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    • 2. 发明授权
    • ULTRASONIC KNIFE
    • EP2056754B1
    • 2018-08-15
    • EP07705593.7
    • 2007-02-01
    • Alcon Research, Ltd.
    • ESCAF, Luis, J.
    • A61F9/007A61F9/013A61B17/32A61M1/00
    • A61F9/00745A61B2017/320078
    • An ophthalmologic cutting device having a base support section for attachment with a movement generating device and a tip with a blade section. The blade section preferably has upper and lower edges, and a forward aspiration free edge extending between them, with the upper edge having a shorter longitudinal length compared with the lower edge and where the forward edge slopes down from a distal end of the upper edge to a distal end of the lower edge, and the lower edge presenting a material contact surface that is thinner in thickness than the upper edge. A slope back in the proximal direction of the forward edge of, for example, 10 to 45 degrees with a straight and/or curving forward edge or a combination of a straight and forward edge sections is preferred. Embodiments of the blade include a blade converging in thickness from top to bottom and one having a curved upper forward edge region and one with a lower edge that has a distal straight section and a recessed section positioned proximal of said distal straight section. The forward edge is also preferably defined by longitudinally diverging, opposing side walls.