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:
Apr. 06, 2004
Filed:
Mar. 13, 2002
Masakazu Higuma, Hachioji, JP;
Yasuyuki Futatsugi, Hachioji, JP;
Ichiro Nakamura, Kokubunji, JP;
Yosuke Yoshimoto, Hachioji, JP;
Hidetoshi Saito, Hanno, JP;
Susumu Aono, Hachioji, JP;
Takao Yamaguchi, Tokyo, JP;
Yutaka Tatsuno, Sagamihara, JP;
Takahiro Kishi, Yokohama, JP;
Yasuhito Kura, Hachioji, JP;
Kazutaka Nakatsuchi, Hino, JP;
Takeaki Nakamura, Hino, JP;
Olympus Corporation, , JP;
Abstract
An endoscope suitable for autoclave sterilization includes an insertion section having an objective lens section disposed at the extreme end thereof for focusing a subject image and an eyepiece section located on the base end side of the inserting section and including at least an eyepiece lens. an image guide fiber is disposed in the bundle for transmitting the subject image in an observation section focused by the objective lens section. An eyepiece lens unit is disposed in the eyepiece section, the eyepiece lens unit causing the eyepiece lens to confront the base end structure whose hermetic seal level is higher than the watertight seal level of the shell of the endoscope. A focus position changing means is disposed to the eyepiece lens unit to change the focus position of the eyepiece lens. The eyepiece section is so constructed and/or assembled that the autoclave sterilization process does not cause water vapor or the like to adversely affect the operability of the eyepiece section.