Patent ID: 9474624
Filing Date: 2016-10-25
CPC Classification: A61F

Claim Text:
1. An intervertebral fusion cage comprising: a front part; first and second side parts connected to both ends of the front part; and a rear part connected to the pair of first and second side parts, wherein the front part, the first and second side parts, and the rear part define fixing holes therein which are vertically opened, the first and second side parts are formed in a taper decreasing from the front part to the rear part, a corner insertion part which is a portion connecting the rear part and the first side part has a smaller thickness than a portion connecting the rear part and the second side part, wherein a front corner part connecting the front part and the second side part has a tool fastening part provided therein, the tool fastening part is formed in one end of a reinforcing tube disposed in the fixing holes between a corner insertion part and the front corner part facing the corner insertion part, the other end of the reinforcing tube contacts the corner insertion part, the corner insertion part has a first wedge seat, and a second wedge seat communicating with the first wedge seat, and a wedge is inserted in the first wedge seat by pressing the wedge through inside of the reinforcing tube, the wedge moves to the second wedge seat to be permanently fixed thereto, such that, a slit formed in the corner insertion part that is expanded in a longitudinal direction thereof to increase an entire height of the corner insertion part in the longitudinal direction thereof.