Device for performing osteosynthesis

A bone for device is a bone plate (1), the bone plate (1) with for) of the lower (2) and a on bone (3) and at least one lower (2) with a through hole is (3) is (4), which is composed of a multiple shaft to swing seat (10) for bone screw (20) is; the through hole (4) with a central shaft (5), the bone device is further - comprising for is capable of inserting the through hole (4) is (10), and has for holding the bone screw (20) has a longitudinal axis (12)Centre hole (11) and is connected with the external outer surface of the through hole (4) contact (17). The inserting (10) of the radial direction and radial direction; the through hole (4) is arranged in the middle shaft (5) section (6) is a non-circular. Insertion (10) is (16) with one longitudinal axis (12) section with the bone plate (1) through hole (4) section (6) on the same shape, and is inserted through hole (4) is (10) cannot are opposite wherein longitudinal axis (12) is, and can still in the through hole (4) is to bone plate (1) inserted.