235 results about "Hemodialysis care" patented technology

The invention provides a system for continuously monitoring a patient during hemodialysis. The system includes a hemodialysis machine for performing the hemodialysis process that features a controller, a pump, a dialyzer filter, a lumen, and an interface to a body-worn monitor. A patient attaches to the dialysis machine through the lumen, and wears a body-worn monitor for continuously measuring blood pressure. The monitor includes an optical system for measuring an optical waveform, an electrical system for measuring an electrical waveform, and a processing component for determining a transit time between the optical and electrical waveforms and then calculating a blood pressure value from the transit time. The body-worn monitor features an interface (e.g. a wired serial interface, or a wireless interface) to transmit the blood pressure value to the controller within the hemodialysis machine. The controller is configured to receive the blood pressure value, analyze it, and in response adjust the dialysis process.

The invention relates to remote controlled blood cleaning of a patient (P). A dialysis unit (110) treats the patient's (P) blood in accordance with a prescribed therapy. The dialysis unit (110) has a bi-directional wireless interface (110W-120W) towards a gateway unit (120), which is further connected (125) to a remote host (140) via at least one interconnecting network (130). Thus, therapy related parameters (Dbp, Dr, dh, Dw) can be transmitted from the dialysis unit (110) to the remote host (140). It is also rendered possible for the remote host (140) to transmit control data (Dctr1) to the dialysis unit (110), the control data (Dctr1) influencing the prescribed therapy being, or to be, executed by the dialysis unit (1 10).

The invention provides a system for continuously monitoring a patient during hemodialysis. The system includes a hemodialysis machine for performing the hemodialysis process that features a controller, a pump, a dialyzer filter, a lumen, and an interface to a body-worn monitor. A patient attaches to the dialysis machine through the lumen, and wears a body-worn monitor for continuously measuring blood pressure. The monitor includes an optical system for measuring an optical waveform, an electrical system for measuring an electrical waveform, and a processing component for determining a transit time between the optical and electrical waveforms and then calculating a blood pressure value from the transit time. The body-worn monitor features an interface (e.g. a wired serial interface, or a wireless interface) to transmit the blood pressure value to the controller within the hemodialysis machine. The controller is configured to receive the blood pressure value, analyze it, and in response adjust the dialysis process.

A pH-buffer measurement system that has at least one source for modifying the pH of a fluid entering the system, the source selected from an acid source and a base source. The acid source adds an acid equivalent to provide an acid reacted fluid and the base source adds a base equivalent to provide a base reacted fluid. The source is in fluid communication with a flow path and a component for determining a fluid characteristic of the acid reacted fluid or the base reacted fluid. The fluid characteristic that is measured is any one of a gas phase pressure, an electrical conductivity, or thermal conductivity.

Disclosed are vascular access devices, implantable dialysis grafts, and systems including them useful for improved access to implanted medical devices. Also disclosed are implantable hemodialysis vascular access graft devices that facilitate easy, accurate and reproducible cannulation or needle entry into the implanted device by magnetically-locating a portion of the graft that includes one or more paramagnetic materials operably defining the physical boundaries of the target cannulation site / entry port.

The invention discloses a preparation method of a cyclodextrin modified magnetic nano adsorbent and the application of the cyclodextrin modified magnetic nano adsorbent in a hemodialysis adsorption system, belonging to the field of biomedical material. The method takes FeCl3.6H2O, FeCl2.4H2O and ammonia water as raw materials, trisodium citrate (TSC) as a dispersing agent, polyethylene imine (PEI) as a modification substrate and beta-cyclodextrin (CD) as an adsorption functional group, and comprises the steps of synthesizing magnetic nanoparticles which are modified by the TSC and are small in particle sizes, good in dispersion and strong in magnetism by a reverse chemical coprecipitation method; enabling a PEI modified layer to be adsorbed onto the surface of Fe3O4-TSC by electrostatic interaction; grafting the beta-CD by a Schiff base reaction to obtain the cyclodextrin modified magnetic nano adsorbent-Fe3O4-beta-CD. The adsorbent has magnetism, so that the separation and purification process is more convenient and rapider, and the separation and purification cost is low; the cyclodextrin modified magnetic nano adsorbent has better adsorption capacity for hydrophobic toxin in the hemodialysis adsorption system.

A method and / or a composition relates to cleaning and reprocessing a hemodialysis filtration membrane assembly that employs polyvinylpyrrolidone-containing membranes. The method includes the step of treating the assembly with an aqueous mixture or a gas-liquid mixture having an inorganic base and from 100 to 1,000 ppm of a hypochlorite salt, wherein the mixture has a pH between about 12.0 and about 12.5, an oxidation reduction potential of less than 0.5 volts, a temperature of 40° to 55° C. and wherein the mole % of hypochlorous acid, HOCl, relative to the sum of hypochlorous acid plus hypochlorite anion, —OCl, is less than 0.004%. The composition may be used in such a method.

The invention discloses an environment-friendly bio-based polymer hemodialyzer casing material. The casing material is a blend which comprises the following raw materials in percentage by mass: 90-99% of environment-friendly bio-based polymer, 0.4-8% of plasticizer, 0.2-6% of lubricant, 0.1-2% of antioxidant, 0.2-3% of heat stabilizer and 0.1-4% of inorganic filler. The raw material environment-friendly bio-based polymer has the advantages of wide sources and the like, and is renewable and degradable. The prepared environment-friendly bio-based polymer hemodialyzer casing has higher biocompatibility, and can obviously lower the side effect of hemodialysis; and the waste hemodialyzer casing can be degraded by proper treatment, thereby greatly reducing the environmental pollution.

The present invention relates to an apparatus and a method to spin hollow fibres of dialysis grade with diameter around 220 microns and thickness of around 35-40 microns, by wet spinning technique. The present invention spinning is carried out by using an apparatus having a nitrogen cylinder (1), water bucket (2), polymer cylinder (6), water cylinder (7), automatic winding machine (5) characterized by a cheap assembly of syringes (dispo van (8) and insulin syringes (9)) wherein no electrical power is required for the spinning, making the fibres extremely easy to manufacture and affordable at the consumer end.

The invention relates to a bioreactor, which is formed by serially connecting a reciprocating-rotation cell culture tank assembly module (104), a gas-dispersion control assembly module (102) and a liquid flow direction control assembly module (103) through a cell culture solution circulation pipeline. A carrier suspension conglutinated with cells is injected into a cell culture tank of a reciprocating bioreactor, and along with the rotation of a step motor and a double-headed peristaltic pump in the liquid flow direction control assembly module, the output of a preceding state hemodialysis unit or a culture solution in a culture solution container enters the circulation pipeline. When the culture solution reaches a dialysis column (301), a corresponding gas is diffused into the culture solution. Then, the culture solution with the corresponding gas is sent into the cell culture tank. After the exchange of substance with cells in the culture tank, the culture solution containing metabolites of cultured cells is sent back into the preceding state hemodialysis unit or the culture solution container through an output port of the cell culture tank and the culture solution circulation pipeline.

The invention provides a system for characterizing a patient undergoing hemodialysis, featuring: 1) a body-worn biometric sensor, worn on a single location of the patient, and featuring: i) sensing elements for measuring electrocardiogram (ECG), thoracic bio-impedance (TBI), photoplethysmogram (PPG), and phonocardiogram (PCG) waveforms; ii) a processor for collectively analyzing the ECG, TBI, PPG, and PCG waveforms to determine a set of physiological parameters; and iii) a first wireless transceiver configured to transmit the set of physiological parameters; 2) a gateway system comprising a second wireless transceiver configured to receive the set of physiological parameters; and 3) a data-analytics system configured to analyze the set of physiological parameters to determine the patient's status.

The invention discloses a preparation method of a hemodialysis concentrated solution. The preparation method comprises the following steps that (1) the hemodialysis concentrated solution is prepared in a solution mixing tank; (2) the solution in the solution mixing tank is subjected to second-level filtration; (3) the solution in the solution mixing tank and ozone generated in an ozone generator are input to a storage tank after being mixed through a gas and liquid mixing pump; (4) the solution in the solution mixing tank is pumped back to the solution mixing tank through a circulation pump; (5) the solutions in the solution mixing tank and the storage tank are mixed in a circulative mode until the ozone concentration of the solution in the storage tank reaches 0.050-0.100 mg / L; (6) the hemodialysis concentrated solution is obtained through filling. The preparation method is simple in operation, quick, efficient, and easy to industrialize. Compared with a conventional method, according to products prepared through the method, initial contaminating bacteria in the concentrated solution are reduced, the storage period is prolonged, product quality is better guaranteed, and using safety of a patient is guaranteed.

Disclosed is a self-wetting porous membrane comprising an aromatic hydrophobic polymer such as polysulfone and a wetting agent comprising a copolymer of formula A-B or A-B-A, wherein A is a hydrophilic segment comprising a polymerized monomer of the formula (I): CH2═C(R1)(R2), wherein R1 and R2 are as described herein, and B is an aromatic hydrophobic polymeric segment, wherein segments B and A are linked through an amidoalkylthio group. Also disclosed is a method of preparing a self-wetting membrane comprising casting a solution containing an aromatic hydrophobic polymer and the wetting agent, followed by subjecting the cast solution to phase inversion. The self-wetting porous membrane finds use in hemodialysis, microfiltration, and ultrafiltration.

The invention discloses a hemodialysis analysis method based on double-machine learning. The method is characterized by comprising the following steps of preprocessing gathered training samples of a hemodialysis center; filling the preprocessed training sample according to a Hot-Deck method, deleting the training samples with variable deletion percentage over alpha, performing variable filling onthe training samples with variable deletion percentage which does not exceed alpha, and obtaining the filled training sample; performing important characteristic screening on the filled training sample through Lasso sparse constraint and Random Forest respectively, and combining two sets of screened training samples for obtaining a final training sample; loading the final training sample into a multivariate linear regression model, performing continuous iteration for obtaining a final prediction model. The method of the invention is combined with a predicating model for a machine learning andhemodialysis first analysis plan in artificial intelligence, thereby reducing the load of a hemodialysis room clinical doctor and improving hemodialysis efficiency of a hemodialysis center.

Methods, systems, and kits are provided for performing hemodialysis, hemodiafiltration, and peritoneal dialysis on a portable machine suitable for both clinical and home use. Peritoneal dialysate can be flowed into and out of the peritoneal cavity, and can also be regenerated within the system, without the need for introducing fresh dialysate. Common hardware and software can be utilized for both peritoneal dialysis and other forms of dialysis such as hemodialysis, hemofiltration, and hemodiafiltration, allowing for facile transition between different dialysis modes using the same dialysis machine.

The invention discloses a disposable hemodialysis nursing kit, which comprises a box body and a box cover. The inside of the box body is divided into an on-machine treatment and nursing area for hemodialysis catheters, an off-machine treatment and nursing area for hemodialysis catheters, and an internal fistula through partitions. In the puncture nursing area, a disposable bed patch bag, three rubber gloves, a piece of non-woven treatment towel, a piece of iodophor gauze, a piece of alcohol gauze and four alcohol cotton balls, two A pair of 5ml syringes, a piece of sterile gauze, a piece of sterile applicator, a piece of adhesive tape, two disposable treatment trays, and an outer packaging bag. The items except the packaging bag are stacked in the outer packaging bag from top to bottom Inside. The invention has simple structure, very fast and convenient use, can ensure the aseptic state in the operation process, and greatly reduces the chance of cross-infection.

The invention belongs to the technical field of medical instruments, and particularly relates to hemodialysis auxiliary nursing apparatus. The hemodialysis auxiliary nursing apparatus comprises a bedbody, wherein a supporting plate is arranged on the bed body, an overturning plate is rotationally connected with the supporting plate, an overturning structure for driving the overturning plate to overturn along the supporting plate is arranged on the bed body, the bed body is further provided with massage apparatus corresponding to the supporting plate, the massage apparatus comprises two columns of first massage structures for performing vibration massage on legs, the first massage structures are fixedly connected with the supporting plate, a massage cavity is fixedly connected with the bedbody, a driving structure is connected in the massage cavity in a slide manner, the driving structure drives the first massage structures to vibrate and massage the legs in the sliding process, two sides of the driving structure are each connected with a pair of second massage structures, the two pairs of second massage structures are arranged on two sides of the two columns of first massage structures, and the second massage structures comprise massage rods which move up and down while rotating in the sliding process of the driving structure to massage the legs. The hemodialysis auxiliary nursing apparatus effectively solves the problem that existing hemodialysis auxiliary nursing apparatus is relatively poor in use effects.

The invention relates to a hemodialysis solution manufacturing system and a manufacturing technology, in particular to an ultra-pure hemodialysis concentrated solution manufacturing system and a manufacturing technology. The amount of endotoxin is smaller than or equal to 0.03 eu / ml, and the number of formed bacterial colonies is smaller than or equal to 0.1 cfu / ml. The ultra-pure hemodialysis concentrated solution manufacturing system comprises a dynamic mixing and dissolving tank (1), an activated-charcoal adsorber (2), a modified resin adsorber (3), a precise filter (4) and a liquid storage tank (5). The dynamic mixing and dissolving tank has a heating function. The system has the advantages that the activated charcoal adsorption and modified resin adsorption technology is adopted additionally, the technology is adopted for adsorbing endotoxin and the bacterial colonies in products, and after adsorption, endotoxin and the bacterial colonies are eliminated.

The invention relates to the technical field of hemodialysis supports, and discloses an upper limb fixing support frame for hemodialysis nursing. The support frame comprises a bed body; a first air bag is fixedly arranged between telescopic rods; a rotating plate is rotatably installed above the first air bag; pull ropes are fixedly connected to the upper portion of the rotating plate; the outer ends of the pull ropes are fixedly connected with the telescopic rods; a driving rod is movably installed on the left side of the corresponding telescopic rod; a manual rod is rotatably installed at the upper end of the left side of the driving rod; and a second air bag is fixedly installed in a movable frame. According to the upper limb fixing support frame for hemodialysis nursing, the manual rodis pulled by the hand to enable the driving rod to be separated from a limiting groove in the corresponding telescopic rod, then certain pressure is exerted downwards to enable the telescopic rods tomove downwards to squeeze the first air bag, meanwhile the pull ropes pull the rotating plate to be opened, air in the first air bag enters the second air bag, and the movable frame loses supportingforce of the first air bag and moves downwards, so that the effect of freely adjusting the height of the support frame is achieved.

The present invention pertains to a method for monitoring a treatment of a patient, preferably for monitoring hemodialysis, hemodiafiltration and / or peritoneal dialysis, the method comprising the steps of irradiating a sample of a dialysis liquid used in the treatment with irradiation light of at least a first irradiation wavelength, detecting light emitted by the irradiated sample in at least a first detection wavelength, the detection wavelength being different from the first irradiation wavelength, and determining the presence and / or concentration of at least one analyte in the sample on the basis of the detected light.

A portable hemodialysis system is provided including a dialyzer, a closed loop blood flow path which transports blood from a patient, to the dialyzer, and back to the patient, and a closed loop dialysate flow path which transports dialysate through the dialyzer. The hemodialysis system includes a hemodialysis machine and dialysate generator which are physically connectable to, and disconnectable from, one another. To connect the hemodialysis machine and dialysate generator together, both the hemodialysis machine and dialysate generator possess connectable and disconnectable electrical connectors and fluid connectors which are positioned and constructed to allow both a fluid and electrical connection between the two machines. The hemodialysis machine includes a processor and a user interface, preferably in the form of a touchscreen, that is capable of controlling both the functions of the hemodialysis machine and the dialysate generator.

The invention relates to a preparation method of anticoagulant property acrylic ester copolymer membrane, and to the technology field of biology medical material preparation. The invention can prepare the acrylic ester copolymer in one-step by free radical polymerization, and then obtain the acrylic ester copolymer membrane by the evaporation of solution. The molecular weight, glass-transition temperature and mechanical strength of the acrylic ester copolymer membrane prepared in the method of the invention are controlled. The invention has anticoagulant property, and can be used in medical apparatus like hemodialysis. The invention provide a simple and high performance method for preparing anticoagulant property copolymer membrane.

The invention discloses a clinical hemodialysis conversion device used in a nephrology department, and relates to the technical field of medical instruments. The device includes a hemodialysis machineand a box body, the upper surface of the box body is provided with an opening, two lateral slide grooves are arranged in the parts, close to the top inner wall of the box body, the box body is slidingly connected with two baffles through the two lateral slide grooves, and a linkage mechanism is fixedly installed at the lower surface of each baffle; and a lifting mechanism is fixedly installed atthe inner wall of the box body. According to the device, through the cooperation among the above structures, the hemodialysis machine is convenient to store and use, and the phenomenon of shaking of the hemodialysis machine in the movement process is avoided; at the same time, the elastic force of compression springs can effectively has the effect of buffering, so that the problems that in a traditional device, a hemodialysis machine is inconvenient to store, and when collision occurs during the movement, internal components of the hemodialysis machine are easily damaged due to vibration are solved.

The invention relates to the technical field of medical instruments, in particular to a bedside fixing device for nursing in a hemodialysis room. The bedside fixing device comprises a bottom plate, avertical plate is fixedly connected to the upper surface of the bottom plate, a vertical limiting sliding groove is formed in the front side face of the vertical plate, a protruding plate is connectedto the top end of the vertical plate, a driving motor is arranged on the upper surface of the protruding plate, an output shaft of the driving motor penetrates through an end of the protruding plateand is connected with a vertical lead screw through a coupler, a bearing pedestal is arranged on the portion, below the vertical limiting sliding groove, of the front side face of the vertical plate,the lower end of the vertical lead screw is connected with the bearing pedestal, and a horizontal long-strip plate is arranged above the bottom plate. A dialysis tube can be rapidly clamped in the hemodialysis process, the clamping effect is excellent, moreover, rapid clamping and taking-down can be achieved, the complex step that an existing hemodialysis pipeline fixing clamp needs to be fixed byscrewing in or out a bolt is avoided, and the bedside fixing device is simple and rapid to operate.

The invention discloses a dialyzer batch production control method, a dialyzer, a dialysis system and a dialyzer management method for batch production. The dialyzer batch production control method comprises the steps that hemodialysis parameters are obtained, and production batch parameters of the dialyzer are set according to the hemodialysis parameters; the dialyzers are produced according to the production batch parameters, after production of the dialyzers of one batch is completed, medical identification data of the dialyzers of the batch are generated, and the medical identification data of the dialyzers of the same batch are the same; and sterilizing and packaging are carried out on the dialyzers, a unique identification number is set for each dialyzer, and the identification numbers are set on shells and / or packages of the dialyzers. The invention further provides the dialyzer and the dialysis system which are produced by the method, and further provides the management method of the dialyzer. The treatment effect of the dialyzer can be improved, and a dialyzer manufacturer can conveniently improve the production process of the dialyzer.

The invention relates to a polyether sulfone / sulfonated polyether sulfone hollow fiber blend membrane for hematodialysis. The blend membrane is prepared by spinning spinning solution containing sulfone / sulfonated polyether sulfone resin solid matter, spinning solvent, hydrophilia macromolecule and pore-foaming agent by dry-wet spinning technique. The flux of the blend membrane is greatly improved,and its hydrophilia and blood compatiability are also improved; besides, the polyether sulfone / sulfonated polyether sulfone hollow fiber blend membrane can be applied to be field of hematodialysis.

The invention discloses blood sample collection equipment for the hemodialysis department, and belongs to the field of hemodialysis. The blood sample collection equipment for the hemodialysis department comprises a box body, a flow stopping sleeve is arranged on the side wall of the box body, an elastic air bag is arranged in the flow stopping sleeve, an air pumping and exhausting mechanism is arranged in the box body, a first air exhausting pipe is connected between the output end of the air pumping and exhausting mechanism and the elastic air bag, and a box door is rotationally connected to the box body; a placing frame is fixedly connected in the box body; according to the blood sample collection equipment, blood vessel expansion and blood sampling are facilitated through arrangement of the flow stopping sleeve, the elastic air bag and the air pumping and exhausting mechanism, a blood sample test tube is convenient to store through arrangement of the placing frame and a fixing tube, the test tube is convenient to carry out damping protection through arrangement of a bottom support and a second spring, and the test tube is convenient to clamp and fix through arrangement of a sliding groove, a clamping rod, a third spring and a clamping plate; a sealing cap, an exhaust hood and a second gas guide pipe are arranged, so that the test tube can be further clamped and fixed by a clamping plate.

The invention relates to a disposable element for a medical treatment device, especially a hemodialysis device. The inventive disposable element comprises a film bag filled with the dialysis liquid that consists of two superimposed flat films or a tubular film with connections for supplying and discharging the liquid. The film bag or the tubular film, in the condition ready for usage, is closed with a first weld on the top end and with a second weld on the lower end and is folded several times parallel to the longitudinal axis that is vertical in the condition ready for usage. The film bag is inserted in a receiving unit that is configured as a shaping dish that has a middle cylindrical section followed by an upper or lower convex section. The inventive disposable element, when combined with the receiving unit, unfolds more easily when being filled and has a lesser tendency to form creases.