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:
May. 25, 2021
Filed:
May. 27, 2017
Shenzhen Superline Technology Co., Ltd, Shenzhen, CN;
Zhong Wang, Shenzhen, CN;
Jinsong Zhou, Shenzhen, CN;
SHENZHEN SUPERLINE TECHNOLOGY CO., LTD, Shenzhen, CN;
Abstract
A NiTi alloy root canal file with a flexibility gradient includes a tip segment (F), a middle segment (F) and a root segment (F) divided along the axis of the NiTi alloy root canal file with the flexibility gradient. The internal microstructure of the tip segment (F) of the root canal file is martensite M-phase, the internal microstructure of the middle segment (F) is R-phase, and the internal microstructure of the root segment (F) is austenite A-Phase. The present invention further provides a manufacturing method for the NiTi alloy root canal file with the flexibility gradient. The beneficial effect of the present invention is effectively improving safety in use.