Patents by Inventor Michael J. Hadsell

Michael J. Hadsell 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).

  • Trajectory optimization in radiotherapy using sectioning
    Patent number: 10792513
    Abstract: A radiation therapy treatment method includes providing a patient model, dosimetric constraints, delivery motion constraints, and delivery coordinate space of a radiation delivery device, where the delivery coordinate space is represented as a mesh with vertices connected by edges, where the vertices correspond to directions of a beam eye view (BEV) of the radiation delivery device. BEV region connectivity manifolds are constructed from the patient model, the dosimetric constraints, the delivery coordinate space, and existing beam trajectories, wherein each of the BEV region connectivity manifolds represents connections between contiguous 2D target regions. Beam trajectories are selected based on region connectedness information in the BEV region connectivity manifolds, the dosimetric constraints, the delivery motion constraints, and the existing beam trajectories. Radiation is delivered using the radiation delivery device in accordance with the selected beam trajectories.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: October 6, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Karl Bush, Michael J. Hadsell, Christopher Locke, Lei Xing
  • Trajectory Optimization in Radiotherapy Using Sectioning
    Publication number: 20200197724
    Abstract: A radiation therapy treatment method includes providing a patient model, dosimetric constraints, delivery motion constraints, and delivery coordinate space of a radiation delivery device, where the delivery coordinate space is represented as a mesh with vertices connected by edges, where the vertices correspond to directions of a beam eye view (BEV) of the radiation delivery device. BEV region connectivity manifolds are constructed from the patient model, the dosimetric constraints, the delivery coordinate space, and existing beam trajectories, wherein each of the BEV region connectivity manifolds represents connections between contiguous 2D target regions. Beam trajectories are selected based on region connectedness information in the BEV region connectivity manifolds, the dosimetric constraints, the delivery motion constraints, and the existing beam trajectories. Radiation is delivered using the radiation delivery device in accordance with the selected beam trajectories.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: Karl Bush, Michael J. Hadsell, Christopher Locke, Lei Xing
  • Trajectory optimization in radiotherapy using sectioning
    Patent number: 10576300
    Abstract: A radiation therapy treatment method includes providing a patient model, dosimetric constraints, delivery motion constraints, and delivery coordinate space of a radiation delivery device, where the delivery coordinate space is represented as a mesh with vertices connected by edges, where the vertices correspond to directions of a beam eye view (BEV) of the radiation delivery device. BEV region connectivity manifolds are constructed from the patient model, the dosimetric constraints, the delivery coordinate space, and existing beam trajectories, wherein each of the BEV region connectivity manifolds represents connections between contiguous 2D target regions. Beam trajectories are selected based on region connectedness information in the BEV region connectivity manifolds, the dosimetric constraints, the delivery motion constraints, and the existing beam trajectories. Radiation is delivered using the radiation delivery device in accordance with the selected beam trajectories.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 3, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Karl Bush, Michael J. Hadsell, Christopher Locke, Lei Xing
  • Trajectory Optimization in Radiotherapy Using Sectioning
    Publication number: 20190091485
    Abstract: A radiation therapy treatment method includes providing a patient model, dosimetric constraints, delivery motion constraints, and delivery coordinate space of a radiation delivery device, where the delivery coordinate space is represented as a mesh with vertices connected by edges, where the vertices correspond to directions of a beam eye view (BEV) of the radiation delivery device. BEV region connectivity manifolds are constructed from the patient model, the dosimetric constraints, the delivery coordinate space, and existing beam trajectories, wherein each of the BEV region connectivity manifolds represents connections between contiguous 2D target regions. Beam trajectories are selected based on region connectedness information in the BEV region connectivity manifolds, the dosimetric constraints, the delivery motion constraints, and the existing beam trajectories. Radiation is delivered using the radiation delivery device in accordance with the selected beam trajectories.
    Type: Application
    Filed: November 28, 2018
    Publication date: March 28, 2019
    Inventors: Karl Bush, Michael J. Hadsell, Christopher Locke, Lei Xing