Patents by Inventor Steven John Rychnovsky

Steven John Rychnovsky 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).

  • Methods for inhibiting or suppressing stenosis of arteriovenous access fistulas and grafts
    Patent number: 6783541
    Abstract: A method for inhibiting or suppressing stenosis associated with an arteriovenous access. A dosage of photosensitive compound is introduced into the artery or vein. An anastomotic area of the artery or vein is then exposed to a source of light having a wavelength suitable for photoactivating the photosensitive compound for a period of time sufficient to provide a therapeutic effect. A method is also described for the delivery of drugs into the anastomotic site of an AV access to inhibit the formation of stenotic lesions at those sites.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: August 31, 2004
    Assignee: Miravant Medical Technologies, Inc.
    Inventors: W. Patrick Stephens, Steven John Rychnovsky, Jeffrey P. Walker, Heidi Nielsen, Christina Ann Waters, John S. Hill
  • Methods for inhibiting or suppressing stenosis of arteriovenous access fistulas and grafts
    Publication number: 20030100934
    Abstract: A method for inhibiting or suppressing stenosis associated with an arteriovenous access. A dosage of photosensitive compound is introduced into the artery or vein. An anastomotic area of the artery or vein is then exposed to a source of light having a wavelength suitable for photoactivating the photosensitive compound for a period of time sufficient to provide a therapeutic effect. A method is also described for the delivery of drugs into the anastomotic site of an AV access to inhibit the formation of stenotic lesions at those sites.
    Type: Application
    Filed: November 21, 2001
    Publication date: May 29, 2003
    Inventors: W. Patrick Stephens, Steven John Rychnovsky, Jeffrey P. Walker, Heidi Nielsen, Christina Ann Waters, John S. Hill