49 results about "Blood purification" patented technology

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.

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.

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.

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).

This application provides a control method, apparatus, and storage medium for a blood purification device. The control method includes: determining the flow rate deviation of a target pump in the blood purification device during operation relative to a reference flow rate, wherein the reference flow rate is determined based on the flow rate information of the target pump during steady-state operation; and controlling the blood purification device to output a first alarm message for the target pump in response to a flow rate deviation being greater than or equal to a preset first flow rate deviation threshold. The technical solution provided in this application improves the safety of blood purification devices.

This blood purification apparatus comprises: a first electrode that is in contact with an arterial blood line connected to a blood purifier; a second electrode that is in contact with a venous blood line connected to the blood purifier; and a measurement unit that measures the impedance between the first electrode and the second electrode. At least one of the first electrode and the second electrode is provided with an electrode unit (60). The electrode unit (60) includes a reception part (62) in which a tube (58) provided in the arterial blood line or the venous blood line is disposed. The reception part (62) is provided with: a contact surface (64) that is in contact with the outer surface of the tube (58); and an electrode part (66) provided along the contact surface (64).

The ability to quantitatively identify odors related to a patient's medical condition from a patient's blood. [Solution] An information processing device for identifying the odor of a patient's blood, comprising: an acquisition unit that receives a detection signal from an odor sensor that detects a predetermined odor contained in the blood and acquires odor data related to the predetermined odor from the detection signal; and an identification unit that identifies the odor related to the patient's condition or the status of blood purification treatment based on the odor data.

A blood purification apparatus (1A) comprises: a dialysate supply unit that prepares a dialysate from at least first and second stock solutions; a first container unit (110) and a first holder unit; and a second container unit (120) and a second holder unit. The first container unit (110) contains a first raw material powder which is a raw material powder of the first stock solution, and the first raw material powder contains at least two of a calcium salt, a magnesium salt, a potassium salt, and a sodium salt as main components. The second container unit (120) contains a second raw material powder which is a raw material powder of the second stock solution, and the second raw material powder contains sodium hydrogen carbonate as a main component. The first holder unit constitutes a first flow path through which a dissolution solution is introduced into the first container unit (110) and through which the first stock solution, which contains the first raw material powder dissolved in the dissolution solution, is delivered to the dialysate supply unit. The second holder unit constitutes a second flow path through which a dissolution solution is introduced into the second container unit (120) and through which the second stock solution, which contains the second raw material powder dissolved in the dissolution solution, is delivered to the dialysate supply unit.

A blood purification device is provided that can accurately determine tube occlusion regardless of usage conditions or environment. The blood purification device 1 includes a blood purifier 10, an arterial side tubing 21, and a blood pump 212 disposed on the arterial side tubing 21 for delivering fluid. The blood purification device 1 includes: a load detection unit 66 disposed upstream of the blood pump 212 for detecting the load received by the tube constituting the arterial side tubing 21; a reference value generation unit 511 for generating a measured reference value based on the detection value detected by the load detection unit 66 when the blood pump 212 is stopped at a predetermined time; a reference value updating unit 512 for updating the reference value based on the change in the detection value over time and the measured reference value; and an occlusion determination unit 513 for determining tube occlusion when the detection value deviates from a predetermined determination range.

According to the present invention, an information processing device that processes biological information about a patient who is undergoing a blood purification treatment has a computation unit that acquires the biological information on the basis of a detection signal from a biological sensor, an output unit that outputs the biological information and selection information for allowing a provider of the blood purification treatment to select whether the biological information is valid data that is to be treated as correct, an input unit into which acceptability information that indicates the details of the selection is inputted, a determination unit that determines whether the biological information is valid data on the basis of the acceptability information, and a storage unit that stores the biological data as valid data when the determination unit has determined that the biological data is valid data. (Selected drawing: figure 3)

The present application belongs to the technical field of biomedical engineering industry, especially a blood purification device and method, aiming at the problem that most of the existing blood purification devices adopt single-layer filter structure, which is difficult to simultaneously and efficiently intercept large-particle blood clots and small impurities, resulting in insufficient purification precision or affecting purification efficiency due to filter membrane blockage, the present application proposes the following scheme, which comprises a device main body, a shell cover is rotatably installed on the front surface of the device main body through a hinge, an observation window is fixedly embedded on the shell cover for real-time observation of the blood purification process inside the device, and a control module is fixedly arranged on the outer wall of the device main body through bolts. The present application realizes a three-stage purification mode of "coarse filtration, fine filtration and centrifugal strengthening", improves the rotation stability of the centrifugal mechanism, accurately controls the purification environment temperature, real-time feedbacks the blood purification index, ensures the safe and convenient operation, and meets the high-precision and high-safety requirements of clinical blood purification.

This invention relates to the field of hemostasis devices, specifically to a compression hemostasis device for blood purification. It includes an arc-shaped fixing base, a compression component, a restraint mechanism, an adjustment mechanism, and a timed linkage mechanism. The arc-shaped fixing base has a compression window corresponding to the puncture wound in its center. The compression component includes a compression head, an elastic pressure element, and a pressure transmitting plate. The restraint mechanism includes a main restraint band and an auxiliary restraint band, both with Velcro straps at their ends away from the arc-shaped fixing base. The adjustment mechanism is perpendicular to and coaxial with the compression window, with its lower end penetrating the arc-shaped fixing base and connected to the pressure transmitting plate. The timed linkage mechanism is signal-connected to a controller, which automatically drives the adjustment mechanism to adjust the compression force according to a preset release time. This invention achieves safe hemostasis of the puncture wound, improving the safety and convenience of blood purification treatment.

This invention provides a pre-flushing method, equipment, and storage medium for a blood purification device. The pre-flushing method includes: closing the connection between the hemoperfusion unit and the dialyzer, opening the connection between the hemoperfusion unit and the waste liquid tank, and inputting pre-flushing fluid into the hemoperfusion unit for pre-flushing; determining a first pre-flushing flow rate of the pre-flushing fluid; if the first pre-flushing flow rate is higher than a first threshold, activating a vacuum pump to extract gas from the waste liquid tank until the pre-flushing of the hemoperfusion unit is confirmed to be complete; opening the connection between the hemoperfusion unit and the dialyzer, closing the connection between the hemoperfusion unit and the waste liquid tank, and inputting pre-flushing fluid into the hemoperfusion unit to pre-flushing the dialyzer until the pre-flushing of the dialyzer is confirmed to be complete. This invention solves the problems of poor pre-flushing effect and low efficiency in existing blood purification devices.

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.

The invention relates to a pre-charging and exhausting system for blood purification and a pre-charging and exhausting method, and belongs to the technical field of blood purification. The pre-charging and exhausting system for blood purification comprises a first clamp, a blood pump, a blood purifier and a second clamp which are sequentially arranged in the blood flowing direction and connected through a circulating pipeline, and further comprises an infusion apparatus, a pulse clamp, a vacuum pump and a high-frequency vibrator, and the infusion apparatus is used for conveying pre-charging liquid and is connected with the circulating pipeline between the first clamp and the blood pump through an infusion tube; the pulse clamp is arranged on the infusion tube and is configured to be periodically opened and closed so as to produce pressure pulses in the circulating pipeline; the vacuum pump is communicated with an inner cavity of the blood purifier; and the high-frequency vibrator is connected with the blood purifier. The invention aims to improve the discharge effect and discharge efficiency of gas in the blood purifier in the pre-inflation and exhaust link before the formal start of blood purification treatment, shorten the preparation time of the blood purification treatment, improve the anticoagulation effect of the blood purification treatment, and reduce the adverse effect caused by blood coagulation of the blood purifier.

To provide a blood purification device that can reduce the installation space required for the device in a space where multiple patients are treated. [Solution] The blood purification device 1A comprises a housing 10, a first blood purifier 21, a second blood purifier 22, a first blood pump 31, and a second blood pump 32. The housing 10 has a first side wall 11 and a second side wall 12. The first blood purifier 21 is incorporated into a first blood circuit through which the blood of a first patient flows. The second blood purifier 22 is incorporated into a second blood circuit through which the blood of a second patient flows. The first blood pump 31 is connected to the first blood circuit. The second blood pump 32 is connected to the second blood circuit. The first blood purifier 21 and the first blood pump 31 are provided on the first side wall 11. The second blood purifier 22 and the second blood pump 32 are provided on the second side wall 12.

This invention discloses a blood leakage monitoring device for continuous blood purification equipment, relating to the technical field of blood leakage monitoring devices. The device includes: a monitoring tube with a waste liquid inlet at the top and a discharge pipe at the bottom; a monitoring component for monitoring waste liquid conditions, comprising a monitoring ring, a mounting ring, a control panel, and multiple monitoring modules; a flow-limiting component for limiting the width of the waste liquid flow channel to improve the monitoring accuracy of the monitoring modules; and an active control component for controlling the active expansion of the flow-limiting component to further reduce the width of the waste liquid flow channel. This invention improves the monitoring accuracy of the monitoring module by using a flow-limiting component to limit the width of the waste liquid flow channel, and by triggering the active control component when a suspected blood leakage is detected. This allows the flow-limiting component to actively expand to further reduce the width of the waste liquid flow channel, thereby improving the detection effect of the monitoring module.

The application discloses a hemodialysis 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 a method. In a blood purification treatment stage, the heater is controlled to heat dialysis fluid in a dialysis fluid input pipeline. When the heating temperature of the heater is in a stable state, a first detection temperature obtained by the first temperature sensor for measuring the temperature of the dialysis fluid in a dialysis fluid bag and a second detection temperature obtained by the second temperature sensor for measuring the temperature of the heated dialysis fluid in the dialysis fluid input pipeline are acquired. The heating power of the heater is adjusted according to the temperature difference between the second detection temperature and the first detection temperature. In this way, the application can improve the feedback control accuracy of the heating power of the heating device and ensure the safety and comfort of the blood purification treatment of the patient.

1. Name of the product in this design: Blood Purification Tubing Packaging Tray (II). 2. Purpose of this design: For packaging blood purification tubing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the product in this design: Blood purification tubing packaging tray (I). 2. Purpose of this design: For packaging blood purification tubing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the product in this design: Blood purification device (portable automatic dispensing). 2. Purpose of this design: for 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: a 3D model.

The application belongs to the technical field of biomedical engineering industry, and particularly relates to a double-filter type blood purification dialysis device. In the prior art, the overall purification effect is limited. In addition, the arterial and venous blood vessel interfaces are mostly exposed, which is easy to contact with environmental bacteria. This not only increases the work burden of medical staff, but also easily causes bacterial residues due to operation negligence, thereby causing interface pollution. The present application provides the following scheme, which comprises a base, universal wheels are arranged at the bottom of the base, and a rack is fixedly installed on the top of the base. The double-stage purification structure of coarse filtration and fine filtration is adopted to simultaneously remove middle and small molecule toxins. The blood vessel interface is arranged in the mounting groove in the dialysis machine body, and the automatic closing structure of the protective cover is matched. The blood passage is not directly exposed to the external environment, the risk of interface contacting bacteria is eliminated from the structure, manual cleaning and sealing are not needed, and the use safety is further ensured.

This invention relates to the field of medical blood purification equipment technology, and discloses a lipid adsorption material regeneration device, including a main body, a rotary switching module, an adsorption column module, a dynamic pressure balancing system, a fluid pipeline system, and a main controller. The rotary switching module drives the adsorption column module to switch between three stations: treatment, regeneration, and balancing preparation. The adsorption column module is filled with pH-responsive hydrogel material to achieve adsorption and regeneration functions. The dynamic pressure balancing system forms a magnetic circuit through a magnetic piston and electromagnetic drive components in a bypass pipe, which senses and adjusts the pressure inside the column in real time. The fluid pipeline system controls the connection of input and output connectors via an electric push rod to achieve fluid switching. The main controller integrates data from multiple sensors, including pressure, pH, and optical sensors, to intelligently terminate the regeneration process. This invention achieves in-situ online regeneration of the adsorption material, continuous uninterrupted treatment, and precise closed-loop control, improving treatment efficiency and safety, and significantly reducing consumable costs.

A blood purification apparatus is provided which is configured to use a B medicament solution used in a blood purification treatment process also as an alkaline medicament in a de-greasing process, thereby achieving reliable and smooth performance of the de-greasing process. The blood purification apparatus includes a line section, a double pump (1), and a control unit (13). The line section includes a dialysate introduction line (L1) and a drain discharge line (L2). The control unit (13) is configured to execute a blood purification treatment process and a de-greasing process. The blood purification treatment process is executed when a blood purification treatment in which dialysate is delivered to a dialyzer (C) is executed. The dialysate is prepared by diluting an A medicament solution and a B medicament solution to predetermined concentrations. The de-greasing process is executed when a de-greasing in which grease in the line section is removed by causing a sodium carbonate solution obtained from the B medicament solution introduced to the line section to flow through the line section is executed. The control unit (13) uses a heating unit (4) and a de-aerator (5) when a bicarbonate solution generation process in which a predetermined amount of a bicarbonate solution is generated while discharging carbon dioxide is executed, and when the de-greasing process in which the sodium carbonate solution is used is executed after the bicarbonate solution generation process.

To improve the accuracy of impedance measurements in blood circuits. [Solution] The blood purification device includes a first electrode that contacts a blood withdrawal side blood circuit connected to the blood purifier, a second electrode that contacts a blood return side blood circuit connected to the blood purifier, and a measuring unit that measures the impedance between the first electrode and the second electrode. At least one of the first electrode and the second electrode includes an electrode unit 60. The electrode unit 60 includes a receiving section 62 on which a tube 58 provided in the blood withdrawal side blood circuit or the blood return side blood circuit is arranged. The receiving section 62 includes a contact surface 64 that contacts the outer surface of the tube 58, a deformable section 68 that makes the contact surface 64 deformable, and an electrode section 66 provided along the contact surface 64.

This blood purification device (1) comprises: a blood circuit (2) that extracorporeally circulates the blood of a patient; a blood purifier (3) that is provided in the blood circuit (2) and is capable of purifying the blood; an impedance measurement unit (5) that is capable of measuring the frequency characteristics of the impedance of a liquid in the blood circuit (2); a normal-time frequency characteristics storage unit (83) that stores normal-time impedance frequency characteristics corresponding to the liquid flowing through the blood circuit (2); and a liquid determination unit (72) that compares the impedance frequency characteristics measured by the impedance measurement unit (5) with the normal-time impedance frequency characteristics stored in the normal-time frequency characteristics storage unit (83), and determines whether or not the impedance characteristics match.

When performing drainage in an AV connection type blood circuit, it is determined that the blood circuit is in an AV connection state. A blood purification device includes a blood circuit having a blood withdrawal side circuit and a blood return side circuit, one end of the blood withdrawal side circuit and one end of the blood return side circuit being connected to each other by a blood purifier, and the other end of the blood withdrawal side circuit and the other end of the blood return side circuit being connected to each other, whereby a closed circuit can be formed; a blood pump provided in the blood circuit; a flow path switching section capable of being switched between an open state in which a fluid can flow through one end of the blood withdrawal side circuit and one end of the blood return side circuit, and a closed state in which the fluid cannot flow; a pressure detection section for detecting an internal pressure of the blood circuit; and a control section that, when the blood circuit is in a state in which the closed circuit is formed, performs a drainage process of draining residual liquid in the blood circuit to a predetermined discharge location. The control section performs the following control: in the closed state, after a pressure difference is generated between the blood withdrawal side circuit and the blood return side circuit by rotation of the blood pump, the open state is switched to, and the pressure difference is monitored based on a detection result of the pressure detection section to determine whether the blood circuit is the closed circuit.