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    • 4. 发明申请
    • EXPANDABLE LASER CATHETER
    • 可扩展激光导管
    • WO0009196A9
    • 2000-06-08
    • PCT/US9917317
    • 1999-07-29
    • INTRALUMINAL THERAPEUTICS INCWINSTON THOMAS RNEET JOHN M
    • WINSTON THOMAS RNEET JOHN M
    • A61B17/22A61B18/22A61B18/24A61F2/958A61M25/00A61M29/02
    • A61B18/245A61B18/24A61B2017/22051A61B2018/00214A61B2018/00577A61B2018/2211A61B2018/2238A61B2018/2266A61B2018/2288A61M25/0021A61M25/0023A61M25/1002A61M29/02A61M2025/0024A61M2025/1004
    • Expandable laser catheters (10) for utilizing laser energy to remove obstructions (36) from body passages (34) are described. In one embodiment, the laser catheter includes a shaftway (12) having a distal end (18) including a flexible portion (20) configured in a series of radial folds. Multiple optical fibers (30), configured to transmit laser energy, extend along the shaftway and are attached to the flexible portion. An inflatable, ring-shaped balloon (22) is attached to the catheter (10) within the flexible portion (20). In use, the catheter (10) is inserted into a body passage (34) such as an artery, and advanced until the distal end (18) is adjacent to an obstruction. The balloon (22) is inflated to expand the flexible portion (20) and to bring the optical fibers (30) nearer the inner wall of the body passage. Laser energy is directed by the optical fibers (30) toward targeted regions of the obstruction (36). As the catheter is advanced and the process repeated, a core (50) is formed from the obstruction (36) and contained within the flexible portion (20). The flexible portion (20) is then contracted to hold the core (50), and the core (50) is removed from the body passage (34) by withdrawing the catheter (10).
    • 描述了用于利用激光能量去除主体通道(34)的障碍物(36)的可扩展激光导管(10)。 在一个实施例中,激光导管包括具有远端(18)的轴(12),该远端包括构造成一系列径向折叠的柔性部分(20)。 被配置为传递激光能量的多个光纤(30)沿着轴线延伸并附接到柔性部分。 可膨胀的环形气囊(22)在柔性部分(20)内附接到导管(10)。 在使用中,将导管(10)插入诸如动脉的体通道(34)中,并且前进直到远端(18)与障碍物相邻。 气球膨胀以膨胀柔性部分(20)并使光纤(30)靠近身体通道的内壁。 激光能量被光纤(30)引向障碍物(36)的目标区域。 当导管前进并且重复该过程时,从障碍物(36)形成并包含在柔性部分(20)内的芯(50)。 然后使柔性部分(20)收缩以保持芯部(50),并且通过抽出导管(10)将芯部(50)从主体通道(34)移除。
    • 8. 发明申请
    • METHOD AND APPARATUS FOR ULTRASONIC INSPECTION OF INACCESSIBLE AREAS
    • 超声波检测不合理区域的方法与装置
    • WO1993016381A1
    • 1993-08-19
    • PCT/US1993000920
    • 1993-02-05
    • WINSTON, Thomas, R.BRUNK, John, A.
    • G01N29/24
    • G10K11/24G01N29/2462G01N29/28
    • A method and apparatus which uses ultrasonic techniques to inspect critical pipe joints and other critical industrial areas that are normally inaccessible. A waveguide (20, 46) including one or more flexible fibers (72) is embedded in concrete (12) or whatever else embeds the piping which includes the critical area. One end of the waveguide (20, 46) is accessible so that an ultrasonic transducer (30) can be used to transmit ultrasonic signals along the waveguide (20, 46) and receive reflected echoes to provide an ultrasonic image of the critical area. In a case where the area to be inspected is submerged, the waveguide (20, 46) takes the form of a flexible fiber bundle which is manipulated until its end is adjacent to the critical area. Some of the fibers (72) in the bundle can be used to illuminate the critical area, and other fibers (72) can transmit optical images for display on a video monitor (78).
    • 一种使用超声波技术来检查关键管接头和通常无法接近的其他关键工业区域的方法和设备。 包括一个或多个柔性纤维(72)的波导(20,46)嵌入在混凝土(12)中,或者嵌入包括临界区域的管道的任何其它物体。 波导管(20,46)的一端是可接近的,使得可以使用超声波换能器(30)沿着波导(20,46)传送超声波信号,并接收反射回波以提供关键区域的超声波图像。 在被检查区域被浸没的情况下,波导管(20,46)采用柔性纤维束的形式,其被操纵直到其端部与临界区域相邻。 束中的一些光纤(72)可以用于照亮临界区域,并且其它光纤(72)可以传输用于在视频监视器(78)上显示的光学图像。