| 摘要 |
PROBLEM TO BE SOLVED: To properly position a transplanting body to a drilled hole part by setting the dimension between first and second support surfaces of each of ecarteur arms in such a manner that the ecarteur arms can be inserted to extend two opposed adjacent tissue parts. SOLUTION: A sleeve 12 has first and second openings 16 formed on the outer wall and extended in the longitudinal direction, and the openings 16 are arranged in exactly opposite positions and extended into a collar 18 in the remote end part of the sleeve 12. The sleeve 12 further has ecarteur arms 20 situated in exactly opposite positions, and the ecarteur arms 20 have first and second vertebra support planes 20a, 20b parallel to the vertical axis of the sleeve 12, respectively. The dimensions of the vertebra support planes 20a, 20b are set in such a manner that the ecarteur arms 20 can be inserted to extend two opposed adjacent tissue parts. Thus, a transplanting body can be properly positioned to a drilled hole part. |
