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21.发明授权
公开(公告)号：US6015414A
公开(公告)日：2000-01-18
申请号：US920446
申请日：1997-08-29
CPC分类号： A61M25/0127 , A61B34/73 , A61B90/10 , A61M25/01 , A61B2034/732 , A61B2090/374 , A61B6/12
摘要： The movement of a catheter through a medium, which may be living tissue such as a human brain, is controlled by mechanically pushing a flexible catheter having a magnetic tip through the medium and applying a magnetic field having a magnitude and a direction that guides the mechanically-pushed catheter tip stepwise along a desired path. The magnetic field is controlled in a Magnetic Stereotaxis System by a processor using an adaptation of a PID (proportional, integral, and derivative) feedback method. The magnetic fields are applied by superconducting coils, and the currents applied through the coils are selected to minimize a current metric.
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公开(公告)号：US07161453B2
公开(公告)日：2007-01-09
申请号：US11296190
申请日：2005-12-07
IPC分类号： H01F7/02
CPC分类号： H01F7/0278 , A61B6/12 , A61B34/70 , A61B34/73 , A61B2034/732 , A61B2034/733 , Y10T29/49075 , Y10T29/49078
摘要： A magnet assembly comprising a magnet mounted for pivoting about a first axis spaced from the magnet, and rotating about a second axis that is perpendicular to and intersects with the first axis. The magnet comprising a plurality of segments each with a magnetization direction such that through a combination of pivoting and rotating the magnet projects a magnetic field in any direction at an operating point spaced from the front of the assembly. The segmented construction with segments of different magnetization directions allows small changes in the orientation of the magnet to substantially change the magnet field direction at a system operating point.
摘要翻译： 一种磁体组件，包括安装用于围绕与磁体间隔开的第一轴线枢转并围绕垂直于第一轴线并与其相交的第二轴线旋转的磁体。 磁体包括多个段，每个段具有磁化方向，使得通过枢转和旋转磁体的组合在与组件的前部间隔开的操作点处以任何方向突出磁场。 具有不同磁化方向的段的分段结构允许磁体的取向的小的变化，以在系统工作点基本上改变磁场方向。
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公开(公告)号：US06975197B2
公开(公告)日：2005-12-13
申请号：US10056227
申请日：2002-01-23
CPC分类号： H01F7/0278 , A61B6/12 , A61B34/70 , A61B34/73 , A61B2034/733
摘要： A magnet assembly comprising a magnet mounted for pivoting about a first axis spaced from the magnet, and rotating about a second axis that is perpendicular to and intersects with the first axis. The magnet comprising a plurality of segments each with a magnetization direction such that through a combination of pivoting and rotating the magnet projects a magnetic field in any direction at an operating point spaced from the front of the assembly. The segmented construction with segments of different magnetization directions allows small changes in the orientation of the magnet to substantially change the magnet field direction at a system operating point.
摘要翻译： 一种磁体组件，包括安装用于围绕与磁体间隔开的第一轴线枢转并围绕垂直于第一轴线并与其相交的第二轴线旋转的磁体。 磁体包括多个段，每个段具有磁化方向，使得通过枢转和旋转磁体的组合在与组件的前部间隔开的操作点处以任何方向突出磁场。 具有不同磁化方向的段的分段结构允许磁体的取向的小的变化，以在系统工作点基本上改变磁场方向。
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公开(公告)号：US07966059B2
公开(公告)日：2011-06-21
申请号：US11699003
申请日：2007-01-26
IPC分类号： A61B6/00
CPC分类号： H01F7/0278 , A61B6/12 , A61B34/70 , A61B34/73 , A61B2034/732
摘要： A system for magnetically navigating a medical device in an operating region within the body of a patient. The system includes a magnet having a front field projecting from the front of the magnet sufficient to project a magnetic field into the operating region in the patient. The magnet is mounted for movement between a navigation position in which the magnet is located adjacent to the patient with the front of the magnetic generally facing the operating region, and an imaging position in which the magnet is spaced from the patient and the front generally faces away from the operating region.
摘要翻译： 一种用于在患者体内的操作区域中磁性导航医疗装置的系统。 该系统包括具有从磁体的前部突出的前场的磁体，其足以将磁场投射到患者的操作区域中。 磁体被安装成在磁体位于与病人相邻的导航位置之间移动，磁体的大致面向操作区域的磁体的前部，以及磁体与患者间隔开的成像位置， 远离经营区域。
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公开(公告)号：US07662126B2
公开(公告)日：2010-02-16
申请号：US11514690
申请日：2006-09-01
IPC分类号： A61B17/20
CPC分类号： A61B8/481 , A61B8/0833
摘要： A system and method are provided for attracting a magnetically responsive substance inserted in a subject's body towards a target area within the body to treat the area. The system generally comprises a medical device having a proximal end, a distal end, and at least one magnetic element disposed at the distal end of the medical device for orienting the distal end in a desired direction to place an aperture against the opposite wall of the vessel. The system further includes a voltage that may be applied to a coil that is disposed on the side of the medical device and proximally spaced from the magnetic element. A voltage is applied to the coil to attract the magnetically responsive substances inserted into the body around the coil. A high frequency alternating current voltage is applied to an adjacent transducer to ultrasonically disperse the collected magnetically responsive substances into the surrounding target tissue.
摘要翻译： 提供了一种系统和方法，用于将插入到受检者体内的磁性反应物质朝向身体内的目标区域吸引以对该区域进行处理。 该系统通常包括具有近端，远端和设置在医疗装置的远端处的至少一个磁性元件的医疗装置，用于将远端定向在期望的方向上，以将孔抵靠在 船只。 该系统还包括可施加到设置在医疗装置一侧并且与磁性元件近距离间隔的线圈的电压。 向线圈施加电压以吸引插入到绕线圈体内的磁性物质。 将高频交流电压施加到相邻的换能器，以将收集的磁响应物质超声分散到周围的靶组织中。
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公开(公告)号：US07305263B2
公开(公告)日：2007-12-04
申请号：US10801062
申请日：2004-03-15
IPC分类号： A61B5/05
CPC分类号： A61B90/10 , A61B34/73 , A61B90/361 , A61B2034/732
摘要： A magnetic navigation system for orienting a magnetically responsive medical device in a selected direction within an operating region in a subject's body. The system includes a support for supporting the subject, a magnet system a magnetic field to the operating region, and an imaging system. The magnet system includes at least two magnets disposed on opposite sides of the operating region for applying a magnetic field of at least 0.08 Tesla in any selected direction in the operating region by a change of the position and/or orientation of the magnets within an exclusion zone volume. The imaging system includes an imaging beam source and an imaging beam detector disposed on opposite sides of the operating region. The source and the detector being carried on a C-arm which can pivot about an axis generally parallel to the longitudinal axis of the subject to change the imaging angle. The magnets of the magnet system being configured and positioned so that the C-arm can pivot through at least about 60° without impinging upon the exclusion zone of the magnets.
摘要翻译： 一种磁性导航系统，用于在受试者的身体的操作区域内沿着选定的方向定向磁响应医疗装置。 该系统包括用于支撑被摄体的支撑件，磁体系统到操作区域的磁场以及成像系统。 磁体系统包括设置在操作区域的相对侧上的至少两个磁体，用于通过在排除物内的磁体的位置和/或取向的改变来施加在操作区域中的任何所选方向上至少0.08特斯拉的磁场 区域卷。 成像系统包括成像束源和设置在操作区域的相对侧上的成像束检测器。 源和检测器被携带在C形臂上，该C形臂可围绕大致平行于被检体的纵向轴线的轴线转动以改变成像角度。 磁体系统的磁体被构造和定位成使得C形臂能够枢转至少约60°而不会碰到磁体的排除区域。
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公开(公告)号：US06677752B1
公开(公告)日：2004-01-13
申请号：US09716621
申请日：2000-11-20
IPC分类号： G01V300
CPC分类号： G01R33/421
摘要： A shield for controlling a magnetic field emanating from a magnetic in a magnetic medical treatment instrument has the form of a circular shaped band with opposite open ends and a center axis extending perpendicularly between the open ends. The magnet in the magnetic medical treatment instrument moves about an operating table having a surface upon which a patient being operated on by a physician reposes. The circular shaped shield surrounds the magnet and is spaced away from the magnet in a manner to allow the physician to enter the interior of the band and operate on the patient. The band has opposite first and second parallel planar portions. The top surface of the operating table and the first and second planar portions of the band are parallel to each other. The operating table has a length and a width, and the length of the operating table is parallel to the center axis of the band.
摘要翻译： 用于控制磁性医疗器械中的磁场发出的磁场的屏蔽件具有相对开口端的圆形带状物和在开口端之间垂直延伸的中心轴线的形式。 磁性医疗器械中的磁体围绕具有医生操作的患者所在的表面的操作台移动。 圆形屏蔽围绕磁体并且以允许医师进入带内部并对患者进行操作的方式与磁体间隔开。 带具有相对的第一和第二平行平面部分。 手术台的上表面和带的第一和第二平面部分彼此平行。 操作台具有长度和宽度，操作台的长度平行于带的中心轴。
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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：US07603905B2
公开(公告)日：2009-10-20
申请号：US11483397
申请日：2006-07-07
CPC分类号： A61B6/12 , A61B5/06 , A61B34/70 , A61B34/73 , A61B2034/732 , A61B2090/376
摘要： A system for imaging and magnetically navigating a medical device within an operating region in a subject's body includes a first C-arm and a second C-arm. The system includes an imaging beam source and an imaging beam receiver mounted on the first C-arm disposed on opposite sides of the operating region to image the operating region. The system includes a pair of magnetic pods, which are movably mounted on either the first or second C-arm. The magnetic pods are movable between an imaging position and a navigating position in which the pods are disposed on opposite sides of the operating region in the same plane as at least one imaging beam source. The second C-arm is movable between an imaging position in which the imaging beam source and imaging beam receiver on the second C-arm is positioned so that the imaging beam sources and receivers are in the same plane.
摘要翻译： 用于在被检体的操作区域内对医疗装置进行成像和磁导航的系统包括第一C形臂和第二C形臂。 该系统包括成像光束源和安装在操作区域的相对侧上的第一C形臂上的成像光束接收器，以成像操作区域。 该系统包括可移动地安装在第一或第二C形臂上的一对磁性盒。 磁性盒可以在成像位置和导航位置之间移动，在该位置中，荚在与至少一个成像束源在相同的平面中设置在操作区域的相对侧上。 第二C形臂可在其中成像光束源和第二C形臂上的成像光束接收器定位成使成像光束源和接收器处于同一平面的成像位置之间移动。
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公开(公告)号：US07019610B2
公开(公告)日：2006-03-28
申请号：US10347525
申请日：2003-01-17
IPC分类号： H01F7/02
CPC分类号： H01F7/0278 , A61B6/12 , A61B34/70 , A61B34/73 , A61B2034/732 , A61B2034/733
摘要： A system for magnetically navigating a medical device in an operating region within the body of a patient. The system includes a magnet having a front field projecting from the front of the magnet sufficient to project a magnetic field into the operating region in the patient. The magnet is mounted for movement between a navigation position in which the magnet is located adjacent to the patient with the front of the magnetic generally facing the operating region, and an imaging position in which the magnet is spaced from the patient and the front generally faces away from the operating region.
摘要翻译： 一种用于在患者体内的操作区域中磁性导航医疗装置的系统。 该系统包括具有从磁体的前部突出的前场足以将磁场投射到患者的操作区域中的磁体。 磁体被安装成在磁体位于与病人相邻的导航位置之间移动，磁体的大致面向操作区域的磁体的前部，以及磁体与患者间隔开的成像位置， 远离经营区域。
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