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).

  • Methods, devices, and systems for parallel control of infusion device
    Patent number: 8460228
    Abstract: A tubing set is disclosed including a first line having first and second ends, a bag spike at the first end configured for connection to a source of infusate, and a connector at the second end configured for connection to a blood line. The first line has a pumping portion for engagement with an infusate pump. The tubing set includes a second line having first and second ends, the first end being attached to the first line between the first line pumping portion and the first line second end and the second end being configured for connection to the first line between the first line first end and the first line pumping portion. The second line second end is configured for connection to the first line by a dual lumen spike.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: June 11, 2013
    Assignee: NxStage Medical Inc.
    Inventors: Jeffrey H. Burbank, Joseph Turk, Dennis M. Treu, R. Michael Hofmann, James M. Brugger
  • SAFETY FEATURES FOR MEDICAL DEVICES REQUIRING ASSISTANCE AND SUPERVISION
    Publication number: 20130069778
    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: September 14, 2012
    Publication date: March 21, 2013
    Inventors: Jeffrey H. BURBANK, Dennis M. TREU, James M. BRUGGER
  • FILTRATION SYSTEM FOR PREPARATION OF FLUIDS FOR MEDICAL APPLICATIONS
    Publication number: 20120325696
    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: Application
    Filed: September 5, 2012
    Publication date: December 27, 2012
    Applicant: NXSTAGE MEDICAL, INC.
    Inventors: Jeffrey H. BURBANK, Brian C. GREEN, Dennis M. TREU, Christopher S. MCDOWELL, Goetz FRIEDERICHS
  • SYSTEM AND METHOD FOR IDENTIFYING AND PAIRING DEVICES
    Publication number: 20120221634
    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: Application
    Filed: May 9, 2012
    Publication date: August 30, 2012
    Applicant: NxStage Medical, Inc.
    Inventors: Dennis M. Treu, Kevin Albiston
  • System and method for identifying and pairing devices
    Patent number: 8190651
    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: June 14, 2010
    Date of Patent: May 29, 2012
    Assignee: NxStage Medical, Inc.
    Inventors: Dennis M. Treu, Kevin Albiston
  • FILTRATION SYSTEM FOR PREPARATION OF FLUIDS FOR MEDICAL APPLICATIONS
    Publication number: 20110186521
    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: Application
    Filed: April 11, 2011
    Publication date: August 4, 2011
    Inventors: Jeffrey H. BURBANK, Brian C. GREEN, Dennis M. TREU, Christopher S. MCDOWELL, Goetz FRIEDERICHS
  • METHODS, DEVICES, AND SYSTEMS FOR PARALLEL CONTROL OF INFUSION DEVICE
    Publication number: 20110106047
    Abstract: A tubing set is disclosed that includes a first line having first and second ends, a bag spike at the first end configured for connection to a source of infusate, and a connector at the second end configured for connection to a blood line. The first line can have a pumping portion for engagement with an infusate pump. The tubing set can also include a second line having first and second ends, the second line first end being attached to the first line between the first line pumping portion and the first line second end and the second line second end being configured for connection to the first line between the first line first end and the first line pumping portion. The tubing set can further include a check valve located in the second line, the check valve having a predetermined cracking pressure of at least 200 mm Hg.
    Type: Application
    Filed: October 26, 2010
    Publication date: May 5, 2011
    Applicant: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Joseph Turk, Dennis M. Treu, R. Michael Hofmann, James M. Brugger
  • SYSTEM AND METHOD FOR IDENTIFYING AND PAIRING DEVICES
    Publication number: 20100318578
    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: Application
    Filed: June 14, 2010
    Publication date: December 16, 2010
    Applicant: NxStage Medical, Inc.
    Inventors: Dennis M. TREU, Kevin Albiston
  • Systems and methods for handling air and/or flushing fluids in a fluid circuit
    Patent number: 7790043
    Abstract: Systems and methods handle air and rinsing fluid during fluid processing. The systems and methods eliminate air from a fluid processing system prior to, during, and after use. The systems and methods provide a connector assembly for establishing fluid flow from a fluid source. The connector assembly has discrete first and second passages that prevent communication between the fluid in first passage and the fluid in the second passage. Prior to system use, the connector assembly may be utilized in a priming function to remove residual air from a fluid circuit prior to use. The connector assembly may also be utilized after use to perform a rinse-back function.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 7, 2010
    Assignee: NxStage Medical, Inc.
    Inventors: James M. Brugger, Dennis M. Treu
  • Blood treatment apparatus
    Patent number: 7780619
    Abstract: A blood processing machine has a compact configuration in which the first and second parts of the machine separate to open a gap between them. The actuators and sensors face into the gap such that when a cartridge with a fluid circuit is placed in the gap and the two parts are brought together closing the gap, the actuators and sensor engage the fluid circuit. One of the parts has an operator interface with a display that is preferably aligned with the gap in such a way that the frontal area of the machine is minimized.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: August 24, 2010
    Assignee: NxStage Medical, Inc.
    Inventors: James M. Brugger, Jeffrey H. Burbank, Dennis M Treu
  • Registration of fluid circuit components in a blood treatment device
    Patent number: 7776001
    Abstract: A first flow path is defined within a first panel that forms a part of an extracorporeal fluid circuit. A second flow path is defined within a second panel that also forms a part of the extracorporeal fluid circuit. The first and second panels are oriented in a fluid processing cartridge for mounting as an integrated unit on a fluid processing machine and for removal as an integrated unit from the fluid processing machine.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: August 17, 2010
    Assignee: NxStage Medical Inc.
    Inventors: James M. Brugger, Jeffrey H. Burbank, Dennis M. Treu
  • Functional isolation of upgradeable components to reduce risk in medical treatment devices
    Patent number: 7771379
    Abstract: A medical treatment system isolates more risk-sensitive equipment from less risk-sensitive components of a treatment device to allow upgrades to be made to the latter more easily without an concomitant increase in risk to a patient caused by upgrades. For example, the latter may serve a pure monitoring function while the former encapsulates the treatment functions thereby preventing errors from the latter from propagating into the treatment-sensitive portions of the device.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: August 10, 2010
    Assignee: NxStage Medical, Inc.
    Inventor: Dennis M. Treu
  • SYSTEMS AND METHODS FOR HANDLING AIR AND/OR FLUSHING FLUIDS IN A FLUID CIRCUIT
    Publication number: 20100022938
    Abstract: Systems and methods handle air and rinsing fluid during fluid processing. The systems and methods eliminate air from a fluid processing system prior to, during, and after use. The systems and methods provide a connector assembly for establishing fluid flow from a fluid source. The connector assembly has discrete first and second passages that prevent communication between the fluid in first passage and the fluid in the second passage. Prior to system use, the connector assembly may be utilized in a priming function to remove residual air from a fluid circuit prior to use. The connector assembly may also be utilized after use to perform a rinse-back function.
    Type: Application
    Filed: July 24, 2009
    Publication date: January 28, 2010
    Inventors: James M. Brugger, Dennis M. Treu
  • Systems and methods for handling air and/or flushing fluids in a fluid circuit
    Patent number: 7588684
    Abstract: Systems and methods handle air and rinsing fluid during fluid processing. The systems and methods eliminate air from a fluid processing system prior to, during, and after use. The systems and methods provide a connector assembly for establishing fluid flow from a fluid source. The connector assembly has discrete first and second passages that prevent communication between the fluid in first passage and the fluid in the second passage. Prior to system use, the connector assembly may be utilized in a priming function to remove residual air from a fluid circuit prior to use. The connector assembly may also be utilized after use to perform a rinse-back function.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: September 15, 2009
    Assignee: NxStage Medical, Inc.
    Inventors: James M. Brugger, Dennis M. Treu
  • SAFETY FEATURES FOR MEDICAL DEVICES REQUIRING ASSISTANCE AND SUPERVISION
    Publication number: 20090222671
    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: October 25, 2006
    Publication date: September 3, 2009
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, James M. Brugger
  • FILTRATION SYSTEM FOR PREPARATION OF FLUIDS FOR MEDICAL APPLICATIONS
    Publication number: 20090182263
    Abstract: Systems, methods, and devices for preparation of purified water and medicaments for various uses including blood treatment are described. Methods, devices, and systems for creating multiple-treatment batches are described.
    Type: Application
    Filed: April 9, 2007
    Publication date: July 16, 2009
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Goetz Freiderichs, Brian C. Green, Christopher M. McDowell, James M. Brugger
  • Filtration System for Preparation of Fluids for Medical Applications
    Publication number: 20080230450
    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. Methods and systems for creating multiple-treatment batches are described. Advantages of creating a multitreatment batch include the fact that the burden of treatment preparation can be reduced and the timing of the preparation of the batch can be independent of the treatment time. As described, there are various trade-offs and concerns with this approach which are addressed by the inventive embodiments.
    Type: Application
    Filed: January 9, 2006
    Publication date: September 25, 2008
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Gotz Friederichs, Brian C. Green, Christopher S. McDowell, James M. Brugger
  • Fluid, circuits, systems, and processes for extracorporeal blood processing
    Patent number: 7419597
    Abstract: A method for renal replacement therapy includes priming a fluid circuit and recirculating the sterile fluid during priming to permit gas to float out of the sterile fluid into a fluid reservoir. The fluid is preferably either warmed during circulation or vibrated to promote the removal of gas.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: September 2, 2008
    Assignee: Nxstage Medical Inc.
    Inventors: James M. Brugger, Jeffrey H. Burbank, Dennis M. Treu
  • BLOOD TREATMENT APPARATUS
    Publication number: 20080149551
    Abstract: A blood processing machine has a compact configuration in which the first and second parts of the machine separate to open a gap between them. The actuators and sensors face into the gap such that when a cartridge with a fluid circuit is placed in the gap and the two parts are brought together closing the gap, the actuators and sensor engage the fluid circuit. One of the parts has an operator interface with a display that is preferably aligned with the gap in such a way that the frontal area of the machine is minimized.
    Type: Application
    Filed: January 29, 2008
    Publication date: June 26, 2008
    Applicant: NxStage Medical, Inc.
    Inventors: James M. Brugger, Jeffrey H. Burbank, Dennis M. Treu
  • Modular medical treatment replaceable component
    Patent number: 7347849
    Abstract: A first flow path is defined within a first panel that forms a part of an extracorporeal fluid circuit. A second flow path is defined within a second panel that also forms a part of the extracorporeal fluid circuit. The first and second panels are oriented in a fluid processing cartridge for mounting as an integrated unit on a fluid processing machine and for removal as an integrated unit from the fluid processing machine.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: March 25, 2008
    Assignee: NXStage Medical, Inc.
    Inventors: James M. Brugger, Jeffrey H. Burbank, Dennis M. Treu