided on the second pipeline between the first routing switch and the second routing switch. The ultraviolet blood irradiation device is used to irradiate body fluids with ultraviolet light to achieve immune activation and purification.

10. A method for controlling automatic intermittent body fluid purification, characterized in that, An automatic intermittent body fluid purification device is provided, comprising: a main controller, a body fluid collection device connected to a pre-reserved port for the user, and a body fluid processing device connected to the body fluid collection device; the main controller is communicatively connected to the body fluid collection device and the body fluid processing device; the body fluid collection device includes a first routing switch connected to the pre-reserved port via a first pipeline, and a second routing switch connected to the first routing switch; the body fluid processing device includes a body fluid processor, the input and output ends of which are respectively connected to the second routing switch via second pipelines and to the first routing switch, the method comprising: Receive and respond to an automatic intermittent body fluid purification command; determine a body fluid collection control command and a body fluid purification command based on the automatic intermittent body fluid purification command; send the body fluid collection control command to the body fluid collection device; and send the body fluid purification command to the body fluid purification device. The system controls the body fluid collection device to receive and respond to the body fluid collection control command; collects the user's first body fluid via the first routing switch according to the body fluid collection control command; transmits the first body fluid to the body fluid processing device via the second routing switch; and sends multiple monitoring signals from multiple sensors to the main controller. The body fluid processing device is controlled to receive and respond to the body fluid purification command; the body fluid processor is controlled to process the first body fluid according to the body fluid purification command to obtain the second body fluid; the second body fluid is transmitted to the first routing switch through the second pipeline; The system receives the plurality of monitoring signals and controls the body fluid collection device to perform body fluid extraction and discharge actions based on the plurality of monitoring signals; and controls the body fluid processing device to perform body fluid purification.

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