Patents by Inventor Greg Johnston

Greg Johnston 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).

  • HTA fluid level and fluid type measurement
    Patent number: 8596118
    Abstract: Apparatus for measuring an amount of ablation fluid circulating in a system for ablating tissue comprises a plurality of electrical contacts located within an ablation fluid receiving chamber of the system, the contacts being located at various heights and a data processing arrangement coupled to the contacts to receive data corresponding to electrical conductance between pairs of the contacts, the data processing arrangement determining a height of fluid in the chamber based on the measured conductance levels and determining based on the determined height, whether an amount of fluid circulating through the system is within a desired range.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: December 3, 2013
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael P. Fusaro, Greg Johnston, Stephen S. Keaney, Boris Shapeton
  • HTA Fluid Level and Fluid Type Measurement
    Publication number: 20120167678
    Abstract: Apparatus for measuring an amount of ablation fluid circulating in a system for ablating tissue comprises a plurality of electrical contacts located within an ablation fluid receiving chamber of the system, the contacts being located at various heights and a data processing arrangement coupled to the contacts to receive data corresponding to electrical conductance between pairs of the contacts, the data processing arrangement determining a height of fluid in the chamber based on the measured conductance levels and determining based on the determined height, whether an amount of fluid circulating through the system is within a desired range.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Inventors: Michael P. Fusaro, Greg Johnston, Stephen S. Keaney, Boris Shapeton
  • HTA fluid level and fluid type measurement
    Patent number: 8146420
    Abstract: Apparatus for measuring an amount of ablation fluid circulating in a system for ablating tissue comprises a plurality of electrical contacts located within an ablation fluid receiving chamber of the system, the contacts being located at various heights and a data processing arrangement coupled to the contacts to receive data corresponding to electrical conductance between pairs of the contacts, the data processing arrangement determining a height of fluid in the chamber based on the measured conductance levels and determining based on the determined height, whether an amount of fluid circulating through the system is within a desired range.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: April 3, 2012
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Michael P. Fusaro, Greg Johnston, Stephen S. Keaney, Boris Shapeton
  • HTA Fluid Level and Fluid Type Measurement
    Publication number: 20090158842
    Abstract: Apparatus for measuring an amount of ablation fluid circulating in a system for ablating tissue comprises a plurality of electrical contacts located within an ablation fluid receiving chamber of the system, the contacts being located at various heights and a data processing arrangement coupled to the contacts to receive data corresponding to electrical conductance between pairs of the contacts, the data processing arrangement determining a height of fluid in the chamber based on the measured conductance levels and determining based on the determined height, whether an amount of fluid circulating through the system is within a desired range.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 25, 2009
    Inventors: Michael P. Fusaro, Greg Johnston, Stephen S. Keaney, Boris Shapeton
  • Filter element for use in bagging asbestos during an asbestos removal process
    Patent number: 5057127
    Abstract: A filter element is placed over the inlet of a hose used to draw a vacuum on a bag that contains asbestos-containing materials collected during an asbestos removal process. The filter element is disposable and is removed from the hose as that hose is pulled out of the bag after the vacuum is drawn on the bag. The filter element is frusto-conical and one embodiment includes a rim located near one end thereof to assist in the removal of the filter element from the hose.
    Type: Grant
    Filed: May 3, 1990
    Date of Patent: October 15, 1991
    Inventors: Terry J. Lange, Greg Johnston