公开(公告)号：EP1490191A4

公开(公告)日：2006-09-06

申请号：EP03744621

申请日：2003-03-10

申请人： BECTON DICKINSON CO

发明人： KEENAN JOSEPH ,  DASKAL VADIM ,  HUGHES JAMES

IPC分类号： A61B17/3211 ,  A61B17/00 ,  A61B17/32 ,  B21K11/00 ,  B21K11/02 ,  B23K26/38 ,  B23K26/40 ,  B28D5/02 ,  C03C25/00 ,  C23C30/00 ,  C23F1/12 ,  C23F1/24

CPC分类号： A61B17/3211 ,  A61B17/32 ,  A61B2017/00526 ,  B28D5/022

摘要： A method for manufacturing surgical blades (2402) from either a crystalline or poly-crystalline material, preferably in the form of a wafer (202), is disclosed. The method includes preparing the crystalline or poly-crystalline wafers by mounting them and machining trenches into the wafers. The methods for machining the trenches, which form the bevel blade surfaces, include a diamond blade saw (502, 504, 506, 508), laser system (900), ultrasonic machine (100), and a hot forge press (1052, 1054). The wafers are placed in an etchant solution (1402) which isotropically etches the wafers in a uniform manner, such that layers of crystalline or poly-crystalline material are removed uniformly, producing single or double bevel blades (20A-G). Nearly any angle can be machined into the wafer which remains after etching. The resulting radii of the blade edges is 5-500 nm, this is equivalent to a diamond edged blade manufactured at a fraction of the cost.