Patents by Inventor Kenneth R. Lutchen

Kenneth R. Lutchen 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).

  • Variable peak pressure ventilation method and system
    Patent number: 6907881
    Abstract: A system and method for ventilating a lung in a living being by varying the peak inspiratory pressure. The peak inspiratory pressure may deviate about a mean that is chosen to correspond with a knee in a pressure-volume curve of the lung.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: June 21, 2005
    Assignees: The Trustees of Boston University, Brigham and Women's Hospital
    Inventors: Bela Suki, Kenneth R. Lutchen, Edward P. Ingenito
  • Variable peak pressure ventilation method and system
    Publication number: 20030029452
    Abstract: A system and method for ventilating a lung in a living being by varying the peak inspiratory pressure. The peak inspiratory pressure may deviate about a mean that is chosen to correspond with a knee in a pressure-volume curve of the lung.
    Type: Application
    Filed: April 12, 2002
    Publication date: February 13, 2003
    Applicant: The Trustees of Boston University
    Inventors: Bela Suki, Kenneth R. Lutchen, Edward P. Ingenito
  • Enhanced ventilation waveform device
    Patent number: 6435182
    Abstract: A novel ventilator waveform having an enhanced inspiratory flow pattern is ideally suited for determining an effective “inspiratory impedance” in ventilator-dependent patients, and/or patients with severe obstruction resulting in expiratory flow-limitation. This waveform is referred to herein as the “Enhanced Ventilator Waveform” (EVW). The EVW maintains ventilatory support while simultaneously providing an accurate and sensible assessment of the mechanical status of the lungs or total respiratory system. The EVW technique of the present invention ensures that normal (tidal) volume levels are delivered during each inspiration, and that expiration remains passive. Furthermore, accurate estimation of lung resistance and elastance is established for several frequencies surrounding the primary ventilator breathing rate. From the resistance and elastance data, the mean level and structural distribution of airway versus tissue constriction conditions in the lung can be inferred.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: August 20, 2002
    Assignee: Trustees of Boston University
    Inventors: Kenneth R. Lutchen, David W. Kaczka, Bela Suki
  • Infant respiratory impedance measuring apparatus and methods using forced oscillations
    Patent number: 5318038
    Abstract: An infant respiratory impedance measuring apparatus and method using forced oscillations is disclosed. In order to account for the effects of the mask, a shunt compliance is placed in parallel with the components representing the impedance of the infant.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: June 7, 1994
    Assignee: Trustees of Boston University
    Inventors: Andrew C. Jackson, Kenneth R. Lutchen