Login

Join for Free!
117185 members
table of contents table of contents

This article describes the initial phase of this program(i.e. to …


Biology Articles » Bioengineering » Development of a Small, Implantable Right Ventricular Assist Device » Figures

Figures
- Development of a Small, Implantable Right Ventricular Assist Device

..................................................

Figure 1: A comparison of the CorAide™ LVAD (Left) and DexAide RVAD (Right). Both pumps consist of three sub-assemblies: the volute housing, the rotating assembly, and the stator assembly (from top to bottom).

Figure 1

..................................................

Figure 2: Schematic drawings of nonpulsatile and pulsatile mock circulatory systems. F: DexAide pump flow, Pin: Inlet pressure, Pout: Outlet pressure, VAD: ventricular assist device.

Figure 2

..................................................

Figure 3: Pressure rise vs. pump flow relationship under various pump speeds. The shaded area shows our target operating range. The upward bars indicate standard deviation.

Figure 3

..................................................

Figure 4: Pump power vs. pump flow relationship with various pump speeds. The upward bars indicate standard deviation.

Figure 4

..................................................
 
Figure 5: Normalized pump power vs. pump flow relationship under various pump speeds. The upward bars indicate standard deviation.

Figure 5

..................................................
 
Figure 6: Pump efficiency vs. pump flow relationship under various pump speeds. The upward bars indicate standard deviation.

Figure 6

..................................................

Figure 7: Instantaneous relationship between pressure rise vs. pump flow (thin line) in the pulsatile mock circulatory system with a DexAide pump speed set at 2,400 rpm and a pneumatic VAD beat rate set at 70 bpm. The mean pressure rise vs. mean pump flow data in the pulsatile mock circulatory system is plotted as a closed circle. The data in the nonpulsatile circulatory system with the DexAide pump speed of 2,400 rpm are also plotted (thick line) for comparison.

Figure 7

..................................................

Figure 8: Instantaneous relationship between pressure rise vs. pump flow (thin line) in the pulsatile mock circulatory system with the DexAide pump speed set at 2,400 and the pneumatic VAD beat rate set at 120 bpm. The mean pressure rise vs. mean pump flow data in the pulsatile mock circulatory system is plotted as a closed circle. The data in the nonpulsatile circulatory system with the DexAide pump speed of 2,400 are also plotted (thick line) for comparison.

Figure 8

..................................................
 
Figure 9: Percutaneous BVAD with CorAide LVAD and DexAide RVAD.

Figure 9

..................................................


rating: 0.00 from 0 votes | updated on: 31 Oct 2006 | views: 7029 |

Rate article:







excellent!bad…