Systems, devices, and methods for removing plaque from a patients vasculature are disclosed. In one example, a medical article includes a catheter body and a dissection tip. The dissection tip can move between at least a first position and a second position and can be biased to expand radially from a longitudinal axis of the medical article when the dissection tip is moved from the first position to the second position. In one example, a dissection member includes a dissection tip, a receiving space, and a severing element, such as, for example a thrombus-breaking element. The dissection tip can radially adjust to circumferentially maneuver between a core of plaque or a blood clot and a patients vasculature. The receiving space can receive the plaque or clot that passes within the dissection tip. The severing element can at least partially sever or break apart the plaque or clot.
