Title:
超音波ナイフ
Document Type and Number:
Japanese Patent JP2010500073
Kind Code:
A
Abstract:
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.
Inventors:
Escuff, Lewis, Jay
Application Number:
JP2009523359A
Publication Date:
January 07, 2010
Filing Date:
February 01, 2007
Export Citation:
Assignee:
Archon Research, Limited
International Classes:
A61F9/007; A61B18/00
Domestic Patent References:
| JPH03139347A | 1991-06-13 | |||
| JPH04212338A | 1992-08-03 | |||
| JP2003230568A | 2003-08-19 |
Attorney, Agent or Firm:
Patent Business Corporation Sato International Patent Office