| 摘要 |
<p>The surgical device is formed from four bars of synthetic material, hinged so that they can move and swing with respect to each other, forming a geometrical parallelogram, which together with the specifically controlled movement of one of these, constructed telescopically with its end at all times stably housed in a space in the teeth incorporated in the other corresponding bar angularly opposite to it give rise in their movement and controlled swinging to a varied range of protected surfaces of required dimensions and shape available for the work of the surgeon in the isolated human tissue of interest. <IMAGE></p> |
