Patents by Inventor Daniel Call

Daniel Call 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).

  • Fluid line connector devices methods and systems
    Patent number: 11504517
    Abstract: A frangible connector has a first side that forms a female luer when a second side is fractured at a predefined break line. The second side may be connected to a fluid circuit, for example, a source of medical treatment fluid such as dialysate.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: November 22, 2022
    Assignee: NxStage Medical, Inc.
    Inventors: Daniel Call, Matthew Onken
  • Fluid Line Connector Devices Methods and Systems
    Publication number: 20190247644
    Abstract: A frangible connector has a first side that forms a female luer when a second side is fractured at a predefined break line. The second side may be connected to a fluid circuit, for example, a source of medical treatment fluid such as dialysate.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 15, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Daniel CALL, Matthew ONKEN
  • Fluid Line Connector Devices Methods and Systems
    Publication number: 20190001113
    Abstract: A frangible connector has a first side that forms a female luer when a second side is fractured at a predefined break line. The second side may be connected to a fluid circuit, for example, a source of medical treatment fluid such as dialysate.
    Type: Application
    Filed: December 9, 2016
    Publication date: January 3, 2019
    Applicant: NxStage Medical, Inc.
    Inventors: Daniel CALL, Matthew ONKEN
  • Volumetric fluid balance control for extracorporeal blood treatment
    Patent number: 7112273
    Abstract: A method and device for adjusting a volumetric flow balancing system for an extracorporeal blood treatment system receives a pressure signal and calculates a compensation factor that is used to adjust the relative flow rates of the volumetrically balanced fluids. For example, in a hemofiltration system, the flow of waste and and replacement fluid may be balanced volumetrically. Ultrafiltrate may be pumped in a bypass circuit in such a system. The rate of ultrafiltrate flow may be adjusted by the compensation signal. The compensation signal may be empirically derived.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: September 26, 2006
    Assignee: Nxstage Medical, Inc.
    Inventors: William Weigel, Daniel Call, Dennis Treu
  • Volumetric fluid balance control for extracorporeal blood treatment
    Publication number: 20050000868
    Abstract: A method and device for adjusting a volumetric flow balancing system for an extracorporeal blood treatment system receives a pressure signal and calculates a compensation factor that is used to adjust the relative flow rates of the volumetrically balanced fluids. For example, in a hemofiltration system, the flow of waste and and replacement fluid may be balanced volumetrically. Ultrafiltrate may be pumped in a bypass circuit in such a system. The rate of ultrafiltrate flow may be adjusted by the compensation signal. The compensation signal may be empirically derived.
    Type: Application
    Filed: September 26, 2003
    Publication date: January 6, 2005
    Inventors: William Weigel, Daniel Call, Dennis Treu