Patents by Inventor Tom Leenhoven

Tom Leenhoven 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).

  • Device and method for using oscillatory pressure ratio as an indicator for lung opening during high frequency oscillatory ventilation
    Patent number: 6390092
    Abstract: A method for detecting optimal lung volume and determining the maximum lung compliance of a patient on high frequency oscillatory ventilation includes the steps of measuring the peak-to-peak oscillatory pressures in the proximal and distal ends of an endotracheal tube positioned within the patient. The oscillatory pressure ratio is calculated from the peak-to-peak oscillatory pressures in the proximal and distal ends. The mean airway pressure of the patient is then altered. The oscillatory pressure ratio is then recalculated at the altered mean airway pressure. The mean airway pressure is repeatedly altered while additional oscillatory pressure measurements are made until the oscillatory pressure ratio is at or near its minimum value.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: May 21, 2002
    Assignee: Sensormedics Corporation
    Inventor: Tom Leenhoven