公开(公告)号：US12109436B2

公开(公告)日：2024-10-08

申请号：US17883473

申请日：2022-08-08

申请人： OUR UNITED CORPORATION

发明人： Jinsheng Li ,  Hao Yan ,  Tianchang Gou

IPC分类号： A61N5/10

CPC分类号： A61N5/1069 ,  A61N2005/1059 ,  A61N2005/1076

摘要： A control method for positioning is provided, which is applicable to a radiotherapy system. The method includes: acquiring a plurality of first body surface coordinates of a target site in a three-dimensional body surface image of a treatment object on a treatment couch; acquiring a plurality of second body surface coordinates under an isocentric coordinate system by transforming the first body surface coordinates using a target transformation matrix corresponding to the first placement position; determining, based on the plurality of second body surface coordinates and a contour image of the target site in the treatment plan, a placement offset of the target site, so as to control the treatment couch to move until the placement offset of the target site upon the movement meets a target offset requirement.

公开(公告)号：US20240316364A1

公开(公告)日：2024-09-26

申请号：US18611891

申请日：2024-03-21

申请人： SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

发明人： ZHONG-HUA SHI ,  CAN LIAO

IPC分类号： A61N5/10

CPC分类号： A61N5/1075 ,  A61N5/1077 ,  A61N2005/1054 ,  A61N2005/1076

摘要： A quality assurance (QA) method for a radiotherapy device, a QA device for a radiotherapy device, and a computer device. The radiotherapy device includes an electronic portal imaging device (EPID). The QA method for the radiotherapy device includes: obtaining an image sequence based on acquirement of EPID, the image sequence comprising one or more correction images for correcting the EPID, and one or more portal images for a QA object; and determining a QA result of the QA object of the radiotherapy device according to a calibration parameter corresponding to the one or more correction images and according to the one or more portal images.

公开(公告)号：US12070623B2

公开(公告)日：2024-08-27

申请号：US17309009

申请日：2019-10-11

申请人： Elekta LTD.

发明人： Daniel Letourneau ,  Elaine Conneely

IPC分类号： A61N5/00 ,  A61N5/10 ,  G16H30/40

CPC分类号： A61N5/1075 ,  A61N5/1045 ,  G16H30/40 ,  A61N2005/1055 ,  A61N2005/1076

摘要： The present disclosure includes procedures to automate quality assurance testing for radiotherapy equipment that includes MR-Linac devices that are agnostic as to the manufacturer and vendor of the equipment. The present disclosure includes a process for performing a validation procedure for the linear accelerator of the MR-Linac device. The present disclosure includes a process for analyzing quality of the images produced by the MR imaging device of the MR-Linac device. The present disclosure includes a process for combining performance of a validation procedure for the linear accelerator of the MR-Linac device and the analysis of the quality of the images produced by the MR imaging device of the MR-Linac device.

公开(公告)号：US12042670B2

公开(公告)日：2024-07-23

申请号：US17708423

申请日：2022-03-30

申请人： VARIAN MEDICAL SYSTEMS, INC. ,  Siemens Healthineers International AG

发明人： Reto W. Filiberti ,  Stephen Gaudio

IPC分类号： A61N5/10

CPC分类号： A61N5/1075 ,  A61N5/10 ,  A61N5/1037 ,  A61N5/1042 ,  A61N5/1045 ,  A61N5/1047 ,  A61N5/1048 ,  A61N5/1049 ,  A61N5/1064 ,  A61N5/1065 ,  A61N5/1067 ,  A61N5/1069 ,  A61N5/107 ,  A61N5/1077 ,  A61N5/1081 ,  A61N5/1082 ,  A61N2005/1054 ,  A61N2005/1057 ,  A61N2005/1059 ,  A61N2005/1061 ,  A61N2005/1074 ,  A61N2005/1076

摘要： Systems, devices, and methods for imaging-based calibration of radiation treatment couch position compensations.

公开(公告)号：US12023522B2

公开(公告)日：2024-07-02

申请号：US17721331

申请日：2022-04-14

申请人： VARIAN MEDICAL SYSTEMS, INC.

发明人： James Kerns ,  Niklaus Schneider ,  Todd G Holmes ,  Christian Stamm

IPC分类号： A61N5/10

CPC分类号： A61N5/1075 ,  A61N2005/1076

摘要： An apparatus in a radiation therapy system includes: a base configured to support a first quality assurance phantom at a first position and a second quality assurance phantom at a second position; and at least one coupling element. The at least one coupling element is configured to: mate with at least one indexing feature of a first patient treatment couch of the radiation therapy system; and fix a position of the base relative to the first patient treatment couch.

公开(公告)号：US20240189624A1

公开(公告)日：2024-06-13

申请号：US18424533

申请日：2024-01-26

申请人： RefleXion Medical, Inc.

发明人： Peter Demetri OLCOTT ,  Angela Jane DA SILVA ,  Shiyu XU ,  Lingxiong SHAO

IPC分类号： A61N5/10 ,  G16H20/40

CPC分类号： A61N5/1075 ,  A61N5/1039 ,  A61N5/1071 ,  G16H20/40 ,  A61N2005/1041 ,  A61N2005/1076 ,  A61N2005/1095

摘要： Disclosed herein are methods and dose metrics for evaluating the performance and/or quality of a radiotherapy treatment plan and/or radiotherapy system. Dose metrics may be used in a quality assurance (QA) procedure to evaluate (e.g., test, confirm, validate, etc.) the quality of a treatment plan and/or radiotherapy system before radiation is delivered to a patient. One example of a dose metric is a coverage margin metric. The coverage margin metric may provide a way to quantify how tumor motion affects dose coverage and facilitate the determination of whether the tumor contour defined in the treatment plan has a margin that is sufficient to compensate for tumor motion and/or positional changes during radiation therapy.

公开(公告)号：US20240139548A1

公开(公告)日：2024-05-02

申请号：US18550829

申请日：2022-03-15

申请人： Elekta Limited

发明人： John Allen

IPC分类号： A61N5/10

CPC分类号： A61N5/1075 ,  A61N5/1045 ,  A61N5/1067 ,  A61N5/107 ,  A61N5/1071 ,  A61N2005/1076

摘要： Disclosed herein is a method for controlling a radiotherapy apparatus to perform quality assurance. The radiotherapy apparatus comprises a subject support surface, and a beam delivery device for delivering a planned radiation dose to a moving target region of a patient according to a plan, the plan comprising instructions for instructing the beam delivery device to adjust a positioning of a beam to compensate for motion of the target region. The method comprises receiving motion data, controlling movement of the subject support surface to simulate motion of the target region of the patient, based on the motion data, and controlling the beam delivery device to deliver radiation according to the plan while the subject support simulates motion of the target region.

公开(公告)号：US11964172B2

公开(公告)日：2024-04-23

申请号：US17420659

申请日：2019-12-12

申请人： University of Kentucky Research Foundation

发明人： Janelle A. Molloy ,  Dennis A. Cheek ,  Quan Chen

IPC分类号： A61N5/10 ,  H05H7/02

CPC分类号： A61N5/1075 ,  A61N5/1048 ,  H05H7/02 ,  A61N2005/1076

摘要： A quality assurance device for a medical accelerator includes a housing having an inner radioluminescent layer adapted to provide a visual indication when contacted with invisible radiation generated by the medical accelerator. In addition, the quality assurance device includes one or more cameras located within the housing and adapted to image the inner radioluminescent layer of the housing including the visual indication.

公开(公告)号：US11717705B1

公开(公告)日：2023-08-08

申请号：US17878645

申请日：2022-08-01

申请人： VARIAN MEDICAL SYSTEMS, INC.

发明人： James Kerns ,  Niklaus Schneider ,  Todd G Holmes ,  Christian Stamm

IPC分类号： A61N5/10

CPC分类号： A61N5/1075 ,  A61N2005/1076

摘要： An apparatus in a radiation therapy system includes: a base configured to support a first quality assurance phantom at a first position and a second quality assurance phantom at a second position; and at least one coupling element. The at least one coupling element is configured to: mate with at least one indexing feature of a first patient treatment couch of the radiation therapy system; and fix a position of the base relative to the first patient treatment couch.

公开(公告)号：US20230181933A1

公开(公告)日：2023-06-15

申请号：US18107879

申请日：2023-02-09

申请人： VISION RT LIMITED

发明人： Edward William MEAD ,  Ivan Daniel MEIR

IPC分类号： A61N5/10

CPC分类号： A61N5/1075 ,  A61N2005/1076

摘要： A method of calibrating a monitoring system (10,14) is described in which a calibration phantom (70) is located with its center located approximately at the isocenter of a treatment room through which a treatment apparatus (16) is arranged to direct radiation, wherein the surface of the calibration phantom (70) closest to an image capture device (72) of the monitoring system (10,14) is inclined approximately 45° relative to the camera plane of an image capture device of the monitoring system. Images of the calibration phantom (70) are then captured using the image capture device (72) and the images are processed to generate a model of the imaged surface of the calibration phantom. The generated model of the imaged surface of the calibration phantom (70) is then utilized to identify the relative location of the center of the calibration phantom (70) and the camera plane of the image capture device (72) which is then utilized to determine the relative location of the camera plane of the image capture device and the isocenter of a treatment room.