Peritoneal Dialysis Patents (Class 604/29)
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Patent number: 8815095Abstract: An artificial kidney that regenerates dialysate includes: a catheter having an inflow lumen and an outflow lumen for communication with a peritoneal cavity of a patient; a fluid circuit in fluid communication with the catheter for circulating dialysate into, through and out of the peritoneal cavity; a pump configured to circulate the dialysate; a cleaning cartridge coupled to the fluid circuit for removing solutes from the dialysate, including a therapeutically effective amount of urea from the dialysate as the dialysate circulates along the fluid circuit; and wherein the fluid circuit is configured to receive a volume of ultrafilterate removed from the patient, such that the pump can mix the ultrafiltrate volume with the dialysate to an increase an overall therapy fluid volume.Type: GrantFiled: September 18, 2009Date of Patent: August 26, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventor: Brian R. Micheli
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Patent number: 8801652Abstract: The invention provides, inter alia, automated medical methods and apparatus that test PD effluent in a flow path (e.g., with an APD system or CAPD setup) to detect, for example, the onset of peritonitis, based on optical characteristics of the effluent resolved at cellular scales of distance. For example, according to one aspect of the invention, an APD machine includes, in an effluent flow path, apparatus for early stage peritonitis detection comprising an illumination source and a detector. The source is arranged to illuminate peritoneal effluent in a chamber that forms part of the flow path, and the detector is arranged to detect illuminant scattered by the effluent. The detector detects that reflected or scattered illuminant at a cellular scale of resolution, e.g., on a scale such that separate cellular-sized biological (or other) components in the effluent can be distinguished from one another based on scattering events detected by the detector.Type: GrantFiled: July 23, 2007Date of Patent: August 12, 2014Assignee: Fresenius Medical Care Holding, Inc.Inventors: Frank J. Landherr, Lynn E. Jensen, Jay M. Lan
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Publication number: 20140220699Abstract: 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.Type: ApplicationFiled: March 15, 2013Publication date: August 7, 2014Applicant: MEDTRONIC, INC.Inventors: Bryant J. Pudil, Thomas E. Meyer, David B. Lura, Martin T. Gerber
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Publication number: 20140216994Abstract: Disclosed is an apparatus having a heating function for hemodialysis, hemodiafiltration, hemofiltration or peritoneal dialysis, wherein the apparatus includes at least one of pipe for transferring at least one fluid of blood and dialsate, and a heating unit for heating at least one fluid of blood and dialsate, wherein the fluids to be heated by the heating unit are substances to be injected into human body; and the heating unit is arranged for measuring flow rates of the fluids to be heated, and injecting temperatures related with the flow rate to heat the fluids to be heated. The heating unit comprises: flow passages through which the fluids to be heated are flowed; a heater formed as a part of the flow passages, for generating heat; and a cover means including a first connection portion through which the fluids enter the flow passages, and a second connection portion through which the fluids come out from the flow passages.Type: ApplicationFiled: January 3, 2012Publication date: August 7, 2014Applicant: WOODYOUNG MEDITECH CO., LTD.Inventor: Ho Youn Ki
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Publication number: 20140221910Abstract: The invention relates to a method for prescribing a dialysis treatment comprising the following steps: collecting patient specific data, determining at least one target, defining a series of values of the type [V;t] which allow to achieve said target wherein V represents the volume of dialysate used and t the duration of treatment, based on said patient specific data, displaying said series of values on a map. The invention also relates to a system using this method.Type: ApplicationFiled: April 10, 2014Publication date: August 7, 2014Applicant: Debiotech S.A.Inventors: Diego MASTALLI, Alfio QUARTERONI, Paolo ZUNINO
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Publication number: 20140213962Abstract: A medical device comprising a socket unit for connecting a plug unit of a device for providing medical fluids, wherein the medical device is in particular an extra-corporal blood treatment device. The medical device provides an automated connection of the plug unit to the socket unit by means of a connecting mechanism for establishing a connection between the at least one connecting piece and the at least one connector. The connecting mechanism has a drive unit that has at least one movable drive body that carries out a translational and/or rotational movement. The connecting mechanism comprises a position detection mechanism for detecting the linear position and/or the angular position of the drive body.Type: ApplicationFiled: January 28, 2014Publication date: July 31, 2014Inventor: Stefan Konrad Marterstock
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Patent number: 8790586Abstract: The present application relates to a molecular exchange device (1) for use with an analysis and control apparatus and a method of manufacturing a molecular exchange device.Type: GrantFiled: September 28, 2007Date of Patent: July 29, 2014Assignee: Probe Scientific LimitedInventors: Mark Thomas O'Connell, Stewart Jeffrey Block
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Publication number: 20140207055Abstract: The invention concerns a system and a method of use of said system for performing fluid administration on a patient, the system comprising: a liquid pump (1), a liquid distribution system (2) connected to said pump (1) in such a way that liquid can flow from the liquid distribution system (2) to the pump (1) and vice versa, liquid supply means (3) for supplying liquid to a patient (4) via said liquid distribution system (2) and said pump (1), a patient conduit (5) adapted for connecting said liquid distribution system (2) to a patient (4), the system being characterized by the fact that said liquid distribution system (2) comprises two distinct hub chambers (7,8), the first hub chamber (7) including at least one liquid supply port with dedicated valve means (9), one patient port with dedicated valve means (10) and one pump inlet (26), the second hub chamber (8) including at least, one patient port (18) or warmer port (16) with dedicated valve means and one pump outlet (27), said system furthermore comprisiType: ApplicationFiled: November 14, 2013Publication date: July 24, 2014Applicant: DEBIOTECH S.A.Inventors: Frédéric NEFTEL, Florent Junod, Didier Vecten
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Patent number: 8784359Abstract: A peritoneal dialysis (PD) system that includes a disposable PD cassette including a base having a substantially planar portion and a dome-shaped protrusion extending from the substantially planar portion and a flexible membrane attached to the base and covering a recessed region of the dome-shaped protrusion to form a pumping chamber between the flexible membrane and the recessed region of the dome-shaped protrusion. The system also includes a PD machine including a deck and a door hinged from one side to the deck. The door and the deck can cooperate to form a cassette compartment, and the door has a cylindrical recess positioned to receive the dome-shaped protrusion of the base of the disposable PD cassette when the disposable PD cassette is disposed in the cassette compartment and the door is closed.Type: GrantFiled: April 22, 2011Date of Patent: July 22, 2014Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Kulwinder S. Plahey, Frank L. Hedmann, Stephan Klatte, Thomas Irvin Folden
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Patent number: 8784358Abstract: An intelligent automatic peritoneal dialysis device injects a dialysate accommodated in a dialysate container into a live animal via an input duct, elicits a waste liquid from the animal via an output duct, and concentrates the waste liquid in a waste liquid container. A flow direction control valve controls the flow direction of the dialysate and the waste liquid during the overall peritoneal dialysis treatment process.Type: GrantFiled: January 27, 2011Date of Patent: July 22, 2014Inventor: Ta-Lun Tan
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Patent number: 8777892Abstract: A portable peritoneal dialysis system for a patient includes an inlet port for providing inflow to the patient's peritoneal cavity, an outlet port for providing outflow from the patient's peritoneal cavity, and a volume of dialysate for flow into and out of the patient's peritoneal cavity, thereby removing from the dialysate uremic waste metabolites that have diffused into the dialysate. The portable peritoneal dialysis system also includes a closed liquid flow loop, including a pump, for flowing the dialysate into and out of the patient's peritoneal cavity, and an organic- and phosphate-removing stage, including at least one replaceable cartridge in the closed liquid flow loop, the cartridge containing material for removing organic compounds and phosphate from dialysate removed from the patient's peritoneal cavity.Type: GrantFiled: November 2, 2009Date of Patent: July 15, 2014Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Harold F. Sandford, Norma J. Ofsthun, Amanda K. Stennett, Jiunn Yeong Teo, Cheryl Ford, Benjamin J. Lipps
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Patent number: 8777891Abstract: The invention provides, inter alia, automated medical methods and apparatus that test PD effluent in a flow path (e.g., with an APD system or CAPD setup) to detect, for example, the onset of peritonitis, based on optical characteristics of the effluent resolved at cellular scales of distance. For example, according to one aspect of the invention, an APD machine includes, in an effluent flow path, apparatus for early stage peritonitis detection comprising an illumination source and a detector. The source is arranged to illuminate peritoneal effluent in a chamber that forms part of the flow path, and the detector is arranged to detect illuminant scattered by the effluent. The detector detects that reflected or scattered illuminant at a cellular scale of resolution, e.g., on a scale such that separate cellular-sized biological (or other) components in the effluent can be distinguished from one another based on scattering events detected by the detector.Type: GrantFiled: January 25, 2008Date of Patent: July 15, 2014Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Frank J. Landherr, Jay M. Lan
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Publication number: 20140194809Abstract: A peritoneal dialysis system includes a base peritoneal dialysis system and a peritoneal dialysis fluid exchange system that operates independently of the base system. The base system includes a first cassette including a first patient line configured to be connected to a patient, and a PD cycler. The PD cycler receives the first cassette, and includes a pump that cooperates with the first cassette to deliver dialysate to and drain dialysate from a peritoneal cavity of the patient via the first patient line. The peritoneal dialysis fluid exchange system includes a second cassette including a second patient line configured to be connected to the patient and a fluid exchange device that receives the second cassette. The fluid exchange device includes a data exchange interface operable to transfer patient treatment data from the peritoneal dialysis fluid exchange system to the base peritoneal dialysis system.Type: ApplicationFiled: January 10, 2013Publication date: July 10, 2014Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.Inventors: Kulwinder S. Plahey, Sean Farrell
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Publication number: 20140188040Abstract: A peritoneal dialysis system is provided that includes a hardware unit, a disposable unit received by the hardware unit, and a controller. The hardware unit includes a recessed area, a piston having a contact surface, a pneumatic source for supplying a negative pressure, and an actuator configured to move the contact surface of the piston into and out of at least a portion of the recessed area. The disposable unit includes an outer member fitted at least partially within the recessed area of the hardware unit and a moveable membrane positioned between the contact surface of the piston and the outer member when the disposable unit is received by the hardware unit. The controller is configured to cause the pneumatic source to apply the negative pressure to the moveable membrane so as to conform the moveable membrane to a shape of the contact surface of the piston and follow the contact surface when the piston is moved towards and away from the outer member fitted at least partially within the recessed area.Type: ApplicationFiled: March 6, 2014Publication date: July 3, 2014Applicant: Baxter International Inc.Inventors: Donald A. Busby, Peter A. Hopping, Robert W. Childers, Richard E. Kienman, Ian Richardson
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Patent number: 8764702Abstract: A dialysis system includes a dialysis instrument; a disposable cassette operable with the dialysis instrument; a dual lumen patient line including dual lumens, the dual lumen patient line connected to the disposable cassette; and a priming sequence in which ends of the dual lumens are connected together, a first pump chamber of the disposable cassette pumps fluid through the dual lumens until fluid reaches a second pump chamber of the disposable cassette.Type: GrantFiled: July 5, 2007Date of Patent: July 1, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Robert W. Childers, Peter A. Hopping
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Publication number: 20140180200Abstract: A medical device having a heater with at least one heating element which has mains voltage applied to it by a heating control unit. The heating control unit includes a monitoring arrangement and a switching arrangement. The monitoring arrangement can recognize the zero crossings of the mains voltage, and the switching arrangement can switch the at least one heating element on or off in the zero crossing. The heating control unit controls the power of the heating by switching on and off of one or more half cycles of the mains AC voltage.Type: ApplicationFiled: February 13, 2014Publication date: June 26, 2014Applicant: Fresenius Medical Care Deutschland GmbHInventors: Frank L. Hedmann, Sven Sebesta, Ulrich Wernicke
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Patent number: 8758288Abstract: A gasket member is provided for use with a fluid processing cassette having a plurality of valve stations and a fluid processing system having a valve assembly with a plurality of valve actuators. The valve stations and valve actuators are positioned in discrete locations, with the location of each valve station corresponding to the location of an associated valve actuator. The gasket member includes a filter layer and a support layer, the support layer being made of a support material. The support layer includes discrete portions of support material corresponding generally to the discrete locations of the valve stations and the valve actuators.Type: GrantFiled: January 24, 2011Date of Patent: June 24, 2014Assignee: Fenwal, Inc.Inventors: Salvatore Manzella, Jr., Timothy Getschman
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Patent number: 8740837Abstract: A dialysis machine includes: a hardware unit including at least one pump actuator, at least one valve actuator and a cassette interface, the cassette interface including: (i) a plate that abuts the cassette; (ii) at least one pump aperture defined by the plate; (iii) at least one pump head moveable out of and retractable into the at least one pump aperture to operate a pumping portion of the cassette; (iv) at least one valve aperture defined by the plate; (v) at least one valve apparatus moveable out of and retractable into the at least one valve aperture to operate a valve portion of the cassette; (vi) at least one sensor aperture defined by the plate; and (vii) at least one sensor located in the least one sensor aperture, the at least one sensor operable with a sensor portion of the cassette.Type: GrantFiled: December 4, 2013Date of Patent: June 3, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Robert W. Childers, Brian Lauman
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Patent number: 8740836Abstract: A dialysis machine includes: a hardware unit including at least one pump actuator, at least one valve actuator and a cassette interface, the cassette interface including: (i) a plate that abuts the cassette; (ii) at least one pump aperture defined by the plate; (iii) at least one pump head moveable out of and retractable into the at least one pump aperture to operate a pumping portion of the cassette; (iv) at least one valve aperture defined by the plate; (v) at least one valve apparatus moveable out of and retractable into the at least one valve aperture to operate a valve portion of the cassette; (vi) at least one sensor aperture defined by the plate; and (vii) at least one sensor located in the least one sensor aperture, the at least one sensor operable with a sensor portion of the cassette.Type: GrantFiled: December 4, 2013Date of Patent: June 3, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Robert W. Childers, Brian Lauman
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Patent number: 8731726Abstract: A method is provided for regulating fluid pump pressures by detecting an elevation differential between a fluid flow control device and the distal end of a fluid line in communication with the fluid flow control device. A fluid flow control device, for instance a peritoneal dialysis device, is at a first height, a distal end of a fluid line is at a second height, and a valved outlet, when open, affords communication between the fluid flow control device and the distal end of the fluid line. The elevation differential is correlatable with a pressure measurable during a calibration procedure provided as a part of the methodology.Type: GrantFiled: December 14, 2010Date of Patent: May 20, 2014Assignee: DEKA Products Limited PartnershipInventors: Larry B. Gray, Robert J. Bryant
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Apparatus and methods for early stage peritonitis detection including self-cleaning effluent chamber
Patent number: 8728023Abstract: The invention provides, inter alia, automated medical methods and apparatus that test PD effluent in a flow path (e.g., with an APD system or CAPD setup) to detect, for example, the onset of peritonitis, based on optical characteristics of the effluent resolved at cellular scales of distance. For example, according to one aspect of the invention, an APD machine includes, in an effluent flow path, apparatus for early stage peritonitis detection comprising an illumination source and a detector. The source is arranged to illuminate peritoneal effluent in a chamber that forms part of the flow path, and the detector is arranged to detect illuminant scattered by the effluent. The detector detects that reflected or scattered illuminant at a cellular scale of resolution, e.g., on a scale such that separate cellular-sized biological (or other) components in the effluent can be distinguished from one another based on scattering events detected by the detector.Type: GrantFiled: January 25, 2008Date of Patent: May 20, 2014Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Frank J. Landherr, Jay M. Lan -
Patent number: 8715235Abstract: A dialysis fluid flow control system includes a pumping cassette interface including a pump area operable with a pump chamber of a disposable cassette; the cassette interface further including a volumetric reference chamber used in a volumetric control of a dialysis fluid pumped pneumatically into and out of the pump chamber of the disposable cassette; a heater connected operably to the cassette interface; and a controller connected operably to the heater so as to cause the heater to heat at least a portion of the cassette interface to a desired temperature.Type: GrantFiled: July 5, 2007Date of Patent: May 6, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Robert W. Childers, Bruce E. Huitt
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Patent number: 8715221Abstract: The present invention relates to a wearable peritoneal dialysis system and a replaceable cartridge in the wearable peritoneal dialysis system that regenerates the peritoneal dialysis solution without removing essential ions from the solution and, consequently, the patient. The invention also relates to methods of removing uremic waste metabolites from a patient using the wearable peritoneal dialysis system. A source of one or more enzymes that degrades uremic waste metabolites can be administered orally in conjunction with use of the wearable peritoneal dialysis system such that the load of toxins needing to be eliminated by the wearable peritoneal dialysis system is reduced. The wearable peritoneal dialysis system is meant to operate continuously or semi-continuously, its components small and light enough that it can be comfortably worn by a patient constantly, without burden.Type: GrantFiled: March 8, 2006Date of Patent: May 6, 2014Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Conor Curtin, Benjamin J. Lipps, Norma J. Ofsthun, Harold F. Sandford
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Publication number: 20140121590Abstract: Under one aspect of the present invention, a catheter includes an elongate member; a plurality of septa configured to define a plurality of lumens along the elongate member; and a plurality of slits defined through the elongate member, each slit configured to provide fluidic communication between an environment about the catheter and a corresponding lumen of the plurality of lumens, at least one slit having a different length than at least one other slit.Type: ApplicationFiled: October 31, 2012Publication date: May 1, 2014Applicant: Sequana Medical AGInventor: Thomas DEGEN
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Patent number: 8708950Abstract: A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include patient line state detector for detecting whether a patient line is primed before it is to be connected to the patient. The patient line state detector can also the ability to detect whether a patient line has been properly mounted for priming. Both patient line presence/absence and fill state can be determined using an optical system, e.g., one that employs a single optical sensor.Type: GrantFiled: July 7, 2011Date of Patent: April 29, 2014Assignee: DEKA Products Limited PartnershipInventors: Jacob W. Scarpaci, Simon C. Helmore, Eric J. VanWyk, Matthew J. Finch
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Patent number: 8702985Abstract: The present invention relates to a dialysis machine having a coupling surface for the coupling of a fluid system, in particular for the coupling of a cassette, and having an actuator arranged on the coupling surface for the movement of an actuator region of the fluid system. In accordance with the invention, a heating element is now provided for the heating of the actuator, with the liquid being able to be heated via the actuator in the actuator region of the fluid system.Type: GrantFiled: January 26, 2011Date of Patent: April 22, 2014Assignee: Fresenius Medical Care Deutschland GmbHInventors: Sven Sebesta, Ulrich Wernicke
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Patent number: 8696613Abstract: The invention relates to a method for prescribing a dialysis treatment comprising the following steps: collecting patient specific data, determining at least one target, defining a series of values of the type [V;t] which allow to achieve said target wherein V represents the volume of dialysate used and t the duration of treatment, based on said patient specific data, displaying said series of values on a map. The invention also relates to a system using this method.Type: GrantFiled: November 2, 2011Date of Patent: April 15, 2014Assignee: Debiotech S.A.Inventors: Diego Mastalli, Alfio Quarteroni, Paolo Zunino
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Patent number: 8696614Abstract: A split-tip catheter for placement within the vasculature of a patient and for use in hemodialysis or other suitable procedures is disclosed. In one embodiment, the split-tip catheter includes a catheter body that defines a first lumen and a second lumen. The catheter body further comprises a split distal region, including a venous segment that defines a distal portion of the first lumen and an arterial segment that defines a distal portion of the second lumen. The venous segment includes a recess extending proximally of a nose portion; and a lateral opening in fluid communication with the first lumen. The arterial segment is separate from the venous segment and is removably seatable in the recess provided by the venous segment such that it “nests” therein. The arterial segment also includes a lateral opening in fluid communication with the second lumen.Type: GrantFiled: November 11, 2011Date of Patent: April 15, 2014Assignee: C. R. Bard, Inc.Inventors: Colin S. Gregersen, Ryan T. Moehle, Ryan C. Patterson, William D. Woodley, Mark E. Walton
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Publication number: 20140094740Abstract: A dialysis disposable sterilization apparatus includes a connector and a protective cap fitted to the connector. The apparatus also includes a sealing ring provided by one of the protective cap or the connector, the sealing ring forming a seal between the cap and the connector, the seal capable of holding pressure. The apparatus further includes a stabilization rib provided by the connector, the stabilization rib positioned and arranged to (i) tend to prevent the protective cap from vibrating about the sealing ring and (ii) enable a sterilizing gas to flow past the stabilization rib to contact the sealing ring.Type: ApplicationFiled: December 5, 2013Publication date: April 3, 2014Applicants: Baxter Healthcare S.A., Baxter International Inc.Inventors: Patrick Jong Lee, Serhan Acikgoz, Yuanpang Samuel Ding
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Patent number: 8684971Abstract: A peritoneal dialysis system is provided that includes a hardware unit, a disposable unit received by the hardware unit, and a controller. The hardware unit includes a recessed area, a piston having a contact surface, a pneumatic source for supplying a negative pressure, and an actuator configured to move the contact surface of the piston into and out of at least a portion of the recessed area. The disposable unit includes an outer member fitted at least partially within the recessed area of the hardware unit and a moveable membrane positioned between the contact surface of the piston and the outer member when the disposable unit is received by the hardware unit. The controller is configured to cause the pneumatic source to apply the negative pressure to the moveable membrane so as to conform the moveable membrane to a shape of the contact surface of the piston and follow the contact surface when the piston is moved towards and away from the outer member fitted at least partially within the recessed area.Type: GrantFiled: January 30, 2013Date of Patent: April 1, 2014Assignee: Baxter International Inc.Inventors: Donald D. Busby, Peter A. Hopping, Robert W. Childers, Rick E. Kienman, Ian Richardson
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Publication number: 20140088493Abstract: Automated peritoneal dialysis (APD) cycler systems and methods are disclosed. The APD cycler can include a heater tray with load cells configured to measure the weight of fluid contained within a heater bag and/or a drain bag. The load cells can be toggleable between enabled and disabled configurations. The APD cycler can include a pressure-based volume measurement system, which can be used to confirm measurements made by the load cells. In some embodiments, the APD cycler can have algorithms for tracking an estimated patient volume to prevent overfilling the patient.Type: ApplicationFiled: December 2, 2013Publication date: March 27, 2014Applicant: VR MEDICAL TECHNOLOGY, LLCInventor: LI PAN
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Patent number: 8679054Abstract: A dialysis machine includes: a hardware unit including at least one pump actuator, at least one valve actuator and a cassette interface, the cassette interface including: (i) a plate that abuts the cassette; (ii) at least one pump aperture defined by the plate; (iii) at least one pump head moveable out of and retractable into the at least one pump aperture to operate a pumping portion of the cassette; (iv) at least one valve aperture defined by the plate; (v) at least one valve apparatus moveable out of and retractable into the at least one valve aperture to operate a valve portion of the cassette; (vi) at least one sensor aperture defined by the plate; and (vii) at least one sensor located in the least one sensor aperture, the at least one sensor operable with a sensor portion of the cassette.Type: GrantFiled: June 20, 2012Date of Patent: March 25, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Robert W. Childers, Brian Lauman
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Publication number: 20140058316Abstract: A catheter for use in continuous flow peritoneal dialysis comprising an inflow tube and outflow tube, both connected on one end to a dialysis machine. The inflow tube is divided into a plurality of inflow auxiliary tubes, and the outflow tube is divided into a plurality of outflow auxiliary tubes, with all auxiliary tubes encased in a single external tube. The auxiliary tubes each contain a plurality of apertures for the rapid and efficient movement of dialysis solution in and out of the peritoneal cavity to reach a larger surface area without kinking or blocking. The external tube comprises a tunnel for insertion of a fiber optic borescope to view the dialysis procedure. The auxiliary tubes are covered by a sheath prior to implantation, which is then removed, deploying, preferably into an open-basket shape, the auxiliary tubes within the peritoneal cavity to allow for the continuous flow of dialysis solution.Type: ApplicationFiled: August 8, 2013Publication date: February 27, 2014Inventors: Anmol Gupta, Bharat K. Gupta, Mohit Gupta
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Publication number: 20140058315Abstract: A catheter for use in continuous flow peritoneal dialysis comprising an inflow tube and an outflow tube, wherein both are connected on one end to a dialysis machine. The inflow tube is divided into a plurality of smaller inflow auxiliary tubes, and the outflow tube is divided into a plurality of smaller outflow auxiliary tubes. The auxiliary tubes each contain a plurality of apertures for the rapid and efficient movement of dialysis solution in and out of the peritoneal cavity. The auxiliary tubes are covered by a sheath prior to implantation, which is then removed, thereby deploying, preferably into an open-basket shape, the auxiliary tubes within the peritoneal cavity which separate to allow for the continuous flow of dialysis solution. This reduces the time required to complete the procedure and increases its efficiency by reaching a larger surface area of the peritoneal cavity, all without kinking or blocking.Type: ApplicationFiled: August 23, 2012Publication date: February 27, 2014Inventors: Anmol Gupta, Mohit Gupta, Bharat K. Gupta
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Patent number: 8657801Abstract: The invention provides a switching device for an irrigation system. The switching device provides selective communication between a supply port to which a supply of fluid under pressure can be attached and a balloon port to which a fixing balloon of a catheter can be attached, and between the supply port and a port to which a liquid reservoir can be attached. By use of a selection handle, the user can deform conduits in a pre-determined sequence and thus control an irrigation procedure by opening and closing fluid flow in various conduits. The invention further provides an irrigation device incorporating the switching device and a method of controlling a fluid flow e.g. in an irrigation system.Type: GrantFiled: March 14, 2008Date of Patent: February 25, 2014Assignee: Coloplast A/SInventors: Jakob Ilskov Nielsen, Jens Peter Bredholt, Alister David Morton, Klaus Sommer Ipsen, Henrik Jeppesen
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Publication number: 20140046248Abstract: The present invention relates to a device designed to promote heat exchange to/from a medical liquid ML. The device comprises an inlet, an outlet and a duct adapted to contain a flow of the medical liquid ML. The duct is enclosed between two walls, has a planar development defining a mean plane ?, and comprises means for promoting turbulence in the flow of the liquid ML. At least one wall of the duct is suitable to allow a heat exchange with the flow of the liquid ML. The means for promoting turbulence comprises a plurality of fins, wherein each fin has a lenticular cross section and defines its own mean plane ?n substantially perpendicular to plane ?. The invention also relates to a disposable cassette for use in a PD/APD treatment, comprising a polymeric structure defining a first part, suitable for pumping and distributing the medical liquid ML, SML, and a second part comprising a device similar to the one described above.Type: ApplicationFiled: June 5, 2012Publication date: February 13, 2014Applicant: Sis-ter S.p.A.Inventors: Massimo Fini, Reinhold Reiter
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Patent number: 8641659Abstract: The invention relates to a method and device for dialysis and or bulk fluid removal by generating a fibrosis chamber within a body cavity and performing dialysis or bulk fluid removal. An implantable medical device is described having a fibrosis chamber and a pump. A dialysis chamber and an optional electrodialysis unit can further be provided. An additional controller uses sensory feedback to regulate the fluid levels by altering the extracellular fluid retention within the fibrosis chamber. This device can be used for the treatment of patients with chronic kidney disease who may also be suffering from cardiorenal syndrome and hypertension.Type: GrantFiled: February 17, 2012Date of Patent: February 4, 2014Assignee: Medtronic, Inc.Inventors: Orhan Soykan, Carl Schu, Kimberly Chaffin
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Patent number: 8644692Abstract: A method for heating medical fluid with different supply voltages comprising: configuring first, second and third switches in electrical communication with first and second power lines, the switches configured such that (i) in a first switch state first and second heater elements are placed in series, solely via a closing of the first switch, for operation with a first supply voltage applied to the first and second power lines, and (ii) in a second switch state the first and second heater elements are placed in parallel, via the second and third switches, for operation with a second supply voltage applied to the first and second power lines, and configuring a control element to automatically set the switches in the first or the second switch state based upon a signal sent to the control element indicative of the first or the second supply voltage.Type: GrantFiled: March 19, 2012Date of Patent: February 4, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: John Bedingfield, Brian Lauman
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Publication number: 20140021111Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.Type: ApplicationFiled: September 26, 2013Publication date: January 23, 2014Applicants: Baxter Healthcare S.A., Baxter International Inc.Inventors: Rodolfo G. Roger, Michael E. Hogard, Thomas D. Kelly
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Publication number: 20140018728Abstract: A medical fluid pumping system that includes a medical fluid pumping machine that includes an actuator and a medical fluid cassette that can be disposed within a cassette enclosure of the medical fluid pumping machine. A member is disposed within a fluid pump chamber of the medical fluid cassette and is magnetically attracted to the actuator such that the member and the actuator can be coupled together when the cassette is disposed within the cassette enclosure.Type: ApplicationFiled: December 16, 2011Publication date: January 16, 2014Applicant: Fresenius Medical Care Holdings, Inc.Inventors: Kulwinder S. Plahey, Robert Matthew Ohline, Sean Farrell, Anthony Thomas Ortega
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Publication number: 20130345623Abstract: The present invention relates to the field of information display and forwarding with medical machines, in particular display and forwarding of information pertaining to the medical machine such as treatment information, equipment information and software codes. The invention is based on the problem of providing the patient with information about his/her treatment in a simple and convenient manner and/or providing the operator or service personnel of the medical machine information pertaining to the equipment of the medical machine and/or its software options in a simple and convenient manner. A method and a device in which characteristic graphic codes are generated and displayed and which can be input and decoded by a portable device are proposed for this purpose.Type: ApplicationFiled: June 24, 2013Publication date: December 26, 2013Applicant: Fresenius Medical Care Deutschland GmbHInventors: Pascal KOPPERSCHMIDT, Carsten MUELLER, Matthias PFEUFFER
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Publication number: 20130345622Abstract: A dialysis system includes a source of effluent dialysis fluid, a drain container configured to receive the effluent dialysis fluid through a drain tube, and a load cell. The drain container includes an at least semi-rigid body defining a first key feature. The load cell includes a second, mating key feature positioned and arranged to mate with the first key feature.Type: ApplicationFiled: August 28, 2013Publication date: December 26, 2013Applicants: Baxter Healthcare S.A., Baxter International Inc.Inventors: Loren Lundtveit, Melissa Schubert, James Pappis, Don A. Smith
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Publication number: 20130345621Abstract: A method for a hybrid blood and peritoneal dialysis (“PD”) machine comprising: (i) determining whether a previous treatment left a last fill of dialysate in a patient's peritoneum; (ii) if a next treatment is a PD treatment, and if the previous treatment did not leave the last fill of dialysate, causing a PD treatment in which a first cycle is a fill cycle to be initiated; (iii) if the next treatment is a PD treatment, and if the previous treatment did leave the last fill of dialysate, causing a PD treatment in which a first cycle is a last fill drain cycle to be initiated; and (iv) if the next treatment is a blood treatment and if the previous treatment did leave the last fill of dialysate, causing a blood treatment including a last fill drain cycle to be initiated.Type: ApplicationFiled: August 26, 2013Publication date: December 26, 2013Applicants: Baxter Healthcare S.A., Baxter International Inc.Inventors: Gino Cicchello, Christian Bernard, Robert W. Childers, Anthony Simiele
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Publication number: 20130331774Abstract: This disclosure relates to medical fluid cassettes and related systems and methods. In certain aspects, a medical fluid cassette includes a base having a first region and a second region, a first membrane overlying the first region of the base, and a second membrane overlying the second region of the base. The second membrane is configured to rebound away from the base when a force used to press the second membrane toward the base is released.Type: ApplicationFiled: June 8, 2012Publication date: December 12, 2013Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.Inventors: Sean Farrell, Joseph Michael Fallon, Kulwinder S. Plahey, Michael James Beiriger
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Publication number: 20130331775Abstract: A peritoneal dialysis machine including a membrane pump and a touch screen display that includes a mode-indicating portion and an operation-descriptive portion, the mode-indicating portion having a plurality of touch sensitive indicia each indicating one of a plurality of modes in which the machine can operate, the display being used to keep a patient continually informed of which one mode of at least three operating modes the machine is operating in, as the operation-descriptive portion changes to display details of a specific operation being carried out within the one mode, the indicia for each of the three operating modes always being visible to the patient while the machine is operating, the operating mode being selected by the patient touching one of the indicia on the screen.Type: ApplicationFiled: August 14, 2013Publication date: December 12, 2013Applicants: Baxter Healthcare S.A, Baxter Healthcare IncInventors: Andrea Britton, Donald Busby, Eric Callahan, Robert Childers, Peter Hopping, Seyed Khorashahi, William Reese, Randall Sharo, Debra Toczko, Li Yue
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Publication number: 20130324915Abstract: A peritoneal dialysis system includes: an enclosure including an actuation surface and a door; a stepper motor housed by the enclosure; a pump head and a solid pump piston structurally linking the pump head to the stepper motor; and a disposable unit accepted by the enclosure, the disposable unit including a flexible membrane attached to a rigid piece, the actuation surface of the enclosure and the disposable unit so configured and arranged that when the stepper motor turns and consequently translates the solid pump piston and the pump head towards the door, the pump head physically contacts and stretches the membrane from a relaxed position to a stretched position, and when the stepper motor turns and consequently translates the solid pump piston and the pump head away from the door, the membrane follows the pump head and transitions from the stretched position to the relaxed position.Type: ApplicationFiled: August 9, 2013Publication date: December 5, 2013Applicants: Baxter Healthcare S.A., Baxter International Inc.Inventors: Andrea (Krensky) Britton, Donald Busby, Eric Callahan, Robert Childers, Peter Hopping, Seyed Khorashahi, William Reese, Randall Sharo, Debra Toczko, Li Yue
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Patent number: 8597231Abstract: A peritoneal dialysis machine includes: (i) a housing; (ii) an actuator carried by the housing so as to be able to interact with a peritoneal dialysis fluid carrying disposable; (iii) at least one heating element carried by the housing; (iv) a heater pan providing an upper surface of the housing, the heater pan cooperating with the at least one heater element to provide heat to a container of peritoneal dialysis fluid placed onto the heater pan, the container being part of or in communication with the peritoneal dialysis fluid carrying disposable; and (iv) a weight sensor cooperating with the heater pan to sense the weight of the peritoneal dialysis fluid located within the container.Type: GrantFiled: July 16, 2012Date of Patent: December 3, 2013Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Robert Childers, Scott Keeling, Li Pan
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Patent number: 8597229Abstract: Automated peritoneal dialysis (APD) cycler systems and methods are disclosed. The APD cycler can include a heater tray with load cells configured to measure the weight of fluid contained within a heater bag and/or a drain bag. The load cells can be toggleable between enabled and disabled configurations. The APD cycler can include a pressure-based volume measurement system, which can be used to confirm measurements made by the load cells. In some embodiments, the APD cycler can have algorithms for tracking an estimated patient volume to prevent overfilling the patient.Type: GrantFiled: December 20, 2010Date of Patent: December 3, 2013Assignee: VR Medical Technology, LLCInventor: Li Pan
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Patent number: 8597230Abstract: A dialysis system is disclosed including an autoconnection mechanism. The autoconnection mechanism in an embodiment is configured such that (i) a tip protector remover is translated in a first direction towards a plurality of supply line connectors, (ii) the tip protector remover is locked to each of a plurality of supply line tip protectors connected to the plurality of supply line connectors, (iii) the tip protector remover is translated in a second direction away from the plurality of supply line connectors to remove the plurality of supply line tip protectors from the supply line connectors, the tip protector remover is translated in a third direction different from the first and second directions, and (v) solution line connectors are translated towards the supply line connectors to connect each of the solution line connectors to one of the supply line connectors.Type: GrantFiled: December 1, 2011Date of Patent: December 3, 2013Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Robert W. Childers, Kurt Holmquist, Peter A. Hopping
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Publication number: 20130317420Abstract: The present invention relates to the field of a device and a method for entering user information into medical devices. It is based on the problem of supporting the work of the attending medical personnel in the operation of medical devices and to ensure that unsuitable settings are not made inadvertently or accidentally for the concrete treatment situation in the operation of such medical devices. For this purpose a method and a device are proposed in which a second parameter value characterizing the medical device, entered into an input device is verified and depending on this verification it is ordered that the first or second parameter value or neither the first nor the second parameter value can be or is accepted into a control unit which controls the machine.Type: ApplicationFiled: May 10, 2013Publication date: November 28, 2013Applicant: Fresenius Medical Care Deutschland GmbHInventor: Fresenius Medical Care Deutschland GmbH