CN104736196A - 用于在植入式医疗装置引线中提供核磁共振成像兼容性的感应元件 - Google Patents
用于在植入式医疗装置引线中提供核磁共振成像兼容性的感应元件 Download PDFInfo
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Abstract
一种系统,包括:医疗装置引线,其包括:连接器,其位于所述引线的近端处;导体,其电连接到所述导体的近端处的所述连接器;以及至少一个电极,其耦接到所述导体的远端。所述系统还包括可固定到所述引线的近端并且包括感应元件的装置,其中该装置包括被构造为接收所述连接件并且将所述感应元件定位在所述连接件的至少一部分的周围的端口。
Description
相关申请的交叉引用
本专利申请要求下列权益:于2012年10月18日提交的美国临时申请No.61/715,627,通过引用方式将其内容并入本文中。
技术领域
本发明涉及可植入医疗装置。更具体而言,本发明涉及构造为与可植入医疗装置相关联以减少可植入医疗装置中的核磁共振成像(MRI)诱导电流的感应元件。
背景技术
MRI是一种非入侵式成像程序,其利用核磁共振技术来对患者身体内进行成像。典型地,MRI系统部署使用具有大约0.2至3特斯拉(T)之间的磁场强度的磁性线圈。在程序期间,体组织短暂地暴露于垂直于磁场的平面中的电磁能的射频(RF)脉冲。来自于这些脉冲所产生的电磁能可以用于通过测量组织中的受激发的原子核的松弛特性来使体组织成像。
在成像期间,可以通过应用在植入式医疗装置(比如起搏器或心脏除颤器)中的植入式装置引线来获得由MRI系统产生的电磁场。这种能量可以通过引线被传输至与组织接触的电极,这可能会导致在接触点处的升温。组织加热的程度典型地涉及诸如引线的长度、引线的电导率或阻抗、以及引线电极的表面积等因素。暴露于磁场也许还诱导引线上的不期望的电压。
发明内容
此处讨论的是以下感应元件的多种实施例,其中,该感应元件构造为与植入式医疗装置引线相关联以使植入式医疗装置引线是核磁共振条件的以及使多个植入式医疗装置引线与多个这种感应元件相关联。
在示例1中,系统包括:医疗装置引线,其包括:连接器,其位于所述引线的近端处;导体,其电连接到所述导体的近端处的所述连接器;以及至少一个电极,其耦接到所述导体的远端。所述系统还包括可固定到所述引线的近端并且包括感应元件的装置。该装置包括被构造为接收所述连接件并且将所述感应元件定位在所述连接件的至少一部分的周围的端口。
在示例2中,根据示例1的系统,其中所述装置包括被构造为覆盖所述引线的近端的引线帽。
在示例3中,根据示例2的系统,其中,所述引线帽包括连接件块,所述连接件块构造为使所述引线帽与在所述引线上的连接件电耦接以使所述引线电终止。
在示例4中,根据示例1-3任一项的系统,其中所述装置包括引线适配器。
在示例5中,根据示例4的系统,其中,所述引线适配器还包括引线适配器连接件,其构造为与所述引线上的连接件电耦接,并且其中所述引线适配器构造为将所述引线电且机械地连接到植入式脉冲发生器。
在示例6中,根据示例4或示例5的系统,其中,所述引线适配器包括连接件块,其构造为将所述引线适配器与所述引线上的连接件电耦接。
在示例7中,根据示例1-6任一项的系统,其中,所述感应元件包括线圈,并且其中所述线圈的缠绕方向与所述导体的缠绕方向相同。
在示例8中,根据示例1-7任一项的系统,其中,所述导体限定延伸通过所述引线的内腔,并且其中所述系统还包括感应内腔线圈,所述感应内腔线圈可定位在所述内腔内接近所述导体的远端。
在示例9中,根据示例1-8任一项的系统,其中,所述感应元件包括缠绕为多个线圈层的一根或多根丝线,其中,所述一根或多根丝线的第一线圈层在第一缠绕方向上缠绕,与所述第一缠绕同轴的所述一根或多根丝线的第二线圈层在与所述第一缠绕方向相反的第二缠绕方向上缠绕,与所述第一缠绕和第二缠绕同轴的所述一根或多根丝线的第三线圈层在所述第一缠绕方向上缠绕。
在示例10中,一种用于将非磁共振条件引线转化为核磁共振成像条件安全引线的装置,所述装置包括:绝缘壳体,其包括端口,所述端口构造为接收所述非磁共振条件引线的连接件。所述装置还包括感应元件,其设置在所述端口的一部分的周围并且定位在所述壳体中,使得当所述连接件被接收在所述端口中时所述感应元件从所述非磁共振条件引线环绕所述连接件的至少一部分。
在示例11中,根据示例10的装置,其中,所述装置构造为用于覆盖所述非磁共振条件引线的近端的引线帽。
在示例12中,根据示例10或示例11的装置,还包括:连接件块,其构造为使所述装置与所述引线上的连接件电耦接以使得所述连接件块使所述非磁共振条件引线电终止。
在示例13中,根据示例10-12任一项的装置,所述装置构造为引线适配器,并且其中所述引线适配器构造为将所述非磁共振条件引线电且机械地连接到植入式脉冲发生器,并且其中装置还包括:引线适配器连接件,其构造为与所述非磁共振条件引线的连接件电耦接,
在示例14中,根据示例13的装置,还包括:连接件块,其构造为将具有连接器块的装置与所述非磁共振条件引线电耦接。
在示例15中,根据示例10-14任一项的装置,其中,所述感应元件包括线圈,并且所述线圈的缠绕方向与所述非磁共振条件引线中的导体的缠绕方向相同。
在示例16中,根据示例10-15任一项的装置,其中,所述感应元件包括缠绕为多个线圈层的一根或多根丝线,其中,所述一根或多根丝线的第一线圈层在第一缠绕方向上缠绕,与所述第一缠绕同轴的所述一根或多根丝线的第二线圈层在与所述第一缠绕方向相反的第二缠绕方向上缠绕,与所述第一缠绕和第二缠绕同轴的所述一根或多根丝线的第三线圈层在所述第一缠绕方向上缠绕。
在示例17中,引线组件,包括:非磁共振条件医疗装置引线,其包括:在所述引线的近端处的连接件;电连接到在所述导体的近端处的连接件的导体;以及耦接到所述导体的远端的至少一个电极。所述引线组件还包括感应元件,其固定到所述引线的近端并且包括线圈。所述感应元件包括接收所述连接件并且将所述线圈定位在所述连接件的至少一部分的周围的端口。
在示例18中,根据示例17的引线组件,其中,所述装置包括引线帽,其覆盖所述非磁共振条件医疗装置引线的近端。
在示例19中,根据示例17的引线组件,其中,所述装置包括引线适配器,并且其中所述引线适配器还包括与所述非磁共振条件医疗装置引线电耦接的引线适配器连接件,并且其中所述引线适配器构造为将所述电耦接的引线电且机械地连接到植入式脉冲发生器。
在示例20中,根据示例17-19任一项的引线组件,其中,所述感应元件包括线圈,并且其中所述线圈的缠绕方向与所述导体的缠绕方向相同。
虽然多个实施例被描述了,然而通过以下显示以及描述本发明示例性实施例的详细描述,本发明的其他实施例对本领域技术人员而言将变得显而易见。相应地,附图和详细描述被视为本质上是示例性的而非限制性的。
附图说明
图1是示出了用于在植入式医疗装置引线中提供核磁共振成像(MRI)兼容性的感应元件的多种实施例的系统的示意性视图;
图2是包括感应元件的引线帽的实施例的示意图。
图3是包括感应元件的引线适配器的实施例的示意图。
图4是示出可插入在引线的内腔中的感应线圈的实施例的引线的近端的视图。
图5是根据本公开实施例的高电感线圈的实施例的透视图。
虽然本发明可服从多种实施例及可选形式,但特定实施例经由附图中的示例已经被显示了并且在以下被详细描述。然而,目的并非将本发明限制到所描述的具体实施例。相反地,本发明旨在覆盖落入由所附权利要求限定的本发明的保护范围的所有修改、等同体以及可选方案。
具体实施方式
图1是包括植入式医疗装置(IMD)102的系统100的示意性视图。如所示出的,IMD102设置在核磁共振成像(MRI)系统104附近。IMD102包括脉冲发生器106以及部署在患者心脏H中的一个或多个引线110。为了说明的目的,图1示出了被称为110a、110b和110c的三个引线,其被植入在心脏H的各个腔室中。引线110a为被弃引线,引线110b和110c为耦接到脉冲发生器106的活跃引线。
脉冲发生器106典型地被皮下植入在患者胸腔或腹部中的植入位置或囊袋内。如本领域公知的或以后所发展的,脉冲发生器106可以是用于将电治疗刺激递送至患者的任意植入式医疗装置。在多种实施例中,脉冲发生器106为起搏器、植入式心脏除颤器,和/或包括起搏能力和心脏除颤能力。任意超出的引线长度,即超过需要从脉冲发生器106的位置达至期望的心脏内植入部位的长度,总体上在靠近脉冲发生器106的皮下囊袋中将其卷绕起来。
引线110a-110c中的每个均包括远端112和近端114(为了说明方便仅显示在引线110c上)。引线110a-110c中的每个均包括在近端114处的连接件116。导体118延伸通过引线110a-110c中的每个的引线本体,并且耦接到在近端114处的连接件116以及在远端112处的一个或多个电极120。为了说明方便,连接件116、导体118以及电极120仅被标记在引线110c上,但引线110a和引线110b可以包括相似地被构造和被定位的元件。应该注意的是,虽然一个导体118被示出了,但一个以上的导体可以被设置为在每个引线本体内延伸。
在一些实施例中,导体118由形成引线本体的外部绝缘层来覆盖。在一些实施例中,导体118限定从引线110(比如引线110c)的近端114通过引线110延伸至引线110的远端112的导体内腔132。
连接件116将引线110a-110c中的每个耦接到脉冲发生器106以通过导体118将引线110b、110c上的一个或多个电极120电连接到脉冲发生器106。如所显示的,引线110a的连接件116构造为连接到脉冲发生器106,但是是断开的。并未连接到脉冲发生器106并且后续被留在心脏H中的引线(比如引线110a)被称为“被弃引线”。
如图1所示,引线110b和110c操作为传送心脏H与脉冲发生器106之间的电信号以及刺激。例如,在所示的实施例中,引线110a被植入在右心房中,引线110b被植入在左心室中以及引线110c被植入在右心室中。如所显示的,引线110a-110c经由形成在左锁骨下静脉的壁中的血管进入位点进入血管系统,并且延伸通过头臂静脉和上腔静脉。在其他实施例中,引线110a-110c可以经由右锁骨下静脉、左腋静脉、左颈外静脉、颈内静脉或左头臂静脉而进入血管系统。由脉冲发生器106传送的电信号和刺激通过导体118被携带至在引线110b、110c的远端处的电极120。
在MRI环境中,如图1所示的,由MRI系统104产生的电磁辐射可以由引线110a-110c的每个引线的导体118获得,而无关乎引线110a-110c是否连接到脉冲发生器106。电磁能经由引线110a-110c被传送到与目标组织接触的电极120,这也许会导致接触点处的升温。
此处被详细描述的装置包括感应元件(比如感应线圈)并且构造为与非磁共振条件引线(non-MR conditional lead)相关联以将引线转换到MR条件引线中。在具有指定使用条件的指定核磁共振成像(MRI)环境中,MR条件装置没有展示出公知的危险。在一些实施例中,用于将非MR条件引线转换到MR条件引线中的装置可以包括例如引线帽140,其包括固定到引线的近端114的感应元件,如所显示的附接到引线110a的感应元件。根据本公开的引线帽140的实施例相对图2在以下进行描述。用于将非MR条件引线转换到MR条件引线的第二示例装置可以包括引线适配器142,其包括固定到引线的近端114的感应元件,如所显示的耦接到引线110b的近端的感应元件。根据本公开的引线适配器142的实施例在此处相对图3进行描述。第三示例装置可以包括感应线圈144,其被定位成靠近导体内腔132中的引线的远端112,如在引线110c的远端处所显示的。根据本公开的感应线圈144的实施例在此处相对图4进行描述。
图2是构造为耦接到在引线110a(图1)的近端114处的连接件116的引线帽140的示意性说明。引线帽140具有远端部分204和近端部分206。引线帽140包括绝缘壳体208、端口210以及感应元件212。绝缘壳体208从远端部分204延伸到近端部分206。绝缘壳体208可以包括外壁214和内壁216以及限定在内壁216内并且从壳体208的近端部分206延伸到壳体208的远端部分204的内腔218。端口210在远端部分204处为内腔218提供开口。端口210和内腔218构造为接收和保持连接件116。感应元件212可以被设置在端口210的至少一部分周围并且被定位在壳体208内以使得当连接件被接收在内腔218中时,感应元件212从非MR条件引线环绕连接件116的至少一部分。在一些实施例中,感应元件212可以为高电感线圈。
在一些实施例中,壳体208可以由聚合物形成。在一些实施例中,壳体208由聚合的生物相容材料形成。可用于壳体208的示例性材料包括、但不限于膨胀的聚四氟乙烯(ePTFE)、分层的聚四氟乙烯、聚四氟乙烯、聚对苯二甲酸乙二醇脂(PETE)、乙烯/四氟乙烯共聚物(ETFE)、氟化乙烯丙烯共聚物(FEP)、聚醚醚酮(PEEK)、聚酰胺、聚酰亚胺、对位芳纶合成纤维和聚亚安酯等。
引线帽140与引线110a的连接件116耦接以使引线110a电终止。在一些实施例中,诸如在单极导联中,引线帽140还包括连接件块226。连接件块226可以电耦接到感应元件212。连接件块226定位在壳体208内的内腔218周围以使得连接件块226可电连接到在内腔218内布置的连接件116。在一些实施例中,连接件块226通过使用固定机构比如一个或多个定位螺丝(未示出)可机械及电耦接到连接件116。因此,连接件块226操作为将感应元件212电耦接到连接件116。在其他实施例中,引线帽140可以不包括连接件块226,这会导致感应元件212并未电连接到连接件116。在这种实施例中,感应元件212“漂过”连接件116。
在示出的实施例中,感应元件212可以包括单根丝线230,其在特定的缠绕方向W(例如反时针(LH)的缠绕方向)上围绕内腔218的纵向轴线A螺旋缠绕成多匝。在一些实施例中,感应元件212可以包括两根或多根丝线(参见比如图5)。感应元件212还可以具有线圈节距,其被定义为从感应元件212的电线的匝的中心到感应元件212的电线的相邻匝的中心的长度,并且在丝线230的直径的大约一倍至两倍之间。
感应元件212的电感可以通过其几何特性被部分地确定,该几何特性包括感应元件212是否是直的或是卷绕的。对于卷绕的或缠绕的感应元件212而言,多个参数影响其电感,包括感应元件212的线圈节距、外径以及横截面积,和在感应元件212中的丝线230的数量。因此,感应元件212的尺寸和特性可以被选择为使得MRI场对引线110a的性能和响应的效果最小化。
在一些实施例中,感应元件212在与引线110a中的导体118的相同方向W上被缠绕。例如,如果导体118卷绕在反时针的缠绕方向上,则感应元件212也可以被卷绕在相同的反时针方向上。感应元件212比导体118具有更高的电感,因此通过将感应元件212耦接到导体118来增加引线110a的总电感。因此,在导体118上的MRI诱导电流的量被减少了。
在操作中,引线帽140可以放置在引线110a的近端114的上面。端口210接收引线110a的连接件116,其横贯内腔218至引线帽140的近端206直到感应元件212设置在连接件116的至少一部分的周围为止。通过利用感应元件212环绕连接件116的至少一部分,引线110a的总电感被增加了,从而减少被导体118获得以及传递的MRI诱导电流的量。因此,感应元件212防止或减少在一个或多个电极120处的温升。
图3为构造为耦接到以及覆盖在引线110b的近端114(图1)处的连接件116的引线适配器142的示意性说明。引线适配器142具有远端部分304、近端部分306以及中间部分308。引线适配器142可以包括绝缘壳体310、端口312、引线适配器连接件314以及感应元件315。绝缘壳体310从远端部分304延伸至中间部分308。绝缘壳体310包括外壁316、内壁318以及限定在内壁318内并从壳体310的近端部分322延伸到壳体310的远端部分324的内腔320。端口312在引线适配器142的远端部分304处为内腔320提供开口。端口312和内腔320构造为接收和保持引线110b上的连接件116。感应元件315可以设置在端口312的至少一部分的周围并且被定位在壳体310内以使得当连接件116被接收在内腔320中时,感应元件315从非MR条件引线环绕连接件116的至少一部分。在一些实施例中,感应元件为高电感线圈。
在一些实施例中,壳体310可以由聚合物形成。在一些实施例中,壳体310由聚合的生物相容的材料形成。可用于壳体310的示例性材料包括、但不限于膨胀的聚四氟乙烯(ePTFE)、分层的聚四氟乙烯、聚四氟乙烯、聚对苯二甲酸乙二醇脂(PETE)、乙烯/四氟乙烯共聚物(ETFE)、氟化乙烯丙烯共聚物(FEP)、聚醚醚酮(PEEK)、聚酰胺、聚酰亚胺、对位芳纶合成纤维、聚亚安酯和硅树脂等。
在一些实施例中,比如当引线适配器142与单级导联关联使用时,引线适配器142还可以包括连接块332。连接件块332可以电耦接到感应元件315。连接件块332定位在壳体310内的内腔320的周围以使得连接件块332可电连接到在内腔320内布置的连接件116。在一些实施例中,连接件块332通过使用固定机构(未示出)比如一个或多个定位螺丝而可机械及电耦接到连接件116。因此,连接件块332操作为将感应元件315电耦接到连接件116。在其他实施例中,引线适配器142可以不包括连接件块332,这会导致感应元件315并未电连接到连接件116。在这种实施例中,感应元件315“漂过”连接件116。
在示出的实施例中,感应元件315可以包括单根丝线340,其在特定的缠绕方向(例如反时针(LH)的缠绕方向)上围绕内腔320的纵向轴线螺旋缠绕成多匝。在其他实施例中,感应元件315包括两根或多根丝线(参见比如图5)。感应元件315还可以具有在丝线340的直径的大约一倍至两倍之间的线圈节距。
感应元件315的电感可以通过其几何特性被部分地确定,该几何特性包括感应元件315是否是直的或是卷绕的。对于卷绕的或缠绕的感应元件315而言,多个参数影响其电感,包括:感应元件315的线圈节距、外径以及横截面积,和在感应元件315中的丝线340的数量。因此,感应元件315的尺寸和特性可以被选择为使得MRI场对引线110b的性能和响应的效果最小化。
在一些实施例中,感应元件315可以在与引线110b中的导体118的相同方向上缠绕。例如,如果导体118在反时针的缠绕方向上卷绕,则感应元件315也可以在相同的反时针方向上卷绕。感应元件315可以构造为增加引线110b的总电感以减少作用在导体118上的MRI诱导电流的量。
在操作中,引线适配器142可以放置在引线110b的近端114的上面。端口312接收引线110b的连接件116,引线110b横贯内腔320至壳体310的近端部分322直到感应元件315设置在连接件116的至少一部分的周围为止。引线适配器连接件314随后耦接到脉冲发生器106。通过利用感应元件315环绕连接件116的至少一部分,引线110b的总电感被增加了,从而减少被导体118获得以及传递的MRI诱导电流的量。因此,感应元件315防止或减少在一个或多个电极120处的温升,并且可以防止或减少注入脉冲发生器106中的电流的量。
图4是具有被插入到连接件116的近端部分中的感应元件144的实施例的引线110c的一部分的示意性说明。如此处所讨论的,并且如图1示出的,感应元件144可以构造为横贯了延伸通过引线110c的导体118的导体内腔132。在一些实施例中,感应元件144定位在引线110c靠近一个或多个电极120的远端部分112处。感应元件144增加了导体118的电感,从而减少在引线110c的远端112处的一个或多个电极的加热。
可以通过使用插入工具(未示出)来将感应元件144引导到导体118的内腔132中并且感应元件144可以朝向引线110c靠近电极120的远端部分112移动。所使用的插入工具可以为准绳或探针。其他插入工具也可以用于将感应元件144引导通过引线110c的目的。感应元件144可以为高电感线圈并且可以包括以下电线或丝线402,该电线或丝线402缠绕成具有比导体118的内径更小的外径404的线圈。感应元件144可以用作为用于减少一个或多个电极120中的MRI场诱导的发热的微导体。可以在替代地或额外地引线帽140或引线适配器142中部署感应元件144,如分别地关于图2和图3所描述的那样。
图5是包括一根或多根丝线502的感应元件500的透视图。感应元件500是关于图2-4如此处描述的被卷绕的感应元件的可选构造。在一些实施例中,感应元件500的一根或多根丝线502缠绕成多个线圈层。例如,第一线圈层510可以在第一缠绕方向B1上缠绕,第二线圈层512可以与第一缠绕同轴并且在与第一缠绕方向相反的第二缠绕方向B2上缠绕,以及第三线圈层514可以与第一缠绕、第二缠绕同轴并且在第一缠绕方向B1上缠绕。感应元件500可以被部署为本文所描述的感应元件,其包括在引线帽140中的感应元件212(图2)、在引线适配器142中的感应元件315(图3)以及可插入到导体内腔132中的感应元件144(图4)。
在图5中,多个线圈层的每个线圈层的部分被移除了以示出诸如510和520的每个基本层。感应元件500的丝线502例如沿方向B1同径缠绕以形成具有近节距的第一线圈层510。丝线502随后在第一线圈层510上并与第一线圈层510同轴地、以相反方向在其本身上往回缠绕。第二线圈层512的节距可以大于第一线圈层512的节距,并且在相反方向上的缠绕会导致第二线圈层512形成在第一线圈层510上。丝线502随后以与第二线圈层512相反方向(即与内部的第一线圈层510相同方向)再次在其本身上往回缠绕,以在第二线圈层上形成第三线圈层514。第三线圈层514的节距可以小于第二线圈层512的节距。
在一些实施例中,感应元件500包括两根至五十根丝线502。在一些实施例中,每根丝线502的直径可以在大约0.001英寸至0.010英寸范围内(0.003至0.025厘米)。丝线可以由生物相容材料组成,包括但不限于金、银、镍钛诺、钛、铂、铱、镍-钴基合金(MP35N),或者不锈钢。每根丝线还可以包括生物相容和介电材料的绝缘层(未示出)、比如聚四氟乙烯、尼龙、聚合物、PTFE、ETFE、硅树脂、聚亚安酯、PEEK、和/或环氧树脂。绝缘层的厚度可以小于大约0.005英寸(0.01厘米)。在一些实施例中,传导组件的外径小于大约0.10英寸(0.25厘米)。
在不脱离本发明保护范围的情形下,可以对此处所讨论的实施例作出修改和添加。例如,虽然上述实施例指代特定的特征,但本发明的保护范围还包括具有特征和不包括所有描述的特征的实施例的不同组合的实施例。相应地,本发明的保护范围旨在包含所有落入本发明保护范围的替换、修改、变体、以及其所有等同体。
Claims (20)
1.一种系统,包括:
医疗装置引线,其包括:
连接器,其位于所述引线的近端处;
导体,其电连接到所述导体的近端处的所述连接器;以及
至少一个电极,其耦接到所述导体的远端;以及
可固定到所述引线的近端并且包括感应元件的装置,其中该装置包括被构造为接收所述连接件并且将所述感应元件定位在所述连接件的至少一部分的周围的端口。
2.根据权利要求1所述的系统,其中,所述装置包括被构造为覆盖所述引线的近端的引线帽。
3.根据权利要求2所述的系统,其中,所述引线帽包括连接件块,所述连接件块构造为使所述引线帽与在所述引线上的连接件电耦接以使所述引线电终止。
4.根据权利要求1所述的系统,其中,所述装置包括引线适配器。
5.根据权利要求4所述的系统,其中,所述引线适配器还包括引线适配器连接件,其构造为与所述引线上的连接件电耦接,并且其中所述引线适配器构造为将所述引线电且机械地连接到植入式脉冲发生器。
6.根据权利要求5所述的系统,其中,所述引线适配器包括连接件块,其构造为将所述引线适配器与所述引线上的连接件电耦接。
7.根据权利要求1所述的系统,其中,所述感应元件包括线圈,并且其中所述线圈的缠绕方向与所述导体的缠绕方向相同。
8.根据权利要求1所述的系统,其中,所述导体限定延伸通过所述引线的内腔,并且其中所述系统还包括感应内腔线圈,所述感应内腔线圈可定位在所述内腔内接近所述导体的远端。
9.根据权利要求1所述的系统,其中,所述感应元件包括缠绕为多个线圈层的一根或多根丝线,其中,所述一根或多根丝线的第一线圈层在第一缠绕方向上缠绕,与所述第一缠绕同轴的所述一根或多根丝线的第二线圈层在与所述第一缠绕方向相反的第二缠绕方向上缠绕,与所述第一缠绕和第二缠绕同轴的所述一根或多根丝线的第三线圈层在所述第一缠绕方向上缠绕。
10.一种用于将非磁共振条件引线转化为核磁共振成像条件安全引线的装置,所述装置包括:
绝缘壳体,其包括端口,所述端口构造为接收所述非磁共振条件引线的连接件;以及
感应元件,其设置在所述端口的一部分的周围并且定位在所述壳体中,使得当所述连接件被接收在所述端口中时所述感应元件从所述非磁共振条件引线环绕所述连接件的至少一部分。
11.根据权利要求10所述的装置,其中,所述装置构造为用于覆盖所述非磁共振条件引线的近端的引线帽。
12.根据权利要求11所述的装置,还包括:连接件块,其构造为使所述装置与所述引线上的连接件电耦接以使得所述连接件块使所述非磁共振条件引线电终止。
13.根据权利要求10所述的装置,其中,所述装置构造为引线适配器,并且还包括:
引线适配器连接件,其构造为与所述非磁共振条件引线的连接件电耦接,并且其中所述引线适配器构造为将所述非磁共振条件引线电且机械地连接到植入式脉冲发生器。
14.根据权利要求13所述的装置,还包括:
连接件块,其构造为与所述非磁共振条件引线的连接件电耦接。
15.根据权利要求10所述的装置,其中,所述感应元件包括线圈,并且所述线圈的缠绕方向与所述非磁共振条件引线中的导体的缠绕方向相同。
16.根据权利要求10所述的装置,其中,所述感应元件包括缠绕为多个线圈层的一根或多根丝线,其中,所述一根或多根丝线的第一线圈层在第一缠绕方向上缠绕,与所述第一缠绕同轴的所述一根或多根丝线的第二线圈层在与所述第一缠绕方向相反的第二缠绕方向上缠绕,与所述第一缠绕和第二缠绕同轴的所述一根或多根丝线的第三线圈层在所述第一缠绕方向上缠绕。
17.引线组件,包括:
非磁共振条件医疗装置引线,其包括:在所述引线的近端处的连接件;电连接到在所述导体的近端处的连接件的导体;以及耦接到所述导体的远端的至少一个电极;以及
感应元件,其固定到所述引线的近端并且包括线圈,其中所述感应元件包括接收所述连接件并且将所述线圈定位在所述连接件的至少一部分的周围的端口。
18.根据权利要求17所述的引线组件,其中,所述感应元件包括引线帽,其覆盖所述非磁共振条件医疗装置引线的近端。
19.根据权利要求17所述的引线组件,其中,所述感应元件包括引线适配器,并且其中所述引线适配器还包括与所述非磁共振条件医疗装置引线电耦接的引线适配器连接件,并且其中所述引线适配器构造为将所述电耦接的引线电且机械地连接到植入式脉冲发生器。
20.根据权利要求17所述的引线组件,其中,所述感应元件包括线圈,并且其中所述线圈的缠绕方向与所述导体的缠绕方向相同。
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AU2013331142A1 (en) | 2015-03-05 |
EP2908903B1 (en) | 2016-08-31 |
EP2908903A1 (en) | 2015-08-26 |
US20150182744A1 (en) | 2015-07-02 |
JP2015529152A (ja) | 2015-10-05 |
US8983623B2 (en) | 2015-03-17 |
JP6034499B2 (ja) | 2016-11-30 |
WO2014062966A1 (en) | 2014-04-24 |
US20140114383A1 (en) | 2014-04-24 |
US9504822B2 (en) | 2016-11-29 |
AU2013331142B2 (en) | 2016-07-28 |
CN104736196B (zh) | 2017-06-16 |
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