Although (a) the plate is locked in the cranium, 2 these rails which extend one in order to receive the bone fastener which is suited or the plate which possesses the plural holes and, (b) from both sides where the aforementioned plate opposes facing toward outside and, (being two rod receptacles which include c) respective substance section and the reception section, in order at least for portion and the aforementioned rod and the aforementioned screw thread of each rail to be accommodated inside the aforementioned rod receptacle, the cavity in order the aforementioned itself section demarcates the passage which one side of the aforementioned rail it slides passes, as for the aforementioned reception section to receive the rod and,The set screw and the spiral shellfish the rod receptacle which demarcates the screw thread of the aforementioned cavity top in order to adjust and, the occiput plate system which is included.(a)頭蓋にプレートを固定するのに適した骨留め具を受容するための1つ又は複数の孔を有するプレートと、(b)前記プレートの対向する両側面から外側に向かって延びる2本のレールと、(c)それぞれ本体部及び受容部を含む2つのロッドレセプタクルであって、各レールの少なくとも一部及び前記ロッド及び前記ねじ山が前記ロッドレセプタクルの内部に収容されるように、前記本体部は前記レールの一方がスライド通過する通路を画定し、前記受容部はロッドを受容するための空洞と、止めねじと螺合するための前記空洞上部のねじ山とを画定するロッドレセプタクルと、を含む後頭プレートシステム。
