Bone connecting tool and connecting member thereof

摘要

In a bone connecting tool comprising a rod connecting member 5 attachable to an arch of vertebrae 3 in a corpus vertebrae 1, and a rod member 9 having a rod portion 7 freely fixed to the rod connecting member 5, wherein a projection portion 23 for eating into the arch of vertebrae 3 is provided in a second hook portion 13 provided in the rod connecting member 5, the rod member 9 is provided with a processus spinosus 27 in the corpus vertebrae 1 or a first hook portion 25 freely hooked to the arch of vertebrae 3 in one end portion thereof, and a projection portion 29 for eating into the processus spinosus 27 or the arch of vertebrae 3 is provided in the first hook portion 25 The rod member 9 and 31 are formed in a substantially J shape or a substantially V shape, and a projection portion 37 eating into the processes spinosus 27 is provided inside a bent portion 35.