ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,419,620, issued on Sept. 23, was assigned to Argon Medical Devices Inc. (Athens, Texas).
"Core-severing cannula for biopsy devices" was invented by Matthew Mobley (Athens, Texas), Venkata Ramana Hogirala (Athens, Texas) and Joe Cotten (Athens, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A core-severing cannula for use with tissue biopsy devices, comprising a plurality of flexible fingers for severing a tissue core. The core-severing cannula is positioned coaxially outside of a core-cutting cannula, and is slidable relative to the core-cutting cannula. As the device is activated, the core cutting cannula and core-severing cannula advance togeth...