Patents by Inventor Chris McWilliams

Chris McWilliams 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).

  • Magnetoresistive linear position detection in a radiation therapy system
    Patent number: 11771924
    Abstract: A multileaf collimator includes a plurality of movable leaves for shaping a radiotherapy beam, wherein each leaf is independently movable in a same linear travel direction. Each leaf includes a linear array of magnets disposed on a measurement surface of the leaf and an array of magnetoresistive sensors that is disposed proximate the measurement surfaces of the leaves.
    Type: Grant
    Filed: May 28, 2022
    Date of Patent: October 3, 2023
    Assignee: VARIAN MEDICAL SYSTEMS, INC.
    Inventors: Garrett Weston Landrith, Moussa Najib Iskandar, Michael William Weitzel, Chris McWilliams
  • MAGNETORESISTIVE LINEAR POSITION DETECTION IN A RADIATION THERAPY SYSTEM
    Publication number: 20220362585
    Abstract: A multileaf collimator includes a plurality of movable leaves for shaping a radiotherapy beam, wherein each leaf is independently movable in a same linear travel direction. Each leaf includes a linear array of magnets disposed on a measurement surface of the leaf and an array of magnetoresistive sensors that is disposed proximate the measurement surfaces of the leaves.
    Type: Application
    Filed: May 28, 2022
    Publication date: November 17, 2022
    Applicant: VARIAN MEDICAL SYSTEMS, INC.
    Inventors: Garrett Weston LANDRITH, Moussa Najib ISKANDAR, Michael William WEITZEL, Chris McWILLIAMS
  • Magnetoresistive linear position detection in a radiation therapy system
    Patent number: 11344749
    Abstract: A multileaf collimator includes a plurality of movable leaves for shaping a radiotherapy beam, wherein each leaf is independently movable in a same linear travel direction. Each leaf includes a linear array of magnets disposed on a measurement surface of the leaf and an array of magnetoresistive sensors that is disposed proximate the measurement surfaces of the leaves.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: May 31, 2022
    Assignee: VARIAN MEDICAL SYSTEMS, INC.
    Inventors: Garrett Weston Landrith, Moussa Najib Iskandar, Michael William Weitzel, Chris McWilliams
  • MAGNETORESISTIVE LINEAR POSITION DETECTION IN A RADIATION THERAPY SYSTEM
    Publication number: 20220118286
    Abstract: A multileaf collimator includes a plurality of movable leaves for shaping a radiotherapy beam, wherein each leaf is independently movable in a same linear travel direction. Each leaf includes a linear array of magnets disposed on a measurement surface of the leaf and an array of magnetoresistive sensors that is disposed proximate the measurement surfaces of the leaves.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 21, 2022
    Applicant: VARIAN MEDICAL SYSTEMS, INC.
    Inventors: Garrett Weston LANDRITH, Moussa Najib ISKANDAR, Michael William WEITZEL, Chris McWILLIAMS
  • SYSTEM AND METHOD FOR APPLYING MATERIAL TO A STENT
    Publication number: 20200060813
    Abstract: Methods for applying polymeric material to a stent are disclosed. A mandrel is coupled to a stent body. The stent body comprises an inner surface defining a cavity and an outer surface opposing the internal surface. The stent body also has a length along an axis defined by the mandrel between a first end of the stent body and a second end of the stent body. An electrospun material is applied to at least a portion of the stent external surface and to at least a portion of the mandrel to form a coating sheet. A portion of the coating sheet extends from at least one of the first end or second end of the stent to the mandrel. One or both of the stent and the mandrel are moved to apply at least some of the portion of the coating sheet onto the internal surface of the stent body.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 27, 2020
    Inventors: Paul P. Nguyen, Chris McWilliams, Connor Cady, Cody Jeremiah Kratochvil, Dylan Joseph Kratochvil
  • System and method for applying material to a stent
    Patent number: 10456245
    Abstract: Methods for applying polymeric material to a stent are disclosed. A mandrel is coupled to a stent body. The stent body comprises an inner surface defining a cavity and an outer surface opposing the internal surface. The stent body also has a length along an axis defined by the mandrel between a first end of the stent body and a second end of the stent body. An electrospun material is applied to at least a portion of the stent external surface and to at least a portion of the mandrel to form a coating sheet. A portion of the coating sheet extends from at least one of the first end or second end of the stent to the mandrel. One or both of the stent and the mandrel are moved to apply at least some of the portion of the coating sheet onto the internal surface of the stent body.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: October 29, 2019
    Assignee: Edwards Lifesciences Corporation
    Inventors: Paul P. Nguyen, Chris McWilliams, Connor Cady, Cody Jeremiah Kratochvil, Dylan Joseph Kratochvil
  • SYSTEM AND METHOD FOR APPLYING MATERIAL TO A STENT
    Publication number: 20170325976
    Abstract: Methods for applying polymeric material to a stent are disclosed. A mandrel is coupled to a stent body. The stent body comprises an inner surface defining a cavity and an outer surface opposing the internal surface. The stent body also has a length along an axis defined by the mandrel between a first end of the stent body and a second end of the stent body. An electrospun material is applied to at least a portion of the stent external surface and to at least a portion of the mandrel to form a coating sheet. A portion of the coating sheet extends from at least one of the first end or second end of the stent to the mandrel. One or both of the stent and the mandrel are moved to apply at least some of the portion of the coating sheet onto the internal surface of the stent body.
    Type: Application
    Filed: June 1, 2017
    Publication date: November 16, 2017
    Inventors: Paul P. Nguyen, Chris McWilliams, Connor Cady, Cody Jeremiah Kratochvil, Dylan Joseph Kratochvil