The method comprises providing a medical implant to be coated with a surface, where the implant comprises a powder that comprises a pharmaceutically active substance and/or a bone growth-promoting substance and is provided in a container (4) with an opening, introducing the medical implant in the container through the opening, immersing the surface of the medical implant into a liquid, painting the surface of the medical implant or wetting the surface of the medical implant with the liquid, and contacting the surface of the medical implant with the powder. The method comprises providing a medical implant to be coated with a surface, where the implant comprises a powder that comprises a pharmaceutically active substance and/or a bone growth-promoting substance and is provided in a container (4) with an opening, introducing the medical implant in the container through the opening, immersing the surface of the medical implant into a liquid, painting the surface of the medical implant or wetting the surface of the medical implant with the liquid, contacting the surface of the medical implant with the powder, transferring the power to the surface of the medical implant through contacting such that some of the powder adheres to the surface of the medical implant, pulling the medical implant out of the container after transferring the powder to the surface of the medical implant, sweeping the medical implant over an elastically deformable transfer unit (8), transferring the liquid comprising a pharmaceutically active substance from the transfer unit to the surface of the medical implant while the medical implant is swept over the transfer unit, pushing the medical implant through a membrane that is opened before contacting the medical implant with the powder such that the membrane seals the powder in the container, wiping off some of the powder transferred to the medical implant at a wiper (6) upon pulling the medical implant out of the container, and whirling up the powde
