| 摘要 |
<p>The surgical screw (10; 10A) comprises: a core (14; 14A) of a bioinert material having mechanical characteristics suitable for the use for which the screw (10; 10A) is intended, the core comprising a shank (16) and a head (18; 18A); a jacket (12) of cortical heterologous bone which dads the shank (16), the jacket having been previously treated for deproteinization and sterilization purposes, and externally presenting the thread (1 1 ) required for the screw (10; 10A); means (13, 17) for making the jacket (12) and core (14; 14A) rotatably rigid with each other at least during the insertion of the surgical screw into the patient's bone.</p> |
