What it is
Sonavex, Inc. is a medical device company based at 2835 O'Donnell Street in Baltimore's Canton neighborhood. It builds automated 3D ultrasound tools for the dialysis access care team, with a focus on real-time, quantitative blood flow and vessel imaging. The company says its mission is to help clinicians provide better care while reducing costs in the healthcare system. Its board lists Devin O'Brien-Coon, MD, MSE, and Jerry Prince, PhD, as co-founders, and David Narrow serves as CEO. Sonavex says its research has been supported by federal and state agencies.
Products
EchoMap supports cannulation of arteriovenous fistulas and grafts. It produces automated, top-down 3D images of a vessel's path and depth, with a color-coded depth overlay, so trained dialysis technicians and nurses can prepare for needle access without prior ultrasound experience. In April 2025 Sonavex announced FDA 510(k) clearance for EchoMap; the site notes that the newer EchoMap V2 is not yet commercially available.
EchoMark and EchoSure target fistula maturation. EchoMark is described as an ultrasound marker designed for blood vessels, and EchoSure automatically measures volumetric flow rate, vessel diameter and depth. The site states that both are investigational and not commercially available for AV access use.
Who it is for
Sonavex's customers are dialysis clinics, vascular access surgeons, nephrologists and the nurses and technicians who cannulate patients. For DMV founders, the company is a peer example of a Baltimore medtech startup that has taken an imaging product through FDA clearance, supported by a team of physicians, engineers and business leaders.
How to engage
Clinicians and partners can reach Sonavex through the contact form, which asks for organization, specialty and area of interest. The team page lists the management team, board and advisory board, which can help founders identify who leads sales, clinical and regulatory work. The company also posts updates on its news and events pages and lists job openings on its careers page when available.
Why it matters in the DMV ecosystem
Sonavex is one of several Baltimore companies building regulated medical devices. Its path from investigational products to a cleared device offers DMV hardware founders a concrete example of the regulatory steps and clinical focus a narrowly targeted medtech company may need.
