Method and apparatus for detection of venous pulsation,申请号US20060528295-传众专利搜索

Method and apparatus for detection of venous pulsation

申请公布号：US2008077022(A1)

申请号：US20060528295

申请日期：2006.09.27

申请公布日期：2008.03.27

申请人：

NELLCOR PURITAN BENNETT INCORPORATED

发明人：BAKER CLARK R.

分类号：A61B5/02

主分类号：A61B5/02

摘要：Methods and systems for detecting venous pulsation are provided. In one embodiment, a metric of the pulse shape of one or more plethysmographic signals is derived and the presence of venous pulsation is detected based on the metric of pulse shape. Examples, of metrics of pulse shape include a skew metric and a ratio of a minima-to-maxima time over a pulse period interval. In an exemplary embodiment, the presence of venous pulsation is detected based on a metric of the pulse shape of one or more plethysmographic signals and on a phase comparison of the plethysmographic signals.