发明名称 |
APPARATUS, SYSTEMS AND METHODS ANALYZING PRESSURE AND VOLUME WAVEFORMS IN THE VASCULATURE |
摘要 |
Apparatus, systems and methods are provided for analyzing relative compliance in the peripheral vasculature. Such apparatus, systems and methods generally involve generating a plethysmograph (PG) signal, generating one or more pressure waveforms and comparing the pressure waveform(s) relative to the PG signal to determine compliance indexes associated particular regions of the vasculature. A relative compliance ratio may also be determined by comparing arterial and venous relative compliance indexes. Apparatus, systems and methods are also provided for analyzing a PG waveform. Such apparatus, systems and methods generally involve generating a plethysmograph (PG) signal and comparing amplitude modulation of the PG signal relative to baseline modulation of the PG signal to estimate a relationship between left ventricular end diastolic pressure and stroke volume. The estimated relationship may account for a phase offset for the time between when changes in venous return affect left ventricular end diastolic pressure and stroke volume. |
申请公布号 |
WO2012009350(A9) |
申请公布日期 |
2012.02.09 |
申请号 |
WO2011US43701 |
申请日期 |
2011.07.12 |
申请人 |
YALE UNIVERSITY;SHELLEY, KIRK, H.;SILVERMAN, DAVID, G. |
发明人 |
SHELLEY, KIRK, H.;SILVERMAN, DAVID, G. |
分类号 |
A61B5/0295 |
主分类号 |
A61B5/0295 |
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地址 |
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