Patent ID: 7500992

Claim:
A distractable body augmenter capable of being planted through a pedicle of a vertebra for vertebral body reconstruction, comprising: an upper planted block, the upper planted block having an insertion portion projecting down from a lower side of an uppermost portion thereof and having a screw hole on a front end thereof; a lower planted block fitted on the upper planted block, the lower planted block having a holding cavity between two lateral portions thereof, the upper planted block being fitted in the holding cavity at the insertion portion thereof; and a wedge-shaped bar having a screw hole on a front end thereof, the wedge-shaped bar being inserted between a lower end of the insertion portion and an upper side of a bottom of the lower planted block for causing longitudinal displacement of the upper and the lower planted blocks after the planted blocks together have been planted in a vertebra via a planting hole of a pedicle of the vertebra, wherein the insertion portion of the upper planted block has longitudinal fitting trenches on two sides of a front end and a rear end thereof while the lower planted block has an inverted T-shaped gap at a front end thereof, and an U-shaped gap at a rear end thereof, the front and the rear ends of the insertion portion being respectively fitted in the inverted T-shaped gap and the U-shaped gap of the lower planted block.