Patents by Inventor David Mahvi

David Mahvi 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).

  • Circumferential electrode array for tissue ablation
    Patent number: 10130415
    Abstract: An electrode array supports multiple electrodes and energizes them so that adjacent electrodes do not have the same polarity. In one embodiment, the electrodes are held about a circumference outside and surrounding a tumor and opposed electrodes are energized in a round robin fashion to promote current flow through the center of the tumor from a variety of angles.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 20, 2018
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: John G. Webster, Dieter Haemmerich, James Arthur Will, David Mahvi, Ann O'Rourke, David James Schutt
  • Floating sleeve microwave antenna for tumor ablation
    Patent number: 7611508
    Abstract: An antenna for microwave tumor ablation provides coaxial antenna conductors surrounded by an insulated sleeve of length and size promoting destructive interference of axial microwave energy passing inside and outside of the sleeve to limit the tail of SAR power toward the skin.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: November 3, 2009
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Deshan Yang, John Michael Bertram, Mark Christopher Converse, John Goodwin Webster, David Mahvi
  • Circumferential electrode array for tissue ablation
    Publication number: 20090036882
    Abstract: An electrode array supports multiple electrodes and energizes them so that adjacent electrodes do not have the same polarity. In one embodiment, the electrodes are held about a circumference outside and surrounding a tumor and opposed electrodes are energized in a round robin fashion to promote current flow through the center of the tumor from a variety of angles.
    Type: Application
    Filed: February 25, 2008
    Publication date: February 5, 2009
    Inventors: John G. Webster, Dieter Haemmerich, James Arthur Will, David Mahvi, Ann O'Rourke, David James Schutt
  • Floating sleeve microwave antenna for tumor ablation
    Publication number: 20070049917
    Abstract: An antenna for microwave tumor ablation provides coaxial antenna conductors surrounded by an insulated sleeve of length and size promoting destructive interference of axial microwave energy passing inside and outside of the sleeve to limit the tail of SAR power toward the skin.
    Type: Application
    Filed: August 23, 2005
    Publication date: March 1, 2007
    Inventors: Deshan Yang, John Bertram, Mark Converse, John Webster, David Mahvi
  • Electrode array for tissue ablation
    Publication number: 20060064084
    Abstract: An electrode array allows for rapid ablation of a strip of tissue in an organ providing a barrier to blood loss during resection operations.
    Type: Application
    Filed: September 20, 2004
    Publication date: March 23, 2006
    Inventors: Dieter Haemmerich, David Mahvi, John Webster, David Schutt