5.44
Instructions for Use & Clinical Reference Manual (US)
Table 5.6 P-Level Flow Rates for the Impella
®
LD Catheter
P-Level
*Flow Rate
(L/min)
Revolutions Per Minute
(rpm)
P-0
0.0 – 0.0
0
P-1
0.0 – 1.4
10,000
P-2
0.5 – 2.6
17,000
P-3
0.5 – 3.1
20,000
P-4
0.9 – 3.4
22,000
P-5
1.4 – 3.7
24,000
P-6
1.8 – 4.0
26,000
P-7
2.6 – 4.4
28,000
P-8
3.4 – 4.7
30,000
P-9
4.2 – 5.3
33,000
*Flow rate can vary due to suction or incorrect positioning.
PURGE CASSETTE PROCEDURES
When replacing the purge cassette, the replacement process must be completed
within 2 minutes. The Impella
®
Catheter may be damaged if replacement takes
longer than 2 minutes.
There are five procedures for maintaining the Impella
®
Catheter purge system:
• Change purge system (changing cassette and purge fluid)
• Change purge fluid
• Change purge cassette
• De-air purge system
• Transfer to standard configuration
Each procedure can be accessed using the
PURGE SYSTEM
soft button. Transferring to the
standard configuration was discussed above. The other four purge cassette procedures are
discussed below.
Retrograde Flow
A setting of P-0 will result
in retrograde flow when
the Impella
®
LD Catheter is
placed across the aortic valve.
Retrograde flow may also
occur at P-1.
Placement Monitoring
Suspended
When the Impella
®
Catheter is
operating in a low flow range,
placement monitoring may be
suspended and the flow rate
in the lower left corner of the
controller display screen will
turn yellow to indicate that
Impella
®
position is unknown.
Replacement Time
If the purge flow is more
than 7 mL/hr or the dextrose
concentration is less than
20%, replacement time
will be less than 2 minutes.
Replacement should always
be performed as quickly as
possible.
Summary of Contents for Impella 2.5
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