| 摘要 |
A bone support is provided comprising: a hollow elongate rod 10 having trailing and leading ends; said hollow rod being insertable along at least a substantial part of the length of the interior of a bone; an elongate fixing device 14 positioned within said hollow rod 10 , the elongate fixing device 14 having trailing and leading ends, the leading end of said elongate fixing device 14 having a plurality of projections 17, 18, 19 which can be extended out of the rod to engage with bone surrounding the leading end of the rod, thus acting as a bone rotation prevention means; said elongate fixing device being operable from the trailing end of the rod; the leading end of the rod having side apertures 20 ; and the bone support including an end plug 13 having inner and outer ends; the inner end of the plug having inwardly tapered surfaces 26 adjacent to said side apertures 20 which surfaces engage with the projections of the elongate fixing device when the fixing device is moved within the rod, towards the leading end of the rod, engagement of the projections 17, 18, 19 with the tapered surfaces 26 guiding the projections out of said side apertures 20 , and causing the projections to splay outwardly and penetrate bone surrounding the leading end of the rod.
|
