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:
Jul. 19, 2022
Filed:
Jul. 29, 2019
Olympus Corporation, Tokyo, JP;
Kazuya Saiga, Hachioji, JP;
OLYMPUS CORPORATION, Tokyo, JP;
Abstract
An endoscope valve for controlling connection states of a plurality of conduits formed in an endoscope includes: a piston portion; and an attachment member. The piston portion includes a seal portion. A surface of the attachment member facing the seal portion includes a first inner peripheral surface which is axially symmetrical to a central axis of the attachment member and has a diameter smaller than a diameter of an outer periphery of the seal portion, a second inner peripheral surface which is axially symmetrical to the central axis of the attachment member and has a diameter equal to or larger than the diameter of the outer periphery of the seal portion, and a connection surface which is axially symmetrical to the central axis of the attachment member and connects the first inner peripheral surface and the second inner peripheral surface to each other.