JP2017213262A5

JP2017213262A5 -

Info

Publication number: JP2017213262A5
Application number: JP2016110074A
Authority: JP
Filing date: 2016-06-01
Publication date: 2018-07-12
Anticipated expiration: 2036-06-01

Description

すなわち、請求項１に記載の骨固定装置（Ｓ）は、上部内壁面に円弧状に形成された鉛直方向に延びるネジ孔（２７）を有し、上方からロッド（７）を受け入れ可能に開いたＵ字状の側壁（２３、２３）を具備し、前記ネジ孔に閉塞体（１５）を取り付けて前記ロッドを保持する第１の空間（２１）を有する基部（２０）と、前記基部から下方に延び、前記基部の下端と協働して骨要素を受け入れ可能な第２の空間（３１）を有するフック（３０）と、前記基部に形成され鉛直方向に延びて前記第１の空間と前記第２の空間を連絡する貫通孔（５１）に移動可能に取り付けられる軸（４５）と、前記軸に取り付けられ前記軸の下端面よりも広い面積を有し前記第２の空間に配置されて、前記フックの一部と協働して前記第２の空間に受け入れられる骨要素を挟持する本体（４２）と、を具備する挟持体（４０）と、を備え、前記貫通孔の軸は、前記溝孔の軸よりも前記フックの反対側に配置されていることを特徴とする。 That is, the bone anchoring device (S) according to claim 1 has a screw hole (27) formed in an arc shape on the inner wall surface of the upper portion and extending in the vertical direction so that the rod (7) can be received from above. comprising a U-shaped side walls (23, 23) of said first base having a space (21) to the threaded holes in the closure (15) attached to hold the rod (20), from said base portion A hook (30) extending downward and having a second space (31) capable of receiving a bone element in cooperation with a lower end of the base; and a first space formed in the base and extending vertically. A shaft (45) that is movably attached to a through hole (51) that communicates with the second space, and that is attached to the shaft and has a larger area than the lower end surface of the shaft, and is disposed in the second space. Te, received in said second space in cooperation with a portion of the hook A body (42) for holding the bone elements, a Kyojitai (40) having a, wherein the axis of the through hole, it is located on the opposite side of the hook than the shaft of the groove hole It is characterized by.

また、請求項２に記載の骨固定装置は、請求項１に記載の骨固定装置において、前記本体は傾斜可能に前記軸に取り付けられていることを特徴とする。 The bone fixation device according to claim 2 is characterized in that in the bone fixation device according to claim 1, the main body is attached to the shaft so as to be tiltable.

また、請求項３に記載の骨固定装置は、請求項１又は請求項２に記載の骨固定装置において、前記本体の一部は、前記フックの反対側に有する前記基部の一端よりも突出していることを特徴とする。 The bone anchoring device according to claim 3 is the bone anchoring device according to claim 1 or 2, wherein a part of the main body protrudes from one end of the base portion on the opposite side of the hook. and said that you are.

また、請求項４に記載の骨固定装置は、請求項１〜３のいずれか一項に記載の骨固定装置において、前記フックの先端は上昇していることを特徴とする。
また、請求項５に記載の骨固定装置は、請求項２に記載の骨固定装置において、前記本体は、前記軸に隙間を有して取り付けられ、この隙間による取付上のガタによって傾斜可能であることを特徴とする。 The bone fixation device according to claim 4 is the bone fixation device according to any one of claims 1 to 3, wherein a tip of the hook is raised .
The bone anchoring device according to claim 5 is the bone anchoring device according to claim 2, wherein the main body is mounted with a gap on the shaft, and can be tilted by play on the mounting by the gap. characterized in that there.

Claims

The upper inner wall surface has a vertically extending screw hole formed in an arc shape, and has a U-shaped side wall that is open to accept the rod from above . A base having a first space to hold;
A hook having a second space extending downward from the base and capable of receiving a bone element in cooperation with a lower end of the base;
A shaft that is formed in the base and extends in the vertical direction and is movably attached to a through hole that connects the first space and the second space, and has a larger area than the lower end surface of the shaft that is attached to the shaft. is arranged a second space, and a holding member comprising a body and for holding the bone elements are partially in cooperation with et received in said second space of said hook,
The bone fixing device , wherein the shaft of the through hole is disposed on the opposite side of the hook from the shaft of the screw hole .

The bone fixing device according to claim 1, wherein the main body is attached to the shaft so as to be inclined.

3. The bone fixing device according to claim 1, wherein a part of the main body protrudes from one end of the base portion on the opposite side of the hook.

The bone anchoring device according to any one of claims 1 to 3, wherein a tip of the hook is raised.

The bone fixing device according to claim 2, wherein the main body is attached to the shaft with a gap, and can be tilted by looseness on attachment by the gap.