ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,558,169, issued on Feb. 24, was assigned to Stryker European Operations Ltd. (Carrigtwohill, Ireland).

"Technique for determining a marker arrangement that defines marker positions of a tracker" was invented by Hans Schoepp (Freiburg, Germany) and Fadi Ghanam (Schallstadt, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method, a computer program product, a device, and a surgical navigation system for determining a marker arrangement that defines positions of markers of a tracker are provided. The markers are detectable by a first imaging modality and a second imaging modality that is different from the first imaging modality. The method compri...