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    Endorectal probe with planar moveable MRI coil
    1.
    发明授权
    Endorectal probe with planar moveable MRI coil 失效
    具有平面可动MRI线圈的直肠内探针

    公开(公告)号：US5365928A

    公开(公告)日：1994-11-22

    申请号：US982177

    申请日：1992-11-25

    申请人： Edward J. Rhinehart ,  Michael A. Spohn

    发明人： Edward J. Rhinehart ,  Michael A. Spohn

    IPC分类号： A61B17/00 ,  A61B19/00 ,  G01R33/34 ,  A61B5/055 ,  A61M25/10

    CPC分类号： G01R33/34084 ,  A61B2017/00557 ,  A61B2090/374

    摘要： An insertable intracavity probe for use in magnetic resonance imaging of an area of interest in a relatively inaccessible region of the body is disclosed. The probe has an internal pickup coil carried at the distal end of a shaft for rectal insertion of the coil and an inflatable anti-migration cuff to hold the probe in position and prevent outward migration thereof during a procedure. The anti-migration cuff is carried on an outer sleeve which is slidably and rotatably mounted on the shaft. The coil is carried on a resilient tip structure at the distal end of the shaft which is flexible in the plane normal to the plane of the coil. Deflection of the coil assembly is controlled by a pair of control lines attached to the distal end of the tip structure. The lines may be selectively tensioned to deflect the coil in the direction of tension by a thumb wheel control at the handle of the probe.

    摘要翻译： 公开了一种用于在身体相对不可接近的区域中的感兴趣区域的磁共振成像的可插入腔内探针。 探头具有一个内部拾取线圈，该内部拾取线圈承载在轴的远端，用于直线插入线圈，以及一个可充气的反向移动箍，用于将探头保持在适当的位置，并防止在手术过程中向外移动。 防反弹袖带承载在可滑动和可旋转地安装在轴上的外套筒上。 线圈被承载在轴的远端处的弹性尖端结构，其在垂直于线圈平面的平面中是柔性的。 线圈组件的偏转由附接到尖端结构的远端的一对控制线控制。 可以选择性地张紧线以通过在探针的手柄处的拇指轮控制使线圈在张力方向上偏转。

    System and method of obtaining images and spectra of intracavity structures using 3.0 Tesla magnetic resonance systems
    7.
    发明授权
    System and method of obtaining images and spectra of intracavity structures using 3.0 Tesla magnetic resonance systems 有权
    使用3.0特斯拉磁共振系统获得腔内结构的图像和光谱的系统和方法

    公开(公告)号：US07747310B2

    公开(公告)日：2010-06-29

    申请号：US10483945

    申请日：2003-03-13

    申请人： George J. Misic ,  Edward J. Rhinehart

    发明人： George J. Misic ,  Edward J. Rhinehart

    IPC分类号： A61B5/055

    CPC分类号： G01R33/285 ,  A61B5/055 ,  G01R33/34084 ,  G01R33/3628

    摘要： An MR system features an intracavity probe and associated interface device. The probe includes a shaft, a balloon at one end thereof, and a coil loop within the balloon. The loop has two drive capacitors and a tuning capacitor, all of which in series. A junction node between the drive capacitors serves as a ground for electrically balancing the loop. Diametrically opposite the node, the tuning capacitor enables the loop to resonate at the operating frequency of the MR system. The interface allows the MR system to couple the loop to a port of the MR system during a receive cycle thereof and decouple it from the port during a transmit cycle thereof. With its balloon inserted and inflated within a cavity of a patient, the probe allows the MR system to generate images and/or spectra of the region of interest using the MR signals received by the loop.

    摘要翻译： MR系统具有腔内探针和相关接口装置。 探针包括轴，其一端处的气囊和气囊内的线圈环。 该回路具有两个串联的驱动电容器和一个调谐电容器。 驱动电容器之间的结节点用作电平衡环路的接地。 与节点完全相反，调谐电容使得环路在MR系统的工作频率下谐振。 该接口允许MR系统在其接收周期期间将环路耦合到MR系统的端口，并在其发射周期期间将其与端口分离。 通过将气球插入并充气到患者的腔内，探针允许MR系统使用循环接收的MR信号来产生感兴趣区域的图像和/或光谱。

    Prefillable syringes and injectors for use therewith
    10.
    发明授权
    Prefillable syringes and injectors for use therewith 失效
    预先使用的注射器和注射器

    公开(公告)号：US5944694A

    公开(公告)日：1999-08-31

    申请号：US748230

    申请日：1996-11-12

    申请人： Mark W. Hitchins ,  Edward J. Rhinehart ,  Robert J. Masarik

    发明人： Mark W. Hitchins ,  Edward J. Rhinehart ,  Robert J. Masarik

    IPC分类号： A61M5/145 ,  A61M37/00

    CPC分类号： A61M5/14546 ,  A61M5/14566

    摘要： The present invention provides prefillable syringes and injectors for use therewith that expand and/or facilitate a variety of medical procedures involving the injection of a liquid medium. In several embodiments, the present syringes and injectors enable the use of current syringe materials at higher pressures than previously attainable or the use of other materials not previously usable with current high pressure-syringe and injector designs. In one embodiment, a syringe comprises an elongated cylindrical main body having a first pair and a second pair of mounting flanges encompassing collectively an arcuate length equal to at least approximately 180.degree. of the circumference of the rear portion of the cylindrical main body for releasably mounting the syringe in a desired position relative to the front wall of the injector housing. Injectors for use with such syringes comprise a housing having a front wall and a retainer on the front wall which cooperates with the first and second pairs of mounting flanges of the syringe to releasably mount the syringe on the injector.

    摘要翻译： 本发明提供了可与之一起使用的可预充注射器和注射器，其扩展和/或促进涉及注射液体介质的各种医疗过程。 在几个实施例中，本发明的注射器和注射器使得能够以比先前可获得的更高的压力使用当前的注射器材料，或者使用以前不能用于当前高压注射器和注射器设计的其它材料。 在一个实施例中，注射器包括细长的圆柱形主体，其具有第一对和第二对安装凸缘，其共同包含等于圆柱形主体的后部的圆周的至少大约180度的弓形长度，用于可释放地安装 注射器相对于注射器壳体的前壁处于期望的位置。 用于这种注射器的注射器包括具有在前壁上的前壁和保持器的壳体，其与注射器的第一和第二对安装凸缘配合以将注射器可释放地安装在注射器上。