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    • 1. 发明申请
    • VERTEBRAL BODY REDUCTION INSTRUMENT AND METHODS RELATED THERETO
    • VERTEBRAL身体减少仪器及其相关方法
    • US20100274252A1
    • 2010-10-28
    • US12766481
    • 2010-04-23
    • Paul A. BottomleyShashank Sathyanarayana
    • Paul A. BottomleyShashank Sathyanarayana
    • A61B17/60
    • A61B17/708
    • Featured is a reduction instrument being configured and arranged to allow correction of vertebral translation and applying distraction across a segment in an independent fashion. Such a reduction instrument embodies one or more identical modules that are configured as needed for correcting the deformity. In more particular embodiments, each of the one or more modules has two degrees of freedom (DOF) with uncoupled orthogonal translations. Such a reduction instrument allows the reorientation of the vertebral segment as needed via uncoupled orthogonal translations. Such a reduction instrument also is usable in combination with a plurality of vertebral anchors, such vertebral anchors being any such vertebral anchors as are know to those skilled in the art (e.g., conventional spinal pedicle screw instrumentation) or hereinafter developed so as to form a spinal implant system. Also featured are treatment methods utilizing such a reduction instrument.
    • 特色是一种减少仪器,其被配置和布置成允许校正脊椎翻译并以独立方式跨越段进行牵引。 这种还原器具体现了一个或多个相同的模块,其被配置为需要校正畸形。 在更具体的实施例中,一个或多个模块中的每一个具有具有未耦合正交平移的两个自由度(DOF)。 这种减少器械允许根据需要通过非耦合的正交平移重新定向椎骨段。 这种减速器还可以与多个椎骨锚固件组合使用,这些椎骨锚固件是本领域技术人员已知的任何这样的椎骨锚固件(例如,常规的椎弓根螺钉装置)或下文开发以形成 脊柱植入系统。 还特征在于使用这种还原装置的处理方法。
    • 5. 发明授权
    • SAR dosimeter for RF power deposition in MRI and methods and systems related thereto
    • 用于MRI中RF功率沉积的SAR剂量计及与其相关的方法和系统
    • US08717021B2
    • 2014-05-06
    • US12677097
    • 2008-09-08
    • Paul A. BottomleyJohn P. Stralka
    • Paul A. BottomleyJohn P. Stralka
    • G01V3/00
    • G01R33/288G01R33/58
    • Featured is a dosimeter device that measures SAR deposited by RF power deposition during MRI of a specimen. Such a dosimeter device includes a transducer that is configured to present a load to the MRI scanner in which the transducer is located and to provide an output representative of signals induced in the transducer. The transducer also is configured so that the presented load is substantially equivalent to another load which would be presented by the specimen during MRI of the specimen. Such a transducer also is configured so as to generate an MRI signal that is sufficient to allow the MRI scanner to adjust the RF power to a value substantially equal to that of the specimen. Also featured are methods for measuring SAR deposited by RF power deposition and apparatuses or system embodying such a dosimeter device.
    • 特色是一种剂量计装置,可以在样品的MRI期间测量通过RF功率沉积沉积的SAR。 这样一种剂量计装置包括一个换能器,该换能器被配置为向换能器所在的MRI扫描器提供负载,并提供代表在换能器中感应的信号的输出。 传感器还被配置成使得所呈现的负载基本上等于在样本的MRI期间由样本呈现的另一负载。 这样的换能器也被配置为产生足以使MRI扫描器将RF功率调整到基本上等于样本的值的MRI信号。 还有一些用于测量通过RF功率沉积沉积的SAR的方法以及体现这种剂量计装置的装置或系统。
    • 6. 发明申请
    • OPTIMIZED MRI STRIP ARRAY DETECTORS AND APPARATUS, SYSTEMS AND METHODS RELATED THERETO
    • 优化的MRI条带阵列检测器及其相关的设备,系统和方法
    • US20110037468A1
    • 2011-02-17
    • US12879430
    • 2010-09-10
    • Paul A. BottomleyAnanda Kumar
    • Paul A. BottomleyAnanda Kumar
    • G01R33/44
    • G01R33/3415G01R33/3678
    • Featured is a device for NMR or MRI signals from excited nuclei as well as related apparatus, systems and methods. The device includes a strip array antenna including one or more conductor and N reactive tuning components, where N is an integer≧1 at least one of the N reactive components is electrically coupled to each of the one or more conductors as well as to ground/virtual ground. The apparent electrical length of the conductors is tuned with the reactive tuning components so it is equal to be about nλ/4, where n is an integer≧1 and λ is the wavelength of the signal to be detected. The length of the strip also is such as to be substantially in the approximate range of 1.3 times the depth of interest. The strip conductors are also combined with loop coils to form quadrature detectors.
    • 特色是用于激发核的NMR或MRI信号以及相关设备,系统和方法的设备。 该装置包括带状阵列天线,其包括一个或多个导体和N个非反应调谐组件,其中N是整数≥1,N个无功分量中的至少一个电耦合到一个或多个导体中的每一个以及接地/ 虚拟地面。 导体的表观电长度用无功调谐分量进行调谐,因此等于大约nλ/ 4,其中n是整数≧1,λ是待检测信号的波长。 条的长度也基本上在感兴趣深度的1.3倍的近似范围内。 带状导体也与环形线圈组合以形成正交检测器。