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1. 发明申请

WO2016090453A1 SYSTEM AND METHOD FOR ELECTROMAGNET COIL CONSTRUCTION 审中-公开
标题翻译：电磁线圈结构的系统与方法
公开(公告)号：WO2016090453A1
公开(公告)日：2016-06-16
申请号：PCT/CA2014/000873
申请日：2014-12-09
申请人： SYNAPTIVE MEDICAL (BARBADOS) INC. , BINDSEIL, Geron , HARRIS, Chad Tyler
发明人： BINDSEIL, Geron , HARRIS, Chad Tyler
IPC分类号： G01R33/381 , G01R33/3875 , H01F41/04
CPC分类号： G01R33/381 , G01R33/0052 , G01R33/385 , G01R33/3854 , G01R33/3875 , H01F41/04
摘要： 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.
摘要翻译：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。

2. 发明申请

WO2016090454A1 SYSTEM AND METHOD FOR ELECTROMAGNET COIL CONSTRUCTION AND OPERATION 审中-公开
标题翻译：用于电磁线圈结构和操作的系统和方法
公开(公告)号：WO2016090454A1
公开(公告)日：2016-06-16
申请号：PCT/CA2014/000874
申请日：2014-12-09
申请人： SYNAPTIVE MEDICAL (BARBADOS) INC. , BINDSEIL, Geron , HARRIS, Chad Tyler , HANDLER, William , CHRONIK, Blaine
发明人： BINDSEIL, Geron , HARRIS, Chad Tyler , HANDLER, William , CHRONIK, Blaine
IPC分类号： G01R33/28 , G01R33/381 , H01F41/04
CPC分类号： H01F41/04 , G01R33/385 , G01R33/3854
摘要： A method of manufacturing electromagnet coils for use in a magnetic resonance imaging (MRI) system is provided. The method comprises forming a coil representation of a coil surface for the electromagnet coils; setting a plurality of performance metric requirements for a plurality of performance metrics for the electromagnet coils, the plurality of performance metrics including a magnetic field-shape metric and an eddy-field metric; forming a performance functional, based on the coil representation and the plurality of performance metrics, for generating a current density pattern over the coil surface; optimizing the performance functional based on the plurality of performance metric requirements; generating a current density pattern over the coil surface based on the minimized performance functional; and obtaining coil windings from the current density pattern.
摘要翻译：提供了一种制造用于磁共振成像（MRI）系统的电磁线圈的方法。该方法包括形成用于电磁线圈的线圈表面的线圈表示; 为所述电磁体线圈的多个性能度量设置多个性能度量要求，所述多个性能度量包括磁场形状度量和涡流场度量; 基于所述线圈表示和所述多个性能度量，形成表现功能，用于在所述线圈表面上产生电流密度图案; 基于所述多个性能度量要求来优化所述性能功能; 基于最小化的性能函数在线圈表面上生成电流密度模式; 并从电流密度模式获得线圈绕组。

3. 发明申请

WO2018078428A1 SYSTEM AND METHOD FOR REDUCING PERIPHERAL NERVE STIMULATION AT HIGHER GRADIENT AMPLITUDES AND FASTER GRADIENT SLEW RATES IN MAGNETIC RESONANCE IMAGING 审中-公开
标题翻译：用于减少磁共振成像中更高梯度的外周神经刺激和更快的梯度速率的系统和方法
公开(公告)号：WO2018078428A1
公开(公告)日：2018-05-03
申请号：PCT/IB2016/056565
申请日：2016-10-31
申请人： SYNAPTIVE MEDICAL (BARBADOS) INC.
发明人： HARRIS, Chad , BINDSEIL, Geron , HANDLER, William
IPC分类号： G01N27/02 , G01R33/46 , G01R33/465 , G01V3/00 , G01V3/18 , G01R33/34 , G01V1/00 , G01V3/38 , G01V11/00
摘要： Described here are systems and methods for imaging a subject with a magnetic resonance imaging ("MRI") system using magnetic field gradients generated by one or more gradient coils operating with gradient coil settings (e.g., gradient amplitudes, gradient slew rates) above a threshold at which peripheral nerve stimulation ("PNS") is likely to be induced in the subject. A dielectric assembly is positioned adjacent a skin surface of the subject such that the dielectric assembly attenuates the local electric fields induced by the magnetic field gradients, which would be likely to induce PNS when the dielectric assembly is not arranged adjacent the skin surface of the subject. As a result of the dielectric assembly placed adjacent the skin surface of the subject, the gradient coil settings can be increased above the threshold without inducing PNS in the subject.
摘要翻译：这里描述的是用磁共振成像（“MRI”）系统使用由一个或多个梯度线圈产生的磁场梯度对对象进行成像的系统和方法，所述梯度线圈以梯度线圈设置（例如，梯度振幅，梯度转换率）高于可能在受试者中诱发周围神经刺激（“PNS”）的阈值。电介质组件定位在对象的皮肤表面附近，使得电介质组件衰减由磁场梯度引起的局部电场，当电介质组件未被布置为邻近受试者的皮肤表面时，这将很可能诱发PNS 。由于电介质组件放置在受试者的皮肤表面附近，所以梯度线圈设置可以增加到阈值以上而不在受试者中诱发PNS。

4. 发明公开

EP3230757A1 SYSTEM AND METHOD FOR ELECTROMAGNET COIL CONSTRUCTION 审中-公开
标题翻译：用于电磁线圈结构的系统和方法
公开(公告)号：EP3230757A1
公开(公告)日：2017-10-18
申请号：EP14908046.7
申请日：2014-12-09
申请人： Synaptive Medical (Barbados) Inc.
发明人： BINDSEIL, Geron , HARRIS, Chad Tyler
IPC分类号： G01R33/381 , G01R33/3875 , H01F41/04
CPC分类号： G01R33/381 , G01R33/0052 , G01R33/385 , G01R33/3854 , G01R33/3875 , H01F41/04
摘要： 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.
摘要翻译：提供一种制造用于磁共振成像（MRI）系统的电磁线圈的方法。电磁线圈位于不均匀的外部磁场中。该方法包括形成用于电磁线圈的线圈表面的线圈表示; 对包括磁场形状度量以及外部扭矩度量和外部力度量度中的至少一个的电磁线圈的性能度量设置限制，外部扭矩度量和外部力度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; 基于所述线圈表示和所述性能度量，形成表现功能，用于在所述线圈表面上产生电流密度图案; 优化性能功能并基于优化的性能功能生成电流密度模式; 并获得线圈绕组。

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