| 摘要 |
<p>PROBLEM TO BE SOLVED: To fasten a screw from the inside of mouth even at a narrow lesion such as inside the mouth and to surely prevent the drop of the screw with one hand without using any forceps. SOLUTION: Concerning a screw driver 10 for fastening a screw 30 for fixing an osteo synthesis plate through a driver head 20, this screw driver is provided with a supporting member 1 for preventing the drop of the screw 30 by supporting a head 31 of the screw 30 from the downside when the head 31 is engaged with a top end part 21 of the driver head 20. Then, a screwing supporter 1 freely attachably and detachable has a mounting part 2 for freely attachably and detachably fitting the supporter 1 at a prescribed section of the screw driver 10 and a supporting part 3 for supporting the head 31 from the downside when the head 31 of the screw 30 is engaged with the top end part 21 of the driver head 20.</p> |
