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    • 42. 发明授权
    • Optical coherence domain reflectometry guidewire
    • 光学相干畴反射导丝
    • US06175669B1
    • 2001-01-16
    • US09050571
    • 1998-03-30
    • Billy W. ColstonMatthew EverettLuiz B. Da SilvaDennis Matthews
    • Billy W. ColstonMatthew EverettLuiz B. Da SilvaDennis Matthews
    • G02B600
    • A61B5/6852A61B1/00177A61B1/00181A61B5/0066A61B5/0084
    • A guidewire with optical sensing capabilities is based on a multiplexed optical coherence domain reflectometer (OCDR), which allows it to sense location, thickness, and structure of the arterial walls or other intra-cavity regions as it travels through the body during minimally invasive medical procedures. This information will be used both to direct the guidewire through the body by detecting vascular junctions and to evaluate the nearby tissue. The guidewire contains multiple optical fibers which couple light from the proximal to distal end. Light from the fibers at the distal end of the guidewire is directed onto interior cavity walls via small diameter optics such as gradient index lenses and mirrored corner cubes. Both forward viewing and side viewing fibers can be included. The light reflected or scattered from the cavity walls is then collected by the fibers, which are multiplexed at the proximal end to the sample arm of an optical low coherence reflectometer. The guidewire can also be used in nonmedical applications.
    • 具有光学感测能力的导丝基于多路复用光学相干域反射计(OCDR),其允许其在微创医疗中穿过身体时感测动脉壁或其他腔内区域的位置,厚度和结构 程序。 该信息将用于通过检测血管结点引导导线穿过身体并评估附近的组织。 导丝包含多个光纤,其将光从近端耦合到远端。 来自导线远端的纤维的光通过诸如梯度折射率透镜和镜像角立方体的小直径光学器件引导到内腔壁上。 可以包括前视和侧视纤维。 然后从空腔壁反射或散射的光被纤维收集,纤维在近端被多路复用到光学低相干反射计的样品臂。 导丝也可用于非医疗应用。