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1. 发明申请

US20050207531A1 Radiation therapy system using interior-point methods and convex models for intensity modulated fluence map optimization 审中-公开
标题翻译：使用内点法和凸模型进行强度调制注量地图优化的放射治疗系统
公开(公告)号：US20050207531A1
公开(公告)日：2005-09-22
申请号：US11039331
申请日：2005-01-20
申请人： James Dempsey , Ravindra Ahuja , Arvind Kumar , Jonathan Li , H. Romeijn
发明人： James Dempsey , Ravindra Ahuja , Arvind Kumar , Jonathan Li , H. Romeijn
IPC分类号： A61N5/10
CPC分类号： A61N5/1031 , A61N5/1042
摘要： A method of determining a treatment plan for intensity modulated radiation treatment (IMRT) divides a three-dimensional volume of a patient into a grid of dose voxels. At least a portion of the dose voxels are designated to belong to at least one target or to at least one critical structure. An ionizing radiation dose as delivered by a plurality of beamlets each having a beamlet intensity is modeled. A non-linear convex voxel-based penalty function model is provided for optimizing a fluence map. The fluence map defines the beamlet intensities for each of the plurality of beamlets. The model is then solved based on defined clinical criteria for the target and the critical structure using an interior point algorithm with dense column handling to obtain a globally optimal fluence map.
摘要翻译：确定强度调制辐射治疗（IMRT）的治疗计划的方法将患者的三维体积分成剂量体素的网格。剂量体素的至少一部分被指定为属于至少一个靶或至少一个关键结构。由多个具有子束强度的子束传送的电离辐射剂量被建模。提供了一种非线性凸基于体素的惩罚函数模型，用于优化注量图。注量图定义了多个子束中的每一个的子束强度。然后使用具有密集列处理的内点算法，基于目标和临界结构的定义临床标准来解决该模型，以获得全局最优注量图。

2. 发明授权

US08981779B2 Active resistive shimming fro MRI devices 有权
标题翻译：磁共振成像装置的主动阻力垫片
公开(公告)号：US08981779B2
公开(公告)日：2015-03-17
申请号：US13324850
申请日：2011-12-13
申请人： Shmaryu Shvartsman , James Dempsey , Gordon DeMeester
发明人： Shmaryu Shvartsman , James Dempsey , Gordon DeMeester
IPC分类号： G01V3/00 , G01R33/3875 , G01R33/38 , G01R33/48
CPC分类号： G01R33/3875 , G01R33/3642 , G01R33/3806 , G01R33/385 , G01R33/4808 , G01R33/481 , G01R33/4812 , G01R33/4814
摘要： Active resistive shim coil assemblies may be used in magnetic resonance imaging (MRI) systems to reduce in-homogeneity of the magnetic field in the imaging volume. Disclosed embodiments may be used with continuous systems, gapped cylindrical systems, or vertically gapped systems. Disclosed embodiments may also be used with an open MRI system and can be used with an instrument placed in the gap of the MRI system. An exemplary embodiment of the active resistive shim coil assembly of the present disclosure includes active resistive shim coils each operable to be energized by separate currents through a plurality of power channels. In some embodiments, the disclosed active resistive shim coil assemblies allow for various degrees of freedom to shim out field in-homogeneity.
摘要翻译：有源电阻衬片线圈组件可用于磁共振成像（MRI）系统，以减小成像体积中磁场的均匀性。公开的实施例可以与连续系统，间隙圆柱形系统或垂直间隙系统一起使用。公开的实施例也可以与开放式MRI系统一起使用，并且可以与放置在MRI系统的间隙中的仪器一起使用。本公开的有源电阻衬片线圈组件的示例性实施例包括有源电阻衬垫线圈，其可操作以由通过多个功率通道的分离电流激励。在一些实施例中，所公开的主动阻抗衬片线圈组件允许不同程度的自由度来均匀地摆放场。

3. 发明申请

US20070246578A1 Integrated multi-function showerhead 有权
标题翻译：集成多功能花洒
公开(公告)号：US20070246578A1
公开(公告)日：2007-10-25
申请号：US11788086
申请日：2007-04-19
申请人： Jamy Bulan , James Dempsey , Timothy O'Brien , Harshil Parikh
发明人： Jamy Bulan , James Dempsey , Timothy O'Brien , Harshil Parikh
IPC分类号： B05B1/14 , A62C31/02 , A62C2/08
CPC分类号： B05B1/18 , B05B1/16
摘要： A showerhead has at least a first set of nozzles and a second set of nozzles for discharging water. The showerhead discharges water according to one of multiple water delivery functions, where a first water delivery function corresponds to water being discharged through only the first set of nozzles, a second water delivery function corresponds to water being discharged through only the second set of nozzles and a third water delivery function corresponds to water being discharged through the first and second sets of nozzles simultaneously. The spacing between the first set of nozzles and the second set of nozzles is carefully selected so that the third water delivery function corresponds to the integrated nozzles of the first and second sets of nozzles. As a result, the third water delivery function provides a coherent and balanced water flow resulting in a more pleasant feel.
摘要翻译：喷头具有至少第一组喷嘴和用于排放水的第二组喷嘴。淋浴器根据多个输水功能之一排出水，其中第一输水功能对应于仅通过第一组喷嘴排出的水，第二输水功能对应于仅通过第二组喷嘴排出的水，以及第三输水功能对应于同时通过第一组和第二组喷嘴排出的水。仔细选择第一组喷嘴和第二组喷嘴之间的间隔，使得第三输水功能对应于第一组和第二组喷嘴的集成喷嘴。结果，第三次输水功能提供了一致和平衡的水流，从而产生更舒适的感觉。

4. 发明申请

US20130147476A1 ACTIVE RESISTIVE SHIMMING FOR MRI DEVICES 有权
标题翻译：用于MRI设备的主动电阻成像
公开(公告)号：US20130147476A1
公开(公告)日：2013-06-13
申请号：US13324850
申请日：2011-12-13
申请人： Shmaryu Shvartsman , James Dempsey , Gordon DeMeester
发明人： Shmaryu Shvartsman , James Dempsey , Gordon DeMeester
IPC分类号： G01R33/58 , G01R33/341
CPC分类号： G01R33/3875 , G01R33/3642 , G01R33/3806 , G01R33/385 , G01R33/4808 , G01R33/481 , G01R33/4812 , G01R33/4814
摘要： Active resistive shim coil assemblies may be used in magnetic resonance imaging (MRI) systems to reduce in-homogeneity of the magnetic field in the imaging volume. Disclosed embodiments may be used with continuous systems, gapped cylindrical systems, or vertically gapped systems. Disclosed embodiments may also be used with an open MRI system and can be used with an instrument placed in the gap of the MRI system. An exemplary embodiment of the active resistive shim coil assembly of the present disclosure includes active resistive shim coils each operable to be energized by separate currents through a plurality of power channels. In some embodiments, the disclosed active resistive shim coil assemblies allow for various degrees of freedom to shim out field in-homogeneity.
摘要翻译：有源电阻衬片线圈组件可用于磁共振成像（MRI）系统，以减小成像体积中磁场的均匀性。公开的实施例可以与连续系统，间隙圆柱形系统或垂直间隙系统一起使用。公开的实施例也可以与开放式MRI系统一起使用，并且可以与放置在MRI系统的间隙中的仪器一起使用。本公开的有源电阻衬片线圈组件的示例性实施例包括有源电阻衬垫线圈，其可操作以由通过多个功率通道的分离电流激励。在一些实施例中，所公开的主动阻抗衬片线圈组件允许不同程度的自由度来均匀地摆放场。

5. 外观设计

USD539385S1 Showerhead 有权
公开(公告)号：USD539385S1
公开(公告)日：2007-03-27
申请号：US29235635
申请日：2005-08-04
申请人： James Dempsey , Matt Kesti , John James McNulty
设计人： James Dempsey , Matt Kesti , John James McNulty

6. 发明申请

US20050197564A1 System for delivering conformal radiation therapy while simultaneously imaging soft tissue 有权
标题翻译：用于在同时成像软组织的同时进行适形放射治疗的系统
公开(公告)号：US20050197564A1
公开(公告)日：2005-09-08
申请号：US11059914
申请日：2005-02-17
申请人： James Dempsey
发明人： James Dempsey
IPC分类号： A61B5/05 , A61B5/055 , A61N5/10
CPC分类号： A61N5/1064 , A61B5/055 , A61B5/4504 , A61B5/4836 , A61B5/4848 , A61N5/1037 , A61N5/1039 , A61N5/1042 , A61N5/1049 , A61N5/1067 , A61N5/1077 , A61N5/1081 , A61N2005/1055 , G01R33/34061 , G01R33/381 , G01R33/4808 , G01R33/4812
摘要： A device and a process for performing high temporal- and spatial-resolution MR imaging of the anatomy of a patient during intensity modulated radiation therapy (IMRT) to directly measure and control the highly conformal ionizing radiation dose delivered to the patient for the treatment of diseases caused by proliferative tissue disorders. This invention combines the technologies of open MRI, multileaf-collimator or compensating filter-based IMRT delivery, and cobalt teletherapy into a single co-registered and gantry mounted system.
摘要翻译：一种用于在强度调制放射治疗（IMRT）期间对患者的解剖结构执行高时间和空间分辨率MR成像以直接测量和控制递送给患者以治疗疾病的高保形电离辐射剂量的装置和方法由增生组织疾病引起。本发明将开放MRI，多叶准直仪或基于补偿滤波器的IMRT传送技术以及钴远程治疗技术结合到单一的共同注册和龙门式安装的系统中。

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