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公开(公告)号：US12127327B2
公开(公告)日：2024-10-22
申请号：US18190900
申请日：2023-03-27
发明人： Ronald Agustsson , Robert Berry , Salime Boucher , Josiah Hartzell , Sergey Kutsaev , Jacob McNevin , Avinash Verma
摘要： A linear accelerator head for use in a medical radiation therapy system can include a housing, an electron generator configured to emit electrons along a beam path, and a microwave generation assembly. The linear accelerator head may include a waveguide that is configured to contain a standing or travelling microwave. The waveguide can include a plurality of cells that are disposed adjacent one another, wherein each of the plurality of cells may define an aperture configured to receive electrons therethrough. The linear accelerator head can further include a converter and a primary collimator.
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公开(公告)号：US12121378B2
公开(公告)日：2024-10-22
申请号：US16487946
申请日：2018-02-23
发明人： Ke Sheng , Salime M. Boucher
CPC分类号： A61B6/102 , A61B6/035 , A61B6/4085 , A61N5/1038 , A61N5/1045 , A61N5/1083 , A61N2005/1061
摘要： A system for coordinating radiation therapy and imaging processes includes a radiation therapy system an radiation source mounted on a robotically-controlled system to move the radiation source about a subject to direct radiation to a target area in the subject according to a treatment plan. The system also includes an imaging system configured to acquire imaging data from a subject. The imaging system and the radiation therapy system are independently movable. The system also includes a coordination system configured to coordinate operation of the imaging system to acquire the imaging data from the subject during movement of the radiation source about the subject according to the treatment plan to avoid collisions of the radiation therapy system with the imaging system.
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公开(公告)号：US12090339B2
公开(公告)日：2024-09-17
申请号：US18138876
申请日：2023-04-25
发明人： Jarkko Y. Peltola , Tuomas Tallinen , Mikko Vainio
IPC分类号： A61N5/10
CPC分类号： A61N5/1031 , A61N5/1045 , A61N5/1048
摘要： After accessing optimization information for a particular patient and for a particular radiation treatment platform, a control circuit generates an optimized radiation treatment plan by processing the optimization information using direct-aperture-optimization that includes fluence-based sub-optimization. By one approach, the control circuit includes the fluence-based sub-optimization in at least some, but not necessarily all, iterations of the direct-aperture-optimization. By one approach, the control circuit is configured to include only a few iterations of the fluence-based sub-optimization when including the fluence-based sub-optimization in at least some, but not necessarily all, iterations of the direct-aperture-optimization.
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4.发明授权公开(公告)号：US12076589B2
公开(公告)日：2024-09-03
申请号：US18133732
申请日：2023-04-12
发明人： Mika Miettinen , Ross B. Hannibal , Mu Young Lee
CPC分类号： A61N5/1065 , A61B6/032 , A61B6/06 , A61B6/4085 , A61N5/1031 , A61N5/1039 , A61N5/1045 , A61N5/1048 , A61N5/1078 , G21K1/046 , A61N2005/1074 , A61N2005/1091 , A61N2005/1095
摘要： A photon source emits a flattening filter-free photon beam. A control circuit operably couples to a multi-layer multi-leaf collimator that is disposed between the photon source and a treatment area of a patient. The control circuit automatically arranges operation of some, but not all, of the layers of the multi-layer multi-leaf collimator to serve as a virtual flattening filter with respect to the flattening filter-free photon beam emitted by the photon source. By one approach, another of the layers of the multi-layer multi-leaf collimator serves to form a treatment aperture corresponding to a shape of the treatment area of the patient. By one approach the control circuit comprises an integral part of a treatment platform (as versus a dedicated treatment planning platform) and can carry out most or even essentially all of the planning steps that lead to administration of the treatment to a patient.
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5.发明授权公开(公告)号：US12064647B2
公开(公告)日：2024-08-20
申请号：US17361817
申请日：2021-06-29
CPC分类号： A61N5/1036 , A61N5/1031 , A61N5/1045 , G05B13/027 , G06N3/09 , G06N3/092 , G16H20/40 , G16H40/63 , G16H50/20 , G16H50/70
摘要： A memory has a fluence map that corresponds to a particular patient stored therein. This memory also has at least one deep learning model stored therein trained to deduce a leaf sequence for a multi-leaf collimator from a fluence map. A control circuit operably coupled to that memory iteratively optimizes a radiation treatment plan to administer therapeutic radiation to that patient by, at least in part, generating a leaf sequence as a function of the at least one deep learning model and the fluence map that corresponds to the patient.
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6.发明授权公开(公告)号：US12029919B2
公开(公告)日：2024-07-09
申请号：US17417085
申请日：2019-11-25
发明人： Hu Er Wen , Jonathan Yi Yao
CPC分类号： A61N5/1045 , A61N5/1031 , G21K1/067
摘要： The invention discloses a dynamic intensity-modulated segmentation method for an orthogonal double-layer grating blade device. The core of the segmentation algorithm is to construct a virtual single-layer grating after the velocities of the two-layer gratings are synthesized to perform dynamic intensity modulation of the single-layer grating (sliding-window) segmentation, and finally use two layers of gratings to conform to each segment. In order to reduce the segmentation error, the invention provides two optimization methods: blade motion trajectory optimization method and segment weight optimization method. The blade motion trajectory optimization method is to optimize the objective function under certain constraints with the motion trajectory of each blade as a variable under the condition that the segment weight is fixed. Segment weight optimization method is to optimize the time points of each segment when the blade motion trajectory is fixed. Both of the two optimization methods can reduce the error of the segmentation intensity and improve the optimization effect.
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公开(公告)号：US20240207646A1
公开(公告)日：2024-06-27
申请号：US18433361
申请日：2024-02-05
发明人： Johannes STAHL , Jonathan MALTZ
IPC分类号： A61N5/10
CPC分类号： A61N5/1045 , A61N5/1036 , A61N5/1049 , A61N5/1031 , A61N2005/1032 , A61N2005/1035 , A61N5/1039 , A61N2005/1041 , A61N5/1077
摘要： A method for delivering radiation treatment may include defining a preliminary trajectory including a plurality of control points. Each control point may be associated with position parameters of a gantry and a couch. The method may also include generating a treatment plan based on the preliminary trajectory by optimizing an intensity and position parameters of a collimator and MLC leaves for each control point. The method may also include decomposing the treatment plan into a delivery trajectory including the plurality of control points. Each of the plurality of control points may be further associated with the optimized intensity, the optimized position parameters of the collimator and the MLC leaves, an output rate, and a motion parameter of each of the gantry, the couch, the collimator, and the MLC leaves. The method may further include instructing a radiation delivery device to deliver the treatment plan according to the delivery trajectory.
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公开(公告)号：US12017091B2
公开(公告)日：2024-06-25
申请号：US18462606
申请日：2023-09-07
发明人： Peter S. Friedman
CPC分类号： A61N5/1067 , A61N5/00 , A61N5/1045 , A61N5/1048 , A61N5/1049 , A61N5/1064 , G01T1/40 , A61N2005/1059 , A61N5/1077 , A61N2005/1087 , G01T1/1612 , G01T1/29
摘要： Embodiments are directed generally to an ionizing-radiation beamline monitoring system that includes a vacuum chamber structure with vacuum compatible flanges through which an incident ionizing-radiation beam enters the monitoring system. Embodiments further include at least one scintillator within the vacuum chamber structure that can be at least partially translated in the ionizing-radiation beam while oriented at an angle greater than 10 degrees to a normal of the incident ionizing-radiation beam, a machine vision camera coupled to a light-tight structure at atmospheric/ambient pressure that is attached to the vacuum chamber structure by a flange attached to a vacuum-tight viewport window with the camera and lens optical axis oriented at an angle of less than 80 degrees with respect to a normal of the scintillator, and at least one ultraviolet (“UV”) illumination source facing the scintillator in the ionizing-radiation beam for monitoring a scintillator stability comprising scintillator radiation damage.
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9.发明授权公开(公告)号：US12011617B2
公开(公告)日：2024-06-18
申请号：US17259905
申请日：2018-07-12
发明人： Jinsheng Li , Hao Yan
IPC分类号： A61N5/10
CPC分类号： A61N5/1075 , A61N5/1045 , A61N5/1065
摘要： Disclosed is a method for detecting installation of a collimator of radiotherapy equipment. The method includes: acquiring a projection to be detected of a beam passing through the collimator and an isocentric plane of the radiotherapy equipment in sequence on a ray detector; comparing the projection to be inspected with a reference projection, and determining an installation deviation of the collimator of the radiotherapy equipment based on a deviation between the projection to be detected and the reference projection.
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公开(公告)号：US11998762B2
公开(公告)日：2024-06-04
申请号：US17114077
申请日：2020-12-07
发明人： Ross Berbeco , Yue-Houng Hu
CPC分类号： A61N5/1077 , A61B6/4266 , A61B90/39 , A61N5/1045 , A61N5/1049 , G01T1/2018 , G01T1/2023 , A61B2090/3937
摘要： Some aspects of the disclosure provide a radiation therapy system. The system can include a radiation source configured to emit a radiation therapy beam, a collimator positioned to attenuate at least a periphery of the radiation therapy beam, a radiation fiducial marker configured to be coupled to a patient, and a first radiation detector and a second radiation detector configured to receive the radiation therapy beam after passing through a patient. The system also includes a computer configured to determine a position of the radiation fiducial marker using information from the first detector and the second detector.
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