| 摘要 |
<p>The invention relates to an improved hip prosthesis wherein the femoral prosthesis oscillates about un axis inclined at 20° to the horizontal, characterized in that such oscillation is provided inside the head of the femoral prosthesis (1) by means of a double roller bearing comprising a row of rollers (2) which support the radial loads and a row of balls (3) which support the axial loads.</p> |
