| 摘要 |
The invention provides a method and an apparatus for a continuous non-invasive and non-obstrusive monitoring of blood pressure. The method comprises the steps of: a) measuring the value (PW) of a Pulse Wave parameter, equal to or derived from the Pulse Wave Velocity (PWV) parameter of a segment of the arterial tree of a subject, b) measuring the value (CO) of the Cardiac Output parameter, and c) determining the value (BP) of the blood pressure that satisfies <maths id="MATH-US-00001" num="00001"> <math overflow="scroll"> <mrow> <mrow> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mi>P</mi> </mrow> <mo>=</mo> <mrow> <munder> <mrow> <mi>arg</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mi>min</mi> </mrow> <mi>BP</mi> </munder> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mrow> <mi>d</mi> <mo></mo> <mrow> <mo>(</mo> <mrow> <mrow> <mi>P</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mi>W</mi> </mrow> <mo>,</mo> <mrow> <mo></mo> <mrow> <mo>(</mo> <mrow> <mrow> <mi>C</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mi>O</mi> </mrow> <mo>,</mo> <mrow> <mi>B</mi> <mo></mo> <mstyle> <mspace width="0.3em" height="0.3ex"/> </mstyle> <mo></mo> <mi>P</mi> </mrow> </mrow> <mo>)</mo> </mrow> </mrow> </mrow> <mo>)</mo> </mrow> </mrow> </mrow> </mrow> <mo>,</mo> </mrow> </math> </maths> where PW is the value measured in step a), <img id="CUSTOM-CHARACTER-00001" he="3.13mm" wi="3.56mm" file="US20090163821A1-20090625-P00001.TIF" img-content="character" img-format="tif"/>(CO, BP) corresponds to a predicted value of the Pulse Wave parameter computed according to a model of the segment of the arterial tree, the value (CO) of the Cardiac Output parameter measured in step b) and an hypothesized value of the blood pressure.
|
