公开(公告)号：US20170254964A1

公开(公告)日：2017-09-07

申请号：US15602832

申请日：2017-05-23

Applicant: OLYMPUS CORPORATION

Inventor： Hiroyoshi YAJIMA

IPC: G02B6/38 ,  F21V8/00 ,  G02B23/24 ,  A61B1/00

CPC classification number: G02B6/3877 ,  A61B1/00126 ,  A61B1/063 ,  A61B1/0669 ,  A61B1/07 ,  G02B6/0008 ,  G02B6/3821 ,  G02B6/3831 ,  G02B6/3849 ,  G02B6/3853 ,  G02B6/3878 ,  G02B23/2469 ,  G02B23/26

Abstract: An optical fiber connection mechanism includes a pair of connectors and a split sleeve that are used in an endoscope. The connectors include respective ferrules, an end of a single-mode optical fiber and a collimator lens is mounted in each ferrule, and the collimator lens is disposed at the tip of the single-mode optical fiber. The optical fiber connection mechanism is configured so that when the ferrules are inserted into ends of the split sleeve, the collimator lenses face each other with a gap therebetween and the single-mode optical fibers are optically connected to each other. The ferrules are loosely fit in the corresponding connectors to be displaceable within a predetermined range in the direction along the optical axis of the single-mode optical fibers.

公开(公告)号：US20170188800A1

公开(公告)日：2017-07-06

申请号：US15466173

申请日：2017-03-22

Applicant: OLYMPUS CORPORATION

Inventor： Yuchun FU ,  Makoto IGARASHI ,  Hiroyoshi YAJIMA ,  Mitsuru NAMIKI ,  Takeshi WATANABE

IPC: A61B1/018 ,  A61B1/00 ,  A61B1/06 ,  A61B1/07

CPC classification number: A61B1/018 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/00075 ,  A61B1/00096 ,  A61B1/00154 ,  A61B1/00165 ,  A61B1/0607 ,  A61B1/0661 ,  A61B1/07 ,  A61B90/30

Abstract: A medical sheath is a medical sheath to be used in combination with a medical device including an insertion portion that can be inserted into a body cavity of a subject via a trocar, the medical sheath including: a sheath body formed in a shape that can be inserted to and removed from a through hole through in the trocar; a channel provided in the sheath body, the channel having a shape that enables insertion and removal of the insertion portion; a first optical transmission section provided in the sheath body, the first optical transmission section being provided for guiding illuminating light; and a second optical transmission section that is provided in the sheath body and is separate from the first optical transmission section, the second optical transmission section being provided for guiding return light generated upon application of the illuminating light from the first optical transmission section.