Patents by Inventor Mark Shahar

Mark Shahar 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).

  • Exhalation valve assembly
    Publication number: 20050098177
    Abstract: Breathing apparatus including an exhalation tube and an outlet port in fluid communication with the exhalation tube, where the outlet port includes an outlet lip that is not uniformly flat in any cutting plane.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 12, 2005
    Inventors: Sajed Haj-Yahya, Mark Shahar
  • Differential pressure sensor with sloped strut edges for respiratory monitoring
    Patent number: 6802225
    Abstract: A differential-pressure flow sensor for airflow measurement in the presence of water condensation, for use with mechanical ventilators. The pressure-sensing ports at either end of the interfering body are displaced from the inner surface of the surrounding tubing, so as to prevent obstruction of the pressure-sensing ports by free flowing condensed water. The leading edge of the interfering body is angulated so as to deflect airflow towards the pressure-sensing port on the trailing edge of the interfering body, thereby flushing water droplets away from the port. The sides of the interfering body are sloped so as to generate turbulent boundary layer airflow at areas distant from the pressure-sensing ports, thereby encouraging water condensation away from the ports.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: October 12, 2004
    Assignee: Versamed Medical Systems Ltd.
    Inventors: Mark Shahar, Boaz Misholi, Sajed Haj-Yahya
  • Respiratory flow sensor
    Publication number: 20040016302
    Abstract: A differential-pressure flow sensor for airflow measurement in the presence of water condensation, for use with mechanical ventilators. The pressure-sensing ports at either end of the interfering body are displaced from the inner surface of the surrounding tubing, so as to prevent obstruction of the pressure-sensing ports by free flowing condensed water. The leading edge of the interfering body is angulated so as to deflect airflow towards the pressure-sensing port on the trailing edge of the interfering body, thereby flushing water droplets away from the port. The sides of the interfering body are sloped so as to generate turbulent boundary layer airflow at areas distant from the pressure-sensing ports, thereby encouraging water condensation away from the ports.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 29, 2004
    Inventors: Boaz Misholi, Mark Shahar, Sajed Haj-Yahya