ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,427, issued on March 3, was assigned to BIEDERMANN TECHNOLOGIES GMBH & Co. KG (Donaueschingen, Germany).
"Polyaxial bone anchoring device" was invented by Lutz Biedermann (VS-Villingen, Germany) and Bernd Fischer (Braunlingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A polyaxial bone anchoring device includes a bone anchoring element having a head, a receiving part having a channel for receiving a rod and an accommodation space for pivotably holding the head, and a pressure member having a pressure exerting surface and a deformable portion with a free end. The deformable portion is adjustable from a first configuration where a first pa...