Patents by Inventor Andrew T. Curtis

Andrew T. Curtis 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: 11662416
    Abstract: A method, electromagnet device, and system for reducing a higher order term of a concomitant field in an imaging magnetic field during magnetic resonance imaging is described. The electromagnet system has a first shim coil configured to be driven to generate a first compensation magnetic field during imaging according to a first second-order compensation term, the first compensation magnetic field having a similar amplitude but opposite direction as that of a first second-order concomitant magnetic field.
    Type: Grant
    Filed: December 24, 2021
    Date of Patent: May 30, 2023
    Assignee: SYNAPTIVE MEDICAL INC.
    Inventors: Chad Harris, Geron Bindseil, Andrew T. Curtis
  • Patent number: 11474176
    Abstract: A method, device, and system for reducing inhomogeneity in an imaging magnetic field during magnetic resonance imaging is described. The method includes generating a corrective magnetic field during imaging, the corrective magnetic field having a first magnetic field component and a second magnetic field component with a phase separation therebetween. The first and second components are generated according to a stability parameter decomposed from a stability field that correct an instability identified within the imaging magnetic field.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: October 18, 2022
    Assignee: Synaptive Medical Inc.
    Inventors: Ian Connell, Chad Harris, Geron Bindseil, Andrew T. Curtis
  • Patent number: 11269025
    Abstract: The present disclosure provides a system for and a method of obtaining a magnetic resonance image by performing magnetic resonance imaging (MRI) at multiple slices simultaneously. The method comprises generating a multiband pulse sequence for spin-echo imaging, the pulse sequence comprising a multiband excitation pulse and at least one multiband refocusing pulse, wherein the multiband excitation pulse simultaneously excites multiple bands, wherein the at least one multiband refocusing pulse simultaneously refocuses the multiple bands, and wherein the phases of the bands excited by the multiband excitation pulse and the phases of the bands refocused by the at least one multiband refocusing pulse are set according to a single row of an orthogonal encoding matrix. The multiband excitation pulse and the at least one multiband refocusing pulse collectively form a multiband pulse pair.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: March 8, 2022
    Assignee: SYNAPTIVE MEDICAL INC.
    Inventors: Charles H. Cunningham, Jeffrey A. Stainsby, Andrew T. Curtis
  • Patent number: 11243287
    Abstract: A method, electromagnet device, and system for reducing a higher order term of a concomitant field in an imaging magnetic field during magnetic resonance imaging is described. The electromagnet system has a first shim coil configured to be driven to generate a first compensation magnetic field during imaging according to a first second-order compensation term, the first compensation magnetic field having a similar amplitude but opposite direction as that of a first second-order concomitant magnetic field.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: February 8, 2022
    Assignee: SYNAPTIVE MEDICAL INC.
    Inventors: Chad Harris, Geron Bindseil, Andrew T. Curtis
  • Patent number: 11029377
    Abstract: A method, device, and system for reducing inhomogeneity in an imaging magnetic field during magnetic resonance imaging is described. The method includes generating a corrective magnetic field during imaging, the corrective magnetic field having a first magnetic field component and a second magnetic field component with a phase separation therebetween. The first and second components are generated according to a stability parameter decomposed from a stability field that correct an instability identified within the imaging magnetic field.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: June 8, 2021
    Assignee: Synaptive Medical Inc.
    Inventors: Ian Connell, Chad Harris, Geron Bindseil, Andrew T. Curtis
  • Publication number: 20210063516
    Abstract: A method, device, and system for reducing inhomogeneity in an imaging magnetic field during magnetic resonance imaging is described. The method includes generating a corrective magnetic field during imaging, the corrective magnetic field having a first magnetic field component and a second magnetic field component with a phase separation therebetween. The first and second components are generated according to a stability parameter decomposed from a stability field that correct an instability identified within the imaging magnetic field.
    Type: Application
    Filed: September 3, 2019
    Publication date: March 4, 2021
    Inventors: Ian CONNELL, Chad Harris, Geron Bindseil, Andrew T. Curtis
  • Patent number: 10591556
    Abstract: The present disclosure provides a system for and a method of obtaining a magnetic resonance image by performing magnetic resonance imaging (MRI) at multiple slices simultaneously. The method comprises generating a multiband pulse sequence for spin-echo imaging, the pulse sequence comprising a multiband excitation pulse and at least one multiband refocusing pulse, wherein the multiband excitation pulse simultaneously excites multiple bands, wherein the at least one multiband refocusing pulse simultaneously refocuses the multiple bands, and wherein the phases of the bands excited by the multiband excitation pulse and the phases of the bands refocused by the at least one multiband refocusing pulse are set according to a single row of an orthogonal encoding matrix. The multiband excitation pulse and the at least one multiband refocusing pulse collectively form a multiband pulse pair.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: March 17, 2020
    Assignee: SYNAPTIVE MEDICAL INC.
    Inventors: Charles H. Cunningham, Jeffrey A. Stainsby, Andrew T. Curtis
  • Publication number: 20190128976
    Abstract: The present disclosure provides a system for and a method of obtaining a magnetic resonance image by performing magnetic resonance imaging (MRI) at multiple slices simultaneously. The method comprises generating a multiband pulse sequence for spin-echo imaging, the pulse sequence comprising a multiband excitation pulse and at least one multiband refocusing pulse, wherein the multiband excitation pulse simultaneously excites multiple bands, wherein the at least one multiband refocusing pulse simultaneously refocuses the multiple bands, and wherein the phases of the bands excited by the multiband excitation pulse and the phases of the bands refocused by the at least one multiband refocusing pulse are set according to a single row of an orthogonal encoding matrix. The multiband excitation pulse and the at least one multiband refocusing pulse collectively form a multiband pulse pair.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 2, 2019
    Inventors: Charles H. Cunningham, Jeffrey A. Stainsby, Andrew T. Curtis