| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drilling device having simple configuration, and being less likely to cause errors in a drilling direction even when bone density of a cancellous bone to be drilled is non-uniform. <P>SOLUTION: The drilling device BE1 includes a drill DR having a central hole 41e drilled from a front end 41a along a rotation axis C and a guide pin GP inserted in the central hole 41e from the front end 41a, wherein the drilling direction thereof is determined by the guide pin GP embedded either in an embedding hole HO drilled by a pilot hole drilling device or an embedding hole HN drilled by the drill DR in one previous step. <P>COPYRIGHT: (C)2013,JPO&INPIT |
