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A human middle ear consists of only three small ossicles: the malleus, the incus and the stapes. They create a very complex spatial vibrating system. Sometimes, that system can be damaged then hearing process is disadvantaged. In this case middle ear can be reconstructed with the help of a prosthesis. In this paper, a new idea of shape memory prosthesis which can adjust its length is proposed. The prosthesis is implemented in the fresh human temporal bone specimen, next the measurements of the stapes vibrations by means of the laser Doppler vibrometer are performed. The specimen is placed on a antivibration table inside a sound booth. The ear was stimulated by frequency sweeps from 0,2 to 8 kHz. Finally, the results in the form of transfer function are compared with vibrations of the intact ossicular chain and the middle ear reconstructed by means of classical titanium prosthesis. The research outcomes show usefulness and advantages of the new shape memory prosthesis.