| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a medical cutting tool, which can recover chips produced by the cutting action, thereby enabling a hole to be made for inserting an implant stably therethrough. <P>SOLUTION: This medical cutting tool is provided with a supporting member 1 and a cutting member 2. The cutting member 2 has a cutting portion 21 formed at one end portion of a cylindrical body portion 20, and the cutting portion 21 has cutting edges 23 extended radially from the center axis of the body portion 20 toward the outer circumference. A center tip portion 24 is provided consecutively from the central portion, in which the cutting edges 23 are formed, and outer circumference tip portions 25 are formed at the outer circumference end portion. Between the cutting edges 23, inclined side faces 23b and side faces 23a of the adjoining cutting edges 23 are formed to intersect in valley shapes, in which inlet portions 26 are so individually formed in the valley-shaped portions as to communicate with the inside of the body portion 20. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
