Patents by Inventor Robert Davidson Warters

Robert Davidson Warters 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).

  • Patent number: 6155252
    Abstract: A novel method and apparatus for directing air flow and for removing internal secretions within an intubated patient is disclosed. In broad respects, the invention disclosed is an air conduit assembly positionable within a patient having an inhalation gas pathway and a separate exhalation gas pathway, so that with each successive burst of exhalation gasses forces secretions progressively out of the patient through the separate exhalation gas pathway. The air conduit may be a variety of air conduits positionable within a patient, including an endotracheal tube and a tracheostomy tube. Also disclosed is a novel apparatus and methods for performing partial liquid ventilation of an intubated patient.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: December 5, 2000
    Assignee: Board of Regents, The University of Texas System
    Inventor: Robert Davidson Warters
  • Patent number: 5765557
    Abstract: A novel method and apparatus for directing air flow and for removing internal secretions within an intubated patient is disclosed. In broad respects, the invention disclosed is an air conduit assembly positionable within a patient having an inhalation gas pathway and a separate exhalation gas pathway, so that each successive burst of exhalation gasses forces secretions progressively out of the patient through the separate exhalation gas pathway. The air conduit may be a variety of air conduits positionable within a patient, including an endotracheal tube and a tracheostomy tube. One particular embodiment includes an air conduit having a flexible partition attached along its longitudinal extension, which defines the inhalation gas pathway and separate exhalation gas pathway. A collapsible distal valve member may also be attached to one side of the air conduit to urge the flexible partition against the opposite interior wall of the air conduit during exhalation.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: June 16, 1998
    Assignee: Board of Regents, The University of Texas System
    Inventor: Robert Davidson Warters