专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5629967A Positioning device and method for radiation treatment 失效
标题翻译：定位装置及放射治疗方法
公开(公告)号：US5629967A
公开(公告)日：1997-05-13
申请号：US596870
申请日：1996-02-13
申请人： Dan Leksell , Borje Nilsson
发明人： Dan Leksell , Borje Nilsson
IPC分类号： A61B6/04 , A61B19/00 , A61N5/10 , G21K5/10
CPC分类号： A61B6/0421 , A61N5/103 , A61N5/1084 , G21K5/10 , A61B2090/101 , A61N5/1042
摘要： A radiotherapy appliance having a plurality of controllable radiation beams which converge on a focus volume wherein an object being irradiated can be movably positioned relative to the focus volume for varying time periods and with varying radiation exposure rates, optimally under control of a computer. The computer controls the focus volume radiation beam size, intensity, and exposure time for subareas of the treatment target in response to a radiation dose distribution determined for the treatment target. A determination of the radiation beam size, intensity, and dwell time of the focus volume in the target area, is made by initially dividing up the specified treatment area into volume elements or voxels and having biological characteristics of the treatment area assigned to each voxel. The energy deposition incident to each voxel to provide this biological characteristic is then calculated. Finally, from the energy deposition incident on each voxel, the dwell time of the focus volume at particular voxels can be determined. Once the dwell time has been determined, the computer generates a sequence of motor control movements to move the patient with respect to the focus volume such that the focus volume is at a position sufficiently long within the treatment target to deliver the necessary radiation for each voxel.
摘要翻译：放射治疗器具具有会聚在焦点体积上的多个可控辐射束，其中被照射的物体可相对于焦点体积可移动地定位，以便在计算机的控制下最佳地改变时间段和不同的辐射照射率。计算机响应于为治疗目标确定的辐射剂量分布，来控制处理靶的子区域的聚焦体积辐射束尺寸，强度和曝光时间。通过首先将指定的治疗区域划分为体积元素或体素并具有分配给每个体素的治疗区域的生物特征来确定目标区域中的焦点体积的辐射束尺寸，强度和停留时间。然后计算入射到每个体素以提供该生物特征的能量沉积。最后，从每个体素上的能量沉积事件可以确定特定体素上焦点体积的停留时间。一旦确定了停留时间，计算机产生一系列马达控制运动，以使患者相对于焦点体积移动，使得聚焦体积处于治疗目标中足够长的位置，以为每个体素传递必要的辐射。

2. 发明授权

US5528651A Positioning device and method for radiation treatment 失效
公开(公告)号：US5528651A
公开(公告)日：1996-06-18
申请号：US255667
申请日：1994-06-09
申请人： Dan Leksell , Borje Nilsson
发明人： Dan Leksell , Borje Nilsson
IPC分类号： A61B6/04 , A61B19/00 , A61N5/10 , G21K5/10
CPC分类号： A61B6/0421 , A61N5/103 , A61N5/1084 , G21K5/10 , A61B2090/101 , A61N5/1042
摘要： A radiotherapy appliance having a plurality of controllable radiation beams which converge on a focus volume wherein an object being irradiated can be movably positioned relative to the focus volume for varying time periods and with varying radiation exposure rates, optimally under control of a computer. The computer controls the focus volume radiation beam size, intensity, and exposure time for subareas of the treatment target in response to a radiation dose distribution determined for the treatment target. A determination of the radiation beam size, intensity, and dwell time of the focus volume in the target area, is made by initially dividing up the specified treatment area into volume elements or voxels and having biological characteristics of the treatment area assigned to each voxel. The energy deposition incident to each voxel to provide this biological characteristic is then calculated. Finally, from the energy deposition incident on each voxel, the dwell time of the focus volume at particular voxels can be determined. Once the dwell time has been determined, the computer generates a sequence of motor control movements to move the patient with respect to the focus volume such that the focus volume is at a position sufficiently long within the treatment target to deliver the necessary radiation for each voxel.

3. 发明授权

US6049587A Positioning device and method for radiation treatment 失效
标题翻译：定位装置及放射治疗方法
公开(公告)号：US6049587A
公开(公告)日：2000-04-11
申请号：US946875
申请日：1997-10-08
申请人： Dan Leksell , Borje Nilsson
发明人： Dan Leksell , Borje Nilsson
IPC分类号： A61B6/04 , A61B19/00 , A61N5/10 , G21K5/10
CPC分类号： A61B6/0421 , A61N5/103 , A61N5/1084 , G21K5/10 , A61B2090/101 , A61N5/1042
摘要： A radiotherapy appliance having a plurality of controllable radiation beams which converge on a focus volume wherein an object being irradiated can be movably positioned relative to the focus volume for varying time periods and with varying radiation exposure rates, optimally under control of a computer. The computer controls the focus volume radiation beam size, intensity, and exposure time for subareas of the treatment target in response to a radiation dose distribution determined for the treatment target. A determination of the radiation beam size, intensity, and dwell time of the focus volume in the target area, is made by initially dividing up the specified treatment area into volume elements or voxels and having biological characteristics of the treatment area assigned to each voxel. The energy deposition incident to each voxel to provide this biological characteristic is then calculated. Finally, from the energy deposition incident on each voxel, the dwell time of the focus volume at particular voxels can be determined. Once the dwell time has been determined, the computer generates a sequence of motor control movements to move the patient with respect to the focus volume such that the focus volume is at a position sufficiently long within the treatment target to deliver the necessary radiation for each voxel.
摘要翻译：放射治疗器具具有会聚在焦点体积上的多个可控辐射束，其中被照射的物体可相对于焦点体积可移动地定位，以便在计算机的控制下最佳地改变时间段和不同的辐射照射率。计算机响应于为治疗目标确定的辐射剂量分布，来控制处理靶的子区域的聚焦体积辐射束尺寸，强度和曝光时间。通过首先将指定的治疗区域划分为体积元素或体素并具有分配给每个体素的治疗区域的生物特征来确定目标区域中的焦点体积的辐射束尺寸，强度和停留时间。然后计算入射到每个体素以提供该生物特征的能量沉积。最后，从每个体素上的能量沉积事件可以确定特定体素上焦点体积的停留时间。一旦确定了停留时间，计算机产生一系列马达控制运动，以使患者相对于焦点体积移动，使得聚焦体积处于治疗目标中足够长的位置，以为每个体素传递必要的辐射。

4. 发明授权

US5805661A Positioning device and method for radiation treatment 失效
公开(公告)号：US5805661A
公开(公告)日：1998-09-08
申请号：US780201
申请日：1997-01-08
申请人： Dan Leksell , Borje Nilsson
发明人： Dan Leksell , Borje Nilsson
IPC分类号： A61B6/04 , A61B19/00 , A61N5/10 , G21K5/10
CPC分类号： A61B6/0421 , A61N5/103 , A61N5/1084 , G21K5/10 , A61B2090/101 , A61N5/1042
摘要： A radiotherapy appliance having a plurality of controllable radiation beams which converge on a focus volume wherein an object being irradiated can be movably positioned relative to the focus volume for varying time periods and with varying radiation exposure rates, optimally under control of a computer. The computer controls the focus volume radiation beam size, intensity, and exposure time for subareas of the treatment target in response to a radiation dose distribution determined for the treatment target. A determination of the radiation beam size, intensity, and dwell time of the focus volume in the target area, is made by initially dividing up the specified treatment area into volume elements or voxels and having biological characteristics of the treatment area assigned to each voxel. The energy deposition incident to each voxel to provide this biological characteristic is then calculated. Finally, from the energy deposition incident on each voxel, the dwell time of the focus volume at particular voxels can be determined. Once the dwell time has been determined, the computer generates a sequence of motor control movements to move the patient with respect to the focus volume such that the focus volume is at a position sufficiently long within the treatment target to deliver the necessary radiation for each voxel.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式