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公开(公告)号：US5654864A
公开(公告)日：1997-08-05
申请号：US280124
申请日：1994-07-25
摘要： A control method permits the operation of multiple superconducting magnetic coils so as to move a magnetic object to precisely specified locations within the body under command of a physician-operator observing the motion with live fluoroscopic imaging fused with more detailed preoperative imaging of some other kind. A computer contains the preoperative images and the fluoroscopic images, as well as the means to effect changes in the coil currents so as to accomplish the desired magnetic object motion and positioning. The control method operates the coils in pairs on opposite sides of the body in a manner to minimize the necessary current changes, thus avoiding the quenching of the superconducting coils. Combinations of these pairs can execute motion of the magnetic object in any direction in an impulsive manner and with high precision. The method should function well and provide advantages with coils which are not superconducting as well. The method overcomes the redundance present in the limited constraints given by a simple movement vector by the physician-operator.
摘要翻译： 控制方法允许多个超导磁性线圈的操作，以便在医师操作者的指令下，将磁性物体移动到身体内的精确指定的位置，用活体荧光成像器观察运动，并与更为详细的其它类型的术前成像融合在一起。 计算机包括术前图像和透视图像，以及实现线圈电流变化以便实现期望的磁性物体运动和定位的手段。 控制方法以使得必要的电流变化最小化的方式在体的相对侧成对地操作线圈，从而避免超导线圈的淬火。 这些对的组合可以以脉冲方式和高精度执行任何方向的磁性物体的运动。 该方法应该能够很好地工作，并且提供不超导线圈的优点。 该方法克服了由医师操作者由简单运动矢量给出的有限约束中存在的冗余。
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公开(公告)号：US20230068563A1
公开(公告)日：2023-03-02
申请号：US17899320
申请日：2022-08-30
申请人： Stereotaxis, Inc.
IPC分类号： A61B18/14
摘要： Embodiments described herein relate to magnetically steerable irrigated ablation catheters and methods of operating the same. A steerable catheter can include a distal tip including a first set of magnets. The steerable catheter further includes a shaft. The shaft includes a flexible section with a distal end coupled to the distal tip. The shaft further includes a second set of magnets spaced along a length of the flexible section and spaced from the first set of magnets such that the first and second sets of magnets collectively enable the flexible section to curve without kinking in response to a magnetic field being applied to the first and second set of magnets. In some embodiments, each magnet from the second set of magnets can be coupled to the flexible section via metallic elements disposed at the ends of each magnet.
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公开(公告)号：US20140107661A1
公开(公告)日：2014-04-17
申请号：US14043387
申请日：2013-10-01
IPC分类号： A61B19/00
CPC分类号： A61B19/22 , A61B34/70 , A61B34/73 , A61B2017/00106 , A61B2017/003
摘要： An apparatus and method for interventional navigation within a subject's body is provided in which a medical device having at least one electrostrictive element is adapted to cause the distal end of the medical device to bend in a given direction for improving navigation. The medical device may further comprise at least one magnetically responsive element on the distal end, which may be oriented in the approximate direction of a magnetic field that is applied to the subject's body. At least one method for navigating a medical device though a subject's body is provided, by changing the direction of an applied magnetic field to align a magnetically responsive element on the distal end for orienting the distal end, and by applying a voltage to at least one electrostrictive element disposed in the distal portion of the device for causing the distal end to change orientation from that achieved by application of the magnetic field alone.
摘要翻译： 提供了一种用于受试者身体内的介入导航的装置和方法，其中具有至少一个电致伸缩元件的医疗装置适于使医疗装置的远端沿给定方向弯曲以改善导航。 医疗装置还可以包括远端上的至少一个磁响应元件，其可以被施加到被检体的磁场的大致方向上定向。 通过改变所施加的磁场的方向以使远端上的磁响应元件对准以使远端定向，并且通过向至少一个电极施加电压，提供至少一种用于通过受试者身体导航医疗装置的方法 电致伸缩元件设置在装置的远端部分中，用于使远端改变方向与通过仅施加磁场实现的方向。
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公开(公告)号：US08244824B2
公开(公告)日：2012-08-14
申请号：US11670943
申请日：2007-02-02
IPC分类号： G06F15/16
摘要： A method of operating a plurality of computer systems includes translating inputs generated by the operation of an input device associated with a first computer into control signals for operating at least one other computer system to operate the at least one other computer system in a corresponding manner.
摘要翻译： 操作多个计算机系统的方法包括将通过与第一计算机相关联的输入设备的操作生成的输入转换成用于操作至少一个其他计算机系统的控制信号，以以相应的方式操作所述至少一个其他计算机系统。
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公开(公告)号：US08231618B2
公开(公告)日：2012-07-31
申请号：US12265013
申请日：2008-11-05
IPC分类号： A61B18/14
CPC分类号： A61M25/09 , A61B18/1492 , A61B2018/00101 , A61B2034/2051 , A61M2025/09183
摘要： This invention describes 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; an 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; an insulating dielectric coating along a substantial portion of the length of the electrical conductor, with the dielectric 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 in order to position the electrode substantially adjacent to the target location.
摘要翻译： 本发明描述了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的长度的大部分，电介质涂层的介电常数小于约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，以使电极基本上邻近目标位置。
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66.发明授权公开(公告)号：US08092450B2
公开(公告)日：2012-01-10
申请号：US11627406
申请日：2007-01-26
IPC分类号： A61B18/18
CPC分类号： A61N1/05 , A61B5/062 , A61B18/1492 , A61B34/73 , A61B2017/00252 , A61M25/0127
摘要： An energy delivery apparatus for delivering electrical energy at a target location, the energy delivery apparatus being usable in combination with a magnetic field. The energy delivery apparatus includes an electrical conductor, the electrical conductor having a substantially elongated configuration; an electrode for delivering the electrical energy at the target location, the electrode being electrically coupled to the electrical conductor and located at a predetermined location therealong; and a guiding element mounted to the electrical conductor in a substantially spaced apart relationship relative to the electrode, the guiding element including a magnetically responsive material. The energy delivery apparatus is constructed such that a movement of the guiding element causes a corresponding movement of the electrode. The magnetic field is used to move the guiding element in order 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，能量输送装置可与磁场组合使用。 能量输送装置包括电导体，电导体具有基本上细长的构型; 用于在目标位置传送电能的电极，电极电耦合到电导体并且位于其上的预定位置处; 以及引导元件，其相对于所述电极以基本上间隔开的关系安装到所述电导体，所述引导元件包括磁响应材料。 能量输送装置被构造成使得引导元件的运动引起电极的相应移动。 磁场用于移动引导元件，以使电极基本上邻近目标位置。
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67.发明授权公开(公告)号：US08060184B2
公开(公告)日：2011-11-15
申请号：US11781236
申请日：2007-07-20
IPC分类号： A61B5/05
摘要： A method of navigating the distal end of a medical device through an operating region in a subject's body includes displaying an x-ray image of the operating region, including the distal end of the medical device; determining the location of the distal end of the medical device in a reference frame translatable to the displayed x-ray image; and displaying an enhanced indication of the distal end of the medical device on the x-ray image to facilitate the navigation of the distal end of the device in the operating region.
摘要翻译： 通过主体的操作区域导航医疗装置的远端的方法包括显示包括医疗装置的远端的操作区域的X射线图像; 确定所述医疗装置的远端在参考框架中的位置，所述参考框架可转换成所显示的X射线图像; 以及在x射线图像上显示医疗装置的远端的增强指示，以便于在操作区域中设备的远端的导航。
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公开(公告)号：US07774046B2
公开(公告)日：2010-08-10
申请号：US10799358
申请日：2004-03-12
IPC分类号： A61B5/05
CPC分类号： A61B90/10 , A61B6/12 , A61B34/70 , A61B34/73 , A61B90/361 , A61B2034/732
摘要： A magnetic navigation system for orienting a magnetically responsive device in an operating region in a subject has at least two magnet units and a support for mounting the at least two magnet units for movement relative to the subject, the support supporting the at least two magnet units adjacent the operating region in the subject at locations to apply a magnetic field to the operating region. Each magnet unit includes sing a magnet and a positioner for selectively changing the position of the magnet. The system also includes a control for operating the positioners of each magnet unit to selectively change the positions of the magnets to maintain the magnetic field direction applied to the operating region by the magnets as the locations of the magnet units relative to the operating region change. The system is adapted for implementing a method of navigating according to the present invention in which the magnets in the magnet units are selectively rotated and pivoted to maintain the appropriate magnetic field direction projected by the magnets to maintain the device direction as the magnet units move on the support about the operating region.
摘要翻译： 用于使受检者的操作区域中的磁响应装置定向的磁导航系统具有至少两个磁体单元和用于安装所述至少两个磁体单元以相对于被摄体移动的支撑件，所述支撑件支撑所述至少两个磁体单元 邻近被检体的操作区域，以对操作区域施加磁场。 每个磁体单元包括磁铁和用于选择性地改变磁体位置的定位器。 该系统还包括用于操作每个磁体单元的定位器的控制器，以便随着磁体单元相对于操作区域的位置的改变，磁体的位置可选择性地改变磁体的位置，以保持施加到操作区域的磁场方向。 该系统适于实现根据本发明的导航方法，其中磁体单元中的磁体选择性地旋转和枢转，以保持由磁体投射的适当的磁场方向，以在磁体单元移动时维持装置方向 关于经营地区的支持。
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公开(公告)号：US07771437B2
公开(公告)日：2010-08-10
申请号：US11151727
申请日：2005-06-13
IPC分类号： A61B19/00
CPC分类号： A61M25/0127 , A61B17/3417 , A61B17/3421 , A61B90/11 , A61B2017/003 , A61B2017/2927
摘要： A guide for controlling the orientation of a medical device includes a cannula having a lumen therein for the medical device, and a guide member having a passage therein for receiving and directing the medical device, the guide member being movably mounted in the cannula for movement. The guide member can be magnetically responsive to an externally applied magnetic field, or can be magnetically responsive to an externally applied magnetic field when a magnetic medical device is in the passage, and/or it can be mechanically responsive.
摘要翻译： 用于控制医疗装置的取向的引导件包括其中具有用于医疗装置的内腔的套管，以及具有用于接收和引导医疗装置的通道的引导构件，所述引导构件可移动地安装在套管中以便移动。 引导构件可以对外部施加的磁场进行磁响应，或者当磁性医疗装置在通道中时可以对外部施加的磁场进行磁响应，和/或其可以是机械响应的。
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公开(公告)号：US07769444B2
公开(公告)日：2010-08-03
申请号：US11478443
申请日：2006-06-29
申请人： Carlo Pappone
发明人： Carlo Pappone
IPC分类号： A61N1/00
CPC分类号： A61N1/3621 , A61N1/0563 , A61N1/0573
摘要： A method of treating cardiac arrhythmias resulting from errant electrical signals conducted through the cardiac tissue from a source location. The magnitude of the errant signals is reduced by shunting electrical signals from the source location with an electrically conductive element having a sufficiently low impedance.
摘要翻译： 一种治疗由源位置穿过心脏组织传导的错误电信号引起的心律失常的方法。 通过用具有足够低阻抗的导电元件从源位置分流电信号来减少错误信号的幅度。
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