Novel HeartMate Cardiac Assist Systems (Thoratec)

2017 ◽  
pp. 557-563
Author(s):  
Edward J. Burke ◽  
Christopher Parker
Keyword(s):  
Cardiac Assist

Cardiac Assist Devices

1988 ◽  
Vol 6 (3) ◽  
pp. 449-459 ◽  
Author(s):  
John A. Elefteriades
Keyword(s):  
Assist Devices ◽  
Cardiac Assist ◽  
Cardiac Assist Devices

A new permanent atrial connector for cardiac assist devices

2008 ◽  
Vol 56 (S 1) ◽  
Author(s):  
M Petersen ◽  
N Guldner ◽  
M Großherr ◽  
HH Sievers
Keyword(s):  
Assist Devices ◽  
Cardiac Assist ◽  
Cardiac Assist Devices

Cognitive Dysfunction in Advanced Heart Failure and Prospective Cardiac Assist Device Patients

2006 ◽  
Vol 81 (5) ◽  
pp. 1738-1744 ◽  
Author(s):  
Ralph J. Petrucci ◽  
Karen C. Truesdell ◽  
Anne Carter ◽  
Naomi E. Goldstein ◽  
Megan M. Russell ◽  
...  
Keyword(s):  
Heart Failure ◽  
Cognitive Dysfunction ◽  
Advanced Heart Failure ◽  
Assist Device ◽  
Cardiac Assist ◽  
Cardiac Assist Device

Experimental Analysis of Pulsatile Flow Through Elastic Collapsible Tubes: Application to Cardiac Assist Device

1990 ◽  
Vol 112 (1) ◽  
pp. 75-79 ◽  
Author(s):  
O. Lichtenstein ◽  
U. Dinnar
Keyword(s):  
Systemic Circulation ◽  
Aortic Pressure ◽  
Assist Device ◽  
Cardiac Assist ◽  
Cardiac Assist Device ◽  
Non Invasive ◽  
Failing Heart ◽  
In Series ◽  
Vitro Analysis

This study presents a simulated analysis of Phased Compression Cardiac Assist Device (PCCAD) and evaluation of its applicability as a non-invasive temporary assist for a failing heart. The new technique is based on the chest pump mechanism for blood flow augmentation during external massage by phased compression of the abdominal and thoracic cavities. A semi-closed hydraulic system to simulate the systemic circulation was constructed; the system includes a left ventricle which functions according to the Starling principle and a pneumatic system which controls the pressures applied to the thoracic and abdominal cavities, in complete synchronization with the beating normal or failing heart. The possibility of manipulating the three pumps in series (venous, heart, and arterial) has been checked, and the principal parameters which effect the efficiency of the PCCAD were evaluated. This in-vitro analysis shows the high potential of a non-invasive temporary cardiac assist device. It points to the necessary measures one has to take in order to achieve good synchronization and to interfere externally with the augmentation of cardiac output or with the augmentation of root aortic pressure.

A versatile microprocessor-based multichannel stimulator for skeletal muscle cardiac assist

1998 ◽  
Vol 45 (1) ◽  
pp. 56-67 ◽  
Author(s):  
E.A. Cheever ◽  
D.R. Thompson ◽  
B.L. Cmolik ◽  
W.P. Santamore ◽  
D.T. George
Keyword(s):  
Skeletal Muscle ◽  
Cardiac Assist

scholarly journals 080 Heliported ECMO for cardiogenic shock expands cardiac assist surgical programs

2010 ◽  
Vol 2 (1) ◽  
pp. 27
Author(s):  
Vlad Gariboldi ◽  
Dominique Grisoli ◽  
Virginie Chalvignac ◽  
François Kerbaul ◽  
Alberto Ribieri ◽  
...  
Keyword(s):  
Cardiogenic Shock ◽  
Cardiac Assist

scholarly journals Shear Stress, Energy Losses, and Costs: A Resolved Dilemma of Pulsatile Cardiac Assist Devices

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Sayed Nour ◽  
Jia Liu ◽  
Gang Dai ◽  
Daniel Carbognani ◽  
Daya Yang ◽  
...  
Keyword(s):  
Shear Stress ◽  
Lower Energy ◽  
Left Ventricular ◽  
Energy Losses ◽  
Assist Devices ◽  
Cardiac Assist ◽  
Cardiac Assist Devices ◽  
Study Results ◽  
Pulsatile Perfusion ◽  
Perfusion Mode

Cardiac assist devices (CAD) cause endothelial dysfunction with considerable morbidity. Employment of pulsatile CAD remains controversial due to inadequate perfusion curves and costs. Alternatively, we are proposing a new concept of pulsatile CAD based on a fundamental revision of the entire circulatory system in correspondence with the physiopathology and law of physics. It concerns a double lumen disposable tube device that could be adapted to conventional cardiopulmonary bypass (CPB) and/or CAD, for inducing a homogenous, downstream pulsatile perfusion mode with lower energy losses. In this study, the device’s prototypes were tested in a simulated conventional pediatric CPB circuit for energy losses and as a left ventricular assist device (LVAD) in ischemic piglets model for endothelial shear stress (ESS) evaluations. In conclusion and according to the study results the pulsatile tube was successfully capable of transforming a conventional CPB and/or CAD steady flow into a pulsatile perfusion mode, with nearly physiologic pulse pressure and lower energy losses. This represents a cost-effective promising method with low mortality and morbidity, especially in fragile cardiac patients.

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