Optimization of Transcutaneous Energy Transmission Systems Suitable for Left Ventricular Assist Devices

2013 ◽  
Vol 7 (2) ◽  
Author(s):  
Kelly Byron ◽  
Vlad Bluvshtein ◽  
Lori Lucke ◽  
John Pauly
Keyword(s):  
Pump Current ◽  
Optimization Method ◽  
Left Ventricular ◽  
Ventricular Assist Devices ◽  
Left Ventricular Assist Devices ◽  
Energy Transmission ◽  
Transmission Systems ◽  
Ventricular Assist ◽  
Assist Devices ◽  
Transcutaneous Energy Transmission

Transcutaneous energy transmission systems (TETS) wirelessly transmit power through the skin. TETS is particularly desirable for ventricular assist devices (VAD), which currently require cables through the skin to power the implanted pump. Current implantable TETS systems are not optimized for high power VAD applications. Optimizing the inductive link of the TET system is a multi-parameter problem. Most current techniques to optimize the design simplify the problem by combining parameters leading to sub-optimal solutions. In this paper we present an optimization method using a genetic algorithm to handle a larger set of parameters, which leads to a more optimal design.

Devices for Transcatheter Haemodynamic Support for Left Heart Failure

2010 ◽  
Vol 5 (1) ◽  
pp. 16
Author(s):  
Aman Ali ◽  
Timothy A Sanborn ◽  
◽  
Keyword(s):  
Mortality Rate ◽  
Cardiogenic Shock ◽  
Left Ventricular ◽  
Ventricular Assist Devices ◽  
Left Ventricular Assist Devices ◽  
Severe Left Ventricular Dysfunction ◽  
Ventricular Assist ◽  
Left Heart Failure ◽  
Assist Devices ◽  
Left Ventricular Assist

Among patients with acute myocardial infarction (AMI), those in cardiogenic shock have the highest mortality rate. Early revascularisation with primary percutaneous intervention or coronary artery bypass surgery has decreased the mortality rate of patients in cardiogenic shock, but it remains high. The conventional treatment of haemodynamic instability has been the use of the intra-aortic balloon pump (IABP); however, the IABP may not give adequate support to patients with severe left ventricular dysfunction. Recent advances in percutaneous left ventricular assist devices, specifically the TandemHeart and Impella LP 2.5, have shown improved haemodynamic support compared with the IABP. This article provides an overview of the use of percutaneous left ventricular assist devices to treat patients presenting with cardiogenic shock after acute MI.

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