Patents by Inventor Stephen Mohr

Stephen Mohr 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: 10974076
    Abstract: A beam modifier shapes the distribution of a dose delivered to a target by a radiation beam emitted from a beam emitter of a radiotherapy device, particularly a beam that delivers a high radiation dose within a single, short period of time (e.g., less than a second). Elements of the beam modifier (e.g., rods) include material that can block or attenuate the beam. The elements can be dynamically and quickly configured to form an opening or transparent area through which a portion of the beam can pass unimpeded and to present different thicknesses of material to block or attenuate other portions of the beam, in this manner shaping the dose distribution at the target while protecting surrounding tissue.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: April 13, 2021
    Assignee: Varian Medical Systems, Inc
    Inventors: Elizabeth Bowman, Roberto Luevano, Stephen Mohr, Cody Hellstern, Borislav Djurovic
  • Publication number: 20180161600
    Abstract: A beam modifier shapes the distribution of a dose delivered to a target by a radiation beam emitted from a beam emitter of a radiotherapy device, particularly a beam that delivers a high radiation dose within a single, short period of time (e.g., less than a second). Elements of the beam modifier (e.g., rods) include material that can block or attenuate the beam. The elements can be dynamically and quickly configured to form an opening or transparent area through which a portion of the beam can pass unimpeded and to present different thicknesses of material to block or attenuate other portions of the beam, in this manner shaping the dose distribution at the target while protecting surrounding tissue.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 14, 2018
    Inventors: Elizabeth BOWMAN, Roberto LUEVANO, Stephen MOHR, Cody HELLSTERN, Borislav DJUROVIC
  • Patent number: 8760050
    Abstract: An energy switch assembly includes probe components that can undergo and survive elevated temperatures of a bake-out procedure, and drive components that have capabilities of continuous positioning a probe throughout the stroke of the probe. The drive components can be removable from the probe components and replaceable without breaking the vacuum of the accelerator guide assembly.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: June 24, 2014
    Assignee: Varian Medical Systems, Inc.
    Inventors: Stephen Mohr, Christopher Patane, David H. Whittum
  • Patent number: 8761347
    Abstract: A system includes a beam filter positioning device including a plate configured to support one or more beam filters, and one or more axes operable to move the plate relative to a beam line. A control mechanism is coupled to the one or more axes for controlling the movement of the axes and configured to automatically adjust the position of at least one of the one or more beam filters relative to the beam line.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: June 24, 2014
    Assignee: Varian Medical Systems, Inc.
    Inventors: Christopher E. Brown, Steven W. Prince, William A. Strachan, Stanley Mansfield, Stephen Mohr
  • Patent number: 8604450
    Abstract: A system and method are provided for a high resolution radiation treatment system which provide for projecting a field of radiation energy at targeted patient tissue. The system uses a multi-leaf collimator, which is positioned such that a significant clearance is provided between the multi-leaf collimator and the isocenter plane where the targeted tissue is located. The leaves of the multi-leaf collimator are designed to provide for high step resolution in the projected radiation energy shape. Additionally, an embodiment of the system and method herein can provide for a high step resolution in the projected radiation energy shape, and for a dose calculation matrix which has matrix units which coincide with the high step resolution in the projected radiation shape.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: December 10, 2013
    Assignee: Varian Medical Systems, Inc.
    Inventor: Stephen Mohr
  • Publication number: 20120087478
    Abstract: A system includes a beam filter positioning device including a plate configured to support one or more beam filters, and one or more axes operable to move the plate relative to a beam line. A control mechanism is coupled to the one or more axes for controlling the movement of the axes and configured to automatically adjust the position of at least one of the one or more beam filters relative to the beam line.
    Type: Application
    Filed: December 13, 2011
    Publication date: April 12, 2012
    Applicant: Varian Medical Systems, Inc.
    Inventors: Christopher E. Brown, Steven W. Prince, William A. Strachan, Stanley Mansfield, Stephen Mohr
  • Publication number: 20120068087
    Abstract: A system and method are provided for a high resolution radiation treatment system which provide for projecting a field of radiation energy at targeted patient tissue. The system uses a multi-leaf collimator, which is positioned such that a significant clearance is provided between the multi-leaf collimator and the isocenter plane where the targeted tissue is located. The leaves of the multi-leaf collimator are designed to provide for high step resolution in the projected radiation energy shape. Additionally, an embodiment of the system and method herein can provide for a high step resolution in the projected radiation energy shape, and for a dose calculation matrix which has matrix units which coincide with the high step resolution in the projected radiation shape.
    Type: Application
    Filed: November 28, 2011
    Publication date: March 22, 2012
    Applicant: Varian Medical Systems, Inc.
    Inventor: Stephen Mohr
  • Patent number: 8077830
    Abstract: A system includes a beam filter positioning device including a plate configured to support one or more beam filters, and one or more axes operable to move the plate relative to a beam line. A control mechanism is coupled to the one or more axes for controlling the movement of the axes and configured to automatically adjust the position of at least one of the one or more beam filters relative to the beam line.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: December 13, 2011
    Assignee: Varian Medical Systems, Inc.
    Inventors: Christopher E. Brown, Steven W. Prince, William A. Strachan, Stanley Mansfield, Stephen Mohr
  • Patent number: 8067751
    Abstract: A system and method are provided for a high resolution radiation treatment system which provide for projecting a field of radiation energy at targeted patient tissue. The system uses a multi-leaf collimator, which is positioned such that a significant clearance is provided between the multi-leaf collimator and the isocenter plane where the targeted tissue is located. The leaves of the multi-leaf collimator are designed to provide for high step resolution in the projected radiation energy shape. Additionally, an embodiment of the system and method herein can provide for a high step resolution in the projected radiation energy shape, and for a dose calculation matrix which has matrix units which coincide with the high step resolution in the projected radiation shape.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: November 29, 2011
    Assignee: Varian Medical Systems, Inc.
    Inventor: Stephen Mohr
  • Publication number: 20110075815
    Abstract: A system includes a beam filter positioning device including a plate configured to support one or more beam filters, and one or more axes operable to move the plate relative to a beam line. A control mechanism is coupled to the one or more axes for controlling the movement of the axes and configured to automatically adjust the position of at least one of the one or more beam filters relative to the beam line.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Applicant: Varian Medical Systems, Inc.
    Inventors: Christopher E. Brown, Steven W. Prince, William A. Strachan, Stanley Mansfield, Stephen Mohr
  • Publication number: 20110074288
    Abstract: An energy switch assembly includes probe components that can undergo and survive elevated temperatures of a bake-out procedure, and drive components that have capabilities of continuous positioning a probe throughout the stroke of the probe. The drive components can be removable from the probe components and replaceable without breaking the vacuum of the accelerator guide assembly.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Applicant: Varian Medical Systems, Inc.
    Inventors: Stephen Mohr, Christopher Patane, David H. Whittum
  • Publication number: 20090147917
    Abstract: A system and method are provided for a high resolution radiation treatment system which provide for projecting a field of radiation energy at targeted patient tissue. The system uses a multi-leaf collimator, which is positioned such that a significant clearance is provided between the multi-leaf collimator and the isocenter plane where the targeted tissue is located. The leaves of the multi-leaf collimator are designed to provide for high step resolution in the projected radiation energy shape. Additionally, an embodiment of the system and method herein can provide for a high step resolution in the projected radiation energy shape, and for a dose calculation matrix which has matrix units which coincide with the high step resolution in the projected radiation shape.
    Type: Application
    Filed: February 11, 2009
    Publication date: June 11, 2009
    Applicant: Varian Medical Systems, Inc.
    Inventor: Stephen Mohr
  • Patent number: 7507975
    Abstract: A system and method are provided for a high resolution radiation treatment system which provide for projecting a field of radiation energy at targeted patient tissue. The system uses a multi-leaf collimator, which is positioned such that a significant clearance is provided between the multi-leaf collimator and the isocenter plane where the targeted tissue is located. The leaves of the multi-leaf collimator are designed to provide for high step resolution in the projected radiation energy shape. Additionally, an embodiment of the system and method herein can provide for a high step resolution in the projected radiation energy shape, and for a dose calculation matrix which has matrix units which coincide with the high step resolution in the projected radiation shape.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: March 24, 2009
    Assignee: Varian Medical Systems, Inc.
    Inventor: Stephen Mohr
  • Publication number: 20080073591
    Abstract: A system and method are provided for a high resolution radiation treatment system which provide for projecting a field of radiation energy at targeted patient tissue. The system uses a multi-leaf collimator, which is positioned such that a significant clearance is provided between the multi-leaf collimator and the isocenter plane where the targeted tissue is located. The leaves of the multi-leaf collimator are designed to provide for high step resolution in the projected radiation energy shape. Additionally, an embodiment of the system and method herein can provide for a high step resolution in the projected radiation energy shape, and for a dose calculation matrix which has matrix units which coincide with the high step resolution in the projected radiation shape.
    Type: Application
    Filed: October 30, 2006
    Publication date: March 27, 2008
    Inventor: Stephen Mohr