| 摘要 |
An apparatus and method for applying a substance to a human body includes a hearing device and the substance provided at a surface of said device. The substance can be incorporated into a shell of the hearing device and exhibit controlled migration through said shell and to the surface of the shell. The substance can be antibiotically active and/or antimicrobial agent in the form of a gel, liquid, or paste. The surface can be roughened, structured, or porous.
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