Patents by Inventor Per Carlsson
Per Carlsson 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: 20240059176Abstract: Techniques are described for controlling charging of an electric vehicle. According to one or more embodiments, a system is provided comprising a memory that stores computer executable components and a processor that executes the computer executable components stored in the memory, wherein the computer executable components comprise a signaling component located on an electric vehicle and configured to detect a presence of a portable device and a charge control component configured to, upon detection of the presence of the portable device, terminate charging of the electric vehicle.Type: ApplicationFiled: August 22, 2022Publication date: February 22, 2024Inventors: Per Carlsson, Jerry Haaga
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Publication number: 20240050771Abstract: A radiotherapy apparatus is described. The radiotherapy apparatus comprises a radiation source, a beam shaping apparatus, a beam receiving apparatus, and a controller configured to control the beam shaping apparatus. The radiation source is configured to deliver radiation in each of a coplanar configuration and at least one non-coplanar configuration. The beam shaping apparatus is configured to direct the radiation produced by the radiation source towards the beam receiving apparatus in each of the coplanar configuration and the at least one non-coplanar configuration. The controller is configured to control the beam shaping apparatus to apply a limit on a field of radiation produced by the radiation source based on whether the radiation source is configured in the coplanar configuration or the at least one non-coplanar configuration.Type: ApplicationFiled: December 16, 2021Publication date: February 15, 2024Inventors: Kristian Wiberg, Per CARLSSON
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Publication number: 20230263489Abstract: Disclosed herein is an imaging system for a radiotherapy device which is configured to provide therapeutic radiation to a patient via a source of therapeutic radiation. The imaging system comprises a source of imaging radiation, a CBCT panel detector, and a CT detector, wherein the source of imaging radiation is configured to be adjustable such that in a first configuration it is configured to emit imaging radiation towards the CT detector and in a second configuration it is configured to emit imaging radiation towards the CBCT detector.Type: ApplicationFiled: July 1, 2021Publication date: August 24, 2023Inventor: Per CARLSSON
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Publication number: 20230248999Abstract: Disclosed herein is a radiotherapy device comprising a source of therapeutic radiation and an imaging system, the imaging system comprising a source of imaging radiation and a detector. The imaging system is switchable between a first configuration and a second configuration wherein, in the first configuration, the imaging system is configured to emit a beam of imaging radiation shaped for a first imaging modality toward the detector and, in the second configuration, the imaging system is configured to emit a beam of imaging radiation shaped for a second imaging modality toward the detector. The detector is of a shape formed by at least a first and a second section, the first and second section intersecting one another, wherein the first section is positioned for receiving the beam of imaging radiation for the first imaging modality, and the second section is positioned for receiving the beam of imaging radiation for the second imaging modality.Type: ApplicationFiled: June 30, 2021Publication date: August 10, 2023Inventors: Markus Eriksson, Per CARLSSON, Stefan LANGEMARK
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Patent number: 11022663Abstract: A system for moving a patient into and from a medical apparatus includes a patient support arranged outside a treatment space of a medical apparatus, a treatment table arranged inside the treatment space in the medical apparatus and a patient bed movable in a longitudinal direction from the patient support to the treatment table and back by means of activation of a transferring mechanism. The patient bed is provided with at least a first communication channel for transferring communication signals.Type: GrantFiled: May 3, 2017Date of Patent: June 1, 2021Assignee: ELEKTA LTD.Inventors: Per Carlsson, Erik Carlander, Henrik Alexis, Maja Nilsson
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Patent number: 10391336Abstract: An apparatus comprises a radiotherapy delivery apparatus having a radiation source for emitting a beam of radiation and wherein the source is rotatable around an axis intersecting the beam through a range of at least x degrees, an imaging device, and a control unit controlling the source and imaging device. The apparatus further comprises a treatment planning computer receiving a first image of a patient, and parameters defining the operations of the radiotherapy delivery apparatus. Parameters include an available range of rotation for the source, x-e, where e>0. The treatment planning computer generates a treatment plan for the patient based on the received image and parameters. The control unit determines a patient position using the imaging device, determines a rotation r of the patient around the axis relative to the first image, and compensates for the rotation by offsetting the source by a rotation, r, when r<e.Type: GrantFiled: February 4, 2015Date of Patent: August 27, 2019Assignee: ELEKTA AB (PUBL)Inventor: Per Carlsson
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Patent number: 10206606Abstract: A system for moving a patient into and from a medical apparatus includes a patient support arranged outside a treatment space of a medical apparatus, a treatment table arranged inside the treatment space in the medical apparatus and a patient bed movable in a longitudinal direction from the patient support to the treatment table and back by activation of a transferring mechanism. The system may further include a coil arrangement including an anterior coil and a support stand, the support stand resting on the patient bed adjacent to longitudinal edges of the patient bed and being slidable along the patient bed in a longitudinal direction when a patient is placed on the bed.Type: GrantFiled: April 11, 2017Date of Patent: February 19, 2019Assignee: ELEKTA LTD.Inventors: Per Carlsson, Kjell Eldered, Henrik Alexis
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Patent number: 10130327Abstract: Intra-fraction movement of the patient puts at risk sensitive regions that are near to a radiation dose. In a radiotherapy system that delivers a dose as a series of discrete sub-doses, an initial CT scan is performed to determine the patient's position, after which the sub-doses that are directed to regions within a preset distance of a sensitive structure are performed first, while the sub-doses directed to regions that are more remote from a sensitive structure are performed later.Type: GrantFiled: January 17, 2013Date of Patent: November 20, 2018Assignee: Elekta AB (publ)Inventor: Per Carlsson
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Publication number: 20180321336Abstract: A system for moving a patient into and from a medical apparatus includes a patient support arranged outside a treatment space of a medical apparatus, a treatment table arranged inside the treatment space in the medical apparatus and a patient bed movable in a longitudinal direction from the patient support to the treatment table and back by means of activation of a transferring mechanism. The patient bed is provided with at least a first communication channel for transferring communication signals.Type: ApplicationFiled: May 3, 2017Publication date: November 8, 2018Applicant: ELEKTA LTD.Inventors: Per CARLSSON, Erik CARLANDER, Henrik ALEXIS, Maja NILSSON
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Publication number: 20180289283Abstract: A system for moving a patient into and from a medical apparatus includes a patient support arranged outside a treatment space of a medical apparatus, a treatment table arranged inside the treatment space in the medical apparatus and a patient bed movable in a longitudinal direction from the patient support to the treatment table and back by activation of a transferring mechanism. The system may further include a coil arrangement including an anterior coil and a support stand, the support stand resting on the patient bed adjacent to longitudinal edges of the patient bed and being slidable along the patient bed in a longitudinal direction when a patient is placed on the bed.Type: ApplicationFiled: April 11, 2017Publication date: October 11, 2018Applicant: ELEKTA LTD.Inventors: Per Carlsson, Kjell Eldered, Henrik Alexis
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Patent number: 10022563Abstract: A radiotherapy apparatus comprises a rotatable gantry, supporting a source of therapeutic radiation and a source of diagnostic radiation, the two sources being rotationally (or angularly) spaced apart around a rotation axis of the gantry, with at least one collimator associated with the source of therapeutic radiation and arranged to limit the cross-sectional area of a beam produced by that source, a control means arranged to conduct a treatment fraction using the apparatus by causing the apparatus to i. acquire images of a patient using the source of diagnostic radiation, ii. retain those images at least temporarily, iii. subsequently, after further rotation of the gantry, select a retained image acquired when the source of diagnostic radiation was at a rotational position corresponding to the instantaneous rotational position of the source of therapeutic radiation, and iv. control the beam relative to the patient using information derived from the selected image.Type: GrantFiled: September 22, 2016Date of Patent: July 17, 2018Assignee: ELEKTA AB (PUBL)Inventor: Per Carlsson
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Publication number: 20170007850Abstract: A radiotherapy apparatus comprises a rotatable gantry, supporting a source of therapeutic radiation and a source of diagnostic radiation, the two sources being rotationally (or angularly) spaced apart around a rotation axis of the gantry, with at least one collimator associated with the source of therapeutic radiation and arranged to limit the cross-sectional area of a beam produced by that source, a control means arranged to conduct a treatment fraction using the apparatus by causing the apparatus to i. acquire images of a patient using the source of diagnostic radiation, ii. retain those images at least temporarily, iii. subsequently, after further rotation of the gantry, select a retained image acquired when the source of diagnostic radiation was at a rotational position corresponding to the instantaneous rotational position of the source of therapeutic radiation, and iv. control the beam relative to the patient using information derived from the selected image.Type: ApplicationFiled: September 22, 2016Publication date: January 12, 2017Applicant: Elekta ABInventor: Per CARLSSON
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Patent number: 9526917Abstract: A radiotherapy apparatus comprises a rotatable gantry, supporting a source of therapeutic radiation and a source of diagnostic radiation. The two sources may be rotationally spaced apart around a rotation axis of the gantry, with at least one collimator associated with the source of therapeutic radiation and arranged to limit the cross-sectional area of a beam produced by that source. A control means may be arranged to conduct a treatment fraction using the apparatus by causing the apparatus to acquire images of a patient using the source of diagnostic radiation, retain those images at least temporarily, select a retained image acquired when the source of diagnostic radiation was at a rotational position corresponding to the instantaneous rotational position of the source of therapeutic radiation, and control the beam relative to the patient using information derived from the selected image.Type: GrantFiled: April 30, 2014Date of Patent: December 27, 2016Assignee: Elekta AB (Publ)Inventor: Per Carlsson
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Publication number: 20160354617Abstract: An apparatus is disclosed, which comprises a radiotherapy delivery apparatus having a radiation source for emitting a beam of radiation and rotatable around an axis intersecting the beam through a range of at least x degrees, an imaging device, and a control unit for controlling the source and imaging device. The apparatus further comprises a treatment planning computer configured to receive a first image of a patient, and receive parameters defining the operations of the radiotherapy delivery apparatus. The parameters include an available range of rotation for the source defined as x-e, where e>0. The treatment planning computer is further configured to generate a treatment plan for the patient based on the received image and parameters. The control unit determines a patient position using the imaging device, determines a rotation r of the patient around the axis relative to the first image, and compensates for the rotation by offsetting the source by a rotation equal to r when r<e.Type: ApplicationFiled: February 4, 2015Publication date: December 8, 2016Applicant: Elekta AB (publ)Inventor: Per Carlsson
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Publication number: 20140321615Abstract: A radiotherapy apparatus comprises a rotatable gantry, supporting a source of therapeutic radiation and a source of diagnostic radiation, the two sources being rotationally (or angularly) spaced apart around a rotation axis of the gantry, with at least one collimator associated with the source of therapeutic radiation and arranged to limit the cross-sectional area of a beam produced by that source, a control means arranged to conduct a treatment fraction using the apparatus by causing the apparatus to i. acquire images of a patient using the source of diagnostic radiation, ii. retain those images at least temporarily, iii. subsequently, after further rotation of the gantry, select a retained image acquired when the source of diagnostic radiation was at a rotational position corresponding to the instantaneous rotational position of the source of therapeutic radiation, and iv. control the beam relative to the patient using information derived from the selected image.Type: ApplicationFiled: April 30, 2014Publication date: October 30, 2014Applicant: Elekta AB (Publ)Inventor: Per Carlsson
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Publication number: 20140046601Abstract: The present invention relates to the field of radiation therapy. In particular, the invention concerns a method of calibrating a positioning system in a radiation therapy system comprising a radiation therapy unit having a fixed radiation focus point. The method comprises the steps of: —releasably attaching a calibration tool to the fixation arrangement; —performing an image scanning procedure with the imaging system; —determining a position of the calibration tool in a coordinate system related to the imaging system; and —calculating a position difference between the determined position of the calibration tool in the coordinate system related to the imaging system and a position of the calibration tool in the stereotactic fixation unit coordinate system, thereby determining a relationship between the coordinate system related to the imaging system and the position of the calibration tool in the stereotactic fixation unit coordinate system.Type: ApplicationFiled: April 29, 2011Publication date: February 13, 2014Applicant: ELEKTA AB (PUBL)Inventor: Per Carlsson
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Patent number: 8567405Abstract: This invention relates to a fixation device and a method for immobilizing a head of a patient relative a treatment unit or medical device during treatment of the head. The fixation device is provided with an interface unit adapted to be fixated in relation to an adaptor unit for connection to the treatment unit, or to a frame for connection to the medical device. Furthermore, the fixation device is provided with a bite-block for being inserted into a mouth of a patient and a positioning arrangement movably connecting the bite-block to the interface unit. The positioning arrangement is adapted to be fixated by means of an adhesive for fixation of the bite-block such that the head of a patient can be immobilized relative said adaptor unit or frame.Type: GrantFiled: April 22, 2008Date of Patent: October 29, 2013Assignee: Elekta AB (Publ)Inventors: Thomas Arn, Per Carlsson, Kristian Wiberg
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Patent number: 8393821Abstract: According to the present invention, there is provided a clamping device for locking two elements, e.g. rotatable shafts, having a substantially circular cross-section. The clamping device comprises a central holding part having two partly curved sections being adapted to at least partly encircle and hold the elements, which curved sections are inversely curved. Further, the clamping device comprises an upper holding part having a partly curved section arranged being adapted to at least partly encircle and hold a first element and a lower holding part having a partly curved section being adapted to at least partly encircle and hold a second element. The central, upper and lower holding parts are adapted to co-operate to lock the elements when pressed together by means of a tightening element. The curved sections are inversely curved in relation to each other and form together with the substantially rectangular section a substantially S-shaped central part.Type: GrantFiled: November 10, 2009Date of Patent: March 12, 2013Assignee: Elekta AB (Publ)Inventors: Kristian Wiberg, Per Carlsson
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Patent number: 8088083Abstract: The present invention relates to the field of radiation therapy. In particular, the relates to a system for measuring the position of a head of a patient during neurological diagnosis, therapy or surgery, in particular during radiation therapy relatively a frame adapted to be fixated to a radiation therapy unit. The invention also relates to a head cap and a measurement tool for use in such a system, and to a method measuring the position of a head of a patient by means of a system mentioned above during neurological diagnosis, therapy or surgery, in particular during radiation therapy relatively a frame adapted to be fixated to a radiation therapy unit.Type: GrantFiled: April 22, 2009Date of Patent: January 3, 2012Assignee: Elekta AB (Publ)Inventors: Thomas Rousseau, Per Carlsson, Magnus Lindfors
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Patent number: 7936859Abstract: The present invention concerns a method, a system, a measurement tool and computer readable medium for determining a predetermined position of a positioning system in a radiation therapy system comprising a radiation therapy unit relatively a fixed radiation focus point of the radiation therapy unit. The method comprises positioning (73) a diode element, obtaining (75) measurement data at each of a predetermined number of measurement points from a radiation intensity curve, determining (76) a three-dimensional centre coordinate of the obtained coordinates, and determining (76) the predetermined position of a patient positioning unit (20) relatively to a fixed focus point of a radiation unit (10) using the determined three-dimensional centre coordinate.Type: GrantFiled: February 15, 2007Date of Patent: May 3, 2011Assignee: Elekta AB (Publ)Inventor: Per Carlsson