4.10
Instructions for Use & Clinical Reference Manual (US)
PURGE FLOW
The purge flow rate delivered by the purge cassette is displayed in mL/hr. The standard scale for
the purge flow (0–30 mL/hr) is displayed to the left of the purge flow plot. The maximum value
on this scale can be adjusted from 20 mL/hr to 200 mL/hr in increments of 10 mL/hr.
To the right of the plot is a display that labels the plot and shows the most recent value update.
You can set the time scale at the bottom of the window by pressing the
DISPLAY
soft button.
An advisory alarm will be displayed in the alarm window when the purge flow rate increases
or decreases by 2.5 mL/h. The message is intended to aid patient management by alerting the
clinician to changes in the rates of dextrose and heparin infusion through the purge fluid. The
alarm clears when you press the
MUTE ALARM
button.
PURGE PRESSURE
The purge pressure generated by the purge cassette is displayed in mmHg. The standard scale
for the purge pressure (0–1500 mmHg) is displayed to the left of the purge pressure plot. The
maximum value on this scale can be adjusted from 100 mmHg to 2000 mmHg in increments
of 100 mmHg.
To the right of the plot is a display that labels the plot and shows the most recent value update.
You can set the time scale at the bottom of the window by pressing the
DISPLAY
soft button.
INFUSION HISTORY
The infusion history screen displays the infusion volume as well as the amount of heparin and
dextrose infused each hour. The current time period is displayed at the top of the list. The
calculations begin when the case start procedure is completed and Impella
®
RP Catheter flow
rate is greater than 0 L/min. The infusion history screen updates after each milliliter of purge fluid
is delivered and after each unit of heparin and dextrose is delivered.
Use the
DISPLAY
soft button to navigate to the infusion history screen.
Figure 4.6 shows a sample infusion history screen.
