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:
Aug. 28, 2018
Filed:
Jan. 21, 2014
Kaneka Corporation, Osaka-shi, Osaka, JP;
Kohei Fukaya, Osaka, JP;
Hidekazu Miyauchi, Settsu, JP;
Mariko Matsumoto, Settsu, JP;
Chihiro Koga, Settsu, JP;
KANEKA CORPORATION, Osaka-shi, JP;
Abstract
A lacrimal duct tube including: a pair of tubular members each of which has an terminal end opening at one end; and a central member that connects other ends of the tubular members, at least one of the tubular members includes: a cylindrical part extended from the terminal end opening to the central member side and has an opening for bar-like operative instrument at an end portion at the central member side; and an arc-shaped part that is extended from the end portion of the cylindrical part at the central member side further to the central member side and has an almost arc-shaped wall portion on a cross section orthogonal to a longitudinal side of the tubular member, and the almost arc-shaped wall portion is formed at the arc-shaped part continuously over a length of ⅓ or more and 9/10 or less of an entire length of the tubular member.