In vitro testing of a left ventricular assist device Study of the effect of its control strategy on energetic relationships inside the left ventricle

1996 ◽  
Vol 3 (4) ◽  
pp. 231-239 ◽  
Author(s):  
G. Ferrari ◽  
K. Gorczynska ◽  
C. De Lazzari ◽  
K. Grodzicki ◽  
R. Mimmo ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Control Strategy ◽  
Left Ventricular ◽  
In Vitro Testing ◽  
Assist Device ◽  
Ventricular Assist ◽  
Left Ventricular Assist

A Systemic Mock Circulation for In-Vitro Testing of a Pneumatically Operated Left Ventricular Assist Device

2014 ◽  
Vol 47 (3) ◽  
pp. 8409-8414 ◽  
Author(s):  
A. Karabegovic ◽  
M. Hinteregger ◽  
C. Janeczek ◽  
W. Reichenfelser ◽  
V. Soragnese ◽  
...  
Keyword(s):  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Left Ventricular ◽  
In Vitro Testing ◽  
Assist Device ◽  
Ventricular Assist ◽  
Mock Circulation ◽  
Left Ventricular Assist

scholarly journals Primary Arterial Switch Operation for TGA/IVS and Regressed Left Ventricle: How and When to Use Left Ventricular Assist Device

2019 ◽  
Vol 11 (1) ◽  
pp. 97-100
Author(s):  
Dhananjay P. Malankar ◽  
Sachin Patil ◽  
Shivaji Mali ◽  
Shyam Dhake ◽  
Amit Mhatre ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Arterial Switch Operation ◽  
Left Ventricular ◽  
Assist Device ◽  
Ventricular Assist ◽  
Arterial Switch ◽  
Switch Operation ◽  
Left Ventricular Assist

Purpose: Numerous attempts have been made to extend the boundaries of arterial switch operation (ASO) in children presenting late with transposition of great arteries with intact ventricular septum (TGA/IVS) and regressed left ventricle (rLV). Many children tolerate the delayed ASO uneventfully, whereas others need mechanical circulatory support (MCS) to sustain the systemic circulation while the left ventricle undergoes retraining. Description: In this article, we describe six consecutive children with TGA/IVS and rLV who underwent primary ASO. Results: Three were managed medically, while three required MCS in the form of Centrimag left ventricular assist device (LVAD). All patients survived the operation and were discharged home in a stable condition. Conclusions: Primary ASO can be safely performed in children with TGA/IVS and rLV, provided the center has MCS options. Supporting the rLV with LVAD is feasible and can be achieved safely.

In vitro performance of trans‐valve left ventricular assist device installed at aortic valve position

2020 ◽  
Vol 44 (10) ◽  
pp. 1067-1072
Author(s):  
Eiji Okamoto ◽  
Tetsuya Yano ◽  
Yusuke Inoue ◽  
Yasuyuki Shiraishi ◽  
Tomoyuki Yambe ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Left Ventricular ◽  
Assist Device ◽  
Ventricular Assist ◽  
Left Ventricular Assist ◽  
Valve Position ◽  
In Vitro Performance

HYDRAULICS AND IN VITRO HEMOLYSIS TEST OF A MAGLEV IMPLANTABLE VENTRICULAR ASSIST DEVICE

2017 ◽  
Vol 17 (07) ◽  
pp. 1740023
Author(s):  
GUANGHUI WU ◽  
CHUANGYE XU ◽  
XIUJIAN LIU ◽  
CHANGYAN LIN ◽  
LIN YANG ◽  
...  
Keyword(s):  
Left Ventricular Assist Device ◽  
Ventricular Assist Device ◽  
Left Ventricular ◽  
Hydrodynamic Performance ◽  
In Vitro Tests ◽  
Animal Testing ◽  
Assist Device ◽  
Ventricular Assist ◽  
Left Ventricular Assist

A small implantable centrifugal left ventricular assist device, the CH-VAD (CH Biomedical Inc, JiangSu, China), featuring a magnetically levitated impeller is under development. The goal of this study is to validate hydrodynamic performance and hemocompatibility of the pump through in vitro studies. The hydraulic performance was quantified experimentally by using in vitro circulation loop system, and it turned out that the pump could deliver 5[Formula: see text]L/min under a pressure of 100[Formula: see text]mmHg at a rotational speed of approximate 3400[Formula: see text]rpm. A series of in vitro tests were established according to ASTM F1841, the standard practice for the assessment of hemolysis in continuous-flow blood pumps. The results showed that the average normalized index of hemolysis (NIH) value of the VAD was 0.0007[Formula: see text][Formula: see text][Formula: see text]0.0003[Formula: see text]mg/dL. The magnetic levitation left ventricular assist device (LVAD) has good hemolytic performance and stable mechanical property. These acceptable performance results supported proceeding initial acute animal testing conditions.

Sign in / Sign up

Export Citation Format

Share Document