Patents by Inventor Leonard A. Nordstrom

Leonard A. Nordstrom 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).

  • Inflatable tip for laser catheterization
    Patent number: 4781681
    Abstract: A transluminal balloon laser catheter has an inflatable distal tip formed by an elongated balloon sealed at the distal end of a length of catheter tubing, and inflatable to an operating configuration in which the balloon effectively extends the distal end of an optical fiber lumen through the catheter tubing. One embodiment of the balloon is formed with a substantially planar distal face, transverse with respect to the extension of the balloon. In an alternative embodiment, the distal face of the balloon is formed as a truncated cone, converging proximally from a radially outward longitudinal balloon section to a radially inward longitudinal balloon section whereby the distal tip of an optical fiber, even when advanced distally of the optical fiber lumen, is proximal with respect to the most distal portion of the balloon.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: November 1, 1988
    Assignee: GV Medical, Inc.
    Inventors: James S. Sharrow, Leonard A. Nordstrom