Patent ID: 7238209

Claim:
A bone replacement, comprising: a plurality of bone-replacement pellets configured to be introduced into a hollow passage of an instrument that introduces the pellets into a cavity of a vertebral body, each pellet being defined by a plurality of surfaces including a pair of opposite non-adjoined surfaces that are inclined with respect to each other at a predetermined angle, and an inclined surface of a first pellet facing an adjacent second pellet when the pellets are introduced into the hollow passage of the instrument, wherein the pellets are configured to be ejected from the hollow passage in multiple directions and to be introduced into the cavity of the vertebral body as a bone replacement material, and wherein each of the plurality of bone-replacement pellets are formed free of a through hole being provided therethrough, and wherein each of the plurality of bone-replacement pellets are configured to be pushed into a vertebral body using an ejector bar of the instrument after being placed into the hollow passage of the instrument.