
基本信息:
- 专利标题: Blood Flow Sensor
- 专利标题(中):血流传感器
- 申请号:US11815668 申请日:2006-02-09
- 公开(公告)号:US20080188726A1 公开(公告)日:2008-08-07
- 发明人: Cristian Presura , Antonius Hermanus Maria Akkermans , Carsten Heinks , Marijn Christian Damstra , Daniela Tache
- 申请人: Cristian Presura , Antonius Hermanus Maria Akkermans , Carsten Heinks , Marijn Christian Damstra , Daniela Tache
- 申请人地址: NL EINDHOVEN
- 专利权人: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
- 当前专利权人: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
- 当前专利权人地址: NL EINDHOVEN
- 优先权: EP05300108.7 20050210
- 国际申请: PCT/IB06/50425 WO 20060209
- 主分类号: A61B5/1468
- IPC分类号: A61B5/1468
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(中):
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。
IPC结构图谱:
A | 人类生活必需 |
--A61 | 医学或兽医学;卫生学 |
----A61B | 诊断;外科;鉴定 |
------A61B5/00 | 用于诊断目的的测量;人的辨识 |
--------A61B5/145 | .测量体内血液特性,例如,气体浓度、pH值 |
----------A61B5/1468 | ..用化学或电化学方法,如用极谱装置 |