Peritoneal Dialysis Patents (Class 604/29)
  • Publication number: 20140194809
    Abstract: 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: Application
    Filed: January 10, 2013
    Publication date: July 10, 2014
    Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.
    Inventors: Kulwinder S. Plahey, Sean Farrell
  • Publication number: 20140188040
    Abstract: 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: Application
    Filed: March 6, 2014
    Publication date: July 3, 2014
    Applicant: Baxter International Inc.
    Inventors: Donald A. Busby, Peter A. Hopping, Robert W. Childers, Richard E. Kienman, Ian Richardson
  • Patent number: 8764702
    Abstract: 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: Grant
    Filed: July 5, 2007
    Date of Patent: July 1, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert W. Childers, Peter A. Hopping
  • Publication number: 20140180200
    Abstract: 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: Application
    Filed: February 13, 2014
    Publication date: June 26, 2014
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Frank L. Hedmann, Sven Sebesta, Ulrich Wernicke
  • Patent number: 8758288
    Abstract: 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: Grant
    Filed: January 24, 2011
    Date of Patent: June 24, 2014
    Assignee: Fenwal, Inc.
    Inventors: Salvatore Manzella, Jr., Timothy Getschman
  • Patent number: 8740836
    Abstract: 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: Grant
    Filed: December 4, 2013
    Date of Patent: June 3, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert W. Childers, Brian Lauman
  • Patent number: 8740837
    Abstract: 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: Grant
    Filed: December 4, 2013
    Date of Patent: June 3, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert W. Childers, Brian Lauman
  • Patent number: 8731726
    Abstract: 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: Grant
    Filed: December 14, 2010
    Date of Patent: May 20, 2014
    Assignee: DEKA Products Limited Partnership
    Inventors: Larry B. Gray, Robert J. Bryant
  • Patent number: 8728023
    Abstract: 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: Grant
    Filed: January 25, 2008
    Date of Patent: May 20, 2014
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Frank J. Landherr, Jay M. Lan
  • Patent number: 8715235
    Abstract: 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: Grant
    Filed: July 5, 2007
    Date of Patent: May 6, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert W. Childers, Bruce E. Huitt
  • Patent number: 8715221
    Abstract: 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: Grant
    Filed: March 8, 2006
    Date of Patent: May 6, 2014
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Conor Curtin, Benjamin J. Lipps, Norma J. Ofsthun, Harold F. Sandford
  • Publication number: 20140121590
    Abstract: 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: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: Sequana Medical AG
    Inventor: Thomas DEGEN
  • Patent number: 8708950
    Abstract: 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: Grant
    Filed: July 7, 2011
    Date of Patent: April 29, 2014
    Assignee: DEKA Products Limited Partnership
    Inventors: Jacob W. Scarpaci, Simon C. Helmore, Eric J. VanWyk, Matthew J. Finch
  • Patent number: 8702985
    Abstract: 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: Grant
    Filed: January 26, 2011
    Date of Patent: April 22, 2014
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Sven Sebesta, Ulrich Wernicke
  • Patent number: 8696613
    Abstract: 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: Grant
    Filed: November 2, 2011
    Date of Patent: April 15, 2014
    Assignee: Debiotech S.A.
    Inventors: Diego Mastalli, Alfio Quarteroni, Paolo Zunino
  • Patent number: 8696614
    Abstract: 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: Grant
    Filed: November 11, 2011
    Date of Patent: April 15, 2014
    Assignee: C. R. Bard, Inc.
    Inventors: Colin S. Gregersen, Ryan T. Moehle, Ryan C. Patterson, William D. Woodley, Mark E. Walton
  • Publication number: 20140094740
    Abstract: 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: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Patrick Jong Lee, Serhan Acikgoz, Yuanpang Samuel Ding
  • Patent number: 8684971
    Abstract: 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: Grant
    Filed: January 30, 2013
    Date of Patent: April 1, 2014
    Assignee: Baxter International Inc.
    Inventors: Donald D. Busby, Peter A. Hopping, Robert W. Childers, Rick E. Kienman, Ian Richardson
  • Publication number: 20140088493
    Abstract: 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: Application
    Filed: December 2, 2013
    Publication date: March 27, 2014
    Applicant: VR MEDICAL TECHNOLOGY, LLC
    Inventor: LI PAN
  • Patent number: 8679054
    Abstract: 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: Grant
    Filed: June 20, 2012
    Date of Patent: March 25, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert W. Childers, Brian Lauman
  • Publication number: 20140058316
    Abstract: 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: Application
    Filed: August 8, 2013
    Publication date: February 27, 2014
    Inventors: Anmol Gupta, Bharat K. Gupta, Mohit Gupta
  • Publication number: 20140058315
    Abstract: 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: Application
    Filed: August 23, 2012
    Publication date: February 27, 2014
    Inventors: Anmol Gupta, Mohit Gupta, Bharat K. Gupta
  • Patent number: 8657801
    Abstract: 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: Grant
    Filed: March 14, 2008
    Date of Patent: February 25, 2014
    Assignee: Coloplast A/S
    Inventors: Jakob Ilskov Nielsen, Jens Peter Bredholt, Alister David Morton, Klaus Sommer Ipsen, Henrik Jeppesen
  • Publication number: 20140046248
    Abstract: 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: Application
    Filed: June 5, 2012
    Publication date: February 13, 2014
    Applicant: Sis-ter S.p.A.
    Inventors: Massimo Fini, Reinhold Reiter
  • Patent number: 8641659
    Abstract: 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: Grant
    Filed: February 17, 2012
    Date of Patent: February 4, 2014
    Assignee: Medtronic, Inc.
    Inventors: Orhan Soykan, Carl Schu, Kimberly Chaffin
  • Patent number: 8644692
    Abstract: 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: Grant
    Filed: March 19, 2012
    Date of Patent: February 4, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: John Bedingfield, Brian Lauman
  • Publication number: 20140021111
    Abstract: 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: Application
    Filed: September 26, 2013
    Publication date: January 23, 2014
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Rodolfo G. Roger, Michael E. Hogard, Thomas D. Kelly
  • Publication number: 20140018728
    Abstract: 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: Application
    Filed: December 16, 2011
    Publication date: January 16, 2014
    Applicant: Fresenius Medical Care Holdings, Inc.
    Inventors: Kulwinder S. Plahey, Robert Matthew Ohline, Sean Farrell, Anthony Thomas Ortega
  • Publication number: 20130345623
    Abstract: 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: Application
    Filed: June 24, 2013
    Publication date: December 26, 2013
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Pascal KOPPERSCHMIDT, Carsten MUELLER, Matthias PFEUFFER
  • Publication number: 20130345622
    Abstract: 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: Application
    Filed: August 28, 2013
    Publication date: December 26, 2013
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Loren Lundtveit, Melissa Schubert, James Pappis, Don A. Smith
  • Publication number: 20130345621
    Abstract: 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: Application
    Filed: August 26, 2013
    Publication date: December 26, 2013
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Gino Cicchello, Christian Bernard, Robert W. Childers, Anthony Simiele
  • Publication number: 20130331774
    Abstract: 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: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.
    Inventors: Sean Farrell, Joseph Michael Fallon, Kulwinder S. Plahey, Michael James Beiriger
  • Publication number: 20130331775
    Abstract: 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: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Applicants: Baxter Healthcare S.A, Baxter Healthcare Inc
    Inventors: Andrea Britton, Donald Busby, Eric Callahan, Robert Childers, Peter Hopping, Seyed Khorashahi, William Reese, Randall Sharo, Debra Toczko, Li Yue
  • Publication number: 20130324915
    Abstract: 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: Application
    Filed: August 9, 2013
    Publication date: December 5, 2013
    Applicants: 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
  • Patent number: 8597231
    Abstract: 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: Grant
    Filed: July 16, 2012
    Date of Patent: December 3, 2013
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert Childers, Scott Keeling, Li Pan
  • Patent number: 8597229
    Abstract: 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: Grant
    Filed: December 20, 2010
    Date of Patent: December 3, 2013
    Assignee: VR Medical Technology, LLC
    Inventor: Li Pan
  • Patent number: 8597230
    Abstract: 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: Grant
    Filed: December 1, 2011
    Date of Patent: December 3, 2013
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Robert W. Childers, Kurt Holmquist, Peter A. Hopping
  • Publication number: 20130317420
    Abstract: 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: Application
    Filed: May 10, 2013
    Publication date: November 28, 2013
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventor: Fresenius Medical Care Deutschland GmbH
  • Publication number: 20130310735
    Abstract: In an embodiment, an automated peritoneal dialysis (“APD”) machine includes at least one pump, a logic implementer storing a plurality of therapy prescriptions by which to operate the at least one pump, each therapy prescription pre-approved for a particular patient, and an input device operating with the logic implementer to allow the patient to select one of the therapy prescriptions for a particular therapy. In another embodiment, the input device operating with the logic implementer allows a doctor/clinician to select or approve one of the therapy prescriptions to be run on the APD machine. In a further embodiment, the logic implementer is programmed to select or suggest one of the therapy prescriptions to be run on the APD machine.
    Type: Application
    Filed: July 22, 2013
    Publication date: November 21, 2013
    Applicants: Baxter Healthcare S.A., Baxter International Inc.
    Inventors: Anping Yu, Robert W. Childers, Borut Cizman
  • Publication number: 20130310726
    Abstract: A home medical device system includes a plurality of home therapy machines that perform a home therapy on a patient; a connectivity server; a system hub coupled to the home therapy machines through the connectivity server; a web portal configured to access the system hub; a plurality of clinics connected to the system hub via the web portal; and a website accessible via the web portal, the website including a patient portion available to patients using the plurality of home therapy machines, the website further including a clinician portion that enables the clinics to manage the home therapy machines.
    Type: Application
    Filed: March 14, 2013
    Publication date: November 21, 2013
    Applicants: BAXTER HEALTHCARE S.A., BAXTER INTERNATIONAL INC.
    Inventors: Joshua James Miller, Derek Wiebenson, Douglas L. Wilkerson, Neil Tiwari, Timothy G. Robinson, Marc Steven Minkus, Matthew R. Muller, Anders J. Wellings, Kathryn Louise Hansbro, Borut Cizman, Brian S. Kunzeman, Robin D. Cooper, Timothy L. Kudelka, Angelo A. Sarto, Steve Joseph Lindo, Jostein Baustad, Duston Mounts, Shafali Hill
  • Publication number: 20130310736
    Abstract: A method that includes conveying overheated dialysate through a cassette in a manner to reduce the temperature of the overheated dialysate, and a dialysis system including a control unit configured to cause overheated dialysate to be conveyed through a cassette in a manner to reduce the temperature of the overheated dialysate.
    Type: Application
    Filed: July 25, 2013
    Publication date: November 21, 2013
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Frank L. Hedmann, Stephan Klatte
  • Patent number: 8585634
    Abstract: 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, a liquid distribution system, a liquid supply means, and patient conduit. The liquid distribution system comprises two distinct hub chambers. The first hub chamber includes at least one liquid supply port with a dedicated valve means, one patient port with dedicated valve means, and one pump inlet. The second hub chamber includes at least one patient port or warmer port with dedicated valve means and one pump outlet. The system further comprises control means arranged to close the patient port of the first hub chamber when the liquid supply port is open, and vice versa.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: November 19, 2013
    Assignee: Debiotech S.A.
    Inventors: Frédéric Neftel, Florent Junod, Didier Vecten
  • Patent number: 8585635
    Abstract: An artificial liver system for treating liver failure includes a reservoir to provide albumin-containing dialysis fluid to the patient's peritoneum, an implantable device including a pump to pump the fluid from the peritoneum to the bladder via respective catheters, control circuitry, battery and transceiver; a charging and communication system configured to periodically charge the battery and communicate with the implantable device to retrieve data reflective of the patient's health; and monitoring and control software, suitable for use with conventional personal computers, for configuring and controlling operation of the implantable device and charging and communication system. The monitoring and control software allows a treating physician to remotely adjust the volume, time, and frequency with which fluid is pumped from the peritoneal cavity to the bladder based on the data reflective of the patient's health.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: November 19, 2013
    Assignee: Sequana Medical AG
    Inventors: Thomas Werner Degen, Daniel Thomas Thommen, Noel L. Johnson
  • Patent number: 8580112
    Abstract: This disclosure generally relates to dialysis systems and related methods. In one aspect of the invention, a dialysis system includes a device configured so that a medical fluid can pass therethrough, and the device is adapted to remove one or more substances from the medical fluid as the medical fluid passes through the device. The dialysis system can also include a sodium control system adapted to alter a sodium concentration of the medical fluid.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: November 12, 2013
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Palmer David Updyke, Harold Frederick Sandford, Benjamin Joseph Lipps, Douglas Mark Zatezalo, Michael James Beiriger, James Matthew Mullner
  • Patent number: 8573228
    Abstract: A system includes (i) a needle for insertion into a port of an implantable infusion device, and (ii) a receiver apparatus having a port location signal receiver module capable of receiving a signal from the implantable infusion device regarding spatial orientation of the port. The system further includes a processor operably coupled to the receiver apparatus and capable of determining the orientation of the needle relative to the port based on the received signal. The system also includes a display operably coupled to the processor. The processor is configured to cause the display to graphically render trajectory of the needle relative to the port. The port is graphically rendered as a target structure having a reference area. The needle is graphically rendered as an object moveable relative to the target structure. Occupation of the reference area by the object indicates trajectory alignment of the port and the needle.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: November 5, 2013
    Assignee: Medtronic, Inc.
    Inventor: Scott L. Kalpin
  • Patent number: 8568595
    Abstract: A method for determining or predicting the adequacy parameters that will be achieved at the end of a kidney substitution treatment during said kidney substitution treatment wherein the kidney substitution treatment is provided by a machine, which has an extracorporeal blood system pumping the patient blood through the blood chamber of a dialyzer, wherein the dialyzing fluid collects the waste products from the patient after flowing through the dialyzing fluid chamber of the dialyzer and wherein a device able to measure a adequacy parameter is coupled with the kidney substitution treatment machine and wherein the slope of a preferable linear guideline for the adequacy parameter is compared to the slope of the delivered adequacy parameter and if the slope of both are equal a linearization is performed to determine or predict the adequacy parameter at the end of the kidney substitution treatment.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: October 29, 2013
    Assignee: B. Braun Avitum AG
    Inventor: Alex Castellarnau
  • Publication number: 20130281921
    Abstract: Peritoneal dialysis systems and methods are provided by the present disclosure. In a general embodiment, a peritoneal dialysis system includes a peritoneal dialysis fluid supply, a supply line in fluid communication with the peritoneal dialysis fluid supply and terminating at a supply connector, a patient connector in fluid communication with a patient's indwelling catheter, a device configured to connect the supply connector to the patient connector without a user having to physically contact the supply connector or the patient connector, and a housing placeable around the connecting device and including a plurality of ultraviolet (“UV”) light-emitting diodes (“LED's”) positioned to direct energy towards at least one of the supply connector and the patient connector.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 24, 2013
    Inventors: Katsuyoshi Sobue, Takeshi Nakajima, Atsushi Matsuzaki, Minoru Okuda
  • Publication number: 20130274644
    Abstract: Prior to each treatment session for an individual patient, a machine controller in a dialysis machine obtains from a logic device a set of current control settings of the machine-related parameters to be applied in the treatment session. In generating the control settings, the logic device obtains a set of therapeutic targets comprising a target value that represents part of a desired status of the patient after the treatment session, in terms of one or more physiological parameters for the patient. The logic device also obtains status data that represents the current status of the patient prior to the treatment session, and computes the set of current control settings of the machine-related parameters, as a function of the set of therapeutic targets and the status data and at least partly based on a predictive model, which estimates the physiological response of the patient to the machine-related parameters during the treatment session.
    Type: Application
    Filed: September 20, 2011
    Publication date: October 17, 2013
    Applicant: Gambro Lundia AB
    Inventor: Thomas Hertz
  • Patent number: 8558964
    Abstract: A medical machine includes: an enclosure defining an opening, at least a portion of the enclosure being electrically conductive and acting as a first capacitor plate; a medical device component located inside the enclosure; a window placed adjacent to the opening; a video display with an at least partially conductive case acting as a second capacitor plate; and a dielectric member placed between the first and second capacitor plates, the plates and dielectric member forming a capacitor configured to prevent leakage of electromagnetic energy from the enclosure.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: October 15, 2013
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventor: John Bedingfield
  • Publication number: 20130267883
    Abstract: The present invention relates to a method for treating the blood of a patient, comprising removing water from the blood of patients at a settable water removal rate, wherein the position of the patient is determined and the water removal rate is set, controlled, and/or regulated depending on the determined position of the patient. The invention further relates to an apparatus for treating the blood of a patient, comprising a blood treatment device for removing water from the blood of the patient at a settable water removal rate, wherein position-determining means for determining the position of the patient, wherein the water removal rate is settable, regulatable, and/or controllable depending on the determined position of the patient.
    Type: Application
    Filed: September 14, 2012
    Publication date: October 10, 2013
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventor: Guillermo MEDRANO