Patents by Inventor Steven J. Wurgler

Steven J. Wurgler 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: 9757504
    Abstract: Systems and methods for performing hemodialysis to remove metabolic waste from the blood of a patient are disclosed. The systems and methods preferably comprise at least one blood processing apparatus that receives whole blood from a patient. Cellular blood components are removed from the whole blood by hemofiltration, to provide filtered plasma comprising metabolic waste that is substantially reduced of blood cells. The cellular blood components may be returned to the patient. The filtered plasma comprising waste may be removed from the blood processing apparatus through a waste path for further processing in a separate apparatus, or in the same apparatus in a second stage processing procedure to remove metabolic waste components and excess water from the plasma by hemodialysis. At least one of the hemofiltration and hemodialysis processing apparatus comprises a Taylor vortex-enhanced separation apparatus.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: September 12, 2017
    Assignees: BAXTER INTERNATIONAL INC., BAXTER HEALTHCARE SA
    Inventors: Randolph H. Watkins, Steven J. Wurgler, Shincy Maliekkal, Sujatha Karoor, Katrina Smith
  • Publication number: 20150122714
    Abstract: Systems and methods for performing hemodialysis to remove metabolic waste from the blood of a patient are disclosed. The systems and methods preferably comprise at least one blood processing apparatus that receives whole blood from a patient. Cellular blood components are removed from the whole blood by hemofiltration, to provide filtered plasma comprising metabolic waste that is substantially reduced of blood cells. The cellular blood components may be returned to the patient. The filtered plasma comprising waste may be removed from the blood processing apparatus through a waste path for further processing in a separate apparatus, or in the same apparatus in a second stage processing procedure to remove metabolic waste components and excess water from the plasma by hemodialysis. At least one of the hemofiltration and hemodialysis processing apparatus comprises a Taylor vortex-enhanced separation apparatus.
    Type: Application
    Filed: January 12, 2015
    Publication date: May 7, 2015
    Inventors: Randolph H. Watkins, Steven J. Wurgler, Shincy Maliekkal, Sujatha Karoor, Katrina Smith
  • Patent number: 8961789
    Abstract: Systems and methods for performing hemodialysis to remove metabolic waste from the blood of a patient are disclosed. The systems and methods preferably comprise at least one blood processing apparatus that receives whole blood from a patient. Cellular blood components are removed from the whole blood by hemofiltration, to provide filtered plasma comprising metabolic waste that is substantially reduced of blood cells. The cellular blood components may be returned to the patient. The filtered plasma comprising waste may be removed from the blood processing apparatus through a waste path for further processing in a separate apparatus, or in the same apparatus in a second stage processing procedure to remove metabolic waste components and excess water from the plasma by hemodialysis. At least one of the hemofiltration and hemodialysis processing apparatus comprises a Taylor vortex-enhanced separation apparatus.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: February 24, 2015
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Randolph H. Watkins, Steven J. Wurgler, Shincy Maliekkal, Sujatha Karoor, Katrina Smith
  • Publication number: 20100108606
    Abstract: Systems and methods for performing hemodialysis to remove metabolic waste from the blood of a patient are disclosed. The systems and methods preferably comprise at least one blood processing apparatus that receives whole blood from a patient. Cellular blood components are removed from the whole blood by hemofiltration, to provide filtered plasma comprising metabolic waste that is substantially reduced of blood cells. The cellular blood components may be returned to the patient. The filtered plasma comprising waste may be removed from the blood processing apparatus through a waste path for further processing in a separate apparatus, or in the same apparatus in a second stage processing procedure to remove metabolic waste components and excess water from the plasma by hemodialysis. At least one of the hemofiltration and hemodialysis processing apparatus comprises a Taylor vortex-enhanced separation apparatus.
    Type: Application
    Filed: December 18, 2008
    Publication date: May 6, 2010
    Applicants: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Randolf H. Watkins, Steven J. Wurgler, Shincy Maliekkal, Sujatha Karoor, Katrina Smith
  • Patent number: 5192340
    Abstract: An emission control system for a fluid composition comprised of volatile constituents used to clean a hollow fiber filter or capillary flow dialyzer including a housing having a chamber for receiving the dialyzer, a control system is used for establishing a desired environment in the chamber, the dialyzer and the fibers, a separator operatively associated with the chamber for separating gas and liquid components of the fluid composition, a stripper connected to the separator for fractionating lower boiling point volatiles from the gas to return the higher boiling point volatiles to the fluid phase and yield a stripped or solvent humidified gas and a delivery system for routing the stripped gas to the chamber dialyzer and fibers as a drying agent.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: March 9, 1993
    Assignee: Baxter International, Inc.
    Inventors: David C. H. Grant, Randolph H. Watkins, Robert M. Sluga, Steven J. Wurgler, Gregory D. Mills, Dennis C. Berry, Jerry D. Fisher