Actinide dissolution
    41.
    发明授权
    Actinide dissolution 失效
    ACTINIDE DISSOLUTION

    公开(公告)号:US5205999A

    公开(公告)日:1993-04-27

    申请号:US761060

    申请日:1991-09-18

    CPC分类号: G21F9/30 Y02E50/30

    摘要: A process for the treatment of a material which is or is suspected to contain or carry one or more actinides or compounds thereof to dissolve such actinides or compounds comprises contacting the material with an aqueous solution having a pH in the range 5.5 to 10.5 which is free of heavy metal ions and comprises ingredients which are naturally degradable to non-toxic products with or without mild physical assistance such as heat or ultra-violet radiation, said solution comprising:(a) carbonated water;(b) a conditioning agent;and (c) a complexing agent which comprises the anion of a carboxylic acid having from 2 to 6 carbon atoms.The process may be employed to separate spent nuclear fuel from its metal containment or it may be employed to decontaminate surface, e.g. concrete or soil or pipes carrying traces of actinides, or bulk materials such as soil or rubble.

    Ultrasound imaging guidewire with static central core and tip

    公开(公告)号:US07060033B2

    公开(公告)日:2006-06-13

    申请号:US10868705

    申请日:2004-06-14

    IPC分类号: A61B8/14

    CPC分类号: A61B8/12 A61B8/4461 A61M25/09

    摘要: An ultrasound imaging guidewire, that is inserted into a patient's body. The guidewire has a static central core and an imaging guidewire body comprising an acoustical scanning device. The acoustical scanning device can be rotated to obtain 360 degree acoustical images of a site of interest in the patients body. Furthermore, the imaging guidewire includes a connector that permits the imaging guidewire body to be disengaged from the static central core tip so that the imaging guidewire body can be axially translated to obtain multi-position imaging. The imaging guidewire body is axially translated without losing the original guidewire positioning because the static central core maintains its position in the patient's body.

    System and method for intraluminal imaging

    公开(公告)号:US06827693B2

    公开(公告)日:2004-12-07

    申请号:US10165692

    申请日:2002-06-07

    IPC分类号: A61B500

    摘要: An improved catheter system having an ultrasonic imaging transducer coupled to a drive cable disposed within a lumen of a flexible tubular catheter body. An improvement including a reconfiguration of the ferrites in the hub assembly, such that the need for the gap between the ferrites is removed. A strain relief member is provide to increase the strength of the electrical transmission lines to enable them to withstand the tensile forces caused by either flushing and/or pull-back operations. A device which allows the electrical transmission lines to extend their length when placed in tension may also be employed to provide strain relief to the electrical transmission lines. Another improvement includes a counter-wound coil structure, which may either expand or contract as the drive cable is being rotated to strengthen the drive cable. The distal tip of the catheter body may be redesigned to provide a lumen which allows for the release of flushing fluids through a distal port in the guidewire lumen.

    System and method for intraluminal imaging
    47.
    发明授权
    System and method for intraluminal imaging 有权
    管腔内成像系统及方法

    公开(公告)号:US06793634B2

    公开(公告)日:2004-09-21

    申请号:US09862811

    申请日:2001-05-22

    IPC分类号: A61B814

    CPC分类号: A61B8/12 A61B8/4461

    摘要: An improved catheter system having an ultrasonic imaging transducer coupled to a drive cable disposed within a lumen of a flexible tubular catheter body. An improvement including a reconfiguration of the ferrites in the hub assembly, such that the need for the gap between the ferrites is removed. A strain relief member is provide to increase the strength of the electrical transmission lines to enable them to withstand the tensile forces caused by either flushing and/or pull-back operations. A device which allows the electrical transmission lines to extend their length when placed in tension may also be employed to provide strain relief to the electrical transmission lines. Another improvement includes a counter-wound coil structure, which may either expand or contract as the drive cable is being rotated to strengthen the drive cable. The distal tip of the catheter body may be redesigned to provide a lumen which allows for the release of flushing fluids through a distal port in the guidewire lumen.

    摘要翻译: 一种改进的导管系统,其具有耦合到设置在柔性管状导管主体的内腔内的驱动电缆的超声成像换能器。 包括轮毂组件中的铁氧体的重新配置的改进,使得铁氧体之间的间隙的需要被去除。 提供应变消除构件以增加电力传输线的强度,使得它们能够承受由冲洗和/或拉回操作引起的张力。 允许电气传输线在放置在张力时延长其长度的装置也可用于向电气传输线提供应变消除。 另一个改进包括一个反绕线圈结构,其可以随着驱动电缆的旋转而膨胀或收缩,以加强驱动电缆。 可以重新设计导管主体的远侧末端以提供允许通过导丝管腔中的远端端口释放冲洗流体的内腔。

    System for intraluminal imaging
    48.
    发明授权

    公开(公告)号:US06626852B2

    公开(公告)日:2003-09-30

    申请号:US09862360

    申请日:2001-05-22

    IPC分类号: A61B814

    摘要: An improved catheter system having an ultrasonic imaging transducer coupled to a drive cable disposed within a lumen of a flexible tubular catheter body. An improvement including a reconfiguration of the ferrites in the hub assembly, such that the need for the gap between the ferrites is removed. A strain relief member is provided to increase the strength of the electrical transmission lines to enable them to withstand the tensile forces caused by either flushing and/or pull-back operations. A device which allows the electrical transmission lines to extend their length when placed in tension may also be employed to provide strain relief to the electrical transmission lines. Another improvement includes a counter-wound coil structure, which may either expand or contract as the drive cable is being rotated to strengthen the drive cable. The distal tip of the catheter body may be redesigned to provide a lumen which allows for the release of flushing fluids through a distal port in the guidewire lumen.

    Ultrasound imaging guidewire with static central core and tip

    公开(公告)号:US06585654B2

    公开(公告)日:2003-07-01

    申请号:US09844644

    申请日:2001-04-27

    IPC分类号: A61B812

    CPC分类号: A61B8/12 A61B8/4461 A61M25/09

    摘要: An ultrasound imaging guidewire, that is inserted into a patient's body. The guidewire has a static central core and an imaging guidewire body comprising an acoustical scanning device. The acoustical scanning device can be rotated to obtain 360 degree acoustical images of a site of interest in the patients body. Furthermore, the imaging guidewire includes a connector that permits the imaging guidewire body to be disengaged from the static central core tip so that the imaging guidewire body can be axially translated to obtain multi-position imaging. The imaging guidewire body is axially translated without losing the original guidewire positioning because the static central core maintains its position in the patient's body.

    System and method for intraluminal imaging

    公开(公告)号:US06364841B1

    公开(公告)日:2002-04-02

    申请号:US09523689

    申请日:2000-03-13

    IPC分类号: A61B814

    摘要: A vascular catheter system comprises a catheter body having a proximal and distal portion and a single common lumen therebetween. The catheter body includes a first connector secured to the distal end of the proximal portion and a second connector secured to the proximal end of the distal portion. The connectors can be selectively connected to each other to join the lumens of the proximal and distal portions together in a continuous, axially fixed relationship. Disposed within the lumens, when the proximal and distal portions are joined together, is a drive cable. The drive cable may be movably, rotatable about its own longitudinal axis and carries at its distal end, a work element, which is typically an ultrasonic imaging transducer or interventional device. The lumen carrying the cable will be sufficiently large along a proximal portion to permit preferential collapse of the cable should rotation of the distal end become impeded. The catheter body may be made of a polymer or plastic material, such as polyetheretherketone (PEEK), which provides adequate bonding stiffness and resistance to kinking from large hoop stresses.