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Lumius

Hiring

Lumius is a YC Spring 2026 (P26) company. Based in Durham, NC, USA. Team of 4.

About Lumius

GPAgent's own fund-neutral profile, written from public information. Updated Oct 4, 2026.

Summary

Lumius builds real-time 3D ultrasound devices for clinical use, starting with vascular access procedures such as central line placement. Standard 2D ultrasound forces clinicians to mentally reconstruct anatomy while manipulating a probe, a cognitive load that drives high first-attempt failure rates, especially among beginners. Lumius replaces that guesswork with a wide field-of-view, AI-assisted 3D spatial view at a fraction of the cost of existing matrix-array probes.

Go-to-market

The initial customer is hospitals and clinical teams performing vascular access, reached through direct outreach and demo bookings via the company's website.

From the Y Combinator listing

How Lumius describes itself in Y Combinator's public directory.

Fast, smart, accessible 3D ultrasound that anyone can use

Ultrasound today is still mostly 2D. Clinicians have to imagine the 3D anatomy in their head while also moving the probe at the same time. This makes procedures like vascular access hard to learn and perform consistently, especially for beginners. ~50% fail on their first attempt. Hospitals also spend millions each year on 2D ultrasound training. Meanwhile, existing 3D ultrasound devices can cost >10× as much. Lumius is building fast, smart, and accessible 3D ultrasound systems to eliminate this 2D guesswork. Our technology shows a clear, real-time 3D view of what’s inside the body. It works over a large volume, not just a thin slice. The device is also affordable, compact, and portable. We are starting with vascular access, especially central line. Future use cases include blood clot detection, tumor diagnosis, and biopsy guidance. Our long-term vision is a universal 3D ultrasound platform that brings easy-to-use, real-time imaging to a wide range of clinical and eventually consumer applications.

Facts

Industry
Healthcare / Healthcare -> Medical Devices
Location
Durham, NC, USA
Team size
4
Status
Active
Stage
Early

Founders (3)

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