Instructions for use: Ikus - Berlin Heart
Instructions for use: Ikus - Berlin Heart
Instructions for use: Ikus - Berlin Heart
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Intraoperative drive management<br />
Note<br />
• If the pump filling is very poor in this phase, volume can firstly be supplied from the<br />
HLM and then the membrane movement and the ejecting can be optimized. To do so,<br />
proceed according to the table:<br />
Observe: Corrective action<br />
Right pump:<br />
Is the pump filling well?<br />
(see below)<br />
Left pump:<br />
Is the pump ejecting well?<br />
Compare the left and right pumps<br />
Is the left pump filling clearly<br />
worse than the right?<br />
Pump filling criteria<br />
When filling the right pump, observe:<br />
The target is an extensive bypass of the right ventricle, not a complete bypass. Evidence<br />
of a complete bypass of the right ventricle includes:<br />
• Pump filling is strongly dependent on the respiratory cycle<br />
• Empty / limp ventricle<br />
• Abrupt stopping of the membrane during filling<br />
Important: If the above three points all apply, corresponding corrective action must<br />
be taken:<br />
• Reduce the suction pressure<br />
• Substitute volume<br />
Adjust the parameters<br />
<strong>Instructions</strong><br />
1. Move the cursor with ← / → to the desired field in the parameter table. The active field<br />
is colored underneath.<br />
2. Set the parameter value with ↓,↑ or / , then confirm with .<br />
Parameter: possible ranges<br />
If not: Check the filling pressure (central venous pressure; CVP).<br />
CVP low: Substitute volume<br />
CVP high: Increase the suction pressure, while avoiding the aspiration of air.<br />
If no improvement occurs: Check the cannula position via echo!<br />
If not: Check the mean arterial pressure<br />
(Guideline value: 70 mmHg)<br />
If yes: Increase the suction pressure on the left, while avoiding the aspiration<br />
of air.<br />
If no improvement occurs: Check the cannula position via echo!<br />
Parameter possible range ↓,↑ changed to<br />
Systolic pressure<br />
[mmHg]; driving pressure<br />
Diastolic pressure<br />
[mmHg]; suction pressure<br />
60 to 350 2.5 25<br />
0 to -100 2.5 25<br />
Rate [bpm] 30 to 150 1 10<br />
Relative systolic duration<br />
[%]<br />
20 to 70 1 10<br />
/ <br />
changed to<br />
Biventricular: Adjust the operating mode<br />
If you want the pumps to work in any other mode than synchronous mode, you can set the<br />
desired operating mode.<br />
• asychronous mode is recommended <strong>for</strong> patients with a small thorax volume in relation<br />
to the pump volume. Through the asynchronous mode, the intrathoracic blood volume<br />
1000002 Rev. 4.9.1 37
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