IMAGING CATHETER WITH ROTATABLE ARRAY
    1.
    发明申请
    IMAGING CATHETER WITH ROTATABLE ARRAY 审中-公开
    成像导管与可旋转阵列

    公开(公告)号:US20120108979A1

    公开(公告)日:2012-05-03

    申请号:US13283354

    申请日:2011-10-27

    IPC分类号: A61B8/14

    摘要: An imaging catheter is provided having a distal end portion selectively rotatable relative to a catheter body. A transducer array is supported by the distal end portion so that a corresponding imaging field may be selectively panned about an axis extending distally from the catheter body. The catheter may be advanced within a patient to a desired location. Optionally, the catheter may then be steered, or curved to position the transducer array. Optionally, the catheter may be rotated to further position the transducer array. Then, the imaging field may be panned without manipulation of the catheter body.

    摘要翻译: 提供成像导管,其具有相对于导管主体可选择性地旋转的远端部分。 换能器阵列由远端部分支撑,使得相应的成像场可以围绕从导管主体向远侧延伸的轴选择性地平移。 导管可以在患者体内前进到期望的位置。 可选择地,导管然后可被转向或弯曲以定位换能器阵列。 可选地,可以旋转导管以进一步定位换能器阵列。 然后,可以在不操纵导管体的情况下平移成像场。

    CATHETER WITH SHAPE MEMORY ALLOY ACTUATOR
    2.
    发明申请
    CATHETER WITH SHAPE MEMORY ALLOY ACTUATOR 审中-公开
    带形状记忆合金致动器的导管

    公开(公告)号:US20120108980A1

    公开(公告)日:2012-05-03

    申请号:US13280078

    申请日:2011-10-24

    IPC分类号: A61B8/12

    摘要: Actuators employable for oscillating movement of a load. An improved actuator may include at least a first shape memory member that is actuatable to affect at least a portion of the oscillating movement of the load. The actuator may further include a second shape memory member actuatable to affect at least a second portion of the oscillating movement of the load. The utilization of one or more shape memory members facilitates the realization of controllable and reliable oscillating movement of a load in a compact manner. Such actuators may be used in imaging catheters having an ultrasound transducer disposed for oscillating movement to scan across an internal region of interest. Such imaging catheters may be used in generating three dimensional and/or real-time three dimensional (4D) images.

    摘要翻译: 执行器可用于摆动载荷的运动。 改进的致动器可以包括至少第一形状存储器构件,其可致动以影响负载的振荡运动的至少一部分。 致动器还可以包括可致动以影响负载的振荡运动的至少第二部分的第二形状存储器构件。 利用一个或多个形状记忆元件有助于以紧凑的方式实现负载的可控和可靠的振荡运动。 这样的致动器可以用于具有设置成用于振荡运动以超过感兴趣的内部区域扫描的超声换能器的成像导管。 这样的成像导管可用于产生三维和/或实时三维(4D)图像。

    Sheath and methods of ultrasonic guidance for biopsy and catheter
insertion
    10.
    发明授权
    Sheath and methods of ultrasonic guidance for biopsy and catheter insertion 失效
    护套和超声引导方法进行活检和导管插入

    公开(公告)号:US5931787A

    公开(公告)日:1999-08-03

    申请号:US798633

    申请日:1997-02-11

    摘要: A sheath for receiving an ultrasonic probe and for defining the relative position of the probe with respect to a biopsy gun or a rigid needle is used for precise placement of the biopsy gun or needle tip in a structure. The sheath may comprise a keyhole-shaped slot for placement of a rigid needle through a puncture separate from a surgical port through which the sheath itself and the probe are introduced. A flexible catheter can thus be placed in a structure, using the ultrasonic probe to monitor its placement, followed by removal of the probe sheath and surgical port, leaving the catheter in place.

    摘要翻译: 用于接收超声波探头并且用于限定探针相对于活检枪或刚性针的相对位置的护套用于将活检枪或针尖精确地放置在结构中。 护套可以包括锁孔形狭缝,用于通过与外科手术端口分开的穿刺来放置刚性针,护套本身和探针通过外科口被引入。 因此,柔性导管可以放置在结构中,使用超声波探头监测其放置,然后移除探针护套和手术端口,使导管保持在适当位置。