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1. 发明授权

US07924971B2 Radiographic apparatus 有权
标题翻译：射线照相设备
公开(公告)号：US07924971B2
公开(公告)日：2011-04-12
申请号：US12445203
申请日：2006-10-11
申请人： Christopher Knox , Andrew Long , Kevin Brown
发明人： Christopher Knox , Andrew Long , Kevin Brown
IPC分类号： A61B6/00
CPC分类号： A61B6/5217 , A61B5/113 , A61B6/541 , A61N5/1064 , A61N2005/1061
摘要： For Respiration Correlated Cone Beam CT scanning, we have observed that improvements in the frame rate are in fact undesirable. We therefore propose a radiographic apparatus comprising a beam of radiation and a detector therefor, adapted to obtain a two dimensional image of the beam after passing through a cyclically varying object to be investigated, a processor adapted to review the images and select images at like points in the cycle, and a control means for the beam of radiation adapted to activate the beam periodically. The control means can activate the beam at a frequency of between 0.5 and 5 Hertz, more preferably between 1 and 3 Hertz, which corresponds (roughly) to a frequency that is between 6 and 10 times the frequency of the cyclical variation. It will assist if the selected point of the cycle is an extremity thereof, as the rate of change in these areas is at a minimum. Thus, slight mismatches between the two cycles will then have only a small effect. Typically, the object will be a patient and the cyclical variation will be the patient's breathing cycle.
摘要翻译：对于呼吸相关锥束CT扫描，我们已经观察到，帧率的改善实际上是不希望的。因此，我们提出了一种包括辐射束和其检测器的放射线照相设备，适用于在通过待调查的循环变化的物体之后获得光束的二维图像，适于检查图像并在相同点上选择图像的处理器以及用于辐射束的控制装置，其适于周期性地激活光束。控制装置可以以0.5Hz至5Hz，更优选1至3赫兹之间的频率激活该波束，其大致对应于循环变化频率的6至10倍之间的频率。如果周期的选定点是其极限，则这些区域的变化率最小。因此，两个周期之间的轻微错配将只有很小的影响。通常，对象将是患者，周期性变化将是患者的呼吸周期。

2. 发明授权

US09486647B2 Vision system for radiotherapy machine control 有权
标题翻译：放射治疗机视觉系统控制
公开(公告)号：US09486647B2
公开(公告)日：2016-11-08
申请号：US13458207
申请日：2012-04-27
申请人： Per H. Bergfjord , Dan Thompson , Kevin Brown , Christopher Knox , Andrew Long , Stephen Young
发明人： Per H. Bergfjord , Dan Thompson , Kevin Brown , Christopher Knox , Andrew Long , Stephen Young
IPC分类号： G05D3/00 , G08B21/18 , A61N5/10
CPC分类号： A61N5/1048 , A61B90/36 , A61N5/1067 , A61N2005/1059
摘要： In various embodiments, a system for controlling radiotherapy equipment in a treatment environment includes a controller for receiving, from one or more image capture devices, data indicating the position of one or more objects in the treatment environment. Based on the position data, the controller defines one or more exclusionary zones from which the radiotherapy equipment is excluded. Each zone has a buffer area surrounding one or more of the objects. The controller further directs the radiotherapy equipment such that a radiotherapy treatment plan is delivered without the equipment entering into the exclusionary zones.
摘要翻译：在各种实施例中，用于在治疗环境中控制放射治疗设备的系统包括用于从一个或多个图像捕获设备接收指示治疗环境中的一个或多个物体的位置的数据的控制器。基于位置数据，控制器定义一个或多个排除区域，排除放射治疗设备。每个区域具有围绕一个或多个对象的缓冲区。控制器进一步指导放射治疗设备，使得在没有设备进入排除区域的情况下传送放射治疗计划。

3. 发明申请

US20130289796A1 VISION SYSTEM FOR RADIOTHERAPY MACHINE CONTROL 有权
标题翻译：放射治疗机器视觉系统
公开(公告)号：US20130289796A1
公开(公告)日：2013-10-31
申请号：US13458207
申请日：2012-04-27
申请人： Per H. Bergfjord , Dan Thompson , Kevin Brown , Christopher Knox , Andrew Long , Stephen Young
发明人： Per H. Bergfjord , Dan Thompson , Kevin Brown , Christopher Knox , Andrew Long , Stephen Young
IPC分类号： G05D3/00 , G08B21/18
CPC分类号： A61N5/1048 , A61B90/36 , A61N5/1067 , A61N2005/1059
摘要： In various embodiments, a system for controlling radiotherapy equipment in a treatment environment includes a controller for receiving, from one or more image capture devices, data indicating the position of one or more objects in the treatment environment. Based on the position data, the controller defines one or more exclusionary zones from which the radiotherapy equipment is excluded. Each zone has a buffer area surrounding one or more of the objects. The controller further directs the radiotherapy equipment such that a radiotherapy treatment plan is delivered without the equipment entering into the exclusionary zones.
摘要翻译：在各种实施例中，用于在治疗环境中控制放射治疗设备的系统包括用于从一个或多个图像捕获设备接收指示治疗环境中的一个或多个物体的位置的数据的控制器。基于位置数据，控制器定义一个或多个排除区域，排除放射治疗设备。每个区域具有围绕一个或多个对象的缓冲区。控制器进一步指导放射治疗设备，使得在没有设备进入排除区域的情况下传送放射治疗计划。

4. 发明申请

US20100104070A1 Radiographic apparatus 有权
标题翻译：射线照相设备
公开(公告)号：US20100104070A1
公开(公告)日：2010-04-29
申请号：US12445203
申请日：2006-10-11
申请人： Christopher Knox , Andrew Long , Kevin Bronw
发明人： Christopher Knox , Andrew Long , Kevin Bronw
IPC分类号： H05G1/10 , A61B6/00 , G01N23/04
CPC分类号： A61B6/5217 , A61B5/113 , A61B6/541 , A61N5/1064 , A61N2005/1061
摘要： For Respiration Correlated Cone Beam CT scanning, we have observed that improvements in the frame rate are in fact undesirable. We therefore propose a radiographic apparatus comprising a beam of radiation and a detector therefor, adapted to obtain a two dimensional image of the beam after passing through a cyclically varying object to be investigated, a processor adapted to review the images and select images at like points in the cycle, and a control means for the beam of radiation adapted to activate the beam periodically. The control means can activate the beam at a frequency of between 0.5 and 5 Hertz, more preferably between 1 and 3 Hertz, which corresponds (roughly) to a frequency that is between 6 and 10 times the frequency of the cyclical variation. It will assist if the selected point of the cycle is an extremity thereof, as the rate of change in these areas is at a minimum. Thus, slight mismatches between the two cycles will then have only a small effect. Typically, the object will be a patient and the cyclical variation will be the patient's breathing cycle.
摘要翻译：对于呼吸相关锥束CT扫描，我们已经观察到，帧率的改善实际上是不希望的。因此，我们提出了一种包括辐射束和其检测器的放射线照相设备，适用于在通过待调查的循环变化的物体之后获得光束的二维图像，适于检查图像并在相同点上选择图像的处理器以及用于辐射束的控制装置，其适于周期性地激活光束。控制装置可以以0.5Hz至5Hz，更优选1至3赫兹之间的频率激活该波束，其大致对应于循环变化频率的6至10倍之间的频率。如果周期的选定点是其极限，则这些区域的变化率最小。因此，两个周期之间的轻微错配将只有很小的影响。通常，对象将是患者，周期性变化将是患者的呼吸周期。

5. 发明授权

US09050461B2 Radiotherapy apparatus 有权
标题翻译：放射治疗仪
公开(公告)号：US09050461B2
公开(公告)日：2015-06-09
申请号：US13517100
申请日：2009-12-21
申请人： Christopher Knox
发明人： Christopher Knox
IPC分类号： H05G1/58 , A61N5/10
CPC分类号： A61N5/1049 , A61N2005/1054 , A61N2005/1061
摘要： In radiotherapy apparatus comprising an imager for the MV beam and a separate kV imaging system, it is common for there to be significant artifacts in the kV image arising from the MV pulse. We disclose such a radiotherapy apparatus which is adapted to (i) cause the therapeutic source to emit radiation while keeping the diagnostic source inactive, (ii) read an image from the detector associated with the therapeutic source, (iii) cause the diagnostic source to emit radiation and while keeping the therapeutic source inactive, (iv) read an image from the detector associated with the diagnostic source, and (v) repeat as necessary. The control unit is preferably adapted to, at steps (ii) and (iv), read an image from both of the detectors, or to clear the “inactive” detector. The detectors are ideally flat-panel detectors, capturing a two-dimensional image.
摘要翻译：在包括用于MV波束的成像器和单独的kV成像系统的放射治疗装置中，通常在MV脉冲产生的kV图像中存在显着的伪像。我们公开了这样的放射治疗装置，其适于：（i）使得治疗源在保持诊断源无效的同时发射辐射，（ii）从与治疗源相关联的检测器中读取图像，（iii）使诊断源发射辐射并且同时保持治疗源不活动，（iv）从与诊断源相关联的检测器读取图像，以及（v）根据需要重复。控制单元优选地适于在步骤（ii）和（iv）中从两个检测器读取图像，或者清除“非活动”检测器。检测器是理想的平板检测器，捕获二维图像。

6. 发明申请

US20120257711A1 Radiotherapy Apparatus 有权
标题翻译：放射治疗仪
公开(公告)号：US20120257711A1
公开(公告)日：2012-10-11
申请号：US13517100
申请日：2009-12-21
申请人： Christopher Knox
发明人： Christopher Knox
IPC分类号： A61N5/10 , A61B6/03
CPC分类号： A61N5/1049 , A61N2005/1054 , A61N2005/1061
摘要： In radiotherapy apparatus comprising an imager for the MV beam and a separate kV imaging system, it is common for there to be significant artefacts in the kV image arising from the MV pulse. We disclose such a radiotherapy apparatus which is adapted to (i) cause the therapeutic source to emit radiation while keeping the diagnostic source inactive, (ii) read an image from the detector associated with the therapeutic source, (iii) cause the diagnostic source to emit radiation and while keeping the therapeutic source inactive, (iv) read an image from the detector associated with the diagnostic source, and (v) repeat as necessary. The control unit is preferably adapted to, at steps (ii) and (iv), read an image from both of the detectors, or to clear the “inactive” detector. The detectors are ideally flat-panel detectors, capturing a two-dimensional image.
摘要翻译：在包括用于MV束的成像器和单独的kV成像系统的放射治疗装置中，通常在MV脉冲产生的kV图像中存在显着的伪像。我们公开了这样的放射治疗装置，其适于：（i）使得治疗源在保持诊断源无效的同时发射辐射，（ii）从与治疗源相关联的检测器中读取图像，（iii）使诊断源发射辐射并且同时保持治疗源不活动，（iv）从与诊断源相关联的检测器读取图像，以及（v）根据需要重复。控制单元优选地适于在步骤（ii）和（iv）中从两个检测器读取图像，或者清除非活动检测器。检测器是理想的平板检测器，捕获二维图像。

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