357 results about "Blood purification" patented technology

The utility model discloses a double-suction double-discharge reciprocating injection pump which comprises a pump body, a liquid inlet pipe and a liquid outlet pipe, two pistons are arranged in an inner cavity of the pump body at intervals in the length direction, the two pistons are movably assembled with the inner cavity of the pump body in a sealing mode, and the inner cavity of the pump body is divided into a first closed cavity, a sterilization air cavity and a second closed cavity by the pistons, a linkage rod located in the sterilization air cavity is arranged between the two pistons; one end of the pump body is provided with a first interface and a second interface which are respectively communicated with the first closed cavity, the other end of the pump body is provided with a third interface and a fourth interface which are respectively communicated with the second closed cavity, the first interface and the third interface are both communicated with the liquid inlet pipe, and the second interface and the fourth interface are both communicated with the liquid outlet pipe; one-way valves are arranged in the first connector, the second connector, the third connector and the fourth connector respectively. The liquid balance device can solve the problem of liquid balance of continuous blood purification equipment in a vibration impact environment of a moving occasion, simplifies the principle, and improves the reliability.

The invention discloses an intelligent monitoring method and system for blood purification, and the method comprises the steps: constructing a monitoring subsystem comprising two sets of independent sensor networks, collecting and processing key physiological parameters in a blood purification process in parallel, and obtaining a parameter data flow subjected to preliminary verification; a blood purification system execution mechanism is controlled through a self-adaptive task space nonsingular terminal super-distortion sliding mode control algorithm, and a control instruction is obtained; redundancy detection and cross validation of parameter abnormity are realized through a dual-channel comparative analysis algorithm, and an abnormity detection result is obtained; analyzing data features of the patient in the treatment process through a deep learning model, predicting potential risks, and obtaining intelligent intervention suggestions; a data management and traceability system is constructed through a distributed database technology and a block chain verification mechanism. According to the invention, the accuracy and stability of blood purification monitoring are greatly improved; redundant anomaly detection and an intelligent aid decision-making system are adopted, so that the risk prediction and anomaly coping capability is remarkably improved.

To enable water removal control that can respond to various patients and the conditions of each patient, and that can perform efficient water removal treatment while reducing the burden on the patient. [Solution] The device has a memory unit that stores the water removal achievement rate at a specified elapsed time during blood purification treatment, and a calculation unit that sets a water removal profile in which the water removal rate gradually decreases from the start to the end of blood purification treatment, and the calculation unit is equipped with a water removal rate determination unit that determines the water removal rate for a specified time at a specified elapsed time based on the water removal achievement rate.

This invention discloses a blood purification device and medical system. The blood purification device includes: a device housing; a blood purifier; a blood tubing assembly, the blood tubing assembly including a first blood tubing connecting a human blood vessel to the inlet of the blood purifier and a second blood tubing connecting the outlet of the blood purifier to the human blood vessel; a power assembly including a blood pump for driving blood flow within the blood tubing assembly, a first replenishment pump for allowing anticoagulant solution to flow into the first blood tubing, and / or a second replenishment pump for allowing calcium solution to flow into the second blood tubing; and a blood component analysis component disposed within the device housing, the blood component analysis component being used to detect collected blood samples. This design facilitates the appropriate adjustment of anticoagulant drugs and calcium ions in the blood purification circuit.

To provide an estimation method of a recirculation rate enabling estimation of a recirculation rate without being limited by a preparation location of a blood marker or an arrangement location of detection means of the blood marker.SOLUTION: An estimation method of a recirculation rate includes the steps of: acquiring data representing an amount of change in blood concentration after recirculation when a blood marker is added to blood to be extracorporeally circulated, data representing a relation between an amount of change in blood concentration after recirculation and blood concentration, and data representing a relation between the amount of change in blood concentration after recirculation and a blood flow rate; creating a model by multivariate analysis or machine learning to obtain a regression equation or a conversion model, with the amount of change in blood concentration after recirculation, blood concentration and a blood flow rate used as an explanatory variables and the recirculation rate as an objective variable; acquiring data representing the amount of change in blood concentration, blood concentration and a blood flow rate of blood flowing through an arterial line or a venous line; and inputting treatment data to the regression equation or the conversion model to estimate the recirculation rate.SELECTED DRAWING: Figure 3A

The invention relates to the crossing field of computer technology and edge calculation, and discloses a blood purification equipment real-time control method based on edge calculation. According to the method, multi-modal real-time physiological parameters, historical dialysis data and a current treatment target are fused through a local edge calculation unit, an individualized body fluid dynamic response prediction model is constructed, and an ultrafiltration rate instruction is optimized and generated within a millisecond level; the system comprises a multi-mode sensor array, a historical data storage module, a task planning interface, an edge computing unit and an ultrafiltration pump controller. According to the application, the hemodynamic state is accurately maintained, the risk of hypotension is remarkably reduced, and the treatment safety and individualization level are improved.

The invention relates to the technical field of blood purification, and particularly discloses an integrated blood purification pipeline consumable device which comprises a main body bracket, and an artery pipeline assembly, a dialysis filter, a vein pipeline assembly, a pre-flushing piston assembly, a liquid inlet tank assembly and a liquid outlet tank assembly which are mounted on the main body bracket. The key core problem solved by the invention is to integrate treatment consumable pipelines and integrate a plurality of auxiliary function modules, so that the operation convenience of medical staff is greatly improved on the premise of ensuring treatment; by configuring an automatic pre-flushing function, a heparin injection function, a quantitative system and the like, the operation process of ultralight portable blood purification equipment matched with the device can be simplified, the size and the weight of the equipment are reduced, and the equipment is suitable for wider and more complex application environments; the method can be used for early treatment of severe wounded persons in modern wars, emergency supplement of conventional dialysis treatment patients, disaster relief without traditional dialysis conditions, self-treatment of patients in emergencies and the like, and has wide application prospect and practical value.

The invention relates to the technical field of blood purification, in particular to a blood purification pipeline integration device which comprises an integration disc, a degassing kettle assembly structure arranged on the integration disc, a plurality of flow channels integrated on the integration disc and used for conveying fluid and a plurality of pipeline placement units. The functional structure of the pipeline placement unit can be a pump pipe fixing structure or presented in the form of a flow channel; pressure monitoring devices are arranged on the flow channels, and pipeline connectors are arranged at the two ends of each flow channel. The device can adapt to various treatment modes, is high in integration degree, is convenient to transport, is not liable to scatter when a package is removed, facilitates the reduction of the pipeline combing time of medical workers, and improves the working efficiency. The pressure monitoring device is integrated in the flow channel, additional pressure monitoring equipment does not need to be externally connected, and the advantage of being high in integration degree is achieved.

The invention relates to the technical field of blood purification, in particular to an anticoagulation pump which comprises a bottom plate, an injection pushing mechanism and a liquid medicine feeding mechanism, a hemodialysis machine is fixedly installed on the upper side of the bottom plate, a blood drawing pipe is fixedly arranged on one side of the hemodialysis machine, and an infusion tube is fixedly arranged on the other side of the hemodialysis machine; a round seat frame and a box body are fixedly connected to the upper side of the bottom plate, an injector is clamped in the round seat frame, heparin can be supplemented to the injector through the injection pushing mechanism, the injector, the box body and a piston rod, heparin can be continuously injected, blood is prevented from being coagulated in the hemodialysis machine, and the hemodialysis efficiency is improved. The hemodialysis purification device has the advantages that smooth flow of blood is guaranteed, the injector does not need to be replaced, time and labor are saved during operation, long-time interruption of heparin injection is avoided, improvement of the anticoagulation effect of hemodialysis purification is facilitated, the hemodialysis purification process can be smoothly performed, and meanwhile, the working efficiency of the anticoagulation pump is improved.

The invention belongs to the technical field of medical equipment, and discloses a movable continuous blood purification first-aid device which comprises a movable seat and further comprises a stabilizing mechanism arranged in the inner wall of the bottom end of the movable seat; the blood purification barrel is fixedly connected to the outer wall of the top end of the movable seat, and a cover plate is arranged on the outer wall of the blood purification barrel; the cleaning mechanism is arranged in the inner wall of the blood purification barrel; the mounting mechanism is arranged on the outer wall of the bottom end of the blood purification barrel, and an impurity output pipe is arranged on the inner wall of the mounting mechanism; wherein the stabilizing mechanism comprises a stabilizing plate; through cooperation of the stabilizing plate, the pedal A and other structures, the stabilizing plate can be moved downwards and fixed by treading the pedal A downwards, the stabilizing plate is kept in a state of being in contact with the ground, the overall stability of the device is improved, and then it is guaranteed that in the using process, it is avoided that the device topples over due to external force collision, and the blood purification operation is affected.

This product is a plastic container used in blood purification therapy.

1. Name of the product in this design: Nursing Treatment Vehicle (for use in blood purification centers). 2. Purpose of this design: for use in blood purification center nursing care. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view. 5. The bottom is not visible and has no design features; therefore, the bottom view is omitted.

The utility model provides a kind of blood purification device, comprising: cylinder, end piece and fibre bundle assembly, cylinder is provided with accommodating cavity, and the both ends of accommodating cavity have opening;Two end pieces are respectively detachably connected at the both ends of cylinder, and two end pieces are respectively used to seal the two openings of cylinder, and end piece is provided with flow-through port;Fibre bundle assembly includes hollow fibre bundle and connecting ring, hollow fibre bundle is accommodated in accommodating cavity, two connecting rings are respectively arranged at the both ends of hollow fibre bundle, and the end of hollow fibre bundle is connected with connecting ring by solidified adhesive layer, connecting ring is detachably connected in the inside of end piece, and connecting ring insulates solidified adhesive layer and end piece.The blood purification device provided by the utility model can replace hollow fibre bundle, which is conducive to reducing the manufacturing cost of blood purification device.

To provide a blood purification device that can accurately determine whether a venipuncture has been performed correctly in a patient. [Solution] The blood purification device 1 comprises a blood purifier 3 capable of purifying blood, a blood circuit 2 having an arterial blood circuit 21 with an arterial puncture needle 211 attached to its tip and a venous blood circuit 22 with a venous puncture needle 221 attached to its tip, an impedance measuring unit 5 having an oscillator 53 that applies an AC voltage between an arterial electrode 51 provided on the arterial blood circuit 21 and a venous electrode 52 provided on the venous blood circuit 22, and capable of measuring the frequency characteristics of the impedance between the arterial electrode 51 and the venous electrode 52, and a puncture determination unit 72 that determines whether the patient has been properly punctured based on the measured impedance frequency characteristics, and further comprises a frequency range determination unit 70 that determines the frequency range of the AC voltage applied by the oscillator 53 according to the liquid in the blood circuit 2.

The invention provides a method and a device for secondary filtration and re-removal of cholesterol ester after continuous blood purification and blood fat filtration, and belongs to the technical field of medical blood purification. According to the method and the device, the technology of combining enzymolysis, adsorption and membrane separation is adopted for residual CE in a CBP filtering product. The method comprises the following steps: firstly, decomposing CE into small molecules by using specific enzyme, and weakening the combination of CE and other components; residual impurities are further adsorbed through a high-performance adsorption material; and finally, efficient removal of CE is realized by virtue of a high-precision membrane separation technology, so that the residual quantity is reduced to be below a safety threshold value. Compared with a traditional technology, the problems that the CE-containing filtrate is high in recycling risk and low in resource utilization rate are effectively solved, the purity of a filtered product is remarkably improved, technical support is provided for industrial scenes such as plasma exchange, filtrate feedback, biopharmacy and extracorporeal circulation in the medical field, and the application prospect is wide. The safety and the resource utilization efficiency of the blood purification technology are promoted.

The application discloses a blood purification device and a storage medium. The device comprises a memory and a processor. The memory stores a computer program, and the processor executes the computer program to realize the method. When the actual rotating speed of a first peristaltic pump detected is greater than a preset rotating speed, the pressure alarm range of an arterial pipeline and the pressure sampling period of a first pressure sensor are determined according to the actual rotating speed of the first peristaltic pump. The first pressure sensor is controlled to periodically sample the blood pressure of the arterial pipeline according to the pressure sampling period, and a plurality of continuous first detection pressures are obtained. Whether the first peristaltic pump is stopped is determined according to the first average pressure of the plurality of continuous first detection pressures and the pressure alarm range of the arterial pipeline. In this way, the application can more accurately and timely discover the pressure fault of the arterial pipeline, and improve the blood flow safety of the arterial pipeline.

The utility model provides a bubble catcher and a blood purification system, and relates to the technical field of medical equipment.The bubble catcher comprises a shell, the shell comprises a top wall and a first side wall, the first side wall is obliquely arranged relative to the top wall, a liquid inlet hole is formed in the top wall, the first side wall is located on the extension side in the axial direction of the liquid inlet hole, and the first side wall is located in the extension side in the axial direction of the liquid inlet hole; liquid flowing out of the liquid inlet hole can fall on the first side wall; the fixing part is arranged on the outer wall of the shell, and the fixing part is used for being fixedly connected with the outside. According to the bubble capturer provided by the embodiment of the invention, the installation work of the bubble capturer can be simplified, and the situation that bubbles are generated or blood cells are damaged due to large fall during blood return can be reduced; meanwhile, due to the fact that the first side wall which is obliquely arranged can play a certain buffering role when the blood flows into the bubble catcher, the blood flow speed can be further increased, and the blood coagulation condition can be reduced.

The application belongs to the technical field of medical equipment, and particularly relates to a kind of anti-blocking CRRT blood purification pipeline, which comprises a pipeline main body, a branch pipe is communicated on the pipeline main body, a fixing plate is arranged at the end of the branch pipe away from the pipeline main body, a filter screen is arranged in the pipeline main body, a fall-preventing net is arranged on the filter screen, a pull rod is fixedly connected to the filter screen, a through hole I is formed in the fixing plate for the pull rod to pass through, a moving plate is fixedly connected to the end of the pull rod away from the filter screen, a soft film is arranged between the moving plate and the fixing plate, a sealed cavity is formed between the soft film, the moving plate and the fixing plate; a locking assembly is arranged between the moving plate and the fixing plate for locking the moving plate, and after the locking assembly releases the locking of the moving plate, the moving plate can move along the radial direction of the pipeline main body relative to the fixing plate. The application can intercept blood clots through the filter screen, and transfer the blood clots to the branch pipe, so as to effectively prevent the blood clots from blocking the blood purification pipeline.

The application belongs to the technical field of medical apparatus and discloses a pump pipe automatic mounting and dismounting device and blood purification equipment. The pump pipe automatic mounting and dismounting device comprises a shell, a chuck, a moving mechanism and a first position detection mechanism. A plurality of peristaltic pumps are arranged on the outer wall of the shell; a plurality of pump pipes are arranged on the chuck; the moving mechanism is arranged on the shell and comprises a driving piece, a transmission assembly and a connecting assembly, one end of the transmission assembly is in transmission connection with the driving piece, the other end is connected with the connecting assembly, and the connecting assembly can be detachably connected with the chuck; the first position detection mechanism is arranged on the shell and is used for detecting the relative position of the chuck and the peristaltic pump. The application can avoid manual installation and dismounting of the pump pipe by medical staff, save installation and dismounting time, reduce the operation strength and error risk of the medical staff, shorten the treatment time and improve the operation efficiency.

The invention relates to the technical field of medical instruments, and discloses a nursing device for assisting blood purification treatment, which comprises a medical box, a flip cover is hinged to the top surface of the medical box, a tourniquet is arranged in the medical box, the tourniquet is used for assisting blood purification treatment, and a buckle is clamped to the top of the tourniquet. The tourniquet and the treatment liquid medicine stored in the medical box are taken out to assist the treatment process, after treatment is completed, the tourniquet and the treatment liquid medicine are placed into the medical box again, then the turning cover is closed, storage is convenient, the use convenience of the device is improved, and the tightness of the tourniquet can be adjusted by pressing a buckle and pulling one end of the tourniquet; when moving backwards, the plug pins are pulled away from the lock holes in the front clamping plate and the rear clamping plate, the clamping plates are not limited, at the moment, the turning cover can be opened, elasticity of the first elastic telescopic rod drives the connecting shaft and the plug pins to move forwards to reset, the plug pins are inserted into the clamping plates and locked, and the tourniquet storage device is more stable and safer when used for storing tourniquets.

The present invention provides a method and device for dynamic monitoring of microbubbles for blood purification. The method comprises: measuring the amplitude and frequency of an ultrasonic signal after it passes through a pipeline; calculating the flow rate of the liquid in the pipeline using a frequency difference method based on the measured frequency; determining whether bubbles exist in the pipeline based on the measured amplitude, and returning to the first step if no bubbles exist; if bubbles exist, classifying them according to their volume; when the bubble volume exceeds a limit, determining them as large bubbles and proceeding to the next step; when the bubble volume is below a limit, determining them as small bubbles and returning to the first step; and issuing an alarm when the flow rate of the liquid in the pipeline is greater than zero and large bubbles exist in the pipeline. The device comprises an ultrasonic detection module, a liquid flow rate test module, a waveform shaping module, a comparison module, a control module, and an alarm output module; only microbubbles in the flowing liquid are accumulated, thereby accurately measuring the microbubbles, achieving microbubble monitoring and alarming, and reducing false alarms.

The invention discloses a magnetofluid-driven pump-free blood purification system, and belongs to the technical field of medical apparatuses and instruments. The system breaks through a traditional mechanical pump driving mode, magnetic nanoparticles are introduced into blood, the blood is driven to flow by means of magnetic force generated by a gradient magnetic field, and a pump-free blood purification system is constructed. Compared with a traditional blood purification system, the blood purification system has the advantages that damage of high shear force generated by a mechanical pump to blood cells is thoroughly avoided, and the hemolysis risk is effectively eliminated; continuous operation of a mechanical pump is not needed, and energy consumption is remarkably reduced; no mechanical part runs, so that the noise is greatly reduced; meanwhile, huge structures of a mechanical pump and a driving system thereof are eliminated, and miniaturization of equipment is facilitated. The system provides a brand new thought for blood purification treatment, has safety, high efficiency and convenience, is expected to bring a new change to the medical field, and meets the blood purification requirements in different scenes.

1. Name of the product in this design: Blood purification tubing selector. 2. Purpose of this design: For use as a tubing selector in blood purification. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

1. The name of the design product: blood purification equipment. 2. The use of the design product: for patient blood purification treatment. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The utility model discloses a rotary type flexible pipe flow stopping system, a flow stopping valve and blood purification equipment, relates to the technical field of medical instruments, and solves the problem that the existing blood purification equipment needs a complicated and large-size mechanical structure for controlling the circulation of liquid in a flexible pipe or cannot respond to the equipment requirement in time during manual control. The system comprises a clamping assembly and a flow stopping assembly. The clamping assembly is at least provided with a groove, and a pipeline for the flexible pipe to penetrate through is arranged in each groove; one end of the flow stopping assembly is embedded into the clamping assembly and connected with the clamping assembly, and the flow stopping assembly is used for abutting against or loosening the flexible pipe after rotating. Through the synergistic effect of the clamping assembly and the flow stopping assembly, the pipeline is designed in the groove, and one end of the flow stopping assembly is embedded into the clamping assembly, so that the problems of complex structure and overlarge size of the flexible pipe are avoided while the circulation of liquid in the flexible pipe can be automatically controlled, the number of assemblies required for realizing the control of the liquid in the flexible pipe is reduced, and the production cost is reduced. And the whole body is simplified.

The utility model discloses an artery pot device and a blood purification device, and the artery pot device comprises a bottle body, the interior of the bottle body is hollow, a liquid inlet and a liquid outlet which are communicated with the interior of the bottle body are formed in the lower part of the bottle body, and a cylinder is arranged in the bottle body; the sleeve is rotationally arranged on the periphery of the cylinder along the vertical axis, the sleeve is in clearance fit with the cylinder, one end of the sleeve extends towards the bottom of the bottle body, and the other end of the sleeve extends towards the top of the bottle body; the stirring part comprises a plurality of blade sets, the blade sets are distributed in the axial direction of the sleeve, each blade set comprises a plurality of blades distributed in the circumferential direction of the sleeve, and the height of the first blade set corresponds to that of the liquid inlet, so that blood flowing in from the liquid inlet acts on the blades of the first blade set, and the first blade set is driven to rotate. The risk of blood coagulation in the arterial kettle can be reduced, replacement liquid injected for hemodiafiltration treatment can be fully mixed with blood, and the safety of blood purification treatment is improved.

To provide a blood purification device capable of preventing connection of a chamber member from being forgotten when switching the device to a single needle state and performing blood purification treatment.SOLUTION: A blood purification device in which a double needle state and a single needle state can be switched optionally includes: a blood pump 4; a liquid feed amount detection part 11 for detecting a feed amount of liquid by the driving of the blood pump 4; a pressure detection part 6 for detecting pressure in a blood circuit; a chamber member 9 attachable to and detachable from the blood circuit, and connected to an air trap chamber 5 in the single needle state, which causes blood of the blood circuit to flow in and be stored in a blood collection phase for collecting blood from a patient, and causes stored blood to flow out to the blood circuit and be returned in a blood returning phase for returning the blood to the patient; and a connection determination part 12 for determining whether or not the chamber member 9 is connected on the basis of the feed amount of liquid detected by the liquid feed amount detection part 11 and the pressure detected by the pressure detection part 6.SELECTED DRAWING: Figure 2

A blood purification device (10) comprises: a measurement unit (44) that uses a cuff (54) for pressurizing a blood vessel of a patient undergoing blood purification treatment to measure the patient's blood pressure values and the patient's pulse wave amplitude values corresponding to cuff pressures; and a prediction unit (50) that receives, as input, time-series data including the blood pressure values and the pulse wave amplitude values measured in the blood purification treatment, and outputs the patient's blood pressure prediction value.

A blood purification device (1) comprises: a blood purifier (3) capable of purifying blood; a blood circuit (2) including an arterial-side blood circuit (21) which has an arterial-side puncture needle (211) attached on the distal end thereof, and a venous-side blood circuit (22) which has a venous-side puncture needle (221) attached on the distal end thereof; an impedance measurement unit (5) including an oscillator (53) that applies an alternating-current voltage across an arterial-side electrode (51) provided to the arterial-side blood circuit (21) and a venous-side electrode (52) provided to the venous-side blood circuit (22), the impedance measurement unit being capable of measuring frequency characteristics of the impedance between the arterial-side electrode (51) and the venous-side electrode (52); and a puncture determination unit (72) for determining, on the basis of the measured frequency characteristics of the impedance, whether a patient has been punctured normally. The blood purification device also comprises a frequency range determination unit (70) for determining the frequency range of the alternating-current voltage applied by the oscillator (53) in accordance with the liquid in the blood circuit (2).