Patents by Inventor Richard George Cornelius

Richard George Cornelius 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).

  • Variable stiffness multi-lumen catheter
    Patent number: 5649909
    Abstract: A dilation catheter having a shaft divided into a proximal portion and a distal portion. A dilation balloon is attached to the distal portion of the shaft. The proximal portion of the catheter may have a coating or a sleeve applied thereto to stiffen the proximal portion of the shaft. Alternatively, a dual lumen tube forms the proximal portion of the shaft while two separate tubes form the distal portion of the shaft thus making the distal portion more flexible then the proximal portion of the shaft.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: July 22, 1997
    Assignee: SciMed Life Systems, Inc.
    Inventor: Richard George Cornelius