FDA cleared TriSalus Life Sciences' TriNav Advance on September 23. It joins the TriNav Infusion System, the TriNav Infusion System LV and the Pancreatic Retrograde Venous Infusion System in the company's Pressure-Enabled Drug Delivery line.

The device runs two ways. In telescoping mode it takes a compatible delivery microcatheter to reach small distal vessels in tortuous anatomy. In high-flow mode it infuses through its own large lumen. The clearance covers liver embolization and a broader set of embolization procedures.

CEO Mary Szela said a limited market release starts in the coming weeks. TriSalus trades on Nasdaq as TLSI and is based in Westminster, Colorado. Adding configurations to an already cleared platform is the least expensive way to widen a label, which is what makes the first predicate worth getting right.