Product Manual

D-4 CARESCAPE V100 Vital Signs Monitor 2036991-001C
Principles of Noninvasive Blood Pressure Determination: DINAMAP SuperSTAT Algorithm
The operating cycle is composed of four parts: inflation time, deflation time,
evaluation time, and wait time. Wait time, which varies from mode to mode, is
affected by the cycle time (auto mode) or operator intervention (manual mode).
The figure shows the basic operating cycle for an NIBP determination.
SuperSTAT NIBP - auto mode
Systolic Search
If systolic pressure is not found, the SuperSTAT algorithm can search at cuff
pressures higher than the initial target pressure. The algorithm will inflate above
the initial target pressure to obtain more data in the systolic region. The pressure
is limited to the maximum allowed for the selected patient type.
The SuperSTAT algorithm evaluates the data obtained during the determination,
and the prior determination if it is available, to determine if additional data is
needed to complete the determination. It can then selectively pump to a single
cuff pressure to obtain the data it needs and then return to the existing deflation
sequence. This search process makes SuperSTAT more efficient.
Accuracy of the SuperSTAT NIBP measurements was validated against the intra-
arterial method. Do not use the auscultatory method to verify the accuracy of
the SuperSTAT NIBP parameter. The auscultatory method (using the cuff and
stethoscope) determines the systolic and diastolic pressures from sounds that
occur during cuff deflation. Mean arterial pressure cannot be determined by this
method. The oscillometric method used with all DINAMAP technologies
determines systolic, mean and diastolic pressures for the oscillations that occur
in the cuff during deflation.
WARNING
Arrhythmias will increase the time required by the NIBP
parameter to determine a blood pressure.
CUFF PRESSURE
TIME
Inflation
Time
Cycle Time
Determination Time
Deflation Time
Evaluation Time
Wait Time