| 摘要 |
<p>Stable Dynamic Axial Fixator is a ball-socket type, monoarticulated which can be cancelled for the stability, external fixator used in orthopaedic and traumatological surgery. This fixator was designed for a new and unique application technique which increases the stability and also minimise the need of X-ray usage. The additional advantages were superposition of fixator on X-ray image was minimised, the risk of loosening of the pin was also minised by decreasing the weight, and hospitalisation time was reduced. To increase the stability of the articulation, 'body contact of the clamp' was achieved at the final position of the application and also the surgeon can cancel the articulation (if not need) by sliding the clamp on the articulation globe (13). Secondly to increase the stability the height of the eccentric pin was reduced. By this way the load arm can be shortened, thus the surgeon can fix the articulation globe (13) with more force, which increases the stability. The polyplanar clamp can fix the fragments in different combination and in different angle without using articulation. Also it can translate the fragments of the bone. By the means of new distraction-compressing unit the surgeon and the patient can easily distract or compress the fragments of the bone only by turing the extension nut (7) in one direction up click sound was heard. No other work is needed to stabilise or anything else. So adaptation time of the patient and the hospitalisation time was reduced.</p> |
