Patents by Inventor Dennis M. Treu

Dennis M. Treu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Peritoneal Dialysis Systems, Devices, and Methods
    Publication number: 20170182237
    Abstract: An automated peritoneal dialysis system provides various features including prescription-driven dialysis fluid preparation, an integrated disposable fluid circuit, and sensor capabilities that allow accurate filing and draining control with high safety margins. Features include a peritoneal fluid circuit with a pressure sensor at either end and methods and devices for using the pressure signals. Other features and embodiments are disclosed.
    Type: Application
    Filed: January 7, 2017
    Publication date: June 29, 2017
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, James M. BRUGGER, Dennis M. TREU, Mark T. WYETH
  • Pressure Measurement Devices, Methods, And Systems
    Publication number: 20170028119
    Abstract: A pressure measurement system for use in blood circuits comprised of a pressure sensing pod and a force measurement device. The pressure sensing pod can include a flexible, moveable, fluid-impermeable diaphragm and can be formed via either a one-shot or a two-shot molding process. A mechanical engagement member of the force measurement device engages with a mechanical engagement feature of the diaphragm, and the engagement member is operative to move in concert with movement of the engagement feature of the diaphragm based on pressure variations with the pressure sensing pod. The force measurement device generates and outputs to a processor a signal based on detected force associated with movement of the engagement member.
    Type: Application
    Filed: July 26, 2016
    Publication date: February 2, 2017
    Applicant: NxStage Medical, Inc.
    Inventors: James M. Brugger, Dennis M. Treu, Jeffrey H. Burbank, Scott W. Newell, William J. Schnell, Kenneth E. Buckler
  • Pressure measurement devices, methods, and systems
    Patent number: 9551625
    Abstract: A pressure measurement system for use in blood circuits comprised of a pressure sensing pod and a force measurement device. The pressure sensing pod can include a flexible, moveable, fluid-impermeable diaphragm and can be formed via either a one-shot or a two-shot molding process. A mechanical engagement member of the force measurement device engages with a mechanical engagement feature of the diaphragm, and the engagement member is operative to move in concert with movement of the engagement feature of the diaphragm based on pressure variations with the pressure sensing pod. The force measurement device generates and outputs to a processor a signal based on detected force associated with movement of the engagement member.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: January 24, 2017
    Assignee: 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: 20160303305
    Abstract: Systems, methods, and devices for preparation of water for various uses including blood treatment are described. In embodiments, fluid is passed through a first filtration step which is effective for creating purified water and a pair of ultrafilters placed at the outlet. The ultrafilters are separated by an intervening flow path to prevent grow-through from the outlet end upstream. In embodiments, a recirculation path with an air removing filter helps to eliminate air from the ultimate product water.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Christopher S. MCDOWELL, Goetz FRIEDERICHS
  • Safety Features for Medical Devices Requiring Assistance and Supervision
    Publication number: 20160306938
    Abstract: An automatic locking system for a medical treatment device helps to ensure that an assistant is present during treatment of a patient. Among the features disclosed biometric authentication to verify that a trained assistant is present, a presence detector to ensure the assistant is continuously present during treatment, and warning and recovery processes that allow intermittent lapses in the continuous presence of the assistant.
    Type: Application
    Filed: June 22, 2016
    Publication date: October 20, 2016
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, James M. BRUGGER
  • Filtration system for preparation of fluids for medical applications
    Patent number: 9388059
    Abstract: Systems, methods, and devices for preparation of water for various uses including blood treatment are described. In embodiments, fluid is passed through a first filtration step which is effective for creating purified water and a pair of ultrafilters placed at the outlet. The ultrafilters are separated by an intervening flow path to prevent grow-through from the outlet end upstream. In embodiments, a recirculation path with an air removing filter helps to eliminate air from the ultimate product water.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: July 12, 2016
    Assignee: NXSTAGE MEDICAL, INC.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Christopher S. McDowell, Goetz Friederichs
  • Safety features for medical devices requiring assistance and supervision
    Patent number: 9375527
    Abstract: An automatic locking system for a medical treatment device helps to ensure that an assistant is present during treatment of a patient. Among the features disclosed biometric authentication to verify that a trained assistant is present, a presence detector to ensure the assistant is continuously present during treatment, and warning and recovery processes that allow intermittent lapses in the continuous presence of the assistant.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: June 28, 2016
    Assignee: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, James M. Brugger
  • SINGLE PASS DIALYSIS COMBINED WITH MULTIPLE PASS ALBUMIN DIALYSIS
    Publication number: 20160022897
    Abstract: Methods, systems, and devices are disclosed, embodiments of which provide single pass dialysis to remove water and uremic toxins is performed simultaneously with the albumin dialysis therapy by passing the albumin solution through a dialysis filter which dialyses it before the solution is returned to the cycler. In embodiments, the single pass dialysis stage is upstream of the albumin filtering stage.
    Type: Application
    Filed: March 13, 2014
    Publication date: January 28, 2016
    Inventors: William K. WEIGEL, Joseph E. TURK, Jan STANGE, Dennis M. TREU
  • WATER TREATMENT SYSTEMS, DEVICES, AND METHODS FOR FLUID PREPARATION
    Publication number: 20150374895
    Abstract: A water purification component, which may be integrated in a medicament production plant and/or a blood treatment system, removes chloramine and other chlorine compounds and deionizes water. The deionization is selected to be effective for providing product water whose resistivity is sufficiently high to allow chloramine to be detected in the product water if the chloramine removal filtration fails. This allows a chloramine removal filter to be changed based on a predicted exhaustion schedule with the safety of automatic chloramine breakthrough provided.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 31, 2015
    Inventors: Goetz FRIEDERICHS, Dennis M. TREU, Jeffrey H. BURBANK, Yuriy N. TATASHIN
  • SAFETY FEATURES FOR MEDICAL DEVICES REQUIRING ASSISTANCE AND SUPERVISION
    Publication number: 20150209501
    Abstract: An automatic locking system for a medical treatment device helps to ensure that an assistant is present during treatment of a patient. Among the features disclosed biometric authentication to verify that a trained assistant is present, a presence detector to ensure the assistant is continuously present during treatment, and warning and recovery processes that allow intermittent lapses in the continuous presence of the assistant.
    Type: Application
    Filed: April 9, 2015
    Publication date: July 30, 2015
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, James M. BRUGGER
  • Safety features for medical devices requiring assistance and supervision
    Patent number: 9024746
    Abstract: An automatic locking system for a medical treatment device helps to ensure that an assistant is present during treatment of a patient. Among the features disclosed biometric authentication to verify that a trained assistant is present, a presence detector to ensure the assistant is continuously present during treatment, and warning and recovery processes that allow intermittent lapses in the continuous presence of the assistant.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 5, 2015
    Assignee: Nxstage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, James M. Brugger
  • PERITONEAL DIALYSIS SYSTEMS, DEVICES, AND METHODS
    Publication number: 20150005699
    Abstract: An automated peritoneal dialysis system provides various features including prescription-driven dialysis fluid preparation, an integrated disposable fluid circuit, and sensor capabilities that allow accurate filing and draining control with high safety margins. Features include a peritoneal fluid circuit with a pressure sensor at either end and methods and devices for using the pressure signals. Other features and embodiments are disclosed.
    Type: Application
    Filed: September 23, 2012
    Publication date: January 1, 2015
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, James M. Brugger, Dennis M. Treu, Mark T. Wyeth
  • System and method for identifying and pairing devices
    Patent number: 8909613
    Abstract: A computer system and method for identifying and pairing devices. The system includes a plurality of remote user interface computers, each having a display device and a user input device and each connected to a first network via a first respective data communication link. The system also includes a plurality of medical devices each having a medical device user interface and a second data communication link adapted to exchange data with the remote user interface computers. The system also includes a database adapted to communicate with the remote user interface computers via a connection to the first network or via a direct connection to one of the remote user interface computers, the database being adapted to store patient medical information including a treatment prescription that includes use of one of the medical devices.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: December 9, 2014
    Assignee: NxStage Medical, Inc.
    Inventors: Dennis M. Treu, Kevin Albiston
  • MEDICAL DEVICE LEAK SENSING DEVICES, METHODS, AND SYSTEMS
    Publication number: 20140319035
    Abstract: Features for protecting against leaks in a fluid circuit are disclosed. In a first embodiment, a fluid circuit is housed by another fluid circuit that is configured to capture and convey leaks to leak detector. In a second embodiment, a first indicator of a leak is used to trigger confirmation by blood flow reversal and air detection in the blood circuit.
    Type: Application
    Filed: August 15, 2012
    Publication date: October 30, 2014
    Applicant: NXSTAGE MEDICAL, INC.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, James M. Brugger, Daniel Joseph Rubery, JR.
  • METHODS, DEVICES, AND SYSTEMS FOR COUPLING FLUID LINES
    Publication number: 20140191501
    Abstract: The disclosed subject matter includes embodiments of fluid couplings that prevent or discourage misconnection of fluid lines. A coupling device includes multiple male and female connectors that are joined to a common line. The coupling device is mated to a matching coupling device only when all the multiple male and female connectors are property joined. If any of the connectors is not property mated to a corresponding one, the coupling will leak. The coupling devices are made unique by providing an arrangement the connectors, number of connectors, shape of connectors or arrangement of interfering connector parts that ensure that any attempt to improperly couple two fluid lines will result in the incomplete mating of one or more of the connectors and thereby cause leakage of the fluid, failure of the coupling to engage, or otherwise cause the attempt to connect to fail.
    Type: Application
    Filed: June 8, 2012
    Publication date: July 10, 2014
    Applicant: NXSTAGE MEDICAL, INC.
    Inventors: James M. Brugger, Dennis M. Treu, David S. Utterberg
  • Filtration system for preparation of fluids for medical applications
    Patent number: 8679348
    Abstract: Systems, methods, and devices for preparation of water for various uses including blood treatment are described. In embodiments, fluid is passed either by pump or passively by gravity feed, through various filtration elements from a fluid source to a treatment fluid container. The latter forms a batch that may be used during treatment. The advantage of forming the batch before treatment is that the rate of filtering needn't match the rate of consumption during treatment which provides multiple benefits and liabilities to overcome, as discussed herein. Mechanisms for preparing pure water for infusion or medicaments are described such as elimination of chlorine and colloidal aluminum. Also various control mechanisms to help avoid contamination are describe.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: March 25, 2014
    Assignee: Nxstage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Brian C. Green, Dennis M. Treu, Christopher S. McDowell, Goetz Friederichs
  • PRESSURE MEASUREMENT DEVICES, METHODS, AND SYSTEMS
    Publication number: 20140076058
    Abstract: A pressure measurement system for use in blood circuits comprised of a pressure sensing pod and a force measurement device. The pressure sensing pod can include a flexible, moveable, fluid-impermeable diaphragm and can be formed via either a one-shot or a two-shot molding process. A mechanical engagement member of the force measurement device engages with a mechanical engagement feature of the diaphragm, and the engagement member is operative to move in concert with movement of the engagement feature of the diaphragm based on pressure variations with the pressure sensing pod. The force measurement device generates and outputs to a processor a signal based on detected force associated with movement of the engagement member.
    Type: Application
    Filed: May 31, 2012
    Publication date: March 20, 2014
    Applicant: NxStage Medical, Inc.
    Inventors: James M. Brugger, Dennis M. Treu, Jeffrey H. Burbank, Scott W. Newell, William J. Schnell, Kenneth E. Buckler
  • PERITONEAL DIALYSIS SYSTEMS, DEVICES, AND METHODS
    Publication number: 20140018727
    Abstract: An automated peritoneal dialysis system provides various features including prescription-driven dialysis fluid preparation, an integrated disposable fluid circuit, and sensor capabilities that allow accurate filing and draining control with high safety margins. Features include a peritoneal fluid circuit with a pressure sensor at either end and methods and devices for using the pressure signals. Other features and embodiments are disclosed.
    Type: Application
    Filed: March 23, 2012
    Publication date: January 16, 2014
    Applicant: NXSTAGE MEDICAL, INC.
    Inventors: Jeffrey H. Burbank, James M. Brugger, Dennis M. Treu, Mark T. Wyeth
  • FILTRATION SYSTEM FOR PREPARATION OF FLUIDS FOR MEDICAL APPLICATIONS
    Publication number: 20130327691
    Abstract: Systems, methods, and devices for preparation of water for various uses including blood treatment are described. In embodiments, fluid is passed through a first filtration step which is effective for creating purified water and a pair of ultrafilters placed at the outlet. The ultrafilters are separated by an intervening flow path to prevent grow-through from the outlet end upstream. In embodiments, a recirculation path with an air removing filter helps to eliminate air from the ultimate product water.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 12, 2013
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. BURBANK, Brian C. GREEN, Dennis M. TREU, Christopher S. MCDOWELL, Goetz FRIEDERICHS
  • Filtration system for preparation of fluids for medical applications
    Patent number: 8545428
    Abstract: Systems, methods, and devices for preparation of water for various uses including blood treatment are described. In embodiments, fluid is passed either by pump or passively by gravity feed, through various filtration elements from a fluid source to a treatment fluid container. The latter forms a batch that may be used during treatment. The advantage of forming the batch before treatment is that the rate of filtering needn't match the rate of consumption during treatment which provides multiple benefits and liabilities to overcome, as discussed herein. Mechanisms for preparing pure water for infusion or medicaments are described such as elimination of chlorine and colloidal aluminum. Also various control mechanisms to help avoid contamination are describe.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: October 1, 2013
    Assignee: Nxstage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Brian C. Green, Dennis M. Treu, Christopher S. McDowell, Goetz Friederichs