公开(公告)号：US20130116543A1

公开(公告)日：2013-05-09

申请号：US13723612

申请日：2012-12-21

Applicant: MRI Interventions, Inc.

Inventor： Kimble L. Jenkins ,  Peter Piferi ,  Kamal Vij

IPC: A61B5/06 ,  A61M29/00

CPC classification number: A61B5/062 ,  A61B5/0044 ,  A61B5/042 ,  A61B5/0422 ,  A61B5/053 ,  A61B5/055 ,  A61B5/065 ,  A61B5/415 ,  A61B5/418 ,  A61B18/02 ,  A61B18/18 ,  A61B34/10 ,  A61B34/20 ,  A61B2090/365 ,  A61B2090/374 ,  A61B2090/3954 ,  A61M5/00 ,  A61M25/01 ,  A61M25/0127 ,  A61M29/00 ,  A61M2025/0089 ,  A61M2025/0166 ,  A61M2025/0681 ,  A61M2025/09175 ,  G01R33/286 ,  G01R33/287

Abstract: An MRI-guided medical device includes an elongated sheath, an elongated dilator, and an elongated needle. The sheath has a distal end, an opposite proximal end, and a central lumen extending between the proximal and distal ends. The sheath comprises MRI-compatible material and includes a tracking member located adjacent to the sheath distal end that is visible in an MRI image. The dilator comprises MRI-compatible material and is movably disposed within the sheath lumen. A distal end of the dilator is configured to extend outwardly from the sheath distal end and dilator includes at least one tracking member that is visible in an MRI image. The needle is movably disposed within the dilator lumen and is movable between stored and operative positions relative to the dilator. An RF shield may be coaxially disposed within the elongated sheath so as to surround a portion of the sheath central lumen.

Abstract translation: MRI引导的医疗装置包括细长护套，细长扩张器和细长针头。 鞘具有远端，相对的近端和在近端和远端之间延伸的中心腔。 护套包括与MRI相容的材料，并且包括位于MRI图像中可见的护套远端附近的跟踪构件。 扩张器包括与MRI相容的材料，并且可移动地设置在鞘腔内。 扩张器的远端构造成从护套远端向外延伸，并且扩张器包括在MRI图像中可见的至少一个跟踪构件。 针可移动地设置在扩张器腔内，并且可在相对于扩张器的存储和操作位置之间移动。 RF屏蔽件可以同轴地设置在细长护套内，以便围绕护套中心腔的一部分。

公开(公告)号：US20130102883A1

公开(公告)日：2013-04-25

申请号：US13717226

申请日：2012-12-17

Applicant: MRI Interventions, Inc.

Inventor： Peter Piferi ,  Kimble L. Jenkins ,  David John Sayler

IPC: A61B5/06 ,  A61B18/00 ,  A61B5/00 ,  A61N1/05 ,  A61B5/055 ,  A61B19/00

CPC classification number: A61B5/062 ,  A61B5/004 ,  A61B5/0042 ,  A61B5/0044 ,  A61B5/055 ,  A61B5/0555 ,  A61B5/4836 ,  A61B5/4839 ,  A61B18/00 ,  A61B34/10 ,  A61B34/25 ,  A61B34/74 ,  A61B90/11 ,  A61B90/14 ,  A61B90/361 ,  A61B90/37 ,  A61B90/50 ,  A61B2017/00212 ,  A61B2017/00477 ,  A61B2017/00911 ,  A61B2017/3407 ,  A61B2017/3409 ,  A61B2034/101 ,  A61B2034/107 ,  A61B2034/252 ,  A61B2034/256 ,  A61B2090/103 ,  A61B2090/306 ,  A61B2090/3614 ,  A61B2090/373 ,  A61B2090/374 ,  A61B2090/3933 ,  A61B2090/3937 ,  A61B2090/395 ,  A61B2090/3954 ,  A61B2090/3983 ,  A61N1/0529 ,  A61N1/0534 ,  A61N1/36014 ,  A61N1/372 ,  G01R33/286 ,  G01R33/287 ,  G01R33/3415

Abstract: An MRI-guided interventional system includes a trajectory guide frame for guiding an interventional device with respect to a patient in an MRI-guided procedure and including a base, a platform, a targeting cannula, and a stabilizer mechanism. The platform is mounted on the base and includes a support table and a moving plate that is translatable relative to the support table and the base along a translational axis. The targeting cannula is mounted on the moving plate for movement therewith and includes an elongate guide bore defining a trajectory axis. The stabilizer mechanism is operable to selectively control movement between the support table and the moving plate to stabilize a position of the targeting cannula with respect to the base. The frame is operable to translate the moving plate along the translational axis relative to the base to position the trajectory axis. The translational axis is transverse to the trajectory axis.

Abstract translation: MRI引导的介入系统包括用于在MRI引导过程中引导介入装置相对于患者的轨迹引导框架，并且包括基座，平台，靶向插管和稳定器机构。 平台安装在基座上并且包括支撑台和移动板，其可相对于支撑台和基座沿平移轴线平移。 靶向套管安装在移动板上以与其一起运动并且包括限定轨迹轴线的细长导向孔。 稳定器机构可操作以选择性地控制支撑台和移动板之间的运动，以使靶向套管相对于基座的位置稳定。 该框架可操作以使移动板沿相对于基座的平移轴平移以定位轨迹轴。 平移轴线横向于轨迹轴线。