| 摘要 |
<p>A percutaneous surgical tool comprises a cannula with an open slot at the distal end and a closed tip. A variety of articulated and solid tamps with different tip geometries are used to push bone aside to open up a void for filling. Bone pellets are rammed down the hollow interior, lumen, of the cannula by a tamper. A ramp inside the closed end causes the bone pellets to eject out to the side into a void to-be-filled. Variations in the shapes of the pellets and the ends of the tampers vary the orientations of the pellets as they are ejected through the end slot out from the cannula. One tamper with a sharp flat diagonal cut end can be twisted to push the rear end of the pellet harder sideways and out parallel to the cannula. Curved cannulas allow better access to all parts of the void to-be-filled.</p> |
