Patents by Inventor Susan M. Walgren

Susan M. Walgren 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).

  • Bipolar lead adapter with resilient housing and rigid retainers for plug seals
    Patent number: 5000177
    Abstract: An adapter for extending a sensing and stimulation delivery lead in a body stimulation system, such as a cardiac pacer or cardioverter defibrillator, includes a resilient, electrically insulative housing with a longitudinal barrel extended through the majority of the housing length for the insertion of a lead terminal connector. Two spaced apart transverse bores are formed in the housing, open to barrel and to the housing exterior. Two connector assemblies are mounted in the housing and positioned to receive respective pin and ring terminals of the lead when inserted into the barrel. Each connector assembly can be adjusted to secure the lead in the housing, by a tool inserted through one of the transverse bores. Each connector assembly is isolated from the housing exterior by a seal means mounted in the associated bore. Each seal means includes a seal member elastically deformable to admit a tool to the associated connector assembly via a passage through the seal member.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: March 19, 1991
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: Colleen M. Hoffmann, Donald L. Sandford, Susan M. Walgren, David W. Mayer
  • Soluble covering for cardiac pacing electrode
    Patent number: 4876109
    Abstract: A biocompatible covering, soluble in body fluids, surrounds the fixation helix of an implantable cardiac electrode as the electrode, and its adjoining lead, are inserted intravenously to a selected cardiac chamber. The covering size and shape are selected for protection of blood vessels and other body tissues during insertion, and for exposure of the fixation element shortly after its proper positioning. The covering may be applied to the fixation element by a dip coating process, or formed separately by casting or injection molding, for later attachment to the lead distal end using an adhesive.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: October 24, 1989
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: David W. Mayer, Byron L. Gilman, Susan M. Walgren, June M. Berglund
  • Soluble covering for cardiac pacing electrode
    Patent number: 4827940
    Abstract: A biocompatible covering, soluble in body fluids, surrounds the fixation helix of an implantable cardiac electrode as the electrode, and its adjoining lead, are inserted intravenously to a selected cardiac chamber. The covering size and shape are selected for protection of blood vessels and other body tissues during insertion, and for exposure of the fixation element shortly after its proper positioning. The covering may be applied to the fixation element by a dip coating process, or formed separately by casting or injection molding, for later attachment to the lead distal end using an adhesive.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: May 9, 1989
    Assignee: Cardiac Pacemakers, Inc.
    Inventors: David W. Mayer, Byron L. Gilman, Susan M. Walgren, June M. Berglund