| 摘要 |
PROBLEM TO BE SOLVED: To provide tissue scissors for cutting biological tissue whose use leaves the edges of the cut clean and well-sealed while being quite gentle with the surrounding tissue.SOLUTION: The invention relates to tissue scissors (10) with improved stability and improved handling that have two structurally and electrically different branches (11, 12). While the sliding surface (25) of the first branch (11) has a metal-ceramic hard material layer (30), such as, for example, titanium nitride, the second sliding surface (34) of the second branch (12) has an electrically non-conductive ceramic layer (33). The material mating produces great mechanical resistance to abrasion in the bearing (17) and on the cutting edges (28, 35). The second branch (12) can have a cermet body (36) to improve the cooling of the cutting edge (35 (28)) and/or keep it sharp, to prevent heating of the branches (11, 12) during coagulation and sticking of the tissue.SELECTED DRAWING: Figure 1 |
