Patents by Inventor Margaret F. Yoklavich

Margaret F. Yoklavich 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).

  • Stent delivery method and apparatus
    Patent number: 5593412
    Abstract: The stent delivery method and apparatus uses an elongate sheath having a rounded or tapered distal end portion which has a central opening and which is constructed in a manner that permits the distal end portion to expand easily. The method comprises the steps of: placing a stent on a balloon catheter or a balloon on a balloon guidewire thereby forming a stent on a balloon assembly; placing the stent on a balloon assembly in the elongate sheath having an elongate axis; pushing the sheath and stent on a balloon assembly to a desired site in the lumen of a vessel; positioning the stent on a balloon assembly at the desired site; withdrawing the sheath from the stent on a balloon assembly causing the distal end portion of the sheath to expand to pass over the stent and leaving the stent and balloon at the desired site in the lumen; expanding the balloon and stent to expand the stent to a desired diameter; collapsing the balloon; and, removing the balloon and the sheath from the lumen.
    Type: Grant
    Filed: May 2, 1995
    Date of Patent: January 14, 1997
    Assignee: Cordis Corporation
    Inventors: Susana Martinez, Margaret F. Yoklavich
  • Method of stent delivery through an elongate softenable sheath
    Patent number: 5453090
    Abstract: The stent delivery method and apparatus uses an elongate sheath having a rounded or tapered distal end portion which has a central opening and which is constructed in a manner that permits the distal end portion to expand easily. The method comprises the steps of: placing a stent on a balloon catheter or a balloon on a balloon guidewire thereby forming a stent on a balloon assembly; placing the stent on a balloon assembly in the elongate sheath having an elongate axis; pushing the sheath and stent on a balloon assembly to a desired site in the lumen of a vessel; positioning the stent on a balloon assembly at the desired site; withdrawing the sheath from the stent on a balloon assembly causing the distal end portion of the sheath to expand to pass over the stent and leaving the stent and balloon at the desired site in the lumen; expanding the balloon and stent to expand the stent to a desired diameter; collapsing the balloon; and, removing the balloon and the sheath from the lumen.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: September 26, 1995
    Assignee: Cordis Corporation
    Inventors: Susana Martinez, Margaret F. Yoklavich