Hemodialysis Patents (Class 210/646)
  • Patent number: 12005174
    Abstract: A method including automatically performing at least one integrity test on a dialysis machine after powering on the dialysis machine, wherein the at least one integrity test is selected from the group consisting of a battery test, a dialysate conductivity test, and a dialysate temperature test. The method also includes presenting, on a display of the dialysis machine, a first set of instructions for priming the dialysis machine after completing the at least one integrity test.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: June 11, 2024
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Martin Joseph Crnkovich, David Yuds, Fei Wang, Haiyong Wang
  • Patent number: 11975130
    Abstract: A system and a method for renal replacement therapy includes a blood treatment unit connected to a blood circuit and a dialysis fluid circuit, the system further including a control unit configured to control the system according to control instructions during a treatment, so as to determine a system parameter value and an indication of membrane fouling of the membrane, and activate an automatic anti-fouling measure that includes a temporary change of the flow rate in the blood circuit and a temporary decrease of the ultrafiltration rate wherein a timing of the temporary change and a timing of the temporary reduction are synchronized.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: May 7, 2024
    Assignee: GAMBRO LUNDIA AB
    Inventors: Roger Nilsson, Björn Ericson, Jan Sternby, Thomas Hertz, Olof Jansson, Sture Hobro, Anders Wallenborg, Jonas Fors, Henrik Lindgren, Annmargret Håkansson
  • Patent number: 11918724
    Abstract: This disclosure relates to a method for temporarily interrupting an extracorporeal treatment of blood of a patient by use of a blood treatment apparatus. The method comprises activating or controlling a control device provided and configured to bring the blood treatment apparatus into a state in which the blood treatment of the patient can be interrupted with the intention to continue the blood treatment. This disclosure further relates to a control device, a blood treatment apparatus, a digital storage means, a computer program product as well as a computer program.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 5, 2024
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Uwe Hermann, Sabine Kipp, Christine Nachbaur-Sturm, Thomas Pusinelli, Martin Gruendken, Georg Verch
  • Patent number: 11896751
    Abstract: An adjusting device for a pressure detector that is capable of arbitrarily adjusting the initial position of a membrane member is provided. An adjusting device for a pressure detector includes a control unit that sequentially executes a first step in which a predetermined adjusting pressure is generated in a first zone by activating a pump with the first zone being closed by the closing of an electromagnetic valve, and a second step in which a gas-phase portion, the first zone, and a second zone are combined into a closed space by disabling the closing of the electromagnetic valve; and an adjusting-pressure-acquiring unit that acquires the adjusting pressure to be generated in the first step, the adjusting pressure being acquired in accordance with a relationship between a pressure and a capacity of the first zone in the first step and a pressure and a capacity of the combination of the gas-phase portion, the first zone, and the second zone in the second step.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: February 13, 2024
    Assignee: Nikkiso Company Limited
    Inventors: Hideto Maki, Shinya Hasegawa, Yuki Eda
  • Patent number: 11590271
    Abstract: A dialysis system may include a blood circuit, a cassette, a subsystem having a processor, a sensor, and a blood pumping mechanism, a housing in which the subsystem is arranged, a movable support arranged in the housing and configured to hold the sensor and/or the blood pumping mechanism of the subsystem, a cassette holder configured to removably receive the cassette, and a loading system. The loading system may be configured to move the movable support, e.g. by an axial movement, to a first position and to a second position relatively to the housing while the cassette holder is fixedly arranged in the housing. The loading system may have an electric motor controlled by the processor, a drive assembly coupled to the electric motor, and a guiding assembly configured to cooperate with the drive assembly.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: February 28, 2023
    Assignee: NextKidney SA
    Inventors: Didier Vecten, Ricardo Allendes, Paul Vescovo
  • Patent number: 11590268
    Abstract: A blood component collection cassette that can trap a substance where blood components coagulate by using a simple and economical configuration, and a manufacturing method of the blood component collection cassette are provided. A blood component collection cassette (28) includes a cassette main body (40) where a flow path (42) is formed and is configured to be mountable to a centrifugal separation device (14). The cassette main body (40) has a first sheet (40a) and a second sheet (40b) which are formed of a soft material. The flow path (42) is formed between the first sheet (40a) and the second sheet (40b). A filter member (60) for trapping a substance where blood components coagulate is arranged on the flow path (42) in the cassette main body (40).
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: February 28, 2023
    Assignee: TERUMO KABUSHIKI KAISHA
    Inventor: Masatsugu Igarashi
  • Patent number: 11458416
    Abstract: Methods and devices for powdered sorbent regeneration of biologic fluids are disclosed. The present invention includes three novel methods, which may be used singly or in any combination, for constraining or immobilizing powders so that they can be perfused with a biological fluid or dialysate: a porous carbon block filter, a filtration bed of very fine powder, and a cone-shaped reactor.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: October 4, 2022
    Inventors: Stephen Ash, Tom Sullivan, David Carr
  • Patent number: 11419969
    Abstract: A blood filtration system may to couple to an infusion pump that is external to the blood filtration system. The blood filtration system may include a blood circuit, for instance a variable-volume blood circuit. An infusion port may be in communication with the blood circuit and may receive an infusion fluid pumped by the infusion pump. A filtration pump may extract a filtrate fluid from a filter. The filtrate fluid may include filtered plasma constituents. A fluid characteristic sensor may measure one or more of pressure or flow rate of the infusion fluid pumped by the infusion pump. A controller may monitor the fluid characteristic sensor to determine a change in the pressure or flow rate of the infusion fluid. The controller may modulate a speed of the variable-speed filtration pump based on the change in the pressure or flow rate of the infusion fluid.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: August 23, 2022
    Assignee: Nuwellis, Inc.
    Inventors: David Lerner, David Haskvitz, Franz Willems Ulrich
  • Patent number: 11420037
    Abstract: A method of operating an extracorporeal blood treatment system to infuse blood into a patient at an end of an extracorporeal blood treatment includes clamping an access line of an arterial line set. The method further includes, after clamping the access line, initiating an operation to generate negative pressure in the arterial line set. The method further includes, after generating the negative pressure in the arterial line set, unclamping the access line to draw fluid in the access line further into the arterial line set in a direction away from an end of the access line that is connectable to an arterial access of the patient. The method further includes initiating an operation of a fluid pump engaged with the arterial line set such that the fluid in the arterial line set is infused into the patient through a venous line set.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: August 23, 2022
    Assignees: Fresenius Medical Care Holdings, Inc., Fresenius Medical Care Deutschland GmbH
    Inventors: Martin Joseph Crnkovich, David Yuds, Christian Schlaeper
  • Patent number: 11376353
    Abstract: The present invention relates to a method for regulating supply of substituate in an extracorporeal blood treatment with an extracorporeal blood treatment apparatus comprising a dialyzer divided by a semipermeable membrane into a blood chamber and a dialyzing fluid chamber and a device for supplying substituate. Moreover, the present invention relates to an extracorporeal blood treatment apparatus having a device for regulating supply of substituate. Regulation of supply of substituate in the extracorporeal blood treatment takes place as a function of the rheological loading of the dialyzer. To regulate supply of substituate during extracorporeal blood treatment, rheological loading of the dialyzer is determined from transmembrane pressure on the dialyzer and flow resistance of the dialyzer and substituate rate is increased or reduced according to the loading.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: July 5, 2022
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Pascal Kopperschmidt, Alfred Gagel
  • Patent number: 11351293
    Abstract: A blood purification device used with a blood circuit includes an arterial-side line and a venous-side line attached to a blood purifier to which, at the ends thereof, the arterial-side line and the venous-side line are connected, the blood purification device including: a supply line connected to a supply unit which supplies a priming fluid, and which is capable of being connected to a leading end of the venous-side line; a discharge line connected to a discharge unit which discharges the priming fluid after use, and which is capable of being connected to a leading end of the arterial-side line; and a blood pump which is disposed upon the arterial-side line. By driving the blood pump in a state of the supply line being connected to the venous-side line and the discharge line being connected to the arterial-side line, the blood circuit and the blood purifier are primed.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: June 7, 2022
    Assignee: NIKKISO CO., LTD.
    Inventors: Hiroshi Nimura, Yoshimichi Masuda, Masato Fujiwara
  • Patent number: 11305042
    Abstract: The invention relates to an apparatus and to a method for supplying dialysate. The invention also relates to a dialysis apparatus comprising an apparatus for supplying dialysate. The apparatus for supplying dialysate has a balancing device 8, which comprises at least one balancing chamber 9, 10 for balancing fresh and used dialysate, and a metering device 28 for filling the at least one balancing chamber with permeate and concentrates in a specified mixing ratio for producing dialysate. The metering device 28 is designed such that specified volumes of concentrates are conveyed into the at least one balancing chamber 9, 10 in successive working cycles. Given that the specified volumes of concentrates are not added simultaneously, the concentrates can be conveyed using just one single metering pump. This is advantageous in that the metering pump is a relatively expensive component of the mixer circuit. In practice, the design is simpler and compact and the maintenance costs are reduced.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: April 19, 2022
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventor: Benedict Glaser
  • Patent number: 11285248
    Abstract: A renal failure blood therapy system includes a renal failure blood therapy machine, concentration levels for each of a plurality of solutes removed from a patient's blood at each of the multiple times, a display device configured to display for selection at least one removed blood solute from the plurality of removed blood solutes, and a device programmed to (i) estimate at least one renal failure blood therapy patient parameter using the determined concentration levels for the at least one selected removed blood solute, (ii) determine a plurality of acceptable renal failure blood therapy treatments that meet a predetermined removed blood solute clearance for the at least one selected removed blood solute using the at least one renal failure blood therapy patient parameter, and (iii) enable selection of at least one of the plurality of acceptable renal failure blood therapy treatments for operation at the renal failure blood therapy machine.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: March 29, 2022
    Assignees: Baxter International Inc.
    Inventors: Alp Akonur, John Kenneth Leypoldt, Ying-Cheng Lo, Baris Ugur Agar
  • Patent number: 11259553
    Abstract: The present invention provides compositions and methods for the dietary management of nephrolithiasis and hypocitraturia through the oral administration of multiple alkali salts including sodium bicarbonate, potassium citrate and/or magnesium citrate. Also provided are kits including compositions for the dietary management of nephrolithiasis and hypocitraturia.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: March 1, 2022
    Assignee: LithoLyte Corporation, LLC
    Inventor: Ryan Holland
  • Patent number: 11160503
    Abstract: A system for monitoring a vascular access is provided. The system includes a wearable vascular access monitor which can be a sleeve or other protective covering fitted with two or more sensors for obtaining physiological measurements at different locations from the vascular access. The sleeve or other protective covering is also fitted with an ultra-low power processor for relaying the physiological measurements to a patient's mobile phone. The patient's phone can evaluate the physiological measurements to determine a state of the vascular access, and if the physiological measurements fall out of nominal ranges, the patient's phone can alert a clinic, nurse, or physician. The system can be used to monitor fistulas or grafts used for hemodialysis or peritoneal dialysis.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: November 2, 2021
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Sameera Anirudh Peesapati, Joseph Edwin Inase Manakkil
  • Patent number: 11154645
    Abstract: The present disclosure relates to methods for dosing a substituate produced by a blood treatment apparatus. Dosing for the present disclosure is via a hydraulic system of the blood treatment apparatus, the hydraulic system having at least one dialysis liquid supply line which leads into a dialyzer and at least one substituate line. Regulating or controlling the size of the share which passes through the second filtration stage is performed by affecting at least one conveying apparatus and/or at least one flow limitation device and/or a flow divider valve, which are each located or which each operate in the dialysis liquid supply line and/or the substituate line and/or in the branch line which connects the dialysis liquid Supply line with the substituate line. The present disclosure further relates to a control device, a blood treatment apparatus, and a medical functional apparatus.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 26, 2021
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Soeren Gronau, Juergen Haecker, Ralf Mueller
  • Patent number: 11135344
    Abstract: A dialysis system for determining an amount of total chlorine in a partially purified water sample is disclosed. The system includes a water machine that produces at least partially purified water including an at least partially purified water sample and a dialysis machine that provides a dialysis treatment to a patient. The dialysis machine receives the at least partially purified water from the water machine to prepare dialysis fluid for the dialysis treatment. The system also includes a total chlorine detector configured to receive the at least partially purified water sample, at a first time apply a source voltage to the at least partially purified water sample, and at a second time stop applying the source voltage to the at least partially purified water sample and instead monitor a sensed electrical parameter to determine an amount of total chlorine in the at least partially purified water sample.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: October 5, 2021
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Jeff White, Ye Chen, Yuanpang Samuel Ding, Joel Titus, Justin Rohde, Shincy Maliekkal, Kevin Cooper
  • Patent number: 11087869
    Abstract: An operation checking unit for a dialysis apparatus (such as a hemodialysis or peritoneal dialysis machine) is disclosed which comprises an identification unit which is configured to detect a user identity of a user. The operation checking unit also comprises a sensor unit which is configured to detect an operating action of the identified user as an ACTUAL-operation data set, and a processing unit which is configured to compare the detected ACTUAL-operation data set with a DESIRED-operation data set stored in a memory in order to generate a user-specific message in the event of a discrepancy.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: August 10, 2021
    Assignee: Fresenius Medical Care Deutschland GMBH
    Inventors: Alexander Schrörs, Vanessa Nadig
  • Patent number: 11077238
    Abstract: Compositions of peritoneal dialysis solutions and metabolizing enzymes, and their uses to treat disorders associated with elevated levels of metabolites are disclosed. Animal models of hyperoxalemia are also disclosed.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: August 3, 2021
    Assignee: Allena Pharmaceuticals, Inc.
    Inventors: Alexey Margolin, Danica Grujic, Stefan Pierzynowski
  • Patent number: 11071811
    Abstract: The specification discloses a portable dialysis machine having a detachable controller unit and base unit. The controller unit includes a door having an interior face, a housing with a panel, where the housing and panel define a recessed region configured to receive the interior face of the door, and a manifold receiver fixedly attached to the panel. The base unit has a planar surface for receiving a container of fluid, a scale integrated with the planar surface, a heater in thermal communication with the planar surface, and a sodium sensor in electromagnetic communication with the planar surface. Embodiments of the disclosed portable dialysis system have improved structural and functional features, including improved modularity, ease of use, and safety features.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: July 27, 2021
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Barry Neil Fulkerson, James Roswell Braig, David J Mishelevich, Charles Clemens, Clark Berg Foster, Martin Hering, Jan Brian Zwierstra, Russell Thomas Joseph, Victor Gura, Thomas Robinson, Milan Trcka, Daniele Ghidoli, Frank Isackson, Mark Forrest Smith
  • Patent number: 11027052
    Abstract: Methods of priming a plasma processing system are disclosed. The plasma processing system has a number of different fluid flow circuits that are defined by sources of fluid, fluid flow paths, waste containers, a mixer, a separator, valves and a pump. A first fluid circuit is flushed, where the first fluid circuit is defined by a source of a first fluid, a first valve positioned between the source of the first fluid and the first fluid flow path, a second valve positioned between the first fluid flow path and the second fluid flow path, a first pump positioned between the second fluid flow path and the third fluid flow path, and a first waste container in fluid communication with the third fluid flow path. A second fluid circuit is then flushed by closing and opening certain valves.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: June 8, 2021
    Assignee: HDL Therapuetics, Inc.
    Inventors: Hollis Bryan Brewer, Michael M. Matin, Timothy Jon Perlman
  • Patent number: 10994065
    Abstract: The invention relates to an apparatus for carrying out an extracorporeal blood treatment in which a substitution fluid is administered to the patient, wherein the apparatus comprises an extracorporeal blood circuit and a substitution line opening into the extracorporeal blood circuit, wherein the substitution line has a pump for conveying substitution fluid into the extracorporeal circuit, wherein at least two, and preferably more than two, containers for the provision of a substitution fluid are connected separately and at the intake side of the pump to the substitution line, and wherein at least one pressure valve is arranged between the pump and at least one of the containers, said pressure valve allowing a flow of substitution fluid to the pump on an exceeding of an opening pressure.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: May 4, 2021
    Assignee: FRESNIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Lars Breuel, Juergen Klewinghaus
  • Patent number: 10993961
    Abstract: The present invention concerns a dialysis acid precursor composition for use during preparation of a dialysis acid concentrate solution and for mixing with water and a bicarbonate containing concentrate into a ready-for-use dialysis solution. Said dialysis acid precursor composition consist of powder components comprising sodium chloride, at least one dry acid and at least one magnesium salt, and optionally potassium salt, calcium salt, and glucose. According to the invention said at least one magnesium salt and said optional glucose, are present as anhydrous components in said dialysis acid precursor composition.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: May 4, 2021
    Assignee: Gambro Lundia AB
    Inventors: Ola Carlsson, Torbjorn Linden, Lennart Jonsson, Anders Wieslander
  • Patent number: 10973968
    Abstract: A home medical device system includes a home therapy machine for performing a home therapy on a patient; a user interface operably connected to the home therapy machine, the user interface receiving operator inputs; a water treatment device in fluid communication with the home therapy machine; and a data connection between the home therapy machine and the water treatment device, wherein the home therapy machine transmits data via the connection to the water treatment device for control of the water treatment device, the data provided based on at least one of the operator inputs received via the user interface.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 13, 2021
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE S.A.
    Inventor: Justin B. Rohde
  • Patent number: 10962252
    Abstract: Systems and methods are disclosed herein for a three-fluid liquid-to-air membrane energy exchanger (LAMEE) to condition air (a first overall fluid). A liquid panel assembly used in the LAMEE can include a first fluid circuit for a first cooling fluid (a second overall fluid) and a second fluid circuit for a second cooling fluid (a third overall fluid). The first cooling fluid, also referred to herein as a desiccant, can be configured to circulate through the liquid panel assembly and condition an air stream passing through the LAMEE. The second cooling fluid, also referred to herein as a coolant, can be configured to also circulate through the panel assembly and reject heat from the first cooling fluid. The second cooling fluid can increase the cooling capacity and overall performance of the LAMEE. The first and second cooling fluids can be separate from each other during circulation through the panel assembly.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: March 30, 2021
    Assignee: Nortek Air Solutions Canada, Inc.
    Inventors: Philip Paul LePoudre, Davood Ghadiri Moghaddam, Manfred Gerber
  • Patent number: 10946134
    Abstract: According to some embodiments, a system may treat blood outside the body of a patient. The system may include at least one toxin removal system configured to process blood from at least two places on the patient's body at a rate, for example, of at least 0.5 liters per minute. The system may be configured to raise the pH level of the patient's blood by introducing a fluid at rate of at least 9 liters per hour.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: March 16, 2021
    Assignee: Humanity Life Extension LLC
    Inventor: Patrick Richard Spearman
  • Patent number: 10926015
    Abstract: The present invention relates to a cassette module for controlling fluid flows, in particular for use in blood treatment systems or in infusion systems, wherein the cassette module has at least one first functional layer and at least one second functional layer, wherein the first functional layer has means for the flow guidance of at least one fluid flow, and wherein the cassette module furthermore has at least two membranes of which the first is in contact with the means for the flow guidance of a fluid flow, and wherein the second functional layer is arranged between the two membranes and has means for generating an underpressure between the membranes.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: February 23, 2021
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Stefan Kreber, Manfred Weis, Marina Wenke
  • Patent number: 10926014
    Abstract: The present invention relates to a cassette module for controlling fluid flows, in particular for use in blood treatment systems or in infusion systems, wherein the cassette module comprises at least one base body having means for the flow guidance of at least one fluid flow and at least two membranes which are at least sectionally directly or indirectly in contact with the base body, wherein at least one actuation element is arranged between the membranes by means of which the means for the flow guidance can be acted on.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: February 23, 2021
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Stefan Kreber, Manfred Weis, Marina Wenke, Lothar Leick
  • Patent number: 10918778
    Abstract: A Direct Sodium Removal method, apparatus and solution for treating patients in heart failure, and having a glomerular filtration rate greater than 15 mL/min/1.73 m2, or residual kidney function corresponding to normal to CKD Stage 4, is provided in which a no or low sodium DSR infusate is administered to the peritoneal cavity for a predetermined dwell period and then removed, thereby removing sodium from the body. The resulting elimination of fluid from the patient by i) functioning of the kidneys through urination and ii) direct removal of osmotic ultrafiltrate from the peritoneal cavity, restores serum sodium concentrations to healthy levels and thereby reduces fluid overload in the patient.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: February 16, 2021
    Assignee: Sequana Medical NV
    Inventors: Neil Inhaber, Noel Johnson, Dirk Fengels, Ian Crosbie
  • Patent number: 10881776
    Abstract: The invention relates to a control unit (30) for detecting an overshoot of a first limit value (G1) of a first blood concentration (B1) in a first portion (17a) of a dialysate discharge line (17) downstream of a dialysate chamber (7) of a dialyser (4) of a blood treatment device and upstream of a node point (110) at which a bypass line (100) bypassing the dialyser (4) leads into the dialysate discharge line (17), wherein the bypass line (100) branches off, upstream of the dialysate chamber (7), from a dialysate supply line (15) suitable for supplying dialysate from a dialysate source (16) to the dialysate chamber (7).
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 5, 2021
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventor: Alfred Gagel
  • Patent number: 10857278
    Abstract: A method of identifying a type of a filter, which has at least one retentate side and at least one permeate side separated from one another by at least one filter medium, includes generating a pressure in a fluid, in particular in a liquid, on the retentate side or on the permeate side via a pressure source. The method then includes switching off the pressure source, and measuring a pressure development in the fluid over time subsequent to the switching off of the pressure source.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: December 8, 2020
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Martin Thys, Joachim Noack
  • Patent number: 10835659
    Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 17, 2020
    Assignee: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Daniel J. Rubery, Jr., Scott W. Newell, James M. Brugger, William J. Schnell, William K. Weigel, Steven A. White, Mark T. Wyeth, Jerome James, David Desouza, Joseph E. Turk, Jr., Garrett Casey
  • Patent number: 10792412
    Abstract: A method for venting a dialyzer which has a dialyzate chamber, a blood chamber and a semi-permeable dialyzer membrane separating these two chambers. An overpressure is generated in the dialyzate chamber with respect to the blood chamber for removing air inclusions lying at the surface of the membrane at the dialyzate chamber side after a filling of the dialyzate chamber and before a filling of the blood chamber.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: October 6, 2020
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Peter Kloeffel, Thomas Nuernberger
  • Patent number: 10773263
    Abstract: A system is provided that includes a controller in a control cabinet, a touch screen having a plurality of control icons, a controlled device, and a single safety sensor. The controlled device is a continuous flow centrifugation system. The controller prevents operation of the controlled device without simultaneous contact by a user of both the single safety sensor and a respective one of the plurality of control icons.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: September 15, 2020
    Assignee: ALFA WASSERMANN, INC.
    Inventors: Kurt Spiegel, Sorin Weissman, Bill Lepse, Blaine J. Marsh
  • Patent number: 10758661
    Abstract: An extracorporeal blood processing system comprises a plastic molded compact manifold that supports a plurality of molded blood and dialysate fluidic pathways along with a plurality of relevant sensors, valves and pumps. A disposable dialyzer is connected to the molded manifold to complete the blood circuit of the system. The compact manifold is also disposable in one embodiment and can be detachably installed in the dialysis machine.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: September 1, 2020
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Thomas Patrick Robinson, Charles E. Clemens, David Jacob Mishelevich, James Roswell Braig, Barry Neil Fulkerson, Daniele Ghidoli, Russell Thomas Joseph
  • Patent number: 10744258
    Abstract: A whole blood treatment device includes a first conduit, a second conduit, and a rotating or reciprocating element having a channel. The first and second conduits are fluidly coupled to the rotating or reciprocating element such that the channel is fluidly continuous with the first conduit when the channel is fluidly discontinuous with the second conduit, and such that the channel is fluidly discontinuous with the first conduit when the channel is fluidly continuous with the second conduit. The first conduit is configured to receive whole blood, and the second conduit is configured to receive a regeneration fluid. The channel comprises a surface that is modified with an affinity agent at a concentration effective to allow removal of a target compound from whole blood.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: August 18, 2020
    Assignee: Qualigen Inc.
    Inventor: Michael Poirier
  • Patent number: 10702620
    Abstract: The present application relates to a method for disinfection of a temperature control device for human body temperature control during extracorporeal circulation which temperature control is conducted by use of a heat exchanger and a temperature control liquid circulating through the heat exchanger and the temperature control device. According to the present application, the temperature control device is connected to a temperature control liquid supply and, during operation of the temperature control device for human body temperature control, a disinfectant is selectively added to the temperature control liquid supply upstream of the temperature control device.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: July 7, 2020
    Assignee: LivaNova Deutschland GmbH
    Inventors: Johann Schreyer, Erwin Knott, Olivier Wolfgramm
  • Patent number: 10704021
    Abstract: Acoustic perfusion devices and processes for separating biomolecules from other material in a fluid mixture are disclosed. The devices include an inlet port, an outlet port, and a collection port that are connected to an acoustic chamber. An ultrasonic transducer creates an acoustic standing wave in the acoustic chamber that permits a continuous flow of fluid to be recovered through the collection port while keeping the biological cells within the acoustic chamber to be returned to the bioreactor from which the fluid mixture is being drawn.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: July 7, 2020
    Assignee: FloDesign Sonics, Inc.
    Inventors: Bart Lipkens, Benjamin Ross-Johnsrud, Erik Miller, Mark Brower
  • Patent number: 10695478
    Abstract: A method of supplying treatment parameters for a dialysis treatment includes supplying a predetermined machine-related data record of machine-related treatment parameters that are stipulated independently of the treatment of a specific patient, supplying a patient-related data record from patient-related treatment parameters of a patient to be treated, independently of a dialysis machine or a type of device provided for the treatment, selecting a machine-related data record for a specified dialysis treatment, and using the machine-related data record and the patient-related data record to generate a treatment data record for defining treatment parameters of the dialysis treatment to be performed.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: June 30, 2020
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Peter Eifler, Marco Graefe, Helmut Steil
  • Patent number: 10661003
    Abstract: The invention provides an apparatus of treating water to obtain small water cluster, which comprises one or more illumination devices and one or more holders holding metal particles. The invention also provides a method of preparing the small water cluster and the small water cluster prepared from the apparatus or the method.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: May 26, 2020
    Assignee: TAIPEI MEDICAL UNIVERSITY
    Inventor: Yu-Chuan Liu
  • Patent number: 10653826
    Abstract: Dialysis systems that remove air from a blood circuit are disclosed herein. In an embodiment, a dialysis system includes a dialysis fluid circuit, a blood circuit including an arterial line, a venous line, and an enclosure in fluid communication with the venous line, the enclosure configured to release air through a hydrophobic vent for priming the blood circuit, a blood pump configured to pump fluid through at least the arterial line, a first valve operable with the arterial line and a second valve operable with the venous line, and a pumping and valving algorithm operated after priming to remove air from the blood circuit to control the first and second valves and the blood pump to replace priming fluid with blood from a patient.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: May 19, 2020
    Assignees: Baxter International Inc., Bazter Healthcare SA
    Inventors: Thomas D. Kelly, Marc S. Minkus, Angelito A. Bernardo, William P. Burns, Robert W. Childers, Shincy J. Maliekkal, Matthew R. Muller, Justin B. Rohde, Michael E. Hogard
  • Patent number: 10632243
    Abstract: A dialysis system includes at least one source of fluid for dialysis, a fluid line in fluid communication with the at least one source of fluid, at least one pump positioned and arranged to pump fluid from the at least one source of fluid through the fluid line, a first patient connector configured to be removably placed in fluid communication with the fluid line to allow a blood treatment to be performed using the at least one source of fluid, and a second patient connector configured to be removably placed in fluid communication with the fluid line to allow a peritoneal dialysis treatment to be performed using the at least one source of fluid.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: April 28, 2020
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Justin Belanger Rohde, Marc Steven Minkus
  • Patent number: 10625007
    Abstract: A blood purification apparatus and a blood purification system that is operable with increased ease even if a blood purifier requires special treatment conditions and operational settings is used. A blood purification apparatus includes a blood purifier for giving blood purification treatment by purifying blood of a patient; and a control device that executes, in accordance with preset treatment conditions and/or operational settings, an operation for performing the blood purification treatment or an operation associated with the blood purification treatment.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 21, 2020
    Assignee: Nikkiso Company Limited
    Inventors: Kentaro Kogoshi, Masahiro Aoshima, Satoshi Takeuchi
  • Patent number: 10610634
    Abstract: A blood purification apparatus includes a blood circuit through which blood of a patient extracorporeally circulate, and a dialyzer that purifies the blood flowing in the blood circuit.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: April 7, 2020
    Assignee: Nikkiso Company Limited
    Inventors: Shinya Hasegawa, Kunihiko Akita, Masahiro Toyoda
  • Patent number: 10583244
    Abstract: Embodiments of the current disclosure are directed toward systems, devices and methods for diabetes management. In particular, the present disclosure relates to devices and methods for dispensing insulin to a patient. A portable fluid infusion device, comprising a disposable part (DP) and a reusable part (RP) is disclosed. The DP comprises a first reservoir and a second reservoir, the second reservoir less than or equal to the first reservoir in length, while the RP comprises a first compartment configured to receive the first reservoir, a second compartment configured to receive the second reservoir and a gasket for sealing a junction between the second reservoir and the second compartment upon connection of the RP and the DP.
    Type: Grant
    Filed: May 5, 2016
    Date of Patent: March 10, 2020
    Assignee: TRIPLE JUMP ISRAEL LTD.
    Inventors: Ofer Yodfat, Guy Shinar, Yishai Ben-David
  • Patent number: 10569000
    Abstract: A method includes: receiving measurements of a blood-related parameter corresponding to a patient undergoing hemodialysis; estimating a value of one or more hemodialysis treatment-related parameters by applying a vascular refill model based on the received measurements of the blood-related parameter, wherein the one or more hemodialysis treatment-related parameters are indicative of an effect of vascular refill on the patient caused by the hemodialysis; determining, based on the one or more estimated values of the one or more hemodialysis treatment-related parameters, a hemodialysis treatment-related operation; and facilitating performance of the treatment-related operation. The vascular refill model is a two-compartment model based on a first compartment corresponding to blood plasma in the patient's body, a second compartment based on interstitial fluid in the patient's body, and a semi-permeable membrane separating the first compartment and the second compartment.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: February 25, 2020
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Aurelio A. De los Reyes, V, Doris H. Fuertinger, Franz Kappel, Anna Meyring-Wosten, Stephan Thijssen, Peter Kotanko
  • Patent number: 10532147
    Abstract: The invention relates to a method of flushing an extracorporeal blood circuit, preferably an extracorporeal blood circuit of a dialysis machine, with a flushing liquid, wherein the flushing liquid contains an anticoagulant agent, preferably heparin. The invention further relates to an extracorporeal blood treatment unit, preferably to a dialysis machine, having an extracorporeal blood circuit and a control unit, wherein the control unit is configured to carry out a flushing method in accordance with one of the preceding claims before the start of the treatment and/or intermittently during the treatment.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: January 14, 2020
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Ralf Wojke, Paul Wieneke
  • Patent number: 10525182
    Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: January 7, 2020
    Assignee: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Daniel J. Rubery, Jr., Scott W. Newell, James M. Brugger, William J. Schnell, William K. Weigel, Steve A. White, Mark T. Wyeth, Jerome James, David Desouza, Joseph E. Turk, Jr., Garrett Casey
  • Patent number: 10507279
    Abstract: A control system (23) is arranged to control the operation of an apparatus (200) for extracorporeal blood treatment. The apparatus (200) comprises an extracorporeal blood circuit (20) and a connection system (C) for connecting the blood circuit (20) to the vascular system of a patient. The blood circuit (20) comprises a blood processing device (6), and at least one pumping device (3). The control system is operable to switch between a pre-treatment mode and a blood treatment mode. The blood treatment mode involves operating the blood circuit (20) to pump blood from the vascular system via the connection system (C) through the blood processing device (6) and back to the vascular system via the connection system (C). The control system (23) is operable to obtain measurement data from at least one energy transfer sensor (40) arranged to sense a transfer of energy between the patient and the connection system (C) or between the patient and the blood circuit (20).
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 17, 2019
    Assignee: Gambro Lundia AB
    Inventors: Bo Olde, Kristian Solem, Thomas Hertz, Jan Sternby, Anders Wieslander
  • Patent number: 10500327
    Abstract: A blood circuit assembly for a dialysis unit may include an organizing tray, a pair of pneumatic pumps mounted to the organizing tray for circulating blood received from a patient through a circuit including a dialyzer unit and returned to the patient, an air trap mounted to the organizing tray arranged to remove air from blood circulating in the circuit, a pair of dialyzer connections arranged to connect to the inlet and outlet of a dialyzer unit, and a pair of blood line connectors, one inlet blood line connector for receiving blood from the patient and providing blood to the pneumatic pumps and the other outlet blood line connector for returning blood to the patient.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: December 10, 2019
    Assignee: DEKA Products Limited Partnership
    Inventors: Kevin L. Grant, James D. Dale, Michael J. Wilt, Jason A. Demers, David E. Collins, Brian D. Tracey