PHYSIO-PORT
User Manual Version 2017-11-12
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2.
Intended use:
PHYSIO-PORT are handy, patient-carried (long-term) blood pressure monitors for the measurement of
non-invasive blood pressure. The devices work with the innovative technology of the upward blood
pressure measurement (‘IMT’), which considerably reduces the duration of the individual measurement
compared to conventional blood pressure measuring devices. This greatly improves patient comfort.
The switchover to the conventional mode, which operates by means of blood pressure measurement
during the gradual release of the cuff pressure (down-measuring), is possible without problems during
programming. PHYSIO-PORT can be used with adults, children and small children with their respective
cuffs. The devices can carry out blood pressure measurements at different intervals for up to 48 hours
(max. 400 individual measurements) and store the measurement results
.
.
Notes on foreseeable misuse
PHYSIO-PORT must
not
be used for newborn babies and is
not
suitable for use in Intensive Care Units.
During a long-term blood pressure measurement, the instructions for the safety and functional reliability
of the device must be observed.
The sensors should remain attached to the body over the entire period, according to the instructions of
the medical personnel performing them.
No fluid should enter the device. If any fluid has entered the device, then it should only be used again
after having been checked and approved by the Service Department.
2.1
Oscillometric Measurement Method
The blood pressure is measured by the oscillometric method. The criteria for this method are the
pressure pulsations superimposed with every systole on the air pressure in the cuff. In order to measure
the blood pressure, a blood pressure cuff wrapped around the upper arm needs to be inflated and
subsequently deflated. The blood pressure is determined either during deflation of the cuff (deflation
measurement method) or, by using a novel and faster technology, already during inflation of the cuff
(inflation measurement method). The deflation measurement method is the most common method
used. With this technique, the cuff is inflated to a pressure which must be clearly above the expected
systolic value. Including cuff inflation, the measurement typically takes approx. 40 seconds (Figure A).
The inflation measurement method is a novel method based on the "
Inflation Measurement
Technology (IMT)
" developed by PAR Medizintechnik. With this innovative technique, the cuff is inflated
to a pressure just above the expected systolic value. Once the systolic value is determined, the cuff can
immediately and quickly be deflated (Figure B).
The measurement typically takes only approx. 20 seconds. If disturbances occur during measurements
with the inflation measurement method, which may be due to motion artifacts, for example, PHYSIO-
PORT will automatically switch to the deflation measurement method and complete the blood pressure
measurement.
