Patents by Inventor Youri G. Popowski

Youri G. Popowski 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).

  • System and method for intravascular ionizing tandem radiation therapy
    Patent number: 6416457
    Abstract: A system for intravascular ionizing radiation therapy including a radiation device and a guide wire having radiopaque markers to facilitate precise repositioning of the radiation source along the length of the treatment site. The radiopaque markers are separated by a distance L, which corresponds to the distance between the 50% dose points in the dose fall-off regions. This produces partial dose overlap when the radioactive source is positioned in tandem adjacent each radiopaque marker. Preferably, only the dose fall-off regions overlap thereby providing more uniform and complete radiation exposure along the length of the treatment site.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: July 9, 2002
    Assignee: SciMed Life Systems, Inc.
    Inventors: Michael J. Urick, Vitali E. Verin, Youri G. Popowski
  • Irradiating filament and method of making same
    Patent number: 6146322
    Abstract: A filament for irradiating a living body has a core material capable of irradiating radioactive radiation clad in a tubular casing of protective material different from the material forming the core. The materials forming the core and casing have a purity not less than 99.5 atomic percent and a grain size not exceeding 30 .mu.m and the outer diameter of the filament is not less than 80 .mu.m.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: November 14, 2000
    Assignee: Schneider (Europe) AG
    Inventors: Igor I. Papirov, Anatolij I. Pikalov, Vladimir S. Shokurov, Sergej V. Sivtzov, Youri G. Popowski, Vitali E. Verin