Patents by Inventor Stephen L. Spotts

Stephen L. Spotts 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: 9737733
    Abstract: The invention comprises a system for determining the state of a charged particle beam, such as beam position, intensity, and/or energy. For example, the charged particle beam state is determined at or about a patient undergoing charged particle cancer therapy using one or more film layers designed to emit photons upon passage of a charged particle beam, which yields information on position and/or intensity of the charged particle beam. The emitted photons are used to calculate position of the treatment beam in imaging and/or during tumor treatment. Optionally and preferably, updating a tomography map uses the same hardware with the same alignment used for cancer therapy at proximately the same time.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 22, 2017
    Inventors: W. Davis Lee, Stephen L. Spotts, Susan L. Michaud
  • Publication number: 20160354616
    Abstract: A scintillation material is longitudinally packaged in a circumferentially surrounding sheath, where the sheath has a lower index of refraction than the scintillation material, to form a scintillation optic or scintillation fiber optic. The scintillation material yields secondary photons upon passage of a charged particle beam, such as a positively charged residual particle beam having transmitted through a sample. The internally generated secondary photons within the sheath are guided to a detector element by the difference in index of refraction. Multiple scintillation optics are assembled to form a two-dimensional scintillation array coupled to a two-dimensional detector array, such as for use in determination of state of the residual charged particle beam, determination of an exit point of the particle beam from the sample, path of the treatment beam, and/or tomographic imaging.
    Type: Application
    Filed: August 17, 2016
    Publication date: December 8, 2016
    Inventors: W. Davis Lee, Mark R Amato, Stephen L. Spotts, James P. Bennett
  • Publication number: 20160317838
    Abstract: The invention comprises a patient specific tray insert removably inserted into a tray frame to form a beam control tray assembly, which is removably inserted into a slot of a tray receiver assembly proximate a gantry nozzle of a charged particle cancer treatment system. Optionally, multiple tray inserts, each used to control a different beam state parameter, are inserted into corresponding slots of the tray receiver assembly where the multiple inserts are used to control beam intensity, shape, focus, and/or energy. The beam control tray assembling includes an identifier, such as an electromechanical identifier, of the particular insert type, which is communicated to a main controller, such as via the tray receiver assembly along with slot position and/or patient information.
    Type: Application
    Filed: July 11, 2016
    Publication date: November 3, 2016
    Inventors: Susan L. Michaud, Daniel J. Raymond, Stephen L. Spotts
  • Publication number: 20160287907
    Abstract: The invention comprises a system for controlling a charged particle beam shape and direction relative to a controlled and dynamically positioned patient and/or an imaging surface, such as a scintillation plate of a tomography system and/or a first two-dimensional imaging system coupled to a second two-dimensional imaging system. Multiple interlinked beam/patient/imaging control stations allow safe zone operation and clear interaction with the charged particle beam system and the patient. Both treatment and imaging are facilitated using automated sequences controlled with a work-flow control system.
    Type: Application
    Filed: June 7, 2016
    Publication date: October 6, 2016
    Inventors: Susan L. Michaud, Stephen L. Spotts, James P. Bennett, W. Davis Lee
  • Publication number: 20160287908
    Abstract: The invention comprises a positively charged particle based cancer therapy system integrated with at least one off-axis imaging system, where elements of the off-axis imaging system and the cancer therapy system are co-positioned/co-rotated with a gantry. The imaging apparatus optionally functions with a tomography system using the positively charged particles of the cancer therapy system for enhanced patient/tumor imaging at and/or prior to a time of treatment.
    Type: Application
    Filed: June 14, 2016
    Publication date: October 6, 2016
    Inventors: James P. Bennett, Stephen L. Spotts, W. Davis Lee, Susan L. Michaud
  • Publication number: 20160279443
    Abstract: The invention comprises a system for using common injector, accelerator, beam transport, and/or imaging system elements for both imaging, such as tomographic imaging, and positively charged particle cancer therapy. For example, a common output nozzle of both a tomographic imaging system and the charged particle cancer therapy system is maintained on an opposite side of the patient from an imaging surface, such as a detection plate and/or a scintillation plate, where the imaging surface is used in tomographic imaging and/or during cancer treatment with the positively charged particles to confirm position and/or orientation of the tumor. Common beam state determination systems, such as charged particle position, direction, energy, and/or intensity determination systems are used to enhance both the imaging and cancer treatment system.
    Type: Application
    Filed: June 6, 2016
    Publication date: September 29, 2016
    Inventors: James P. Bennett, Stephen L. Spotts, Susan L. Michaud, W. Davis Lee
  • Publication number: 20160282478
    Abstract: The invention comprises a system for redundantly determining the state of a charged particle beam, such as beam position, direction, energy, and/or intensity. For example, the charged particle beam state is determined: (1) in an extraction system from a synchrotron, (2) in a charged particle beam transport path, and/or (3) at or about a patient undergoing charged particle cancer therapy using one or more film layers designed to emit photons upon passage of a charged particle beam, which yields information on position and/or intensity of the charged particle beam. The emitted photons are used to calculate position, direction, and/or intensity of the treatment beam in imaging and/or during tumor treatment.
    Type: Application
    Filed: June 1, 2016
    Publication date: September 29, 2016
    Inventors: Stephen L. Spotts, W. Davis Lee, James P. Bennett
  • Publication number: 20160271424
    Abstract: The invention comprises a system for determining the state of a charged particle beam, such as beam position, intensity, and/or energy. For example, the charged particle beam state is determined at or about a patient undergoing charged particle cancer therapy using one or more film layers designed to emit photons upon passage of a charged particle beam, which yields information on position and/or intensity of the charged particle beam. The emitted photons are used to calculate position of the treatment beam in imaging and/or during tumor treatment. Optionally and preferably, updating a tomography map uses the same hardware with the same alignment used for cancer therapy at proximately the same time.
    Type: Application
    Filed: May 27, 2016
    Publication date: September 22, 2016
    Inventors: W. Davis Lee, Stephen L. Spotts, Susan L. Michaud
  • Publication number: 20160250503
    Abstract: The invention relates to a method and apparatus for control of a charged particle cancer therapy system. A treatment delivery control system is used to directly control multiple subsystems of the cancer therapy system without direct communication between selected subsystems, which enhances safety, simplifies quality assurance and quality control, and facilitates programming. For example, the treatment delivery control system directly controls one or more of: an imaging system, a positioning system, an injection system, a radio-frequency quadrupole system, a ring accelerator or synchrotron, an extraction system, a beam line, an irradiation nozzle, a gantry, a display system, a targeting system, and a verification system. Generally, the control system integrates subsystems and/or integrates output of one or more of the above described cancer therapy system elements with inputs of one or more of the above described cancer therapy system elements.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 1, 2016
    Inventors: Vladimir Balakin, Stephen L. Spotts
  • Publication number: 20160199670
    Abstract: The invention comprises a system for patient specific control of charged particles in a charged particle beam path using one or more trays inserted into the charged particle beam path, such as at the exit port of a gantry nozzle in close proximity to a tumor of a patient. Each tray holds an insert, such as a patient specific insert for controlling the energy, focus depth, and/or shape of the charged particle beam. Examples of inserts include a range shifter, a compensator, an aperture, a ridge filter, and a blank. Trays in a tray assembly are optionally retracted into an output nozzle of a charged particle cancer treatment system. Optionally and preferably, each tray communicates a held and positioned insert to a main controller of the charged particle cancer therapy system.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 14, 2016
    Inventors: Susan L. Michaud, Stephen L. Spotts
  • Patent number: 8907309
    Abstract: The invention relates to a method and apparatus for control of a charged particle cancer therapy system. A treatment delivery control system is used to directly control multiple subsystems of the cancer therapy system without direct communication between selected subsystems, which enhances safety, simplifies quality assurance and quality control, and facilitates programming. For example, the treatment delivery control system directly controls one or more of: an imaging system, a positioning system, an injection system, a radio-frequency quadrupole system, a ring accelerator or synchrotron, an extraction system, a beam line, an irradiation nozzle, a gantry, a display system, a targeting system, and a verification system. Generally, the control system integrates subsystems and/or integrates output of one or more of the above described cancer therapy system elements with inputs of one or more of the above described cancer therapy system elements.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 9, 2014
    Inventor: Stephen L. Spotts
  • Publication number: 20140257011
    Abstract: The invention relates to a method and apparatus for control of a charged particle cancer therapy system. A treatment delivery control system is used to directly control multiple subsystems of the cancer therapy system without direct communication between selected subsystems, which enhances safety, simplifies quality assurance and quality control, and facilitates programming. For example, the treatment delivery control system directly controls one or more of: an imaging system, a positioning system, an injection system, a radio-frequency quadrupole system, a ring accelerator or synchrotron, an extraction system, a beam line, an irradiation nozzle, a gantry, a display system, a targeting system, and a verification system. Generally, the control system integrates subsystems and/or integrates output of one or more of the above described cancer therapy system elements with inputs of one or more of the above described cancer therapy system elements.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Inventor: Stephen L. Spotts