| 摘要 |
The invention relates to a multimaterial rod for fixing bone fractures, meant to be used in the field of orthopaedic surgery. According to the invention, the multimaterial rod comprises a bone fixing part (1) made of biocompatible Mg alloys, with normal thread at the end towards the other component (2) of the rod, while, at the other end, the thread is pointed, in order for it to penetrate the bone, and a rod-type component (2) made of austenitic stainless steel, having the same diameter as the first component (1) and threaded at one end, the two components (1 and 2) of the rod being assembled by a ceramic sleeve (3) made of alumina or zirconia, which is externally ribbed to be easily screwed in and internally threaded, between the two threads there being a smooth zone meant to prevent the galvanic corrosion generated by putting together the Mg alloy and the austenitic stainless steel. |
