Patents by Inventor James G. Barrera

James G. Barrera 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).

  • Mass transfer device having a microporous, spirally wound hollow fiber membrane
    Patent number: 4975247
    Abstract: A hollow fiber oxygenator including a hollow fiber bundle having first and second ends located within an oxygenator chamber. The oxygenator chamber includes a hollow core around which the hollow fibers are spirally wound and includes an outer casing adjacent the fibers. A gas entry port is coupled to the interior of the fibers adjacent the first end of the bundle and a gas outlet is coupled to the interior of the fibers at the second end of the bundle. A blood inlet to the oxygenator chamber, exterior of the fibers, is provided adjacent the second end of the bundle, and a blood outlet from the oxygenator chamber is provided adjacent the first end of the bundle. The resulting structure provides an axial flow oxygenator, in which the direction of blood flow through the oxygenator chamber is opposite the direction of gas flow through the fibers.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: December 4, 1990
    Assignee: Medtronic, Inc.
    Inventors: Anthony Badolato, James G. Barrera, Edmund R. Corey, Jr.
  • Oxygenator for use in open heart
    Patent number: D290875
    Type: Grant
    Filed: January 8, 1985
    Date of Patent: July 14, 1987
    Assignee: McNeilab, Inc.
    Inventors: Anthony Badolato, Edmund R. Corey, Jr., James G. Barrera