Patents by Inventor Nhan Viet Pham

Nhan Viet Pham 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).

  • Patent number: 10987460
    Abstract: The present specification describes a modular, portable hemofiltration system, for providing improved clearance levels of blood toxins, which includes at least one roller pump that is designed and operated to generate a rapidly varying pressure profile of fluid within at least a blood circuit of the hemofiltration system.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: April 27, 2021
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Barry Neil Fulkerson, Nhan Viet Pham, Alec Huang
  • Publication number: 20200390958
    Abstract: The present specification discloses a portable dialysis system comprising a mechanism that allows the user to accurately position an air bubble in a venous line, so that it can be safely removed. When an air bubble is detected, the system automatically runs the blood pump in a direction such that the air bubble is placed close to the extraction point on the venous line, from where it can safely be removed using a needleless syringe.
    Type: Application
    Filed: August 27, 2020
    Publication date: December 17, 2020
    Inventors: John Arrizza, John Erik Michael Palmroos, Ernesto Trillanes de la Fuente, Nhan Viet Pham, Barry Neil Fulkerson
  • Patent number: 10850017
    Abstract: The present specification describes systems and methods for detecting an occlusion in a tubing carrying a patient's blood through a manifold and into a dialyzer in a dialysis system. A controller measures pressures value of the blood at a predetermined point after exiting the manifold and before entering the dialyzer, calculates a historical running average, calculates a weighted sum of the most recent pressure values, and determines whether to trigger an occlusion alarm based on a function of the historical running average and the weighted sum of the most recent pressure values.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: December 1, 2020
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Barry Neil Fulkerson, Nhan Viet Pham, Alec Huang
  • Patent number: 10786616
    Abstract: The present specification discloses a portable dialysis system comprising a mechanism that allows the user to accurately position an air bubble in a venous line, so that it can be safely removed. When an air bubble is detected, the system automatically runs the blood pump in a direction such that the air bubble is placed close to the extraction point on the venous line, from where it can safely be removed using a needleless syringe.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: September 29, 2020
    Assignee: Fresnius Medical Care Holdings, Inc.
    Inventors: John Arrizza, John Erik Michael Palmroos, Ernesto Trillanes de la Fuente, Jr., Nhan Viet Pham, Barry Neil Fulkerson
  • Publication number: 20200215251
    Abstract: The present specification provides a reservoir bag for containing a dialysate during a dialysis treatment. The bag has four walls and a membrane extending from a first wall to a second opposing wall which divides the bag into a first and a second sub-reservoir having changeable volumes. The maximum volume of each sub-reservoir is between 80 to 100% of the entire volume of the bag. The bag further includes at least an inlet and an outlet positioned in at least one of the walls for enabling fluid entry into and exit out of the first sub-reservoir and at least an inlet and an outlet positioned in at least one of the walls for enabling fluid entry into and exit out of the second sub-reservoir.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 9, 2020
    Inventors: Seth Howard Groder, Barry Neil Fulkerson, John Arrizza, Nhan Viet Pham
  • Patent number: 10561778
    Abstract: The present specification provides a reservoir bag for containing a dialysate during a dialysis treatment. The bag has four walls and a membrane extending from a first wall to a second opposing wall which divides the bag into a first and a second sub-reservoir having changeable volumes. The maximum volume of each sub-reservoir is between 80 to 100% of the entire volume of the bag. The bag further includes at least an inlet and an outlet positioned in at least one of the walls for enabling fluid entry into and exit out of the first sub-reservoir and at least an inlet and an outlet positioned in at least one of the walls for enabling fluid entry into and exit out of the second sub-reservoir.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: February 18, 2020
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Seth Howard Groder, Barry Neil Fulkerson, John Arriza, Nhan Viet Pham
  • Publication number: 20190381228
    Abstract: The present specification describes systems and methods for detecting an occlusion in a tubing carrying a patient's blood through a manifold and into a dialyzer in a dialysis system. A controller measures pressures value of the blood at a predetermined point after exiting the manifold and before entering the dialyzer, calculates a historical running average, calculates a weighted sum of the most recent pressure values, and determines whether to trigger an occlusion alarm based on a function of the historical running average and the weighted sum of the most recent pressure values.
    Type: Application
    Filed: December 26, 2018
    Publication date: December 19, 2019
    Inventors: Barry Neil Fulkerson, Nhan Viet Pham, Alec Huang
  • Patent number: 10195326
    Abstract: The present specification describes systems and methods for detecting an occlusion in a tubing carrying a patient's blood through a manifold and into a dialyzer in a dialysis system. A controller measures pressures value of the blood at a predetermined point after exiting the manifold and before entering the dialyzer, calculates a historical running average, calculates a weighted sum of the most recent pressure values, and determines whether to trigger an occlusion alarm based on a function of the historical running average and the weighted sum of the most recent pressure values.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: February 5, 2019
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Barry Neil Fulkerson, Nhan Viet Pham, Alec Huang
  • Publication number: 20190001046
    Abstract: The present specification discloses a portable dialysis system comprising a mechanism that allows the user to accurately position an air bubble in a venous line, so that it can be safely removed. When an air bubble is detected, the system automatically runs the blood pump in a direction such that the air bubble is placed close to the extraction point on the venous line, from where it can safely be removed using a needleless syringe.
    Type: Application
    Filed: January 2, 2018
    Publication date: January 3, 2019
    Inventors: John Arrizza, John Erik Michael Palmroos, Ernesto Trillanes de la Fuente, JR., Nhan Viet Pham, Barry Neil Fulkerson
  • Publication number: 20180250462
    Abstract: The present specification provides a reservoir bag for containing a dialysate during a dialysis treatment. The bag has four walls and a membrane extending from a first wall to a second opposing wall which divides the bag into a first and a second sub-reservoir having changeable volumes. The maximum volume of each sub-reservoir is between 80 to 100% of the entire volume of the bag. The bag further includes at least an inlet and an outlet positioned in at least one of the walls for enabling fluid entry into and exit out of the first sub-reservoir and at least an inlet and an outlet positioned in at least one of the walls for enabling fluid entry into and exit out of the second sub-reservoir.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 6, 2018
    Inventors: Seth Howard Groder, Barry Neil Fulkerson, John Arriza, Nhan Viet Pham
  • Patent number: 9889244
    Abstract: The present specification discloses a portable dialysis system comprising a mechanism that allows the user to accurately position an air bubble in a venous line, so that it can be safely removed. When an air bubble is detected, the system automatically runs the blood pump in a direction such that the air bubble is placed close to the extraction point on the venous line, from where it can safely be removed using a needleless syringe.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: February 13, 2018
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: John Arrizza, John Erik Michael Palmroos, Ernesto Trillanes de la Fuente, Jr., Nhan Viet Pham, Barry Neil Fulkerson
  • Publication number: 20170258979
    Abstract: The present specification describes a modular, portable hemofiltration system, for providing improved clearance levels of blood toxins, which includes at least one roller pump that is designed and operated to generate a rapidly varying pressure profile of fluid within at least a blood circuit of the hemofiltration system.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 14, 2017
    Inventors: Barry Neil Fulkerson, Nhan Viet Pham, Alec Huang
  • Publication number: 20170258975
    Abstract: The present specification describes systems and methods for detecting an occlusion in a tubing carrying a patient's blood through a manifold and into a dialyzer in a dialysis system. A controller measures pressures value of the blood at a predetermined point after exiting the manifold and before entering the dialyzer, calculates a historical running average, calculates a weighted sum of the most recent pressure values, and determines whether to trigger an occlusion alarm based on a function of the historical running average and the weighted sum of the most recent pressure values.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 14, 2017
    Inventors: Barry Neil Fulkerson, Nhan Viet Pham, Alec Huang
  • Publication number: 20170173248
    Abstract: The present specification discloses a portable dialysis system comprising a mechanism that allows the user to accurately position an air bubble in a venous line, so that it can be safely removed. When an air bubble is detected, the system automatically runs the blood pump in a direction such that the air bubble is placed close to the extraction point on the venous line, from where it can safely be removed using a needleless syringe.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventors: John Arrizza, John Erik Michael Palmroos, Ernesto Trillanes de la Fuente, Jr., Nhan Viet Pham, Barry Neil Fulkerson