Skip to content
Companies

Sonavex

3D ultrasound that measures blood flow at dialysis access

Raised to date

$3.1M

of $15M offered across 1 Form D filing

Still open
$11.9M
Investors
5
Last filed
Jul 28, 2026

About

Sonavex is a Baltimore medical device company, spun out of Johns Hopkins University in 2013, that builds automated 3D ultrasound products for dialysis vascular access care. Its portfolio pairs a bioresorbable implantable ultrasound marker with deep-learning-enabled imaging hardware so clinicians without ultrasound training can quantify blood flow and vessel anatomy. The company has raised roughly $34 million in equity and federal grant funding, including a $3 million NIH grant, and holds FDA 510(k) clearances across its product line.

An implantable echogenic marker paired with automated 3D ultrasound lets untrained staff reliably relocate and measure a specific blood vessel, removing the sonographer skill dependency that normally limits dialysis access monitoring.

Funding

  • EquityFiled Jul 28, 2026Form D
    $3.1M/ $15M

Product

EchoSure

Medical imaging device

A deep-learning-enabled 3D automated ultrasound device that measures volumetric flow rate, diameter and depth of blood vessels marked by the EchoMark implant.

  • Automated 3D ultrasound acquisition
  • Deep-learning measurement of volumetric flow rate, vessel diameter and depth
  • Usable by providers without formal ultrasound training

Built for

Dialysis centers, hospital nephrology departments, and vascular access surgeons and interventionalists managing hemodialysis patients

People on file