| 摘要 |
<p>The present surgical instrument is composed of a single wire (2) (of biocompatible material) and a single soldering (3), and uses the general principle of springs. It is structured in such a way to reproduce two geometrical figures: a complete circle (4) at the lower end and a semicircle (5) at the upper end. The two structures are connected by a connection rod (6), which is situated in the centre of the two geometrical figures. The upper end of the semicircle (4) is not soldered and is structured in such a way to minimise the elongation of the spring. The aforementioned surgical spring (1) is used in neurosurgery, in particular in the final phase of craniectomy. The positioning of at least three springs (1) on the borders of craniectomy allows to position, contain and hold the cranial operculum removed during craniectomy.</p> |
