Patents by Inventor Jonas A. Runquist

Jonas A. Runquist 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).

  • Heart valve prosthesis with rotatable cuff
    Patent number: 6358278
    Abstract: A prosthetic heart valve includes an orifice ring adapted to carry blood therethrough. An annular recess is formed in an outer surface of the orifice ring and has first and second axially spaced walls. A sewing cuff is adapted to be coupled to a native tissue annulus of a heart and includes an inner annular cuff portion adapted to conform to the first and second recess walls in the orifice ring. A cuff retaining ring extends around the inner annular fabric portion such that the inner annular cuff portion is positioned between the cuff retaining ring and the annular recess.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: March 19, 2002
    Assignee: St. Jude Medical, Inc.
    Inventors: Avrom M. Brendzel, William R. Kramlinger, Michael J. Girard, Jonas A. Runquist
  • Rotatable cuff assembly for a heart valve prosthesis
    Patent number: 5876436
    Abstract: The invention provides a sewing cuff assembly for mounting to the body of a heart valve prosthesis. The sewing cuff assembly comprises a resiliently deformed spring for exerting a force directed toward the orifice structure. When a torque is applied to the valve, the force results in a rotation-resisting torque sufficient to resist rotation during normal operation of the valve after implantation but low enough to permit assisted rotation, as during surgery.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: March 2, 1999
    Assignee: St. Jude Medical, Inc.
    Inventors: Guy P. Vanney, Michael J. Girard, William R. Kramlinger, Jonas A. Runquist, Kimberly A. Anderson, Scott D. Moore, Bob Allan, James E. Graf
  • Current collectors for batteries having cathode-electrolytes and batteries incorporating same
    Patent number: 4666799
    Abstract: Improved current collector design for controlling battery current capability by providing consistent controlled surface area contact between the carbon element of the current collector and its electrical terminal means.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: May 19, 1987
    Assignee: Medtronic, Inc.
    Inventors: Jonas A. Runquist, William G. Howard, David R. Berberick