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253 条记录 (耗时 0.025 秒)

    RADIOTHERAPY APPARATUS
    141.
    发明授权
    RADIOTHERAPY APPARATUS 有权

    公开(公告)号：EP3222322B1

    公开(公告)日：2018-09-26

    申请号：EP17167798.2

    申请日：2012-12-14

    申请人： Elekta AB (PUBL)

    发明人： BURT, David ,  BOXALL, Paul

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1071 ,  A61N5/103 ,  A61N5/1048 ,  A61N5/1067 ,  A61N5/1081

    摘要： We have found a superior method for dealing with the effects of inertia in a radiotherapy apparatus. We propose to cater for inertia in advance by incorporating inertia factors into an output from a delivery control system which adapts the treatment plan by incorporating the inertia factors, or by including the inertia factors as a constraint in the treatment planning process. Therefore, instead of instructing the machine to make movements which assume perfect inertia-less behaviour by the geometry item and then compensating for this afterwards, the instructions delivered to the geometry items will reflect their inertia behaviour and can therefore be followed very closely. This, in turn, means that a departure from that plan will be correspondingly more likely to indicate an error by the geometry item. It will no longer be routine for errors to arise when a geometry item needs to accelerate or decelerate and thus the error-checking regime need not make allowances for such departures from the intended path. That, in turn, means that the error tolerances can be correspondingly tighter. Those tighter tolerances mean that the error-checking can safely be carried out locally for each component.

    RADIOTHERAPY DOSE DISTRIBUTION MEASUREMENT
    142.
    发明公开
    RADIOTHERAPY DOSE DISTRIBUTION MEASUREMENT 审中-公开
    放射治疗剂量分布测量

    公开(公告)号：EP3315170A2

    公开(公告)日：2018-05-02

    申请号：EP17194941.5

    申请日：2017-10-05

    申请人： Elekta AB (PUBL)

    发明人： Pencea, Corneliu ,  Harasimowicz, Janusz ,  Marinos, Nikolas ,  Byrne, Julian

    IPC分类号： A61N5/10 ,  G01T1/29

    摘要： A method for the measurement of dose distribution in radiotherapy apparatus comprising an apparatus for generating a beam of therapeutic radiation and an imaging apparatus, one or both apparatuses being mounted to a rotatable gantry adapted in use to rotate around a bore of the radiotherapy apparatus and around an isocentre therein, the method comprising: placing a detector holder within a tank, the detector holder comprising a radio-opaque marker and a visual reference point, the marker and the reference point being separated and in a fixed spatial relationship to each other, and the tank in use containing a liquid having a surface level uppermost; locating the tank within the bore such that the detector holder is in the vicinity of the isocentre; rotating the gantry and monitoring the position of the detector holder using the imaging apparatus to determine the position of the marker relative to the isocentre; displacing the detector holder vertically such that the reference point is positioned at a point level with a desired surface level of the liquid, and adding liquid to or removing liquid from the tank until the surface of the liquid is at the same level as the reference point. Features of the detector holder and tank are also described.

    摘要翻译： 一种用于测量辐射治疗设备中的剂量分布的方法，该方法包括用于产生治疗辐射束的设备和成像设备，一个或两个设备安装在可旋转机架上，该机架适合用于围绕放射治疗设备的孔旋转并围绕 所述方法包括：将检测器保持器放置在罐中，所述检测器保持器包括不透射线的标记和视觉参考点，所述标记和所述参考点彼此分离并且彼此固定的空间关系，以及 使用中的罐包含具有最高表面水平的液体; 将所述罐定位在所述孔内，使得所述检测器保持器位于所述等中心附近; 旋转机架并使用成像装置监测检测器支架的位置以确定标记相对于等中心的位置; 垂直地移动探测器支架，使得参考点位于具有期望的液体表面水平的点水平面上，并且将液体添加到水箱或从水箱移除液体，直到液体的表面与参考点处于相同水平 。 还介绍了探测器支架和水箱的特点。

    STEREOTACTIC SURGICAL INSTRUMENT
    144.
    发明公开
    STEREOTACTIC SURGICAL INSTRUMENT 有权
    立体外科手术器械

    公开(公告)号：EP3229720A1

    公开(公告)日：2017-10-18

    申请号：EP14820818.4

    申请日：2014-12-15

    申请人： Elekta AB (PUBL)

    发明人： NYMAN, Markus ,  RURLING, Erik

    IPC分类号： A61B34/00

    CPC分类号： A61B90/11 ,  A61B2017/00477

    摘要： A stereotactic surgical instrument for use in stereotactical therapy and surgery and a coupling mechanism for such an instrument is disclosed. The stereotactic surgical instrument includes a semi-circular arc part and a head frame. The head frame is arranged for fixation to a head of a patient by pins or screws. The arc part includes coupling members shaped as rings arranged at a fixed distance from each other for attaching and locking the arc part to the head frame. The head frame includes support members formed as rings for receiving corresponding coupling members. Each coupling member includes a pivotable clamp element arranged to partly surround a respective support member circumferentially when the arc part is coupled to the head frame. The coupling members include locking elements arranged to receive a tip portion of the respective clamp element and adjustable locking knobs for tightening and locking respective coupling member to respective support member.

    摘要翻译： 本发明涉及立体手术领域。 具体而言，本发明涉及用于立体定向治疗和手术的立体定向手术器械以及用于这种器械的耦合机构。 立体定向手术器械包括半圆弧形部分（28）和头部框架（24），其中头部框架布置成通过销钉或螺钉固定到患者的头部，其中，圆弧部分包括连接构件 （30），其形状为彼此以固定距离设置的环，用于将弧形部分附接和锁定到头部框架，其中头部框架包括形成为用于接收相应联接部件的环的支撑部件，其中每个联接部件包括可枢转夹具 当所述弧形部件联接到所述头部框架上时，所述元件被布置成沿周向部分地围绕相应的支撑构件，并且其中所述联接构件包括布置成接收相应的夹紧元件的末端部分的锁定元件以及用于拧紧和锁定相应联接器的可调节的锁定旋钮 成员分别支持成员。

    CT IMAGING APPARATUS AND METHODS
    147.
    发明公开
    CT IMAGING APPARATUS AND METHODS 审中-公开
    CT-BILDGEBUNGSGERÄTUNDERVERHREN

    公开(公告)号：EP3111847A1

    公开(公告)日：2017-01-04

    申请号：EP16174716.7

    申请日：2011-02-04

    申请人： Elekta AB (PUBL)

    发明人： KNOX, Christopher Charles ,  WINFIELD, Colin ,  BROWN, Kevin

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

    CPC分类号： A61B6/032 ,  A61B6/4233 ,  A61B6/466 ,  A61N2005/1061

    摘要： A method of imaging a patient, in an apparatus comprising a patient support on which the patient may be positioned, and a rotatable gantry supporting a source of imaging radiation for generating a radiation beam towards the patient, and a detector for detecting the radiation beam after interaction with the patient, the detector operating in a cyclical pattern of an exposure phase followed by a readout phase. The method comprises, for a first detector cycle in which the gantry has a first angle of rotation, controlling the source of radiation to emit a first radiation beam pulse during the exposure phase, and reading out respective first imaging data during the readout phase. The method further comprises, for a second, subsequent detector cycle, determining if the gantry has rotated through at least a threshold angular displacement relative to said first angle of rotation, if so, controlling the source of radiation to emit a second radiation beam pulse during the exposure phase, and reading out respective second imaging data during the readout phase.

    摘要翻译： 一种对患者进行成像的方法，包括可在其上定位患者的患者支架的装置以及支撑用于向患者产生辐射束的成像辐射源的可旋转机架，以及用于检测辐射束之后的检测器 与患者的相互作用，检测器以曝光阶段的循环图案操作，接着是读出阶段。 该方法包括对于其中机架具有第一旋转角度的第一检测器循环，在曝光阶段期间控制辐射源发射第一辐射束脉冲，并且在读出阶段期间读出相应的第一成像数据。 该方法还包括，对于第二个随后的检测器周期，确定台架是否相对于所述第一旋转角度已经旋转了至少一个阈值角位移，如果是，则控制辐射源发射第二辐射束脉冲 曝光阶段，并且在读出阶段期间读出相应的第二成像数据。

    A frame for fixation of equipment to the head of a patient during neurological diagnosis, stereotactic imaging, therapy or surgery.
    150.
    发明公开
    A frame for fixation of equipment to the head of a patient during neurological diagnosis, stereotactic imaging, therapy or surgery. 有权
    框架神经学诊断，立体成像，治疗或手术过程中患者的头部固定设备

    公开(公告)号：EP2868288A1

    公开(公告)日：2015-05-06

    申请号：EP13191077.0

    申请日：2013-10-31

    申请人： ELEKTA AB (publ.)

    发明人： Rurling, Erik ,  Wik, Anna ,  Svensson, Malin ,  Alksnis, Ivars ,  Plantz, Marianne ,  Stavervik, Mathias

    IPC分类号： A61B19/00

    CPC分类号： A61B90/14 ,  A61B90/11 ,  A61B2017/00911

    摘要： The present invention relates to a frame (1) for fixation of equipment (10) to the head of a patient during neurological diagnosis, therapy or surgery. The frame (1) is adapted to enclose the head of the patient. The frame (1) comprises a number of mounting slots (2) arranged in said frame (1), said mounting slots (2) being adapted to receive a number of fixation pins adapted to fixate said frame (1) to a bone in said head. The frame (1) further comprising two anterior longitudinal posts (3) and two posterior longitudinal posts (4), extending along a longitudinal axis A, an anterior portion (5), adapted to be arranged at the anterior side of the head, said anterior portion (5) interconnecting said two anterior longitudinal posts (3), and a posterior portion (6), adapted to be arranged at the posterior side of the head, said posterior portion (6) interconnecting said two posterior longitudinal posts (4). The anterior longitudinal posts (3) and said posterior longitudinal posts (4) are interconnected with two lateral portions (7), adapted to extend one on each side of said head, and wherein said lateral portions (7) are axially offset, along said longitudinal axis A, with respect to said anterior and posterior portion (5, 6). The present invention further relates to a stereotactic frame system (10) comprising such frame (1).

    摘要翻译： 本发明涉及到神经系统中的诊断，治疗或外科手术设备（10）向患者的头部的固定框架（1）。 所述框架（1）是angepasst以包围患者的头部。 所述框架（1）包括多个安装的插槽（2）在所述框架（1），所述安装槽（2）是angepasst接收多个固定销布置angepasst注视所述框架（1），以在所述A骨 头。 所述框架（1）还包括两个前纵帖（3）和两个后纵帖（4）沿纵向轴线A延伸，到前部（5），angepasst到在头部，说的前侧被布置 前部（5）相互连接，所述两个前纵帖（3），和一个后部（6），以在头的后侧被布置angepasst，所述后部分（6）相互连接，所述两个后纵帖（4） ， 前纵帖（3）和所述后纵帖（4）具有两个侧部相互连接（7），angepasst至在所述头部上的每一侧上延伸的一个，和worin所述侧向部分（7）的轴向偏移，沿所述 纵向轴线A，相对于所述前部和后部（5，6）。 本发明还涉及立体定向框架系统（10）包括搜索帧（1）。