Patents by Inventor James F. Dempsey
James F. Dempsey 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).
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Patent number: 11931602Abstract: A system including a diagnostic-quality CT scanner for imaging a patient, the diagnostic-quality CT scanner having an imaging isocenter and a radiation therapy device positioned adjacent the diagnostic-quality CT scanner, the radiation therapy device including a gantry carrying a radiation therapy beam source and having a radiation therapy isocenter separate from the imaging isocenter of the diagnostic-quality CT scanner. The system including a couch configured to position the patient for imaging and for radiation therapy by translating the patient between the diagnostic quality CT scanner and the radiation therapy device.Type: GrantFiled: April 9, 2021Date of Patent: March 19, 2024Assignee: Viewray Technologies, Inc.Inventors: Iwan Kawrykow, Thomas Chmielewski, James F. Dempsey
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Patent number: 11892523Abstract: Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.Type: GrantFiled: June 23, 2022Date of Patent: February 6, 2024Assignee: VIEWRAY TECHNOLOGIES, INC.Inventor: James F. Dempsey
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Patent number: 11768257Abstract: Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.Type: GrantFiled: June 23, 2022Date of Patent: September 26, 2023Assignee: VIEWRAY TECHNOLOGIES, INC.Inventor: James F. Dempsey
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Patent number: 11741960Abstract: Exemplary embodiments of restroom monitoring systems having a virtual assistants includes a communications gateway located in a restroom. The communications gateway having a processor, memory, short range communications circuitry, long range communications circuitry, a microphone and a speaker. The communications gateway containing logic for listening for a wake up word and upon detecting a wake up word, capturing a request, logic for processing the request to determine what request is being requested, logic for verifying the request with the requester, and one of a plurality of wave files and a voice synthesizer. The system further includes one or more dispensers located in the restroom. The one or more dispensers having short range communications circuitry for communicating status or product level to the communications gateway.Type: GrantFiled: December 15, 2021Date of Patent: August 29, 2023Assignee: GOJO Industries, Inc.Inventors: Joseph S. Kanfer, Jackson W. Wegelin, Jason M. Slater, James F. Dempsey, April Bertram, Sarah E. Kynkor
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Patent number: 11642040Abstract: A radiofrequency receive coil assembly can include a first conductive loop and a second conductive loop electrically connected at a node. The first and second conductive loops can extend into a treatment beam region of the radio frequency receive coil assembly through which one or more beams of ionizing radiation pass. The first conductive loop and the second conductive loop can overlap each other to provide electromagnetic isolation and/or can use a common conductor combined with a shared capacitor to provide electromagnetic isolation, with the shared capacitor or other electrical components, as well as any conductive loop overlaps, being positioned outside of the treatment beam region. These features can, among other possible advantages, minimize and homogenize attenuation of the beams of ionizing radiation by the radiofrequency receive coil assembly.Type: GrantFiled: June 11, 2021Date of Patent: May 9, 2023Assignee: VIEWRAY TECHNOLOGIES, INC.Inventors: Thomas Chmielewski, James F. Dempsey
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Publication number: 20230125842Abstract: Systems, methods, and computer software relating to gating using non-parallel imaging planes, determining accumulated dose to tissues during radiotherapy with actual beam delivery information, stopping/adjusting/reoptimizing therapy based on such accumulated doses and the generation and use of prognostic motion models and prognostic-motion adapted radiation treatment plans are disclosed.Type: ApplicationFiled: October 19, 2022Publication date: April 27, 2023Applicant: ViewRay Technologies, Inc.Inventors: James F. Dempsey, Iwan Kawrykow
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Publication number: 20230125812Abstract: Systems, methods, and computer software are disclosed that allow the automatic recalling of imaging parameters from computer memory for controlling an MRI system to perform treatment-day scans of a patient on a treatment couch in a radiotherapy system, prior to treatment. The treatment-day scans can be automatically initialized and the MRI system can then be controlled to perform the treatment-day scans according to the recalled imaging parameters. Reoptimized radiation treatment plan(s) can be automatically generated and predicted doses to anatomical structures of the patient based on the plan(s) can be displayed. Clinicians can be enabled to perform numerous reoptimization tasks simultaneously through parallel workflow interfaces and then a radiation therapy device can be controlled to deliver radiation according to a selected radiation treatment plan.Type: ApplicationFiled: October 19, 2022Publication date: April 27, 2023Applicant: ViewRay Technologies, Inc.Inventors: James F. Dempsey, Iwan Kawrykow
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Patent number: 11628314Abstract: Magnetic resonance (MR) guided radiation therapy (MRgRT) enables control over the delivery of radiation based on patient motion indicated by MR imaging (MRI) images captured during radiation delivery. A method for MRgRT includes: simultaneously using one or more radiation therapy heads to deliver radiation and an MRI system to perform MRI; using a processor to determine whether one or more gates are triggered based on at least a portion of MRI images captured during the delivery of radiation; and in response to determining that one or more gates are triggered based on at least a portion of the MRI images captured during the delivery of radiation, suspending the delivery of radiation.Type: GrantFiled: January 7, 2021Date of Patent: April 18, 2023Assignee: VIEWRAY TECHNOLOGIES, INC.Inventors: James F. Dempsey, Iwan Kawrykow
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Patent number: 11612764Abstract: Systems and methods for the delivery of linear accelerator radiotherapy in conjunction with magnetic resonance imaging in which components of a linear accelerator may be placed in shielding containers around a gantry, may be connected with RF waveguides, and may employ various systems and methods for magnetic and radio frequency shielding.Type: GrantFiled: August 9, 2021Date of Patent: March 28, 2023Assignee: VIEWRAY TECHNOLOGIES, INC.Inventors: James F. Dempsey, Shmaryu M. Shvartsman
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Publication number: 20230017149Abstract: A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MM magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac.Type: ApplicationFiled: September 20, 2022Publication date: January 19, 2023Applicant: ViewRay Technologies, Inc.Inventors: Shmaryu M. Shvartsman, Gordon D. DeMeester, James F. Dempsey, John Lester Patrick
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Patent number: 11497937Abstract: A device and a process for performing high temporal- and spatial-resolution MR imaging of the anatomy of a patient during intensity modulated radiation therapy (IMRT) to directly measure and control the highly conformal ionizing radiation dose delivered to the patient for the treatment of diseases caused by proliferative tissue disorders. This invention combines the technologies of open MRI, multileaf-collimator or compensating filter-based IMRT delivery, and cobalt teletherapy into a single co-registered and gantry mounted system.Type: GrantFiled: June 12, 2020Date of Patent: November 15, 2022Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventor: James F. Dempsey
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Publication number: 20220334199Abstract: Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.Type: ApplicationFiled: June 23, 2022Publication date: October 20, 2022Applicant: ViewRay Technologies, Inc.Inventor: James F. Dempsey
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Publication number: 20220334198Abstract: Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.Type: ApplicationFiled: June 23, 2022Publication date: October 20, 2022Applicant: ViewRay Technologies, Inc.Inventor: James F. Dempsey
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Publication number: 20220305289Abstract: Particle radiation therapy and planning utilizing magnetic resonance imaging (MRI) data. Radiation therapy prescription information and patient MRI data can be received and a radiation therapy treatment plan can be determined for use with a particle beam. The treatment plan can utilize the radiation therapy prescription information and the patient MRI data to account for interaction properties of soft tissues in the patient through which the particle beam passes. Patient MRI data may be received from a magnetic resonance imaging system integrated with the particle radiation therapy system. MRI data acquired during treatment may also be utilized to modify or optimize the particle radiation therapy treatment.Type: ApplicationFiled: June 3, 2022Publication date: September 29, 2022Applicant: ViewRay Technologies, Inc.Inventors: James F. Dempsey, Shmaryu M. Shvartsman, Iwan Kawrykow
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Patent number: 11452463Abstract: A radiation therapy system comprises a magnetic resonance imaging (MRI) system combined with an irradiation system, which can include one or more linear accelerators (linacs) that can emit respective radiation beams suitable for radiation therapy. The MRI system includes a split magnet system, comprising first and second main magnets separated by gap. A gantry is positioned in the gap between the main MRI magnets and supports the linac(s) of the irradiation system. The gantry is rotatable independently of the MRI system and can angularly reposition the linac(s). Shielding can also be provided in the form of magnetic and/or RF shielding. Magnetic shielding can be provided for shielding the linac(s) from the magnetic field generated by the MRI magnets. RF shielding can be provided for shielding the MRI system from RF radiation from the linac.Type: GrantFiled: February 11, 2021Date of Patent: September 27, 2022Assignee: VIEWRAY TECHNOLOGIES, INC.Inventors: Shmaryu M. Shvartsman, Gordon D. DeMeester, James F. Dempsey, John Lester Patrick
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Publication number: 20220218223Abstract: Reference data relating to a portion of a patient anatomy during patient motion can be acquired from a magnetic resonance imaging system (MRI) to develop a patient motion library. During a time of interest, tracking data is acquired that can be related to the reference data. Partial volumetric data is acquired during the time of interest and at approximately the same time as the acquisition of the tracking data. A volumetric image of patient anatomy that represents a particular motion state can be constructed from the acquired partial volumetric data and acquired tracking data.Type: ApplicationFiled: March 28, 2022Publication date: July 14, 2022Applicant: ViewRay Technologies, Inc.Inventors: Iwan Kawrykow, Georgi Gerganov, James F. Dempsey
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Patent number: 11378629Abstract: Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.Type: GrantFiled: June 22, 2017Date of Patent: July 5, 2022Assignee: VIEWRAY TECHNOLOGIES, INC.Inventor: James F. Dempsey
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Patent number: 11351398Abstract: Particle radiation therapy and planning utilizing magnetic resonance imaging (MRI) data. Radiation therapy prescription information and patient MRI data can be received and a radiation therapy treatment plan can be determined for use with a particle beam. The treatment plan can utilize the radiation therapy prescription information and the patient MRI data to account for interaction properties of soft tissues in the patient through which the particle beam passes. Patient MRI data may be received from a magnetic resonance imaging system integrated with the particle radiation therapy system. MRI data acquired during treatment may also be utilized to modify or optimize the particle radiation therapy treatment.Type: GrantFiled: September 13, 2019Date of Patent: June 7, 2022Assignee: VIEWRAY TECHNOLOGIES, INC.Inventors: James F. Dempsey, Shmaryu M. Shvartsman, Iwan Kawrykow
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Publication number: 20220130383Abstract: Exemplary embodiments of restroom monitoring systems having a virtual assistants includes a communications gateway located in a restroom. The communications gateway having a processor, memory, short range communications circuitry, long range communications circuitry, a microphone and a speaker. The communications gateway containing logic for listening for a wake up word and upon detecting a wake up word, capturing a request, logic for processing the request to determine what request is being requested, logic for verifying the request with the requester, and one of a plurality of wave files and a voice synthesizer. The system further includes one or more dispensers located in the restroom. The one or more dispensers having short range communications circuitry for communicating status or product level to the communications gateway.Type: ApplicationFiled: December 15, 2021Publication date: April 28, 2022Inventors: Joseph S. Kanfer, Jackson W. Wegelin, Jason M. Slater, James F. Dempsey, April Bertram, Sarah E. Kynkor
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Publication number: 20220113360Abstract: A magnetic resonance imaging (MRI) system having a resistive, solenoidal electromagnet for whole-body MRI may include ferromagnetic material within an envelope of the electromagnet. The system can be configured to have a field strength of at least 0.05 Tesla and its main electromagnetic field can be generated by layers of conductors instead of bundles. Certain electromagnet designs may be fabricated using non-metallic formers, such as fiberglass, and can be constructed to form a rigid object with the layers of conductors by fixing all together with an epoxy. The electromagnet may be configured to have two separated halves, which may be held apart by a fixation structure such as carbon fiber. The power supply for certain electromagnets herein may have current fluctuations, at frequencies of 180 Hz or above, of at least one part per ten thousand without requiring an additional current filter.Type: ApplicationFiled: December 22, 2021Publication date: April 14, 2022Applicant: ViewRay Technologies, Inc.Inventors: James F. DEMPSEY, Massimo DAL FORNO, Shmaryu M. SHVARTSMAN, David L. RAYNER