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:
Jan. 18, 2022
Filed:
Feb. 21, 2019
Olympus Corporation, Tokyo, JP;
Tetsuhiro Yamada, Hachioji, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
An advance and retreat assisting tool for a treatment instrument includes: a base; an attaching portion; a first cylinder which is attached to the base; a second cylinder which has a fixing portion fixing the treatment instrument and slides in an advance and retreat direction with respect to the first cylinder along a center axis of the first cylinder; an advance and retreat mechanism which advances and retreats the second cylinder along the center axis with respect to the first cylinder by rotation; and an assisting portion which urges the second cylinder in a predetermined direction along the center axis with respect to the base with an urging force smaller than a resistance force when the second cylinder slides and assists the rotation of the advance and retreat mechanism when the advance and retreat mechanism rotates in one direction.