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公开(公告)号:US12090344B2
公开(公告)日:2024-09-17
申请号:US18262920
申请日:2022-02-03
Applicant: RaySearch Laboratories AB (Publ)
Inventor: Erik Traneus
IPC: A61N5/10
CPC classification number: A61N5/1081 , A61N5/1031 , A61N2005/1087 , A61N2005/1095
Abstract: A radiation delivery system includes a chair on which the patient may be seated during treatment and a modulating assembly (10) for use in radiotherapy comprises a modulator wheel (15), said modulator wheel being shaped as a rim defining the circumference of a circle or an elliptic shape, and having varying thickness around the circumference, said modulator wheel (15) being arranged in such a way that a beam traveling from a radiation source (13) to a patient will intersect the rim of the modulator wheel, said wheel being arranged to rotate in such a way that the beam will intersect the rim in varying positions around the circumference. The wheel will modulate the energy of the beams passing through material having varying thickness as the modulator wheel rotates.
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公开(公告)号:US20240245930A1
公开(公告)日:2024-07-25
申请号:US18559991
申请日:2022-05-13
Applicant: Elekta, Inc.
Inventor: Stuart Julian Swerdloff
IPC: A61N5/10
CPC classification number: A61N5/1031 , A61N5/1043 , A61N5/1071 , A61N5/1082 , A61N2005/1087 , A61N2005/1095
Abstract: Systems and techniques may be used to generate a radiotherapy treatment plan to execute using a particle beam from a continuously rotating gantry towards a target. A technique may include identifying a target location within a tumor of a patient, providing a particle beam configured to deliver radiotherapy treatment to the tumor along a trajectory using at least two energies including a first energy and a second energy, the first energy greater than the second energy, and determining a first location along the trajectory past the target location and a second location before the target location along the trajectory. The technique may include determining a configuration for the particle beam to deliver the first energy to the first location and the second energy to the second location. In some examples, a radiotherapy treatment plan according to the configuration may be output.
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公开(公告)号:US12036424B2
公开(公告)日:2024-07-16
申请号:US17051369
申请日:2019-04-08
Inventor: Huiliang Wang , Ming Zhong , Hongbin Zhao
CPC classification number: A61N5/1042 , A61N5/1081 , H01J35/064 , H01J35/08 , H01J35/14 , A61N2005/1091 , A61N2005/1095
Abstract: A radiotherapy head can include an electron accelerator, a deflection control assembly, a collimator, and a target material. The deflection control assembly is provided between the electron accelerator and the collimator, the collimator is provided with a plurality of collimating holes, and the target material is provided at an entrance of the each of the plurality of collimating holes; the deflection control assembly is configured to adjust a deflection angle of electron beams emitted by the electron accelerator, and emit angle-deflected electron beams to the target material; the target material is configured to convert the electron beams emitted to the target material into X-rays; and the collimator is configured to project the X-rays to a target via the plurality of collimating holes.
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4.
公开(公告)号:US20240233976A9
公开(公告)日:2024-07-11
申请号:US18547952
申请日:2022-02-23
Applicant: Westinghouse Electric Company LLC
Inventor: Michael D. HEIBEL , Devon GERSTEIN , Maureen GILTHII , Yazhu JIANG , Jack DECKER , Emerie STAGNER , Jeremy DUNSTON
CPC classification number: G21K5/02 , A61N5/10 , A61N2005/1089 , A61N2005/1094 , A61N2005/1095
Abstract: Devices, systems, and methods for delivering delta radiation using prompt neutron capture gamma radiation are disclosed herein. In one aspect, a device for delivering delta radiation can include a neutron generator, an electron emitter, and an irradiation target. The neutron generator may be configured to generate a neutron flux field. The an irradiation target can include an irradiation target material having a high thermal neutron cross section and can be configured to emit gamma radiation in response to exposure to the neutron flux field. The electron emitter can be configured to emit delta radiation in response to exposure to the gamma radiation. In some aspects, the irradiation target and the electron emitter can be configured to be positioned between the neutron generator and a surface of an object to deliver the delta radiation to a target region within the object.
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5.
公开(公告)号:US20240136085A1
公开(公告)日:2024-04-25
申请号:US18547952
申请日:2022-02-23
Applicant: Westinghouse Electric Company LLC
Inventor: Michael D. HEIBEL , Devon GERSTEIN , Maureen GILTHII , Yazhu JIANG , Jack DECKER , Emerie STAGNER , Jeremy DUNSTON
CPC classification number: G21K5/02 , A61N5/10 , A61N2005/1089 , A61N2005/1094 , A61N2005/1095
Abstract: Devices, systems, and methods for delivering delta radiation using prompt neutron capture gamma radiation are disclosed herein. In one aspect, a device for delivering delta radiation can include a neutron generator, an electron emitter, and an irradiation target. The neutron generator may be configured to generate a neutron flux field. The an irradiation target can include an irradiation target material having a high thermal neutron cross section and can be configured to emit gamma radiation in response to exposure to the neutron flux field. The electron emitter can be configured to emit delta radiation in response to exposure to the gamma radiation. In some aspects, the irradiation target and the electron emitter can be configured to be positioned between the neutron generator and a surface of an object to deliver the delta radiation to a target region within the object.
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公开(公告)号:US20240068963A1
公开(公告)日:2024-02-29
申请号:US18454259
申请日:2023-08-23
Inventor: Lucian HOTOIU , Rudi LABARBE , François VANDER STAPPEN , Julia PAKELA , Boonkeng Kevin TEO , Wei ZOU
IPC: G01N23/046 , A61N5/10 , B33Y80/00 , G01N9/24 , G01N23/06
CPC classification number: G01N23/046 , A61N5/10 , A61N5/103 , A61N5/1071 , B33Y80/00 , G01N9/24 , G01N23/06 , A61N2005/1095
Abstract: The present invention concerns a method for assessing a quality of a beam shaping device (11) manufactured according to a planned device design (11d) for shaping a beam (100.i) of accelerated particles emitted by a particle accelerator system, the method comprising,
(a) establishing with a treatment planning system (TPS) the planned device design (11d) of the beam shaping device,
(b) manufacturing the beam shaping device according to the planned device design,
(c) establishing a CT-scan of the beam shaping device to yield an actual CT-image (11a),
(d) determining dimensions and local materials densities from the actual CT-image,
(e) determining a calculated dose distribution in the treatment volume (V) obtained by virtually irradiating the treatment volume with the beam through a virtual beam shaping device having a geometry and a density defined by the device actual CT-image,
(f) comparing the calculated dose distribution (cDD) with a reference dose distribution (rDD).
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公开(公告)号:US11826582B2
公开(公告)日:2023-11-28
申请号:US17313453
申请日:2021-05-06
Applicant: Zap Surgical Systems, Inc.
Inventor: Raymond Wilbur , Younes Achkire , Manoocher Birang
CPC classification number: A61N5/1042 , A61N5/1081 , G01B11/27 , G21K1/025 , G21K1/046 , A61N2005/1095
Abstract: Devices, systems and method that allow for delivery of therapeutic radiation beams of differing sizes or shapes during a radiation treatment are provided herein. Such devices can include a rotatable collimator body having multiple collimator channels of differing size or shape defined therein, the channels extending through the collimator body substantially perpendicular to the axis of rotation. The collimator body can include markers thereon to facilitate detection of an alignment position by a sensor of a control system to allow the collimator body to be rapidly and accurately moved between alignment positions to facilitate delivery of differing therapy beams during a treatment.
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公开(公告)号:US20230264041A1
公开(公告)日:2023-08-24
申请号:US18004160
申请日:2021-07-02
Inventor: Chris J. Beltran , Keith M. Furutani
IPC: A61N5/10
CPC classification number: A61N5/10 , A61N2005/1087 , A61N2005/1095
Abstract: A variable thickness energy selection system for use in a charged particle therapy system is arranged within the nozzle housing downstream of monitoring systems, such as a dose monitor and spot position monitor. This positions the energy selection system proximal to the patient. The thickness of an absorber within the energy selection system can be varied quickly without requiring the ion beam to be turned off between energy selections, thereby allowing for rapid control of the energy selection of the ion beam. The absorber may include one or more high density solid absorbers, or a high-density liquid absorber contained in a closed fluid dynamic system that includes an enclosure positioned within the beam path and a reservoir positioned outside of the beam path.
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公开(公告)号:US20230249002A1
公开(公告)日:2023-08-10
申请号:US17984954
申请日:2022-11-10
Applicant: TAE TECHNOLOGIES, INC.
Inventor: Alexander Dunaevsky , Artem N. Smirnov , Alexandr A. Ivanov , Vladislav Vekselman
CPC classification number: A61N5/1077 , A61N5/1048 , H05H5/03 , H05H5/063 , A61N2005/109 , A61N2005/1095
Abstract: Embodiments of systems, devices, and methods relate to a beam system. An example beam system includes a charged particle source configured to generate a beam of charged particles, a pre-accelerator system configured to accelerate the beam, and an accelerator configured to accelerate the beam from the pre-accelerator system. The pre-accelerator system can cause the beam to converge as it is propagated from the source to an input aperture of the accelerator. The pre-accelerator system can further reduce or eliminate source disturbance or damage caused by backflow traveling from the accelerator toward the source.
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公开(公告)号:US20230239991A1
公开(公告)日:2023-07-27
申请号:US18000052
申请日:2021-05-28
Applicant: Elekta Limited
Inventor: Ian Shinton , Shaikh Mohammad Ismail Abdul GAFFAR
CPC classification number: H05H7/22 , H05H9/00 , H05H7/02 , H01P1/042 , H01P3/12 , A61N5/1078 , H05H2007/025 , H05H2277/11 , A61N2005/1095
Abstract: A reusable joint for a medical linac, a reusable CF choke flange for a medical linac, a linac and a method for forming a reusable joint for a medical linac are disclosed. The reusable joint comprises a CF choke flange, a CF cover flange and a gasket. The CF choke flange comprises a first waveguide aperture, a choke groove and a first CF groove comprising a first knife-edge, wherein the choke groove is disposed radially inwards from the first CF groove on the CF choke flange. The CF cover flange comprises a second waveguide aperture aligned with the first waveguide aperture and a second CF groove comprising a second knife-edge and aligned with the first CF groove. The gasket is disposed between and in contact with the first CF groove and the second CF groove.