Patents by Inventor Patricia Sawzik

Patricia Sawzik 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).

  • Membrane apparatus with enhanced mass transfer via active mixing
    Patent number: 6348175
    Abstract: A blood membrane oxygenator having a housing defining a blood flow path, a rotor hub in the form of a double lumen shaft, and a plurality of distributor disks each having a plurality of hollow fibers which extend across the housing blood flow path. The plurality of distributor disks rotate within the housing to mix the blood resulting in three-dimensional mixing, disruption of the blood boundary layer and efficient blood oxygenation.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: February 19, 2002
    Assignee: University of Pittsburgh
    Inventors: Harvey S. Borovetz, Philip Litwak, Mark Gartner, Gary D. Reeder, Patricia Sawzik
  • Membrane apparatus with enhanced mass transfer via active mixing
    Patent number: 6106776
    Abstract: A blood membrane oxygenator has a housing defining a blood flow path, a rotor hub in the form of a double lumen shaft, and a plurality of distributor disks each having a plurality of hollow fibers which extend across the housing blood flow path. The plurality of distributor disks rotate within the housing to mix the blood resulting in three-dimensional mixing, disruption of the blood boundary layer and efficient blood oxygenation.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: August 22, 2000
    Assignee: University of Pittsburgh
    Inventors: Harvey S. Borovetz, Philip Litwak, Mark Gartner, Gary D. Reeder, Patricia Sawzik