Hybrid composite interbody fusion device

An interbody fusion device comprising:

• a) a non-resorbable support having an outer surface, the support having an osteoconductive pore passing therethrough and opening onto at least two openings on the outer surface, and
• a first bioresorbable layer comprising a polymer, the layer contacting the support and extending beyond the outer surface of the support, wherein the first bioresorbable layer has a thickness TH of at least 100 μm.

An interbody fusion device comprising:

• a) a non-resorbable support having an outer surface, the support having an osteoconductive pore passing therethrough and opening onto at least two openings on the outer surface, the pore defining an inner surface of the support, and
• b) a first bioresorbable layer contacting the inner surface of the support and extending beyond the outer surface of the support,
• wherein the contact of the bioresorbable layer upon the inner surface does not occlude at least two of the at least two openings at the outer surface, and wherein the first bioresorbable layer has a thickness TH of at least 100 μm.

An interbody fusion device comprising:

• a) a non-resorbable support having an outer surface and an upper surface, the support having an osteoconductive pore passing therethrough and opening onto at least two openings on the outer surface, and
• b) at least one wall disposed upon the outer surface of the support and extending above the upper surface to form a reservoir upon the upper surface,
• wherein the first bioresorbable layer has a thickness TH of at least 100 μm.