Patents Assigned to NxStage Medical, Inc.
  • Flow Balancing Devices, Methods, and Systems
    Publication number: 20200061281
    Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.
    Type: Application
    Filed: July 18, 2017
    Publication date: February 27, 2020
    Applicant: NxStage Medical, Inc.
    Inventors: David DESOUZA, Daniel J. RUBERY, Jr., Dennis M. TREU, Mark T. WYETH, Jerome JAMES, Garrett D. CASEY, James M. BRUGGER, William J. SCHNELL, Jeffrey H. BURBANK, Goetz FRIEDERICHS
  • Flow Reversing Device
    Publication number: 20200030518
    Abstract: An external support that routes the tubing of a reversing valve in such a manner that connection tubes extend from one end of the device and the treatment device tubes extend from the opposite end. The external support may provide guides that hold the tubing extending from the supported flat rotary switch type of valve so as to keep them from being pinch or kinked thereby ensuring free flow of blood.
    Type: Application
    Filed: March 26, 2018
    Publication date: January 30, 2020
    Applicant: NxStage Medical, Inc.
    Inventors: James M. BRUGGER, William J. SCHNELL, Kenneth E. BUCKLER
  • Medicament Preparation and Treatment Devices, Methods, and Systems
    Publication number: 20200009308
    Abstract: A medicament preparation system, according to an embodiment, includes a water purification module and a medicament proportioning module. The system is configured to allow convenient and safe use in a home environment or a critical care environment as well as others affording safety, reliability, and a compact form factor.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Applicant: NxStage Medical, Inc.
    Inventors: Goetz FRIEDERICHS, William K. WEIGEL, Dennis M. TREU, Jeffrey H. BURBANK, James M. BRUGGER, Keith David J. WHEELER, Scott W. NEWELL
  • Flow balancing devices, methods, and systems
    Patent number: 10525182
    Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: January 7, 2020
    Assignee: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Daniel J. Rubery, Jr., Scott W. Newell, James M. Brugger, William J. Schnell, William K. Weigel, Steve A. White, Mark T. Wyeth, Jerome James, David Desouza, Joseph E. Turk, Jr., Garrett Casey
  • Medical device leak sensing devices, methods and systems
    Patent number: 10525190
    Abstract: Features for protecting against leaks in a fluid circuit are disclosed. In an embodiment, a first indicator of a leak is used to trigger confirmation by blood flow reversal and air detection in the blood circuit. A method for performing a blood treatment includes, at blood treatment machine, pumping blood to a patient through a first blood line. Further, at a controller of the blood treatment machine, a first signal is received, indicating a probability of a leak in the first blood line. Responsively to the first signal, the controller commands a leak verification operation and receives a second signal indicating whether a leak in the first blood line is verified. Further, a leak indicating signal is generated if the second signal indicates a leak is verified.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: January 7, 2020
    Assignee: NXSTAGE MEDICAL, INC.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, James M. Brugger, Daniel Joseph Rubery, Jr.
  • Treatment Fluid Multi-Stream Blood Warmer
    Publication number: 20200000993
    Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. A blood treatment system treats blood with multiple fluids and performs fluid balancing on a patient's blood compartment. Multiple streams influence the patient temperature but only a subset of the fluids are dynamically temperature regulated. The system regulates a temperature of the flow, for example, of dialysate in order to regulate the return temperature of blood, in such a way that the temperature effect of the multiple streams is compensated.
    Type: Application
    Filed: December 14, 2017
    Publication date: January 2, 2020
    Applicant: NxStage Medical, Inc.
    Inventor: Dennis M. TREU
  • Treatment fluid devices methods and systems
    Patent number: 10518014
    Abstract: Embodiments include a consumable medical device comprises a rigid cartridge to which a film is adhered to form a fluid channel and a damper chamber. A portion of the film forming the damper chamber has a wave-like shape adapted to roll onto a tip of a damper. The damper has a plunger to minimize peristaltic pressure in the channel. The cartridge may include conductivity measurement channels. Crosstalk may be minimized by using different frequencies or time division for reading the channels. A stable dialysate concentrate containing sodium lactate may be used or generated with the system. The concentrate may be formed to higher concentration than feasible with a single component concentrate by forming two containers of concentrate, each containing a fraction of a total quantity of sodium lactate required for a predefined number of dialysis.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: December 31, 2019
    Assignee: NXSTAGE MEDICAL, INC.
    Inventors: Orlando Soto, Joseph Rausa, James M. Brugger, William J. Schnell, Goetz Friederichs, Jeffrey H. Burbank, Joseph E. Turk, Scott W. Newell, Amanda Wozniak
  • Medicament preparation and treatment devices, methods, and systems
    Patent number: 10478544
    Abstract: A medicament preparation system, according to an embodiment, includes a water purification module and a medicament proportioning module. The system is configured to allow convenient and safe use in a home environment or a critical care environment as well as others affording safety, reliability, and a compact form factor.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: November 19, 2019
    Assignee: NXSTAGE MEDICAL, INC.
    Inventors: Goetz Friederichs, William Weigel, Dennis M. Treu, Jeffrey H. Burbank, James M. Brugger, Keith J. Wheeler, Scott W. Newell
  • Fluid Conveyance Safety Devices, Methods, and Systems
    Publication number: 20190344007
    Abstract: A vascular access device may include a blood circuit having an arterial blood line and a venous blood line. The venous blood line is connected to a first access needle and the arterial blood line is connected to a second access needle. The venous blood line is connected to an access component affixed to the second access needle and configured such that when the second access needle is used to infuse blood into a patient, the access component is positioned to withdraw blood and convey it into the venous line. The withdrawn blood may also be conveyed to an air detector to detect withdrawal of the second access needle.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Joseph E. TURK, JR., Jeffrey H. BURBANK, James M. BRUGGER
  • Safe Cannulation Devices, Methods, and Systems
    Publication number: 20190336699
    Abstract: Methods and devices for use and handling of intravenous and/or subcutaneous needles, and, more particularly, to safety devices for shielding needles or other sharp articles or devices that present a safety hazard are disclosed. In an embodiment, a needle protective sheath can include a top wall, a bottom wall, and a pair of side walls joining the top and bottom walls. A finger shield extends from the top wall at a front opening of the sheath and is attached to the top wall by a hinge portion. The finger shield can be rotated about the hinge portion to block the front opening so as to secure a needle within the sheath.
    Type: Application
    Filed: June 13, 2019
    Publication date: November 7, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Matthew ONKEN, Steven BELLETTI
  • Medicament preparation and treatment devices, methods, and systems
    Patent number: 10441700
    Abstract: A medicament preparation system, according to an embodiment, includes a water purification module and a medicament proportioning module. The system is configured to allow convenient and safe use in a home environment or a critical care environment as well as others affording safety, reliability, and a compact form factor.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: October 15, 2019
    Assignee: NXSTAGE MEDICAL, INC.
    Inventors: Goetz Friederichs, William Weigel, Dennis M. Treu, Jeffrey H. Burbank, James M. Brugger, Keith J. Wheeler, Scott W. Newell
  • Filtration system for preparation of fluids for medical applications
    Patent number: 10420871
    Abstract: A fluid preparation system has a sealed sterilized fluid circuit with a sealed sterilized container with a conductivity sensor in communication with an interior of said container. Further, at least one sealed connector is adapted for adding fluid to said container, and at least one sealed connector is adapted for removing fluid from said container. The conductivity sensor is contained in a test line in communication with said interior and is adapted to be connected to a source of suction thereby to draw a sample of contents of said container. Furthermore, the test line may have a check valve to prevent ingress of contaminants into said container, and the sealed connector is adapted for adding fluid to said container and may have an inline sterile filter. Furthermore, the system may have a controller that controls pumping actuators.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: September 24, 2019
    Assignee: NXSTAGE MEDICAL, INC.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Goetz Friederichs, Brian C. Green, Christopher S. McDowell, James M. Brugger
  • Pressure Measurement Devices, Methods, and Systems
    Publication number: 20190277716
    Abstract: A pressure measurement pod for use in blood circuits includes a pressure sensing pod defining a chamber and having a rigid wall portion and an integral flexible wall portion forming a flexible, moveable, fluid-impermeable diaphragm with a first major side thereof facing an interior of the chamber and a second major side opposite the first major side. The second major side faces outwardly away from the chamber, and the pod has ports on sides of the chamber. The internal surfaces of the chamber and ports are shaped such that any contour following the internal surfaces to the outside of one of the ports traces only surfaces characterized by positive or neutral draft angles such that invasive mold portions may be withdrawn through the ports thereby permitting the pressure measurement pod to be molded in a single shot molding process.
    Type: Application
    Filed: May 23, 2019
    Publication date: September 12, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: James M. BRUGGER, Dennis M. TREU, Jeffrey H. BURBANK, Scott W. NEWELL, William J. SCHNELL, Kenneth E. BUCKLER
  • Filtration System for Preparation of Fluids for Medical Applications
    Publication number: 20190275226
    Abstract: A fluid preparation system has a sealed sterilized fluid circuit with a sealed sterilized container with a conductivity sensor in communication with an interior of said container. Further, at least one sealed connector is adapted for adding fluid to said container, and at least one sealed connector is adapted for removing fluid from said container. The conductivity sensor is contained in a test line in communication with said interior and is adapted to be connected to a source of suction thereby to draw a sample of contents of said container. Furthermore, the test line may have a check valve to prevent ingress of contaminants into said container, and the sealed connector is adapted for adding fluid to said container and may have an inline sterile filter. Furthermore, the system may have a controller that controls pumping actuators.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 12, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Goetz FRIEDERICHS, Brian C. GREEN, Christopher S. MCDOWELL, James M. BRUGGER
  • Fluid Preparation and Treatment Devices Methods and Systems
    Publication number: 20190262526
    Abstract: Methods, device, and systems for preparing peritoneal dialysis fluid and/or administering a peritoneal dialysis treatment are disclosed. In embodiments, peritoneal dialysis fluid is prepared at a point of use automatically using a daily sterile disposable fluid circuit and one or more long-term concentrate containers that are changed only after multiple days (e.g. weekly). The daily disposable may have concentrate containers that are initially empty and are filled from the long-term concentrate containers once per day at the beginning of a treatment.
    Type: Application
    Filed: February 28, 2019
    Publication date: August 29, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Mark T. WYETH, Gregory YANTZ, Goetz FRIEDERICHS
  • Fluid Preparation and Treatment Devices Methods and Systems
    Publication number: 20190262525
    Abstract: Methods, device, and systems for preparing peritoneal dialysis fluid and/or administering a peritoneal dialysis treatment are disclosed. In embodiments, peritoneal dialysis fluid is prepared at a point of use automatically using a daily sterile disposable fluid circuit and one or more long-term concentrate containers that are changed only after multiple days (e.g. weekly). The daily disposable may have concentrate containers that are initially empty and are filled from the long-term concentrate containers once per day at the beginning of a treatment.
    Type: Application
    Filed: February 28, 2019
    Publication date: August 29, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Mark T. WYETH, Gregory YANTZ
  • Fluid Preparation and Treatment Devices Methods and Systems
    Publication number: 20190262524
    Abstract: Methods, device, and systems for preparing peritoneal dialysis fluid and/or administering a peritoneal dialysis treatment are disclosed. In embodiments, peritoneal dialysis fluid is prepared at a point of use automatically using a daily sterile disposable fluid circuit and one or more long-term concentrate containers that are changed only after multiple days (e.g. weekly). The daily disposable may have concentrate containers that are initially empty and are filled from the long-term concentrate containers once per day at the beginning of a treatment.
    Type: Application
    Filed: February 28, 2019
    Publication date: August 29, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Mark T. WYETH, Gregory YANTZ, Robert Paul MCCARTY
  • FLUID PREPARATION AND TREATMENT DEVICES METHODS AND SYSTEMS
    Publication number: 20190262522
    Abstract: Methods, device, and systems for preparing peritoneal dialysis fluid and/or administering a peritoneal dialysis treatment are disclosed. In embodiments, peritoneal dialysis fluid is prepared at a point of use automatically using a daily sterile disposable fluid circuit and one or more long-term concentrate containers that are changed only after multiple days (e.g. weekly). The daily disposable may have concentrate containers that are initially empty and are filled from the long-term concentrate containers once per day at the beginning of a treatment.
    Type: Application
    Filed: February 28, 2019
    Publication date: August 29, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: MARK T. WYETH, Gregory YANTZ, Ciro A. de la VEGA
  • Fluid conveyance safety devices, methods, and systems
    Patent number: 10391229
    Abstract: The disclosed subject matter includes a structure and method for making a dual-lumen needle from single lumen needles to take advantage of the much higher economies of scale. Variations include two needles joined by a flow junction and one needle and a single cannula joined by a flow junction. In addition disclosed are methods of using a dual-lumen needle in a two needle access for blood treatment is disclosed in which at least venous flow is provided through a dual-lumen needle with arterial flow just sufficient to provide air infiltration detection in the event of withdrawal of the dual-lumen needle.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: August 27, 2019
    Assignee: Nxstage Medical, Inc.
    Inventors: Joseph E. Turk, Jr., Jeffrey H. Burbank, James M. Brugger
  • Fluid Circuit Priming Methods, Devices, and Systems
    Publication number: 20190247563
    Abstract: According to embodiments, priming systems, methods, and devices are disclosed which allow medical treatment devices which pump fluid to be primed with minimal operator intervention and a high level of convenience. A blood circuit with a filter fitted with one or more air vents on a non-blood compartment is attached to a treatment system and priming fluid pumped slowly through the blood circuit in a loop. The source of fluid may be elevated, or the pumping may generate pressure, such that priming fluid is forced through the membrane of the filter and out the air vent(s). In embodiments, the vents are hydrophobic which prevent fluid from being ejected, so the priming system can run without intervention.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 15, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: James M. BRUGGER, William J. SCHNELL