Tool for drilling bone tissue that is particularly suitable for performing sinus lifts by the Summers technique or particularly for the installation of specially short implants
Tool for drilling bone tissue, which has the advantage of having a cutting tip with a flat effective shape that prevents perforation of the Schneider membrane or injury to the dental nerve when drilling close to them. The tool is disposed along an longitudinal axis (7) and comprises a non-cutting main body (1), a narrowed area (2) for retaining bone and a cutting tip (3), which comprises cutting blades (4), each one of which is provided with a front cutting edge (5) substantially perpendicular to the longitudinal axis (7) and a substantially lateral cutting edge (6) that forms an angle of between 0 and 10° with the longitudinal axis (7). Spaces (9) for receiving bone are disposed between the cutting blades (4) and are connected to the narrowed area (2).本発明は、骨組織を粉砕するためのツールに関し、このツールは、シュナイダー膜や歯神経の近くで粉砕を実施するときにシュナイダー膜に穴をあけることや歯神経を傷つけることを防止する平坦な有効形状を有する切断先端部を有するという利点を有する。ツールは、長手方向の軸線７に沿って配置され、切断用ではない主本体部１、骨を保持するために成形された領域２、及び切断先端部３を有し、前記領域は複数の切断刃４を有し、各切断刃４が、長手方向の軸線７に実質的に垂直な前方刃先５、及び実質的に長手方向の軸線７と０～１０°の間の角度を形成する側方刃先６を備える。骨を受け入れるための空間が切断刃４の間に作成され、この空間は成形された領域２に通じている。
