NIBP Monitoring
12-1
Chapter 12 NIBP Monitoring
12.1 Overview
The Monitor uses the oscillometric method to measure the non-invasive blood pressure (NIBP). The cuff pressure
at the highest oscillation amplitude is the mean pressure. The systolic pressure and diastolic pressure are calculated
from the mean pressure.
The blood pressure measurement error meets the requirements of IEC80601-2-30. Brachial artery was selected for
verification in invasive clinical trials.
NIBP measurement is applicable in electrosurgical operations and defibrillator discharges according to IEC80601-2-
30.
NIBP monitoring is applicable to adults, pediatrics and neonates patients.
12.2 Safety Information
Before the NIBP measurement, make sure the selected monitoring mode is appropriate for the patient
(adult, pediatric or neonate). It is dangerous to select a non-neonatal mode for neonatal patients.
Do not place the cuff on a limb with an intravenous tube or cannula, or the tissues around the cannula
may be damaged when the infusion is slowed or blocked in the cuff inflation process.
Make sure the inflation tube connecting the blood pressure cuff to the Monitor is not obstructed or
tangled.
Do not perform the NIBP measurement on a patient with sickle cell disease or existing or expected skin
lesions.
For a patient with severe disturbances of blood coagulation, please determine the applicability of
automatic NIBP measurement based on clinical evaluation, or the limb contacting the cuff may suffer
from hematoma due to friction.
Frequent measurements may cause blood flow interference and injure the patient.
To prevent further injury, do not place the cuff on any wound.
Do not place the blood pressure cuff on a limb under intravenous infusion, intravenous therapy or
arteriovenous shunt, or the transient blood flow interference will injure the patient.
Do not place the cuff on the arm at the same side as a mastectomy.
The increasing cuff pressure may cause transient function failure to other monitoring equipment used
on the same limb.
If the measurement time is too long (such as repeated use interval and continuous measurement mode),
friction between the cuff and the limb may cause purpura, ischemia and nerve damage. When
monitoring patients, always check the color, temperature, and sensitivity of the distal limbs. Once any
abnormality is found the cuff application position should be changed or blood pressure measurement
should be stopped.
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