Patents by Inventor John F. Schreiner

John F. Schreiner 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).

  • Guidewire having linear change in stiffness
    Patent number: 8308660
    Abstract: The invention is directed to a guidewire having a distal section with multiple distally tapered core segments with at least two contiguous distally tapering core segments in which the most distal tapered core segment preferably has a greater degree of taper than the proximally contiguous tapered core segment. The invention is also directed to an elongated intracorporeal device, preferably a guidewire or section thereof, that has a core member or the like with a plurality of contiguous tapered segments having taper angles that are configured to produce a linear change in stiffness over a longitudinal section of the device. The device may also have a core section with a continuously changing taper angle to produce a curvilinear profile that preferably is configured to produce a linear change in stiffness of the core over a longitudinal section of the device.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: November 13, 2012
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Wayne E. Cornish, John F. Schreiner, James M. Jacobs, Marc M. Jalisi, Mark T. Richardson, Kent C. B. Stalker, Olin J. Palmer
  • Guidewire having linear change in stiffness
    Patent number: 7972283
    Abstract: The invention is directed to a guidewire having a distal section with multiple distally tapered core segments with at least two contiguous distally tapering core segments in which the most distal tapered core segment preferably has a greater degree of taper than the proximally contiguous tapered core segment. The invention is also directed to an elongated intracorporeal device, preferably a guidewire or section thereof, that has a core member or the like with a plurality of contiguous tapered segments having taper angles that are configured to produce a linear change in stiffness over a longitudinal section of the device. The device may also have a core section with a continuously changing taper angle to produce a curvilinear profile that preferably is configured to produce a linear change in stiffness of the core over a longitudinal section of the device.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: July 5, 2011
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Wayne E. Cornish, John F. Schreiner, James M. Jacobs, Marc M. Jalisi, Mark T. Richardson, Kent C. B. Stalker, Olin J. Palmer