Coronary Flowprobes are specifically designed for CABG patency assessment. These Flowprobes feature an extended handle that allows the surgeon to measure flow in hard-to-reach coronary bypass grafts behind the heart, a flexible neck to optimally position the Flowprobes around a graft, and a J-shaped reflector to hold a graft within the non-constrictive sensing window to provide an undistorted flow waveform, critical for graft patency assessment.