利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

10 条记录 (耗时 0.011 秒)

    RADIOTHERAPEUTIC APPARATUS
    1.
    发明公开
    RADIOTHERAPEUTIC APPARATUS 有权
    放疗APPLIANCE

    公开(公告)号：EP1858589A1

    公开(公告)日：2007-11-28

    申请号：EP06709949.9

    申请日：2006-03-01

    申请人： Elekta AB (publ)

    发明人： Brown, Kevin

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1042 ,  A61N5/1047

    摘要： The present invention seeks to provide a radiotherapeutic apparatus that mitigates the various problems found in the techniques such as tomotherapy, IMAT, IMRT and the like. It provides a radiotherapeutic apparatus comprising a source of radiation whose output is collimated by a multi-leaf collimator, and a patient support, the source being rotateable around the support and the support being translatable along the axis of rotation, thereby to move the source helically relative to a patient on the support. The leaves of the MLC are preferably oriented orthogonal to the axis of rotation, to simplify computation of the dose distribution. The apparatus thus moves the patient on the patient support system along the axis of rotation, in the longitudinal direction. Thus, the device has an effectively unlimited treatable volume in the longitudinal direction and avoids the limitations of IMAT and IMRT techniques whilst enabling the use of thin MLC leaves to give a high longitudinal resolution. The apparatus is preferably combined with an optimisation system providing a computational service similar to that provided for IMAT and IMRT devices. Essentially the same computational techniques could be used, with appropriate changes to the input conditions and characteristic equations. The long aperture length (compared to tomotherapy) makes the radiation delivery efficient and therefore the delivery of high doses a practicality; hypofractionation and radiosurgery therefore become possible over large treatable volumes.

    Radiotherapy beam alignment
    3.
    发明公开
    Radiotherapy beam alignment 审中-公开
    Strahlentherapie Strahlausrichtung

    公开(公告)号：EP2865419A1

    公开(公告)日：2015-04-29

    申请号：EP14188422.1

    申请日：2014-10-10

    申请人： ELEKTA AB (publ.)

    发明人： Brown, Kevin ,  Roberts, David ,  Harasimowicz, Janusz ,  Sell, Martin ,  Byrne, Julian ,  Fuerst, Armin

    IPC分类号： A61N5/10

    CPC分类号： A61B6/584 ,  A61B6/582 ,  A61B6/583 ,  A61B2560/0228 ,  A61N5/1048 ,  A61N5/1049 ,  A61N5/1075 ,  A61N2005/1052 ,  A61N2005/1055 ,  A61N2005/1076

    摘要： A method of aligning the radiation beam in a radiotherapy system comprising a source for producing a beam of radiation and a device for imaging from the beam, both mounted so as to be rotatable about an axis using a fiducial phantom between the source and the device, the method comprising: rotating the beam and device in a trajectory about the axis while obtaining a plurality of images of the fiducial phantom from a plurality of different angles, determining from each image of the fiducial phantom the position of the source at the rotational position the image was obtained, and calculating the centre of rotation of the positions of the source to define the isocentre of the system. The invention enables the alignment of a collimator with the source of radiation, the reduction of asymmetry in beam intensity, and is also applicable to magnetic resonance-guided radiotherapy.

    摘要翻译： 一种在放射治疗系统中对准辐射束的方法，该放射治疗系统包括用于产生辐射束的源和用于从束成像的装置，两者被安装成可以在源和装置之间使用基准体模绕轴旋转， 该方法包括：在从多个不同的角度获得基准体模的多个图像的同时围绕轴线的轨迹旋转光束和设备，从基准体模的每个图像确定源在旋转位置处的位置， 获得图像，并计算源的位置的旋转中心以定义系统的等中心。 本发明使得准直器与辐射源的对准，光束强度的不对称性的降低，并且也适用于磁共振引导放射治疗。

    Radiotherapy and imaging apparatus
    4.
    发明公开
    Radiotherapy and imaging apparatus 有权
    放射治疗和成像设备

    公开(公告)号：EP2359905A1

    公开(公告)日：2011-08-24

    申请号：EP11000965.1

    申请日：2011-02-07

    申请人： Elekta AB (PUBL)

    发明人： Allen, John ,  Bourne, Duncan ,  Brown, Kevin

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1045 ,  A61N5/1042 ,  A61N5/1049 ,  A61N5/1081 ,  A61N2005/1054 ,  A61N2005/1055

    摘要： Radiotherapy apparatus comprises a source of radiation mounted on a chassis, the chassis being rotatable about a rotation axis and the source being adapted to emit a beam of radiation along a beam axis that intersects with the rotation axis; a patient support, moveable along a translation axis; a set of magnetic coils located on either side of the beam, for establishing a magnetic field at the point of intersection, spaced from that point along a first direction; the translation axis, the rotation axis, and the first direction being substantially parallel; and further comprising a multi-leaf collimator fixed in its orientation with respect to the source of radiation, the multi-leaf collimator comprising a plurality of elongate leaves disposed with their longitudinal directions substantially aligned with the first direction and movable in that direction between a withdrawn position in which the leaf lies outside the beam, an extended position in which the leaf projects across the beam and a plurality of intermediate positions therebetween.

    摘要翻译： 放射治疗设备包括安装在底盘上的辐射源，底盘可围绕旋转轴旋转，并且源适于沿与旋转轴相交的束轴发射辐射束; 可沿着平移轴移动的患者支撑件; 位于所述光束的任一侧上的一组磁性线圈，用于在所述交叉点处建立磁场，所述磁场沿着第一方向与该点间隔开; 平移轴线，旋转轴线和第一方向基本平行; 并且进一步包括相对于辐射源固定在其取向上的多叶准直器，所述多叶准直器包括多个细长叶片，所述多个细长叶片的纵向方向基本上与所述第一方向对齐，并且可以在该方向上在收回 叶子位于横梁外的位置，叶子突出横梁的延伸位置以及其间的多个中间位置。

    Radiotherapy apparatus
    5.
    发明公开
    Radiotherapy apparatus 审中-公开
    Strahlentherapievorrichtung

    公开(公告)号：EP2630989A1

    公开(公告)日：2013-08-28

    申请号：EP12156604.6

    申请日：2012-02-22

    申请人： ELEKTA AB (publ.)

    发明人： Brown, Kevin ,  Winfield, Colin ,  Allen, John

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1049 ,  A61N2005/1061

    摘要： The present invention provides a radiotherapy system and associated method which combines radiotherapy with an integrated imaging system (such as CT). Samples of imaging data are acquired at a higher frequency than the simultaneous pulses of radiation generated for therapy, and thus samples which include scattered therapeutic radiation can be discarded. The remaining samples of imaging data can be processed to provide images with reduced artefacts and increased signal-to-noise ratio.

    摘要翻译： 本发明提供了一种将放射疗法与集成成像系统（例如CT）组合的放射治疗系统和相关方法。 以比为治疗产生的辐射的同时脉冲更高的频率获取成像数据的样本，因此可以丢弃包括分散的治疗辐射的样品。 可以处理剩余的成像数据样本以提供具有减少的伪像和增加的信噪比的图像。

    Radiotherapy and imaging apparatus
    7.
    发明授权
    Radiotherapy and imaging apparatus 有权
    Strahlentherapie和Abbildungsvorrichtung

    公开(公告)号：EP2359905B1

    公开(公告)日：2013-06-19

    申请号：EP11000965.1

    申请日：2011-02-07

    申请人： Elekta AB (PUBL)

    发明人： Allen, John ,  Bourne, Duncan ,  Brown, Kevin

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1045 ,  A61N5/1042 ,  A61N5/1049 ,  A61N5/1081 ,  A61N2005/1054 ,  A61N2005/1055

    摘要： Radiotherapy apparatus comprises a source of radiation mounted on a chassis, the chassis being rotatable about a rotation axis and the source being adapted to emit a beam of radiation along a beam axis that intersects with the rotation axis; a patient support, moveable along a translation axis; a set of magnetic coils located on either side of the beam, for establishing a magnetic field at the point of intersection, spaced from that point along a first direction; the translation axis, the rotation axis, and the first direction being substantially parallel; and further comprising a multi-leaf collimator fixed in its orientation with respect to the source of radiation, the multi-leaf collimator comprising a plurality of elongate leaves disposed with their longitudinal directions substantially aligned with the first direction and movable in that direction between a withdrawn position in which the leaf lies outside the beam, an extended position in which the leaf projects across the beam and a plurality of intermediate positions therebetween.

    摘要翻译： 辐射治疗装置包括安装在底盘上的辐射源，底盘可围绕旋转轴线旋转，并且该源适于沿着与旋转轴线相交的束轴发射辐射束; 患者支架，可沿平移轴移动; 位于所述梁的任一侧的一组磁性线圈，用于在所述交叉点建立磁场，沿着所述第一方向与所述点间隔开; 平移轴，旋转轴和第一方向基本上平行; 并且还包括相对于所述辐射源固定在其取向的多叶准直器，所述多叶准直器包括多个细长的叶片，所述多叶片准直器的纵向方向基本上与所述第一方向对准，并且在所述方向上可移动， 位于其中叶位于梁的外部的位置，延伸位置，其中叶突出穿过梁以及其间的多个中间位置。

    Radiotherapy and imaging apparatus
    10.
    发明公开
    Radiotherapy and imaging apparatus 有权
    Strahlentherapie和Abbildungsvorrichtung

    公开(公告)号：EP2359906A1

    公开(公告)日：2011-08-24

    申请号：EP11000966.9

    申请日：2011-02-07

    申请人： Elekta AB (PUBL)

    发明人： Allen, John ,  Brown, Kevin

    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，包括第一磁性线圈和第二电磁线圈的成像装置，所述第一和第二磁性线圈具有平行于所述平移轴线的公共中心轴线， 沿着中心轴线彼此之间形成间隙，所述成像装置被配置为获得患者支架上的患者的图像，安装在底盘上的辐射源，所述底架可围绕所述中心轴线旋转，所述源体为 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， 扩展位置，其中叶跨越光束突出，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。