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1. 发明申请

US20120200845A1 BIOLOGICAL TISSUE INSPECTION METHOD AND SYSTEM 有权
标题翻译：生物组织检查方法与系统
公开(公告)号：US20120200845A1
公开(公告)日：2012-08-09
申请号：US13353797
申请日：2012-01-19
申请人： Guy ROUSSEAU , Alain BLOUIN , Jean-Pierre MONCHALIN
发明人： Guy ROUSSEAU , Alain BLOUIN , Jean-Pierre MONCHALIN
IPC分类号： G01N21/55 , G01B9/02
CPC分类号： A61B5/0093 , A61B5/0059 , A61B5/0095 , A61B5/0097 , G01N21/1702 , G01N21/171 , G01N29/2418 , G01N2291/02475
摘要： A method and system for inspecting biological tissue that has no applied coatings or treatments to improve reflectivity comprises an optical detection system with an exposed surface for inspection by an optical detection system; and a laser for exciting an ultrasonic wave within the tissue, which wave propagates within the tissue at least near the surface. The optical detection system includes: a laser to emit a pulsed detection laser beam onto the surface at a detection spot, the pulsed laser beam having a wavelength at which there is large scattering and little absorption by the tissue, and a pulse duration is chosen to correspond with ultrasonic propagation times associated with a range of depths of the scan, whereby the fluence of the detection laser is not applied unless ultrasonic information regarding a given depth is being obtained; and large étendue collection optics for collecting reflected and backscattered light from the detection spot; and a demodulator to extract information from the ultrasonic wave from the collected light.
摘要翻译：用于检查没有施加涂层或处理以改善反射率的生物组织的方法和系统包括具有暴露表面的光学检测系统，用于由光学检测系统检查; 以及用于激发组织内的超声波的激光，该波在组织内至少在表面附近传播。光学检测系统包括：激光器，其在检测点处在表面上发射脉冲检测激光束，脉冲激光束具有散射大且组织吸收小的波长，脉冲持续时间选择为对应于与扫描深度范围相关联的超声传播时间，由此除非获得关于给定深度的超声信息，否则不应用检测激光的注量; 和用于收集来自检测点的反射和反向散射光的大型收集光学元件; 以及解调器，用于从收集的光提取来自超声波的信息。

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