ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,279, issued on May 6, was assigned to AVANTEC VASCULAR Corp. (Sunnyvale, Calif.).

"Hybrid atherectomy devices" was invented by John To (Sunnyvale, Calif.) and Paul Escudero (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Telescoping, self-driving, and laterally-pushing atherectomy devices are provided, each having a flexible sheath, a cutter with helical flutes, and a drive assembly. The drive assembly can have a flexible driveshaft rotatably translational with the lumen of the flexible sheath, a positive displacement pump to transport cut tissue, and a flexible drive shaft that can be longer than the flexible sheath for a reversib...