Abiomed Impella 2.5, Инструкция по эксплуатации

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4.9 Impella
®
System for Use During Cardiogenic Shock
PLACEMENT SCREEN
The placement screen (see Figure 4.4) displays real-time operating data for the system. The
screen displays the placement signal and motor current waveforms as well as the maximum/
minimum and average values for each waveform in the central display area of the screen.
Use the
DISPLAY
soft button to navigate to the placement screen.
Impella Flow
3.5
System Power
MUTE
ALARM
0 . 0
DISPLAY
0 . 0
MENU
PURGE
SYSTEM
Impella CP S/N: 123456
30 - 09 - 2012 05:30
100%
CONTROL
FLOW
A U T O
L/min
4.0 Max
________________________
3.0 Min
Purge System
Purge Pressure: 600 mmHg
Purge Flow: 20.0 ml/hr
Motor
Current
8 08 /68 4
( 7 46)
( mA)
10 sec.
Placement
Signal
( mmHg)
109/8 0
( 93)
10 sec.
160
0
1000
0
Waveforms
in Central
Display Area
Figure 4.4 Placement Screen
Figure 4.4 shows two time-based waveform signals from different sources.
• Placement signal waveform
• Motor current waveform
PLACEMENT SIGNAL WAVEFORM
The placement signal waveform displays a pressure measurement that is useful for determining
the location of the open pressure area of the catheter with respect to the aortic valve. The
placement signal is used to verify whether the Impella
®
Catheter is in the aorta or in the ventricle
by evaluating the current pressure waveform as an aortic or ventricular waveform (Impella
®
2.5
and Impella CP
®
) or by evaluating the differential pressure as pulsatile or flattened (Impella
®
5.0
and LD). The scale for the placement signal waveform is displayed to the left of the waveform.
The default scaling is 0–160 mmHg (Impella
®
2.5 and Impella CP
®
) or -20–60 mmHg (Impella
®
5.0 and LD). For Impella
®
2.5 and Impella CP
®
, it can be adjusted in 20 mmHg increments, with
a minimum upper limit of 100 mmHg and a maximum upper limit of 240 mmHg. For Impella
®
5.0 and LD, the maximum display range is -60–100 mmHg.
To the right of the waveform is a display that labels the waveform, provides the units of
measurement, and shows the maximum and minimum values and the average value from the
samples received. At the bottom of that window is the time scale, which you can set by pressing
the
DISPLAY
soft button.
Retrograde Flow
A setting of P-0 will result in
retrograde flow when the
Impella
®
Catheter is placed
across the aortic valve.
Retrograde flow may also
occur at P-1.
4
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