Patents by Inventor Lawrence R. Heyn

Lawrence R. Heyn 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).

  • Patent number: 5201757
    Abstract: An apparatus for deploying a radially self-expanding stent includes proximal and distal sleeves respectively containing proximal and distal end portions of the stent in a reduced radius delivery configuration. The sleeves can abut one another and thus contain the entire length of the stent, or may be used in combination with an outer catheter surrounding the sleeves and containing the medial region of the stent. In either event, once the stent and sleeves are positioned at the intended fixation site, the sleeves are moved axially with respect to one another to permit radial self-expansion of the stent only over its medial region, while the sleeves continue to contain the axially outward regions of the stent. Eventually, upon sufficient movement of the sleeves axially relative to one another, the stent becomes totally free of the sleeves, resulting in radial expansion over the entire stent length.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: April 13, 1993
    Assignee: Schneider (USA) Inc.
    Inventors: Lawrence R. Heyn, Liann M. Johnson, Matthew T. Yurek, Peter A. Basile, Robert L. Berger