Research of flow dynamics and occlusion condition in roller pump systems used for ventricular assist

2020 ◽  
Author(s):  
Yang Zhou ◽  
Beibei Sun ◽  
Minglong Chen ◽  
Chang Cui
Keyword(s):  
Flow Dynamics ◽  
Roller Pump ◽  
Ventricular Assist

A New Computational Fluid Dynamics Method for In-Depth Investigation of Flow Dynamics in Roller Pump Systems

2014 ◽  
Vol 38 (7) ◽  
pp. E106-E117 ◽  
Author(s):  
Xiaoming Zhou ◽  
Xin M. Liang ◽  
Gang Zhao ◽  
Youchao Su ◽  
Yang Wang
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Flow Dynamics ◽  
Roller Pump ◽  
Dynamics Method

The 50cc Penn State Left Ventricular Assist Device: A Parametric Study of Valve Orientation Flow Dynamics

ASAIO Journal ◽  
2006 ◽  
Vol 52 (2) ◽  
pp. 123-131 ◽  
Author(s):  
James W. Kreider ◽  
Keefe B. Manning ◽  
Leslie A. Oley ◽  
Arnold A. Fontaine ◽  
Steven Deutsch
Keyword(s):  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Parametric Study ◽  
Left Ventricular ◽  
Flow Dynamics ◽  
Assist Device ◽  
Ventricular Assist ◽  
Left Ventricular Assist ◽  
Penn State

scholarly journals Innovative Modeling Techniques and 3D Printing in Patients with Left Ventricular Assist Devices: A Bridge from Bench to Clinical Practice

2019 ◽  
Vol 8 (5) ◽  
pp. 635
Author(s):  
Rishi Thaker ◽  
Raquel Araujo-Gutierrez ◽  
Hernan G. Marcos-Abdala ◽  
Tanushree Agrawal ◽  
Nadia Fida ◽  
...  
Keyword(s):  
3D Printing ◽  
Left Ventricular ◽  
Flow Dynamics ◽  
Ventricular Assist Devices ◽  
Patient Specific ◽  
Left Ventricular Assist Devices ◽  
Ventricular Assist ◽  
Assist Devices ◽  
Left Ventricular Assist ◽  
Modeling Techniques

Left ventricular assist devices (LVAD) cause altered flow dynamics that may result in complications such as stroke, pump thrombosis, bleeding, or aortic regurgitation. Understanding altered flow dynamics is important in order to develop more efficient and durable pump configurations. In patients with LVAD, hemodynamic assessment is limited to imaging techniques such as echocardiography which precludes detailed assessment of fluid dynamics. In this review article, we present some innovative modeling techniques that are often used in device development or for research purposes, but have not been utilized clinically. Computational fluid dynamic (CFD) modeling is based on computer simulations and particle image velocimetry (PIV) employs ex vivo models that helps study fluid characteristics such as pressure, shear stress, and velocity. Both techniques may help elaborate our understanding of complications that occur with LVAD and could be potentially used in the future to troubleshoot LVAD-related alarms. These techniques coupled with 3D printing may also allow for patient-specific device implants, lowering the risk of complications increasing device durability.

Pulmonary complications of a roller pump right ventricular assist device

1988 ◽  
Vol 45 (1) ◽  
pp. 21-27 ◽  
Author(s):  
Bruce Toporoff ◽  
Corrado P. Marini ◽  
Philip E. Grubbs ◽  
Luis D. Berrizbeitia ◽  
Ira M. Nathan ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Ventricular Assist Device ◽  
Pulmonary Complications ◽  
Assist Device ◽  
Roller Pump ◽  
Ventricular Assist ◽  
Right Ventricular Assist Device
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