| 摘要 |
<p>Femoral neck of the removable type 1 with stem 2 for hip prostheses, engaging in a complementary manner with a cavity of the stem 2 and provided with two lugs 5, 5a which are oriented and positioned so that by inserting an extractor with two prongs having walls converging towards said lugs, the said walls bear against the surface of each lug and the upper surface of the stem 2, exerting, as a result of the inclined-plane effect, a thrust F having a direction parallel to the axis of the cavity able to cause disengagement of the removable neck 1 from the stem 2.</p> |
