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1. 发明公开

EP2413795A2 SIGNAL ACQUISITION AND PROCESSING METHOD AND APPARATUS FOR MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：方法和装置采集和处理信号磁共振
公开(公告)号：EP2413795A2
公开(公告)日：2012-02-08
申请号：EP10759226.3
申请日：2010-03-23
申请人： Tursiop Technologies LLC , Viswanathan, Raju
发明人： VISWANATHAN, Raju
IPC分类号： A61B5/055
CPC分类号： G01R33/4833 , G01R33/3808
摘要： A method and apparatus are disclosed for Magnetic Resonance Imaging using specialized signal acquisition and processing techniques for image reconstruction with a generally inhomogeneous static magnetic field. New signal processing methods for image reconstruction and for minimizing dephasing effects are disclosed. Imaging systems with smaller static magnetic field strengths and smaller hardware demands than those with homogeneous static magnetic fields are provided, leading to significant reductions in system size and cost as compared to standard MRI systems. Such systems can also exploit imaging coils having high Signal-to-Noise- Ratio (SNR), including those made from Carbon nanotube conductors, leading to further imaging system efficiencies.

2. 发明申请

WO2019217433A1 SYSTEMS, APPARATUSES AND METHODS FOR DELIVERY OF ABLATIVE ENERGY TO TISSUE 审中-公开
公开(公告)号：WO2019217433A1
公开(公告)日：2019-11-14
申请号：PCT/US2019/031135
申请日：2019-05-07
申请人： FARAPULSE, INC. , VISWANATHAN, Raju
发明人： VISWANATHAN, Raju
IPC分类号： A61B18/14
摘要： A system includes a pulse waveform generator and an ablation device coupled to the pulse waveform generator. The ablation device includes at least one electrode configured for ablation pulse delivery to tissue during use. The pulse waveform generator is configured to deliver voltage pulses to the ablation device in the form of a pulsed waveform. The pulsed waveform can include multiple levels of hierarchy, and multiple sets of electrodes can be activated such that their pulsed delivery is interleaved with one another.

3. 发明申请

WO2012051080A2 SHAPED CARBON NANOMATERIAL IMAGING COIL ELEMENTS FOR MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：用于磁共振成像的形状碳纳米管成像线圈元件
公开(公告)号：WO2012051080A2
公开(公告)日：2012-04-19
申请号：PCT/US2011055518
申请日：2011-10-09
申请人： TURSIOP TECHNOLOGIES LLC , VISWANATHAN RAJU
发明人： VISWANATHAN RAJU
IPC分类号： A61B5/055 , B82Y25/00
CPC分类号： G01R33/34 , G01R33/34046 , G01R33/341
摘要： MRI imaging coil elements can include at least one electrical conductor formed from shaped carbon-based nanomaterial, the carbon- based nanomaterial conductor having a ratio of electrical inductive reactance to electrical resistance, over a range of frequencies, that is larger than that of a similarly dimensioned electrical conductor constructed only of metal, and a connector coupled to the first electrical conductor for functionally connecting the imaging coil element to electronic circuitry connecting to a magnetic resonance imaging system. The shape of the carbon-based nanomaterial in at least one of the imaging coil elements formed from carbon-based nanomaterial can be selected from a yarn-like shape, a ribbon-like shape, and a string-like shape. Similarly, the carbon- based nanomaterial in the at least one imaging coil element formed from carbon-based nanomaterial is structured as one of, carbon nanotubes, Buckypaper, and graphene.
摘要翻译： MRI成像线圈元件可以包括由成形的碳基纳米材料形成的至少一个电导体，该碳基纳米材料导体在一定频率范围内具有大于类似电感的电感抗与电阻的比率仅由金属构成的三维电导体以及耦合到第一电导体的连接器，用于将成像线圈元件功能性地连接到连接到磁共振成像系统的电子电路。由碳系纳米材料形成的至少一个摄像用线圈元件中的碳系纳米材料的形状可以从纱状，带状，线状中选择。类似地，由碳基纳米材料形成的至少一个成像线圈元件中的碳基纳米材料被构造为碳纳米管，Buckypaper和石墨烯之一。

4. 发明申请

WO2012047974A2 HYBRID IMAGING COILS FOR MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：用于磁共振成像的混合成像线圈
公开(公告)号：WO2012047974A2
公开(公告)日：2012-04-12
申请号：PCT/US2011/054893
申请日：2011-10-05
申请人： TURSIOP TECHNOLOGIES LLC , VISWANATHAN, Raju
发明人： VISWANATHAN, Raju
IPC分类号： A61B5/055 , G01R33/48 , G01R33/28
CPC分类号： B82Y10/00 , B82Y25/00 , B82Y30/00 , G01R33/34007 , G01R33/34046 , G01R33/341
摘要： Hybrid imaging coil elements for use with MRI systems are disclosed that can include at least one electrical conductor, termed the first electrical conductor, formed from shaped carbon- based nanomaterial, a conducting connector deposited on at least one end of the first electrical conductor and connecting the first electrical conductor to a second electrical conductor formed from metal to comprise a hybrid electrical conductor, the hybrid electrical conductor having a ratio of electrical inductive reactance to electrical resistance, over a range of frequencies, that is larger than that of a similarly dimensioned electrical conductor constructed only of metal. The imaging coil element can operate in a window of radio frequencies over the range between about 3 MHz and 700 MHz.
摘要翻译：公开了与MRI系统一起使用的混合成像线圈元件，其可以包括至少一个称为第一电导体的电导体，其由成形的碳基纳米材料形成，导电连接器沉积在至少一个并且将第一电导体连接到由金属形成的第二电导体以包括混合电导体，混合电导体具有在一定频率范围内的电感抗与电阻的比率，即大于仅由金属构成的类似尺寸的电导体的尺寸。成像线圈元件可以工作在约3MHz至700MHz范围内的无线电频率窗中。

5. 发明申请

WO2009061860A1 MAGNETICALLY GUIDED ENERGY DELIVERY APPARATUS 审中-公开
标题翻译： MAGNETICALLY指导能源交付工具
公开(公告)号：WO2009061860A1
公开(公告)日：2009-05-14
申请号：PCT/US2008/082537
申请日：2008-11-05
申请人： STEREOTAXIS, INC. , VISWANATHAN, Raju, R. , MUNGER, Gareth, T. , PANDEY, Ashwini, K. , MINAR, Christopher
发明人： VISWANATHAN, Raju, R. , MUNGER, Gareth, T. , PANDEY, Ashwini, K. , MINAR, Christopher
IPC分类号： A61N1/05
CPC分类号： A61M25/09 , A61B18/1492 , A61B2018/00101 , A61B2034/2051 , A61M2025/09183
摘要： An energy delivery apparatus for delivering electrical energy at a target location, said energy delivery apparatus being usable in combination with a magnetic field and comprising an electrical conductor having a substantially elongated configuration; electrode for delivering electrical energy at the target location, with the electrode being electrically coupled to the electrical conductor and having an exposed surface with at least a portion of the exposed surface having one of its principal radii of curvature smaller than 0.35 mm; insulating dielectric coating along a substantial portion of the length of the electrical conductor, with the dielectπc coating having a dielectric constant smaller than about 3; at least one guiding element mounted to the electrical conductor, with at least one of the guiding elements including a magnetically responsive material. The magnetic field is used to move the guiding element to position the electrode substantially adjacent to the target location.
摘要翻译：一种用于在目标位置传送电能的能量输送装置，所述能量输送装置可与磁场结合使用并且包括具有基本细长构型的电导体; 用于在目标位置处传送电能的电极，其中电极电耦合到电导体并且具有暴露表面，其中暴露表面的至少一部分具有小于0.35mm的其主曲率半径之一; 绝缘电介质涂层沿电导体长度的大部分绝缘，其中介电常数小于约3; 安装到电导体的至少一个引导元件，其中至少一个引导元件包括磁响应材料。磁场用于移动引导元件以将电极基本上邻近目标位置定位。

6. 发明申请

WO2008112902A3 AUTOMATED SURGICAL NAVIGATION WITH ELECTRO-ANATOMICAL AND PRE-OPERATIVE IMAGE DATA 审中-公开
标题翻译：具有电离解剖图像和自动图像数据的自动手术导航
公开(公告)号：WO2008112902A3
公开(公告)日：2008-12-11
申请号：PCT/US2008056868
申请日：2008-03-13
申请人： STEREOTAXIS INC , VISWANATHAN RAJU R , BLUME WALTER M , LIAV OREN , PATT ZAFRIR , RUBISSA ASSAF
发明人： VISWANATHAN RAJU R , BLUME WALTER M , LIAV OREN , PATT ZAFRIR , RUBISSA ASSAF
IPC分类号： G06K9/00 , A61B5/05
CPC分类号： A61B34/73 , A61B5/042 , A61B18/1492 , A61B34/20 , A61B34/70 , A61B2034/2051 , A61B2090/364
摘要： A method for navigating a medical device to an anatomical surface within a subject to perform electro-anatomical mapping using a magnetic navigation system is provided that includes importing a pre-operative image data set of an anatomical surface in the subject's body into a localization system One or more control parameters are applied to the magnetic navigation system to drive the medical device to one or more points of tissue contact, from the locations of which a geometric anatomical map can be created and registered with the pre-operative anatomical image The preoperative anatomical surface image and a representation of the geometric anatomical map are displayed relative to one another The localization system provides the location data to the magnetic navigation system to drive the medical device to the desired location, for enabling further electrophysiology mapping or ablation treatment.
摘要翻译：提供了一种用于将医疗装置导航到对象内的解剖表面以使用磁导航系统执行电解剖映射的方法，其包括将主体内的解剖表面的术前图像数据集导入到定位系统中或更多的控制参数被应用于磁导航系统以将医疗装置驱动到组织接触的一个或多个点，从其位置可以创建几何解剖图并且与术前解剖图像一起注册。术前解剖表面图像和几何解剖图的表示相对于彼此显示。定位系统将位置数据提供给磁性导航系统，以将医疗装置驱动到期望的位置，以实现进一步的电生理学绘图或消融治疗。

7. 发明申请

WO2006121972A8 PREOPERATIVE AND INTRA-OPERATIVE IMAGING-BASED PROCEDURE WORKFLOW WITH COMPLEXITY SCORING 审中-公开
标题翻译：基于前瞻性和基于操作成像的程序工作流程与复杂度
公开(公告)号：WO2006121972A8
公开(公告)日：2008-10-16
申请号：PCT/US2006017621
申请日：2006-05-05
申请人： STEREORAXIS INC , VISWANATHAN RAJU R
发明人： VISWANATHAN RAJU R
IPC分类号： A61B6/00 , A61B5/00 , A61B5/05 , A61B5/103
CPC分类号： G06T7/0012 , A61B34/10 , G06F19/321 , G06F19/3481 , G06T2207/30101 , G16H50/50
摘要： A method of screening subjects for medical procedures involving the remote navigation of a medical device (22) through the vasculature in an operating region (32A). The method includes processing (24) the image data of the operating region to determine a measure of the complexity of at least a portion of the vasculature in the operating region; and generating a recommendation about at least one parameter of procedure based at least in part upon a comparison between the determined measure of complexity and a predetermined value.
摘要翻译：一种筛选涉及在操作区域（32A）中通过脉管系统远程导航医疗装置（22）的医疗程序的方法。该方法包括处理（24）操作区域的图像数据以确定操作区域中脉管系统的至少一部分的复杂度的量度; 以及至少部分地基于所确定的复杂度测量与预定值之间的比较来生成关于至少一个过程参数的推荐。

8. 发明申请

WO2008030962A2 CONSOLIDATED USER INTERFACE SYSTEMS AND METHODS 审中-公开
标题翻译：合并用户界面系统和方法
公开(公告)号：WO2008030962A2
公开(公告)日：2008-03-13
申请号：PCT/US2007/077761
申请日：2007-09-06
申请人： STEREOTAXIS, INC. , GARIBALDI, Jeffrey, M. , BLUME, Walter, M. , KASTELEIN, Nathan , VISWANATHAN, Raju, R. , TOMASSONI, Gery , BESSON, Guy , GASPARAKIS, Charidimos, E.
发明人： GARIBALDI, Jeffrey, M. , BLUME, Walter, M. , KASTELEIN, Nathan , VISWANATHAN, Raju, R. , TOMASSONI, Gery , BESSON, Guy , GASPARAKIS, Charidimos, E.
IPC分类号： G05B11/01
CPC分类号： G16H40/63 , G06F19/00
摘要： A control for the coordinated operation of at least two medical systems. Each of the medical systems generating its own visual display output, and preferably accepts commands from an input device. The control includes a display, having an active display area, and at least one inactive display area; at least one input device which provides inputs to the medical system whose visual display out is being displayed on the active display area. A controller selects the medicai system whose visual display output is displayed on the active display area.
摘要翻译：
用于至少两个医疗系统的协调操作的控制。每个医疗系统生成其自己的视觉显示输出，并且优选地接受来自输入设备的命令。控制器包括具有有效显示区域和至少一个无效显示区域的显示器; 至少一个输入装置，其向可视化显示输出显示在有效显示区域上的医疗系统提供输入。控制器选择可视显示输出显示在活动显示区域的医疗系统。

9. 发明申请

WO2007067961A3 ADVANCER SYSTEM FOR COAXIAL MEDICAL DEVICES 审中-公开
标题翻译：同轴医疗设备的ADVANCER系统
公开(公告)号：WO2007067961A3
公开(公告)日：2007-12-27
申请号：PCT/US2006061755
申请日：2006-12-07
申请人： STEREOTAXIS INC , VISWANATHAN RAJU R , FLICKINGER WILLIAM
发明人： VISWANATHAN RAJU R , FLICKINGER WILLIAM
IPC分类号： A61M31/00
CPC分类号： A61M25/0113 , A61M25/0021 , A61M25/007 , A61M2025/0681
摘要： A telescoping medical device system is provided that includes an outer sheath having a proximal end and a distal end, and a lumen extending through at least the distal end portion, and a slot extending along a portion of the outer sheath. The telescoping medical device also includes an inner member extending through the slot and through the lumen in the outer sheath. A first drive mechanically engages and drives the outer sheath, and a second drive mechanically engages and drives the inner member through the slot and into the lumen of the outer sheath.
摘要翻译：提供了一种伸缩式医疗装置系统，其包括具有近端和远端以及延伸穿过至少远端部分的腔的外护套以及沿着外护套的一部分延伸的狭槽。伸缩式医疗装置还包括延伸穿过狭槽并穿过外护套中的内腔的内部构件。第一驱动器机械接合并驱动外护套，并且第二驱动器机械接合并驱动内构件通过狭槽并进入外护套的内腔。

10. 发明申请

WO2006076394A3 NAVIGATION USING SENSED PHYSIOLOGICAL DATA AS FEEDBACK 审中-公开
标题翻译：使用感觉生理数据作为反馈的导航
公开(公告)号：WO2006076394A3
公开(公告)日：2007-10-11
申请号：PCT/US2006000904
申请日：2006-01-11
申请人： STEREOTAXIS INC , RITTER ROGERS C , VISWANATHAN RAJU
发明人： RITTER ROGERS C , VISWANATHAN RAJU
IPC分类号： A61B5/05 , A61B19/00
CPC分类号： A61B5/026 , A61B5/028 , A61B5/04011 , A61B5/04012 , A61B5/042 , A61B5/06 , A61B5/062 , A61B5/065 , A61B5/068 , A61B8/06 , A61B8/12 , A61B34/73 , A61B90/06 , A61B2017/00044 , A61B2034/2051 , A61N1/08
摘要： A method for controlling a remote navigation system to navigate a medical device in an operating region in a subject is provided, comprising operating the remote navigation system to bring a sensor carried on a medical device successively into a plurality of locations in a predetermined pattern, and using the sensor to sense a physiological property of the subject in each location. At least once thereafter, the method operates the remote navigation system to bring a sensor carried on a medical device successively into a series of locations in a predetermined pattern relative to at least one location selected from the predetermined pattern in the immediate preceding step based upon the sensed physiological property value, and uses the sensor to sense the physiological property in each location.
摘要翻译：提供了一种用于控制远程导航系统导航对象中的操作区域中的医疗设备的方法，包括：操作所述远程导航系统，使医疗设备上承载的传感器以预定模式连续地进入多个位置;以及使用传感器来感测每个位置的受试者的生理特性。此后至少一次，该方法操作远程导航系统，以使基于医疗设备的传感器相对于在紧接在前的步骤中的预定模式中选择的至少一个位置，以预定模式连续地进入一系列位置，基于感测生理特性值，并使用传感器感测每个位置的生理特性。

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