ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,220,281, issued on Feb. 11, was assigned to MAKO Surgical Corp. (Weston, Fla.).

"Ultrasound bone registration with learning-based segmentation and sound speed calibration" was invented by Jose Luis Moctezuma de la Barrera (Freiburg, Germany), Mehrdad Salehi (Munich), Raphael Prevost (Munich) and Wolfgang Wein (Munich).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for calibrating ultrasound imaging directed towards a bone region. An ultrasound imaging device generates a first steered frame and a second steered frame, wherein the first steered frame and the second steered frame are directed towards the bone region at different angles f...