Patents by Inventor Drew A. Hoffman

Drew A. Hoffman 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).

  • Endocardial lead system with defibrillation electrode fixation
    Patent number: 5693081
    Abstract: A lead system for use with an implantable cardioverter/defibrillator is disclosed. The lead system includes a fixation hook positioned approximately half-way between the distal tip of the lead and the tricuspid valve. The distal tip of the lead is positioned at the apex of the right ventricle and may or may not be secured there by a second fixation means such as a screw tip or tines. The fixation hook allows the defibrillation electrode to be accurately positioned by the patient's surgeon and maintained in contact with the septum wall of the patient's heart. By providing such intimate contact between the defibrillation electrode and the septum wall, defibrillation thresholds are reduced.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: December 2, 1997
    Assignee: Pacesetter, Inc.
    Inventors: Eric S. Fain, Drew A. Hoffman, Benjamin D. Pless
  • Endocardial lead system with defibrillation electrode fixation
    Patent number: 5476500
    Abstract: A lead system for use with an implantable cardioverter/defibrillator is disclosed. The lead system includes a fixation hook positioned approximately half-way between the distal tip of the lead and the tricuspid valve. The distal tip of the lead is positioned at the apex of the right ventricle and may or may not be secured there by a second fixation means such as a screw tip or tines. The fixation hook allows the defibrillation electrode to be accurately positioned by the patient's surgeon and maintained in contact with the septum wall of the patient's heart. By providing such intimate contact between the defibrillation electrode and the septum wall, defibrillation thresholds are reduced.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: December 19, 1995
    Assignee: Ventritex, Inc.
    Inventors: Eric S. Fain, Drew A. Hoffman, Benjamin D. Pless