公开(公告)号：US20110112425A1

公开(公告)日：2011-05-12

申请号：US12990806

申请日：2009-05-04

申请人： Jens Muhlsteff ,  Robert Pinter ,  Geert G.G. Morren

发明人： Jens Muhlsteff ,  Robert Pinter ,  Geert G.G. Morren

IPC分类号： A61B5/08

CPC分类号： A61B5/0816 ,  A61B5/05 ,  A61B5/0507 ,  A61B5/113 ,  A61B5/7239 ,  G01S7/352 ,  G01S13/583 ,  G01S13/88

摘要： The invention relates to a method for detection of respiration of a patient comprising the following steps: emitting an electromagnetic signal towards the patient; receiving a reflected electromagnetic signal reflected from the patient; converting the reflected electromagnetic signal, yielding a first signal; phase-shifting the reflected electromagnetic signal and converting the phase-shifted reflected electromagnetic signal, yielding a second signal; determining a first vector being defined by the time derivatives of the first signal and the second signal, for a common first point in time; determining a second and vector being defined by the time derivatives of the first signal and the second signal, for a common second point in time; and calculating the scalar product of the normalized first vector and the normalized second vector as an indicator value for a change from expiration to inspiration of the patient or vice versa. A change from expiration to inspiration of the patient or vice versa is preferably indicated if the indicator value is below a threshold value, preferably below a value of 0. In this way, a possibility for contactless remote respiration monitoring of a patient based on the Doppler radar principle is provided which is reliable and easy to handle.

摘要翻译： 本发明涉及一种用于检测患者呼吸的方法，包括以下步骤：向患者发射电磁信号; 接收从患者反射的反射的电磁信号; 转换反射的电磁信号，产生第一信号; 相移所反射的电磁信号并转换相移的反射电磁信号，产生第二信号; 对于公共的第一时间点，确定由所述第一信号和所述第二信号的时间导数定义的第一矢量; 对于公共第二时间点，确定由所述第一信号和所述第二信号的时间导数定义的第二和向量; 以及计算标准化第一矢量和归一化第二矢量的标量乘积，作为从患者到呼吸到吸气的改变的指标值，反之亦然。 如果指标值低于阈值，优选地低于0，则优选地指示从患者的期满到吸气的改变或反之亦然。以这种方式，基于多普勒的患者的非接触远程呼吸监测的可能性 提供雷达原理可靠，易于处理。