ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,374, issued on Nov. 4, was assigned to ADEOR MEDICAL AG (Valley, Germany).
"Perforator" was invented by Johann Fersterer (Valley, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A perforator for drilling bone tissue has: a drive shaft with a rotational axis A; an inner cutting head with the same rotational axis A; a drive surface provided on the drive shaft; and a connector provided on the inner cutting head. The inner cutting head is displaceable with respect to the drive shaft along the rotational axis between a distal position, in which the inner cutting head is not driveable by the drive shaft, and a proximal position, in which the drive s...