interatrial-shunt
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Adona Medical
Adona Medical is a clinical-stage medical device company in Los Gatos, California developing the Delphi System, a chronically adjustable interatrial shunt with integrated bi-atrial pressure monitoring designed to personalize heart failure therapy over time. A Shifamed portfolio company founded in 2019 by Brian Fahey, Amr Salahieh, and Lewis Schwartz, Adona uses shape memory nitinol and an external induction catheter to resize the shunt after implantation without further invasive procedures.
Brian Fahey
Brian Fahey is a serial medtech entrepreneur who co-founded Adona Medical, a clinical-stage company developing an adjustable interatrial shunt with integrated bi-atrial pressure sensors for heart failure management. A Duke-trained biomedical engineer and Stanford Biodesign alumnus, Fahey previously co-founded Niveus Medical, which delivered over 10,000 ICU rehabilitation treatments before being acquired by Stryker in 2017. At Adona, he guided the company through $95.5M in total funding including a $33.5M Series C in 2024, and oversaw the initiation of first-in-human clinical trials before stepping down as CEO in December 2025.