PROBLEM TO BE SOLVED: To provide a drill guide capable of forming a bone hole for connecting a plurality of bone holes bored in a living bone, between the plurality of bone holes in a same direction as that of the plurality of bone holes by accurately guiding a drill to a site between the plurality of bone holes without axial runout.SOLUTION: The drill guide includes: a body 1a in which a drill insertion hole 1c is formed and a plurality of protrusions 1b and 1b to be inserted into a plurality of bone holes. The protrusions protrude forward from the body in parallel to a central line direction of the drill insertion hole, and a virtual drill insertion hole 1f formed by extending the drill insertion hole of the body is formed between the protrusions by notching a facing part of the protrusions, in parallel to the central line direction of the protrusions. Length Lf or Lc of at least one of the drill insertion hole and the virtual drill insertion hole is 5 mm or more. The drill guide can guide the drill between the bone holes so as to reliably inhibit the axial runout, while supporting the drill by the inner face of the drill insertion hole and both-side protrusions of the virtual drill insertion hole.COPYRIGHT: (C)2015,JPO&INPIT【課題】生体骨に穿孔された複数の骨孔の間に、複数の骨孔を連結する骨孔を複数の骨孔と同じ方向に形成できるように、ドリルを軸振れなく正確に複数の骨孔の間に案内することができるドリルガイドを提供する。【解決手段】ドリル挿通孔1cが形成された本体1aと、複数の骨孔に挿入される複数の突出部1b,1bを有し、突出部は本体から前方に向かってドリル挿通孔の中心線方向と平行に突設されており、突出部の相互間には本体のドリル挿通孔を延長した仮想ドリル挿通孔1fが突出部の対向部分を切り欠いて突出部の中心線方向と平行に形成されており、ドリル挿通孔と仮想ドリル挿通孔の少なくとも一方の長さLf又はLcが5mm以上である構成とする。ドリル挿通孔の内面と仮想ドリル挿通孔の両側の突出部によってドリルをサポートしながらドリルの軸振れを確実に抑えて骨孔の間に案内できる。【選択図】図4
