公开(公告)号：US20080092993A1

公开(公告)日：2008-04-24

申请号：US11877661

申请日：2007-10-23

Applicant: Francis Creighton

Inventor： Francis Creighton

IPC: H01F13/00

CPC classification number: H01F7/0273 ,  A61B17/00 ,  A61B34/73 ,  A61B2034/731 ,  A61N2/00 ,  H01F7/0278 ,  H01F7/0294 ,  H01F13/003 ,  H01F41/028 ,  Y10T29/4902

Abstract: A permanent magnet in which the magnetization direction varies with location to optimize or restrict a magnetic field property in a selected direction at a selected point. The magnetic field property may be, for example, the transverse magnetic field, axial magnetic field, axial gradient of the transverse magnetic field, transverse gradient of the transverse magnetic field, axis gradient of the axial magnetic field, transverse gradient of the axial magnetic field, the product of the transverse magnetic field and the transverse gradient of the transverse magnetic field, the product of the transverse magnetic field and the axial gradient of the transverse magnetic field, the product of the axial magnetic field and the transverse gradient of the axial magnetic field, or the product of the axial magnetic field and the axial gradient of the axial magnetic field. The magnet may be formed of one or more segments in which the magnetization direction varies smoothly and continuously, or the magnet may be formed of a plurality of segments in which the magnetization direction is constant. A method of making and using such magnets is also disclosed.

Abstract translation: 一种永磁体，其中磁化方向随着位置而变化，以在选定的点优化或限制所选方向上的磁场特性。 磁场特性可以是例如横向磁场，轴向磁场，横向磁场的轴向梯度，横向磁场的横向梯度，轴向磁场的轴向梯度，轴向磁场的横向梯度 横向磁场和横向磁场横向梯度的乘积，横向磁场的乘积和横向磁场的轴向梯度，轴向磁场的乘积和轴向磁场的横向梯度 场或轴向磁场和轴向磁场的轴向梯度的乘积。 磁体可以由磁化方向平滑且连续地变化的一个或多个段形成，或者磁体可以由磁化方向恒定的多个段形成。 还公开了制造和使用这种磁体的方法。

公开(公告)号：US20070038064A1

公开(公告)日：2007-02-15

申请号：US11483397

申请日：2006-07-07

Applicant: Francis Creighton

Inventor： Francis Creighton

IPC: A61B5/05

CPC classification number: A61B6/12 ,  A61B5/06 ,  A61B34/70 ,  A61B34/73 ,  A61B2034/732 ,  A61B2090/376

Abstract: A system for imaging and magnetically navigating a medical device within an operating region in a subject's body is provided that comprises a first C-arm and a second C-arm. The system comprises an imaging beam source and an imaging beam receiver mounted on the first C-arm that are positioned to be disposed on opposite sides of the operating region to image the operating region. Some embodiments comprise a pair of magnetic pods, which are movably mounted on either the first or second C-arm. Some embodiments comprise magnetic pods that 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 magnetic navigation units may apply a navigating magnetic field of at least 0.08 T in any direction to the operating region. In some embodiments of the invention, 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.

Abstract translation: 提供了一种用于在受试者身体的操作区域内成像和磁性导航医疗装置的系统，其包括第一C形臂和第二C形臂。 该系统包括安装在第一C形臂上的成像光束源和成像光束接收器，其定位成设置在操作区域的相对侧上以对操作区域成像。 一些实施例包括可移动地安装在第一或第二C形臂上的一对磁性盒。 一些实施例包括可在成像位置和导航位置之间移动的磁性荚，其中荚在与至少一个成像束源在同一平面中的操作区域的相对侧上设置。 磁导航单元可以向操作区域施加任何方向上至少0.08T的导航磁场。 在本发明的一些实施例中，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。

公开(公告)号：US20050027285A1

公开(公告)日：2005-02-03

申请号：US10881825

申请日：2004-06-28

Applicant: Rogers Ritter ,  Bevil Hogg ,  Peter Werp ,  Walter Blume ,  Francis Creighton ,  Roger Hastings

Inventor： Rogers Ritter ,  Bevil Hogg ,  Peter Werp ,  Walter Blume ,  Francis Creighton ,  Roger Hastings

IPC: A61B1/005 ,  A61B1/01 ,  A61B17/12 ,  A61B19/00 ,  A61M25/01 ,  A61B17/00

CPC classification number: A61B1/00158 ,  A61B1/01 ,  A61B17/12022 ,  A61B17/12113 ,  A61B17/12131 ,  A61B34/70 ,  A61B34/73 ,  A61B2017/00876 ,  A61B2017/1205 ,  A61B2034/733 ,  A61M25/0105 ,  A61M25/0127

Abstract: A method of turning a medical device, having a magnetically responsive element associated with its distal end, at an operating point within an operating region inside a patients body from an initial direction to a desired final direction, through the movement of at least one external source magnet. The at least one external source magnet is moved in such a way as to change the direction of the distal end of the magnetic medical device from the initial direction to the desired final direction without substantial deviation from the plane containing the initial direction and the desired final direction.

Abstract translation: 一种通过至少一个外部源的移动来转动具有与其远端相关联的具有磁响应元件的医疗装置的方法，所述医疗装置在患者体内的操作区域内从初始方向到期望的最终方向 磁铁。 至少一个外部源磁体以使得磁性医疗装置的远端的方向从初始方向改变到期望的最终方向的方式移动，而不会从包含初始方向的平面和期望的最终方向显着偏离 方向。

公开(公告)号：US20080016677A1

公开(公告)日：2008-01-24

申请号：US11650856

申请日：2007-01-08

Applicant: Francis Creighton

Inventor： Francis Creighton

IPC: H01F7/02

CPC classification number: H01F7/0278 ,  A61B6/12 ,  A61B34/70 ,  A61B34/73 ,  A61B2034/732 ,  A61B2034/733 ,  Y10T29/49075 ,  Y10T29/49078

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070055130A1

公开(公告)日：2007-03-08

申请号：US11514690

申请日：2006-09-01

Applicant: Francis Creighton

Inventor： Francis Creighton

IPC: A61B5/05

CPC classification number: A61B8/481 ,  A61B8/0833

Abstract: 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.

Abstract translation: 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：US20070038074A1

公开(公告)日：2007-02-15

申请号：US11369903

申请日：2006-03-07

Applicant: Rogers Ritter ,  Bevil Hogg ,  Peter Werp ,  Francis Creighton

Inventor： Rogers Ritter ,  Bevil Hogg ,  Peter Werp ,  Francis Creighton

IPC: A61B5/05

CPC classification number: A61B5/066 ,  A61B5/06 ,  A61B5/743

Abstract: 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 relative to the electromagnet based upon the detected magnitude and orientation of the modulated component of the magnetic field, and the location and orientation of the electromagnet. Localizers may be used to supply the relative locations of the patient and the electromagnet to the processor. A display may be provided to display a representation of the location of the implant in the patient, which may also be superimposed over a preoperative image of the patient.

Abstract translation: 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，并提供给处理器，该处理器基于检测到的磁性调制分量的大小和取向来计算植入物相对于电磁体的位置 场，以及电磁铁的位置和方向。 定位器可用于将患者和电磁体的相对位置提供给处理器。 可以提供显示器来显示植入物在患者中的位置的表示，其也可以叠加在患者的术前图像上。

公开(公告)号：US20070016010A1

公开(公告)日：2007-01-18

申请号：US11389554

申请日：2006-03-24

Applicant: Francis Creighton ,  Seth Burgett

Inventor： Francis Creighton ,  Seth Burgett

IPC: A61B5/05

CPC classification number: H01F7/0278 ,  A61B6/12 ,  A61B34/70 ,  A61B34/73 ,  A61B2034/732 ,  A61B2034/733

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20060145799A1

公开(公告)日：2006-07-06

申请号：US11296190

申请日：2005-12-07

Applicant: Francis Creighton

Inventor： Francis Creighton

IPC: H01F7/02

CPC classification number: H01F7/0278 ,  A61B6/12 ,  A61B34/70 ,  A61B34/73 ,  A61B2034/732 ,  A61B2034/733 ,  Y10T29/49075 ,  Y10T29/49078

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070021744A1

公开(公告)日：2007-01-25

申请号：US11483396

申请日：2006-07-07

Applicant: Francis Creighton

Inventor： Francis Creighton

IPC: A61B18/14

CPC classification number: A61B18/1492 ,  A61B2090/378

Abstract: A method for ablating tissue is provided that comprises navigating an electrophysiology catheter to the site of the ablation, applying an ablating electrode on the electrophysiology catheter to the tissue to be ablated, applying energy to the electrode to ablate the tissue adjacent the electrode, ultrasonically imaging the site of the ablation, and re-ablating the tissue if the ultrasound imaging does not show a satisfactory ablation. Another embodiment of a method for ablation is provided that comprises forming a line of ablation by applying energy to an electrode to ablate the tissue adjacent the electrode, and ultrasonically imaging the line of ablation to locate points on the line that do not show satisfactory ablation. For points of unsatisfactory ablation, the method provides for navigating an electrophysiology catheter to at least one point on the line that does not show satisfactory ablation, and ablating the tissue at the point.

Abstract translation: 提供了一种用于消融组织的方法，其包括将电生理导管导向消融部位，将电生理导管上的消融电极施加到要消融的组织，向电极施加能量以消除邻近电极的组织，超声成像 消融的部位，如果超声成像没有显示令人满意的消融，则重新烧蚀组织。 提供了一种用于消融的方法的另一实施例，其包括通过向电极施加能量以消融邻近所述电极的组织来形成消融线，以及超声波成像所述消融线以定位所述线上未显示令人满意的消融的点。 对于不令人满意的消融点，该方法提供将电生理学导管导航到线路上至少一个点，其不显示令人满意的消融，并且在该点消融组织。

公开(公告)号：US20050119687A1

公开(公告)日：2005-06-02

申请号：US10936207

申请日：2004-09-08

Applicant: Ralph Dacey ,  Bevil Hogg ,  Francis Creighton ,  Peter Werp ,  Rogers Ritter

Inventor： Ralph Dacey ,  Bevil Hogg ,  Francis Creighton ,  Peter Werp ,  Rogers Ritter

IPC: A61B17/12 ,  A61M29/00

CPC classification number: A61B17/12163 ,  A61B17/12022 ,  A61B17/12113 ,  A61B17/12145 ,  A61B17/1215 ,  A61B17/1219 ,  A61B2017/00876

Abstract: Embolic devices and materials include an expansible polymer, and magnetically responsive material that allow the embolic devices and materials to be guided into, and held within, vascular defects, while the expansible polymer expands. In some embodiments, the expansion of the expansible polymer reduces the density of the magnetic material, so that subsequent magnetic surgery and magnetic imaging procedures can still employed.

Abstract translation: 栓塞装置和材料包括可膨胀聚合物和磁性响应材料，其允许栓塞装置和材料被导入血管缺陷并保持在血管缺陷中，同时可膨胀聚合物膨胀。 在一些实施方案中，可膨胀聚合物的膨胀降低了磁性材料的密度，使得仍然可以采用随后的磁性手术和磁性成像程序。