Patent ID: 8771354
Filing Date: 2014-07-08
Classification: A61B,A61C,A61F,A61L

Abstract:
1. A hard-tissue implant comprising: (a) a bulk implant; (b) a face being an exterior surface of the bulk implant; (c) pillars for implantation into a hard tissue, the pillars being distributed on the face, across an area of at least 80 mm (d) slots to be occupied by the hard tissue, the slots being defined by the pillars and each slot having a width of 100 to 10,000 μm as measured along the shortest distance between adjacent pillars; wherein: the hard-tissue implant can provide immediate load transfer upon implantation and prevent stress shielding over time, has a Young's modulus of elasticity of at least 10 GPa, has a ratio of (i) the sum of the volumes of the slots to (ii) the sum of the volumes of the pillars and the volumes of the slots of 0.40:1 to 0.90:1, does not comprise any part that is hollow, and does not comprise any non-pillar part extending to or beyond the distal ends of any of the pillars; the bulk implant is non-porous; and the pillars are non-porous.