vensana-capital
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Howard Rosen
Howard Rosen is the CEO and co-founder of Evident Vascular, a San Jose medtech startup building an AI-powered intravascular ultrasound (IVUS) platform for peripheral and coronary interventions. A 30-year cardiovascular device veteran, he spent 21 years at Boston Scientific before helping guide Intact Vascular and its spinout Vesper Medical through acquisitions by Philips. He launched Evident out of stealth in 2023 with a $35 million Series A led by Vensana Capital and closed a Series B in 2025. He is known for a disciplined 'go slow to go fast' company-building philosophy.
John Sjölund
John Sjölund is the CEO and co-founder of Luna Diabetes, a San Diego medical-device company building a small overnight patch pump that automates insulin dosing for the tens of millions of people who use pens rather than pumps. A Swedish-American inventor named on 30-plus patents, he previously founded Timesulin with his brother Andreas (a co-creator of Skype), sold it to Bigfoot Biomedical in 2017, then built the Bigfoot Unity connected dosing system that Abbott acquired in 2023. In August 2025 Luna raised a $23.6M Series A led by Vensana Capital.