| 摘要 |
<p>The surgical nail (1), in the form of an intramedullary nail, comprises a central axis (2), a longitudinal bore (3) which extends coaxially in relation to the center axis (2) and which has a diameter D, an outer covering (4) having an inner surface (6) and a transversal bore (5) which extends transversally in relation to the center axis (2) having a cross-sectional profile F and a bore axis (8). A construction element (7) which narrows the cross-sectional profile F is provided in the longitudinal bore (3) in the region of the transversal bore (5). As a result, it is possible to eliminate in a risk-free manner the backlash which normally exists between the medullar pivot and the locking screws introduced therein, and improved retention force and an improved guiding effect can be obtained between the locking screw and the intramedullary nail.</p> |
