发明名称 |
VENOUS OXYGEN SATURATION SYSTEMS AND METHODS |
摘要 |
Methods and systems are discussed for determining venous oxygen saturation by calculating a ratio of ratios from respiration-induced baseline modulations. A calculated venous ratio of ratios may be compared with a look-up table value to estimate venous oxygen saturation. A calculated venous ratio of ratios is compared with an arterial ratio of ratios to determine whether baseline modulations are the result of a subject's respiration or movement. Such a determination is also made by deriving a venous ratio of ratios using a transform technique, such as a continuous wavelet transform. Derived venous and arterial saturation values are used to non-invasively determine a cardiac output of the subject.
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申请公布号 |
US2013066175(A1) |
申请公布日期 |
2013.03.14 |
申请号 |
US201113229465 |
申请日期 |
2011.09.09 |
申请人 |
ADDISON PAUL;WATSON JAMES;NELLCOR PURITAN BENNETT IRELAND |
发明人 |
ADDISON PAUL;WATSON JAMES |
分类号 |
A61B5/1455;A61B6/00 |
主分类号 |
A61B5/1455 |
代理机构 |
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代理人 |
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地址 |
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