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:
Apr. 07, 2017
Applicant:
Olympus Corporation, Tokyo, JP;
Inventors:
Yutaka Masaki, Mitaka, JP;
Kimihiko Naito, Kawasaki, JP;
Assignee:
Olympus Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 1/005 (2006.01); A61B 1/00 (2006.01); A61B 1/018 (2006.01); A61B 1/05 (2006.01);
U.S. Cl.
CPC ...
A61B 1/00133 (2013.01); A61B 1/00009 (2013.01); A61B 1/0016 (2013.01); A61B 1/018 (2013.01); A61B 1/051 (2013.01); A61B 1/00135 (2013.01);
Abstract
A drive shaft extends inside a tubular section along a shaft axis, and the drive shaft rotates around the shaft axis while transmitting a driving force generated in a driving source to a driven portion. The drive shaft includes multiple extension sections, and a hard section. Each of the extension sections extends along the shaft axis. The hard section is interposed between two of the extension sections in a direction along the shaft axis, and has a higher rigidity in comparison to that of the extension sections.