Modes Of Operation - Abiomed ImpellaCP Manuel D'utilisation

MODES OF OPERATION

AUTO
In AUTO, the Automated Impella Controller sets the motor speed of the
Impella Catheter to achieve the maximum possible flow without causing
suction. During AUTO, the highest the P-level the Impella CP with
SmartAssist can run is P-9. After 3 hours of operation, the controller
automatically switches to P-level mode. Upon transfer from AUTO mode to
P-level mode, the controller displays the message shown below and the
AUTO setting is no longer an option.
Figure 1.13 Transfer to P-level Mode
P-LEVEL
In P-LEVEL mode you can select one of ten P-levels (P-0 to P-9) for the
Impella Catheter (see Table below). Select the lowest P-level (P-2 or higher)
that will enable you to achieve the flow rate necessary for patient support.
At P-0, the Impella Catheter motor is stopped. If the Impella Catheter
minimum flow is below 0.1 L/min then the controller will increase the
motor speed to prevent retrograde flow.
Table 1.1 P-level Flow Rates for the Impella CP with SmartAssist Catheter
*Flow Rate
P-level (L/min) Revolutions Per Minute (rpm)
P-0 0.0
P-1 0.0 - 0.9
P-2 1.1 - 2.1
P-3 1.6 - 2.3
P-4 2.0 - 2.5
P-5 2.3 - 2.7
P-6 2.5 - 2.9
P-7 2.9 - 3.3
P-8 3.1 - 3.4
P-9** 3.3 - 3.7
*Flow rate can vary due to suction or incorrect positioning.
** The peak flow rate at systole is up to 4.3 L/min at P-9
To operate the Impella Catheter in P-level mode:
1.
Press the FLOW CONTROL soft button to open the FLOW
CONTROL menu.
2.
Turn the selector knob to increase or decrease the flow rate.
3.
Press the selector knob to select the new flow rate.
Impella CP with SmartAssist
®
0
23,000
31,000
33,000
35,000
37,000
39,000
42,000
44,000
46,000
®
Figure 1.14 Adjusting P-level
ADJUSTING THE LV PLACEMENT SIGNAL
CAUTIONS
The LV placement signal and LV estimates are not displayed when
pumps are running at P-3 or lower. Increase pump speed to P-4 or
higher to re-enable signal
Alarm conditions and low pump speeds may affect the LV placement
signal and estimates
Disruption of the outlet pressure placement signal, including alarms
related to the Ao placement signal, will prevent calculation and display
of an LV estimate. An operational Ao placement signal is required for
the LV estimate
LV placement signal calibration is not available if the P-level is less than
P-4 or if Suction, Placement Signal Not Reliable, or positioning alarms
are active
Abnormal conditions, including cardiac arrhythmia, Ao-LV uncoupling,
or aortic stenosis may limit the utility of the LV adjustment tool
ADJUST LV PLACEMENT SIGNAL
Adjust the LV placement signal to reduce potential measurement variability.
Adjust the LV Placement Signal when the white notification appears on the
screen. The notification appears first when a suggested adjustment is
calculated. If a suggested adjustment is calculated, then a second
notification will appear after 24 hours of pump use.
Figure 1.15 White Notification for adjust LV
To adjust the LV Placement Signal:
1. Press the MENU soft button.
2.
Select "Adjust LV Signal" option with rotary knob
3. Adjust the waveform using toggle arrows or rotary knob. The LV
Adjustment defaults to the suggested adjustment value.
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