Tool for to ask the soft tissue in the case of a surgical intervention on the maxillary sinus

摘要

Tool (2) the of the soft tissue in the case of a surgical intervention on the maxillary sinus, in particular a a wound retractor, comprising a curved functional surface (6) with a concave upper side (8), wherein a in the use of bone-side edge side (10) of the functional surface (6) a recess (12) with two at an angle (α) to each other edge part regions (14a, 14b), and which, in the region of the indentation (12) a mandrel (16) is arranged.