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:
Mar. 30, 2004
Filed:
Oct. 05, 2001
Gary T. Garman, La Verne, CA (US);
Ormco Corporation, Orange, CA (US);
Abstract
An endodontic instrument and method of manufacturing an instrument including an elongate member having a longitudinal axis, a proximal end, a distal end and a working length between the proximal and distal ends. The working length is formed with a plurality of surface portions ground from the outer surface thereof along paths extending along the longitudinal axis. One or more edges formed during the initial grinding operations are then at least partially ground down. The ground blank is then physically twisted to form helical cutting and/or debris removal edges extending around the longitudinal axis. The instrument may be a file or reamer used in root canal procedures and may have three, four or more longitudinally extending surface portions and multiple edges. Flexibility of the instrument may also be easily varied according to the invention.