公开(公告)号：US20180259603A1

公开(公告)日：2018-09-13

申请号：US15762217

申请日：2016-09-13

申请人： KONINKLIJKE PHILIPS N.V.

发明人： CHRISTOPH LEUSSLER ,  CHRISTIAN FINDEKLEE

IPC分类号： G01R33/3415 ,  G01R33/34 ,  G01R33/345 ,  G01R33/48 ,  G01R33/565 ,  A61N5/10

CPC分类号： G01R33/3415 ,  A61N5/1049 ,  A61N7/02 ,  A61N2005/1055 ,  A61N2005/1087 ,  G01R33/34007 ,  G01R33/3456 ,  G01R33/481 ,  G01R33/5659

摘要： The radio frequency (RF) antenna assembly has sets of antenna conductors that leave an opening between the sets. A radiotherapy beam path may pass through the opening so that the antenna conductors are at most minimally exposed to the radiation. Each set of antenna conductors has a surface conductor loop and a transverse conductor loop. The surface conductor loop is arranged on cylindrical surface and generates an RF field mostly in its axial range. The transverse conductor loop extends radially and generates an RF field in the axial range of the opening. In this way a homogeneous RF field within the RF antenna assembly.

公开(公告)号：US09841484B2

公开(公告)日：2017-12-12

申请号：US13931382

申请日：2013-06-28

申请人： Quantum Valley Investment Fund LP

发明人： Hamidreza Mohebbi ,  David G. Cory

IPC分类号： G01R33/3415 ,  G01R33/60 ,  G01R33/345 ,  G01R33/34

CPC分类号： G01R33/60 ,  G01R33/34023 ,  G01R33/3415 ,  G01R33/3456

摘要： In some aspects, a resonator device for spin resonance applications is described. In some examples, the resonator device includes a substrate, terminals, and resonators. The terminals include a first terminal having first terminal segments disposed on a substrate surface, and a second terminal having second terminal segments disposed on the substrate surface opposite the first terminal segments. The resonators include conductors disposed on the substrate surface between the first and second terminals. Each conductor is disposed between one of the first terminal segments and a respective, opposite one of the second terminal segments.

公开(公告)号：US09823319B2

公开(公告)日：2017-11-21

申请号：US14266602

申请日：2014-04-30

申请人： Hyoung Suk Yoo

发明人： Hyoung Suk Yoo

IPC分类号： G01V3/00 ,  G01R33/3415 ,  G01R33/34 ,  G01R33/345

CPC分类号： G01R33/3415 ,  G01R33/34007 ,  G01R33/3456

摘要： The present disclosure relates to a radio frequency resonator and a magnetic resonance imaging apparatus comprising the same. A radio frequency resonator for a magnetic resonance imaging apparatus in accordance with the present disclosure comprises: a microstrip substrate; a conductive pattern portion for resonance that is formed on one surface of the microstrip substrate and increases an intensity of a magnetic field which is generated by resonating an RF signal; and a ground conductive board that is formed on the other surface of the microstrip substrate. According to the present disclosure, there is provided a radio frequency resonator for a magnetic resonance imaging apparatus capable of generating an intense magnetic field.

公开(公告)号：US20160022146A1

公开(公告)日：2016-01-28

申请号：US14777300

申请日：2014-03-14

申请人： Cameron PIRON ,  Michael WOOD ,  Murugathas YUWARAJ ,  Alex PANTHER ,  Nishantan MUGARATNAM ,  William LAU ,  Monroe M. THOMAS ,  Gal SELA ,  Joshua RICHMOND ,  Wes HODGES ,  Simon ALEXANDER ,  David GALLOP

发明人： Cameron Piron ,  Michael Wood ,  Murugathas Yuwaraj ,  Alex Panther ,  Nishanthan Shanmugaratnam ,  William Lau ,  Monroe M. Thomas ,  Gal Sela ,  Joshua Richmond ,  Wes Hodges ,  Simon Alexander ,  David Gallop

IPC分类号： A61B5/00 ,  G01R33/34 ,  A61B19/00 ,  A61B5/055 ,  A61B17/34

CPC分类号： A61B5/0035 ,  A61B5/0051 ,  A61B5/0059 ,  A61B5/055 ,  A61B5/6847 ,  A61B5/6865 ,  A61B8/12 ,  A61B8/4245 ,  A61B8/4254 ,  A61B8/445 ,  A61B8/4483 ,  A61B8/483 ,  A61B17/3423 ,  A61B90/39 ,  A61B2017/3454 ,  A61B2034/2055 ,  A61B2090/3735 ,  A61B2090/374 ,  A61B2090/3762 ,  A61B2090/3782 ,  A61B2560/0443 ,  A61B2562/04 ,  A61B2562/247 ,  G01R33/34084 ,  G01R33/3456

摘要： Insertable imaging devices, and methods of use thereof in minimally invasive medical procedures, are described. In some embodiments, insertable imaging devices are described that can be introduced and removed from an access port without disturbing or risking damage to internal tissue. In some embodiments, imaging devices are integrated into an access port, thereby allowing imaging of internal tissues within the vicinity of the access port, while, for example, enabling manipulation of surgical tools in the surgical field of interest. In other embodiments, imaging devices are integrated into an imaging sleeve that is insertable into an access port. Several example embodiments described herein provide imaging devices for performing imaging within an access port, where the imaging may be based one or more imaging modalities that may include, but are not limited to, magnetic resonance imaging, ultrasound, optical imaging such as hyperspectral imaging and optical coherence tomography, and electrical conductive measurements.

摘要翻译： 描述可插入成像装置及其在微创医疗程序中的使用方法。 在一些实施例中，描述了可以从进入端口引入和移除可插入的成像装置，而不会对内部组织造成损害或风险。 在一些实施例中，成像装置被集成到访问端口中，从而允许对进入端口附近的内部组织进行成像，而例如能够在感兴趣的手术领域中操纵外科手术工具。 在其他实施例中，成像装置被集成到可插入进入端口中的成像套筒中。 本文描述的几个示例性实施例提供用于在接入端口内执行成像的成像设备，其中成像可以基于一个或多个成像模态，其可以包括但不限于磁共振成像，超声波，诸如高光谱成像的光学成像，以及 光学相干断层扫描和导电测量。

公开(公告)号：US08380266B2

公开(公告)日：2013-02-19

申请号：US13124206

申请日：2009-10-15

申请人： J. Thomas Vaughan ,  Jinfeng Tian

发明人： J. Thomas Vaughan ,  Jinfeng Tian

IPC分类号： H01B12/00 ,  H01F6/00

CPC分类号： A61B5/055 ,  G01R33/34046 ,  G01R33/3453 ,  G01R33/3456 ,  G01R33/365 ,  G01R33/60

摘要： An RF coil adjacent an imaging region includes a plurality of conducting coil elements, with each conducting coil element including a proximal portion and a distal portion. The RF coil also includes a capacitance between the distal portions of the at least two conducting coil elements. A mutual coupling inductance between at least two conducting coil elements of the plurality of conducting coil elements is substantially cancelled by the capacitance between the distal portions of the at least two conducting coil elements.

摘要翻译： 与成像区域相邻的RF线圈包括多个导电线圈元件，每个导电线圈元件包括近端部分和远端部分。 RF线圈还包括在至少两个导电线圈元件的远端部分之间的电容。 多个导电线圈元件的至少两个导电线圈元件之间的互耦合电感基本上被至少两个导电线圈元件的远端部分之间的电容抵消。

公开(公告)号：US08358131B2

公开(公告)日：2013-01-22

申请号：US12718271

申请日：2010-03-05

申请人： Razvan Lazar ,  Juergen Nistler

发明人： Razvan Lazar ,  Juergen Nistler

IPC分类号： G01V3/30 ,  G01R33/32 ,  A61B6/00

CPC分类号： G01R33/3628 ,  G01R33/3415 ,  G01R33/3456

摘要： The efficiency and the field structure of an antenna arrangement for a magnetic resonance tomography apparatus are improved by at least one impedance transformation circuit connected with the antenna.

摘要翻译： 用于磁共振断层摄影装置的天线装置的效率和场结构由与天线连接的至少一个阻抗变换电路改进。

公开(公告)号：US07514926B2

公开(公告)日：2009-04-07

申请号：US11599177

申请日：2006-11-14

申请人： Gregor Adriany ,  Pierre-Francois Van de Moortele ,  Johannes Ritter ,  William Voje ,  J. Thomas Vaughan ,  Kamil Ugurbil

发明人： Gregor Adriany ,  Pierre-Francois Van de Moortele ,  Johannes Ritter ,  William Voje ,  J. Thomas Vaughan ,  Kamil Ugurbil

IPC分类号： G01V3/00

CPC分类号： G01R33/34046 ,  G01R33/34084 ,  G01R33/3415 ,  G01R33/3456

摘要： This document discusses, among other things, a system and method for a coil having a plurality of resonant elements and an adjustable frame. A position of at least one resonant element can be adjusted relative to at least one other resonant element. A variable impedance is coupled to adjacent resonant elements and the impedance varies as a function of a separation distance. Cables are coupled to each resonant element and are gathered at a junction in a particular manner.

摘要翻译： 本文件尤其涉及具有多个谐振元件和可调节框架的线圈的系统和方法。 可以相对于至少一个其它谐振元件调节至少一个谐振元件的位置。 可变阻抗耦合到相邻的谐振元件，并且阻抗作为分离距离的函数而变化。 电缆耦合到每个谐振元件并以特定的方式聚集在结点处。

公开(公告)号：US09599685B2

公开(公告)日：2017-03-21

申请号：US13877702

申请日：2011-10-06

申请人： Hideta Habara ,  Yoshitaka Bito ,  Hisaaki Ochi ,  Yoshihisa Soutome ,  Masayoshi Dohata ,  Tetsuhiko Takahashi ,  Hiroyuki Takeuchi

发明人： Hideta Habara ,  Yoshitaka Bito ,  Hisaaki Ochi ,  Yoshihisa Soutome ,  Masayoshi Dohata ,  Tetsuhiko Takahashi ,  Hiroyuki Takeuchi

IPC分类号： G01R33/34 ,  G01R33/345 ,  H01Q9/06 ,  H01Q21/20 ,  G01R33/28 ,  G01R33/36 ,  G01R33/422

CPC分类号： G01R33/34092 ,  G01R33/288 ,  G01R33/34046 ,  G01R33/3456 ,  G01R33/3657 ,  G01R33/422 ,  H01Q9/065 ,  H01Q21/20

摘要： There is provided a technique for suppressing increase of SAR without sacrificing sensitivity in RF coils used in MRI apparatuses. The present invention provides an antenna device comprising a sheet-shaped conductor and a ribbon-shaped conductor disposed on the subject side with respect to the sheet-shaped conductor with a predetermined distance from the sheet-shaped conductor. The ribbon-shaped conductor has a meandering shape, and is adjusted so as to resonate at transmission and reception frequencies, and it is constituted so that distance to the sheet-shaped conductor becomes smaller at both end part thereof along the static magnetic field direction compared with the distance to the sheet-shaped conductor at the center thereof. Moreover, the ribbon-shaped conductor is constituted so as to have a smaller width, as the distance to the sheet-shaped conductor becomes smaller.

公开(公告)号：US09057767B2

公开(公告)日：2015-06-16

申请号：US13465864

申请日：2012-05-07

申请人： J. Rock Hadley ,  Dennis L. Parker ,  Glen R. Morrell

发明人： J. Rock Hadley ,  Dennis L. Parker ,  Glen R. Morrell

IPC分类号： G01V3/00 ,  G01R33/345 ,  G01R33/34 ,  G01R33/3415

CPC分类号： G01R33/3456 ,  G01R33/34 ,  G01R33/34076 ,  G01R33/3415

摘要： Systems, devices and methods provide an RF coil which produces a field having linear phase variation across an imaging volume. In one embodiment, a coil comprises multiple microstrip elements configured to have an increased effective electrical length. This increase in electrical length allows for a larger linear phase shifts over the length of the microstrip element which in turn increases linear phase variation capabilities. This may be accomplished by increasing the effective dielectric properties of the microstrip element. Increasing the effective dielectric may be accomplished by utilizing distributed capacitors along the length of a microstrip element (e.g. lumped element capacitors), by altering the materials used to fabricate the microstrip element, etc. Additionally, increasing the effective dielectric may be accomplished using a combination of these means. Embodiments may further enable linear phase variation along the imaging volume at high frequencies, such as frequencies utilized for 3 T and above MRI devices.

摘要翻译： 系统，装置和方法提供RF线圈，其产生在成像体积上具有线性相位变化的场。 在一个实施例中，线圈包括配置成具有增加的有效电长度的多个微带元件。 电长度的这种增加允许在微带线元件的长度上产生较大的线性相移，这又增加了线性相位变化能力。 这可以通过增加微带元件的有效介电性能来实现。 通过改变用于制造微带线元件的材料等，通过利用沿着微带元件（例如集总元件电容器）的长度的分布式电容器来实现增加有效电介质。另外，增加有效电介质可以使用组合 的这些手段。 实施例还可以在诸如用于3T及以上MRI装置的频率的高频下沿成像体积进行线性相位变化。

公开(公告)号：US20140218032A1

公开(公告)日：2014-08-07

申请号：US13931382

申请日：2013-06-28

申请人： Quantum Valley Investment Fund LP

发明人： Hamidreza Mohebbi ,  David G. Cory

IPC分类号： G01R33/34 ,  G01R33/60

CPC分类号： G01R33/60 ,  G01R33/34023 ,  G01R33/3415 ,  G01R33/3456

摘要： In some aspects, a resonator device for spin resonance applications is described. In some examples, the resonator device includes a substrate, terminals, and resonators. The terminals include a first terminal having first terminal segments disposed on a substrate surface, and a second terminal having second terminal segments disposed on the substrate surface opposite the first terminal segments. The resonators include conductors disposed on the substrate surface between the first and second terminals. Each conductor is disposed between one of the first terminal segments and a respective, opposite one of the second terminal segments.

摘要翻译： 在一些方面，描述了用于自旋共振应用的谐振器装置。 在一些示例中，谐振器装置包括衬底，端子和谐振器。 端子包括具有设置在基板表面上的第一端子段的第一端子和具有设置在与第一端子段相对的基板表面上的第二端子段的第二端子。 谐振器包括设置在第一和第二端子之间的衬底表面上的导体。 每个导体设置在第一端子段中的一个和第二端子段之间的相应的相对的一个之间。