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公开(公告)号:US20080214943A1
公开(公告)日:2008-09-04
申请号:US11720566
申请日:2005-11-17
申请人: Tomas Kara , Jiri Nykodym , Charles J. Bruce , Paul Friedman , Kalpaki L. Venkatachalam , Virend K. Somers
发明人: Tomas Kara , Jiri Nykodym , Charles J. Bruce , Paul Friedman , Kalpaki L. Venkatachalam , Virend K. Somers
IPC分类号: A61B5/026
CPC分类号: A61B5/0261
摘要: Perfused tissue is illuminated and light passing through the tissue or reflected from it is detected to produce an electrical signal. Amplitude pulses corresponding to the subject's heart beat are detected in the electrical signal and the areas of these pulses are calculated to produce blood flow values indicative of the blood volume pumped by the heart. The blood flow values may be used alone or in combination with other measured cardiac parameters to evaluate cardiac function.
摘要翻译: 穿透组织被照亮,并且检测到穿过组织或从其反射的光以产生电信号。 在电信号中检测对应于被检者心跳的幅度脉冲,并且计算这些脉冲的面积,以产生指示由心脏泵送的血容量的血流值。 血流值可以单独使用或与其他测量的心脏参数组合使用以评估心脏功能。