Patent ID: 9277909
Filing Date: 2016-03-08
CPC Classification: A61B

Claim Text:
1. An anchor comprising: a stopper portion, said stopper portion including a first body, said first body including a first bone-interface surface having a first circumferential thread oriented in a first sense, said first body having first and second through-holes therein, said first and second through-holes being disposed in generally parallel spaced relation to one another and substantially parallel to a longitudinal axis of said anchor; a fixing portion, said fixing portion including a second body, said second body including a second bone-interface surface having a second circumferential thread oriented in a second sense opposite said first sense, said second bone interface surface being adapted to interfere with a corresponding region of a patient's bone so as to prevent a premature displacement of said fixing portion from an installed location with respect to said bone, said second body having at least a third through-hole, said third through hole being disposed generally parallel to said longitudinal axis of said anchor; and a locking device, said locking device including a first feature of said first body and a second feature of said second body, said first and second features being adapted to present respective interfering surfaces to one another so as to limit a rotation of said stopper portion with respect to said fixing portion about said longitudinal axis of said anchor.