公开(公告)号：US09835845B2

公开(公告)日：2017-12-05

申请号：US15353830

申请日：2016-11-17

Applicant: OLYMPUS CORPORATION

Inventor： Soichiro Koshika ,  Yuji Sakai ,  Hiroyuki Takizawa ,  Daiki Ariyoshi

IPC: G02B23/24 ,  A61B1/00 ,  A61B1/04 ,  A61B1/06 ,  H04N5/225

CPC classification number: G02B23/2469 ,  A61B1/00 ,  A61B1/00117 ,  A61B1/00147 ,  A61B1/0016 ,  A61B1/00172 ,  A61B1/04 ,  A61B1/06 ,  G02B23/2476 ,  H04N5/2256 ,  H04N2005/2255

Abstract: A scanning endoscope includes: a light guide portion configured to guide an illuminating light that is emitted from a light source portion and irradiate an object with the illuminating light; an actuator configured to drive so as to cause a distal end of a light guide portion to scan, in order to scan the guided illuminating light over an object; a holding portion configured to hold the actuator; a rigid tubular member having a space that encloses the light guide portion, the actuator and the holding portion; and a connection portion that is interposed between the tubular member and the holding portion, and is configured to hold the holding portion at a prescribed position within the tubular member and to change shape in a circumferential direction that takes a longitudinal direction of the light guide portion as an axis when the tubular member or holding portion receives a force.

公开(公告)号：US09823467B2

公开(公告)日：2017-11-21

申请号：US15412419

申请日：2017-01-23

Applicant: OLYMPUS CORPORATION

Inventor： Yuji Sakai ,  Hiroyuki Takizawa ,  Daiki Ariyoshi ,  Soichiro Koshika

IPC: G02B6/06 ,  G02B26/10 ,  A61B1/06 ,  G02B23/24

CPC classification number: G02B26/103 ,  A61B1/00172 ,  A61B1/0661 ,  A61B1/07 ,  G02B23/2469

Abstract: A scanning type endoscope includes a light guide section configured to guide illumination light, a ferrule provided along the light guide section, an actuator configured to vibrate the ferrule to thereby swing a distal end of the light guide section, a cylindrical member configured to include a space containing the light guide section, the ferrule and the actuator and being provided along the light guide section, and a damping section configured to fix the ferrule to the cylindrical member and absorb vibration of the ferrule, in which the damping section is formed of a ferrule holding member configured to hold a proximal end of the ferrule and a ring-shaped member configured to fix the ferrule holding member to the cylindrical member, be disposed near a joint in the cylindrical member connected to holding member and be made of a material that absorbs vibration of the ferrule.

公开(公告)号：US09753281B2

公开(公告)日：2017-09-05

申请号：US15270572

申请日：2016-09-20

Applicant: OLYMPUS CORPORATION

Inventor： Hiroyuki Takizawa ,  Yuji Sakai ,  Daiki Ariyoshi ,  Soichiro Koshika

IPC: G02B26/10 ,  A61B1/00 ,  A61B1/005 ,  A61B1/06 ,  G02B23/24 ,  A61B5/00 ,  A61B1/07 ,  H04N5/225

CPC classification number: G02B26/103 ,  A61B1/00045 ,  A61B1/00078 ,  A61B1/00172 ,  A61B1/0051 ,  A61B1/0638 ,  A61B1/0669 ,  A61B1/07 ,  A61B5/0059 ,  G02B23/2469 ,  H04N2005/2255

Abstract: A scanning endoscope includes: an optical fiber that guides light emitted from a light source section, and emits the light from a distal end; an actuator that expands and contracts to scan with the light emitted from the distal end of the optical fiber; a ferrule that transmits, to the optical fiber, force corresponding to the expansion and contraction of the actuator; a ferrule holding part that holds the ferrule; a lens holding part that is formed of a cylindrical member provided outside the optical fiber along the optical fiber, and holds a lens, the lens receiving the light emitted from the distal end of the optical fiber; and an absorption part that absorbs vibration, in a longitudinal direction of the cylindrical member, of at least one of the ferrule holding part and the lens holding part.