Patents by Inventor John C. Budd

John C. Budd 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).

  • Mitral valve prosthesis rotator
    Patent number: 5403305
    Abstract: A prosthetic heart valve rotator with an eccentric socket attached to a bendable shaft. The heart valve is manipulated by a rotator head which is attached to the socket in any of a plurality of selectable angular positions. The rotator head is held in the socket by a spring which circumscribes the socket, thereby reducing stress in the spring.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: April 4, 1995
    Assignee: Carbomedics, Inc.
    Inventors: Joseph A. Sauter, Louis A. Campbell, John C. Budd
  • Heart valve prosthesis with improved bi-leaflet pivot design
    Patent number: 5192313
    Abstract: A bi-leaflet heart valve having an annular body and a pair of leaflets. The leaflets pivot around improved ears, whose motion is constrained by generally triangular recesses. The triangular recesses have a pivotal vertex in proximity to a centerline of the annular base and on the upstream side of the heart valve. Opposite the pivotal vertex is a slightly concave base. An upstream wall of the recess is convex.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: March 9, 1993
    Assignee: Carbomedics, Inc.
    Inventors: John C. Budd, Louis A. Campbell