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    Digital magnetic system for magnetic surgery
    11.
    发明授权
    Digital magnetic system for magnetic surgery 有权
    磁性手术数字磁系统

    公开(公告)号：US06311082B1

    公开(公告)日：2001-10-30

    申请号：US09251164

    申请日：1999-02-17

    申请人： Francis M. Creighton, IV ,  Bevil J. Hogg ,  Rogers C. Ritter

    发明人： Francis M. Creighton, IV ,  Bevil J. Hogg ,  Rogers C. Ritter

    IPC分类号： A61B505

    CPC分类号： A61B1/00158 ,  A61B34/20 ,  A61B34/73 ,  A61B90/10 ,  A61B2034/733 ,  A61B2090/376 ,  H02K41/00

    摘要： A device and a method for guiding or applying force to a magnetic implant within the body of a patient. The device includes a bed for support of the patient, a set of separately energizable electromagnets or separately controllable permanent magnets so arranged to produce magnetic fields of varying orientations in a treatment region of the patient, and a processor that controls the currents in the electromagnets, or shutters on the permanent magnets to produce a selected magnetic field and/or gradient for guiding or moving the implant. The magnets are configured to allow a medical imaging device to be used to provide a real-time display of an operating procedure in which magnetic guidance is used. The method for guiding the implant includes the placing of the body on the bed, which may be servo-controlled, inserting a magnetically-guided implant into the treatment region, arranging the magnets around the body so that they can supply the necessary magnetic fields and/or gradients through appropriate energization of subsets of the magnets, and applying current or shutter control to subsets of the magnets to provide a guiding magnetic field for the implant, which may occur while real-time medical imaging of the procedure is occurring. The bed may be moved under servo control to provide further control of the direction and magnitude of the magnetic field affecting the implant.

    摘要翻译： 用于引导或施加力到患者体内的磁性植入物的装置和方法。 该装置包括用于支撑患者的床，一组单独可激励的电磁体或单独控制的永磁体，其被布置成产生患者治疗区域中具有不同取向的磁场，以及控制电磁体中的电流的处理器， 或快门以产生用于引导或移动植入物的选定的磁场和/或梯度。 磁体被配置为允许医疗成像装置用于提供其中使用磁性引导的操作过程的实时显示。 用于引导植入物的方法包括将身体放置在可以被伺服控制的床上，将磁引导植入物插入治疗区域中，将磁体布置在身体周围，使得它们可以提供必要的磁场和 /或通过磁体的子集的适当激励梯度，以及将电流或快门控制施加到磁体的子集，以为在该过程的实时医学成像发生时可能发生的植入物提供引导磁场。 床可以在伺服控制下移动，以进一步控制影响植入物的磁场的方向和幅度。

    Articulated magnetic guidance systems and devices and methods for using same for magnetically-assisted surgery
    13.
    发明授权
    Articulated magnetic guidance systems and devices and methods for using same for magnetically-assisted surgery 失效
    铰接磁导引系统及其用于磁辅助手术的装置和方法

    公开(公告)号：US06459924B1

    公开(公告)日：2002-10-01

    申请号：US09189633

    申请日：1998-11-10

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

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

    IPC分类号： A61B600

    CPC分类号： A61B1/00158 ,  A61B34/70 ,  A61B34/73 ,  A61B90/10 ,  A61B2034/733 ,  A61B2090/376 ,  A61M25/0127

    摘要： An articulated magnet assembly optionally includes one or two additional fixed magnets to guide or move such as by pulling or pushing a magnetic structure in the body. The magnetic structure may be a magnetic tip of a catheter or a magnetic seed, or other such magnetic assembly, implant or device. The device is arranged to facilitate biplanar, real-time, X-ray imaging of the patient. The moved magnet can be a large, strong permanent magnet or a cored solenoid. The added, fixed electromagnets may have either normally conducting or superconducting coils. The magnet on the articulated magnet assembly can move radially, along a polar direction, and at an azimuthal angle, and may also pivot in place to direct an opposite pole of the magnet in the direction of the patient. Magnetically-assisted surgery can be performed, in some instances, by pivoting the magnet on one or two axes without withdrawing it from the vicinity of the patient to control the direction and/or orientation of a temporarily or permanently implanted magnetic surgical device. If the magnet is an electromagnetic coil, this pivoting may or may not have to be accompanied by a ramping of current in the coil.

    摘要翻译： 铰接式磁体组件可选地包括一个或两个额外的固定磁体，以引导或移动，例如通过拉动或推动体内的磁性结构。 磁性结构可以是导管或磁性种子的磁性尖端，或其他这样的磁性组件，植入物或装置。 该装置被设置为便于患者的双平面，实时，X射线成像。 移动的磁体可以是大的，强的永久磁铁或磁心线圈。 所添加的固定电磁铁可以具有正常导电或超导线圈。 关节式磁体组件上的磁体可以沿着极性方向和方位角径向移动，并且还可以枢转到适当位置，以引导磁体在患者方向上的相反极点。 在一些情况下，可以进行磁辅助手术，通过在一个或两个轴上枢转磁体而不将其从患者附近撤出，以控制临时或永久植入的磁性手术装置的方向和/或取向。 如果磁体是电磁线圈，则该枢转可能伴随着线圈中的电流的斜坡而不必伴随。

    Device for locating magnetic implant by source field
    18.
    发明授权
    Device for locating magnetic implant by source field 失效
    用于通过源场定位磁性植入物的装置

    公开(公告)号：US07010338B2

    公开(公告)日：2006-03-07

    申请号：US10337237

    申请日：2003-01-06

    申请人： Rogers C. Ritter ,  Bevil J. Hogg ,  Peter R. Werp ,  Francis M. Creighton, IV

    发明人： Rogers C. Ritter ,  Bevil J. Hogg ,  Peter R. Werp ,  Francis M. Creighton, IV

    IPC分类号： A61B5/00

    CPC分类号： A61B5/066 ,  A61B5/06 ,  A61B5/743

    摘要： An apparatus and method for locating a magnetic implant in a surgical application using the field of a source magnet for the implant guiding field. The source magnet is an electromagnet having a separate calibrated magnetic field component in addition to the guiding field, so that both the magnitude and orientation of the magnetic field as a function of position around the magnet are known. A magnetic implant is provided with a sensor, such as a three-axis Hall effect sensor, to provide an indication of the magnitude and orientation of an applied magnetic field when the implant is surgically implanted in a patient. After implantation, the source magnet is energized with a current having a modulated component. The modulated component is received and filtered from the signal received from the Hall effect sensor in the implant, and provided to a processor that computes the location of the implant.

    摘要翻译： 一种用于在外科应用中使用用于植入物引导区的源磁体的场来定位磁性植入物的装置和方法。 源极磁体除了引导场之外还具有单独的校准磁场分量的电磁体，使得作为磁体周围位置的函数的磁场的大小和取向都是已知的。 磁性植入物设置有诸如三轴霍尔效应传感器的传感器，以在植入物被手术植入患者体内时提供所施加的磁场的大小和取向的指示。 在植入之后，源磁体用具有调制分量的电流通电。 调制分量从在植入物中从霍尔效应传感器接收的信号接收和滤波，并提供给计算植入物位置的处理器。

    Digital magnetic system for magnetic surgery
    20.
    发明授权
    Digital magnetic system for magnetic surgery 失效

    公开(公告)号：US06529761B2

    公开(公告)日：2003-03-04

    申请号：US09911863

    申请日：2001-07-24

    申请人： Francis M. Creighton, IV ,  Bevil J. Hogg ,  Rogers C. Ritter

    发明人： Francis M. Creighton, IV ,  Bevil J. Hogg ,  Rogers C. Ritter

    IPC分类号： A61B505

    CPC分类号： A61B1/00158 ,  A61B34/20 ,  A61B34/73 ,  A61B90/10 ,  A61B2034/733 ,  A61B2090/376 ,  H02K41/00

    摘要： A device and a method for guiding or applying force to a magnetic implant within the body of a patient. The device includes a bed for support of the patient, a set of separately energizable electromagnets or separately controllable permanent magnets so arranged to produce magnetic fields of varying orientations in a treatment region of the patient, and a processor that controls the currents in the electromagnets, or shutters on the permanent magnets to produce a selected magnetic field and/or gradient for guiding or moving the implant. The magnets are configured to allow a medical imaging device to be used to provide a real-time display of an operating procedure in which magnetic guidance is used. The method for guiding the implant includes the placing of the body on the bed, which may be servo-controlled, inserting a magnetically-guided implant into the treatment region, arranging the magnets around the body so that they can supply the necessary magnetic fields and/or gradients through appropriate energization of subsets of the magnets, and applying current or shutter control to subsets of the magnets to provide a guiding magnetic field for the implant, which may occur while real-time medical imaging of the procedure is occurring. The bed may be moved under servo control to provide further control of the direction and magnitude of the magnetic field affecting the implant.