Patents by Inventor J. Michael Stuart

J. Michael Stuart 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).

  • Obturator and tracheostomy tube containing the obturator
    Patent number: 5546937
    Abstract: A plastic obturator suitable for use in a tracheostomy tube comprising a handle at its proximal end, a bullet-like shaped tip at its distal end, and an outer cannula supporting body between the handle and the tip, which outer cannula supporting body contains sectionalized flex points and laterally extending supporting surfaces along its length. Also described is a tracheostomy tube, preferably one that is flexible, containing the plastic obturator of the invention.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: August 20, 1996
    Inventors: J. Michael Stuart, Jeff G. Uding
  • Device using connector tube to lock inner cannula inside outer cannula
    Patent number: 5390669
    Abstract: A tracheostomy device having an inner cannula with a connector head and an outer cannula. The inner cannula is secured within the outer cannula by a locking device having spaced apart, elongated handles that are pivotally mounted on the inner cannula. The handles are spaced such that a connector may be mounted on the connector head, thereby preventing movement of the handles. A method of locking the inner cannula to the outer cannula is also described.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: February 21, 1995
    Assignee: Mallinckrodt Medical, Inc.
    Inventors: J. Michael Stuart, David Frigger