公开(公告)号：US20190269300A1

公开(公告)日：2019-09-05

申请号：US16415364

申请日：2019-05-17

Applicant: OLYMPUS CORPORATION

Inventor： Toshihiro MATSUI ,  Koji YASUNAGA ,  Yuta SATO

IPC: A61B1/005

Abstract: An endoscope bending operation mechanism includes: an operation lever with one end being rotatably held; a frame configured to rotate with the operation lever; a fixing member rotatably supporting the frame; a rotation shaft coupled with an end portion of one of the frame and the fixing member; a bearing portion provided on the other of the frame and the fixing member and having a hole rotatably holding the rotation shaft; and a position defining portion configured to abut a part of the other of the frame and the fixing member to define a position of the rotation shaft. The position of the rotation shaft is adjustable, and by adjusting the position of the rotation shaft, a clearance between the bearing portion and the position defining portion in a direction along a central axis is adjusted.

公开(公告)号：US20160227986A1

公开(公告)日：2016-08-11

申请号：US15133266

申请日：2016-04-20

Applicant: OLYMPUS CORPORATION

Inventor： Koji YASUNAGA ,  Yuta SEKIGUCHI ,  Yuta SATO

IPC: A61B1/005

CPC classification number: A61B1/0057 ,  G02B23/2476

Abstract: An endoscope includes: operation wires insertedly arranged inside an insertion portion and an operation portion, the operation wires causing a bending portion to bend by being pulled/slackened; an operation member provided on the operation portion, the operation member performing a bending operation of the bending portion; a rotation member provided in the operation portion, the rotation member pulling/slackening the operation wires by rotating in conjunction with an operation of the operation member; and an amount-of-operation-force reducing portion giving rotation torque in a direction in which the rotation member inclines to reduce an amount of operation force of the operation member, in response to inclination of the operation member, wherein the rotation torque of the amount-of-operation-force reducing portion changes in conjunction with displacement of the operation member operated, and the amount-of-operation-force reducing portion offsets and reduces the amount of operation force required for the operation member.

Abstract translation: 内窥镜包括：插入地布置在插入部内的操作线和操作部，所述操作线通过拉/松而使弯曲部弯曲; 操作构件，其设置在所述操作部上，所述操作构件进行所述弯曲部的弯曲操作; 旋转构件，其设置在所述操作部中，所述旋转构件通过与所述操作构件的操作一起旋转来拉动/松弛所述操作线; 以及操作力减小部，其响应于所述操作构件的倾斜而在所述旋转构件倾斜的方向上产生旋转扭矩以减少所述操作构件的操作力的量，其中所述操作力减小部的旋转扭矩 操作力减小部分随着操作构件的位移而变化，并且操作力减小部分偏移并且减小操作构件所需的操作力量。

公开(公告)号：US20160231556A1

公开(公告)日：2016-08-11

申请号：US15132468

申请日：2016-04-19

Applicant: OLYMPUS CORPORATION

Inventor： Koji YASUNAGA ,  Yuta SEKIGUCHI ,  Yuta SATO

IPC: G02B23/24 ,  A61B1/005 ,  G01D11/16

CPC classification number: G02B23/2476 ,  A61B1/00098 ,  A61B1/0057 ,  F16L55/40 ,  G01D11/16

Abstract: An endoscope includes: an insertion portion; an operation portion; a bending wire that causes a bending portion to bend by pulling; a bending operation member that gives pulling force to the bending wire by swinging; an operation force reduction portion including a spring that can press the bending operation member; and a semi-fixation mechanism switch operation member that makes a switch to a pressing state, in which the spring presses the bending operation member, and to a non-pressing state.

Abstract translation: 内窥镜包括：插入部; 操作部分; 弯曲线，其通过拉动使弯曲部弯曲; 弯曲操作构件，其通过摆动向弯曲导线提供拉力; 操作力减小部分，包括能够按压弯曲操作构件的弹簧; 以及半固定机构切换操作构件，其将弹簧按压弯曲操作构件并进入非按压状态切换到按压状态。

公开(公告)号：US20170196435A1

公开(公告)日：2017-07-13

申请号：US15471126

申请日：2017-03-28

Applicant: OLYMPUS CORPORATION

Inventor： Yuta SATO ,  Toshihiro MATSUI ,  Takashi MATSUNAGA ,  Yuta SEKIGUCHI ,  Koji YASUNAGA

IPC: A61B1/005 ,  G02B23/24

Abstract: A bending operation mechanism of the endoscope is an operating section to operate a bending section, and a boot section to cover the main body of the operating section in a watertight manner by causing a tiltable operating lever provided at the frame section to pass through the boot section, includes a watertight fixing portion on its periphery. The endoscope includes a first fixing member engaged with the locking section of the frame section and locked unrotatably in the watertight fixing portion of the boot section to press the watertight fixing portion from an outer periphery side such that the watertight fixing portion is made watertight, and a second fixing member screwed with the frame section to fix the first fixing member on the frame section.