133 results about "Extracorporeal circulation" patented technology

The invention discloses a postoperative sub-delirium syndrome risk prediction system for a cardiac surgery patient, and relates to the technical field of medical treatment, and the system comprises a clinical data collection module which is used for collecting multi-dimensional clinical data of the cardiac surgery patient in a perioperative period under extracorporeal circulation, the data comprises patient baseline information, preoperative neurocognitive function evaluation indexes, intraoperative physiological parameters and postoperative early-stage vital signs; and the risk identification module is used for utilizing a single-factor statistical analysis mechanism. According to the postoperative sub-delirium syndrome risk prediction system for the cardiac surgery patient, accurate prediction of the sub-delirium syndrome risk is achieved by collecting multi-dimensional clinical data of the patient in the perioperative period, such as baseline information, preoperative neurocognitive function, intraoperative physiological parameters and postoperative early-stage vital signs; the independent risk factors are scientifically screened and quantified by using single factor analysis and a multivariate Logistic regression model, and the problem of incomplete data dimensions in traditional evaluation is effectively solved.

A blood pump-oxygenator system (250A, 250B, 250C) for increasing perfusion and oxygen levels in the body of a patient (P), comprising: a blood inlet (80) and a blood outlet (90) connected to form a circuit operable as a cardiopulmonary bypass system suitable for extracorporeal treatment of the blood of the patient; a first blood pump (11) and a first oxygenator (20), wherein the first blood pump (11) is configured to deliver blood from the patient (P) through the circuit to the blood inflow port (80), through the first oxygenator (20), out of the blood outflow port (90) and back to the patient (P). The system further comprises a second blood pump (13) and a second oxygenator (21), wherein the second blood pump (13) is configured to deliver blood from the patient (P) through the circuit to the blood inflow port (80), through the second oxygenator (20), out of the blood outflow port (90) and back to the patient (P). The circuit comprises a first branch (101) and a second branch (102) arranged in parallel with each other, the first branch (101) accommodating the first blood pump (11) and the first oxygenator (20), and the second branch (102) accommodating the second blood pump (13) and the second oxygenator (21). The system further comprises a pump control unit (290) wherein the first and second blood pumps (11, 13) are configured to be controlled by the pump control unit (290) to increase or decrease the blood flow through the corresponding oxygenator (20, 21) by changing the proportion of the blood flow through the first and second oxygenator (20, 21).

The utility model discloses a blood extracorporeal circulation device, which belongs to the technical field of blood extracorporeal circulation equipment and comprises an inner tube and an outer tube, the inner tube and the outer tube are integrally nested, one end of the outer tube is connected with an air inlet tube, the air inlet tube is communicated with oxygen inlet equipment, and the other end of the outer tube is connected with an air outlet tube. A temperature changer and a flow speed controller are connected between one end, far away from the air outlet end, of the outer pipe and the oxygen inlet equipment; one end of the inner tube is a liquid inlet end for transporting blood, the other end of a blood inlet of the inner tube is a liquid outlet end, and the liquid outlet end is connected with a temperature sensor, an oxygen saturation sensor, a blood pump and a microembolus filter; the part, in the outer pipe, of the inner pipe is made of a gas exchange membrane material, and the liquid inlet end of the inner pipe is opposite to the gas inlet pipe of the outer pipe. The blood temperature rising process is safer, meanwhile, in the blood temperature rising process, the oxygen saturation index in the blood can be directly adjusted, the blood oxygen value is simple, convenient and controllable on the basis of convenient temperature rising, temperature control and oxygen saturation of in-vitro blood circulation are carried out at the same time, and operation is easy and safe.

An extracorporeal circulation system (10) is provided with: a holder unit (12) integrally having a holder part (18) to which an artificial lung (100) is attached, and a pump drive part (20) for rotating a blood pump (110); and an input part (67) provided separately from the holder unit (12). The holder unit (12) has a pump control part (52) that controls the pump drive part (20) on the basis of information from a sensor for measuring physical property parameters in the circuit and information from the input part (67).

The purpose of the present invention is to provide, inter alia, a management device having a display or another display unit that is easy for a user to visually recognize. A management device (10) manages an extracorporeal circulation device (1) that has an artificial lung device (2), a pump unit (3), and an extracorporeal circulation circuit (IR). The management device (10) has a control unit (111) and a display unit (113) that displays various types of information relating to the extracorporeal circulation device (1). The control unit (111) groups together various types of information (P1) relating to the extracorporeal circulation device (1) into a plurality of groups on the basis of preset relevance information. The display unit (113) has an aggregation display region in which the various types of information belonging to the respective groups are disposed in an aggregated manner.

A device including a display unit that is easily visually recognized by a user, an extracorporeal circulation device including the management device. A management device manages an extracorporeal circulation device including an oxygenation device, a pump unit, and an extracorporeal circulation circuit IR, and includes a display unit that displays various types of information regarding the extracorporeal circulation device, the display unit includes a first display area in which fixed information that is fixed in advance is displayed, and a second display area configured in such a manner that the displayed information is changeable, in which trend graph information of the fixed information displayed in the first display area is displayed in the second display area, and non-fixed information related to the fixed information is displayed.

Provided is an extracorporeal circulation system, which includes an arterial sheath, an inflow tube, a handle, an outflow tube, and a venous sheath that are connected in sequence. The arterial sheath is used for connecting to a carotid artery, and the venous sheath is used for connecting to a vein. The handle includes a housing, as well as a flow controller, a blood filter, and a one-way check valve that are arranged in the housing and are communicated in sequence. The flow controller is connected to the end of the inflow tube away from the arterial sheath, and the one-way check valve is connected to the end of the outflow tube away from the venous sheath. The flow controller includes one body element with a flow-through channel and a flow control element. At least part of the flow control element is received in the body element and is movably connected to the flow-through channel. The flow control element reduces or increases the circulation area of the flow-through channel under an external force. Reverse blood flow from the carotid artery to the femoral vein can be established by using the extracorporeal circulation system of the present invention, thereby preventing a falling thrombus from entering the brain during surgery.

The application discloses a temperature-strain dual-function sensor for extracorporeal circulation system monitoring, and relates to the technical field of flexible electronics and biomedical engineering. The sensor adopts a three-layer stacking structure, and comprises, from top to bottom, a piezoresistive strain response layer based on a silver / graphene / poly(3,4-ethylenedioxythiophene):polystyrene sulfonate composite conductive film, a thermoplastic polyurethane nanofiber heat insulation isolation layer and a temperature sensitive layer based on a graphene / poly(3,4-ethylenedioxythiophene):polystyrene sulfonate composite conductive hydrogel. The temperature-strain dual-function sensor for extracorporeal circulation system monitoring prepared by the application exhibits high sensitivity and fast response characteristics in temperature and strain sensing, and simultaneously exhibits excellent cycle stability and long-term reliability under repeated deformation.

This invention belongs to the field of extracorporeal circulation monitoring technology and discloses a multi-parameter linkage monitoring system for an artificial heart-lung machine, including an artificial heart-lung machine circuit, a detection component, an execution component, and a controller. The artificial heart-lung machine circuit includes a venous drainage line, a blood reservoir, a blood pump, a membrane oxygenator, an arterial perfusion line, and a gas supply line. The detection component is used to detect venous pressure, fluid level, pressure before and after the membrane oxygenator, arterial perfusion flow rate, blood oxygen, and gas supply pressure and flow rate. The controller performs time alignment on the detection signals within the same sampling period and, combined with changes in similar detection signals in adjacent sampling periods, distinguishes between insufficient drainage, increased membrane oxygenator resistance, and abnormal gas supply, outputting corresponding deceleration, speed limiting, gas supply adjustment, gas supply switching, pump shutdown, alarm, and lockout control signals. This system is used for linkage monitoring and control of abnormal sources in the extracorporeal circulation circuit.

An extracorporeal blood treatment apparatus (100) comprises: a treatment unit (200); an extracorporeal blood circuit (300) comprising a blood withdrawal line (301) connected to the treatment unit (200) and connectable to a first access port (A) or a second access port (B) of a patient and a blood return line (302) connected to an outlet (202) of the treatment unit (200) and connectable to the second access port (B) or the first access port (A) of the patient; a switching valve (1) in fluid communication with the blood withdrawal line (301) and the blood return line (302) and with the first access port (A) and the second access port (B), which is switchable between: (i) a first switching condition, wherein the first access port (A) and the second access port (B) are respectively fluidly connected to the blood withdrawal line (301) and the blood return line (302) to trigger a normal mode of operation; (ii) a second switching condition, wherein the first access port (A) and the second access port (B) are respectively fluidly connected to the blood return line (302) and the blood withdrawal line (301) to trigger a reversing mode of operation wherein blood coming from the patient is circulated through the treatment unit (200) according to an opposite / reverse direction and returned to the patient; (iii) a third switching condition, wherein the first access port (A) and the second access port (B) are fluidly connected to each other and the blood withdrawal line (301) and the blood return line (302) are fluidly connected to each other to trigger a recirculation mode, wherein the extracorporeal blood circuit (300) is not in fluid communication with the first (A) and the second access port (B).

In the present invention, a control unit (90) of an extracorporeal circulation device (1) capable of ensuring an ideal blood flow rate for a patient when performing VA-ECMO comprises: a calculation unit (91) that calculates an ideal flow rate and pump head pressure from patient-specific information; and a transmission unit (92) that transmits, to a fluid replacement device (70) for performing fluid replacement, water amount data obtained through measurement by a measurement device (80) for measuring the water amount of the patient. The control unit (90) gives a fluid replacement instruction to the fluid replacement device (70) via the transmission unit (92) on the basis of the pressure of the inside of a blood circuit (20) measured by pressure measurement units (45, 46), the flow rate of the inside of the blood circuit (20) measured by a flow rate measurement unit (47), and the water amount data obtained through measurement by the measurement device (80).

The present invention relates to a medical device characterized by a central venous catheter (CVC) for obtaining extracorporeal blood circulation in order to carry out various purification methods. In particular, the present invention relates to a device for reversing the flow in a central venous catheter (CVC) branch for extracorporeal circulation, comprising at least two connections (2) (3) for CVC, two connections (4) (5) for extracorporeal circulation, and a carriage (7) sliding on a track (10), in which carriage a plurality of links (6) are provided, there is a series of lumens (9) for connecting the CVC connectors (2) (3) with the lines (4) (5) for extracorporeal circulation. Since a series of lumens (9) integrated in a carriage (7), which slides on a track (10) without the need to manipulate and open the CVC and extracorporeal circulation, are preferably slidably mounted in the support assembly (1) of the CVC, the invention allows the blood flow of the CVC branches (2) (3) to be reversed, preferably by direct action on a switch (11) acting on the carriage (7).

A renal replacement apparatus (100), having a hemofilter (108); an extracorporeal blood circuit (102) configured to communicate blood from a patient (104), through the hemofilter, and back to the patient; and a flow measuring device (150) configured to measure at least one blood flow property as the blood is leaving the hemofilter and before the blood returns to the patient at a flow measuring device location (152), wherein the flow measuring device comprises at least one of a viscometer and a rheometer. Alternately, or in addition, the renal replacement apparatus may include thermomodulator system (222) including at least one thermomodulator configured to selectively heat and cool the blood in the extracorporeal blood circuit. The renal replacement apparatus (100) may have a controller (160). The controller may use artificial intelligence. Other embodiments are described herein.

The invention relates to a method and equipment for calculating the blood temperature of a patient in hemodialysis treatment, and the method comprises the following steps: obtaining geometric parameters and physical parameters of an extracorporeal circulation pipeline of hemodialysis, so as to establish a transient heat transfer model for representing the spatial-temporal dynamic change of the blood temperature in the extracorporeal circulation pipeline; acquiring operation parameters corresponding to the hemodialysis process, and constraining the transient heat transfer model by using the operation parameters to generate a constrained heat transfer model used for reflecting a heat exchange boundary condition in a real-time dialysis scene; carrying out numerical solution on the constrained heat transfer model so as to generate temperature field distribution data for representing the temperature of each part in the extracorporeal circulation pipeline under the preset dialysis duration; and extracting a temperature value corresponding to the position of the blood outlet of the extracorporeal circulation pipeline as the temperature of the blood outlet. The device has the advantage of better maintaining heat balance and safety of a patient in the treatment process.

The invention relates to an extracorporeal blood treatment apparatus comprising a blood treatment unit 1 that is divided by a semipermeable membrane 2 into a first compartment 3, which is part of a fluid system II, and a second compartment 4, which is part of an extracorporeal blood circuit I. The invention also relates to a method for operating a blood treatment apparatus of this kind. The blood treatment apparatus according to the invention has a pressure-based checking device 32 which interacts with the control unit 31 for a valve device 21 and is designed such that a fluid connection between an upstream portion 20A and a downstream portion 20B of a flow path 20 for a special operating mode can only be established if the pressure-based checking device 32 detects an operating state in which it is ensured that fluid in the flow path 20 for a special operating mode flows towards a flow path 10 leading to a drain 11. This ensures that the fluid in question can only flow into the flow path 10 that leads to the drain 11, and cannot get into another flow path 8 in which fresh treatment fluid is located.

The invention relates to a patient blood temperature prediction model switching method based on computing power difference and a related device. The method comprises the steps that fixed parameters and operation parameters of a hemodialysis extracorporeal circulation pipeline are obtained; based on current computing power or user preferences, the decision enables a precision mode or an efficiency mode. When the precision mode is started, a progress monitor is started to monitor the calculation duration of the complete model; if the calculation is completed within the preset duration, extracting an outlet prediction temperature from a temperature field generated by the complete model; and if the calculation is overtime, stopping the calculation and switching to the efficiency mode. When the efficiency mode is started, inputting the fixed parameters and the operation parameters into a pre-trained bridging model to calculate a group of model coefficients; and calculating to obtain the outlet predicted temperature by using the simple model and the model coefficient. The method has the advantage of balancing calculation precision and real-time responsiveness.

The utility model relates to heart and lung surgery extracorporeal circulation instrument technical field, especially point to a kind of intubation for aortic perfusion, it includes pipe head, tube body and balloon, pipe head and tube body are all hollowly arranged, and blood perfusion passage is formed in tube body;The front end of pipe head is communicated with the rear end of tube body, and the sidewall of the front end of tube body is respectively provided with first through-hole and second through-hole, first through-hole is located inside balloon, and the both sides of tube body are respectively provided with balloon channel and exhaust channel, the rear end of balloon channel is connected with first lead-out pipe, the rear end of exhaust channel is connected with second lead-out pipe, the rear end of first lead-out pipe is provided with first valve, and the rear end of second lead-out pipe is provided with second valve.The utility model realizes the inflation of balloon, realizes the blockage of blood vessel;The gas generated in perfusion blood supply process is extracted, and the effectiveness of perfusion blood supply is further improved;Blood perfusion passage, balloon channel and exhaust channel are respectively separated and independently work, and work reliably and stably.

The invention provides an extracorporeal circulation direct-view patent foramen ovale suturing device, and relates to the technical field of surgical instruments. The main body is of a circular rod-shaped structure, an external thread is arranged on the main body, and a limiting ring is fixedly mounted below the outer side of the main body; two sets of turnover frames are arranged in an end groove in the main body, each set of turnover frame is rotationally matched with the end groove through a torsion spring, each set of turnover frame can turn over by 90 degrees towards the outer side of the end groove, a push block is driven by a control rod to achieve unfolding and folding of the turnover frames, and the functions of guiding movement of a sliding piece and storage of a rotating piece are matched, so that surgical operation is simpler, more convenient and more controllable; the suture needle is quickly mounted through the fixing groove, and the suture line sequentially penetrates through the threading groove, so that the suture needle punctures the inner wall of the heart at a time in the operation process, the slipping phenomenon is avoided, the operation time is shortened, and the problems that a traditional plugging device needs to accurately match the size of an oval hole, model selection is limited and operation is inconvenient are solved. And the closing effect of the oval foramen with irregular shapes is not ideal.

The utility model discloses an extracorporeal circulation pipeline bending corrector which is characterized by comprising a circulation pipeline and a correcting mechanism, the correcting mechanism comprises a correcting spring connected to the outer side of the circulation pipeline in a sleeved mode, a fixing base is arranged on one side of the correcting spring, and an adjusting base is arranged on the other side of the correcting spring. A pull wire is fixedly mounted on one side of the fixed seat, an adjusting bolt is rotatably mounted on one side of the adjusting seat, the other end of the pull wire is fixedly mounted on the adjusting bolt, a worm is rotatably mounted in the adjusting seat, connectors are arranged on one side of the fixed seat and one side of the adjusting seat respectively, and connecting nuts are in threaded connection with the outer sides of the connectors. By arranging the correcting mechanism, automatic recovery of the circulating pipeline is driven through the self-recovery effect of the correcting spring, meanwhile, the correcting spring is bent by contracting the pull wire, then the circulating pipeline is driven to be bent through the correcting spring, and the situation that when the bending angle of the circulating pipeline is too large, the circulating pipeline is blocked after being bent is avoided.

The application discloses a method for adjusting the pressure of a main pump in an extracorporeal circulation process, and the method comprises the following steps: after the pre-charging of a membrane oxygenator is completed, an arterial pipeline connected with the membrane oxygenator is clamped and closed, and only a small side pipeline is left to communicate with the membrane oxygenator; a pump pressure gauge is arranged on the small side pipeline; the main pump is adjusted to a required position, and the pressure of the main pump on the circulating pipeline is adjusted, and the pressure is adjusted to 150mmHg-250mmHg. The specific pressure value of the main pump when the pressure is adjusted is displayed by the pump pressure gauge, so that the adjustment process and result can be visualized, the adjustment result is converted into the specific pressure value of the pump pressure gauge, the reference data of the adjustment of the pressure of the main pump is standardized, the adjustment precision is effectively ensured without relying on experience and feeling, the adjustment mode is quick and accurate, the adjustment efficiency can be improved, and the stability of the adjustment pressure is ensured by controlling the pressure of the main pump, so that the backflow of arterial blood caused by unstable pressure can be avoided.

A system for regulating blood flow in extracorporeal circulation, and including a blood reservoir to receive blood from a patient, an oxygenator to condition the blood, a centrifugal pump to pump the blood from the blood reservoir to the oxygenator and back to the patient, an electronic remote clamp to regulate flow of the blood, and a controller to operate in a flow control mode and a speed control mode. The controller includes an operational element to set a blood flow value in the flow control mode and to set a speed of the centrifugal pump in the speed control mode. The controller to automatically switch between the flow control mode and the speed control mode in response to one or more trigger conditions and to automatically switch between the speed control mode and the flow control mode in response to opening the electronic remote clamp.

The application relates to an extracorporeal circulation detection device. The method comprises a control module, an impedance detection module and a temperature detection module, the control module being connected with the impedance detection module and the temperature detection module; the impedance detection module is arranged at a plurality of preset positions of the head of a to-be-detected object, is used for detecting impedance data of the brain of the to-be-detected object in real time, and is connected with the control module; the temperature detection module is arranged at a plurality of preset positions of the body of the to-be-detected object, is used for detecting body temperature data of the to-be-detected object in real time, and is connected with the control module; the control module is connected with an extracorporeal circulation device, is used for acquiring real-time setting temperature of the extracorporeal circulation device, and determines the state of the extracorporeal circulation device when the extracorporeal circulation device performs extracorporeal circulation on the to-be-detected object according to the impedance data, the body temperature data and the real-time setting temperature. The method can comprehensively and efficiently detect the state of the to-be-detected object in extracorporeal circulation.

This invention discloses a method for controlling left and right ventricular compression before extracorporeal circulation. First, in an in vitro environment, peristaltic pumps are installed at the left and right ventricular inlets of the extracorporeal circulation device. Then, an inlet pump is connected to the inlet of the peristaltic pumps, and an outlet pump is connected to the outlet of the peristaltic pumps. Finally, a first pressure measuring structure and a second pressure measuring structure are respectively installed on the side of the inlet and outlet pumps away from the peristaltic pumps, and the pressure of both the inlet and outlet pumps is adjusted to -180 mmHg. The negative pressure of the inlet pump is adjusted by the first pressure measuring structure, and the negative pressure of the outlet pump is adjusted by the second pressure measuring structure, thereby quantifying the adjustment method. This visualizes the process of controlling left and right ventricular compression before extracorporeal circulation, converting the adjustment results into specific negative pressure values ​​for the inlet and outlet pumps. This makes the reference values ​​for adjusting left and right ventricular compression numerically and standardized, avoiding adjustment discrepancies, eliminating reliance on experience and intuition, and providing a quick and highly accurate adjustment method.

The invention provides a multi-channel composite connection monitoring pipeline structure integrated with NO infusion. The multi-channel composite connection monitoring pipeline structure comprises an infusion catheter, an oxygen input connector, a rotary conversion connector, an NO injection tee joint, a gas sampling tee joint, an oxygen flow sensor and a mixed gas flow sensor. NO is injected into the infusion catheter through the NO injection tee joint and is mixed with oxygen in the infusion catheter, the gas sampling tee joint is located on the downstream of the first connecting pipe of the infusion catheter to obtain stable mixed gas for real-time concentration monitoring, and the two flow sensors are used for monitoring the oxygen and the gas flow after the NO and the oxygen are mixed in real time respectively. The rotary adapter is quickly compatible with a nasal catheter, a mask and an extracorporeal circulation related interface, so that cross-scene seamless connection of intraoperative and postoperative NO treatment is realized. According to the invention, the frequency of pipeline replacement is reduced, the risks of gas leakage, misconnection and pollution are reduced, the stability and controllability of oxygen and NO gas delivery are improved, and the safety and effectiveness of NO infusion are improved.

The invention discloses a portable hemodialysis instrument capable of preventing a loop from being blocked, and relates to the technical field of hemodialysis instruments. The blood pumping device comprises a shell, a reciprocating driving mechanism is arranged in the shell, a piston film is fixedly installed in a loop cavity in the shell, the reciprocating driving mechanism drives the piston film to reciprocate for blood pumping operation, and a sealing cover is fixedly installed at the end of the shell. According to the device, blood enters extracorporeal circulation through the connecting end, the flow monitoring mechanism monitors the blood flow of the blood inlet end and the blood return end in real time, when it is detected that the flow of the blood inlet end is obviously lower than the flow of the blood return end, it is indicated that thrombus is possibly formed or blockage is likely to happen in a loop, and at the moment, the anti-coagulation and anti-blocking mechanism is immediately started; the blood inlet pipeline is accurately filled with anticoagulant, initial thrombus is actively dissolved, and blockage expansion is prevented, so that manual shutdown cleaning in the background technology is avoided, dialysis continuity and safety are guaranteed, and one-way flowing of blood is guaranteed through the one-way valves on the two connecting ends.

The utility model discloses a buckle device for fixing an extracorporeal circulation pipeline in a cardiac surgery, which comprises a buckle main body, the buckle main body comprises a bearing plate, one side of the bearing plate is provided with an extending plate, and the other side of the bearing plate is provided with a fixing adhesive tape; a plurality of clamping grooves are formed in the side, away from the bearing plate, of the extending plate, the side, away from the bearing plate, of each clamping groove is provided with an opening, and a guiding part is arranged at the opening of each clamping groove; a mounting groove is formed in the lower portion of the clamping groove, and a locking elastic piece is arranged on the mounting groove and used for limiting one-way twitching of the extracorporeal circulation pipeline. The guide part at the opening of the clamping groove can help medical staff to quickly and accurately embed the pipeline into the clamping groove, so that the installation time is shortened, and the operation efficiency is improved; the locking elastic piece on the mounting groove can limit one-way twitching of the pipeline, which is particularly important in extracorporeal circulation surgery, and the situation that the pipeline twitches in the direction away from an operating table due to accidental factors, and unnecessary medical accidents are caused can be prevented.

The invention discloses an extracorporeal circulation type bovine gall-stone preparation device and method, and relates to the field of artificial calculus bovis preparation. The device comprises a bile storage tank, double peristaltic pumps, a three-way valve, a tubular reaction unit, a constant-temperature heating jacket, a pH adjusting unit, a controller, an optional concentration unit and the like. The method comprises the following steps: preparing bile reaction liquid containing a lithogenic precursor, initializing parameters, starting a device, and circulating the reaction liquid; adjusting the pH value, concentrating to form a supersaturated environment for nucleation, simulating pulse flow at a periodic variable flow rate to promote dynamic growth, and finally harvesting, cleaning and drying. The gallbladder environment is simulated, living body dependence is avoided, the stone forming period is short, the similarity of the product and natural calculus bovis is high, and automatic large-scale production can be achieved.

The application relates to the technical field of medical devices, and provides a blood purification system, a control method thereof and a storage medium, the blood purification system comprising: a purification module comprising an adsorption device and a dialysis filter arranged in series, the adsorption device being used for adsorbing and removing endotoxins and cytokines in blood; a liquid circulation loop module comprising a pipeline assembly and a power device, the pipeline assembly being used for constructing an extracorporeal circulation loop connected with the purification module, providing a flow channel for liquid, and the power device being used for providing power for liquid flow; a data acquisition module used for acquiring key data of the operation of the blood purification system; and a control module used for controlling the operation of the liquid circulation loop module according to the key data fed back by the data acquisition module. The application improves the reliability and easy operability of the blood purification system.