The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 2006
Filed:
Mar. 10, 2003
Joseph Francis Keenan, Cohasset, MA (US);
Vadim Mark Daskal, Watertown, MA (US);
James Joseph Hughes, Dracut, MA (US);
Joseph Francis Keenan, Cohasset, MA (US);
Vadim Mark Daskal, Watertown, MA (US);
James Joseph Hughes, Dracut, MA (US);
Becton, Dickinson and Company, Franklin Lakes, NJ (US);
Abstract
A method for manufacturing surgical blades from either a crystalline or poly-crystalline material, preferably in the form of a wafer, 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, laser system, ultrasonic machine, and a hot forge press. The wafers are then placed in an etchant solution 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. Nearly any 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.