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    • 1. 发明申请
    • SYSTEM AND METHOD FOR ELECTROMAGNET COIL CONSTRUCTION
    • 电磁线圈结构的系统与方法
    • WO2016090453A1
    • 2016-06-16
    • PCT/CA2014/000873
    • 2014-12-09
    • SYNAPTIVE MEDICAL (BARBADOS) INC.BINDSEIL, GeronHARRIS, Chad Tyler
    • BINDSEIL, GeronHARRIS, Chad Tyler
    • G01R33/381G01R33/3875H01F41/04
    • G01R33/381G01R33/0052G01R33/385G01R33/3854G01R33/3875H01F41/04
    • A method of manufacturing electromagnet coils for use in a magnetic resonance imaging (MRI) system is provided. The electromagnet coils are located in a non-homogeneous external magnetic field. The method comprises forming a coil representation of a coil surface for the electromagnet coils; setting limits for performance metrics for the electromagnet coils including a magnetic field-shape metric and at least one of an external torque metric and an external force metric, the external torque metric and the external force metric based, respectively, at least in part on a torque and a force exerted on the electromagnet coil by the non-homogeneous external magnetic field; forming a performance functional, based on the coil representation and the performance metrics, for generating a current density pattern over the coil surface; optimizing the performance functional and generating a current density pattern based on the optimized performance functional; and obtaining coil windings.
    • 提供一种制造用于磁共振成像(MRI)系统的电磁线圈的方法。 电磁线圈位于非均匀的外部磁场中。 该方法包括形成用于电磁线圈的线圈表面的线圈表示; 设置包括磁场形状度量的电磁线圈的性能指标的限制,以及外部扭矩度量和外力度量中的至少一种,外部扭矩度量和外力度量分别至少部分地基于 扭矩和由非均匀外部磁场施加在电磁线圈上的力; 基于线圈表示和性能度量形成用于在线圈表面上产生电流密度模式的性能功能; 基于优化的性能功能优化性能功能并产生电流密度模式; 并获得线圈绕组。
    • 7. 发明申请
    • MAGNETIC RESONANCE TOMOGRAPH
    • 磁断层扫描
    • WO99055229A1
    • 1999-11-04
    • PCT/EP1999/002713
    • 1999-04-22
    • A61B5/055A61B17/34A61B90/17G01R33/28G01R33/381
    • G01R33/381A61B5/055A61B90/17A61B2017/3405
    • The invention relates to a magnetic resonance tomograph without access to the measurement field during a measurement, comprising a continuous channel for inserting from one side a stretcher for use by female patients lying in a prone position during a magnetic resonance mammography. Said tomograph further comprises a manipulator by means of which the instruments for the diagnosis and surgical treatment of the breasts can be introduced into the channel from its other side parallel to the longitudinal axis of the channel, positioned in relation to the position of the breast and actuated in situ in the isocentre of the magnetic resonance tomograph in or on the breasts. The manipulator comprises a support arm which has a receiving recess in which the different instruments used for the individual treatment steps can be actuated or mounted or exchanged from the proximal end. The support arm with its receiving recess can be freely positioned inside the channel in two windows of any vertical x/y planes which cover the anatomical position of the breasts. The receiving recess can be pivoted horizontally and vertically about an invariant point situated outside the receiving recess and the tip at the distal end of the manipulator.
    • 一种磁共振断层摄影MRT而不与用于女性患者在MR乳房X射线摄影时的俯卧位,用一个操纵器的患者支撑单方面插入的连续通道在测量期间获得的测量场,借助于该工具用于从所述另一侧上的诊断和治疗乳房 通道来回收回到平行于其纵向轴线,定位在乳房的位置并且另外在MRT的等中心或在乳房上的现场可操作该管道。 操纵器包括具有在其远端的接收外壳,其中或其中任选的可操作各个处理步骤中的各种仪器以及插入和从近端可互换的支撑臂。 所述支撑臂连接到所述导管内的容纳壳体中的任何垂直的x / y平面中,它们覆盖的解剖位置的妈妈的两个窗口,自由地定位,其中,接收壳体是水平和垂直方向可绕位于所述插座壳体的外部和一个不变点 尖端在位于操纵器的远端。