Nellix Endovascular, a Palo Alto, Calif., medical-device maker, raised $6.5 million in a third funding round, I’ve learned. The startup is developing a new treatment for repairing blood-vessel flaws in the chest and abdomen.

Those flaws, known as aneurysms, are thin-walled “bubbles” in blood vessels that can rupture on short notice, often fatally. The Nellix device and treatment apparently injects some form of goop into these aneurysms, filling and sealing them in order to prevent rupture.

Investors in the round included >Essex Woodlands Health Ventures and Incept.