SYSTEMS AND METHODS FOR DETECTING SUCTION EVENTS IN BLOOD PUMPS

Systems and methods for detecting suction events in blood pumps by monitoring pump motor current. A pump suction event is detected based on a comparison of a pulsatility index that is calculated based on a filtered pump motor current signal with a first predetermined threshold or based on a comparis...

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Bibliographische Detailangaben
Hauptverfasser: El Katerji, Ahmad, Tan, Qing, Daschewski, Maxim, Alwatban, Mohammed, Chuev, Andre
Format: Patent
Sprache:eng
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Zusammenfassung:Systems and methods for detecting suction events in blood pumps by monitoring pump motor current. A pump suction event is detected based on a comparison of a pulsatility index that is calculated based on a filtered pump motor current signal with a first predetermined threshold or based on a comparison of a calculated index associated with a normalized band-pass filtered pump motor current signal with a second predetermined threshold. A suction event is also detected based on comparisons of both the calculated pulsatility index and the calculated index associated with the normalized band-pass filtered pump motor current signal with respective first and second predetermined thresholds.