| 摘要 |
<p>The invention concerns speculum made in one single piece comprising two spacing branches (1, 4) in the shape of a duck-bill, movably pivoting with respect to each other, each of these spacing members being extended by a prehensile element, the speculum further comprising means for blocking the pivoting of the spacing members. The speculum is made in one single piece of plastic material, the two spacing branches (1, 4) being connected by two lateral segments extending in the transversal plane passing by the rear end of the joint face of said spacing branches (1, 4).</p> |
