Patents by Inventor David S. Ostrowski

David S. Ostrowski 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).

  • Catheter having imperforate protective barrier and method for making and using the same
    Patent number: 5474542
    Abstract: A catheter has a distal end which is to be positioned through potentially contaminated tissue within a patient to a desired site, and a proximal end. The catheter has at least one fluid lumen extending between the distal end and the proximal end. The fluid lumen provides fluid communication between the desired site and the proximal end. A removable protective barrier is positioned within the fluid lumen at its distal end. The protective barrier is made from a biocompatible material and selectively occludes the distal end of the fluid lumen so that entry of the contaminated tissue, prior to the distal end of the catheter reaching the desired site, is prevented.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: December 12, 1995
    Inventors: Robert A. Gandi, Gianfranco U. Meduri, David S. Ostrowski
  • Bronchoscopic balloon tipped catheter and method of making the same
    Patent number: 4886496
    Abstract: A balloon tipped catheter and process for making the same is provided for the insertion into the suction channel of a bronchoscope. The balloon material is stretched across a recess formed in the catheter tubing. The stretched balloon forms an hour glass shape, thereby preventing the balloon material from becoming damaged while the catheter is being pushed through a curved bronchoscope.
    Type: Grant
    Filed: February 4, 1988
    Date of Patent: December 12, 1989
    Inventors: Craig S. Conoscenti, Robert A. Gandi, Gianfranco U. Meduri, David S. Ostrowski