489 results about "Dialysis fluid" patented technology

The invention discloses a dialysate regeneration system and dialysis equipment, the dialysate regeneration system comprises a waste liquid passage, a slow flow box, an electromagnetic valve, a reactor and an adsorption mechanism, the waste liquid passage is in through connection with the slow flow box, the slow flow box is connected with the reactor through a pipeline, and the pipeline is provided with the electromagnetic valve. The fixing amount of a urease layer is increased through the treatment film with the three cambered surfaces, the urea decomposition efficiency is improved, the diffusion path of toxins on the treatment film is shortened, meanwhile, the treatment film with the cambered surface structure can guide dialysis waste liquid entering the reactor to generate local turbulence, and the toxins are prevented from being accumulated on the surface of the treatment film; the dialyzer is arranged, the micro horse is started to drive the hollow fiber to rotate, the material exchange efficiency of blood and dialysate is improved, and the situation that protein and cells are deposited on the surface of the hollow fiber, and the service life of the hollow fiber is shortened is avoided.

The invention relates to the technical field of medical equipment, and discloses an intelligent temperature control and flow control system for hemodialysis, which comprises a dialysis pipeline shunting shell; the two main pipelines are arranged in the dialysis pipeline shunting shell, and a plurality of slave pipelines are arranged between the two main pipelines; when the flow rate of the liquid is low, the slave pipeline is far away from the heating component, the temperature of the liquid cannot rise too fast under the condition that the flow rate is low, the knob part can move to the slave pipeline when controlling the valve component to increase the flow rate of the liquid, and the slave pipeline moves close to the heating component. The distance between the auxiliary pipeline and the temperature rising component is reduced, when the flow rate of liquid with large flow is high, the auxiliary pipeline gets close to the temperature rising component, heat generated by the temperature rising component can be better received by the auxiliary pipeline and conducted to the liquid, and the flow adjusting system and the temperature control system can cooperate to achieve the purpose that the flow adjusting system and the temperature control system work together. A preset temperature value can be provided for the dialysis liquid all the time when the flow is increased or decreased.

The present invention discloses a hemodialysis fluid balance control method, device, electronic device, and medium, relating to the technical field of intelligent regulation. The hemodialysis fluid balance control method includes: in response to a patient experiencing a hypotensive event, determining whether the hypotensive event is caused by a hypoglycemic event; if the hypotensive event is caused by a hypoglycemic event, switching the patient's dialysate from a sugar-free dialysate to a sugar-containing dialysate; monitoring the patient's real-time blood glucose concentration; and controlling the dialysate flow rate during the patient's dialysis based on the real-time blood glucose concentration. The embodiments of the present application achieve the goal of reducing interference with hemodialysis while ensuring compensation for hypoglycemia.

The invention discloses a dialysate supply device for hemodialysis, which comprises a tank body, a partition plate, a material storage tank, a liquid storage box, a stirring rod and a power mechanism, and is provided with a feeding mechanism, a liquid discharge mechanism and a supply device, the feeding mechanism performs lifting reciprocating motion through a first conical block and a second conical block which are driven by a cam; quantitative closed feeding of dialysis dry powder is achieved, the problem that a traditional blade cuts a dry powder bag to cause scrap pollution is solved, a liquid discharging mechanism adopts a double-column-shaped shell to be matched with a piston plate and a one-way valve and is in linkage with a feeding mechanism, medicine liquid is synchronously and quantitatively extracted, and a supply device utilizes a floating block to ascend and descend along with the liquid level, and a sealing block is driven to be opened and closed through an adjusting rod. According to the automatic feeding device for the dialysis dry powder, the dialysis dry powder is accurately metered, mixed and fed, and the preparation quality of the dialysis liquid and the clinical use safety are improved.

This disclosure relates to systems for medical fluid pumps and related methods. In some implementations, a system includes a system for draining fluid from a peritoneal cavity of a patient comprising a microfluidic pump; a drain bag fluidly coupled to the microfluidic pump; and an inlet line coupled to the drain bag, wherein the microfluidic pump is configured to apply a negative pressure to an interior of the drain bag to draw effluent from a peritoneal cavity of the patient along the inlet line and into the drain bag. In some implementations, a system for performing peritoneal dialysis includes a microfluidic pump; a dual chamber bag fluidly coupled to the microfluidic pump, where the dual chamber bag includes an effluent chamber configured to be fluidly coupled to a peritoneal cavity of a patient; a dialysate chamber; and a flexible membrane separating the effluent chamber from the dialysate chamber.

The invention discloses a peritoneal dialysis system which comprises an abdominal cavity pipeline with the first end communicated with the abdominal cavity of a human body; the semi-permeable membrane assembly comprises a membrane, a first side and a second side, the first side and the second side are separated by the membrane, and the first side is communicated with the second end of the abdominal cavity pipeline so as to receive the abdominal cavity dialysate from the abdominal cavity pipeline and inject the abdominal cavity dialysate into the abdominal cavity of the human body; the external liquid path system comprises an external liquid pipeline communicated with the second side, and the external liquid pipeline comprises a waste liquid outlet for outputting dialysis waste liquid led out from the peritoneal dialysis liquid through the membrane; when the peritoneal dialysis solution is led out, the membrane allows moisture and small molecular solutes in the peritoneal dialysis solution to permeate into the second side and entraps a macromolecular penetrant on the first side so as to maintain the osmotic pressure of the peritoneal dialysis solution.

A system includes an extracorporeal blood treatment device and a heat exchanger for heat exchange between dialysate flowing from the extracorporeal blood treatment device and permeate to be supplied to the extracorporeal blood treatment device. The extracorporeal blood treatment device and the heat exchanger are configured as separate devices.

The dialyzer comprises a shell, a first end cover and a second end cover are arranged at the two ends of the shell respectively, and a hollow fiber membrane is arranged in the shell; sealants are respectively arranged at two ends of the hollow fiber membrane; the first end cover is provided with an artery connector, the second end cover is provided with a vein connector, and the two ends of the shell are provided with a dialysate inlet and a dialysate outlet respectively. A flow guide device is arranged in the blood chamber between the first end cover and the hollow fiber membrane and used for adjusting the distribution rule of blood flowing in from the artery connector in the blood chamber. According to the dialyzer disclosed by the utility model, the distribution rule of blood flowing in from the artery interface in the blood chamber is adjusted by utilizing the flow guide device, so that the blood can enter the hollow fiber membranes in different areas more uniformly; according to the hollow fiber membrane, the flow distribution of blood in the hollow fiber membrane is more matched with the flow distribution of dialysate outside the hollow fiber membrane, so that the diffusion degree between the blood and the dialysate can be improved, and the toxin clearance rate and the dialysis efficiency are improved.

The utility model relates to a multifunctional infusion support for peritoneal dialysis, which comprises a support body, the support body comprises a first rod and a second rod, the second rod is telescopically matched with the first rod, the infusion support further comprises a shelving part, the shelving part is connected with the first rod, and a reference body is arranged on the shelving part. By arranging the first rod and the second rod, the height can be freely adjusted according to illness conditions, and the flow speed of dialysate can be conveniently controlled; the peritoneal dialysis waste liquid bag can be conveniently placed through the arrangement of the placing part, stumbling traction is reduced, infection factors are reduced, meanwhile, the brightness of peritoneal dialysis liquid can be identified through the arrangement of the reference body, and the quality of the peritoneal dialysis liquid can be rapidly evaluated.

The method comprises the following steps: S1, adding a formic acid-sodium formate solution into raw material powder, carrying out high-temperature oil bath, cooling to room temperature, carrying out suction filtration to obtain a supernatant A containing xylooligosaccharide, repeatedly cleaning and carrying out suction filtration until the extracted liquid is neutral, and drying at low temperature to obtain the xylooligosaccharide powder; pre-treated lignin raw materials are obtained; s2, putting the supernate into a dialysis bag, and magnetically stirring to obtain primary dialysis liquid B; s3, putting the preliminary dialysis liquid B into a dialysis bag, and magnetically stirring to obtain dialysis liquid C; s4, concentrating the dialysis liquid C to obtain concentrated liquid D; and S5, pre-freezing the concentrated liquid D, and freeze-drying the sample to obtain xylooligosaccharide powder E. According to the method, formic acid-sodium formate is used as a catalytic medium, different acid concentrations and molar ratios are adopted, high-temperature oil bath and dialysis freeze-drying are utilized for two-step extraction, and the yield of xylooligosaccharide after catalysis is obviously increased.

The disclosure relates to systems and methods for increasing the functional capabilities of a sorbent-based dialysis system. The systems and methods allow for the mode of operation of the dialysis system to be switched between single pass mode and a sorbent based multi-pass mode by controlling an amount of water added to the dialysate between 0% to 100% of the dialysate flow rate.

The invention relates to the technical field of peritoneal dialysis in the nephrology department, and discloses a peritoneal dialysis catheter anti-blocking device in the nephrology department, the peritoneal dialysis catheter anti-blocking device comprises a peritoneal dialysis catheter, an inflow tube and an anti-blocking mechanism are fixedly installed outside the peritoneal dialysis catheter, a rotating shaft is rotatably connected to the interior of a drainage tube, and propeller blades are fixedly installed outside the rotating shaft. An equipment box is fixedly mounted on the right side of the drainage tube, and a micro motor is fixedly mounted in the equipment box. According to the anti-blocking device for the peritoneal dialysis catheter in the nephrology department, when the micro motor drives the rotating shaft to rotate, the propeller blades slowly stir dialysate in the peritoneal dialysis catheter, and a directional vortex is formed; according to the design, liquid flowing is accelerated, protein, blood components and mineral substances are effectively prevented from being adsorbed or precipitated on the tube wall, the problem of blockage caused by standing is solved, meanwhile, the process does not need to depend on drugs, the operation process is simplified, early-stage tiny sediments can be preventively removed, and the catheter is kept unobstructed.

The present invention relates to a control or regulation device (150) configured to control or regulate the operation of a blood treatment device (100) for treating a patient during a blood treatment period wherein the blood treatment device (100) is connected to an extracorporeal blood circuit (300) and to a blood treatment device, such as a dialyzer (303) or a blood filter. The blood treatment apparatus (100) further comprises a dialysis liquid inlet line (104) and a dialysis liquid outlet line (102), a heating device (162) for heating the dialysis liquid, and one or more temperature sensors (165a, 165b) wherein at least a first temperature sensor (165a) is arranged downstream of the blood treatment device and / or downstream of the dialysis liquid inlet line (104) and at least a second temperature sensor (165b) is arranged downstream of the dialysis liquid outlet line (102). A first temperature value (T1) of a first liquid flowing prior to the dialysis liquid inlet line (104) is determined for determining a second temperature value (T2) of a second liquid flowing prior to the dialysis liquid inlet line (104). Here, the control or regulation device (150) is configured to increase or set the temperature of the dialysis liquid using the heating device (162) on the basis of a first temperature value (T1) determined by the first temperature sensor (165a).

This utility model relates to the field of packaging and sealing technology, and discloses a peritoneal dialysis fluid packaging and sealing machine, including a support plate. A slide rail is fixedly connected to the upper surface of the support plate, and a slider is fixedly connected to the upper surface of the slide rail. A clamping assembly is provided outside the slider, the clamping assembly including a clamping plate. The clamping plate is disposed outside the slider, and a connecting rod two is fixedly connected to the outer wall of the clamping plate. A fixing post one is rotatably connected to one end of the outer wall of the connecting rod two, and a fixing post two is rotatably connected to one end of the connecting rod two. A connecting rod three is rotatably connected to the outer wall of the fixing post one. In this utility model, the clamping plate stably clamps the packaging bag by driving the gears and connecting rods through a motor. Combined with the sliding of the slider on the slide rail, the packaging bag can be accurately transported to the sealing position, improving the stability of clamping and transporting, ensuring accurate positioning of the packaging bag during the sealing process, reducing sealing deviations caused by displacement, and improving sealing quality.

A medical fluid management assembly includes a pneumatic manifold, at least one valve, and a fluid manifold. The pneumatic manifold includes at least one pneumatic passageway that is pneumatically connected to the at least one valve. The fluid manifold includes at least one chamber comprising upper and lower fluid chambers separated by a flexible membrane. The fluid manifold also includes fluid tube sections and fluid pathways that fluidly couple the one or more upper and lower fluid chambers to the at least one valve and at least one of a purified water line, a liquid concentrate line, a to-extracorporeal circuit fresh dialysis fluid line, a drain line, or a from-extracorporeal circuit used dialysis fluid line.

This invention discloses an open, non-contact liquid heating method, comprising: collecting temperature data of multiple points of dialysis fluid and heating unit, and obtaining flow rate deviation and temperature sensor consistency deviation indices during dialysis fluid infusion; preprocessing the temperature data to obtain a stable multi-source temperature data sequence; fusing the multi-source temperature data to obtain the dialysis fluid characterization temperature, and analyzing it in conjunction with temperature change characteristics, flow rate deviation, and temperature sensor consistency deviation indices to construct a system state characterization quantity; identifying the heating stage based on the system state characterization quantity, using the dialysis fluid characterization temperature as the control target, generating heating control quantities according to the heating stage, and introducing compensation corrections when the flow rate changes; performing anomaly detection based on the system state characterization quantity, and jointly judging it in conjunction with the flow rate deviation and temperature sensor consistency deviation indices, generating anomaly scores based on the judgment results, and outputting corresponding hierarchical control strategies.

The present application relates to an extracorporeal blood treatment system (50) for treating a subject, the system comprising: an extracorporeal blood circuit (52); a dialysate fluid circuit (54); the extracorporeal blood circuit and the dialysate fluid circuit being separated by a membrane (56) of a filtration unit (58); at least one blood pump (60) for controlling the flow of blood through the blood circuit; at least one dialysate fluid pump (62) for controlling the flow of dialysate fluid through the dialysate fluid circuit (54); a system computing unit (64) operatively connected to the blood pump and to the dialysate fluid pump, the system computing unit having at least one input; wherein the system computing unit is adapted to receive a desired blood concentration of glutamine GLN b , to receive a desired blood concentration of glucose GLUCOSE b , and to receive a desired blood concentration of ketone bodies KETONE b ; the system computing unit being adapted to control the blood pump and the dialysate fluid pump such that an actual concentration value of glutamine GLN a is driven to approach GLN b , and an actual concentration value of glucose GLUCOSE a is driven to approach D b , and an actual concentration value of ketone bodies is driven to approach KETONE a . The present application relates to a treatment device for use in an extracorporeal blood treatment system, a method for treating cancer using the system, a controller for controlling the method and a dialysis liquid suitable for use in the method.

A hemodiafiltration (HDF) system for performing a hemodiafiltration (HDF) treatment is provided. The HDF system includes a mixing system for mixing nitric oxide (NO) and other chemicals to produce a dialysis fluid. The HDF system further includes an extracorporeal blood circulation circuit including a filter capable of separating the dialysis fluid into a dialysate and a NO-containing replacement fluid. The extracorporeal blood circulation circuit further comprises a dialyzer capable of receiving the dialysate from the filter and a blood line connected to the dialyzer, the blood line comprising an access point connected to the filter for administering the NO-containing replacement fluid to a patient during HDF therapy.

The utility model relates to the technical field of peritoneal dialysis equipment, and discloses a pipeline speed controller which comprises a lower clamping plate and an upper clamping plate, a peritoneal dialysis pipeline body is arranged between the lower clamping plate and the upper clamping plate in a clamped mode, and a plurality of clamping mechanisms are arranged on the two sides of the lower clamping plate and the two sides of the upper clamping plate in a clamped mode. A pipeline flow speed control mechanism is fixedly arranged on the upper end face of the upper clamping plate, and first handles are arranged on the two sides of the lower clamping plate correspondingly. According to the peritoneal dialysis catheter, the catheter flow speed control mechanism is arranged at the upper end of the upper clamping plate, the baffle can compress the peritoneal dialysis catheter body by rotating the rotating handle, and therefore the purpose of controlling the flow speed of dialysate in the peritoneal dialysis catheter body is achieved, and meanwhile the upper clamping plate and the lower clamping plate are clamped and positioned through the limiting rod and the limiting hole; the upper clamping plate and the lower clamping plate can be detached by detaching the clamping mechanism after dialysis is completed, so that the pipeline speed controller can be repeatedly used, and the dialysis cost is reduced.

The invention discloses a method for extracting nanocellulose from turmeric decoction pieces, and belongs to the field of turmeric application, the method comprises the following steps: S1, pretreatment: crushing and sieving the turmeric decoction pieces, and then carrying out alkali treatment to obtain pre-powder; s2, bleaching is carried out; s3, acid hydrolysis; s4, mechanical treatment; s5, extracting; and S6, purification: dialyzing the collected supernatant by using a dialysis bag and taking deionized water as a dialysate, collecting a purified liquid after the dialysis is completed, passing the purified liquid through a 0.1 mu m filter membrane, collecting a filtrate, and freeze-drying to obtain freeze-dried powder which is the turmeric nano cellulose. According to the method for extracting the nanocellulose from the rhizoma curcumae longae decoction pieces, the synergistic effect of alkali treatment, biological bleaching, acid hydrolysis and mechanical treatment is utilized, the integrity of the rhizoma curcumae longae cellulose is guaranteed, meanwhile, barriers wrapping the rhizoma curcumae longae cellulose, such as lignin and hemicellulose, are broken, and the yield of the nanometer rhizoma curcumae longae cellulose is high.

A proportioning system includes a solute container filled with dry solutes, a source of water, a container of electrolyte concentrate, a fluid circuit connecting the solute container to the source of water and the container of electrolyte concentrate, the fluid circuit having an empty mixing container, a controller configured to transfer water from the source of water to the solute container through the fluid circuit so as to prepare a solute concentrate solution in the solute container. The controller is configured to transfer fluid from the container of electrolyte concentrate to a mixing container as well as a solute concentrate from the solute container to the mixing container and further adding water to said mixing container to form a medicament therein.

The utility model discloses a hemodialysis filtration treatment device, which relates to the technical field of hemodialysis filtration and comprises a base, a rotating wheel is fixedly mounted at the bottom of the base, a dialysate box is fixedly mounted on the upper surface of the base, a dialysis machine main body is fixedly mounted on the upper surface of the base, and a dialysis pump is rotatably mounted on one side of the dialysis machine main body. A control screen is fixedly installed at the top of the dialysis machine body, a liquid outlet pipe is fixedly installed on the dialysis machine body, a supporting rod is fixedly installed on the upper surface of the base, a liquid storage box is arranged on the upper surface of the base, a handle is fixedly installed on the liquid storage box, and a filtering mechanism is arranged at the other end of the supporting rod. Through the structural arrangement of the filtering mechanism and the fixing and adjusting mechanism, filtering holes in the filtering box can be prevented from being blocked, meanwhile, metabolic waste and waste liquid can be treated respectively, the treatment efficiency is improved, the dialyzer can be fixed, the height of the dialyzer can be adjusted, and the dialyzer can be prevented from falling off and can be adjusted to the height suitable for the dialyzer.

The present application relates to the technical field of automatic peritoneal dialysis machine, and particularly relates to a peritoneal dialysis fluid constant-temperature supply and flow self-adaptive regulation and control system; comprising: a liquid supply driving module, a non-contact end heating module, a multi-dimensional signal sensing module and a temperature-pressure coupling multi-state collaborative control module; the present application introduces a non-contact electromagnetic resonance end heating structure and a temperature-pressure coupling multi-state collaborative control algorithm, on the one hand, uses air gap and high-frequency electromagnetic eddy current to realize safe endogenous heat of dialysis fluid in the pipeline, effectively avoids the risk of local thermal deformation and plasticizer precipitation of the pipeline caused by traditional contact heating, improves the biological safety of fluid infusion, constructs a feedforward defense mechanism based on the change rate of end temperature, and through extraction of the dynamic amplitude and static component of the hydraulic waveform, realizes accurate identification of cold stimulation spasm, regular physiological disturbance and pipeline mechanical obstruction, and after diagnosing mechanical obstruction, actively drives the stepping motor to perform reverse backflushing action.

The utility model relates to the field of medical treatment, in particular to a quantifiable dialysate filling device. The dialysate filling device capable of quantifying can seal the filling pipe when the filling pipe is folded, and waste caused by dialysate leakage is avoided. A quantifiable dialysate filling device comprises a base, a liquid storage barrel, a metering pump and the like, the upper side of the left portion of the base is connected with the liquid storage barrel, and the right side of the upper portion of the liquid storage barrel is connected with the metering pump. The sliding plate moves upwards under the action of threads, the first roller rotates and moves upwards along the first guide frame, the extrusion frame is driven to move rightwards, the extrusion frame moves rightwards to extrude the sealing frame, the sealing frame is driven to move downwards to be closed, and the lower portion of a canning pipe is blocked. And the effects that the canning pipe can be blocked when the canning pipe is folded, and waste caused by dialysate leakage is avoided are achieved.

Extracorporeal blood treatment device comprising a hydraulic system (B) with several lines (7, 9) for supplying dialysate for dialysis treatment and a control system (15) comprising at least one electrical component (17A, 17B, 17C), wherein the hydraulic system (B) has at least one port (11) for the inflow of a fluid into the extracorporeal blood treatment device, and the extracorporeal blood treatment device has a cooling device (19) for cooling the at least one electrical component (17A, 17B, 17C) of the control system (15), which has at least one liquid-coolable cooling element (21) which is in thermal contact with the at least one electrical component (17A, 17B, 17C) of the control system (15), wherein the cooling device (19) has at least one inlet (22A) which is in fluid communication with the port (11) for the inflow of a fluid.and has at least one outlet (22B) which is in fluid communication with a drain (10, 31), and wherein the cooling element is designed such that the liquid flows through the cooling element (21) and the thermal contact between the at least one electrical component (17A, 17B, 17C) of the control system (15) and the cooling element (21) is a contact contact, characterized in that the permeate supplied centrally to the device for extracorporeal blood treatment is used as the cooling liquid for the cooling element (21).

The utility model relates to the technical field of peritoneal dialysis, in particular to a peritoneal dialysis fluid pipeline capable of accurately controlling the amount of children and achieving pressurized perfusion for adults, which comprises a waste fluid bag, an injector, a fluid inlet bag and a connecting pipe, a first catheter is connected between the waste fluid bag and the connecting pipe, and a second catheter is connected between a nipple of the injector and the connecting pipe. And a third catheter is connected between the nipple of the injector and the liquid inlet bag. After an operator connects the connecting pipe to an external short pipe of a patient and waste liquid in the abdominal cavity of the patient is completely discharged, the operator clamps and closes the first catheter and the second catheter and opens the third catheter at the same time, the operator can suck quantitative dialysate into the injector, and finally the third catheter is closed and the second catheter is opened, so that the dialysate in the abdominal cavity of the patient is completely discharged. An operator can inject the dialysate in the injector into the abdominal cavity of a patient, quantitative injection of dialysis is achieved, and the problem that it is difficult for the operator to inject the dialysate with the accurate amount into the abdominal cavity of an underage child is solved on the whole.

To provide an object liquid purifier that allows dialysis to be performed in a reliable manner, and allows the concentration of an object substance in blood to be measured accurately while reducing a total amount of dialysis solution used in the dialysis without needing to collect blood, which is structured to be simple and so safe as not to affect a human body.SOLUTION: An object liquid purifier includes: a body part 1; a concentration measuring device 2; a control device 3; and a notification device 4. The body part 1 includes a separation device 100, an unpurified object liquid passage 11, a purified object liquid passage 12, a filtration dialysis drainage passage 21, a dialysis solution passage 412, a drainage passage 24, a first flow rate adjusting device 36, and a concentration sensor 35 for outputting a signal according to the concentration of an object substance in the object liquid. The concentration measuring device 2 measures the concentration of the object substance in the object liquid on the basis of the output signal of the concentration sensor 35.SELECTED DRAWING: Figure 1

To provide a personal dialysis machine that allows for visual confirmation of the remaining amount of concentrated dialysis solution with a simple configuration, while suppressing cost increases. [Solution] The personal dialysis machine 100 includes drug solution tanks 95, 96 and drug solution solenoid valves 81, 82 for storing drug solution for cleaning the piping 5, and concentrate tanks 93, 94 and concentrate solenoid valves 83, 84 for storing concentrate for dialysis fluid, and includes a drug solution concentrate usage determination unit 51 that determines the amount of at least one of the drug solution and concentrate that has been drawn up by the pump 86, a drug solution concentrate remaining amount calculation unit 52 that calculates the remaining amount of drug solution concentrate based on the amount determined by the drug solution concentrate usage determination unit 51, a drug solution concentrate remaining amount determination unit 55 that determines whether the remaining amount of drug solution concentrate is less than a predetermined standard amount, and a display unit 60 that displays a fact if the remaining amount of drug solution concentrate is less than a predetermined standard amount.

The embodiment of the utility model provides a concentrated liquid supply pipeline purging device which comprises a liquid storage tank, a liquid supply pipeline, a first liquid discharge pipeline, a first liquid discharge valve and a blowing assembly, and the liquid storage tank is used for storing dialysate; the liquid supply pipeline is connected with the liquid storage tank, and the liquid supply pipeline is provided with a liquid supply port for supplying liquid to the hemodialysis device; the first liquid discharge pipeline is connected with the liquid supply pipeline; the first liquid discharge valve is arranged on the first liquid discharge pipeline; and the air blowing assembly is connected with the liquid supply pipeline. After the hemodialysis device finishes treatment of a patient on the same day, the air blowing assembly can be used for blowing liquid in the liquid supply pipeline to be dry, so that the interior of the liquid supply pipeline is kept dry, and bacteria are not prone to breeding. The dialysate in the liquid storage tank can be conveyed to the liquid supply pipeline before the patient is treated on the next day, compared with the prior art, the time consumed for replacing the dialysate in the liquid supply pipeline is short, pure water and the dialysate consumed for replacing the dialysate overnight are saved, and efficient replacement of the dialysate in the supply pipeline is facilitated.