Patents Assigned to NeoVista, Inc.
  • Publication number: 20130046128
    Abstract: A radiotherapy delivery device is provided comprising an elongated applicator having a proximal end and a distal end having a tip. The distal end is adapted to be introduced into a body including a treatment zone to be located adjacent a target tissue. A radiotherapy emitter is provided that is moveable between the proximal end of the applicator and the treatment zone of the applicator. The applicator includes a window to permit visual confirmation of the location of the radiation emitter and the treatment zone.
    Type: Application
    Filed: October 17, 2012
    Publication date: February 21, 2013
    Applicant: NEOVISTA, INC.
    Inventor: NeoVista, Inc.
  • Patent number: 8365721
    Abstract: A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end. A positioning system for the cannula is also disclosed.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: February 5, 2013
    Assignee: NeoVista Inc.
    Inventors: Charles E. Larsen, Richard A. Hillstead, Roelof Trip, Eugene deJuan, Mark S. Humayun, Eberhard Fritz, Rainer Pintaske, Sabine Willenkamp, Gerd T. Phillipps
  • Patent number: 8353812
    Abstract: A handheld radiation delivery system is disclosed that includes a two-part delivery module comprising a reusable portion that contains a radioactive source wire and a disposable portion that includes a drive assembly for moving the radioactive source wire between storage and treatment positions. A disposable applicator tip is provided that includes a cannula for receiving the radioactive source wire when in the treatment position and a mechanism for limiting the number of uses of the device. A handheld cable actuator is operatively connected to the disposable portion of the handpiece to impart motion to the source wire.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: January 15, 2013
    Assignee: NeoVista, Inc.
    Inventors: Bill Vermeere, William Metzger, Jay Daulton, Benjamin Woodward, Mark Diel, David Beaulieu, Kristopher Konawalik, Christopher Kelly, Guang Gun (Max) Chen
  • Patent number: 8292795
    Abstract: Methods and apparatus for intraocular brachytherapy are disclosed in which a cannula is introduced into the eye for delivery of radiation to a target tissue. Techniques for properly locating the cannula with respect to the target tissue, for protecting non-target tissue, for regulating heat generated by x-ray emitters, and for combining therapies are disclosed.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: October 23, 2012
    Assignee: NeoVista, Inc.
    Inventors: Richard A Hillstead, Charles E. Larsen, Roelof Trip, Cory S. Anderson, Eberhard Fritz, Rainer Pintaske
  • Patent number: 7951060
    Abstract: A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end. A positioning system for the cannula is also disclosed.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: May 31, 2011
    Assignee: NeoVista, Inc.
    Inventors: Charles E. Larsen, Richard A. Hillstead, Roelof Trip, Eugene de Juan, Mark Humayun, Eberhard Fritz, Rainer Pintaske
  • Patent number: 7803103
    Abstract: Methods and apparatus for intraocular brachytherapy are disclosed in which a cannula is introduced into the eye for delivery of radiation to a target tissue. Techniques for properly locating the cannula with respect to the target tissue, for protecting non-target tissue, for regulating heat generated by x-ray emitters, and for combining therapies are disclosed.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: September 28, 2010
    Assignee: NeoVista Inc.
    Inventors: Richard A Hillstead, Charles E. Larsen, Roelof Trip, Cory S. Anderson
  • Patent number: 7803102
    Abstract: A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end. A positioning system for the cannula is also disclosed.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: September 28, 2010
    Assignee: NeoVista, Inc.
    Inventors: Charles E. Larsen, Richard A. Hillstead, Roelof Trip, Eugene deJuan, Mark S. Humayun, Eberhard Fritz, Rainer Pintaske, Sabine Willenkamp, Gerd T. Phillipps
  • Patent number: 7744520
    Abstract: A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end. A positioning system for the cannula is also disclosed.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: June 29, 2010
    Assignee: NeoVista, Inc.
    Inventors: Charles E. Larsen, Richard A. Hillstead, Roelof Trip, Eugene de Juan, Mark Humayun, Eberhard Fritz, Rainer Pintaske
  • Patent number: 7563222
    Abstract: A method for performing intraocular brachytherapy and an apparatus for performing the same is disclosed. The apparatus preferably comprises a hand-held delivery device that advances a radiation source into an associated cannula or probe that is positioned adjacent the target tissue. The handpiece provides for shielded storage of the radiation source when retracted from the cannula and includes a slider mechanism for advancing and retracting the radiation source. The radiation source is mounted to a wire that has a flexible distal end and a relatively stiffer proximal end.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: July 21, 2009
    Assignee: NeoVista, Inc.
    Inventors: Charles E. Larsen, Richard A. Hillstead, Roelof Trip, Eugene deJuan, Mark Humayun, Eberhard Fritz, Rainer Pintaske