EP 1664384 A4 20100428 - SILICON BLADES FOR SURGICAL AND NON-SURGICAL USE
Title (en)
SILICON BLADES FOR SURGICAL AND NON-SURGICAL USE
Title (de)
SILICIUMKLINGEN FÜR DEN CHIRURGISCHEN UND NICHTCHIRURGISCHEN GEBRAUCH
Title (fr)
LAMES DE SILICIUM POUR UTILISATION CHIRURGICALE ET NON CHIRURGICALE
Publication
Application
Priority
- US 2004030550 W 20040917
- US 50345903 P 20030917
Abstract (en)
[origin: WO2005027729A2] Ophthalmic surgical blades (734) are manufactured from either a crystalline or polycrystalline material, preferably in the form of a wafer. The method comprises preparing the crystalline or polycrystalline wafers by mounting them and machining trenches into the wafers. Methods for machining the trenches, which form the bevel blade surfaces (752), include a diamond blade saw, laser system, ultrasonic machine, a hot forge press and a router. The wafers are then placed in an etchant solution which isotropically etches the wafers in a uniform manner, such that layers of crystalline or polycrystalline material are removed uniformly, producing single, double or multiple bevel blades (734). Nearly any bevel angle can be machined into the wafer which remains after etching. The resulting radii of the blade edges is 5-500 nm, which is the same caliber as a diamond edged blade, but manufactured at a fraction of the cost. The ophthalmic surgical blades can be used for cataract and refractive surgical procedures, as well as microsurgical, biological and non-medical, non-biological purposes.
IPC 8 full level
A61B 17/32 (2006.01); C23F 1/00 (2006.01); A61B 17/00 (2006.01)
IPC 8 main group level
A61B (2006.01)
CPC (source: EP)
A61B 17/3211 (2013.01); B81C 99/0095 (2013.01); A61B 2017/00526 (2013.01); A61B 2017/0088 (2013.01); A61F 9/0133 (2013.01)
Citation (search report)
- [XP] WO 03078091 A1 20030925 - BECTON DICKINSON CO [US]
- [Y] EP 1092515 A1 20010418 - NEWMAN MARTIN H [US]
- [Y] US 5317938 A 19940607 - DE JUAN JR EUGENE [US], et al
- [A] US 5842387 A 19981201 - MARCUS ROBERT B [US], et al
- [A] US 5056227 A 19911015 - KRAMER CAROLYN M [US]
- [A] US 5619889 A 19970415 - JONES GARY W [US], et al
- See references of WO 2005027729A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005027729 A2 20050331; WO 2005027729 A3 20050804; AU 2004273978 A1 20050331; CA 2538164 A1 20050331; CN 101904766 A 20101208; CN 1863940 A 20061115; CN 1863940 B 20100818; EP 1664384 A2 20060607; EP 1664384 A4 20100428; JP 2007505706 A 20070315; MX PA06002875 A 20060605; RU 2006112594 A 20071110; RU 2363771 C2 20090810
DOCDB simple family (application)
US 2004030550 W 20040917; AU 2004273978 A 20040917; CA 2538164 A 20040917; CN 200480029311 A 20040917; CN 201010205949 A 20040917; EP 04784418 A 20040917; JP 2006527068 A 20040917; MX PA06002875 A 20040917; RU 2006112594 A 20040917