公开(公告)号：US20110049396A1

公开(公告)日：2011-03-03

申请号：US12988596

申请日：2008-04-21

申请人： Mark Alexander Furth ,  Adrian Maxwell Smith

发明人： Mark Alexander Furth ,  Adrian Maxwell Smith

IPC分类号： G21K1/04

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

摘要： A multi-leaf collimator for a radiotherapy apparatus comprises a plurality of elongate leaves mounted in a carriage, the carriage being mounted on a substrate, wherein the leaves are independently moveable relative to the carriage in a longitudinal direction, and the carriage is moveable in that direction relative to the substrate, and a control apparatus arranged to receive a signal representing leaf positions relative to the substrate and being arranged to control the leaf positions relative to the carriage and the carriage positions relative to the substrate so as to achieve those leaf positions relative to the substrate. By allowing the carriage to be driven concurrently with the leaves, the speed of movement of the carriage can be added to that of the leaves. In this way, where leaves are required to make a long traverse they can do so more quickly. Most MLCs have a means for sensing the current positions of the leaves relative to the substrate, such as an optical or mechanical positional feedback system. The control apparatus can therefore compare the current leaf positions to the signalled leaf positions, and move the leaves and the carriage accordingly. Each leaf can be moved according to a difference between the current leaf position and the signalled leaf position, and the carriage can be moved according to an average difference between the current leaf positions and the signalled leaf positions. A corresponding method is also disclosed.

摘要翻译： 用于放射治疗装置的多叶准直器包括安装在托架中的多个细长叶片，滑架安装在基底上，其中叶片可相对于滑架在纵向方向上独立地移动，并且滑架可移动 方向相对于基板，以及控制装置，其布置成接收表示相对于基板的叶位置的信号，并被布置成相对于托架控制叶位置和相对于基板的托架位置，以便实现相对于基板的叶位置 到基底。 通过允许托架与叶片同时驱动，托架的运动速度可以加到叶片的运动速度。 以这种方式，需要叶子做长距离运动，他们可以更快地做到这一点。 大多数MLC具有用于感测叶片相对于基底的当前位置的装置，例如光学或机械位置反馈系统。 因此，控制装置可以将当前叶位置与信号叶位置进行比较，并相应地移动叶片和托架。 每个叶片可以根据当前叶位置和信号叶位置之间的差异来移动，并且可以根据当前叶位置和信号叶位置之间的平均差来移动滑架。 还公开了相应的方法。

公开(公告)号：US20110036356A1

公开(公告)日：2011-02-17

申请号：US12988885

申请日：2008-04-22

申请人： Thomas Arn ,  Per Carlsson ,  Kristian Wiberg

发明人： Thomas Arn ,  Per Carlsson ,  Kristian Wiberg

IPC分类号： A61G13/12

CPC分类号： A61B90/16 ,  A61B17/00491 ,  A61B90/14 ,  A61B90/50 ,  A61B2017/00991

摘要： This invention relates to a fixation device and a method for immobilizing a head of a patient relative a treatment unit or medical device during treatment of the head. The fixation device is provided with an interface unit adapted to be fixated in relation to an adaptor unit for connection to the treatment unit, or to a frame for connection to the medical device. Furthermore, the fixation device is provided with a bite-block for being inserted into a mouth of a patient and a positioning arrangement movably connecting the bite-block to the interface unit. The positioning arrangement is adapted to be fixated by means of an adhesive for fixation of the bite-block such that the head of a patient can be immobilized relative said adaptor unit or frame.

摘要翻译： 本发明涉及一种固定装置和一种在治疗头部期间固定患者头部相对于治疗单元或医疗装置的方法。 固定装置设置有适于相对于用于连接到治疗单元的适配器单元或连接到医疗装置的框架固定的接口单元。 此外，固定装置设置有用于插入患者口中的咬合块和将咬合块可移动地连接到接口单元的定位装置。 定位装置适于通过用于固定咬合块的粘合剂固定，使得可以相对于所述适配器单元或框架固定病人的头部。

公开(公告)号：US20100278306A1

公开(公告)日：2010-11-04

申请号：US12809247

申请日：2007-12-21

申请人： William Robert Pitt

发明人： William Robert Pitt

IPC分类号： A61N5/10

CPC分类号： A61N5/1015 ,  A61N5/1001 ,  A61N5/1064

摘要： During treatment by brachytherapy, radiation passes beyond the target volume and delivers radiation dose to adjacent tissue such as the lungs and, especially in the case of treatment of the left breast, to the heart. The heart is particularly vulnerable to radiation; to minimise the dose it receives in such circumstances, we propose an apparatus for treatment by brachytherapy comprising an X-ray source sized for insertion into a patient, a respiration state monitor, and a control apparatus adapted to receive respiration state information from the respiration state monitor and control the output of the X-ray source; the control apparatus being arranged to operate the X-ray source at a first output level when the respiration state monitor indicates a degree of lung inflation above a first preset threshold and operate the X-ray source at a second and lower output level when the respiration state monitor indicates a degree of lung inflation below a second preset threshold.

摘要翻译： 在通过近距离放射疗法治疗期间，辐射超过目标体积并且将辐射剂量递送到诸如肺的相邻组织，并且特别是在治疗左乳房的情况下向心脏递送。 心脏特别容易受到辐射; 为了最小化在这种情况下接收的剂量，我们提出了一种用于通过近距离放射治疗进行治疗的装置，其包括尺寸适于插入患者的X射线源，呼吸状态监测器和适于从呼吸状态接收呼吸状态信息的控制装置 监测和控制X射线源的输出; 所述控制装置被布置成当所述呼吸状态监测器指示高于第一预设阈值的肺膨胀程度时以第一输出水平操作所述X射线源，并且当呼吸作用时以第二和较低输出水平操作X射线源 状态监视器指示肺通气程度低于第二预设阈值。

公开(公告)号：US20100268308A1

公开(公告)日：2010-10-21

申请号：US12424240

申请日：2009-04-15

申请人： Christian ROSSBY

发明人： Christian ROSSBY

IPC分类号： A61N1/02

CPC分类号： A61M39/0247 ,  A61B90/10 ,  A61B2090/103 ,  A61M2039/025 ,  A61M2210/0687 ,  A61N1/0534 ,  A61N1/0539

摘要： The present invention relates to a device for securing medical leads in a cranial burr hole, in particular, for securing a brain stimulation lead within such a burr hole. The device includes a circular socket element adapted to be secured within a burr hole of the skull of a patient, the circular socket element having a through lead passage arranged to have the lead pass therethrough, the lead passage including passage walls including at least one resilient partition wall extending from an inner wall of the circular socket element, and the circular socket element having at least one inner compartment delimited by the partition wall. Further, the device includes a cap element having a circular upper portion being arranged to mate with the socket element, the circular upper portion having at least one protruding member arranged to co-operate with the at least one inner compartment when placed into the compartment so as to apply a radial pressure on the at least one resilient partition wall such that a lead passing through the passage is fixated in the passage by a resulting radial pressing force.

摘要翻译： 本发明涉及一种用于将医疗引线固定在颅钻孔中的装置，特别是用于将脑刺激引线固定在这种钻孔内。 该装置包括适于被固定在患者颅骨的钻孔内的圆形插座元件，所述圆形插座元件具有布置成使引线穿过其中的穿过引导通道，引导通道包括通道壁，该通道壁包括至少一个弹性 分隔壁从圆形插座元件的内壁延伸，并且圆形插座元件具有由分隔壁限定的至少一个内隔室。 此外，该装置包括具有圆形上部的盖元件，该圆形上部布置成与插座元件配合，该圆形上部具有至少一个突出构件，该突出构件布置为当放置在隔室中时与至少一个内隔室配合 以便在所述至少一个弹性分隔壁上施加径向压力，使得通过所述通道的引线通过所产生的径向按压力固定在所述通道中。

公开(公告)号：US07796728B2

公开(公告)日：2010-09-14

申请号：US11659243

申请日：2005-07-25

申请人： Per Harald Bergfjord

发明人： Per Harald Bergfjord

IPC分类号： A61N5/10 ,  G21K1/04

CPC分类号： A61B6/032 ,  A61B6/4021 ,  A61B6/4035 ,  A61B6/5241 ,  A61B6/587 ,  A61N2005/1061 ,  G21K1/02 ,  G21K1/10

摘要： An investigative X-ray apparatus comprises a source of X-rays emitting a cone beam centred on a beam axis, a collimator to limit the extent of the beam, and a two-dimensional detector, the apparatus being mounted on a support which is rotatable about a rotation axis, the collimator having a first state in which the collimated beam is directed towards the rotation axis and the second state in which the collimated beam is offset from the rotation axis, the two-dimensional detector being movable accordingly, the beam axis being offset from the rotation axis by a lesser amount than the collimated beam in the second state. The X-ray source is no longer directed towards the isocentre as would normally be the case; the X-ray source is not orthogonal to the collimators. This is advantageous in that the entire field of the X-ray tube can be utilised. As a result, a lesser field is required of the X-ray tube and the choice of tube designs and capacities can be widened so as to optimise the performance of the X-ray tube in other aspects.

摘要翻译： 调查性X射线设备包括发射以束轴为中心的锥形束的X射线源，用于限制束的范围的准直仪和二维检测器，该装置安装在可旋转的支撑件上 关于旋转轴，准直器具有第一状态，其中准直光束指向旋转轴线，并且准直光束偏离旋转轴线的第二状态，二维检测器可相应地移动，光束轴线 在第二状态下从旋转轴偏移比准直光束少的量。 通常情况下，X射线源不再指向等中心; X射线源不与准直仪正交。 这是有利的，因为可以利用X射线管的整个场。 结果，X射线管需要较小的场，并且可以加宽管设计和容量的选择，以便在其他方面优化X射线管的性能。

公开(公告)号：US20100166286A1

公开(公告)日：2010-07-01

申请号：US12601442

申请日：2007-05-31

申请人： Jan-Jakob Sonke ,  Marcel van Herk ,  Peter Remeijer

发明人： Jan-Jakob Sonke ,  Marcel van Herk ,  Peter Remeijer

IPC分类号： G06K9/00 ,  H05G1/60

CPC分类号： G06T7/20 ,  G06T5/003 ,  G06T2207/10116 ,  G06T2207/20068 ,  G06T2207/30004

摘要： An example of sporadic motion that causes difficulty in CT scanning is gas pockets moving around the rectum. The invention allows the automatic detection of such movements, by enhancing low density features around the prostate in the individual X-ray images, projecting these features on the cranio-caudal axis (assuming that the gas predominantly moves in this direction) to form a 1-dimensional image, and combining successive ID projections to form a 2D image. Moving gas will produce tilted lines in this image, identifying an angular range that needs to be discarded. Such a process can be used in an image processing apparatus of a CT scanner.

摘要翻译： 导致CT扫描困难的散发运动的一个例子是气囊围绕直肠移动。 本发明允许通过增强各个X射线图像中的前列腺周围的低密度特征来自动检测这种运动，将这些特征投影在头尾尾轴上（假定气体主要在该方向上移动）以形成1 并且将连续的ID投影组合以形成2D图像。 移动气体将在该图像中产生倾斜的线，识别需要丢弃的角度范围。 这样的处理可以用在CT扫描器的图像处理装置中。

公开(公告)号：US07742575B2

公开(公告)日：2010-06-22

申请号：US12370001

申请日：2009-02-12

申请人： Duncan Neil Bourne

发明人： Duncan Neil Bourne

IPC分类号： G21K1/04

CPC分类号： A61N5/1042

摘要： A multi-leaf collimator for use in a radiotherapeutic apparatus comprises a plurality of elongate narrow leaves arranged side-by side and supported in a frame, the frame having upper and lower formations for guiding each leaf into which extend ridges on the upper and lower edges of the leaves, thereby to allow the leaves to move in a longitudinal direction, the upper and lower formations being aligned so that the sides of the leaves when fitted are at a non-zero angle to the beam direction, the upper and lower ridges being located on the upper and lower edges of the leaves so that a line joining their centres is at a non-zero angle to the sides of the leaf, tilted relative to the sides in a sense opposite to that of the beam. An outer face of the upper and/or lower ridges can be aligned with a side face of the leaf, for ease of manufacture. A radiotherapeutic apparatus is also disclosed, comprising a source of radiation and a multi-leaf collimator for shaping the radiation emitted by the source, the multi-leaf collimator being as set out above.

摘要翻译： 用于放射治疗装置的多叶准直器包括并排布置并且被支撑在框架中的多个细长的窄叶片，该框架具有上部和下部结构，用于引导每个叶片，上部和下部边缘 从而允许叶片沿纵向方向移动，上部和下部结构对准，使得当装配的叶片的侧面与梁方向成非零角度时，上部和下部脊部为 位于叶片的上边缘和下边缘处，使得连接其中心的线与叶片的侧面成非零角度，在与波束的相反的意义上相对于侧面倾斜。 上部和/或下部脊的外表面可以与叶片的侧面对准，以便于制造。 还公开了一种放射治疗装置，其包括辐射源和用于整形由源发射的辐射的多叶准直器，多叶准直器如上所述。

公开(公告)号：US07649351B2

公开(公告)日：2010-01-19

申请号：US10587354

申请日：2005-02-11

申请人： Matti Kajola ,  Lauri Parkkonen ,  Juha Simola ,  Samu Taulu

发明人： Matti Kajola ,  Lauri Parkkonen ,  Juha Simola ,  Samu Taulu

IPC分类号： G01R33/00 ,  A61B5/05

CPC分类号： G01R33/025

摘要： The present invention describes a method enabling one to shield a device that measures weak biomagnetic signals from strong magnetic interference fields. The measurement sensors are provided with a feedback compensation loop, the difference signal of which is obtained from the measurement sensors themselves. As the actuator of the feedback function, one or more coils are responsible for eliminating, the external interference fields in the region of the sensors. Difference signals can be generated as a linear combination from the signals of two or more sensors. In the control logic, the SSS method can be used to numerically separate the biomagnetic signal being measured from the signals produced by the sources—compensation coils and interference sources—disposed outside the measurement region. The interference suppression can be enhanced by placing the assembly of sensors and the actuators within a magnetically shielding room.

摘要翻译： 本发明描述了一种能够从强磁场干扰场屏蔽测量弱生物磁信号的装置的方法。 测量传感器设置有反馈补偿环路，其差分信号从测量传感器本身获得。 作为反馈功能的执行器，一个或多个线圈负责消除传感器区域中的外部干扰场。 可以从两个或更多个传感器的信号产生差分信号作为线性组合。 在控制逻辑中，SSS方法可以用于将被测量的生物磁信号与源 - 补偿线圈产生的信号和设置在测量区域之外的干扰源进行数值分离。 可以通过将传感器和执行器的组件放置在磁屏蔽室内来增强干扰抑制。

公开(公告)号：US20090306483A1

公开(公告)日：2009-12-10

申请号：US12444021

申请日：2007-10-02

申请人： Jonas Garding ,  Per Kjall ,  Par Lidberg

发明人： Jonas Garding ,  Per Kjall ,  Par Lidberg

IPC分类号： A61B5/00

CPC分类号： A61N5/1031 ,  A61N5/1084

摘要： A treatment planning method comprises the steps of identifying a plurality of treatment locations and an overall dose to be applied to each, for each specific location identifying the global dose applied at that location by doses aimed at different locations, as a proportion of the dose applied at the respective different location, constructing a dose factor matrix containing for each location, the global doses arising from the dose applied at each other location, inverting the dose factor matrix and multiplying it with a prescription matrix containing the overall doses to be applied to each location, thereby to obtain a resultant matrix containing a local dose for each location. This provides a mathematically straightforward method of deriving the necessary doses to be applied to each target so that, including the global doses delivered while irradiating a different target, each target receives the correct total dose. Some locations can be omitted from the treatment planning method, for example if they are located so far from the other locations that they will not have a significant interaction with them. A corresponding treatment planning apparatus is also described.

摘要翻译： 治疗计划方法包括以下步骤：根据施用剂量的比例，识别针对每个特定位置的多个治疗位置和总体剂量，以识别在该位置处施用的全局剂量。 在相应的不同位置，构建包含每个位置的剂量因子矩阵，从在每个其他位置施加的剂量产生的全局剂量，颠倒剂量因子矩阵并将其与包含要应用于每个位置的总体剂量的处方矩阵相乘 从而获得包含每个位置的局部剂量的合成矩阵。 这提供了一种数学上直接的方法来得出要应用于每个靶标的必要剂量，使得包括在照射不同靶标时递送的全局剂量，每个靶标接收正确的总剂量。 治疗计划方法中可以省略一些位置，例如，如果它们位于远离其他位置的位置，那么它们将不会与它们发生显着的相互作用。 还描述了相应的治疗计划装置。

公开(公告)号：US20090270769A1

公开(公告)日：2009-10-29

申请号：US12428028

申请日：2009-04-22

申请人： Thomas Rousseau ,  Per Carlsson ,  Magnus Lindfors

发明人： Thomas Rousseau ,  Per Carlsson ,  Magnus Lindfors

IPC分类号： A61B5/11

CPC分类号： G01B3/28 ,  A61B90/10 ,  A61B2090/061 ,  A61B2090/101 ,  A61N5/1084

摘要： The present invention relates to the field of radiation therapy. In particular, the relates to a system for measuring the position of a head of a patient during neurological diagnosis, therapy or surgery, in particular during radiation therapy relatively a frame adapted to be fixated to a radiation therapy unit. The invention also relates to a head cap and a measurement tool for use in such a system, and to a method measuring the position of a head of a patient by means of a system mentioned above during neurological diagnosis, therapy or surgery, in particular during radiation therapy relatively a frame adapted to be fixated to a radiation therapy unit. The measurement tool is adapted to measure a distance between the head and the head cap via a through hole by means of an elongated element having an end being adapted to abut against the head during a measurement, wherein the measurement tool is adapted to obtain at least one measurement value indicating a position of the head in relation to the head cap substantially without operator interaction

摘要翻译： 本发明涉及放射治疗领域。 特别地，涉及一种用于在神经系统诊断，治疗或手术期间，特别是在辐射治疗期间相对于适于固定到放射治疗单元的框架来测量患者头部的位置的系统。 本发明还涉及用于这种系统的头帽和测量工具，以及在神经系统诊断，治疗或手术期间，尤其是在以下过程中通过上述系统测量患者头部的位置的方法 辐射治疗相对于适于固定到放射治疗单元的框架。 测量工具适于通过细长元件通过通孔测量头部和头部帽之间的距离，该细长元件的一端适于在测量期间与头部抵接，其中测量工具适于获得至少 一个测量值基本上表示头部相对于头盖的位置基本上没有操作员的相互作用