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    RADIOTHERAPY AND IMAGING APPARATUS
    11.
    发明申请
    RADIOTHERAPY AND IMAGING APPARATUS 有权
    放射治疗和成像装置

    公开(公告)号：US20170021196A1

    公开(公告)日：2017-01-26

    申请号：US15285301

    申请日：2016-10-04

    申请人： Elekta AB (publ)

    发明人： John Allen ,  Kevin Brown

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1049 ,  A61N5/1042 ,  A61N5/1045 ,  A61N5/1048 ,  A61N5/1071 ,  A61N5/1081 ,  A61N2005/1054 ,  A61N2005/1055 ,  G01R33/4808

    摘要： A radiotherapy system comprises a patient support, moveable along a translation axis, an imaging apparatus, comprising a first magnetic coil and a second magnetic coil, the first and second magnetic coils having a common central axis parallel to the translation axis, and being displaced from one another along the central axis to form a gap therebetween, the imaging apparatus being configured to obtain an image of a patient on the patient support, a source of radiation mounted on a chassis, the chassis being rotatable about the central axis and the source being adapted to emit a beam of radiation through the gap along a beam axis that intersects with the central axis, a multi-leaf collimator comprising a plurality of elongate leaves movable between at least a withdrawn position in which the leaf lies outside the beam, and an extended position in which the leaf projects across the beam, and a radiation detector mounted to the chassis opposite the source, the radiation detector having a plurality of detector elements aligned with the elongate leaves when projected onto an isocentric plane.

    摘要翻译： 放射治疗系统包括可沿着平移轴线移动的患者支架，包括第一电磁线圈和第二电磁线圈的成像装置，所述第一和第二磁线圈具有平行于所述平移轴的公共中心轴线， 另一个沿着中心轴线在其间形成间隙，成像装置被配置为获得病人支撑物上的患者的图像，安装在底盘上的辐射源，底盘可围绕中心轴线旋转， 适于沿着与所述中心轴相交的束轴发射通过所述间隙的辐射束;多叶准直器，包括多个细长叶片，所述多叶片准直器至少在所述叶片位于所述梁的外部的撤回位置之间移动， 延伸位置，其中叶片跨过梁进行突出，以及辐射检测器，安装到底盘与源相对，辐射探测器具有ap 当投影到等中心平面上时，检测器元件与细长叶片对准的灵敏度。

    Image-guided radiotherapy
    12.
    发明授权
    Image-guided radiotherapy 有权
    图像引导放射治疗

    公开(公告)号：US09526917B2

    公开(公告)日：2016-12-27

    申请号：US14266622

    申请日：2014-04-30

    申请人： Elekta AB (Publ)

    发明人： Per Carlsson

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1067 ,  A61B6/032 ,  A61N5/1049 ,  A61N5/107 ,  A61N5/1081 ,  A61N2005/1061

    摘要： 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.

    摘要翻译： 放射治疗装置包括可旋转机架，支撑治疗辐射源和诊断辐射源。 两个源可以围绕台架的旋转轴线旋转间隔开，其中至少一个准直器与治疗辐射源相关联并且被布置成限制由该源产生的梁的横截面面积。 控制装置可以被布置成通过使装置使用诊断辐射源获取患者的图像，使用该装置进行治疗分数，至少暂时保留那些图像，选择当诊断辐射源为 在对应于治疗辐射源的瞬时旋转位置的旋转位置处，并且使用从所选择的图像导出的信息来控制相对于患者的束。

    Radiotherapy apparatus
    13.
    发明授权
    Radiotherapy apparatus 有权
    放射治疗仪

    公开(公告)号：US09522286B2

    公开(公告)日：2016-12-20

    申请号：US14524605

    申请日：2014-10-27

    申请人： Elekta AB (Publ)

    发明人： Per Harald Bergfjord ,  Francesco Gnoato

    IPC分类号： A61N5/01 ,  A61N5/10

    CPC分类号： A61N5/1081 ,  A61N5/01 ,  A61N2005/1057

    摘要： A radiotherapy apparatus includes a rotatable drum on which is mounted a gantry arm carrying a radiation source, the arm extending from the drum to locate the source is offset from the axis of rotation of the drum and oriented towards the axis, and a mechanism to apply a tilt to the arm depending on the rotational orientation of the drum.

    摘要翻译： 放射治疗装置包括可旋转的鼓，其上安装有承载辐射源的龙门臂，从鼓延伸以定位源的臂从鼓的旋转轴线偏离并且朝向轴定向，并且应用机构 根据鼓的旋转方向倾斜到臂。

    Dual-energy cone-beam CT scanning
    15.
    发明授权
    Dual-energy cone-beam CT scanning 有权
    双能锥束CT扫描

    公开(公告)号：US09414790B2

    公开(公告)日：2016-08-16

    申请号：US13651818

    申请日：2012-10-15

    申请人： Elekta AB (publ)

    发明人： Malcolm Williams

    IPC分类号： A61B6/03 ,  A61B6/04 ,  A61B6/00 ,  A61N5/10

    CPC分类号： A61B6/0421 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/405 ,  A61B6/482 ,  A61B6/542 ,  A61N5/1049 ,  A61N2005/1061

    摘要： A CT scanning apparatus includes a control apparatus arranged to cause a first rotation of a gantry and trigger an x-ray source to emit x-radiation at a first x-ray energy when an angular encoder reports that the gantry is at each of multiple predetermined angular locations, and cause a second rotation of the gantry and trigger the x-ray source to emit x-radiation at a second x-ray energy differing from the first x-ray energy when the angular encoder reports that the gantry is at each of the same predetermined angular locations. An image processing means receives the projection images and reconstructs them into a volumetric image. A support couch is provided for the patient, and to minimize the likelihood of movement artifacts, the support couch includes a patient immobilisation system such as an evacuatable bead bag, bite post, or stereotactic frames, or the like.

    摘要翻译： CT扫描装置包括控制装置，其被配置为当角度编码器报告台架处于多个预定的每一个时，引起台架的第一旋转并且触发X射线源以第一x射线能量发射x射线 角度位置，并且引起台架的第二旋转，并且当角度编码器报告台架处于每个位置时，触发X射线源以与第一x射线能量不同的第二x射线能量发射x射线 相同的预定角度位置。 图像处理装置接收投影图像并将其重建为体积图像。 为患者提供支撑床，并且为了最小化运动假象的可能性，支撑椅包括患者固定系统，例如可抽空的珠袋，咬合柱或立体定向框架等。

    Multi-leaf collimators
    17.
    发明授权
    Multi-leaf collimators 有权

    公开(公告)号：US09214249B2

    公开(公告)日：2015-12-15

    申请号：US14565873

    申请日：2014-12-10

    申请人： Elekta AB (publ)

    发明人： Duncan Neil Bourne ,  Ryan David Wightwick

    IPC分类号： A61B6/06 ,  G21K1/04 ,  A61N5/10

    CPC分类号： G21K1/046 ,  A61N5/1042 ,  A61N5/1045 ,  G21K1/04

    摘要： A multi-leaf collimator for a radiotherapy apparatus comprises at least one array of laterally-spaced elongate leaves, each leaf being driven by an associated motor connected to the leaf via a drive means so as to extend or retract the leaf in its longitudinal direction, the drive means comprising a sub-frame on which at least a subset of the motors are mounted, the sub-frame being mounted at a location spaced from the leaf array in a direction transverse to the lateral and longitudinal directions, and including a plurality of threaded drives disposed longitudinally, each being driven by a motor and being operatively connected to a leaf thereby to drive that leaf.

    Portal Dosimetry System
    18.
    发明申请
    Portal Dosimetry System 有权
    门户测量系统

    公开(公告)号：US20150003711A1

    公开(公告)日：2015-01-01

    申请号：US13927391

    申请日：2013-06-26

    申请人： Elekta AB (Publ)

    发明人： Colin Winfield ,  Abdul Sayeed

    IPC分类号： G06T7/00

    CPC分类号： G06T7/0012 ,  A61N5/1071 ,  A61N2005/1054 ,  G06F17/30259 ,  G06F19/00 ,  G06F19/321 ,  G06F19/3481 ,  G06K9/6202 ,  G06T2207/10004 ,  G06T2207/10116 ,  G16H20/40 ,  G16H30/20 ,  G16H50/20

    摘要： 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.

    摘要翻译： 本发明的实施例提供了用于评估经历放射治疗的患者的治疗参数的系统和方法。 该方法包括生成门诊剂量测定图像的步骤，该图像显示在治疗会话之前获得的规划图像与在治疗期间获得的门静图像之间的差异。 访问先前门户剂量测定结果的数据库，并且处理器用于在门户剂量测定图像和先前的门户剂量测定结果之间执行相似性测量。 根据相似性测量，系统确定在治疗期间辐射是否按计划传送。

    Methods and systems in radiotherapy
    19.
    发明申请
    Methods and systems in radiotherapy 有权
    放射治疗方法与系统

    公开(公告)号：US20140341351A1

    公开(公告)日：2014-11-20

    申请号：US13896412

    申请日：2013-05-17

    申请人： Elekta AB (publ)

    发明人： Paul Berwick ,  Christopher Knox

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1045 ,  A61N5/103

    摘要： A method of operating a radiotherapy system, comprising: receiving a treatment plan to be carried out using the radiotherapy system; detecting if there is a fault in a component of the radiotherapy system; determining whether the component is needed for delivery of the treatment plan; and if the component is not needed for delivery of the treatment plan, allowing the radiotherapy system to execute the treatment plan.

    摘要翻译： 一种操作放射治疗系统的方法，包括：接收使用放射治疗系统进行的治疗计划; 检测放射治疗系统的部件是否有故障; 确定该部分是否需要用于交付治疗计划; 并且如果组件不需要用于交付治疗计划，则允许放射治疗系统执行治疗计划。

    System and Method for Improving the Medical Environment
    20.
    发明申请
    System and Method for Improving the Medical Environment 审中-公开
    改善医疗环境的制度与方法

    公开(公告)号：US20140171729A1

    公开(公告)日：2014-06-19

    申请号：US13713246

    申请日：2012-12-13

    申请人： ELEKTA AB (PUBL)

    发明人： Duncan Neil Bourne ,  Daniel Peter Thompson

    IPC分类号： A61M21/00

    CPC分类号： A61M21/00 ,  G06Q50/22 ,  G16H40/20

    摘要： A medical environment can be personalised by displaying themes or visual sequences during the medical procedure. For a repeating medical procedure, the process can be improved by ensuring that the same theme continues from where it left off when the patient was last present. The theme can also include elements that indicate the patient's rate or degree of progress through the medical procedure.

    摘要翻译： 可以通过在医疗过程中显示主题或视觉序列来个性化医疗环境。 对于重复的医疗程序，可以通过确保当患者最后一次出现时从相同的主题继续下去，从而改善过程。 该主题还可以包括通过医疗程序表明患者率或进展程度的要素。