Patents by Inventor Michael S. Feld

Michael S. Feld 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).

  • Mode mixer for a laser catheter
    Patent number: 4669467
    Abstract: A mode mixer is described for mixing themodes of optical fibers in a laser catheter adapted to be inserted in arteries for treatment of arterial tissue or obstructions. The mode mixer creates microbends in the fibers by physically deforming the fibers, such as by mechanically pressing the fibers against a rigid member to adjust the spot size of light exiting the fibers.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: June 2, 1987
    Assignee: Massachusetts Institute of Technology
    Inventors: Robert L. Willett, Robert M. Cothren, Jr., Carter Kittrell, Michael S. Feld
  • Method for making optical shield for a laser catheter
    Patent number: 4648892
    Abstract: A method of forming an optical shield for a laser catheter is disclosed in which a rod of light transmissive material is optically polished and inserted into a tube of similar material and fused and the distal end of the rod is cut and the assembly is optically polished at the distal end.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: March 10, 1987
    Assignee: Massachusetts Institute of Technology
    Inventors: Carter Kittrell, Gary B. Hayes, Michael S. Feld