Patents by Inventor Colin Winfield
Colin Winfield 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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Publication number: 20230226377Abstract: Disclosed herein is a method of positioning a patient for radio-therapy treatment using a radiotherapy device. The method comprises determining an identity of a treatment beam that is to be used to treat the patient, determining an offset between a reference location and an isocentre location for the identified treatment beam that is to be used to treat the patient, and changing a spatial relationship between the patient and at least a part of the radiotherapy device, according to the determined offset.Type: ApplicationFiled: April 29, 2021Publication date: July 20, 2023Inventors: Colin Winfield, Johan Tegin, Ana Folgueras
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Publication number: 20230211182Abstract: Disclosed herein is a method of positioning a patient for radiotherapy treatment using a radiotherapy system. The method comprises determining a first target position for the patient for radiotherapy treatment; implementing a spatial relationship between the patient and at least a part of the radiotherapy device, at a first time (t1), according to the first target position; providing radiotherapy treatment to the patient; determining a current position of the patient, at a second, subsequent time (t2); and determining whether a change of a spatial relationship between the patient and at least a part of the radiotherapy device should be made, according to the first target position.Type: ApplicationFiled: April 29, 2021Publication date: July 6, 2023Inventors: Colin Winfield, Rui Liu
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Publication number: 20220261013Abstract: A method, apparatus and computer-readable medium for avoiding collisions between a subject and a radiotherapy device are provided. At a first time point, first location information for the subject is measured using a first sensor and a second sensor. A spatial profile of the subject is determined based on the first location information. At a second time point, second location information for the subject is measured using the first sensor. At this second time point, a line of sight between the second sensor and the subject is obscured. It is determined whether a collision is expected to occur between the subject and the radiotherapy device based on the spatial profile and the second location information.Type: ApplicationFiled: July 16, 2020Publication date: August 18, 2022Inventor: Colin Winfield
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Publication number: 20220088415Abstract: A method of determining whether a radiotherapy device configured to provide therapeutic radiation to a patient should be authorised for use. The device comprises a plurality of components, each component of the plurality of components being coupled with at least one identifier configured to provide data identifying the component it is coupled with. The method comprises receiving, from the identifiers, data identifying each of the plurality of components of the radiotherapy device and determining whether at least one authorisation criterion is met based on the identifying data and authorisation data; and if the at least one authorisation criterion is met, determining that the radiotherapy device is authorised for use.Type: ApplicationFiled: April 23, 2020Publication date: March 24, 2022Inventors: Colin Winfield, Marco Massai, Neil Pritchard, Paul Boxall
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Patent number: 11033756Abstract: A radiotherapy apparatus comprises a source for producing a beam of ionising radiation along an axis, the beam covering a maximum aperture of the source, a collimator for collimating the beam to produce a collimated beam covering a sub-part of the maximum aperture, a patient support positioned in the path of the beam, a rotatable gantry, on which the source is mounted, for rotating the source around the patient support thereby to deliver the beam from a range of directions, an imaging device located opposite the source and with the patient support between the source and the imaging device, and mounted on the gantry via a drive member allowing translational motion of the imaging device in at least one direction perpendicular to the axis, and a control unit adapted to control the drive member to move the imaging device within the maximum aperture and maintain coincidence between the imaging device and the sub-part of the maximum aperture.Type: GrantFiled: September 11, 2015Date of Patent: June 15, 2021Assignee: ELEKTA AB (FUEL)Inventors: John Allen, Colin Winfield
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Publication number: 20200114173Abstract: According to an exemplary embodiment of the present disclosure, a determination of a (floating) isocenter of a radiotherapy system can be provided. For example, the radiotherapy system can comprises a patient support structure, a gantry configured to be rotatable around a gantry axis and having a radiation source, and at least one radiation imaging device. The system can include a calibration system comprising at least one first optical detector mounted at the gantry, at least one second optical detector fixed in a surrounding area of the patient support structure and/or the gantry, first fiducial markers selectively attachable at the patient support structure at defined positions and detectable by the first optical detector, and a phantom selectively attachable at the patient support structure at a defined position. The phantom can include second fiducial markers detectable by the second optical detector, and third fiducial markers configured to be detectable by the radiation imaging device.Type: ApplicationFiled: October 15, 2019Publication date: April 16, 2020Inventors: Andy LITTLE, Antonio COSSU, Florian WEBER, Per BERGFJORD, Rui LIU, Ulrike LUTZ, Colin WINFIELD
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Patent number: 9953416Abstract: Embodiments of the invention provide systems and methods for evaluating treatment parameters for a patient undergoing radiotherapy. The method includes the step of generating a portal dosimetry image showing differences between a planning image obtained prior to a treatment session and a portal image obtained during the treatment session. A database of prior portal dosimetry results is accessed, and a processor is used to perform a similarity measurement between the portal dosimetry image and the prior portal dosimetry results. Based on the similarity measurement, the system determines whether radiation was delivered as planned during the treatment session.Type: GrantFiled: January 11, 2016Date of Patent: April 24, 2018Assignee: Elekta AB (PUBL)Inventors: Colin Winfield, Abdul Sayeed
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Publication number: 20160125602Abstract: Embodiments of the invention provide systems and methods for evaluating treatment parameters for a patient undergoing radiotherapy. The method includes the step of generating a portal dosimetry image showing differences between a planning image obtained prior to a treatment session and a portal image obtained during the treatment session. A database of prior portal dosimetry results is accessed, and a processor is used to perform a similarity measurement between the portal dosimetry image and the prior portal dosimetry results. Based on the similarity measurement, the system determines whether radiation was delivered as planned during the treatment session.Type: ApplicationFiled: January 11, 2016Publication date: May 5, 2016Applicant: ELEKTA AB (PUBL)Inventors: Colin WINFIELD, Abdul SAYEED
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Publication number: 20160074673Abstract: A radiotherapy apparatus comprises a source for producing a beam of ionising radiation along an axis, the beam covering a maximum aperture of the source, a collimator for collimating the beam to produce a collimated beam covering a sub-part of the maximum aperture, a patient support positioned in the path of the beam, a rotatable gantry, on which the source is mounted, for rotating the source around the patient support thereby to deliver the beam from a range of directions, an imaging device located opposite the source and with the patient support between the source and the imaging device, and mounted on the gantry via a drive member allowing translational motion of the imaging device in at least one direction perpendicular to the axis, and a control unit adapted to control the drive member to move the imaging device within the maximum aperture and maintain coincidence between the imaging device and the sub-part of the maximum aperture.Type: ApplicationFiled: September 11, 2015Publication date: March 17, 2016Inventors: John Allen, Colin Winfield
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Patent number: 9271684Abstract: An apparatus has a patient support, a rotatable gantry supporting a source of imaging radiation, and a radiation detector that operates in a cyclical pattern of an exposure phase followed by a readout phase. For a first detector cycle in which the gantry has a first angle of rotation, the source of radiation is controlled to emit a first radiation beam pulse during the exposure phase, and respective first imaging data is read out during the readout phase. For a second, subsequent detector cycle, it is determined if the gantry has rotated through at least a threshold angular displacement relative to said first angle of rotation, and if so, the source of radiation is controlled to emit a second radiation beam pulse during the exposure phase, and respective second imaging data is read out during the readout phase.Type: GrantFiled: August 1, 2013Date of Patent: March 1, 2016Assignee: Elekta AB (Publ)Inventors: Christopher Knox, Colin Winfield, Kevin Brown
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Patent number: 9269137Abstract: Embodiments of the invention provide systems and methods for evaluating treatment parameters for a patient undergoing radiotherapy. The method includes the step of generating a portal dosimetry image showing differences between a planning image obtained prior to a treatment session and a portal image obtained during the treatment session. A database of prior portal dosimetry results is accessed, and a processor is used to perform a similarity measurement between the portal dosimetry image and the prior portal dosimetry results. Based on the similarity measurement, the system determines whether radiation was delivered as planned during the treatment session.Type: GrantFiled: June 26, 2013Date of Patent: February 23, 2016Assignee: ELEKTA AB (PUBL)Inventors: Colin Winfield, Abdul Sayeed
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Publication number: 20150003711Abstract: Embodiments of the invention provide systems and methods for evaluating treatment parameters for a patient undergoing radiotherapy. The method includes the step of generating a portal dosimetry image showing differences between a planning image obtained prior to a treatment session and a portal image obtained during the treatment session. A database of prior portal dosimetry results is accessed, and a processor is used to perform a similarity measurement between the portal dosimetry image and the prior portal dosimetry results. Based on the similarity measurement, the system determines whether radiation was delivered as planned during the treatment session.Type: ApplicationFiled: June 26, 2013Publication date: January 1, 2015Inventors: Colin Winfield, Abdul Sayeed
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Publication number: 20130315367Abstract: An apparatus has a patient support, a rotatable gantry supporting a source of imaging radiation, and a radiation detector that operates in a cyclical pattern of an exposure phase followed by a readout phase. For a first detector cycle in which the gantry has a first angle of rotation, the source of radiation is controlled to emit a first radiation beam pulse during the exposure phase, and respective first imaging data is read out during the readout phase. For a second, subsequent detector cycle, it is determined if the gantry has rotated through at least a threshold angular displacement relative to said first angle of rotation, and if so, the source of radiation is controlled to emit a second radiation beam pulse during the exposure phase, and respective second imaging data is read out during the readout phase.Type: ApplicationFiled: August 1, 2013Publication date: November 28, 2013Applicant: Elekta AB (publ)Inventors: Christopher Knox, Colin Winfield, Kevin Brown
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Publication number: 20050228885Abstract: A method and apparatuses are provided for data collection from network elements in a network. A collector sends a data request to one of the network elements. The collector determines whether a condition exists regarding the network element. When the collector determines that the condition exists, the collector stops the data collection from the network element without affecting the data collection by the collector from other network elements, the data collection remains stopped until the collector is notified that the condition no longer exists, and the collector sends a message to the validator to inform the validator of the condition. In another aspect, a validator is informed of a configuration change of one of a group of network elements. The validator requests at least a portion of configuration information of the network element, determines optimum configuration parameters for data collection, and sends the optimum configuration parameters to a collector.Type: ApplicationFiled: April 7, 2004Publication date: October 13, 2005Inventors: Colin Winfield, Hubert Sieh, Ramin Dousti, Teh Liu, Shobha Singh, Hewad Benawa