| 摘要 |
A device for delivering small spheres of biomaterial into a determined portion of a bone including a cylindrical hollow body of inside diameter D 1 having a filling first end and a second end provided with a snap-fastener, a shutter-forming guide rod having a main portion that is cylindrical with an outside diameter D 2 and presenting an enlarged cylindrical portion suitable for co-operating with the snap-fastener of the body, and a piston constituted by a cylindrical part presenting an outside diameter D 3 and an axial bore of diameter D 4 . The diameter D 3 is slightly smaller than the inside diameter D 1 of the body and the inside diameter D 4 is slightly greater than the diameter D 2 of the rod in such a manner that, once the snap-fastener has been released, the rod can slide inside the piston, and the piston can slide inside the body.
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