ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,308, issued on Aug. 12, was assigned to BIEDERMANN TECHNOLOGIES GMBH & Co. KG (Donaueschingen, Germany).
"Coupling device and instrument for connecting the coupling device to a head of a bone anchor" was invented by Timo Biedermann (Trossingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A coupling device includes a receiving part having a head receiving portion for pivotably receiving a head of a bone anchor and a rod receiving portion defining a recess for receiving the rod, the rod receiving portion having an engagement structure for engaging a locking member to lock the rod in the recess and a first engagement surface different from t...