Patents by Inventor Matthew Frederic Duncan

Matthew Frederic Duncan 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).

  • Multi-directional steerable catheters and control handles
    Patent number: 6183435
    Abstract: A multi-directional steerable catheter comprises a catheter body, a tip section attached to the distal end of the catheter body, and a control handle mounted at its distal end to the proximal end of the catheter body. The control handle comprises a housing having a piston chamber extending therethrough and a piston assembly having proximal and distal portions slidably mounted in the piston chamber and longitudinally movable between proximal and distal positions. The proximal portion of the piston assembly comprises a distal section comprising a plurality of notches at its proximal end, a proximal section comprising a plurality of longitudinal grooves about its entire circumference separated by dividing walls having angled distal ends, and a circumferential recess between the proximal section and distal section.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: February 6, 2001
    Assignee: Cordis Webster, Inc.
    Inventors: Timothy Ray Bumbalough, Matthew Frederic Duncan, David Blanchard Opie