Pulsatile control system for a rotary blood pump

A system for controlling the speed of a rotary blood pump. The system oscillates the speed of the pump to produce pulsed pressure at the outlet of the pump. The speed is oscillated synchronously with the natural cardiac cycle. The natural cardiac cycle is determined using a pulsatility index calcula...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WOODARD JOHN CAMPBELL, SUTTON COLIN NEVILLE
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTROTHERAPY HUMAN NECESSITIES HYGIENE MAGNETOTHERAPY MEDICAL OR VETERINARY SCIENCE RADIATION THERAPY ULTRASOUND THERAPY
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Beschreibung
Zusammenfassung:	A system for controlling the speed of a rotary blood pump. The system oscillates the speed of the pump to produce pulsed pressure at the outlet of the pump. The speed is oscillated synchronously with the natural cardiac cycle. The natural cardiac cycle is determined using a pulsatility index calculated from the back EMF produced by the pump.