摘要:
Es wird eine elektrische Mehrphasenmaschine vorgeschlagen mit einem Stator (3), welcher eine mindestens zwei Stränge (51,52,53;61,62) aufweisende Wicklung (5;6) zum Erzeugen eines elektromagnetischen Felds umfasst, wobei jeder Strang (51,52,53;61,62) zu einer anderen elektrischen Phase gehört, ferner mit einer Stelleinrichtung (4), die jeden Strang (51,52,53;61,62) jeweils mit einem Phasenstrom (Ia,Ib,Ic) oder jeweils mit einer Phasenspannung (Ua,Ub,Uc) als Stellgrösse versorgt, wobei die Stelleinrichtung (4) für jeden Strang (51,52,53;61,62) einen separaten Leistungsverstärker (41a,41b,41c,41d) umfasst, sodass die Stellgrösse für jeden Strang (51,52,53;61,62) unabhängig von den Stellgrössen für die anderen Stränge (51,52,53;61,62) regelbar ist und wobei mindestens ein gemeinsamer Verbindungspunkt (VP) vorgesehen ist, mit dem mindestens zwei der Stränge (51,52,53;61,62) verbunden sind, und wobei ein zusätzliches aktives Steuerelement (44) zum Verschieben des Potentials des Verbindungspunkts (VP) vorgesehen ist. Ferner wird eine Verfahren zum Betreiben einer solchen Maschine vorgeschlagen.
摘要:
The invention relates to an integrated centrifugal blood pump-oxygenator (1) comprising a housing (2) with a top (3) having a blood inlet (4), a blood outlet (5) and a gas inlet (6), and a bottom (7) having a rotational body (8) being rotatably arranged in a rotor-housing (9) of the bottom (7). The integrated centrifugal blood pump-oxygenator (1) further comprises an oxygenator membrane (10) provided in an interior (11) of the housing (2), wherein in the operation state oxygen (12) is transferred from the gas inlet (6) through the oxygenator membrane (10) to an gas outlet (13) and a blood (14) is brought in direct contact with the oxygenator membrane (10) by pumping the blood (14) by the rotational body (8) from the blood inlet (4) to the blood outlet (5). According to the invention, the rotational body (8) is magnetically journalled in a contact free manner with respect to the rotor-housing (9). The invention is also related to an extracorporeal life support system (1000) and a method of de-bubbling and priming a extracorporeal life support system (1000) in accordance with the present invention.
摘要:
The invention relates to a pump-inflow-cannula (1) providing a blood conduit from a heart (2) and / or from an associated vessel to an external blood handling system. Said pump-inflow-cannula comprises a body (3), encompassing an essentially axially extending inflow-lumen (4), having a distal-end (5) for an attachment of the inflow-lumen (4) to said blood handling system, and having a proximal-end (6) for an introduction of blood from the heart (2) and /or from the associated vessel into the inflow-lumen (4), wherein at least one projection (7) is provided at the proximal-end (6) to deflect a heart muscle from intruding into the inflow-lumen (4), wherein said body (3) of the pump-inflow-cannula comprises a reinforcement-means (8). The invention is also related to a pump-outflow-cannula (19) and to a blood managing system comprising a pump-inflow-cannula and a pump-outflow-cannula in accordance with the present invention.
摘要:
The invention relates to a pump-inflow-cannula (1) providing a blood conduit from a heart (2) and / or from an associated vessel to an external blood handling system, said pump-inflow-cannula (1) comprising a body (3), encompassing an inflow-lumen (4), extending essentially axially along a center-line (5), having a distal-end (6) for an attachment of the inflow-lumen (4) to said blood handling system, and having a proximal-end (7) for an introduction of blood from the heart (2) and / or from the associated vessel into the inflow-lumen (4). At the proximal-end (7) at least one angled-hole (8), extending around a longitudinal hole-axis (9) is provided, and said hole-axis (9) includes a presettable hole-angle (α) with the center-line (5) of the inflow-lumen (4), wherein said body (3) of the pump-inflow-cannula (1) comprises a reinforcement-means (10). The invention is also related to a pump-outflow-cannula (23) and to a blood managing system comprising a pump-inflow-cannula (1) and a pump-outflow-cannula (23) in accordance with the present invention.