Figure 2.

STAMP plates generated from the patient’s CT scan bony surface characteristic data: (A, C) BB-STAMP plate; (B, D) C-STAMP plate. Since this BB-STAMP plate (guide plate) fits only at one place, the big circle can be the guide hole leading to the correct place to make a bony hollow, while small circles indicate the appropriate places for screws. The C-STAMP plate (confirmation plate) can certify the correct size and place of the bed for the BC-FMT: (A, B) surface view; (C, D) back view). BB, Bonebridge; BC-FMT, bone conduction-floating mass transducer; C-STAMP, the C-STAMP can check whether the hole is an appropriate size for the BC-FMT.