Patents by Inventor Drew A. Hoffmann

Drew A. Hoffmann 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).

  • Electrical connection for medical electrical stimulation electrodes
    Patent number: 5385578
    Abstract: An improved endocardial lead for electrocardial stimulation includes a sleeve that has a face surface. A conductor fitted into the sleeve, such that a distal end of the conductor passes completely through the sleeve, past the face surface, is electrically and mechanically connected to the face surface of the sleeve by mechanical means, e.g. crimping, and/or through the application of heat, e.g. welding or brazing. An electrode is integrated with the sleeve along an outer sleeve surface. A highly reliable, redundant joint is thereby provided between the sleeve and the conductor that secures the conductor against movement and therefore minimizes stress placed on the conductor, preventing fatigue to the conductor at the joint.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: January 31, 1995
    Assignee: Ventritex, Inc.
    Inventors: M. Elizabeth Bush, Drew Hoffmann, M. Dean Matthews, Pedro G. Medrano