公开(公告)号：US08320981B1

公开(公告)日：2012-11-27

申请号：US11771547

申请日：2007-06-29

申请人： Carl Mayer ,  Craig Seyl ,  Joseph Lee Hollmann ,  Eric Weiss ,  Lyle Frank Weaver ,  Timothy A. Fayram

发明人： Carl Mayer ,  Craig Seyl ,  Joseph Lee Hollmann ,  Eric Weiss ,  Lyle Frank Weaver ,  Timothy A. Fayram

IPC分类号： A61B5/1455

CPC分类号： A61B5/14503 ,  A61B5/14546 ,  A61B5/14551 ,  A61B5/4875

摘要： An implantable system includes light sources to transmit toward vascularized tissue, in a time multiplexed manner, light having a first wavelength of approximately 660 nm, light having a second wavelength of approximately 810 nm, light having a third wavelength of approximately 910 nm, and light having a fourth wavelength of approximately 980 nm. The system includes one or more light detector to detect light of the first, second, third and fourth wavelengths scattered by vascularized tissue. Additionally, one or more processor is configured to determine levels of blood oxygen saturation based on the detected scattered light of the first and third wavelengths, determine levels of tissue oxygen saturation based on the detected scattered light of the first and third wavelengths, determine levels of hemoglobin concentration based on the detected scattered light of the second wavelength, and determine levels of tissue hydration based on the detected scattered light of the second and fourth wavelengths.

摘要翻译： 可植入系统包括以时间复用方式向血管化组织透射的光源，具有约660nm的第一波长的光，具有约810nm的第二波长的光，具有约910nm的第三波长的光，以及光 具有约980nm的第四波长。 该系统包括一个或多个光检测器，用于检测由血管化组织散射的第一，第二，第三和第四波长的光。 另外，一个或多个处理器被配置为基于检测到的第一和第三波长的散射光来确定血氧饱和度的水平，基于检测到的第一和第三波长的散射光来确定组织氧饱和度的水平，确定 基于检测到的第二波长的散射光的血红蛋白浓度，并且基于检测到的第二和第四波长的散射光来确定组织水合的水平。