45 results about "Hemodialysis" patented technology

This utility model discloses a dry powder cartridge for hemodialysis, comprising: a cartridge body and a cover body; a guide tube is provided at the axis of the cartridge body, and a sieving ring is provided at the bottom end of the guide tube; a filter hole is provided on the sieving ring; a liquid guide tube communicating with the guide tube is also provided on the sieving ring; the liquid guide tubes are multiple sets and arranged in a ring on the sieving ring. In this utility model, after filling the cartridge body with dialysis dry powder, the connecting pipe on the cover body is inserted into the connector, and the heat-sealing ring is heated to achieve a sealed connection between the cartridge body and the cover body. Liquid is injected into the guide tube through the inlet pipe, and the aqueous solution inside the guide tube is discharged from the bottom of the cartridge body through the liquid guide tube. All sets of liquid guide tubes are arc-shaped, and each set of liquid guide tubes has a drain hole on one side facing its center, allowing water to dissolve in the bottom of the cartridge body in a ring flow, fully mixing the aqueous solution with the dialysis powder at the bottom to form a dialysis concentrate, which finally flows through the filter hole into the drain tube and is discharged.

The utility model relates to the field of hemodialysis especially relates to hemodialysis pipeline anti -coagulation oscillator structure, including bottom plate, the lower end of bottom plate is integrated with the built -in self -locking mechanism's universal wheel, the upper end fixed connection of bottom plate has vertical vibration unit, installs the support plate in vertical vibration unit, the lower end of support plate is configured vibration motor as drive source to carry out vertical direction's vibration action, the upper end of support plate sets up horizontal reciprocating motion module, and is provided with the receiving plate in horizontal reciprocating motion module, still fixed with the vertical board on the support plate, the surface of vertical board is provided with linkage's sliding mechanism, and sliding mechanism and horizontal reciprocating motion module synergistic effect are used for realizing the guiding displacement of receiving plate, the utility model discloses through vertical vibration and horizontal reciprocating motion combination, more effectively simulate human blood circulation, reduce blood coagulation risk, at the same time, the lower end of bottom plate is integrated with self -locking universal wheel, makes oscillator mobile flexible and fixed stable, and it is convenient to use in different scenes.

1. The name of the design product: puncture needle pulling device. 2. The use of the design product: internal fistula puncture needle pulling device for hemodialysis patients. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The hemodialysis tubing fixation wristband is a tool for stabilizing tubes and connections on patients' hands during hemodialysis in healthcare centers. Currently, considering the way the tubes are connected during the dialysis process, problems such as displacement of the connection location due to changes in the patient's position, insufficient adhesion of the anti-allergic adhesive (CM), the occurrence of sensitivity or wounds on the skin, fatigue of the muscles of the fingers and hands, and patients' concern and anxiety about the connection coming out can be mentioned. In this regard, this wristband has been designed to reduce the possibility of any displacement by fixing these connections with a door clip designed on the wristband and is presented as a solution to the aforementioned challenges.

This invention relates to the field of medical device technology and discloses a hemostasis device and method for a hemodialysis room. The hemostasis device includes a strap and a connecting assembly. The connecting assembly includes a retainer and a retaining plate disposed at both ends of the strap. The retainer and retaining plate are detachably engaged to fix the strap to the patient's limb. An adhesive sheet is connected to the inner side of the strap near the retainer. The inner side of the strap of this invention is provided with a hemostatic airbag group, an inflation / deflation control mechanism, and at least two sets of pressure-reducing airbags. The hemostatic airbag group presses hemostatic cotton against the puncture point on the surface of the patient's limb to achieve hemostasis. The pressure-reducing airbags are distributed around the puncture point in the circumferential direction of the patient's limb. When one set of pressure-reducing airbags is inflated, the inflation / deflation control mechanism deflates another set of pressure-reducing airbags, thereby switching the position of the pressure-reducing airbags on the surface of the patient's limb and preventing one set of pressure-reducing airbags from pressing the same position on the surface of the patient's limb for a long time.

The present application relates to the technical field of medical water treatment, in particular to a customized hemodialysis water supply pipe network system based on digital twinning and 3D printing, which comprises a sensor data acquisition module, a digital twinning hydraulic simulation module, a structure collaborative optimization module, a pipe manufacturing instruction generation module and a 3D printing pipe forming module. In the present application, by constructing a hydraulic and water flow mapping relationship synchronized with the actual running state, the pipe geometry parameters and flow distribution are dynamically deduced based on the bed terminal water characteristics, so that the branches maintain a coordinated water supply state under different load conditions, and the optimized structure parameters are directly converted into executable manufacturing paths, realizing the directional forming of pipe size and internal structure, avoiding the accumulation of artificial processing errors, supporting differentiated branch configuration, reducing the influence of later adjustment on the overall pipe network, and improving water supply consistency, structure adaptability and operation controllability.

The application discloses a two-compartment modeling and prediction method for sodium kinetics in hemodialysis. The method divides the patient's body fluid into two compartments of extracellular fluid and intracellular fluid, and establishes a coupled differential equation set to describe the sodium transfer kinetics in the dialysis process. The application corrects the physical error of the existing model in the dispersion equilibrium concentration formula, proposes C_eq=[Na]d / σ (σ=0.97 is the Gibbs-Donnan factor) to replace the traditional Donnan formula and the old recommended formula, eliminates the false dispersion gradient under the condition of isonatric dialysis based on the physical fact that electrolytes are only distributed in the plasma water phase, and removes the error solvent drag term by clearly defining the biophysical constraints of the cell membrane aquaporin not transporting sodium. The application adopts a perturbation reference model to replace the traditional Fick diffusion law to describe the cell membrane sodium exchange, and more accurately reflects the intracellular and extracellular sodium kinetics. The model can accurately predict the serum sodium change and sodium removal under different dialysis prescriptions, and can generate a sodium removal contour map for clinical prescription optimization.

This invention provides an automatic disinfection and sealing device for central venous catheter connectors during hemodialysis, comprising a sealing box and an iodine cap, a catheter connector support mechanism, and an iodine cap screwing mechanism disposed within the sealing box. The iodine cap has an internal thread on the inner wall of diameter section I that mates with the external thread on the catheter connector, and a sterile cotton sleeve is disposed on the inner wall of diameter section II. Medical personnel only need to place the catheter connector in the sealing box, and the connector will be automatically disinfected and sealed. The entire process requires no manual disinfection, no manual tightening of the iodine cap, no manual wrapping of the catheter connector, and no manual bonding, reducing the workload of medical personnel, avoiding contamination caused by manual operation, and minimizing the time the catheter connector is exposed to the outside environment, thus significantly reducing the chance of contamination.

A drain connector for a hemodialysis machine, relating to the field of hemodialysis machine technology, includes a support base. A power switch is installed on the side of the support base, and a filter tube is fixed to the top of the support base. The filter tube is transparent, and a filter screen is installed inside the filter tube. One end of the filter screen is connected to a conduit, and the other end is connected to an installation pipe. A cleaning unit for cleaning the inside of the filter screen is installed on the installation pipe, and a sewage discharge unit is connected to the installation pipe. A drain pipe is connected to the filter tube. This drain connector for a hemodialysis machine is easy to clean, avoiding the hassle of disassembling pipes for cleaning, saving time and effort. It can provide a direct warning of abnormal waste fluid, making it highly practical.

The utility model provides a kind of nursing frame for hemodialysis room nursing, including outer frame body, fixed frame being arranged on outer frame body layer by layer from top to bottom, drive portion being connected on fixed frame, connecting rod assembly being pivoted in the power output end of drive portion, and accommodating box being arranged on connecting rod assembly. Connecting rod assembly includes insertion into the limiting portion of sliding slot, and fixed assembly being connected between connecting rod assembly and outer frame body. Sliding slot is equipped on outer frame body, and sliding slot includes mutually connected horizontal section and inclined section. Drive portion drives connecting rod assembly to move along sliding slot, so that accommodating box is inclined downward when being pulled out, and the opening of accommodating box is located outside outer frame body, and fixed assembly is used to limit the displacement of accommodating box. The utility model makes the opening of accommodating box completely exposed, and it is convenient for medical staff to take required dialysis articles, and when taking articles is completed, the accommodating box of upper layer can be pushed into outer frame body.

The present application relates to hemodialysis wound bleeding alarm technical field, specifically, it relates to a kind of hemodialysis wound bleeding alarm device based on biosensor, it includes installation box and the fixing band being arranged below installation box, sensor alarm device is arranged on installation box, disinfection component, pressing component, air cooling component and ice compress component are arranged in installation box;Through structure integration and function synergy, bleeding monitoring, dynamic disinfection, accurate ice compress and intelligent alarm are organically combined, effectively make up the deficiencies, such as the rough management of existing technology to long-term bedridden hemodialysis patient puncture point, infection and hematoma prevention and control lag, significantly improve the safety of hemodialysis passage nursing.

The present application provides a kind of hemodialysis internal fistula nursing hemostasis device, comprising: adjusting box, adjusting box is fixedly installed with bandage;Lifting assembly, lifting assembly includes sleeve, screw and threaded sleeve, sleeve is rotatably arranged in adjusting box, screw is threadedly arranged in the small hole diameter inside of sleeve, threaded sleeve is threadedly arranged in the large hole diameter inside of sleeve, rotating sleeve can adjust screw and threaded sleeve move up and down, and the moving distance of screw is less than the moving distance of threaded sleeve;Pressing assembly, pressing assembly includes pressing block and pressing ring, pressing block and pressing ring are respectively fixedly installed in the lower end of screw and threaded sleeve, and pressing block is located in the inside of pressing ring.It can solve the technical problems that the pressure applied by the existing internal fistula hemostasis device is usually uniformly distributed in the covered area of pressing plate, which easily leads to the long-term unnecessary excessive compression of the normal blood vessel wall around the puncture point, significantly hinders the internal fistula blood flow, and increases the risk of thrombosis and internal fistula acute occlusion.

The invention relates to a compression cuff for an arteriovenous fistula, the compression cuff comprising a rigid support element (5) traversed by an opening (12), a flexible band (2) connected to one end (10) of the support element and a closure device (3) for closing or opening the cuff, the support element and the band defining an enclosure having a rounded shape when the cuff is in the closed position, the cuff also comprising a rod (13) that is mounted slidably in translation in the opening of the rigid support element, without being able to rotate relative to the element, the rod having two opposite ends, an upper end located outside the enclosure and a lower end located inside the enclosure, the cuff also comprising a compression pad connected to the lower end of the rod and means for locking the translational movement of the rod.

The invention relates to a compression cuff for an arteriovenous fistula comprising a rigid support element (5) through which an orifice (12) passes, a flexible band (2) connected to one end (10) of the support element, and a closure device (3) for opening or closing the cuff. The support element and the band define a rounded enclosure when the cuff is in the closed position. The cuff also includes a stem (13) mounted to slide in translation within the orifice of the rigid support element, without being able to rotate relative to said element. The stem has two opposite ends, an upper end located outside the enclosure and a lower end located inside the enclosure. The cuff further includes a compression pad connected to the lower end of the stem and means for locking the translational movement of the stem. Figure for the abstract: Fig. 2

This invention provides a disposable dialysis insertion needle, comprising a cannula, a needle cap, a needle handle, a soft extension tube, and a Y-shaped connector connected to one end of the extension tube. The Y-shaped connector includes a positive pressure connector end and a dialysis tube connection end. The dialysis tube connection end is a short tube with a first internal thread on its inner wall, which matches the external thread at the end of the dialysis tube. The extension tube is equipped with a clamping assembly, which includes a U-shaped seat, through holes on opposite sides of the U-shaped seat, a fixing block fixed in the middle of the bottom wall of the U-shaped seat, a movable thin plate rotatably connected to the upper end of the first side wall of the U-shaped seat, and a pressure block fixing the movable thin plate near the fixing block. Compared with hemostatic forceps clamping, this invention offers better clamping effect, simpler operation, and can be operated by medical staff with one hand, improving work efficiency. It can be threadedly connected to the end of the dialysis tube, making operation more convenient and the connection tighter, effectively preventing air from entering and improving safety during hemodialysis.

This invention discloses a portable hemodialysis accessory with a blood leakage sensor, relating to the field of hemodialysis monitoring technology. The invention includes a housing, with a venous vessel fixation seat and an arterial vessel fixation seat connected to its two sides respectively. Each of the venous and arterial vessel fixation seats has a vessel slot on one side. A monitoring system connected to the leakage sensor is disposed within the housing, and a control panel and an audible and visual alarm are disposed on the outside of the housing and connected to the monitoring system. This invention, through the monitoring system within the housing, can receive the detection signal transmitted by the leakage sensor in real time. When blood leaks into the vessel slot and comes into contact with the leakage sensor, the monitoring system quickly analyzes and processes the signal, immediately triggering an alarm light on the control panel and activating the audible and visual alarm. This dual audio and visual alert allows medical personnel to detect the abnormality immediately.

The utility model discloses a needle tube integral type blood specimen collector for hemodialysis belongs to medical instrument technical field, including vacuum blood collecting tube, set up the opening at the tail part of vacuum blood collecting tube, set up the rubber plug for sealing the opening at the opening, the head of vacuum blood collecting tube sets up the sleeve, and the sleeve is used for with the outside circulation pipeline blood sampling port plug -in connection, sets up the blood taking needle assembly in the inside of sleeve, and blood taking needle assembly includes needle body, fixed base and rubber cover, and needle body passes through fixed base and is fixedly connected with fixed base, and fixed base is fixedly connected with the head of vacuum blood collecting tube, and the needle head of needle body is located in the inside of sleeve, and the needle tail of needle body passes through the head of vacuum blood collecting tube and is located in the inside of vacuum blood collecting tube, and rubber cover is used for wrapping the needle head in the inside of sleeve and makes the needle head be in sealed state, the utility model discloses the blood taking needle and vacuum blood collecting tube integration fusion as integral type structure, and simple, convenient to use has avoided the security risk caused because of blood taking needle to stab into too deep or stab into improper.

The utility model provides a kind of hemodialysis treatment equipment nursing mounting device, the utility model relates to medical instrument technical field, including supporting ring, supporting ring is semicircular frame, and supporting ring is lined with supporting pad, supporting pad is the pad of filling type lining cloth, and supporting pad cross section is spherical, and muscle belt bin is inlaid in the one end of supporting pad to supporting ring, and the outer end of muscle belt bin is fixed with plug by inner filling elastic muscle belt, and supporting ring is set with the matching insertion slot in relative to the one end of plug;Supporting ring side is fixed with mounting seat, and locking bin is set on mounting seat;The beneficial effects of the utility model are that: by the supporting ring structure of integrated type to facilitate the muscle belt set in structure, cooperate supporting pad to fix the catheter access site of patient's limbs, in combination with the pressure buckle switch structure set on limiting shaft handle to monitor catheter fixed state in real time, effectively improve the safety of catheter access when hemodialysis treatment, reduce subsequent nursing workload, improve the practicability of the device.

The utility model discloses a kind of improved closed vacuum blood sampling devices for hemodialysis, it is related to medical instrument technical field, including joint mechanism, the inside of joint mechanism is provided with connecting mechanism.The utility model passes through joint mechanism and connecting mechanism, both cooperation, can simplify the complicated blood sampling step process, directly save blood sampling time, reduce the occurrence of needle stick injury, improve the work efficiency of nurse, when needing to use, only need to insert the end of disposable blood sampling needle tube into slot, then rotate anti -skid layer, make rotating block with anti -skid layer fixed connection drive rotating pipe rotate in the hole of connecting hole, and then make the protruding thread of the end of disposable blood sampling needle tube and internal thread groove thread connection, form closed vacuum environment, simultaneously connect pipe head inserts into vacuum blood sampling test tube simultaneously form closed vacuum environment, then the vacuum negative pressure of blood sampling test tube, automatic negative pressure suction blood sampling, can effectively avoid needle stick injury in blood sampling.

In one aspect a medical fluid connector functions as both a recirculation connector to connect arterial and venous lines during priming of an extracorporeal blood circuit as well as a clamp to occlude a fluid tube. In one aspect, the connector includes a tubular body with luer connections and a clamping arm that extends longitudinally along a tubular body to apply clamping force.

The utility model belongs to the technical field of nursing bag for hemodialysis, concretely is a nursing bag for deep venous catheterization for hemodialysis, including the casing, the top of casing is installed the top cover, the lower end inner wall of top cover is fixedly connected with the support plate, the inside movable joint of support plate has the two -way screw rod, both ends all are fixedly connected with the knob of two -way screw rod, the outer wall both ends of two -way screw rod all are screwed the moving plate, the bottom of moving plate is equipped with the rotating groove, the inner wall movable joint of rotating groove has the connecting rod, the bottom inside of casing is provided with the pressing plate, the top of pressing plate is fixedly connected with the U type board, the bottom of multiple connecting rods is movable joint with the inner wall of multiple U type boards respectively, the top of pressing plate is fixedly connected with the pressing plate spring, the top of multiple pressing plate springs all with the bottom end inner wall top of top cover fixed connection. The utility model under the action of moving plate and connecting rod, can prevent the deep venous catheterization in casing from separating from the placement groove in the transportation or moving process, plays the protection effect to the deep venous catheterization in the inside.

A method is used to operate a device for extracorporeal blood treatment. The device can perform haemodialysis and hemodiafiltration. During hemodiafiltration, blood is delivered through a blood side of a dialyzer by an electric blood pump. Substituate is delivered by an electric substituate pump. A delivery volumetric flow of the electric substituate pump is adjusted in such a way that a current consumption of the electric blood pump remains within predefinable limit values.

1. Name of the product in this design: Arteriovenous fistula puncture device (for hemodialysis). 2. Purpose of this design: For use as a puncture device for arteriovenous fistulas. 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.

The application discloses an enhanced anti-coagulation and anti-bacterial hemodialysis hollow fiber membrane and a preparation method thereof, and belongs to the technical field of medical membrane materials. The acid activation-polydopamine coating-sulfonated grafting modification of halloysite nanotubes is carried out in the application, so that the surface sulfonic acid group density of the halloysite nanotubes reaches 0.8-2.1 mmol / g, and the Zeta potential is less than or equal to-30 mV. The modified halloysite is dispersed in a polar aprotic solvent in advance, is incorporated into a polymer matrix after ultrasonic treatment, is filtered through a sintering filter element with a diameter of less than or equal to 5 mu m, is defoamed, is spun by using a dry spraying-wet spinning method, and is prepared into a finished product through coagulation, rinsing and drying. The application constructs a heparin-like negative charge layer, so that the activated partial thromboplastin time (APTT) is greater than or equal to 55 s, platelet adhesion and protein adsorption are significantly inhibited, and the application has a broad-spectrum antibacterial performance. The rigid halloysite induces the formation of through channels, so that the pain point that a high-flux membrane is easy to damage red blood cells is solved, the process is stable, and the application is suitable for industrial production.

The application discloses a kind of based on multi-modal information's hemodialysis wisdom auxiliary diagnosis and treatment method and system, it is related to the field of diagnosis and treatment system, the method includes the following steps: step 1, collect prescription data and sign data, store into hemodialysis knowledge base, and the prescription data and sign data are carried out ETL preprocessing, respectively generate dialysis log and sign log;Step 2, prescription data is trained by means of LDA theme model, obtains the parameter and drug distribution of efficacy theme, the efficacy theme distribution of each dialysis;Step 3, using K-means++ algorithm is carried out cluster analysis to the efficacy theme distribution of each dialysis, the efficacy theme distribution of each dialysis is changed into an efficacy combination label sequence;Step 4, the parameter and weight of convolutional neural network are determined;Step 5, output patient dialysis prescription recommendation.The system includes knowledge acquisition module, reasoning module, explanation module and man-machine interaction module, also contain based on multi-modal information's hemodialysis wisdom auxiliary diagnosis and treatment method.

This invention discloses a grip strength ball for rehabilitation of hemodialysis patients, belonging to the field of medical device technology. It aims to solve the technical problem that existing grip strength balls, which only allow for a single gripping motion, easily increase fatigue in the patient's palm and make it difficult to exercise the fingers. The invention includes an upper hemisphere and a lower hemisphere, connected by a fist-rebounding component. A finger pressing component is arranged on the top of the upper hemisphere, and a telescopic adjustment component is arranged inside the lower hemisphere. The upper and lower hemispheres are adjusted and controlled by the telescopic adjustment component, allowing for both a close proximity state and a separated state. This invention has the advantages of allowing patients to exercise with a hollow fist, sensing the force of the fist grip by applying pressure to the grip strength ball to assess the degree of rehabilitation, and simultaneously facilitating finger flexibility exercises, thus meeting the needs of two types of rehabilitation exercises.

A method of and system for removing a target substance from blood of a patient comprising: providing a complexing agent for selectively binding a target molecule or target entity in the blood in a complex; administering the complexing agent into the blood for binding with the target molecule or the target entity; conveying the blood having the complexing agent through a treatment zone of an extracorporeal blood flow pathway to bind or incorporate the target molecule or target entity within the blood in a complex; and removing the complex from the blood by haemodialysis. The system includes an extracorporeal blood flow pathway for connection to a patient, a treatment zone arranged in the extracorporeal blood flow pathway, and a haemodialysis unit for separating the complex from the blood via one or more of filtration, ultra-filtration, convection, and membrane adsorption, with or without magnetic assistance.

This invention discloses an adaptive operation optimization method and system for hemodialysis equipment based on multimodal sensing and clearance efficiency prediction, belonging to the field of equipment control technology. This invention uses multispectral optics and a micro-mass spectrometry module to non-invasively monitor the molar enrichment of uremic solutes in dialysis waste fluid in real time, and constructs a multimodal feature vector by combining blood flow, pressure, and adsorption attenuation coefficients; it establishes a baseline for equipment and consumable performance based on a solute transport-membrane mass transfer coupled kinetic model, achieving real-time assessment and trend prediction of clearance efficiency; it adaptively adjusts flow rate, time window, and filtration mode according to operating status, automatically compensates for consumable performance degradation, stabilizes clearance efficiency, and predicts consumable lifespan to support preventative maintenance. This invention optimizes only equipment operation, has strong adaptive capabilities, and is stable and reliable in operation, applicable to various combined blood purification treatment devices.

This utility model belongs to the field of sampling technology, and in particular to a sampler for hemodialysis. It includes a sampling cylinder with ear plates on both sides of the top, a cylindrical sampling chamber inside, and a connector at the bottom communicating with the sampling chamber. A piston head is located inside the sampling chamber, with a push rod connected to the upper part of the piston head and a push plate at the top of the push rod. A sampling needle is connected to the end of the connector, and a needle sleeve is provided at the sampling needle. The needle sleeve has a receiving cavity inside that can accommodate the sampling needle. The needle sleeve is cut in half. This invention only requires aligning the opening of the needle sleeve with the lower part of the sampling cylinder from one side, and then covering the lower end of the sampling cylinder with the needle sleeve to complete the fitting of the lower end of the sampling cylinder and the sampling needle. It eliminates the need to align the opening of the needle sleeve directly with the needle tip, reducing the risk of the needle tip hitting the operator's hand. Furthermore, because the needle sleeve is split in half, the interior can be easily disinfected, allowing for reuse and reducing costs.

The application discloses a time sequence physiological signal early warning method and system for low blood pressure risk in hemodialysis process, and the method comprises the following steps: constructing a real-time state evolution sequence of a target object in a dialysis process, calculating K sequence similarities of the real-time state evolution sequence, selecting the maximum similarity, extracting a personalized evolution window length based on the maximum similarity, backtracking a state evolution subsequence with a length equal to the personalized evolution window length, inputting the state evolution subsequence into a time sequence classification model, outputting a risk probability of a low blood pressure event, and if the risk probability is greater than a set early warning risk threshold, a low blood pressure risk early warning signal is sent out; the application identifies a cluster level critical moment when a group state evolution trajectory starts to significantly diverge from high consistency based on a condensation degree sequence, and finally determines a time interval between the cluster level critical moment and the latest sampling moment as a personalized evolution window length corresponding to the cluster, so that each cluster has a window scale matched with its own common evolution period.