Large Atrial Thrombus Percutaneously Removed Using the ŌNŌ Retrieval System ŌNŌCOR Reports First-In-Human Use for Removal of an Atrial Blood Clot PHILADELPHIA, Aug. 25, 2022 (GLOBE NEWSWIRE) -- ŌNŌCOR LLC announced the use of the ŌNŌ endovascular retrieval system to remove a large central-line-associated thrombus from the right atrium in a...