GE CareScape V100, Руководство по обслуживанию

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B-4 CARESCAPE V100 Vital Signs Monitor 2048723-002C
Appropriate use of NIBP simulators: Appropriate use of NIBP simulators
BioTek
®
NIBP Pump 2™ (Fluke Biomedical) manual, in response to the question
of why monitor readings differ from the target values on the simulator, states:
"Neither the monitor or the NIBP Pump 2 is broken. Some monitors were
designed to give readings close to those obtained by the Auscultatory method of
blood pressure determinations. Other monitors have been designed to agree
with Invasive blood pressure readings. It is well known that Invasive and
Auscultatory NIBP readings on the same subject can be quite different" (6)
Both of these statements indicate that these simulators cannot be used to
demonstrate the accuracy of an NIBP monitor.
Why use simulators?
Simulators provide a method for producing repeatable signals that can be used
to check that the monitor is responding to noninvasive blood pressure signals.
Reference values obtained from a particular make and model of an NIBP
monitor can be used to confirm that no changes have occurred after service to
that same type of monitor.
Simulators can also be used to test for leaks and conduct static pressure
calibration of NIBP monitors and as part of preventive maintenance programs.
Summary
The accuracy of an NIBP monitor can only be determined by comparison to a
clinical blood pressure reference. NIBP simulators are useful for certain types of
testing, but should not be used for accuracy testing.
Figure 2A: Cuff oscillation from a clinical measurement