| 摘要 |
<p>Internal bone fixator is device for internal fixation of bone fragments. Its components are: bar (5), clamps (4) with corresponding screws (3) or clamps (2) with corresponding screw (1) and screws (56) for holes (28) and slot (30). The bar (5) has slot on one end (30) along the long axis of the bar for the screw (3 or 56) which is screwed into the bone (33A), whereby by its smooth neck (17) and, or, by its flattened lower surface of the head (15), sitting on the flattened part of the bar (29), prevents rotation of the bar (5) in relation to the screw (3A), preventing so dislocation of the bone fragments (33A and 33B) in relation to each other, but allows telescoping of the bar (52) along its long axis and so axial movements of bone fragments (33A, 33B), producing so axial compression on the fracture area (34). On the other end bar (5) has hole for antirotation screw (56). Bar (50) has extension (32) with 2 or more parallel canales which axis's a, b, c are parallel to the long axis of the neck of the bone (femur for example) while long axis of the bar (5), after application to long bone is parallel with long axis of that long bone.</p> |
