Intravascular pumps have been designed to provide short-term mechanical circulatory support to patients that suffer from cardiogenic shock. Because these pumps can be deployed via cardiac catheterization procedures in leiu of open-heart surgery, they have the potential to serve as bridge-to-transplant support systems if they could be fully-implanted. We are investigating the feasibility of powering these devices wirelessly in the systemic circulation. This project is funded by the National Institute of Health (NIH).
Pediatric patients born with single ventricle abnormalities undergo a series of cardiovascular surgeries culminating in the Fontan circulation. In the Fontan circulation, the single functioning ventricle acts as the pumping source for both the systemic and pulonary circulations. Wave intensity analysis (WIA) utilizes the changes in pressure and blood velocity to approximate the forward and backward traveling intensity waves in the vasculature. We are investigating the utility of WIA as a hemodynamic tool in Fontan patients.
Magnetoelectric composites utilize magnetostrictive and piezoelectric layers to achieve strain-mediated conversion of magnetic energy to a voltage. These devices have the capability of acting as sensitive room-temperature magnetic sensors, when operated at their electromechanical resonance. We are investigating the use of these devices as biomagnetic sensors to create two-dimensional maps of the electrical activity of the heart.
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