226 results about "Kidney machines" 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.

In a blood dialysis system including a source of substitution fluid (10) and a blood dialysis machine, a hemodiafiltration system having a first dialyzer (1) including a first blood compartment (4) having a first blood inlet which receives blood to be cleaned and a first blood outlet which discharges partially diafiltered blood and a first dialysate compartment (5) having a first dialysate inlet and a first dialysate outlet, means (8) for mixing the partially diafiltered blood with substitution fluid from the source to obtain a blood/substitution fluid mixture, and a second hemofilter (2) including a second blood compartment (11) having a second blood inlet which receives the blood/substitution fluid mixture and a second blood outlet which discharges filtered blood and a second permeate compartment (12) having a second permeate outlet.

A method for inlet temperature monitoring for centralized heat disinfection of dialysis machine inlet lines is described. The method can be used, for example, for a dialysis system which has a central water processing system used at a multiple patient dialysis treatment clinic or center. A central water processing system and a plurality of dialysis machines having fluid inlets are fluidly connected to a water supply loop which circulates heated water from the central water processing system to the dialysis machines and back to the central water processing system. A dialysis system for centralized heat disinfection of dialysis machine inlet lines of dialysis machines supplied with water by a central water processing system also is provided.

Apparatus and method for non-invasively determining the level of a constituent of a patient's blood drawn though an elastomeric tubing to a dialysis machine deforms the tubing in the slot of a measuring head having two points of different transverse length with a transmit/receive sensor at each point that transmits a signal through the tubing and the blood and is reflected back to it from the tubing internal wall. The round trip transit time of the signal at each sensor is measured and the blood sound velocity is calculated from the two round trip transit times and the differential of the transverse lengths at the two points. Blood hematocrit level, which is related to blood volume, is calculated from the calculated sound velocity and an empirical relationship.

A method and device for masking noise from a dialysis machine, as an example of a medical device, includes tubing or a fluid container, or both, being connectable to a patient for flowing fluid to or from the patient, and one or more sensors configured to detect one or more patient parameters. The dialysis machine further includes a controller configured to determine a sleep state of the patient based on the one or more patient parameters detected by the plurality of sensors, and adjust a masking sound in response to the sleep state of the patient. The masking sound is activatable in response to noise generated during operation of the dialysis machine.

A liquid-balanced liquid supply apparatus for blood dialysis and blood filter is composed of the balancing scales, the displacing liquid container and waste liquid container on said balancing scales, a synchronous dual-pipe pump as the liquid conveying unit communicated to said both container respectively via tubes, and the conveying regulator connected to said liquid conveying unit.

The invention discloses a disinfectant for cleaning and disinfecting a hemodialysis machine. The disinfectant contains the following components by weight percent: 0.5%-1.0% of peracetic acid, 2.0%-5.0% of hydrogen peroxide, 0.1%-0.5% of pyridine-2-formic acid, 0.01%-0.05% of sodium citrate, 0.2%-2.0% of sodium dichloroisocyanurate, 0.05%-1.0% of sulfamic acid and the balance being water. A preparation technology of the disinfectant is simple, the disinfectant is convenient to use, the technological conditions are easy to achieve and the product stability is good.

A dialysis machine has at least one filter for the filtration of dialysis liquid and a device for determining calcification of the dialysis machine. The device has one or more sensors configured and arranged to detect either downstream, or upstream and downstream, of the at least one filter an ion concentration or a parameter representative of the ion concentration or of its change of the dialysis liquid, of a solution serving the decalcification or of another measuring solution. The device for determining the calcification of the dialysis machine has an evaluation or calcification unit configured to determine the calcification of the dialysis machine based on the ion concentration or parameter value detected by the sensor or sensors.

Blood treatment/dialysis systems are disclosed. The systems include a water treatment unit, preferably of the reverse osmosis type, whose outlet has connected thereto a water supply line provided with a number of branch connections having fluidly coupled thereto blood treatment/dialysis machines in a selective manner, and a drain line through which exhausted blood treatment fluid can be discharged from fluidly coupled blood treatment/dialysis machines. Also disclosed is a machine-external heat exchanger, which is connected to the water supply line upstream of the branch connections on one side and to the drain line on the other side.

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.

A toilet modified for disposal of dialysis waste includes a base, a bowl, a water supply port, and a dialysis drain port. In the dialysis drain port is an air gap device that establishes a gap between ends of first and second drain tubes of a dialysis machine and a fluid level in the air gap. RO water and effluent from the dialysis machine enter the chamber of the air gap and mix, before being passed along a path from the dialysis drain port to the bowl of the toilet, where it can be dispelled in a sanitary manner in compliant with all pertinent codes and regulations.

The invention discloses a separate-type extracorporeal circulation system which comprises an upper computer system, a lower computer system and an extracorporeal circulation device. The upper computer system can exist independently, the lower computer system and the extracorporeal circulation device can be integrated into a whole and can also exist mutually independently, the upper computer system is in wired or wireless data connection with the lower computer system, and the lower computer system is in wired or wireless data connection with the extracorporeal circulation device. Compared with a traditional extracorporeal circulation system, especially a hemodialysis machine, the separate-type extracorporeal circulation system enables the upper computer system to be independent, therefore, on one hand, the size of the extracorporeal circulation system is obviously reduced, the extracorporeal circulation system is made to be easy to carry, a patient can perform repeated short-time dialysis or night dialysis treatment at home, the medical care cost is reduced, and meanwhile the toxin tolerance of the dialysis patient during dialysis is reduced; on the other hand, the upper computer system can perform programming, networking and remote controlling conveniently, and therefore networking and intellectualization of the separate-type extracorporeal circulation system are achieved.

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 an adapter (3) for connecting a container connector to a connection socket of a dialysis machine. The container connector is provided with two fluid lines connecting the inside and the outside of the container, whereby the ends that open to the outside are concentric. The coupling socket of the dialysis machine is provided with two fluid lines, whereby the ends that open to the outside are not concentric and are spaced apart. According to the invention, the adapter (3) includes first (301) and second (302) concentric adapter ribs. The first rib forms a circular chamber open to the outside and the base of which is provided with a first opening, while the second rib surrounds the first and forms an annular chamber open to the outside and the base of which is provided with a second opening. In addition, the adapter is provided with a first linking channel (306) into which the first opening from the first circular chamber opens and a second linking channel (307) insulated from the first channel and into which the second opening from the second annular chamber opens. Each channel (306, 307) includes an end piece (308, 309) formed by a circular tube, said end pieces (308, 309) being sized and arranged so that they can be inserted into the receiving members of the connection socket of the dialysis machine.

The invention discloses a novel self-cleaning system of a hemodialysis machine. A liquid drainage port of the hemodialysis machine is connected with a conductivity detector. The self-cleaning system comprises an RO water cleaning line, a sterilizing solution is infecting line and a controller. The RO water cleaning line comprises multiple branch RO water pipelines, each of which is connected with a liquid inlet of the hemodialysis machine through a first flow adjusting valve. The sterilizing solution disinfecting line comprises multiple branch sterilizing solution pipelines, each of which is connected with an input unit and a first electronic flowmeter. Each branch sterilizing solution pipeline is connected with the liquid inlet of the hemodialysis machine. A pressure alarm is connected between a delivery unit and the second flow adjusting valve. A diluent pipe is connected with a second electronic flowmeter used for metering diluents entering a sterilizing solution storage tank. The controller is used for controlling the RO water cleaning line and the sterilizing solution disinfecting line to switch for work. The novel self-cleaning system of the hemodialysis machine helps achieve large-scale, standard and intelligent cleaning operation.

A fluidic cartridge for use with a dialysis system, a method of manufacturing the fluidic cartridge, a dialysis machine and a method of operating the dialysis machine with the fluidic cartridge. The fluidic cartridge has a data storage unit, the data storage unit stores data relating to one or more physical properties of the cartridge. A cartridge for use in a portable dialysis machine and a portable dialysis machine. The cartridge has a data storage unit, the data storage unit stores data relating to sterilisation of the cartridge.