公开(公告)号：US08196590B2

公开(公告)日：2012-06-12

申请号：US12145419

申请日：2008-06-24

申请人： Michael E. Sabo ,  Rogers C. Ritter ,  Roger N. Hastings ,  Raju R. Viswanathan

发明人： Michael E. Sabo ,  Rogers C. Ritter ,  Roger N. Hastings ,  Raju R. Viswanathan

IPC分类号： A61B19/00 ,  A61M35/00

CPC分类号： A61B5/055 ,  A61B5/06

摘要： A method of navigating a medical device in an operating region in a subject. The method includes applying a magnetic field to the operating region and changing the magnetic moment of the medical device by selectively changing a physical condition of at least one magnet element in the medical device to change the orientation of the device with respect to the applied magnetic field.

摘要翻译： 一种在受试者的操作区域中导航医疗装置的方法。 该方法包括通过选择性地改变医疗装置中的至少一个磁体元件的物理状态来改变医疗装置的磁矩并改变相对于所施加的磁场的装置的取向来改变操作区域的磁场 。

公开(公告)号：US08192374B2

公开(公告)日：2012-06-05

申请号：US11484884

申请日：2006-07-11

申请人： Raju R. Viswanathan

发明人： Raju R. Viswanathan

IPC分类号： A61B5/103 ,  A61B5/117 ,  A61B5/05 ,  A61B17/00 ,  A61B18/04

CPC分类号： A61B18/04 ,  A61B34/20 ,  A61B34/73 ,  A61B2034/102 ,  A61B2034/2051 ,  A61B2090/064 ,  A61B2090/065

摘要： A method is provided for establishing contact of a medical device against a tissue surface within a subject body, the method comprising determination of the geometrical configuration of the distal portion of the medical device, and using this together with known control variable information to determine and control the contact force of the distal tip of the medical device against the tissue surface.

摘要翻译： 提供了一种用于建立医疗装置与受试者身体内的组织表面的接触的方法，所述方法包括确定医疗装置的远端部分的几何构型，并将其与已知的控制变量信息一起确定和控制 医疗装置的远端顶端对组织表面的接触力。

公开(公告)号：US08088129B2

公开(公告)日：2012-01-03

申请号：US12628711

申请日：2009-12-01

申请人： Peter R. Werp ,  Walter M. Blume ,  Francis M. Creighton, IV ,  Rogers C. Ritter

发明人： Peter R. Werp ,  Walter M. Blume ,  Francis M. Creighton, IV ,  Rogers C. Ritter

IPC分类号： A61B19/00

CPC分类号： A61M25/0127 ,  A61B6/12 ,  A61B34/73 ,  A61B90/10 ,  A61B2034/732 ,  A61B2090/374 ,  A61M25/01

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.

摘要翻译： 通过机械地将具有磁性尖端的柔性导管机械地推动通过介质并且施加具有引导机械的大小和方向的磁场来控制导管通过可能是诸如人脑的活体组织的介质的移动 沿着所需的路径逐步引导导管末端。 通过使用PID（比例，积分和微分）反馈方法的调整的处理器在磁立体定位系统中控制磁场。 磁场由超导线圈施加，并且通过线圈施加的电流被选择以使电流量度最小化。

公开(公告)号：US07966059B2

公开(公告)日：2011-06-21

申请号：US11699003

申请日：2007-01-26

申请人： Francis M. Creighton, IV ,  Seth Burgett

发明人： Francis M. Creighton, IV ,  Seth Burgett

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。

公开(公告)号：US07772950B2

公开(公告)日：2010-08-10

申请号：US12391302

申请日：2009-02-24

申请人： Ilker Tunay

发明人： Ilker Tunay

IPC分类号： H01F7/02 ,  H01F7/00 ,  H01F1/00

CPC分类号： A61B5/06 ,  A61B5/062

摘要： A method and apparatus for dynamic magnetic field control using multiple magnets. Control methods and system means are described that allow dynamically changing the magnetic field generated at a point in space by a multiplicity of magnets.

摘要翻译： 一种使用多个磁体进行动态磁场控制的方法和装置。 描述了控制方法和系统装置，其允许通过多个磁体来动态地改变在空间点产生的磁场。

公开(公告)号：US07766856B2

公开(公告)日：2010-08-03

申请号：US11770639

申请日：2007-06-28

申请人： Steven J. Ferry ,  Jennifer R. Finney ,  Cam Habeger ,  Vincent Hackenmueller ,  Andrew F. Hall ,  Reed A. Houge ,  Scott G. Klimek ,  Michael J. Pikus

发明人： Steven J. Ferry ,  Jennifer R. Finney ,  Cam Habeger ,  Vincent Hackenmueller ,  Andrew F. Hall ,  Reed A. Houge ,  Scott G. Klimek ,  Michael J. Pikus

IPC分类号： A61N1/30 ,  A61M37/00

CPC分类号： A61M25/0113 ,  A61B34/25 ,  A61B34/70 ,  A61B2034/301

摘要： An advancer system is described for moving an elongate medical device within a body. The system includes a drive unit having a motor. The drive unit is configured to translate movement of the motor to the device so as to alternately advance and retract the device relative to the body. The advancer system also includes a user-operable control system configured to control the drive unit. The control system can interface with a magnetic navigation system. The above-described system allows an operating physician to control catheter advancement and retraction while remaining outside an x-ray imaging field. Thus the physician is freed from repeated x-ray exposure.

摘要翻译： 描述了用于在身体内移动细长医疗装置的推进器系统。 该系统包括具有马达的驱动单元。 驱动单元被配置为将马达的运动转换到装置，以便相对于身体交替地推进和缩回装置。 推进器系统还包括被配置为控制驱动单元的用户可操作的控制系统。 控制系统可与磁性导航系统连接。 上述系统允许操作医师控制导管前进和缩回，同时保留在x射线成像领域外。 因此，医生可以免除重复的x射线照射。

公开(公告)号：US07751867B2

公开(公告)日：2010-07-06

申请号：US11314826

申请日：2005-12-20

申请人： Raju R. Viswanathan

发明人： Raju R. Viswanathan

IPC分类号： A61B5/05 ,  A61B19/00

CPC分类号： A61B1/00158 ,  A61B5/042 ,  A61B5/06 ,  A61B5/1076 ,  A61B5/6885 ,  A61B34/73

摘要： A method is provided for establishing contact of a medical device against a three-dimensional surface geometry within a subject body, the method comprising obtaining a three-dimensional tissue surface geometry of an anatomical region within the subject body, obtaining a target location on the surface for the device to contact, determining local surface geometry information in a neighborhood of the target location, and using this information to determine a change of at least one control variable for effecting an over-torque of the medical device to enhance contact of the device with the target surface.

摘要翻译： 提供了一种用于建立医疗装置与受试者体内的三维表面几何形状的接触的方法，所述方法包括获得所述对象体内的解剖区域的三维组织表面几何形状，获得所述表面上的目标位置 用于使所述设备接触，确定所述目标位置附近的局部表面几何信息，以及使用所述信息来确定用于实现所述医疗设备的过扭矩的至少一个控制变量的变化，以增强所述设备与 目标表面。

公开(公告)号：US07662126B2

公开(公告)日：2010-02-16

申请号：US11514690

申请日：2006-09-01

申请人： Francis M. Creighton, IV

发明人： Francis M. Creighton, IV

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。

公开(公告)号：US07540288B2

公开(公告)日：2009-06-02

申请号：US11146411

申请日：2005-06-06

申请人： Raju R. Viswanathan ,  Walter M. Blume ,  Jeffrey M. Garibaldi ,  John Rauch

发明人： Raju R. Viswanathan ,  Walter M. Blume ,  Jeffrey M. Garibaldi ,  John Rauch

IPC分类号： A61B19/00

CPC分类号： A61B6/548 ,  A61B6/12 ,  A61B8/0833 ,  A61B34/20 ,  A61B34/25 ,  A61B34/70 ,  A61B34/73 ,  A61B90/37 ,  A61B2034/105 ,  A61B2034/107 ,  A61B2034/2051 ,  A61B2034/2074 ,  A61B2090/364 ,  A61B2090/376 ,  A61B2090/3958

摘要： An interface for remotely controlling a medical device in a patient's body provides a two dimensional display of a three dimensional rendering of the operating region, and allows the user to select the orientation or location of the distal end of the medical device on the display and then operate a navigation system to cause the distal end of the medical device to approximately assume the selected orientation or location.

公开(公告)号：US20080016677A1

公开(公告)日：2008-01-24

申请号：US11650856

申请日：2007-01-08

申请人： Francis Creighton

发明人： Francis Creighton

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。