Patents by Inventor Johannes N. Stahl

Johannes N. Stahl 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: 10857391
    Abstract: A method may include acquiring a first image including a target point and a first reference point, the target point corresponding to at least one part of a subject, the first reference point corresponding to a first marker disposed on the couch of the medical device; determining a first spatial position of the first marker, the first spatial position corresponding to a first working position of the couch; determining a first spatial position of the at least one part of the subject based on the first image and the first spatial position of the first marker; determining a second spatial position of the first marker, the second spatial position corresponding to a second working position of the couch; determining a second spatial position of the at least one part of the subject based on the second spatial position of the first marker and the first spatial position of the at least one part of the subject.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: December 8, 2020
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Johannes N Stahl, Supratik Bose, Li Wang
  • Patent number: 10441816
    Abstract: A radiation therapy medical apparatus is disclosed. The medical apparatus comprises: a base; a cylindrical gantry, peripherally and rotatably supported by the base; a radiation therapy assembly, comprising an arm and a radiation head, wherein one end of the arm is fixed to a first position on a first side of the gantry and the other end thereof is extended outwardly, and the radiation head is fixed to the other end of the arm; an imaging assembly, mounted to a second side of the gantry opposite to the first side, and configured to be a first balanced weight part for balancing the radiation therapy assembly; and a counterbalance, fixed to the second side of the gantry, and configured to cooperate with the imaging assembly to prevent the gantry from turnover under action of the radiation therapy assembly and configured to dynamically balance with the radiation therapy assembly with respect to a rotation axis of the gantry.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: October 15, 2019
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Jian Liu, Jian Zhang, Yuelin Shao, Xiaolong Liu, Jonathan S Maltz, Johannes N Stahl
  • Publication number: 20190175942
    Abstract: A method may include acquiring a first image including a target point and a first reference point, the target point corresponding to at least one part of a subject, the first reference point corresponding to a first marker disposed on the couch of the medical device; determining a first spatial position of the first marker, the first spatial position corresponding to a first working position of the couch; determining a first spatial position of the at least one part of the subject based on the first image and the first spatial position of the first marker; determining a second spatial position of the first marker, the second spatial position corresponding to a second working position of the couch; determining a second spatial position of the at least one part of the subject based on the second spatial position of the first marker and the first spatial position of the at least one part of the subject.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 13, 2019
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Johannes N STAHL, Supratik BOSE, Li WANG
  • Patent number: 9974980
    Abstract: A radiation therapy medical apparatus is disclosed. The medical apparatus includes a base, a cylindrical gantry peripherally and rotatably supported on the base, a first medical device assembly fixed to a first side of the gantry, a cylinder fixed to a second side of the gantry, the gantry disposed between the first medical device and the cylinder, a drag chain carrier comprising a carrier body surrounding the cylinder and defining an annular track, a drag chain, arranged within the annular track, wherein a first end of the drag chain is fixed to the cylinder and a second end is fixed to the cylindrical carrier body, and a cable supported by the drag chain, wherein a first end of the cable is electrically connected to the first medical device assembly.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: May 22, 2018
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Jian Liu, Jian Zhang, Yuelin Shao, Xiaolong Liu, Jonathan S Maltz, Johannes N Stahl
  • Patent number: 9974496
    Abstract: A medical apparatus is disclosed. The medical apparatus comprises a base, a support assembly and a patient support. The support assembly includes a first support rotatably mounted to the base, a second support movably mounted to the first support to move along a first horizontal direction, a third support, a height adjustment mechanism disposed between the second support and the third support such that the height of the third support with respect to the second support is adjustable, and a fourth support movably mounted to the third support to move along a second horizontal direction perpendicular to the first horizontal direction. The patient support is movably mounted to the fourth support to move along the first horizontal direction.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: May 22, 2018
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Jian Liu, Jian Zhang, Yuelin Shao, Xiaolong Liu, Jonathan S Maltz, Johannes N Stahl
  • Publication number: 20170354393
    Abstract: A system, medium, and method including obtaining a plurality of positions for multiple components defined by a plan; obtaining a set of constraints that express limitations for the multiple components at the plurality of positions, the constraints being applicable to a plan where the multiple components synchronously change their positions with time to traverse a prescribed sequence of the plurality of positions, at least one of the multiple components being further constrained to change its position over time by staying within a predefined tolerance to a predefined smooth function of position over time between different positions; determining a trajectory of position and a minimum duration in which the multiple components completely synchronously traverse the prescribed sequence of positions while satisfying the constraints for the multiple components; and generating a record of the determined trajectory of position and the minimum duration for the plurality of components.
    Type: Application
    Filed: June 14, 2016
    Publication date: December 14, 2017
    Inventors: Supratik BOSE, Johannes N. STAHL, Jonathan S. MALTZ
  • Publication number: 20170189720
    Abstract: A radiation therapy medical apparatus is disclosed. The medical apparatus comprises: a base; a cylindrical gantry, peripherally and rotatably supported by the base; a radiation therapy assembly, comprising an arm and a radiation head, wherein one end of the arm is fixed to a first position on a first side of the gantry and the other end thereof is extended outwardly, and the radiation head is fixed to the other end of the arm; an imaging assembly, mounted to a second side of the gantry opposite to the first side, and configured to be a first balanced weight part for balancing the radiation therapy assembly; and a counterbalance, fixed to the second side of the gantry, and configured to cooperate with the imaging assembly to prevent the gantry from turnover under action of the radiation therapy assembly and configured to dynamically balance with the radiation therapy assembly with respect to a rotation axis of the gantry.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Jian LIU, Jian ZHANG, Yuelin SHAO, Xiaolong LIU, Jonathan S. MALTZ, Johannes N. STAHL
  • Publication number: 20170189724
    Abstract: A radiation therapy medical apparatus is disclosed. The medical apparatus includes a base, a cylindrical gantry peripherally and rotatably supported on the base, a first medical device assembly fixed to a first side of the gantry, a cylinder fixed to a second side of the gantry, the gantry disposed between the first medical device and the cylinder, a drag chain carrier comprising a carrier body surrounding the cylinder and defining an annular track, a drag chain, arranged within the annular track, wherein a first end of the drag chain is fixed to the cylinder and a second end is fixed to the cylindrical carrier body, and a cable supported by the drag chain, wherein a first end of the cable is electrically connected to the first medical device assembly.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Jian LIU, Jian ZHANG, Yuelin SHAO, Xiaolong LIU, Jonathan S. MALTZ, Johannes N. STAHL
  • Publication number: 20170189719
    Abstract: A medical apparatus is disclosed. The medical apparatus comprises a base, a support assembly and a patient support. The support assembly includes a first support rotatably mounted to the base, a second support movably mounted to the first support to move along a first horizontal direction, a third support, a height adjustment mechanism disposed between the second support and the third support such that the height of the third support with respect to the second support is adjustable, and a fourth support movably mounted to the third support to move along a second horizontal direction perpendicular to the first horizontal direction. The patient support is movably mounted to the fourth support to move along the first horizontal direction.
    Type: Application
    Filed: December 31, 2015
    Publication date: July 6, 2017
    Inventors: Jian LIU, Jian ZHANG, Yuelin SHAO, Xiaolong LIU, Jonathan S. MALTZ, Johannes N. STAHL
  • Patent number: 8619945
    Abstract: Some aspects include a system, medium, and method for receiving an indication of occurrences of a substantially periodic treatment opportunity for a target volume of a patient from a motion detection device, the treatment opportunity being a period of time the target volume is in a position to be irradiated according to a burst mode treatment plan to be administered by a radiotherapy device; determining a future treatment opportunity for a target volume of a patient; beginning synchronization of a prescribed delivery period of burst mode irradiation and the future treatment opportunity; presenting, to the patient, an indication of timing data indicative of a time until the prescribed delivery period of burst mode irradiation will occur; and irradiating the target volume during the synchronization of the future treatment opportunity and the prescribed delivery period of burst mode irradiation.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: December 31, 2013
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Johannes N. Stahl
  • Patent number: 8594276
    Abstract: Aspects may include movement of at least one device along a path to change an orientation of a target volume with respect to a radiation beam emitter, determination that the at least one device has reached a start position of a first path section associated with a first radiation treatment beam, emission, while the at least one device moves along the first path section, of the first radiation treatment beam from the radiation beam emitter toward a target volume, determination that the at least one device has reached a stop position of the first path section, ceasing emission of the first radiation treatment from the radiation beam emitter in response to the determination that the at least one device has reached a stop position of the first path section, determination that the at least one device has reached a start position of a second path section associated with a second radiation treatment beam, the start position of the second path section being different from the stop position of the first path section,
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: November 26, 2013
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Johannes N. Stahl, Himanshu P. Shukla
  • Publication number: 20130070898
    Abstract: Some aspects include a system, medium, and method for receiving an indication of occurrences of a substantially periodic treatment opportunity for a target volume of a patient from a motion detection device, the treatment opportunity being a period of time the target volume is in a position to be irradiated according to a burst mode treatment plan to be administered by a radiotherapy device; determining a future treatment opportunity for a target volume of a patient; beginning synchronization of a prescribed delivery period of burst mode irradiation and the future treatment opportunity; presenting, to the patient, an indication of timing data indicative of a time until the prescribed delivery period of burst mode irradiation will occur; and irradiating the target volume during the synchronization of the future treatment opportunity and the prescribed delivery period of burst mode irradiation.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 21, 2013
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventor: Johannes N. Stahl
  • Patent number: 8229071
    Abstract: Some aspects include a system, apparatus, and method for obtaining a burst mode treatment plan to be administered by a radiotherapy device, the burst mode treatment plan prescribing parameters for one or more dynamic axes, parameters for one or more static axes, and position parameters for the one or more dynamic axes corresponding to a prescribed delivery period of burst mode irradiation; receiving an indication of occurrences of a substantially periodic treatment opportunity for a target volume of a patient from a gating device, the treatment opportunity being a period of time the target volume is in a position to be irradiated according to the burst mode treatment plan; synchronizing the treatment opportunity and the prescribed delivery period of burst mode irradiation; and irradiating the target volume during the synchronization of the treatment opportunity and the prescribed delivery period of burst mode irradiation.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: July 24, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Johannes N. Stahl
  • Publication number: 20120008745
    Abstract: Some aspects include a system, apparatus, and method for obtaining a burst mode treatment plan to be administered by a radiotherapy device, the burst mode treatment plan prescribing parameters for one or more dynamic axes, parameters for one or more static axes, and position parameters for the one or more dynamic axes corresponding to a prescribed delivery period of burst mode irradiation; receiving an indication of occurrences of a substantially periodic treatment opportunity for a target volume of a patient from a gating device, the treatment opportunity being a period of time the target volume is in a position to be irradiated according to the burst mode treatment plan; synchronizing the treatment opportunity and the prescribed delivery period of burst mode irradiation; and irradiating the target volume during the synchronization of the treatment opportunity and the prescribed delivery period of burst mode irradiation.
    Type: Application
    Filed: December 17, 2010
    Publication date: January 12, 2012
    Applicant: SIEMENS MEDICAL SOLUTIONS USA, INC.
    Inventor: Johannes N. Stahl
  • Publication number: 20110293067
    Abstract: Aspects may include movement of at least one device along a path to change an orientation of a target volume with respect to a radiation beam emitter, determination that the at least one device has reached a start position of a first path section associated with a first radiation treatment beam, emission, while the at least one device moves along the first path section, of the first radiation treatment beam from the radiation beam emitter toward a target volume, determination that the at least one device has reached a stop position of the first path section, ceasing emission of the first radiation treatment from the radiation beam emitter in response to the determination that the at least one device has reached a stop position of the first path section, determination that the at least one device has reached a start position of a second path section associated with a second radiation treatment beam, the start position of the second path section being different from the stop position of the first path section,
    Type: Application
    Filed: November 15, 2010
    Publication date: December 1, 2011
    Applicant: Siemens Medical Solutions USA, Inc.
    Inventors: Johannes N. Stahl, Himanshu P. Shukla
  • Patent number: 8027431
    Abstract: Some embodiments include receiving a radiation treatment plan for delivering at least a portion of a prescribed radiation dose to a target volume in a series of individual treatment beams, each individual treatment beam defined by a segment including start angle and a stop angle, and delivering a portion of the prescribed radiation dose to the target volume over each of the segments, the segments arranged in a contiguous manner on an arc.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: September 27, 2011
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Johannes N. Stahl, Himanshu P. Shukla
  • Publication number: 20100322381
    Abstract: Embodiments may include receiving a radiation treatment plan for delivering at least a portion of a prescribed radiation dose to a target volume in a series of individual treatment beams, each individual treatment beam defined by a segment including start angle and a stop angle, and delivering a portion of the prescribed radiation dose to the target volume over each of the segments, the segments arranged in a contiguous manner on an arc.
    Type: Application
    Filed: August 18, 2009
    Publication date: December 23, 2010
    Inventors: Johannes N. Stahl, Himanshu P. Shukla