| 摘要 |
A material removal apparatus for removing a material from a surface is provided. The material removal apparatus comprises a frame having distal and proximal frame portions, the proximal frame portion comprising a handle. A tool shaft is slidably mounted to the frame, the tool shaft having proximal and distal shaft ends and a longitudinal shaft axis. The tool shaft is movable between a first shaft position and a second shaft position distal to the first position. A tool head attached to the distal shaft end is adapted for engaging the material to be removed. The material removal apparatus also comprises an impulse delivery arrangement attached to the frame. The impulse delivery arrangement is adapted for selectively applying a discrete impulsive force to the proximal shaft end.
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