In this presentation, we will show the latest advances in the context of the European H2020 Horizon project LaserImplant. Functionalized surfaces by ultrashort laser texturing were developed with the aim of improving the biocompatibility and efficiency of medical screws. Both osteoblast cell repellent surfaces as well as surfaces promoting osteogenesis were studied and characterized by bone cells’ growth and wettability tests.
Beam delivery strategies were anticipated for future industrial requirements. Compromises had to be found to implement different textures in one unique solution. Targeted processing times as well as quality robustness were at stake for complex cylindrical shapes with multiple dimensions. Upscaling experiments put in evidence thermal effects due to energy deposition acceleration. Solutions were finally found to overcome speed limitations by selecting dedicated optical systems together with adapted synchronized processes.
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