| 摘要 |
A device for bone fixation with at least one through hole (5) for receiving bone fixation means, wherein A) the through hole (5) comprises a first through aperture (8) and a second through aperture (9) for insertion of bone fixation means, whereby said second through aperture (9) is smaller in size than the first through aperture (8); B) the region between the two through apertures (8;9) is configured as a resilient element (7), which may be pressed outwardly in the direction of the second through aperture (9) when seen from the inside of the first through aperture (8), by means of which the first through aperture (8) is enlargeable in size and the second through aperture (9) is reducible in size; C) the periphery of the first through aperture (8) comprises at least two circular arcs B1 and B2 with the respective radii R1 and R2 and with the respective centres Z1 and Z2 located at a distance X >= 0 extending transversely to the resilient element (7) whereby the ratio R1 : R2 is in the range between 0,5 and 2,0. |
