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:
Oct. 15, 2019
Filed:
Aug. 01, 2013
Applicants:
Hyeong Woo Kim, Seongnam-si, KR;
Gyun Hwan Kim, Goyang-si, KR;
Sun Young Kim, Goyang-si, KR;
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C 5/00 (2017.01); A61C 5/48 (2017.01); A61C 5/42 (2017.01);
U.S. Cl.
CPC ...
A61C 5/48 (2017.02); A61C 5/42 (2017.02);
Abstract
An endo file for dental endodontic treatment includes: a head portion inserted into and detachably coupled to a hand piece; a tissue removing portion inserted, from the lower side of the head piece, into a patient's root canal for removing the nerve of a tooth; and a stress dispersion portion provided between the head portion and the tissue removing portion and having at least one horizontal penetration hole so as to buffer stress concentration generated during the rotation of the endo file, and to minimize endo file breakage.