利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

195 条记录 (耗时 0.021 秒)

    Radiation Detector and Radiotherapy Apparatus
    4.
    发明公开
    Radiation Detector and Radiotherapy Apparatus 审中-公开
    辐射探测器和放射治疗仪

    公开(公告)号：EP2708919A3

    公开(公告)日：2017-12-06

    申请号：EP13184676.8

    申请日：2013-09-17

    申请人： ELEKTA AB (publ.)

    发明人： Crijns, Sjoerd ,  Thompson, Maria Giulia ,  Allen, John

    IPC分类号： G01T1/16 ,  A61N5/10 ,  G01T1/29 ,  G01T1/20

    CPC分类号： G01T1/20 ,  A61N5/1045 ,  A61N5/1048 ,  A61N5/1071 ,  A61N2005/1055 ,  G01T1/1603 ,  G01T1/201 ,  G01T1/29

    摘要： The present invention provides a radiation detector (30, 100) which comprises a tube (102) and detector elements (106) distributed over the tube. Such an arrangement can be used to provide information on a radiation beam prior to interaction with a patient and after interaction with the patient. The detector is particularly compact and therefore suited to use with apparatus where space is restricted. By a particular arrangement of detectors and optical fibres (104, 108), the detector can provide data at all angles of rotation.

    摘要翻译： 本发明提供一种辐射探测器（30,100），其包括管（102）和分布在管上的探测器元件（106）。 这样的布置可以用于在与患者交互之前并且在与患者交互之后提供关于辐射束的信息。 该检测器特别紧凑，因此适用于空间受限的设备。 通过检测器和光纤（104,108）的特定布置，检测器可以提供所有旋转角度的数据。

    RADIATION THERAPY DOSE CALCULATION
    5.
    发明公开
    RADIATION THERAPY DOSE CALCULATION 审中-公开
    辐射治疗剂量计算

    公开(公告)号：EP3233186A1

    公开(公告)日：2017-10-25

    申请号：EP15823279.3

    申请日：2015-12-17

    申请人： Sun Nuclear Corp.

    发明人： KAPATOES, Jeffrey, M. ,  SIMON, Thomas, A. ,  SIMON, William, E.

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1039 ,  A61N5/1045 ,  A61N5/1071 ,  A61N5/1075 ,  A61N2005/1034 ,  A61N2005/1054 ,  A61N2005/1055 ,  A61N2005/1061

    摘要： Radiation therapy dose calculation methods, systems and computer program products, for use with a treatment delivery device for treating a patient and utilizing a scattered radiation detector in making independent dose calculations. The scattered radiation detector is configured to acquire measurement information during patient treatment, which is used to determine an estimate of the output of the treatment delivery device. Other information is acquired including patient imaging data, gantry angle information and collimator position information utilized during patient treatment. The acquired information is utilized along with the treatment delivery device output estimate to determine dose delivered to the patient.

    摘要翻译： 与用于治疗患者的治疗输送装置一起使用的放射疗法剂量计算系统包括散射辐射检测器和独立剂量计算器。 散射辐射检测器被配置为在患者治疗期间获取测量信息。 独立剂量计算器被配置为从散射辐射检测器获取测量信息，从散射辐射检测器的采集的测量信息确定治疗输送装置的输出的估计，获取在患者治疗期间利用的机架角度和准直器位置，接收患者成像 数据，并且根据机架角度位置信息，准直器位置信息，患者成像数据以及治疗输送装置的输出的估计来计算输送给患者的剂量。

    SYSTEM AND METHOD FOR DETERMINING A RADIATION TREATMENT PLAN AND A RADIATION THERAPY MACHINE
    7.
    发明公开
    SYSTEM AND METHOD FOR DETERMINING A RADIATION TREATMENT PLAN AND A RADIATION THERAPY MACHINE 有权
    用于确定辐射治疗计划和辐射治疗机的系统和方法

    公开(公告)号：EP3175885A1

    公开(公告)日：2017-06-07

    申请号：EP15197756.8

    申请日：2015-12-03

    申请人： RaySearch Laboratories AB

    发明人： Bokrantz, Rasmus ,  Hårdemark, Björn

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1038 ,  A61N5/103 ,  A61N5/1045 ,  A61N5/1047 ,  A61N5/1071

    摘要： An output radiation treatment plan (P) for at least one target in a treatment volume is determined. Each of the at least one target is associated with a respective prescribed radiation dose. An updated treatment plan (UTP) is configured to cause the respective prescribed radiation dose to be delivered to the at least one target when implemented by a radiation therapy machine. The updated treatment plan (UTP) requires an updated delivery time (T UTP ) to complete and is calculated by executing the steps:
    [i] receiving a numerical value (ME) designating an upper bound on modulation efficiency of the updated treatment plan (UTP),
    [ii] receiving a current treatment plan (CTP),
    [iii] calculating a current delivery time (T CTP ) for the current treatment plan (CTP),
    [iv] calculating an un-modulated delivery time (T UM ) for the current treatment plan (CTP), and
    [v] calculating the updated treatment plan (UTP) by executing an optimization process while satisfying the upper bound on the modulation efficiency.
    Steps [ii] to [v] are traversed a predetermined number of times. Thereafter, the output radiation treatment plan (P) generated based on the updated treatment plan (UTP).

    摘要翻译： 确定治疗体积中的至少一个目标的输出放射治疗计划（P）。 至少一个目标中的每一个与相应的规定的辐射剂量相关联。 更新的治疗计划（UTP）被配置为当由放射治疗机器实施时使得相应的规定的放射剂量被递送到至少一个目标。 更新的治疗计划（UTP）需要更新的交付时间（TUTP）来完成，并且通过执行以下步骤来计算：[i]接收指定更新的治疗计划（UTP）的调制效率上限的数值（ME） ，[ii]接收当前治疗计划（CTP），[iii]计算当前治疗计划（CTP）的当前传递时间（TCTP），[iv]计算当前治疗的未调制传递时间（TUM） 计划（CTP），[v]通过在满足调制效率的上限的同时执行优化过程来计算更新的治疗计划（UTP）。 步骤[ii]至[v]遍历预定次数。 此后，根据更新的治疗计划（UTP）生成输出放射治疗计划（P）。

    SYSTEM AND METHOD FOR DETERMINING A RADIATION TREATMENT PLAN
    8.
    发明授权
    SYSTEM AND METHOD FOR DETERMINING A RADIATION TREATMENT PLAN 有权
    确定辐射治疗计划的系统和方法

    公开(公告)号：EP3075416B1

    公开(公告)日：2017-06-07

    申请号：EP15162398.0

    申请日：2015-04-02

    申请人： RaySearch Laboratories AB

    发明人： Hårdemark, Björn ,  Fredriksson, Albin ,  Bokrantz, Rasmus

    IPC分类号： A61N5/10

    CPC分类号： A61N5/103 ,  A61N5/1045

    摘要： A radiation treatment plan is determined for a treatment volume associated with a target and at least one organ-at-risk. For each delivery direction, a respective description is determined defining how an amount of radiant energy from a radiation source shall be distributed over a projection area, by the consecutive steps: [1] receiving a current fluence map defining a radiation dose to be delivered to the at least one target; [2] receiving a current control-point sequence describing machine settings for a collimator associated with the radiation source, the machine settings defining at least one parameter for an output beam of radiation from the radiation source; [3] determining an updated fluence map (FM') and an updated control-point sequence based on the current fluence map, the current control-point sequence and an objective function quantifying at least one quality of the radiation dose with respect to a predefined goal; [4] determining a further updated control-point sequence based on the updated control-point sequence and the updated fluence map (FM'), the further updated control-point sequence describing how, with respect to an error-minimizing function, to adjust the machine settings to approximate an amount of radiant energy defined by the updated control-point sequence and the updated fluence map (FM'), [5] determining a further updated fluence map based on the updated fluence map (FM'), the updated control-point sequence and the further updated control-point sequence; [6] checking if a stopping criterion is fulfilled; if so: stopping the process, and producing an output radiation treatment plan based on the further updated control-point sequence; and otherwise: setting the further updated fluence map, or zero, to the current fluence map; setting the further updated control-point sequence to the current control-point sequence; and returning to step [3].

    摘要翻译： 为与目标相关的治疗量和至少一个风险器官确定放射治疗计划。 对于每个传送方向，通过连续的步骤确定相应描述，以定义如何将来自辐射源的辐射能量分布在投影区域上：[1]接收定义要传送的辐射剂量的电流注量图 该至少一个目标; [2]接收描述与所述辐射源相关联的准直器的机器设置的当前控制点序列，所述机器设置定义来自所述辐射源的输出辐射束的至少一个参数; [3]基于当前注量图，当前控制点序列和目标函数来确定更新的注量图（FM'）和更新的控制点序列，所述目标函数相对于预定义量化辐射剂量的至少一个质量 目标; [4]基于更新的控制点序列和更新的注量图（FM'）确定进一步更新的控制点序列，所述进一步更新的控制点序列描述如何相对于误差最小化函数来调整 机器设置近似由更新的控制点序列和更新的注量图（FM'）定义的辐射能量的量，[5]基于更新的注量图（FM'）确定进一步更新的注量图，更新的 控制点序列和进一步更新的控制点序列; [6]检查是否满足停止标准; 如果是的话：停止该过程，并基于该更新的控制点序列产生输出放射治疗计划; 否则：将进一步更新的注量图或零设置为当前注量图; 将进一步更新的控制点序列设置为当前控制点序列; 并返回步骤[3]。

    MULTILEAF COLLIMATOR, AND RADIATION THERAPY APPARATUS AND RADIATION THERAPY SYSTEM USING SAME
    9.
    发明公开
    MULTILEAF COLLIMATOR, AND RADIATION THERAPY APPARATUS AND RADIATION THERAPY SYSTEM USING SAME 审中-公开
    MEHRBLATTKOLLIMATOR UND STRAHLENTHERAPIEVORRICHTUNG SOWIE STRAHLENTHERAPIES SYSTEM SYSTEMS DAMIT

    公开(公告)号：EP3053628A4

    公开(公告)日：2017-05-17

    申请号：EP13895057

    申请日：2013-10-04

    申请人： MITSUBISHI HEAVY IND LTD

    发明人： TAKAHASHI KUNIO ,  MIYAMOTO AKIHIRO

    IPC分类号： A61N5/10 ,  G21K1/04

    CPC分类号： A61N5/1045 ,  G21K1/046

    摘要： A multileaf collimator (60A) includes leaves (70) that extend in a first direction; a frame (61) that supports the plurality of leaves (70) so that the plurality of leaves (70) are advanceable and retractable in a state where the plurality of leaves (70) are placed side by side in a second direction perpendicular to the first direction; a plurality of shafts (95) that extend in the second direction and are provided to correspond to the plurality of leaves (70), respectively; a plurality of driving units (91) that are respectively connected to base ends of the plurality shafts and rotate the shafts (95) around axial lines; and driving units (91) that are provided at tips of the shafts (95), contact portions of the leaves (70), and advance and retract the leaves (70) in the first direction by the rotation of the shafts (95) around the axial lines. At least some of the plurality of shafts (95) have the same shaft (95) length as each other. The plurality of driving units (91) are arranged so that the positions thereof in the second direction are shifted from each other according to the positions of the tips of the plurality of shafts (95) having the same length.

    摘要翻译： 多叶准直器（60A）包括在第一方向上延伸的叶片（70） 支撑所述多个叶片（70）的框架（61），使得所述多个叶片（70）能够在所述多个叶片（70）沿垂直于所述多个叶片（70）的第二方向并排放置的状态下前进和缩回 第一方向; 多个轴（95），其沿所述第二方向延伸并被设置成分别与所述多个叶片（70）对应; 多个驱动单元（91），所述多个驱动单元（91）分别连接到所述多个轴的基端并且使所述轴（95）围绕轴线旋转; ，以及设置在所述轴（95）的末端处的叶片（70）的接触部分，并且通过围绕所述轴（95）的所述轴（95）的旋转在所述第一方向上使所述叶片（70）前进和后退的驱动单元（91） 轴线。 多个轴（95）中的至少一些具有彼此相同的轴（95）长度。 多个驱动单元（91）被布置为使得其在第二方向上的位置根据具有相同长度的多个轴（95）的尖端的位置彼此偏移。