Patent ID: 9549821
Date: 2017-01-24
CPC Classifications: A61F

Claim:
1. A vertebral body spacer to be used by being inserted between vertebral bodies, comprising: at least one block body constituted of titanium or a titanium alloy as a main component thereof, and the block body having a pair of contact surfaces to be made contact with the vertebral bodies, respectively, and wherein the block body includes needle parts each formed into a needle shape having both end portions and a porous part having through holes passing through the porous part in a thickness direction thereof, and a porosity of at least a surface of the porous part is larger than a porosity of each of the needle parts, wherein the needle parts are inserted into the through holes so that the both end portions are projected from the contact surfaces, so that the both end portions exhibit a function of fixing the block body between the vertebral bodies, and wherein the pair of the contact surfaces are offset from one another and disposed on opposite sides of the block body, and wherein each contact surface constitutes substantially a planar surface.