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
    55.
    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
    56.
    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.

    Catheter assembly with distal end inductive coupler and embedded transmission line
    59.
    发明授权
    Catheter assembly with distal end inductive coupler and embedded transmission line 有权
    导管组件与远端电感耦合器和嵌入式传输线

    公开(公告)号:US06245020B1

    公开(公告)日:2001-06-12

    申请号:US09238647

    申请日:1999-01-26

    IPC分类号: A61B812

    摘要: A catheter assembly includes an elongate catheter body having a proximal end and a distal end with a drive cable disposed therein, the drive cable having a proximal end and a distal end, and rotatable relative to the catheter body. A first electro-magnetic element is disposed proximate the distal end of the catheter, and a second electro-magnetic element disposed proximate the distal end of the drive cable and in electrical communication with an operative element mounted at the end of the drive cable, the first and second electro-magnetic elements forming an inductive coupler. The catheter assembly can include various other distal operative elements, which are in communication with corresponding proximal operative elements via transmission lines embedded within the wall of the catheter body.

    摘要翻译: 导管组件包括细长导管主体,其具有近端和远端,其中设置有驱动电缆,驱动电缆具有近端和远端,并且可相对于导管主体旋转。 第一电磁元件设置在导管的远端附近,以及设置在驱动电缆的远端附近并与安装在驱动电缆的端部的操作元件电连通的第二电磁元件, 形成电感耦合器的第一和第二电磁元件。 导管组件可以包括各种其它远端操作元件,其通过嵌入导管主体的壁内的传输线与相应的近端操作元件连通。

    Catheher system having connectable distal and proximal portions
    60.
    发明授权
    Catheher system having connectable distal and proximal portions 有权
    导管系统具有可连接的远端和近端部分

    公开(公告)号:US06050949A

    公开(公告)日:2000-04-18

    申请号:US150001

    申请日:1998-09-08

    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.

    摘要翻译: 血管导管系统包括具有近端部分和远端部分以及其间的单个共同管腔的导管体。 导管主体包括固定到近端部分的远端的第一连接器和固定到远端部分的近端的第二连接器。 连接器可以选择性地彼此连接,以将连接的轴向和固定的关系连接到近端部分和远端部分。 在腔内设置有近端部和远端部分连接在一起时,是驱动电缆。 驱动电缆可以可移动地围绕其自身的纵向轴线旋转并且在其远端处承载工作元件,其通常是超声成像换能器或介入装置。 承载电缆的内腔将沿着近端部分足够大,以允许当前端的旋转受阻时电缆的优先塌缩。 导管主体可以由聚合物或塑料材料制成,例如聚醚醚酮(PEEK),其提供足够的粘合刚度并且抵抗大环箍应力的扭结。