DEVELOPMENTAL PHASE OF A NEW AXIAL FLOW PUMP FOR LEFT VENTRICULAR ASSIST

ASAIO Journal ◽  
2002 ◽  
Vol 48 (2) ◽  
pp. 152 ◽  
Author(s):  
Michel Carrier ◽  
Andre Garon ◽  
Louis Conrad Pelletier
Keyword(s):  
Axial Flow ◽  
Left Ventricular ◽  
Developmental Phase ◽  
Ventricular Assist ◽  
Left Ventricular Assist ◽  
Axial Flow Pump ◽  
Flow Pump

Long-term Animal Survival with an Implantable Axial Flow Pump as a Left Ventricular Assist Device

2008 ◽  
Vol 20 (2) ◽  
pp. 124-127 ◽  
Author(s):  
Hiroaki Konishi ◽  
James F. Antaki ◽  
Philip Litwak ◽  
Marina Kameneva ◽  
Kenji Yamazaki ◽  
...  
Keyword(s):  
Left Ventricular Assist Device ◽  
Axial Flow ◽  
Left Ventricular ◽  
Assist Device ◽  
Ventricular Assist ◽  
Animal Survival ◽  
Left Ventricular Assist ◽  
Axial Flow Pump ◽  
Flow Pump

Left ventricular assist with an axial flow pump (Hemopump): Clinical application

1993 ◽  
Vol 55 (5) ◽  
pp. 1141-1146 ◽  
Author(s):  
Albrecht C. Wiebalck ◽  
Patrick F. Wouters ◽  
Ferdinand R. Waldenberger ◽  
Belhan Akpinar ◽  
Peter M. Lauwers ◽  
...  
Keyword(s):  
Clinical Application ◽  
Axial Flow ◽  
Left Ventricular ◽  
Ventricular Assist ◽  
Left Ventricular Assist ◽  
Axial Flow Pump ◽  
Flow Pump

scholarly journals Novel assessment of intestinal anastomotic perfusion using ICG SPY in a continuous flow LVAD patient

2020 ◽  
Vol 2020 (11) ◽  
Author(s):  
Daniel Kaufman ◽  
Danny Sherwinter ◽  
Ron Kaleya ◽  
Paul C Saunders
Keyword(s):  
Continuous Flow ◽  
Axial Flow ◽  
Colon Resection ◽  
Left Ventricular ◽  
Heartmate Ii ◽  
Ventricular Assist ◽  
Intestinal Anastomoses ◽  
First Case ◽  
Left Ventricular Assist ◽  
Axial Flow Pump

Abstract HeartMate II left ventricular assist device (LVAD) assists heart failure patients by generating continuous flow via axial flow pump placed in the left ventricle. Little is known of the effect of continuous flow on intestinal anastomoses. This is the first case visually documenting altered perfusion patterns in patients with LVADs using indocyanine green (ICG). A 72-year-old male required a colon resection, for adenocarcinoma, following implantation of an LVAD. Perfusion of the anastomosis was evaluated using indocyanine. During the assessment, an unusual perfusion pattern was noticed. Normally, flow as measured by SPY is seen as an initial blush of contrast followed by a gradual, pulsatile increase in the progression of the indocyanine through the tissues. In this patient, instead of the usual initial blush, a continuous beam of ICG was seen to flow though the blood vessels. This novel perfusion pattern is consistent with flow generated from LVAD.

scholarly journals Numerical analysis of the effect of the design of axial-flow pump cannula tip on stagnation and recirculation zones in the left ventricle

2020 ◽  
Vol 22 (2) ◽  
pp. 107-112
Author(s):  
M. S. Nosov ◽  
G. P. Itkin ◽  
V. M. Zaiko ◽  
V. A. Malgichev
Keyword(s):  
Left Ventricle ◽  
Axial Flow ◽  
Left Ventricular ◽  
Ventricular Assist ◽  
Axial Flow Blood Pump ◽  
Left Ventricular Assist ◽  
Inflow Cannula ◽  
Recirculation Zones ◽  
Axial Flow Pump

Objective: to analyze the inflow cannula of an implantable axial-flow blood pump for a long-term left ventricular assist system in order to minimize thromboembolic complications. Materials and methods. Hemodynamics was considered for 4 different designs of the inflow cannula, from 0 mm to 25 mm long. Areas at the base of the cannula received the most attention. Analysis was performed using the OpenFOAM software. Results. It was revealed that sizes of stagnation and recirculation zones directly depended on the length of the cannula when placed in the left ventricle. Accordingly, longer cannula increases the risk of thrombosis. Conclusion. The design of an inflow cannula determines the likelihood of thrombosis in the cannula. Longer inflow cannula increases stagnation and recirculation zones. This provides a basis for a search for other possible modifications.

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