SELF-LOCKING HEAD PLATE FOR AN AUDITORY OSSICLE PROSTHESIS

摘要

A head plate (10) for an auditory ossicle prosthesis is characterized in that a web (12) with a through-bore (14) and with a slot (15) for laterally inserting the shaft-shaped end of a connecting element as a monolithic lever system and a first long lever portion ( 12.1) extending from the first point of application (12a) of the web on an annular region (11) of the head plate to a side of a common bending joint (16) in the web, from the other side a second long lever portion (12.2) to the second point (12b ) of the web runs on the annular region, that in the web a first short lever portion (12.1 ') of lesser length than the first long lever portion and a second short lever portion (12.2') are provided with lesser length than the second long lever portion, the first short Lever portion from the connection point of the first long lever portion with the bending joint to a first n side of the slot and the second short lever portion extending from the connection point of the second long lever portion with the bending joint to a second side of the slot, and that the first point of attack of the web on the ring area, the common bending joint and the second point of the web on the ring area non-collinear are arranged so that actuated by actuation of the first and second long lever portion via the common bending joint of the first and second short lever portion.