公开(公告)号：US20080188726A1

公开(公告)日：2008-08-07

申请号：US11815668

申请日：2006-02-09

申请人： Cristian Presura ,  Antonius Hermanus Maria Akkermans ,  Carsten Heinks ,  Marijn Christian Damstra ,  Daniela Tache

发明人： Cristian Presura ,  Antonius Hermanus Maria Akkermans ,  Carsten Heinks ,  Marijn Christian Damstra ,  Daniela Tache

IPC分类号： A61B5/1468

CPC分类号： A61B5/0261 ,  A61B5/7257

摘要： The present invention relates to a method for measuring blood flow in living tissue and a device for performing the method. The device comprises a laser and a photo sensor. The laser is arranged to illuminate (10) the tissue in such a way that a portion of the light beam, scattered by the tissue, re-enters the laser in order to obtain a self-mixing effect. The resulting light, that is registered (11) as an electric signal by the photo sensor, contains a speckle pattern that is depending on blood cell movement in the tissue. A Fourier transform is applied (12) to this signal and an exponential fit is applied (13) to the resulting frequency domain spectrum. Thereby parameters corresponding to the amount of blood cells and the average velocity of these cells may be obtained.

摘要翻译： 本发明涉及一种测定生物体组织中的血流量的方法和实施该方法的装置。 该装置包括激光和光传感器。 激光被布置成照亮（10）组织，使得被组织散射的光束的一部分重新进入激光器以获得自混合效果。 由光传感器注册（11）作为电信号的结果光包含取决于组织中的血细胞运动的散斑图案。 对该信号进行傅里叶变换（12），并对所得到的频域光谱进行指数拟合（13）。 从而可以获得与血细胞量相对应的参数和这些细胞的平均速度。