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2.2.5 NIBP Module
2.2.5.1 General
This module provides the function of measuring the Non-Invasive Blood Pressure (NIBP)
parameter.
2.2.5.2 Principle diagram
Figure 2-8 Working principle of the NIBP module
2.2.5.3 Principle
The NIBP is measured based on the pulse vibration principle. Inflate the cuff which is on the
forearm till the cuff pressure blocks the arterial blood, and then deflate the cuff according to a
specified algorithm. While the cuff pressure is decreasing, the arterial blood has pulses, which are
sensed by the pressure transducer in the cuff. Consequently, the pressure transducer, connected
with the windpipe of the cuff, generates a pulsation signal, which is then processed by the NIBP
module to get the NIBP value.
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